From 8f91c777559748fa6e857d9fc1f4ae079a532813 Mon Sep 17 00:00:00 2001 From: Christopher Speller Date: Mon, 3 Oct 2016 16:03:15 -0400 Subject: Adding ability to serve TLS directly from Mattermost server (#4119) --- vendor/golang.org/x/net/bpf/vm_aluop_test.go | 512 +++++++++++++++++++++++++++ 1 file changed, 512 insertions(+) create mode 100644 vendor/golang.org/x/net/bpf/vm_aluop_test.go (limited to 'vendor/golang.org/x/net/bpf/vm_aluop_test.go') diff --git a/vendor/golang.org/x/net/bpf/vm_aluop_test.go b/vendor/golang.org/x/net/bpf/vm_aluop_test.go new file mode 100644 index 000000000..16678244a --- /dev/null +++ b/vendor/golang.org/x/net/bpf/vm_aluop_test.go @@ -0,0 +1,512 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package bpf_test + +import ( + "testing" + + "golang.org/x/net/bpf" +) + +func TestVMALUOpAdd(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpAdd, + Val: 3, + }, + bpf.RetA{}, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 8, 2, 3, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 3, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpSub(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.TAX{}, + bpf.ALUOpX{ + Op: bpf.ALUOpSub, + }, + bpf.RetA{}, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 1, 2, 3, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 0, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpMul(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpMul, + Val: 2, + }, + bpf.RetA{}, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 6, 2, 3, 4, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 4, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpDiv(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpDiv, + Val: 2, + }, + bpf.RetA{}, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 20, 2, 3, 4, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 2, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpDivByZeroALUOpConstant(t *testing.T) { + _, _, err := testVM(t, []bpf.Instruction{ + bpf.ALUOpConstant{ + Op: bpf.ALUOpDiv, + Val: 0, + }, + bpf.RetA{}, + }) + if errStr(err) != "cannot divide by zero using ALUOpConstant" { + t.Fatalf("unexpected error: %v", err) + } +} + +func TestVMALUOpDivByZeroALUOpX(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + // Load byte 0 into X + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.TAX{}, + // Load byte 1 into A + bpf.LoadAbsolute{ + Off: 9, + Size: 1, + }, + // Attempt to perform 1/0 + bpf.ALUOpX{ + Op: bpf.ALUOpDiv, + }, + // Return 4 bytes if program does not terminate + bpf.LoadConstant{ + Val: 12, + }, + bpf.RetA{}, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0, 1, 3, 4, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 0, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpOr(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 2, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpOr, + Val: 0x01, + }, + bpf.RetA{}, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0x00, 0x10, 0x03, 0x04, + 0x05, 0x06, 0x07, 0x08, + 0x09, 0xff, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 9, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpAnd(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 2, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpAnd, + Val: 0x0019, + }, + bpf.RetA{}, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0xaa, 0x09, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 1, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpShiftLeft(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpShiftLeft, + Val: 0x01, + }, + bpf.JumpIf{ + Cond: bpf.JumpEqual, + Val: 0x02, + SkipTrue: 1, + }, + bpf.RetConstant{ + Val: 0, + }, + bpf.RetConstant{ + Val: 9, + }, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0x01, 0xaa, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 1, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpShiftRight(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpShiftRight, + Val: 0x01, + }, + bpf.JumpIf{ + Cond: bpf.JumpEqual, + Val: 0x04, + SkipTrue: 1, + }, + bpf.RetConstant{ + Val: 0, + }, + bpf.RetConstant{ + Val: 9, + }, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0x08, 0xff, 0xff, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 1, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpMod(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpMod, + Val: 20, + }, + bpf.RetA{}, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 30, 0, 0, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 2, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpModByZeroALUOpConstant(t *testing.T) { + _, _, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpMod, + Val: 0, + }, + bpf.RetA{}, + }) + if errStr(err) != "cannot divide by zero using ALUOpConstant" { + t.Fatalf("unexpected error: %v", err) + } +} + +func TestVMALUOpModByZeroALUOpX(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + // Load byte 0 into X + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.TAX{}, + // Load byte 1 into A + bpf.LoadAbsolute{ + Off: 9, + Size: 1, + }, + // Attempt to perform 1%0 + bpf.ALUOpX{ + Op: bpf.ALUOpMod, + }, + // Return 4 bytes if program does not terminate + bpf.LoadConstant{ + Val: 12, + }, + bpf.RetA{}, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0, 1, 3, 4, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 0, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpXor(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpXor, + Val: 0x0a, + }, + bpf.JumpIf{ + Cond: bpf.JumpEqual, + Val: 0x01, + SkipTrue: 1, + }, + bpf.RetConstant{ + Val: 0, + }, + bpf.RetConstant{ + Val: 9, + }, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0x0b, 0x00, 0x00, 0x00, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 1, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} + +func TestVMALUOpUnknown(t *testing.T) { + vm, done, err := testVM(t, []bpf.Instruction{ + bpf.LoadAbsolute{ + Off: 8, + Size: 1, + }, + bpf.ALUOpConstant{ + Op: bpf.ALUOpAdd, + Val: 1, + }, + // Verify that an unknown operation is a no-op + bpf.ALUOpConstant{ + Op: 100, + }, + bpf.JumpIf{ + Cond: bpf.JumpEqual, + Val: 0x02, + SkipTrue: 1, + }, + bpf.RetConstant{ + Val: 0, + }, + bpf.RetConstant{ + Val: 9, + }, + }) + if err != nil { + t.Fatalf("failed to load BPF program: %v", err) + } + defer done() + + out, err := vm.Run([]byte{ + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 1, + }) + if err != nil { + t.Fatalf("unexpected error while running program: %v", err) + } + if want, got := 1, out; want != got { + t.Fatalf("unexpected number of output bytes:\n- want: %d\n- got: %d", + want, got) + } +} -- cgit v1.2.3-1-g7c22