From 473acc61c8392dc7ae303d91568e179c4f105a76 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Tue, 2 Jul 2019 12:12:53 +0200 Subject: add black list --- vendor/golang.org/x/net/bpf/vm_test.go | 144 --------------------------------- 1 file changed, 144 deletions(-) delete mode 100644 vendor/golang.org/x/net/bpf/vm_test.go (limited to 'vendor/golang.org/x/net/bpf/vm_test.go') diff --git a/vendor/golang.org/x/net/bpf/vm_test.go b/vendor/golang.org/x/net/bpf/vm_test.go deleted file mode 100644 index 6bd4dd5..0000000 --- a/vendor/golang.org/x/net/bpf/vm_test.go +++ /dev/null @@ -1,144 +0,0 @@ -// 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 ( - "fmt" - "testing" - - "golang.org/x/net/bpf" -) - -var _ bpf.Instruction = unknown{} - -type unknown struct{} - -func (unknown) Assemble() (bpf.RawInstruction, error) { - return bpf.RawInstruction{}, nil -} - -func TestVMUnknownInstruction(t *testing.T) { - vm, done, err := testVM(t, []bpf.Instruction{ - bpf.LoadConstant{ - Dst: bpf.RegA, - Val: 100, - }, - // Should terminate the program with an error immediately - unknown{}, - bpf.RetA{}, - }) - if err != nil { - t.Fatalf("unexpected error: %v", err) - } - defer done() - - _, err = vm.Run([]byte{ - 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, - 0x00, 0x00, - }) - if errStr(err) != "unknown Instruction at index 1: bpf_test.unknown" { - t.Fatalf("unexpected error while running program: %v", err) - } -} - -func TestVMNoReturnInstruction(t *testing.T) { - _, _, err := testVM(t, []bpf.Instruction{ - bpf.LoadConstant{ - Dst: bpf.RegA, - Val: 1, - }, - }) - if errStr(err) != "BPF program must end with RetA or RetConstant" { - t.Fatalf("unexpected error: %v", err) - } -} - -func TestVMNoInputInstructions(t *testing.T) { - _, _, err := testVM(t, []bpf.Instruction{}) - if errStr(err) != "one or more Instructions must be specified" { - t.Fatalf("unexpected error: %v", err) - } -} - -// ExampleNewVM demonstrates usage of a VM, using an Ethernet frame -// as input and checking its EtherType to determine if it should be accepted. -func ExampleNewVM() { - // Offset | Length | Comment - // ------------------------- - // 00 | 06 | Ethernet destination MAC address - // 06 | 06 | Ethernet source MAC address - // 12 | 02 | Ethernet EtherType - const ( - etOff = 12 - etLen = 2 - - etARP = 0x0806 - ) - - // Set up a VM to filter traffic based on if its EtherType - // matches the ARP EtherType. - vm, err := bpf.NewVM([]bpf.Instruction{ - // Load EtherType value from Ethernet header - bpf.LoadAbsolute{ - Off: etOff, - Size: etLen, - }, - // If EtherType is equal to the ARP EtherType, jump to allow - // packet to be accepted - bpf.JumpIf{ - Cond: bpf.JumpEqual, - Val: etARP, - SkipTrue: 1, - }, - // EtherType does not match the ARP EtherType - bpf.RetConstant{ - Val: 0, - }, - // EtherType matches the ARP EtherType, accept up to 1500 - // bytes of packet - bpf.RetConstant{ - Val: 1500, - }, - }) - if err != nil { - panic(fmt.Sprintf("failed to load BPF program: %v", err)) - } - - // Create an Ethernet frame with the ARP EtherType for testing - frame := []byte{ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, - 0x08, 0x06, - // Payload omitted for brevity - } - - // Run our VM's BPF program using the Ethernet frame as input - out, err := vm.Run(frame) - if err != nil { - panic(fmt.Sprintf("failed to accept Ethernet frame: %v", err)) - } - - // BPF VM can return a byte count greater than the number of input - // bytes, so trim the output to match the input byte length - if out > len(frame) { - out = len(frame) - } - - fmt.Printf("out: %d bytes", out) - - // Output: - // out: 14 bytes -} - -// errStr returns the string representation of an error, or -// "" if it is nil. -func errStr(err error) string { - if err == nil { - return "" - } - - return err.Error() -} -- cgit v1.2.3