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Diffstat (limited to 'pkg/abi/linux/bpf.go')
-rw-r--r-- | pkg/abi/linux/bpf.go | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/pkg/abi/linux/bpf.go b/pkg/abi/linux/bpf.go new file mode 100644 index 000000000..aa3d3ce70 --- /dev/null +++ b/pkg/abi/linux/bpf.go @@ -0,0 +1,34 @@ +// Copyright 2018 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package linux + +// BPFInstruction is a raw BPF virtual machine instruction. +// +// +stateify savable +type BPFInstruction struct { + // OpCode is the operation to execute. + OpCode uint16 + + // JumpIfTrue is the number of instructions to skip if OpCode is a + // conditional instruction and the condition is true. + JumpIfTrue uint8 + + // JumpIfFalse is the number of instructions to skip if OpCode is a + // conditional instruction and the condition is false. + JumpIfFalse uint8 + + // K is a constant parameter. The meaning depends on the value of OpCode. + K uint32 +} |