mirror of
https://github.com/ceph/ceph-csi.git
synced 2025-03-10 01:19:29 +00:00
f87d06ed85
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
368 lines
7.4 KiB
Go
368 lines
7.4 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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// This file is a simple protocol buffer encoder and decoder.
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// The format is described at
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// https://developers.google.com/protocol-buffers/docs/encoding
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//
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// A protocol message must implement the message interface:
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// decoder() []decoder
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// encode(*buffer)
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//
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// The decode method returns a slice indexed by field number that gives the
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// function to decode that field.
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// The encode method encodes its receiver into the given buffer.
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//
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// The two methods are simple enough to be implemented by hand rather than
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// by using a protocol compiler.
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//
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// See profile.go for examples of messages implementing this interface.
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//
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// There is no support for groups, message sets, or "has" bits.
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package profile
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import (
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"errors"
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"fmt"
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)
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type buffer struct {
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field int // field tag
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typ int // proto wire type code for field
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u64 uint64
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data []byte
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tmp [16]byte
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tmpLines []Line // temporary storage used while decoding "repeated Line".
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}
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type decoder func(*buffer, message) error
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type message interface {
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decoder() []decoder
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encode(*buffer)
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}
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func marshal(m message) []byte {
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var b buffer
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m.encode(&b)
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return b.data
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}
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func encodeVarint(b *buffer, x uint64) {
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for x >= 128 {
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b.data = append(b.data, byte(x)|0x80)
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x >>= 7
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}
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b.data = append(b.data, byte(x))
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}
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func encodeLength(b *buffer, tag int, len int) {
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encodeVarint(b, uint64(tag)<<3|2)
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encodeVarint(b, uint64(len))
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}
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func encodeUint64(b *buffer, tag int, x uint64) {
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// append varint to b.data
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encodeVarint(b, uint64(tag)<<3)
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encodeVarint(b, x)
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}
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func encodeUint64s(b *buffer, tag int, x []uint64) {
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if len(x) > 2 {
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// Use packed encoding
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n1 := len(b.data)
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for _, u := range x {
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encodeVarint(b, u)
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}
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n2 := len(b.data)
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encodeLength(b, tag, n2-n1)
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n3 := len(b.data)
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copy(b.tmp[:], b.data[n2:n3])
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copy(b.data[n1+(n3-n2):], b.data[n1:n2])
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copy(b.data[n1:], b.tmp[:n3-n2])
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return
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}
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for _, u := range x {
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encodeUint64(b, tag, u)
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}
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}
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func encodeUint64Opt(b *buffer, tag int, x uint64) {
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if x == 0 {
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return
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}
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encodeUint64(b, tag, x)
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}
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func encodeInt64(b *buffer, tag int, x int64) {
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u := uint64(x)
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encodeUint64(b, tag, u)
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}
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func encodeInt64s(b *buffer, tag int, x []int64) {
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if len(x) > 2 {
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// Use packed encoding
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n1 := len(b.data)
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for _, u := range x {
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encodeVarint(b, uint64(u))
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}
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n2 := len(b.data)
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encodeLength(b, tag, n2-n1)
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n3 := len(b.data)
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copy(b.tmp[:], b.data[n2:n3])
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copy(b.data[n1+(n3-n2):], b.data[n1:n2])
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copy(b.data[n1:], b.tmp[:n3-n2])
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return
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}
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for _, u := range x {
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encodeInt64(b, tag, u)
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}
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}
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func encodeInt64Opt(b *buffer, tag int, x int64) {
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if x == 0 {
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return
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}
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encodeInt64(b, tag, x)
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}
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func encodeString(b *buffer, tag int, x string) {
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encodeLength(b, tag, len(x))
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b.data = append(b.data, x...)
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}
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func encodeStrings(b *buffer, tag int, x []string) {
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for _, s := range x {
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encodeString(b, tag, s)
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}
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}
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func encodeBool(b *buffer, tag int, x bool) {
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if x {
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encodeUint64(b, tag, 1)
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} else {
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encodeUint64(b, tag, 0)
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}
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}
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func encodeBoolOpt(b *buffer, tag int, x bool) {
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if x {
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encodeBool(b, tag, x)
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}
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}
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func encodeMessage(b *buffer, tag int, m message) {
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n1 := len(b.data)
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m.encode(b)
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n2 := len(b.data)
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encodeLength(b, tag, n2-n1)
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n3 := len(b.data)
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copy(b.tmp[:], b.data[n2:n3])
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copy(b.data[n1+(n3-n2):], b.data[n1:n2])
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copy(b.data[n1:], b.tmp[:n3-n2])
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}
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func unmarshal(data []byte, m message) (err error) {
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b := buffer{data: data, typ: 2}
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return decodeMessage(&b, m)
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}
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func le64(p []byte) uint64 {
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return uint64(p[0]) | uint64(p[1])<<8 | uint64(p[2])<<16 | uint64(p[3])<<24 | uint64(p[4])<<32 | uint64(p[5])<<40 | uint64(p[6])<<48 | uint64(p[7])<<56
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}
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func le32(p []byte) uint32 {
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return uint32(p[0]) | uint32(p[1])<<8 | uint32(p[2])<<16 | uint32(p[3])<<24
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}
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func decodeVarint(data []byte) (uint64, []byte, error) {
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var u uint64
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for i := 0; ; i++ {
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if i >= 10 || i >= len(data) {
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return 0, nil, errors.New("bad varint")
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}
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u |= uint64(data[i]&0x7F) << uint(7*i)
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if data[i]&0x80 == 0 {
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return u, data[i+1:], nil
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}
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}
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}
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func decodeField(b *buffer, data []byte) ([]byte, error) {
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x, data, err := decodeVarint(data)
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if err != nil {
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return nil, err
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}
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b.field = int(x >> 3)
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b.typ = int(x & 7)
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b.data = nil
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b.u64 = 0
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switch b.typ {
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case 0:
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b.u64, data, err = decodeVarint(data)
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if err != nil {
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return nil, err
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}
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case 1:
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if len(data) < 8 {
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return nil, errors.New("not enough data")
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}
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b.u64 = le64(data[:8])
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data = data[8:]
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case 2:
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var n uint64
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n, data, err = decodeVarint(data)
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if err != nil {
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return nil, err
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}
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if n > uint64(len(data)) {
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return nil, errors.New("too much data")
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}
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b.data = data[:n]
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data = data[n:]
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case 5:
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if len(data) < 4 {
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return nil, errors.New("not enough data")
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}
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b.u64 = uint64(le32(data[:4]))
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data = data[4:]
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default:
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return nil, fmt.Errorf("unknown wire type: %d", b.typ)
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}
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return data, nil
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}
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func checkType(b *buffer, typ int) error {
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if b.typ != typ {
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return errors.New("type mismatch")
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}
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return nil
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}
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func decodeMessage(b *buffer, m message) error {
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if err := checkType(b, 2); err != nil {
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return err
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}
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dec := m.decoder()
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data := b.data
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for len(data) > 0 {
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// pull varint field# + type
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var err error
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data, err = decodeField(b, data)
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if err != nil {
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return err
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}
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if b.field >= len(dec) || dec[b.field] == nil {
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continue
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}
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if err := dec[b.field](b, m); err != nil {
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return err
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}
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}
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return nil
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}
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func decodeInt64(b *buffer, x *int64) error {
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if err := checkType(b, 0); err != nil {
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return err
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}
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*x = int64(b.u64)
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return nil
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}
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func decodeInt64s(b *buffer, x *[]int64) error {
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if b.typ == 2 {
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// Packed encoding
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data := b.data
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for len(data) > 0 {
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var u uint64
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var err error
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if u, data, err = decodeVarint(data); err != nil {
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return err
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}
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*x = append(*x, int64(u))
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}
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return nil
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}
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var i int64
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if err := decodeInt64(b, &i); err != nil {
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return err
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}
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*x = append(*x, i)
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return nil
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}
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func decodeUint64(b *buffer, x *uint64) error {
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if err := checkType(b, 0); err != nil {
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return err
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}
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*x = b.u64
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return nil
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}
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func decodeUint64s(b *buffer, x *[]uint64) error {
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if b.typ == 2 {
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data := b.data
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// Packed encoding
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for len(data) > 0 {
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var u uint64
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var err error
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if u, data, err = decodeVarint(data); err != nil {
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return err
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}
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*x = append(*x, u)
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}
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return nil
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}
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var u uint64
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if err := decodeUint64(b, &u); err != nil {
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return err
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}
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*x = append(*x, u)
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return nil
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}
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func decodeString(b *buffer, x *string) error {
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if err := checkType(b, 2); err != nil {
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return err
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}
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*x = string(b.data)
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return nil
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}
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func decodeStrings(b *buffer, x *[]string) error {
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var s string
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if err := decodeString(b, &s); err != nil {
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return err
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}
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*x = append(*x, s)
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return nil
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}
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func decodeBool(b *buffer, x *bool) error {
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if err := checkType(b, 0); err != nil {
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return err
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}
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if int64(b.u64) == 0 {
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*x = false
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} else {
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*x = true
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}
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return nil
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}
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