mirror of
https://github.com/hanzoai/visor.git
synced 2026-09-24 17:04:14 +00:00
urpc encodes with encoding/json, which walks the payload on every call: a realistic control.ExecArgs costs 7084ns and 10 allocations to cross. ZAP reads a field at a constant offset out of the buffer that arrived, so the same payload is 740ns and one allocation -- but only if the offsets are stated, and a stated offset that is wrong is silent corruption rather than a compile error. So state them from the types themselves. //tools/zap reflects over the payloads at build time and writes the wire as Go source with the offsets as constants. It lives inside Bazel because pkg/sentry/control cannot be imported from outside it: the *_go_proto packages it depends on have no source in the tree. Six payloads had no layout to state. A map, an interface and a type from another module have no offsets, so each is answered in the type: SaveOpts.Metadata and StartContainerArgs.InitialCgroups/Limits cross as lists of pairs; boot.Route.Destination restates net.IPNet as Subnet; OpenMountArgs restates the OCI mount fields the call actually uses; StartArgs.Spec and SinkConfig.Config carry their documents as the bytes they arrived as; MetricsRegistrationResponse carries the protocol buffer the same way; and seccheck's session options become a type instead of a map of any. ExecArgs and MetricsExportData still have none: ExecArgs holds live kernel objects behind an interface, and MetricsExportData reaches a prometheus snapshot whose labels are a map. Co-authored-by: Hanzo Dev <[email protected]>
236 lines
5.8 KiB
Go
236 lines
5.8 KiB
Go
// Copyright 2026 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.
|
|
|
|
// Code generated by zip; DO NOT EDIT.
|
|
|
|
package container
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"fmt"
|
|
"strings"
|
|
|
|
zap "github.com/zap-proto/go"
|
|
)
|
|
|
|
// ---- Mapping -----------------------------------------------------------
|
|
|
|
const (
|
|
mappingContainerAt = 0
|
|
mappingHostAt = 4
|
|
mappingSizeAt = 8
|
|
mappingSize = 16
|
|
)
|
|
|
|
var _ interface {
|
|
MarshalZAP() ([]byte, error)
|
|
UnmarshalZAP([]byte) error
|
|
} = (*Mapping)(nil)
|
|
|
|
// MarshalZAP writes Mapping from constant offsets.
|
|
func (x *Mapping) MarshalZAP() ([]byte, error) {
|
|
if x == nil {
|
|
return nil, nil
|
|
}
|
|
b := zap.NewBuilder(mappingSize + 256)
|
|
ob := b.StartObject(mappingSize)
|
|
ob.SetUint32(mappingContainerAt, uint32(x.Container))
|
|
ob.SetUint32(mappingHostAt, uint32(x.Host))
|
|
ob.SetUint32(mappingSizeAt, uint32(x.Size))
|
|
ob.FinishAsRoot()
|
|
return b.Finish(), nil
|
|
}
|
|
|
|
// UnmarshalZAP reads Mapping out of the buffer that arrived.
|
|
func (x *Mapping) UnmarshalZAP(data []byte) error {
|
|
if x == nil || len(data) == 0 {
|
|
return nil
|
|
}
|
|
m, err := zap.Parse(data)
|
|
if err != nil {
|
|
return fmt.Errorf("Mapping: %w", err)
|
|
}
|
|
o := m.Root()
|
|
x.Container = uint32(o.Uint32(mappingContainerAt))
|
|
x.Host = uint32(o.Uint32(mappingHostAt))
|
|
x.Size = uint32(o.Uint32(mappingSizeAt))
|
|
return nil
|
|
}
|
|
|
|
// ---- OpenMountArgs -----------------------------------------------------
|
|
|
|
const (
|
|
openMountArgsSourceAt = 0
|
|
openMountArgsOptionsAt = 8
|
|
openMountArgsUIDsAt = 16
|
|
openMountArgsGIDsAt = 24
|
|
openMountArgsFlagsAt = 32
|
|
openMountArgsSize = 40
|
|
)
|
|
|
|
var _ interface {
|
|
MarshalZAP() ([]byte, error)
|
|
UnmarshalZAP([]byte) error
|
|
} = (*OpenMountArgs)(nil)
|
|
|
|
// MarshalZAP writes OpenMountArgs from constant offsets.
|
|
func (x *OpenMountArgs) MarshalZAP() ([]byte, error) {
|
|
if x == nil {
|
|
return nil, nil
|
|
}
|
|
b := zap.NewBuilder(openMountArgsSize + 256)
|
|
optionsAt, optionsN := 0, len(x.Options)
|
|
if optionsN > 0 {
|
|
var blob []byte
|
|
for i := range x.Options {
|
|
enc := []byte(x.Options[i])
|
|
var n [4]byte
|
|
binary.LittleEndian.PutUint32(n[:], uint32(len(enc)))
|
|
blob = append(blob, n[:]...)
|
|
blob = append(blob, enc...)
|
|
}
|
|
optionsAt = b.WriteBytes(blob)
|
|
}
|
|
uIDsAt, uIDsN := 0, len(x.UIDs)
|
|
if uIDsN > 0 {
|
|
var blob []byte
|
|
for i := range x.UIDs {
|
|
enc, err := x.UIDs[i].MarshalZAP()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var n [4]byte
|
|
binary.LittleEndian.PutUint32(n[:], uint32(len(enc)))
|
|
blob = append(blob, n[:]...)
|
|
blob = append(blob, enc...)
|
|
}
|
|
uIDsAt = b.WriteBytes(blob)
|
|
}
|
|
gIDsAt, gIDsN := 0, len(x.GIDs)
|
|
if gIDsN > 0 {
|
|
var blob []byte
|
|
for i := range x.GIDs {
|
|
enc, err := x.GIDs[i].MarshalZAP()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var n [4]byte
|
|
binary.LittleEndian.PutUint32(n[:], uint32(len(enc)))
|
|
blob = append(blob, n[:]...)
|
|
blob = append(blob, enc...)
|
|
}
|
|
gIDsAt = b.WriteBytes(blob)
|
|
}
|
|
ob := b.StartObject(openMountArgsSize)
|
|
ob.SetText(openMountArgsSourceAt, string(x.Source))
|
|
ob.SetUint32(openMountArgsFlagsAt, uint32(x.Flags))
|
|
if optionsN > 0 {
|
|
ob.SetList(openMountArgsOptionsAt, optionsAt, optionsN)
|
|
}
|
|
if uIDsN > 0 {
|
|
ob.SetList(openMountArgsUIDsAt, uIDsAt, uIDsN)
|
|
}
|
|
if gIDsN > 0 {
|
|
ob.SetList(openMountArgsGIDsAt, gIDsAt, gIDsN)
|
|
}
|
|
ob.FinishAsRoot()
|
|
return b.Finish(), nil
|
|
}
|
|
|
|
// UnmarshalZAP reads OpenMountArgs out of the buffer that arrived.
|
|
func (x *OpenMountArgs) UnmarshalZAP(data []byte) error {
|
|
if x == nil || len(data) == 0 {
|
|
return nil
|
|
}
|
|
m, err := zap.Parse(data)
|
|
if err != nil {
|
|
return fmt.Errorf("OpenMountArgs: %w", err)
|
|
}
|
|
o := m.Root()
|
|
x.Source = string(strings.Clone(o.Text(openMountArgsSourceAt)))
|
|
if l := o.List(openMountArgsOptionsAt); l.Len() > 0 {
|
|
rows := make([]string, l.Len())
|
|
for i := range rows {
|
|
rows[i] = string(l.BytesAt(i))
|
|
}
|
|
x.Options = rows
|
|
}
|
|
if l := o.List(openMountArgsUIDsAt); l.Len() > 0 {
|
|
rows := make([]Mapping, l.Len())
|
|
for i := range rows {
|
|
if err := rows[i].UnmarshalZAP(l.BytesAt(i)); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
x.UIDs = rows
|
|
}
|
|
if l := o.List(openMountArgsGIDsAt); l.Len() > 0 {
|
|
rows := make([]Mapping, l.Len())
|
|
for i := range rows {
|
|
if err := rows[i].UnmarshalZAP(l.BytesAt(i)); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
x.GIDs = rows
|
|
}
|
|
x.Flags = uint32(o.Uint32(openMountArgsFlagsAt))
|
|
return nil
|
|
}
|
|
|
|
// ---- OpenMountResult ---------------------------------------------------
|
|
|
|
const (
|
|
openMountResultFilePayloadAt = 0
|
|
openMountResultSize = 8
|
|
)
|
|
|
|
var _ interface {
|
|
MarshalZAP() ([]byte, error)
|
|
UnmarshalZAP([]byte) error
|
|
} = (*OpenMountResult)(nil)
|
|
|
|
// MarshalZAP writes OpenMountResult from constant offsets.
|
|
func (x *OpenMountResult) MarshalZAP() ([]byte, error) {
|
|
if x == nil {
|
|
return nil, nil
|
|
}
|
|
b := zap.NewBuilder(openMountResultSize + 256)
|
|
ob := b.StartObject(openMountResultSize)
|
|
innerFilePayload, err := x.FilePayload.MarshalZAP()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ob.SetBytes(openMountResultFilePayloadAt, innerFilePayload)
|
|
ob.FinishAsRoot()
|
|
return b.Finish(), nil
|
|
}
|
|
|
|
// UnmarshalZAP reads OpenMountResult out of the buffer that arrived.
|
|
func (x *OpenMountResult) UnmarshalZAP(data []byte) error {
|
|
if x == nil || len(data) == 0 {
|
|
return nil
|
|
}
|
|
m, err := zap.Parse(data)
|
|
if err != nil {
|
|
return fmt.Errorf("OpenMountResult: %w", err)
|
|
}
|
|
o := m.Root()
|
|
if raw := o.Bytes(openMountResultFilePayloadAt); len(raw) > 0 {
|
|
if err := x.FilePayload.UnmarshalZAP(raw); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|