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Fabricio VoznikaandgVisor bot
59f1b78fd5
Makes the naming consistent with the public configuration. There is no behavior change. Updates #4805 PiperOrigin-RevId: 462448505
81 lines
2.1 KiB
Go
81 lines
2.1 KiB
Go
// Copyright 2021 The gVisor Authors.
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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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package boot
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import (
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"encoding/json"
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"io"
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"os"
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"gvisor.dev/gvisor/pkg/fd"
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"gvisor.dev/gvisor/pkg/sentry/seccheck"
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// Register supported of sinks.
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_ "gvisor.dev/gvisor/pkg/sentry/seccheck/sinks/null"
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_ "gvisor.dev/gvisor/pkg/sentry/seccheck/sinks/remote"
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)
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// InitConfig represents the configuration to apply during pod creation. For
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// now, it supports setting up a seccheck session.
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type InitConfig struct {
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TraceSession seccheck.SessionConfig `json:"trace_session"`
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}
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func setupSeccheck(configFD int, sinkFDs []int) error {
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config := fd.New(configFD)
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defer config.Close()
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initConf, err := loadInitConfig(config)
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if err != nil {
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return err
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}
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return initConf.create(sinkFDs)
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}
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// LoadInitConfig loads an InitConfig struct from a json formatted file.
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func LoadInitConfig(path string) (*InitConfig, error) {
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config, err := os.Open(path)
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if err != nil {
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return nil, err
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}
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defer config.Close()
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return loadInitConfig(config)
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}
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func loadInitConfig(reader io.Reader) (*InitConfig, error) {
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decoder := json.NewDecoder(reader)
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decoder.DisallowUnknownFields()
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init := &InitConfig{}
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if err := decoder.Decode(init); err != nil {
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return nil, err
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}
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return init, nil
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}
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// Setup performs the actions defined in the InitConfig, e.g. setup seccheck
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// session.
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func (c *InitConfig) Setup() ([]*os.File, error) {
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return seccheck.SetupSinks(c.TraceSession.Sinks)
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}
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func (c *InitConfig) create(sinkFDs []int) error {
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for i, sinkFD := range sinkFDs {
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if sinkFD >= 0 {
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c.TraceSession.Sinks[i].FD = fd.New(sinkFD)
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}
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}
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return seccheck.Create(&c.TraceSession, false)
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}
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