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bacnet.go
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bacnet.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
*
* https://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 cmd
import (
"github.com/apache/plc4x/plc4go/tools/plc4xpcapanalyzer/config"
"github.com/apache/plc4x/plc4go/tools/plc4xpcapanalyzer/internal/analyzer"
"github.com/pkg/errors"
"github.com/rs/zerolog/log"
"os"
"github.com/spf13/cobra"
)
// bacnetCmd represents the bacnet command
var bacnetCmd = &cobra.Command{
Use: "bacnet [pcapfile]",
Short: "analyzes a pcap file using a bacnet driver",
Long: `Analyzes a pcap file using a bacnet driver
TODO: document me
`,
Args: func(cmd *cobra.Command, args []string) error {
if len(args) < 1 {
return errors.New("requires exactly one arguments")
}
pcapFile := args[0]
if _, err := os.Stat(pcapFile); errors.Is(err, os.ErrNotExist) {
return errors.Errorf("Pcap file not found %s", pcapFile)
}
return nil
},
Run: func(cmd *cobra.Command, args []string) {
pcapFile := args[0]
if !config.BacnetConfigInstance.NoFilter {
if config.BacnetConfigInstance.Filter != "" && config.BacnetConfigInstance.BacnetFilter != "" {
log.Debug().Str("filter", config.BacnetConfigInstance.Filter).Msg("Setting bacnet filter")
config.BacnetConfigInstance.Filter = config.BacnetConfigInstance.BacnetFilter
}
} else {
log.Info().Msg("All filtering disabled")
}
analyzer.Analyze(pcapFile, "bacnet")
println("Done")
},
}
func init() {
analyzeCmd.AddCommand(bacnetCmd)
bacnetCmd.PersistentFlags().StringVarP(&config.BacnetConfigInstance.BacnetFilter, "default-bacnet-filter", "", "udp port 47808 and udp[4:2] > 29", "Defines the default filter when bacnet is selected")
addAnalyzeFlags(bacnetCmd)
}