github.com/fafucoder/cilium@v1.6.11/proxylib/testparsers/passer.go (about)

     1  // Copyright 2018 Authors of Cilium
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package testparsers
    16  
    17  import (
    18  	. "github.com/cilium/cilium/proxylib/proxylib"
    19  
    20  	log "github.com/sirupsen/logrus"
    21  )
    22  
    23  type PasserParserFactory struct{}
    24  
    25  func init() {
    26  	log.Debug("init(): Registering PasserParserFactory")
    27  	RegisterParserFactory("test.passer", &PasserParserFactory{})
    28  }
    29  
    30  type PasserParser struct{}
    31  
    32  func (p *PasserParserFactory) Create(connection *Connection) Parser {
    33  	// Reject invalid policy name for testing purposes
    34  	if connection.PolicyName == "invalid-policy" {
    35  		return nil
    36  	}
    37  
    38  	log.Debugf("PasserParserFactory: Create: %v", connection)
    39  	return &PasserParser{}
    40  }
    41  
    42  //
    43  // This simply passes all data in either direction.
    44  //
    45  func (p *PasserParser) OnData(reply, endStream bool, data [][]byte) (OpType, int) {
    46  	n_bytes := 0
    47  	for _, s := range data {
    48  		n_bytes += len(s)
    49  	}
    50  	if n_bytes == 0 {
    51  		return NOP, 0
    52  	}
    53  	if !reply {
    54  		log.Debugf("PasserParser: Request: %d bytes", n_bytes)
    55  	} else {
    56  		log.Debugf("PasserParser: Response: %d bytes", n_bytes)
    57  	}
    58  	return PASS, n_bytes
    59  }