/
sockaddr.go
85 lines (74 loc) · 1.96 KB
/
sockaddr.go
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// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. 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
//
// 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.
package auparse
import (
"strconv"
)
func parseSockaddr(s string) (map[string]string, error) {
addressFamily, err := hexToDec(s[2:4] + s[0:2]) // host-order
if err != nil {
return nil, err
}
out := map[string]string{}
switch addressFamily {
case 1: // AF_UNIX
socket, err := hexToString(s[4:])
if err != nil {
return nil, err
}
out["family"] = "unix"
out["path"] = socket
case 2: // AF_INET
port, err := hexToDec(s[4:8])
if err != nil {
return nil, err
}
ip, err := hexToIP(s[8:16])
if err != nil {
return nil, err
}
out["family"] = "ipv4"
out["addr"] = ip
out["port"] = strconv.Itoa(int(port))
case 10: // AF_INET6
port, err := hexToDec(s[4:8])
if err != nil {
return nil, err
}
flow, err := hexToDec(s[8:16])
if err != nil {
return nil, err
}
ip, err := hexToIP(s[16:48])
if err != nil {
return nil, err
}
out["family"] = "ipv6"
out["addr"] = ip
out["port"] = strconv.Itoa(int(port))
if flow > 0 {
out["flow"] = strconv.Itoa(int(flow))
}
case 16: // AF_NETLINK
out["family"] = "netlink"
out["saddr"] = s
default:
out["family"] = strconv.Itoa(int(addressFamily))
out["saddr"] = s
}
return out, nil
}