1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// Copyright 2012 Google, Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file in the root of the source
// tree.
package layers
import (
"fmt"
"strconv"
"code.google.com/p/gopacket"
)
// TCPPort is a port in a TCP layer.
type TCPPort uint16
// UDPPort is a port in a UDP layer.
type UDPPort uint16
// RUDPPort is a port in a RUDP layer.
type RUDPPort uint8
// SCTPPort is a port in a SCTP layer.
type SCTPPort uint16
// UDPLitePort is a port in a UDPLite layer.
type UDPLitePort uint16
// RUDPPortNames contains the string names for all RUDP ports.
var RUDPPortNames = map[RUDPPort]string{}
// UDPLitePortNames contains the string names for all UDPLite ports.
var UDPLitePortNames = map[UDPLitePort]string{}
// {TCP,UDP,SCTP}PortNames can be found in iana_ports.go
// String returns the port as "number(name)" if there's a well-known port name,
// or just "number" if there isn't. Well-known names are stored in
// TCPPortNames.
func (a TCPPort) String() string {
if name, ok := TCPPortNames[a]; ok {
return fmt.Sprintf("%d(%s)", a, name)
}
return strconv.Itoa(int(a))
}
// String returns the port as "number(name)" if there's a well-known port name,
// or just "number" if there isn't. Well-known names are stored in
// UDPPortNames.
func (a UDPPort) String() string {
if name, ok := UDPPortNames[a]; ok {
return fmt.Sprintf("%d(%s)", a, name)
}
return strconv.Itoa(int(a))
}
// LayerType returns a LayerType that would be able to decode the
// application payload. It use some well-known port such as 53 for DNS.
//
// Returns gopacket.LayerTypePayload for unknown/unsupported port numbers.
func (a UDPPort) LayerType() gopacket.LayerType {
switch a {
case 53:
return LayerTypeDNS
default:
return gopacket.LayerTypePayload
}
}
// String returns the port as "number(name)" if there's a well-known port name,
// or just "number" if there isn't. Well-known names are stored in
// RUDPPortNames.
func (a RUDPPort) String() string {
if name, ok := RUDPPortNames[a]; ok {
return fmt.Sprintf("%d(%s)", a, name)
}
return strconv.Itoa(int(a))
}
// String returns the port as "number(name)" if there's a well-known port name,
// or just "number" if there isn't. Well-known names are stored in
// SCTPPortNames.
func (a SCTPPort) String() string {
if name, ok := SCTPPortNames[a]; ok {
return fmt.Sprintf("%d(%s)", a, name)
}
return strconv.Itoa(int(a))
}
// String returns the port as "number(name)" if there's a well-known port name,
// or just "number" if there isn't. Well-known names are stored in
// UDPLitePortNames.
func (a UDPLitePort) String() string {
if name, ok := UDPLitePortNames[a]; ok {
return fmt.Sprintf("%d(%s)", a, name)
}
return strconv.Itoa(int(a))
}
|
