First commit

main
Loweel 5 months ago
parent 7f4b2b37a0
commit 6502dfe8f5
  1. 26
      00.memory.go
  2. 53
      conf.go
  3. 16
      go.mod
  4. 18
      go.sum
  5. 118
      interface.go
  6. 30
      main.go
  7. 67
      multicast.go
  8. 87
      orchestrator.go
  9. 191
      vendor/github.com/docker/libcontainer/LICENSE
  10. 16
      vendor/github.com/docker/libcontainer/NOTICE
  11. 2
      vendor/github.com/docker/libcontainer/netlink/MAINTAINERS
  12. 31
      vendor/github.com/docker/libcontainer/netlink/netlink.go
  13. 1321
      vendor/github.com/docker/libcontainer/netlink/netlink_linux.go
  14. 7
      vendor/github.com/docker/libcontainer/netlink/netlink_linux_armppc64.go
  15. 7
      vendor/github.com/docker/libcontainer/netlink/netlink_linux_notarm.go
  16. 88
      vendor/github.com/docker/libcontainer/netlink/netlink_unsupported.go
  17. 77
      vendor/github.com/docker/libcontainer/system/linux.go
  18. 27
      vendor/github.com/docker/libcontainer/system/proc.go
  19. 40
      vendor/github.com/docker/libcontainer/system/setns_linux.go
  20. 24
      vendor/github.com/docker/libcontainer/system/syscall_linux_386.go
  21. 25
      vendor/github.com/docker/libcontainer/system/syscall_linux_64.go
  22. 24
      vendor/github.com/docker/libcontainer/system/syscall_linux_arm.go
  23. 12
      vendor/github.com/docker/libcontainer/system/sysconfig.go
  24. 15
      vendor/github.com/docker/libcontainer/system/sysconfig_notcgo.go
  25. 99
      vendor/github.com/docker/libcontainer/system/xattrs_linux.go
  26. 16
      vendor/github.com/go-ping/ping/.editorconfig
  27. 2
      vendor/github.com/go-ping/ping/.gitignore
  28. 6
      vendor/github.com/go-ping/ping/.golangci.yml
  29. 46
      vendor/github.com/go-ping/ping/.goreleaser.yml
  30. 44
      vendor/github.com/go-ping/ping/CONTRIBUTING.md
  31. 21
      vendor/github.com/go-ping/ping/LICENSE
  32. 32
      vendor/github.com/go-ping/ping/Makefile
  33. 141
      vendor/github.com/go-ping/ping/README.md
  34. 53
      vendor/github.com/go-ping/ping/logger.go
  35. 103
      vendor/github.com/go-ping/ping/packetconn.go
  36. 821
      vendor/github.com/go-ping/ping/ping.go
  37. 19
      vendor/github.com/go-ping/ping/utils_linux.go
  38. 16
      vendor/github.com/go-ping/ping/utils_other.go
  39. 24
      vendor/github.com/go-ping/ping/utils_windows.go
  40. 9
      vendor/github.com/google/uuid/.travis.yml
  41. 10
      vendor/github.com/google/uuid/CONTRIBUTING.md
  42. 9
      vendor/github.com/google/uuid/CONTRIBUTORS
  43. 27
      vendor/github.com/google/uuid/LICENSE
  44. 19
      vendor/github.com/google/uuid/README.md
  45. 80
      vendor/github.com/google/uuid/dce.go
  46. 12
      vendor/github.com/google/uuid/doc.go
  47. 53
      vendor/github.com/google/uuid/hash.go
  48. 38
      vendor/github.com/google/uuid/marshal.go
  49. 90
      vendor/github.com/google/uuid/node.go
  50. 12
      vendor/github.com/google/uuid/node_js.go
  51. 33
      vendor/github.com/google/uuid/node_net.go
  52. 59
      vendor/github.com/google/uuid/sql.go
  53. 123
      vendor/github.com/google/uuid/time.go
  54. 43
      vendor/github.com/google/uuid/util.go
  55. 251
      vendor/github.com/google/uuid/uuid.go
  56. 44
      vendor/github.com/google/uuid/version1.go
  57. 51
      vendor/github.com/google/uuid/version4.go
  58. 1
      vendor/github.com/milosgajdos/tenus/.gitignore
  59. 191
      vendor/github.com/milosgajdos/tenus/LICENSE
  60. 6
      vendor/github.com/milosgajdos/tenus/Makefile
  61. 247
      vendor/github.com/milosgajdos/tenus/README.md
  62. 31
      vendor/github.com/milosgajdos/tenus/Vagrantfile
  63. 153
      vendor/github.com/milosgajdos/tenus/bridge_linux.go
  64. 10
      vendor/github.com/milosgajdos/tenus/doc.go
  65. 13
      vendor/github.com/milosgajdos/tenus/docker-compose.yaml
  66. 242
      vendor/github.com/milosgajdos/tenus/helpers_linux.go
  67. 333
      vendor/github.com/milosgajdos/tenus/link_linux.go
  68. 196
      vendor/github.com/milosgajdos/tenus/macvlan_linux.go
  69. 123
      vendor/github.com/milosgajdos/tenus/macvtap_linux.go
  70. 11
      vendor/github.com/milosgajdos/tenus/network.go
  71. 216
      vendor/github.com/milosgajdos/tenus/veth_linux.go
  72. 182
      vendor/github.com/milosgajdos/tenus/vlan_linux.go
  73. 3
      vendor/golang.org/x/net/AUTHORS
  74. 3
      vendor/golang.org/x/net/CONTRIBUTORS
  75. 27
      vendor/golang.org/x/net/LICENSE
  76. 22
      vendor/golang.org/x/net/PATENTS
  77. 41
      vendor/golang.org/x/net/bpf/asm.go
  78. 222
      vendor/golang.org/x/net/bpf/constants.go
  79. 82
      vendor/golang.org/x/net/bpf/doc.go
  80. 726
      vendor/golang.org/x/net/bpf/instructions.go
  81. 10
      vendor/golang.org/x/net/bpf/setter.go
  82. 150
      vendor/golang.org/x/net/bpf/vm.go
  83. 182
      vendor/golang.org/x/net/bpf/vm_instructions.go
  84. 59
      vendor/golang.org/x/net/icmp/dstunreach.go
  85. 173
      vendor/golang.org/x/net/icmp/echo.go
  86. 113
      vendor/golang.org/x/net/icmp/endpoint.go
  87. 170
      vendor/golang.org/x/net/icmp/extension.go
  88. 76
      vendor/golang.org/x/net/icmp/helper_posix.go
  89. 322
      vendor/golang.org/x/net/icmp/interface.go
  90. 69
      vendor/golang.org/x/net/icmp/ipv4.go
  91. 23
      vendor/golang.org/x/net/icmp/ipv6.go
  92. 104
      vendor/golang.org/x/net/icmp/listen_posix.go
  93. 34
      vendor/golang.org/x/net/icmp/listen_stub.go
  94. 162
      vendor/golang.org/x/net/icmp/message.go
  95. 52
      vendor/golang.org/x/net/icmp/messagebody.go
  96. 77
      vendor/golang.org/x/net/icmp/mpls.go
  97. 129
      vendor/golang.org/x/net/icmp/multipart.go
  98. 43
      vendor/golang.org/x/net/icmp/packettoobig.go
  99. 72
      vendor/golang.org/x/net/icmp/paramprob.go
  100. 11
      vendor/golang.org/x/net/icmp/sys_freebsd.go
  101. Some files were not shown because too many files have changed in this diff Show More

@ -0,0 +1,26 @@
package main
import (
"fmt"
"runtime"
"time"
)
func init() {
fmt.Println("Garbage Collector Thread Starting")
go memoryCleanerThread()
}
func memoryCleanerThread() {
for {
time.Sleep(10 * time.Minute)
fmt.Println("Time to clean memory...")
runtime.GC()
fmt.Println("Garbage Collection done.")
}
}

@ -0,0 +1,53 @@
package main
import (
"encoding/json"
"io/ioutil"
"log"
"os"
)
type AbstractConfig struct {
MulticastConfig struct {
MIPAddr string `json:"MIpAddr"`
MPort string `json:"MPort"`
} `json:"MulticastConfig"`
InterfaceConfig struct {
ExistingInterface string `json:"ExistingInterface"`
BridgeIPCIDR string `json:"BridgeIpCIDR"`
} `json:"InterfaceConfig"`
}
var a AbstractConfig
func init() {
//reading json file
file, err := ioutil.ReadFile("zoreide.json")
if err != nil {
log.Println("Cannot open config file", err.Error())
os.Exit(1)
}
err = json.Unmarshal([]byte(file), &a)
if err != nil {
log.Println("Cannot marshal json: ", err.Error())
os.Exit(1)
}
MulticastEntity.MIpAddr = a.MulticastConfig.MIPAddr
MulticastEntity.MPort = a.MulticastConfig.MPort
MulticastEntity.MaxDatagramSize = numberlenght
ZoreideBridge.BridgeIpCIDR = a.InterfaceConfig.BridgeIPCIDR
ZoreideBridge.ExistingInterface = a.InterfaceConfig.ExistingInterface
ZoreideBridge.IsActive = false
ZoreideBridge.IsAlpha = true
log.Println("Inizialized Generic Config: ", a)
log.Println("Inizialized Interface Config: ", ZoreideBridge)
log.Println("Inizialized Multicast Config: ", MulticastEntity)
}

@ -0,0 +1,16 @@
module zoreide
go 1.17
require (
github.com/go-ping/ping v0.0.0-20211130115550-779d1e919534
github.com/milosgajdos/tenus v0.0.3
)
require (
github.com/docker/libcontainer v2.2.1+incompatible // indirect
github.com/google/uuid v1.2.0 // indirect
golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4 // indirect
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005 // indirect
)

@ -0,0 +1,18 @@
github.com/docker/libcontainer v2.2.1+incompatible h1:++SbbkCw+X8vAd4j2gOCzZ2Nn7s2xFALTf7LZKmM1/0=
github.com/docker/libcontainer v2.2.1+incompatible/go.mod h1:osvj61pYsqhNCMLGX31xr7klUBhHb/ZBuXS0o1Fvwbw=
github.com/go-ping/ping v0.0.0-20211130115550-779d1e919534 h1:dhy9OQKGBh4zVXbjwbxxHjRxMJtLXj3zfgpBYQaR4Q4=
github.com/go-ping/ping v0.0.0-20211130115550-779d1e919534/go.mod h1:xIFjORFzTxqIV/tDVGO4eDy/bLuSyawEeojSm3GfRGk=
github.com/google/uuid v1.2.0 h1:qJYtXnJRWmpe7m/3XlyhrsLrEURqHRM2kxzoxXqyUDs=
github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/milosgajdos/tenus v0.0.3 h1:jmaJzwaY1DUyYVD0lM4U+uvP2kkEg1VahDqRFxIkVBE=
github.com/milosgajdos/tenus v0.0.3/go.mod h1:eIjx29vNeDOYWJuCnaHY2r4fq5egetV26ry3on7p8qY=
golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4 h1:b0LrWgu8+q7z4J+0Y3Umo5q1dL7NXBkKBWkaVkAq17E=
golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4/go.mod h1:RBQZq4jEuRlivfhVLdyRGr576XBO4/greRjx4P4O3yc=
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005 h1:pDMpM2zh2MT0kHy037cKlSby2nEhD50SYqwQk76Nm40=
golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

@ -0,0 +1,118 @@
package main
import (
"fmt"
"log"
"math/rand"
"net"
"strconv"
"time"
"github.com/go-ping/ping"
"github.com/milosgajdos/tenus"
)
type AbstractBridge struct {
ExistingInterface string
BridgeIpCIDR string
IsActive bool
IsAlpha bool
hIerarchyNumber int64
}
var ZoreideBridge AbstractBridge
func init() {
ZoreideBridge.initializeHierarchy()
}
func (b *AbstractBridge) initializeHierarchy() {
rand.Seed(time.Now().UnixNano())
var letterRunes = []rune("123456789")
num := make([]rune, numberlenght)
for i := range num {
num[i] = letterRunes[rand.Intn(len(letterRunes))]
}
zz, err := strconv.ParseInt(string(num), 10, 64)
if err != nil {
log.Println("Error generating number: ", err.Error())
b.hIerarchyNumber = 0
return
} else {
b.hIerarchyNumber = zz
log.Println("Success generating number: ", b.hIerarchyNumber)
}
}
func (b *AbstractBridge) configureIpAndBridgeUp() {
// we want the program to recover in case of issues
defer func() {
if r := recover(); r != nil {
fmt.Println("Recovered. Error:\n", r)
}
}()
// first we check the IP is free. Something weird could have happened in some
// other server
brIp, brIpNet, err := net.ParseCIDR(b.BridgeIpCIDR)
if err != nil {
log.Println(err.Error())
}
if doesIpExists(brIp.String()) {
log.Println("Cannot take this IP, it exists already: " + brIp.String())
return
}
br, err := tenus.NewLinkFrom(b.ExistingInterface)
if err != nil {
log.Println(err.Error())
}
if err := br.SetLinkIp(brIp, brIpNet); err != nil {
log.Println(err.Error())
}
}
func (b *AbstractBridge) removeIPandBridgeInt() {
br, err := tenus.NewLinkFrom(b.ExistingInterface)
if err != nil {
log.Println(err.Error())
}
brIp, brIpNet, err := net.ParseCIDR(b.BridgeIpCIDR)
if err != nil {
log.Println(err.Error())
}
if err := br.UnsetLinkIp(brIp, brIpNet); err != nil {
log.Println(err.Error())
}
}
func doesIpExists(bridgeip string) bool {
pinger, err := ping.NewPinger(bridgeip)
if err != nil {
log.Println("Ping error: " + err.Error())
}
// just in case it doesn't stops alone
defer pinger.Stop()
pinger.Count = 3
pinger.Interval = time.Duration(10 * time.Millisecond)
pinger.Timeout = time.Duration(1 * time.Second)
pinger.Run() // blocks until finished
stats := pinger.Statistics()
return stats.PacketsRecv > 0
}

@ -0,0 +1,30 @@
package main
import (
"os"
"os/signal"
"syscall"
)
var MulticastEntity AbstractMulticast
var BstChannel = make(chan string, 1)
const numberlenght = 18
func main() {
MulticastEntity.GetMulticastReady()
go MulticastEntity.WriteNumberToMulticast()
go MulticastEntity.ReadNumberFromMulticast()
go ZoreideBridge.BeTheBeta()
go ZoreideBridge.WaitForBeAlpha()
// Just a nice way to wait until the Operating system sends a kill signal.
// select{} was just horrible.
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
<-c
ZoreideBridge.removeIPandBridgeInt()
os.Exit(0)
}

@ -0,0 +1,67 @@
package main
import (
"log"
"net"
)
type AbstractMulticast struct {
MIpAddr string
MPort string
MaxDatagramSize int
MWaddr *net.UDPAddr
MRaddr *net.UDPAddr
Wconn *net.UDPConn
Rconn *net.UDPConn
}
func (mip *AbstractMulticast) CreateUdpAddr() {
// This Will create the local UDP Address
addr, err := net.ResolveUDPAddr("udp4", mip.MIpAddr+":"+mip.MPort)
if err != nil {
log.Fatal(err.Error())
}
mip.MRaddr = addr
log.Println("Multicast Listen addr created: ", mip.MRaddr.String())
// This will create the Writing UDP Addr
mip.MWaddr = addr
log.Println("Multicast Writing addr created: ", mip.MWaddr.String())
}
func (mip *AbstractMulticast) CreateWritingSocket() {
conn, err := net.DialUDP("udp4", nil, mip.MWaddr)
if err != nil {
log.Fatal(err.Error())
}
mip.Wconn = conn
log.Println("Multicast Writing Socket Created: ", mip.Wconn.LocalAddr().String(), "->", mip.Wconn.RemoteAddr().String())
}
func (mip *AbstractMulticast) CreateReadingSocket() {
// Open up a connection
conn, err := net.ListenMulticastUDP("udp", nil, mip.MRaddr)
if err != nil {
log.Fatal("UDP " + err.Error())
}
conn.SetReadBuffer(mip.MaxDatagramSize)
mip.Rconn = conn
log.Println("Multicast Reading Socket Created: ", mip.Rconn.LocalAddr().String())
}
func (mip *AbstractMulticast) GetMulticastReady() {
mip.CreateUdpAddr()
mip.CreateWritingSocket()
mip.CreateReadingSocket()
}

@ -0,0 +1,87 @@
package main
import (
"fmt"
"log"
"strconv"
"time"
)
func (mip *AbstractMulticast) WriteNumberToMulticast() {
log.Println("Initiating ticker")
bstNumber := fmt.Sprintf("%d", ZoreideBridge.hIerarchyNumber)
for range time.Tick(1 * time.Second) {
_, err := mip.Wconn.Write([]byte(bstNumber))
if err != nil {
log.Println("Cannot write to multicast:" + err.Error())
}
}
}
func (mip *AbstractMulticast) ReadNumberFromMulticast() {
log.Println("Initiating reader")
buffer := make([]byte, mip.MaxDatagramSize)
// Loop forever reading from the socket
for {
_, _, err := mip.Rconn.ReadFromUDP(buffer)
if err != nil {
log.Println("ReadFromUDP failed:", err)
}
BstChannel <- string(buffer)
}
}
func (b *AbstractBridge) BeTheBeta() {
log.Println("Inizializing Descalator")
ownNumber := b.hIerarchyNumber
for bstNumber := range BstChannel {
brdNumber, err := strconv.ParseInt(bstNumber, 10, 64)
if err != nil {
log.Println("Garbage received on multicast: ", bstNumber)
log.Println("Cannot convert to int64:", err.Error())
continue
}
if brdNumber > ownNumber {
log.Println("GULP! There is a bigger one, better descalating")
b.IsAlpha = false
if b.IsActive {
b.removeIPandBridgeInt()
b.IsActive = false
}
}
}
}
func (b *AbstractBridge) WaitForBeAlpha() {
log.Println("Inizializing Escalator")
for range time.Tick(5 * time.Second) {
if b.IsAlpha && !b.IsActive {
log.Println("I'm the ALPHA! Get out my path, losers!")
b.configureIpAndBridgeUp()
b.IsActive = true
}
b.IsAlpha = true
}
}

@ -0,0 +1,191 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
Copyright 2014 Docker, Inc.
Licensed 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.

@ -0,0 +1,16 @@
libcontainer
Copyright 2012-2015 Docker, Inc.
This product includes software developed at Docker, Inc. (http://www.docker.com).
The following is courtesy of our legal counsel:
Use and transfer of Docker may be subject to certain restrictions by the
United States and other governments.
It is your responsibility to ensure that your use and/or transfer does not
violate applicable laws.
For more information, please see http://www.bis.doc.gov
See also http://www.apache.org/dev/crypto.html and/or seek legal counsel.

@ -0,0 +1,2 @@
Michael Crosby <michael@crosbymichael.com> (@crosbymichael)
Guillaume J. Charmes <guillaume@docker.com> (@creack)

@ -0,0 +1,31 @@
// Packet netlink provide access to low level Netlink sockets and messages.
//
// Actual implementations are in:
// netlink_linux.go
// netlink_darwin.go
package netlink
import (
"errors"
"net"
)
var (
ErrWrongSockType = errors.New("Wrong socket type")
ErrShortResponse = errors.New("Got short response from netlink")
ErrInterfaceExists = errors.New("Network interface already exists")
)
// A Route is a subnet associated with the interface to reach it.
type Route struct {
*net.IPNet
Iface *net.Interface
Default bool
}
// An IfAddr defines IP network settings for a given network interface
type IfAddr struct {
Iface *net.Interface
IP net.IP
IPNet *net.IPNet
}

File diff suppressed because it is too large Load Diff

@ -0,0 +1,7 @@
// +build arm ppc64 ppc64le
package netlink
func ifrDataByte(b byte) uint8 {
return uint8(b)
}

@ -0,0 +1,7 @@
// +build !arm,!ppc64,!ppc64le
package netlink
func ifrDataByte(b byte) int8 {
return int8(b)
}

@ -0,0 +1,88 @@
// +build !linux
package netlink
import (
"errors"
"net"
)
var (
ErrNotImplemented = errors.New("not implemented")
)
func NetworkGetRoutes() ([]Route, error) {
return nil, ErrNotImplemented
}
func NetworkLinkAdd(name string, linkType string) error {
return ErrNotImplemented
}
func NetworkLinkDel(name string) error {
return ErrNotImplemented
}
func NetworkLinkUp(iface *net.Interface) error {
return ErrNotImplemented
}
func NetworkLinkAddIp(iface *net.Interface, ip net.IP, ipNet *net.IPNet) error {
return ErrNotImplemented
}
func NetworkLinkDelIp(iface *net.Interface, ip net.IP, ipNet *net.IPNet) error {
return ErrNotImplemented
}
func AddRoute(destination, source, gateway, device string) error {
return ErrNotImplemented
}
func AddDefaultGw(ip, device string) error {
return ErrNotImplemented
}
func NetworkSetMTU(iface *net.Interface, mtu int) error {
return ErrNotImplemented
}
func NetworkSetTxQueueLen(iface *net.Interface, txQueueLen int) error {
return ErrNotImplemented
}
func NetworkCreateVethPair(name1, name2 string, txQueueLen int) error {
return ErrNotImplemented
}
func NetworkChangeName(iface *net.Interface, newName string) error {
return ErrNotImplemented
}
func NetworkSetNsFd(iface *net.Interface, fd int) error {
return ErrNotImplemented
}
func NetworkSetNsPid(iface *net.Interface, nspid int) error {
return ErrNotImplemented
}
func NetworkSetMaster(iface, master *net.Interface) error {
return ErrNotImplemented
}
func NetworkLinkDown(iface *net.Interface) error {
return ErrNotImplemented
}
func CreateBridge(name string, setMacAddr bool) error {
return ErrNotImplemented
}
func DeleteBridge(name string) error {
return ErrNotImplemented
}
func AddToBridge(iface, master *net.Interface) error {
return ErrNotImplemented
}

@ -0,0 +1,77 @@
// +build linux
package system
import (
"os/exec"
"syscall"
"unsafe"
)
type ParentDeathSignal int
func (p ParentDeathSignal) Restore() error {
if p == 0 {
return nil
}
current, err := GetParentDeathSignal()
if err != nil {
return err
}
if p == current {
return nil
}
return p.Set()
}
func (p ParentDeathSignal) Set() error {
return SetParentDeathSignal(uintptr(p))
}
func Execv(cmd string, args []string, env []string) error {
name, err := exec.LookPath(cmd)
if err != nil {
return err
}
return syscall.Exec(name, args, env)
}
func SetParentDeathSignal(sig uintptr) error {
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_PDEATHSIG, sig, 0); err != 0 {
return err
}
return nil
}
func GetParentDeathSignal() (ParentDeathSignal, error) {
var sig int
_, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_GET_PDEATHSIG, uintptr(unsafe.Pointer(&sig)), 0)
if err != 0 {
return -1, err
}
return ParentDeathSignal(sig), nil
}
func SetKeepCaps() error {
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_KEEPCAPS, 1, 0); err != 0 {
return err
}
return nil
}
func ClearKeepCaps() error {
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_KEEPCAPS, 0, 0); err != 0 {
return err
}
return nil
}
func Setctty() error {
if _, _, err := syscall.RawSyscall(syscall.SYS_IOCTL, 0, uintptr(syscall.TIOCSCTTY), 0); err != 0 {
return err
}
return nil
}

@ -0,0 +1,27 @@
package system
import (
"io/ioutil"
"path/filepath"
"strconv"
"strings"
)
// look in /proc to find the process start time so that we can verify
// that this pid has started after ourself
func GetProcessStartTime(pid int) (string, error) {
data, err := ioutil.ReadFile(filepath.Join("/proc", strconv.Itoa(pid), "stat"))
if err != nil {
return "", err
}
parts := strings.Split(string(data), " ")
// the starttime is located at pos 22
// from the man page
//
// starttime %llu (was %lu before Linux 2.6)
// (22) The time the process started after system boot. In kernels before Linux 2.6, this
// value was expressed in jiffies. Since Linux 2.6, the value is expressed in clock ticks
// (divide by sysconf(_SC_CLK_TCK)).
return parts[22-1], nil // starts at 1
}

@ -0,0 +1,40 @@
package system
import (
"fmt"
"runtime"
"syscall"
)
// Via http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b21fddd087678a70ad64afc0f632e0f1071b092
//
// We need different setns values for the different platforms and arch
// We are declaring the macro here because the SETNS syscall does not exist in th stdlib
var setNsMap = map[string]uintptr{
"linux/386": 346,
"linux/arm64": 268,
"linux/amd64": 308,
"linux/arm": 375,
"linux/ppc": 350,
"linux/ppc64": 350,
"linux/ppc64le": 350,
"linux/s390x": 339,
}
var sysSetns = setNsMap[fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)]
func SysSetns() uint32 {
return uint32(sysSetns)
}
func Setns(fd uintptr, flags uintptr) error {
ns, exists := setNsMap[fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)]
if !exists {
return fmt.Errorf("unsupported platform %s/%s", runtime.GOOS, runtime.GOARCH)
}
_, _, err := syscall.RawSyscall(ns, fd, flags, 0)
if err != 0 {
return err
}
return nil
}

@ -0,0 +1,24 @@
// +build linux,386
package system
import (
"syscall"
)
// Setuid sets the uid of the calling thread to the specified uid.
func Setuid(uid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETUID, uintptr(uid), 0, 0)
if e1 != 0 {
err = e1
}
return
}
// Setgid sets the gid of the calling thread to the specified gid.
func Setgid(gid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETGID32, uintptr(gid), 0, 0)
if e1 != 0 {
err = e1
}
return
}

@ -0,0 +1,25 @@
// +build linux,arm64 linux,amd64 linux,ppc linux,ppc64 linux,ppc64le linux,s390x
package system
import (
"syscall"
)
// Setuid sets the uid of the calling thread to the specified uid.
func Setuid(uid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETUID, uintptr(uid), 0, 0)
if e1 != 0 {
err = e1
}
return
}
// Setgid sets the gid of the calling thread to the specified gid.
func Setgid(gid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETGID, uintptr(gid), 0, 0)
if e1 != 0 {
err = e1
}
return
}

@ -0,0 +1,24 @@
// +build linux,arm
package system
import (
"syscall"
)
// Setuid sets the uid of the calling thread to the specified uid.
func Setuid(uid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETUID32, uintptr(uid), 0, 0)
if e1 != 0 {
err = e1
}
return
}
// Setgid sets the gid of the calling thread to the specified gid.
func Setgid(gid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETGID32, uintptr(gid), 0, 0)
if e1 != 0 {
err = e1
}
return
}

@ -0,0 +1,12 @@
// +build cgo,linux cgo,freebsd
package system
/*
#include <unistd.h>
*/
import "C"
func GetClockTicks() int {
return int(C.sysconf(C._SC_CLK_TCK))
}

@ -0,0 +1,15 @@
// +build !cgo windows
package system
func GetClockTicks() int {
// TODO figure out a better alternative for platforms where we're missing cgo
//
// TODO Windows. This could be implemented using Win32 QueryPerformanceFrequency().
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms644905(v=vs.85).aspx
//
// An example of its usage can be found here.
// https://msdn.microsoft.com/en-us/library/windows/desktop/dn553408(v=vs.85).aspx
return 100
}

@ -0,0 +1,99 @@
package system
import (
"syscall"
"unsafe"
)
var _zero uintptr
// Returns the size of xattrs and nil error
// Requires path, takes allocated []byte or nil as last argument
func Llistxattr(path string, dest []byte) (size int, err error) {
pathBytes, err := syscall.BytePtrFromString(path)
if err != nil {
return -1, err
}
var newpathBytes unsafe.Pointer
if len(dest) > 0 {
newpathBytes = unsafe.Pointer(&dest[0])
} else {
newpathBytes = unsafe.Pointer(&_zero)
}
_size, _, errno := syscall.Syscall6(syscall.SYS_LLISTXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(newpathBytes), uintptr(len(dest)), 0, 0, 0)
size = int(_size)
if errno != 0 {
return -1, errno
}
return size, nil
}
// Returns a []byte slice if the xattr is set and nil otherwise
// Requires path and its attribute as arguments
func Lgetxattr(path string, attr string) ([]byte, error) {
var sz int
pathBytes, err := syscall.BytePtrFromString(path)
if err != nil {
return nil, err
}
attrBytes, err := syscall.BytePtrFromString(attr)
if err != nil {
return nil, err
}
// Start with a 128 length byte array
sz = 128
dest := make([]byte, sz)
destBytes := unsafe.Pointer(&dest[0])
_sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
switch {
case errno == syscall.ENODATA:
return nil, errno
case errno == syscall.ENOTSUP:
return nil, errno
case errno == syscall.ERANGE:
// 128 byte array might just not be good enough,
// A dummy buffer is used ``uintptr(0)`` to get real size
// of the xattrs on disk
_sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(unsafe.Pointer(nil)), uintptr(0), 0, 0)
sz = int(_sz)
if sz < 0 {
return nil, errno
}
dest = make([]byte, sz)
destBytes := unsafe.Pointer(&dest[0])
_sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
if errno != 0 {
return nil, errno
}
case errno != 0:
return nil, errno
}
sz = int(_sz)
return dest[:sz], nil
}
func Lsetxattr(path string, attr string, data []byte, flags int) error {
pathBytes, err := syscall.BytePtrFromString(path)
if err != nil {
return err
}
attrBytes, err := syscall.BytePtrFromString(attr)
if err != nil {
return err
}
var dataBytes unsafe.Pointer
if len(data) > 0 {
dataBytes = unsafe.Pointer(&data[0])
} else {
dataBytes = unsafe.Pointer(&_zero)
}
_, _, errno := syscall.Syscall6(syscall.SYS_LSETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(dataBytes), uintptr(len(data)), uintptr(flags), 0)
if errno != 0 {
return errno
}
return nil
}

@ -0,0 +1,16 @@
# https://editorconfig.org
root = true
[*]
end_of_line = lf
insert_final_newline = true
trim_trailing_whitespace = true
charset = utf-8
indent_style = space
[Makefile]
indent_style = tab
[*.go]
indent_style = tab

@ -0,0 +1,2 @@
/ping
/dist

@ -0,0 +1,6 @@
---
issues:
exclude-rules:
- path: _test.go
linters:
- errcheck

@ -0,0 +1,46 @@
project_name: ping
before:
hooks:
- go mod download
builds:
- binary: ping
dir: cmd/ping
goarch:
- amd64
- arm
- arm64
goarm:
- 6
- 7
goos:
- darwin
- freebsd
- linux
- windows
archives:
- files:
- LICENSE
- README.md
format_overrides:
- goos: windows
format: zip
wrap_in_directory: true
# TODO: Decide if we want packages (name conflcits with /bin/ping?)
# nfpms:
# homepage: https://github.com/go-ping/ping
# maintainer: 'Go Ping Maintainers <go-ping@example.com>'
# description: Ping written in Go.
# license: MIT
# formats:
# - deb
# - rpm
checksum:
name_template: 'checksums.txt'
snapshot:
name_template: "{{ .Tag }}-{{ .ShortCommit }}"
changelog:
sort: asc
filters:
exclude:
- '^docs:'
- '^test:'

@ -0,0 +1,44 @@
# Contributing
First off, thanks for taking the time to contribute!
Remember that this is open source software so please consider the other people who will read your code.
Make it look nice for them, document your logic in comments and add or update the unit test cases.
This library is used by various other projects, companies and individuals in live production environments so please discuss any breaking changes with us before making them.
Feel free to join us in the #go-ping channel of the [Gophers Slack](https://invite.slack.golangbridge.org/).
## Pull Requests
[Fork the repo on GitHub](https://github.com/go-ping/ping/fork) and clone it to your local machine.
```bash
git clone https://github.com/YOUR_USERNAME/ping.git && cd ping
```
Here is a guide on [how to configure a remote repository](https://docs.github.com/en/free-pro-team@latest/github/collaborating-with-issues-and-pull-requests/configuring-a-remote-for-a-fork).
Check out a new branch, make changes, run tests, commit & sign-off, then push branch to your fork.
```bash
$ git checkout -b <BRANCH_NAME>
# edit files
$ make style vet test
$ git add <CHANGED_FILES>
$ git commit -s
$ git push <FORK> <BRANCH_NAME>
```
Open a [new pull request](https://github.com/go-ping/ping/compare) in the main `go-ping/ping` repository.
Please describe the purpose of your PR and remember link it to any related issues.
*We may ask you to rebase your feature branch or squash the commits in order to keep the history clean.*
## Development Guides
- Run `make style vet test` before committing your changes.
- Document your logic in code comments.
- Add tests for bug fixes and new features.
- Use UNIX-style (LF) line endings.
- End every file with a single blank line.
- Use the UTF-8 character set.

@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2016 Cameron Sparr and contributors.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

@ -0,0 +1,32 @@
GO ?= go
GOFMT ?= $(GO)fmt
GOOPTS ?=
GO111MODULE :=
pkgs = ./...
all: style vet build test
.PHONY: build
build:
@echo ">> building ping"
GO111MODULE=$(GO111MODULE) $(GO) build $(GOOPTS) ./cmd/ping
.PHONY: style
style:
@echo ">> checking code style"
@fmtRes=$$($(GOFMT) -d $$(find . -path ./vendor -prune -o -name '*.go' -print)); \
if [ -n "$${fmtRes}" ]; then \
echo "gofmt checking failed!"; echo "$${fmtRes}"; echo; \
echo "Please ensure you are using $$($(GO) version) for formatting code."; \
exit 1; \
fi
.PHONY: test
test:
@echo ">> running all tests"
GO111MODULE=$(GO111MODULE) $(GO) test -race -cover $(GOOPTS) $(pkgs)
.PHONY: vet
vet:
@echo ">> vetting code"
GO111MODULE=$(GO111MODULE) $(GO) vet $(GOOPTS) $(pkgs)

@ -0,0 +1,141 @@
# go-ping
[![PkgGoDev](https://pkg.go.dev/badge/github.com/go-ping/ping)](https://pkg.go.dev/github.com/go-ping/ping)
[![Circle CI](https://circleci.com/gh/go-ping/ping.svg?style=svg)](https://circleci.com/gh/go-ping/ping)
A simple but powerful ICMP echo (ping) library for Go, inspired by
[go-fastping](https://github.com/tatsushid/go-fastping).
Here is a very simple example that sends and receives three packets:
```go
pinger, err := ping.NewPinger("www.google.com")
if err != nil {
panic(err)
}
pinger.Count = 3
err = pinger.Run() // Blocks until finished.
if err != nil {
panic(err)
}
stats := pinger.Statistics() // get send/receive/duplicate/rtt stats
```
Here is an example that emulates the traditional UNIX ping command:
```go
pinger, err := ping.NewPinger("www.google.com")
if err != nil {
panic(err)
}
// Listen for Ctrl-C.
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
go func() {
for _ = range c {
pinger.Stop()
}
}()
pinger.OnRecv = func(pkt *ping.Packet) {
fmt.Printf("%d bytes from %s: icmp_seq=%d time=%v\n",
pkt.Nbytes, pkt.IPAddr, pkt.Seq, pkt.Rtt)
}
pinger.OnDuplicateRecv = func(pkt *ping.Packet) {
fmt.Printf("%d bytes from %s: icmp_seq=%d time=%v ttl=%v (DUP!)\n",
pkt.Nbytes, pkt.IPAddr, pkt.Seq, pkt.Rtt, pkt.Ttl)
}
pinger.OnFinish = func(stats *ping.Statistics) {
fmt.Printf("\n--- %s ping statistics ---\n", stats.Addr)
fmt.Printf("%d packets transmitted, %d packets received, %v%% packet loss\n",
stats.PacketsSent, stats.PacketsRecv, stats.PacketLoss)
fmt.Printf("round-trip min/avg/max/stddev = %v/%v/%v/%v\n",
stats.MinRtt, stats.AvgRtt, stats.MaxRtt, stats.StdDevRtt)
}
fmt.Printf("PING %s (%s):\n", pinger.Addr(), pinger.IPAddr())
err = pinger.Run()
if err != nil {
panic(err)
}
```
It sends ICMP Echo Request packet(s) and waits for an Echo Reply in
response. If it receives a response, it calls the `OnRecv` callback
unless a packet with that sequence number has already been received,
in which case it calls the `OnDuplicateRecv` callback. When it's
finished, it calls the `OnFinish` callback.
For a full ping example, see
[cmd/ping/ping.go](https://github.com/go-ping/ping/blob/master/cmd/ping/ping.go).
## Installation
```
go get -u github.com/go-ping/ping
```
To install the native Go ping executable:
```bash
go get -u github.com/go-ping/ping/...
$GOPATH/bin/ping
```
## Supported Operating Systems
### Linux
This library attempts to send an "unprivileged" ping via UDP. On Linux,