Files
golib/network
nabbar f31950daef Package Logger:
- Rework logger
- Remove deprecated functions
- Split Logger to sub package (fields, level, config, ...)
- Optimize dependencies
- Rework Hookfile: fix error like FD still opened
- Rework Hooksyslog: use same model like Hookfile, use network/protocol instead of self lib
- Rework HookStd: use independent hook for std out & std err
- Fix std config make generic options for files & syslog
- Apply formatter to hook instead of main logger entry
- optimize code

Package ioutils:
- rework PathCheckCreate funct: optimize code & fix some error

Package Network:
- create sub package protocol for all network protocl use
- add encode function

Package httpcli:
- remove file network
- use package network/protocol instead of network file

Package archive:
- apply change following rework of logger

Package aws:
- apply change following rework of logger

Package cluster:
- apply change following rework of logger

Package cobra:
- apply change following rework of logger

Package Config Component:
- apply change following rework of logger to component log
- fix logger for monitoring
- fix component following fix of package request / monitoring

Package context:
- apply change following rework of logger

Package database:
- apply change following rework of logger

Package httpserver:
- apply change following rework of logger

Package ldap:
- apply change following rework of logger

Package monitor:
- apply change following rework of logger
- fix logger for monitoring
- fix minor bugs

Package nats:
- apply change following rework of logger

Package nutsdb:
- apply change following rework of logger

Package request:
- apply change following rework of logger
- fix minor bug
- fix missing logger for monitoring
- add one line for healthcheck (info or error)

Package router:
- apply change following rework of logger

Package static:
- apply change following rework of logger

Package status:
- apply change following rework of logger
- fix bug with mandatory component

Package viper:
- apply change following rework of logger

Other:
- bump dependencies
- github action workflow fix
2023-06-26 08:36:29 +02:00
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2023-06-26 08:36:29 +02:00
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2020-07-26 12:25:54 +02:00
2020-10-02 12:51:23 +02:00

Network package

This package is useful to retrieve network interface information and counter.

The information available are :

  • name of the interface (cannot be empty)
  • physical address (or hardware address) (can be empty for example virtual ip or bridge)
  • MTU (Maximu Transmission Unit) is the maximum size of packets could be transmit
  • Addr is the list of all network address (can be empty)
  • Index is the index for the current interface into the list all interface for current os
  • Flags are capabilities supported by the interface. You can find const for all flags available in golang/x/net package :
    • FlagUp: interface is up
    • FlagBroadcast: interface supports broadcast access capability
    • FlagLoopback: interface is a loopback interface
    • FlagPointToPoint: interface belongs to a point-to-point link
    • FlagMulticast: interface supports multicast access capability

Example of implement

You can get all interface with filter.

In this example we will search all interface who's have physical address and having at least on address =and match the list of flags composed here with only FlagUp :

// GetAllInterfaces(context.Context, onlyPhysical, hasAddr bool, atLeastMTU int, withFlags ...net.Flags)
list, err := network.GetAllInterfaces(context.Background(), true, true, 0, net.FlagUp)

You can also retrieve on interface based on his name or his phyisical address :

//NewInterface(context.Context, name, physical string)
i, e := NewInterface(context.Context, "eth0", "") 

When you have you interface variable, you can use it to print for example the counter of received data.

The available statistics are grouped by way : In or Out In each group, the stats are :

  • StatBytes : Traffic in Bytes
  • StatPackets : Number of Packets
  • StatFifo : Number of packet in FIFO
  • StatDrop : Number of packet dropped
  • StatErr : Number of packet in Error

Stats are given as map[Stats]Number :

  • Stats is a self defined to map constant with a statement.
  • Number are still self defined type to allow formatting.
  • Bytes is closed similar to Number but with different unit

This translation between bytes and number included into each type :

  • Number.AsBytes
  • Bytes.AsNumber

You can also convert this type as uint64 or as float64.

Now, we have all information to understand this example who's print all stat of sending traffic with unit :

		fmt.Print("\tOut: \n")
 		l = i.GetStatOut()
 		for _, k := range network.ListStatsSort() {
 			s := network.Stats(k)
 			if v, ok := l[s]; ok {
 				fmt.Printf("\t\t%s\n", s.FormatLabelUnitPadded(v))
 			} else {
 				fmt.Printf("\t\t%s\n", s.FormatLabelUnitPadded(0))
 			}
 		}

Example

You can find an example in test/test-network

There result of this example is like this :

iface 'eth0' [00:15:5d:66:60:dd] :
        Flags: up broadcast multicast
        Addrs: {"addr":"172.25.59.95/20"} {"addr":"fe80::215:5dff:fe66:60dd/64"}
        In:
                Traffic:   27.33 GB
                Packets:   20 M
                Fifo:       0
                Drop:       0
                Error:      0
        Out:
                Traffic:   28.03 GB
                Packets: 1118 K
                Fifo:       0
                Drop:       0
                Error:      0