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https://github.com/jsimonetti/rtnetlink.git
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d21b2cb70d
* resolve GOOS dependency Signed-off-by: Lehner Florian <dev@der-flo.net> * exclude internal constants from linter Signed-off-by: Lehner Florian <dev@der-flo.net>
50 lines
930 B
Go
50 lines
930 B
Go
// +build
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package rtnetlink_test
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import (
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"log"
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"net"
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"github.com/jsimonetti/rtnetlink"
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"golang.org/x/sys/unix"
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)
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// Add a route
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func Example_addRoute() {
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// Gather the interface Index
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iface, _ := net.InterfaceByName("lo")
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// Get a route to add
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_, dst, _ := net.ParseCIDR("192.168.0.0/16")
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// Get a gw to use
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gw := net.ParseIP("127.0.0.1")
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// Dial a connection to the rtnetlink socket
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conn, err := rtnetlink.Dial(nil)
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if err != nil {
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log.Fatal(err)
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}
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defer conn.Close()
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attr := rtnetlink.RouteAttributes{
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Dst: dst.IP,
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OutIface: uint32(iface.Index),
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}
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if gw == nil {
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attr.Gateway = gw
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}
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ones, _ := dst.Mask.Size()
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err = conn.Route.Add(&rtnetlink.RouteMessage{
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Family: unix.AF_INET,
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Table: unix.RT_TABLE_MAIN,
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Protocol: unix.RTPROT_BOOT,
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Scope: unix.RT_SCOPE_LINK,
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Type: unix.RTN_UNICAST,
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DstLength: uint8(ones),
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Attributes: attr,
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})
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log.Fatal(err)
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}
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