29 lines
666 B
Go
29 lines
666 B
Go
/* netcheck: check whether a given network or address overlaps with any existing routes */
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package main
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import (
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"net"
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weavenet "github.com/weaveworks/weave/net"
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)
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func netcheck(args []string) error {
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if len(args) < 1 {
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cmdUsage("netcheck", "<cidr> [<interface-to-ignore> ...]")
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}
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addr, ipnet, err := net.ParseCIDR(args[0])
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if err != nil {
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return err
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}
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ignoreIfaceNames := make(map[string]struct{})
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for _, ifName := range args[1:] {
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ignoreIfaceNames[ifName] = struct{}{}
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}
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if ipnet.IP.Equal(addr) {
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err = weavenet.CheckNetworkFree(ipnet, ignoreIfaceNames)
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} else {
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err = weavenet.CheckAddressOverlap(addr, ignoreIfaceNames)
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}
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return err
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}
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