34 lines
915 B
Go
34 lines
915 B
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package fingerprint
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import (
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"fmt"
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"os/exec"
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"strconv"
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"strings"
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)
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// linkSpeed returns link speed in Mb/s, or 0 when unable to determine it.
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func (f *NetworkFingerprint) linkSpeed(device string) int {
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command := fmt.Sprintf("Get-NetAdapter -Name '%s' -ErrorAction Ignore | Select-Object -ExpandProperty 'Speed'", device)
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path := "powershell.exe"
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powershellParams := "-NoProfile"
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outBytes, err := exec.Command(path, powershellParams, command).Output()
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if err != nil {
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f.logger.Warn("failed to detect link speed", "device", device, "path", path, "command", command, "error", err)
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return 0
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}
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output := strings.TrimSpace(string(outBytes))
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value, err := strconv.Atoi(output)
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if err != nil {
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f.logger.Warn("unable to parse Speed value", "device", device, "value", output, "error", err)
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return 0
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}
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return value / 1000000
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}
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