3daee3214d
* Wait for addresses to leave tentative state before setting routes * Enable forwarding correctly * Set up masquerading according to the active protocol
56 lines
1.3 KiB
Go
56 lines
1.3 KiB
Go
// Copyright 2017 CNI authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package testutils
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import (
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"bytes"
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"fmt"
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"os/exec"
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"strconv"
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"syscall"
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)
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// Ping shells out to the `ping` command. Returns nil if successful.
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func Ping(saddr, daddr string, isV6 bool, timeoutSec int) error {
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args := []string{
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"-c", "1",
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"-W", strconv.Itoa(timeoutSec),
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"-I", saddr,
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daddr,
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}
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bin := "ping"
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if isV6 {
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bin = "ping6"
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}
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cmd := exec.Command(bin, args...)
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var stderr bytes.Buffer
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cmd.Stderr = &stderr
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if err := cmd.Run(); err != nil {
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switch e := err.(type) {
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case *exec.ExitError:
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return fmt.Errorf("%v exit status %d: %s",
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args, e.Sys().(syscall.WaitStatus).ExitStatus(),
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stderr.String())
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default:
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return err
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}
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}
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return nil
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}
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