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ebfafa1561
Contribute a Wireshark plugin for decrypting and dissecting hashicorp/memberlist messages. And contribue a plugin for dissecting the NetworkDB messages transported as memberlist User messages. Add a feature to NetworkDB to log the encryption keys to a file for the Wireshark memberlist plugin to consume, configured using an environment variable. Signed-off-by: Cory Snider <csnider@mirantis.com>
46 lines
785 B
Go
46 lines
785 B
Go
package networkdb
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import (
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"context"
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"encoding/hex"
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"os"
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"github.com/containerd/log"
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)
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func logEncKeys(ctx context.Context, keys ...[]byte) {
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klpath := os.Getenv("NETWORKDBKEYLOGFILE")
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if klpath == "" {
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return
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}
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die := func(err error) {
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log.G(ctx).WithFields(log.Fields{
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"error": err,
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"path": klpath,
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}).Error("could not write to NetworkDB encryption-key log")
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}
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f, err := os.OpenFile(klpath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0600)
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if err != nil {
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die(err)
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return
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}
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defer func() {
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if err := f.Close(); err != nil {
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die(err)
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}
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}()
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tohex := hex.NewEncoder(f)
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for _, key := range keys {
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if _, err := tohex.Write(key); err != nil {
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die(err)
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return
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}
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if _, err := f.WriteString("\n"); err != nil {
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die(err)
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return
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}
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}
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}
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