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ipnlocal: log failure to get ssh host keys

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When reporting ssh host keys to control, log a warning
if we're unable to get the SSH host keys.

Updates tailscale/escalations#21

Signed-off-by: Percy Wegmann <percy@tailscale.com>
This commit is contained in:
Percy Wegmann
2024-01-30 15:49:02 -06:00
committed by Percy Wegmann
parent 9744ad47e3
commit fad6bae764
3 changed files with 16 additions and 8 deletions
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ipn/ipnlocal/ssh.go
+9 -5
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@@ -210,12 +210,16 @@ func (b *LocalBackend) getSystemSSH_HostKeys() (ret map[string]ssh.Signer) {
return ret
}
func (b *LocalBackend) getSSHHostKeyPublicStrings() (ret []string) {
signers, _ := b.GetSSH_HostKeys()
for _, signer := range signers {
ret = append(ret, strings.TrimSpace(string(ssh.MarshalAuthorizedKey(signer.PublicKey()))))
func (b *LocalBackend) getSSHHostKeyPublicStrings() ([]string, error) {
signers, err := b.GetSSH_HostKeys()
if err != nil {
return nil, err
}
return ret
var keyStrings []string
for _, signer := range signers {
keyStrings = append(keyStrings, strings.TrimSpace(string(ssh.MarshalAuthorizedKey(signer.PublicKey()))))
}
return keyStrings, nil
}
// tailscaleSSHEnabled reports whether Tailscale SSH is currently enabled based