checker-ping/checker/rules_ipv6.go

77 lines
2.4 KiB
Go

// This file is part of the happyDomain (R) project.
// Copyright (c) 2020-2026 happyDomain
// Authors: Pierre-Olivier Mercier, et al.
//
// This program is offered under a commercial and under the AGPL license.
// For commercial licensing, contact us at <contact@happydomain.org>.
//
// For AGPL licensing:
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package checker
import (
"context"
sdk "git.happydns.org/checker-sdk-go/checker"
)
// ipv6ReachabilityRule verifies at least one IPv6 target replied to a probe.
// The rule is skipped (StatusUnknown) when no IPv6 target was pinged, which
// is expected for IPv4-only hosts.
type ipv6ReachabilityRule struct{}
func (r *ipv6ReachabilityRule) Name() string { return "ping.ipv6_reachable" }
func (r *ipv6ReachabilityRule) Description() string {
return "Verifies that at least one IPv6 target replied to an ICMP probe."
}
func (r *ipv6ReachabilityRule) Evaluate(ctx context.Context, obs sdk.ObservationGetter, _ sdk.CheckerOptions) []sdk.CheckState {
data, errSt := loadPingData(ctx, obs)
if errSt != nil {
return []sdk.CheckState{*errSt}
}
var ipv6Total, ipv6Reachable int
for _, t := range data.Targets {
if !isIPv6(t.Address) {
continue
}
ipv6Total++
if t.Received > 0 {
ipv6Reachable++
}
}
switch {
case ipv6Total == 0:
return []sdk.CheckState{{
Status: sdk.StatusUnknown,
Message: "No IPv6 target pinged.",
Code: "ping.ipv6_reachable.skipped",
}}
case ipv6Reachable == 0:
return []sdk.CheckState{{
Status: sdk.StatusWarn,
Message: "No IPv6 target replied to ICMP probes.",
Code: "ping.ipv6_reachable.unreachable",
}}
default:
return []sdk.CheckState{{
Status: sdk.StatusOK,
Message: "At least one IPv6 target is reachable.",
Code: "ping.ipv6_reachable.ok",
}}
}
}