| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package l2topology |
| 4 | |
| 5 | import ( |
| 6 | "strconv" |
| 7 | "strings" |
| 8 | ) |
| 9 | |
| 10 | func bridgePortObservationKey(port bridgePortRef) string { |
| 11 | base := bridgePortObservationBaseKey(port) |
| 12 | if base == "" { |
| 13 | return "" |
| 14 | } |
| 15 | return base + keySep + "vlan:" |
| 16 | } |
| 17 | |
| 18 | func bridgePortObservationVLANKey(port bridgePortRef) string { |
| 19 | base := bridgePortObservationBaseKey(port) |
| 20 | if base == "" { |
| 21 | return "" |
| 22 | } |
| 23 | return base + keySep + "vlan:" + strings.ToLower(strings.TrimSpace(port.vlanID)) |
| 24 | } |
| 25 | |
| 26 | func bridgePortObservationBaseKey(port bridgePortRef) string { |
| 27 | deviceID := strings.TrimSpace(port.deviceID) |
| 28 | if deviceID == "" { |
| 29 | return "" |
| 30 | } |
| 31 | if port.ifIndex > 0 { |
| 32 | return deviceID + keySep + "if:" + strconv.Itoa(port.ifIndex) |
| 33 | } |
| 34 | name := firstNonEmpty(port.ifName, port.bridgePort) |
| 35 | name = normalizeInterfaceNameForLookup(name) |
| 36 | if name == "" { |
| 37 | return "" |
| 38 | } |
| 39 | return deviceID + keySep + "name:" + name |
| 40 | } |
| 41 | |
| 42 | func addBridgePortObservationKeys(set map[string]struct{}, port bridgePortRef) { |
| 43 | if set == nil { |
| 44 | return |
| 45 | } |
| 46 | if key := bridgePortObservationKey(port); key != "" { |
| 47 | set[key] = struct{}{} |
| 48 | } |
| 49 | if key := bridgePortObservationVLANKey(port); key != "" { |
| 50 | set[key] = struct{}{} |
| 51 | } |
| 52 | } |