{"record":{"id":"ac6ecd72d84769c2","repo":"netbirdio/netbird","slug":"check-chain-exists-w","errorCode":null,"errorMessage":"check chain exists: %w","messagePattern":"check chain exists: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"client/firewall/iptables/manager_linux.go","lineNumber":625,"sourceCode":"\t\t\tlog.Debugf(\"delete output jump rule: %v\", delErr)\n\t\t}\n\t\tif delErr := m.ipv4Client.DeleteChain(tableRaw, chainNameRaw); delErr != nil {\n\t\t\tlog.Debugf(\"delete orphan chain: %v\", delErr)\n\t\t}\n\t\treturn fmt.Errorf(\"add prerouting jump rule: %w\", err)\n\t}\n\n\tm.rawSupported = true\n\treturn nil\n}\n\nfunc (m *Manager) cleanupNoTrackChain() error {\n\texists, err := m.ipv4Client.ChainExists(tableRaw, chainNameRaw)\n\tif err != nil {\n\t\tif !m.rawSupported {\n\t\t\treturn nil\n\t\t}\n\t\treturn fmt.Errorf(\"check chain exists: %w\", err)\n\t}\n\tif !exists {\n\t\treturn nil\n\t}\n\n\tjumpRule := []string{\"-j\", chainNameRaw}\n\n\tif err := m.ipv4Client.DeleteIfExists(tableRaw, chainOUTPUT, jumpRule...); err != nil {\n\t\treturn fmt.Errorf(\"remove output jump rule: %w\", err)\n\t}\n\n\tif err := m.ipv4Client.DeleteIfExists(tableRaw, chainPREROUTING, jumpRule...); err != nil {\n\t\treturn fmt.Errorf(\"remove prerouting jump rule: %w\", err)\n\t}\n\n\tif err := m.ipv4Client.ClearAndDeleteChain(tableRaw, chainNameRaw); err != nil {\n\t\treturn fmt.Errorf(\"clear and delete chain: %w\", err)\n\t}","sourceCodeStart":607,"sourceCodeEnd":643,"githubUrl":"https://github.com/netbirdio/netbird/blob/93e97f4bf1ad715072dcb3fb6cdb1763431b5a9c/client/firewall/iptables/manager_linux.go#L607-L643","documentation":"Error \"check chain exists: %w\" thrown in netbirdio/netbird.","triggerScenarios":"Thrown at client/firewall/iptables/manager_linux.go:625 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"93e97f4bf1ad715072dcb3fb6cdb1763431b5a9c","analyzedAt":"2026-08-16T03:09:19.136Z","schemaVersion":2},"datasetVersion":"2026-08-16T08:17:34.114Z"}