{"record":{"id":"348eedd3e14e8a72","repo":"netbirdio/netbird","slug":"get-rules-from-nat-table-w","errorCode":null,"errorMessage":"get rules from nat table: %w","messagePattern":"get rules from nat table: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"client/firewall/nftables/router_linux.go","lineNumber":168,"sourceCode":"\n\treturn nberrors.FormatErrorOrNil(merr)\n}\n\nfunc (r *router) removeNatPreroutingRules() error {\n\ttable := &nftables.Table{\n\t\tName:   tableNat,\n\t\tFamily: r.af.tableFamily,\n\t}\n\tchain := &nftables.Chain{\n\t\tName:     chainNameNatPrerouting,\n\t\tTable:    table,\n\t\tHooknum:  nftables.ChainHookPrerouting,\n\t\tPriority: nftables.ChainPriorityNATDest,\n\t\tType:     nftables.ChainTypeNAT,\n\t}\n\trules, err := r.conn.GetRules(table, chain)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"get rules from nat table: %w\", err)\n\t}\n\n\tvar merr *multierror.Error\n\n\t// Delete rules that have our UserData suffix\n\tfor _, rule := range rules {\n\t\tif len(rule.UserData) == 0 || !strings.HasSuffix(string(rule.UserData), dnatSuffix) {\n\t\t\tcontinue\n\t\t}\n\t\tif err := r.conn.DelRule(rule); err != nil {\n\t\t\tmerr = multierror.Append(merr, fmt.Errorf(\"delete rule %s: %w\", rule.UserData, err))\n\t\t}\n\t}\n\n\tif err := r.conn.Flush(); err != nil {\n\t\tmerr = multierror.Append(merr, fmt.Errorf(flushError, err))\n\t}\n\treturn nberrors.FormatErrorOrNil(merr)","sourceCodeStart":150,"sourceCodeEnd":186,"githubUrl":"https://github.com/netbirdio/netbird/blob/93e97f4bf1ad715072dcb3fb6cdb1763431b5a9c/client/firewall/nftables/router_linux.go#L150-L186","documentation":"Error \"get rules from nat table: %w\" thrown in netbirdio/netbird.","triggerScenarios":"Thrown at client/firewall/nftables/router_linux.go:168 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"}