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Fixed ip_list_rcv probe is not exist in older linux kernel #130

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merged 1 commit into from
Jun 13, 2024
Merged

Fixed ip_list_rcv probe is not exist in older linux kernel #130

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1 change: 1 addition & 0 deletions CHANGES.md
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ Release Notes.
#### Bug Fixes
* Fixed the issue where `conntrack` could not find the Reply IP in the access log module.
* Fix errors when compiling C source files into eBPF bytecode on a system with Linux headers version 6.2 or higher.
* Fixed `ip_list_rcv` probe is not exist in older linux kernel.

#### Documentation

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4 changes: 2 additions & 2 deletions pkg/accesslog/collector/l24.go
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Expand Up @@ -45,13 +45,13 @@ func (c *L24Collector) startRead(_ *module.Manager, context *common.AccessLogCon
context.BPF.AddTracePoint("net", "netif_receive_skb", context.BPF.TracepointNetifReceiveSkb)

// l3
context.BPF.AddLink(link.Kprobe, map[string]*ebpf.Program{"ip_list_rcv": context.BPF.IpListRcv})
context.BPF.AddLink(link.Kretprobe, map[string]*ebpf.Program{"ip_list_rcv": context.BPF.IpListRcvRet})
context.BPF.AddLink(link.Kprobe, map[string]*ebpf.Program{"ip_rcv": context.BPF.IpRcv})
context.BPF.AddLink(link.Kretprobe, map[string]*ebpf.Program{"ip_rcv": context.BPF.IpRcvRet})
context.BPF.AddLink(link.Kprobe, map[string]*ebpf.Program{"ip_rcv_finish": context.BPF.IpRcvFinish})
context.BPF.AddLink(link.Kprobe, map[string]*ebpf.Program{"ip_local_deliver": context.BPF.IpLocalDeliver})
// it's not exist in old kernel versions
_ = context.BPF.AddLinkOrError(link.Kprobe, map[string]*ebpf.Program{"ip_list_rcv": context.BPF.IpListRcv})
_ = context.BPF.AddLinkOrError(link.Kretprobe, map[string]*ebpf.Program{"ip_list_rcv": context.BPF.IpListRcvRet})
_ = context.BPF.AddLinkOrError(link.Kprobe, map[string]*ebpf.Program{"ip_sublist_rcv_finish": context.BPF.IpSublistRcvFinish})
_ = context.BPF.AddLinkOrError(link.Kprobe, map[string]*ebpf.Program{"ip_local_deliver_finish": context.BPF.IpLocalDeliverFinish})

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