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Add some XDP examples #645

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diegobes opened this issue Apr 27, 2022 · 3 comments
Closed

Add some XDP examples #645

diegobes opened this issue Apr 27, 2022 · 3 comments
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good first issue Good for newcomers

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@diegobes
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There are several examples of different ebpf program types but none for XDP.
Can you please add an example of how to use link/program to attach, deatach, pin, unpin xdp programs and maps ?

Thanks
@diegobes diegobes added the bug Something isn't working label Apr 27, 2022
@diegobes diegobes changed the title XDP Examples will be usefull [Not a BUG] XDP Examples will be usefull Apr 27, 2022
@ti-mo ti-mo removed the bug Something isn't working label Apr 27, 2022
@ti-mo ti-mo changed the title [Not a BUG] XDP Examples will be usefull Add some XDP examples Apr 27, 2022
@Cyc1ing1313
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agree

@ti-mo ti-mo added the good first issue Good for newcomers label May 4, 2022
@ti-mo
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ti-mo commented May 4, 2022

We'll add an example for attaching XDP progs using the link package. We could add a fallback using netlink later on if the kernel doesn't support bpf_link, but let's start with a simple example.

@diegobes Pinning is already demonstrated in other examples, is there something specific that needs to be highlighted?

wedaly added a commit to wedaly/ebpf that referenced this issue Jun 10, 2022
@wedaly
examples: add example for XDP
18bfb72 
Add an example for attaching an eBPF program to a network
interface with XDP. The example program parses the IPv4
source address from packets (if available) and records
packet counts by IP address in an LRU hash map.

Issue: cilium#645

Signed-off-by: Will Daly <[email protected]>
@wedaly wedaly mentioned this issue Jun 10, 2022
Merged
wedaly added a commit to wedaly/ebpf that referenced this issue Jun 10, 2022
@wedaly
examples: add example for XDP
e12ebf5 
Add an example for attaching an eBPF program to a network
interface with XDP. The example program parses the IPv4
source address from packets (if available) and records
packet counts by IP address in an LRU hash map.

Issue: cilium#645

Signed-off-by: Will Daly <[email protected]>
@lobshunter lobshunter mentioned this issue Jun 13, 2022
Closed
wedaly added a commit to wedaly/ebpf that referenced this issue Jun 14, 2022
@wedaly
examples: add example for XDP
140e388 
Add an example for attaching an eBPF program to a network
interface with XDP. The example program parses the IPv4
source address from packets (if available) and records
packet counts by IP address in an LRU hash map.

Issue: cilium#645

Signed-off-by: Will Daly <[email protected]>
wedaly added a commit to wedaly/ebpf that referenced this issue Jun 14, 2022
@wedaly
examples: add example for XDP
3784642 
Add an example for attaching an eBPF program to a network
interface with XDP. The example program parses the IPv4
source address from packets (if available) and records
packet counts by IP address in an LRU hash map.

Issue: cilium#645

Signed-off-by: Will Daly <[email protected]>
wedaly added a commit to wedaly/ebpf that referenced this issue Jun 14, 2022
@wedaly
examples: add example for XDP
a16d7be 
Add an example for attaching an eBPF program to a network
interface with XDP. The example program parses the IPv4
source address from packets (if available) and records
packet counts by IP address in an LRU hash map.

Issue: cilium#645

Signed-off-by: Will Daly <[email protected]>
lmb pushed a commit that referenced this issue Jun 15, 2022
@wedaly @lmb
examples: add example for XDP
4bf78cd 
Add an example for attaching an eBPF program to a network
interface with XDP. The example program parses the IPv4
source address from packets (if available) and records
packet counts by IP address in an LRU hash map.

Issue: #645

Signed-off-by: Will Daly <[email protected]>
@lmb
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lmb commented Jun 15, 2022

We have an XDP link example thanks to @wedaly now.

@lmb lmb closed this as completed Jun 15, 2022
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@lmb @ti-mo @diegobes @Cyc1ing1313