Support L2 filters such as ARP #255
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@brb Please read the 1st commit's message, I'm not sure it's what we want. The 1st commit actually changes the meaning of I did it because I found it sometimes misleading, for example, For those who aren't fimiliar with skb, they may think the skb payload changes. It's even misleading for us when we're looking into an skb with encap and encryption, the len value reflects "wrong" indication. My commit changes its value to L3 len, reduces confusion, but also causes another confusion: for those who know how skb->len works in kernel, the unchanges len values look fishy. I'm not sure it's a good commit or not. Feel free to reject it if you don't think it's right. |
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Never mind, after a second thought I think it's a bad idea. Just dropped that change. |
* ,--------------------------- + head * / ,----------------- + data * / / ,----------- + tail * | | | , + end * | | | | * v v v v * ----------------------------------------------- * | headroom | data | tailroom | skb_shared_info | * ----------------------------------------------- According to above illustration of skb, data_end should be skb->head + skb->tail. Signed-off-by: Zhichuan Liang <[email protected]>
Signed-off-by: Zhichuan Liang <[email protected]>
Signed-off-by: Zhichuan Liang <[email protected]>
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Signed-off-by: Zhichuan Liang <[email protected]>
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brb
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Sep 25, 2023
| pcap_compile mode only works for a complete frame data. | ||
| */ | ||
| pcap := C.pcap_open_dead(C.DLT_RAW, MAXIMUM_SNAPLEN) | ||
| pcap := C.pcap_open_dead(C.DLT_EN10MB, MAXIMUM_SNAPLEN) |
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Nit: does the Go compiler optimize this statement? I.e., pcap := C.pcap_open_dead(C.DLT_EN10MB, MAXIMUM_SNAPLEN) is called only if l3=false?
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@jschwinger233 Hello, Can pwru display macAddr when package type is arp? |
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Fixes: #233
Signed-off-by: Zhichuan Liang [email protected]