Berkeley Packet Filter

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Berkeley Packet Filter

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JohannesPetzold
Contributor I

Hi,

I have some problem with filtering some packets using the setsockopt function.

Following Code doesn't work on an iMX6 platform:

struct sock_filter cams[] =
{

      BPF_STMT(BPF_RET + BPF_K, 0)

}

setsockopt(sockfd, SOL_SOCKET, SO_ATTACH_FILTER, &cams, sizeof(cams));

"Invalid argument" is returned as errno. Similiar Code can be found in libpcap where this seems to work. Any ideas?

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