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    SubjectRe: linux/net/packet/af_packet.c and PF_PACKET/SOCK_PACKET
    Date
    Hello!

    > There is no difference between SOCK_DGRAM and SOCK_RAW in PF_PACKET.

    No, there is large difference between SOCK_RAW and SOCK_DGRAM
    for packet socket.

    SOCK_DGRAM sends/receive only network payload with
    MAC headers stripped/added in the kernel.

    SOCK_RAW tries to make best efforts to send/receive true raw data.

    Generally, 90% of our drivers are broken and do not give
    enough information (or give wrong information) to use SOCK_RAW unambiguously,
    so that SOCK_DGRAM should be used always when it is possible.

    Alexey

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