• David Ahern's avatar
    net: ipv4: add second dif to inet socket lookups · 3fa6f616
    David Ahern authored
    Add a second device index, sdif, to inet socket lookups. sdif is the
    index for ingress devices enslaved to an l3mdev. It allows the lookups
    to consider the enslaved device as well as the L3 domain when searching
    for a socket.
    
    TCP moves the data in the cb. Prior to tcp_v4_rcv (e.g., early demux) the
    ingress index is obtained from IPCB using inet_sdif and after the cb move
    in  tcp_v4_rcv the tcp_v4_sdif helper is used.
    Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    3fa6f616