• Robert Shearman's avatar
    mpls: Enforce payload type of traffic sent using explicit NULL · 118d5234
    Robert Shearman authored
    RFC 4182 s2 states that if an IPv4 Explicit NULL label is the only
    label on the stack, then after popping the resulting packet must be
    treated as a IPv4 packet and forwarded based on the IPv4 header. The
    same is true for IPv6 Explicit NULL with an IPv6 packet following.
    
    Therefore, when installing the IPv4/IPv6 Explicit NULL label routes,
    add an attribute that specifies the expected payload type for use at
    forwarding time for determining the type of the encapsulated packet
    instead of inspecting the first nibble of the packet.
    Signed-off-by: default avatarRobert Shearman <rshearma@brocade.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    118d5234
af_mpls.c 28.8 KB