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91ed81f9ab
The GTP-tunnel driver is explicitly GGSN-side as it searches for PDP contexts based on the incoming packets _destination_ address. If we want to place ourselves on the SGSN side of the tunnel, then we want to be identifying PDP contexts based on _source_ address. Let it be noted that in a "real" configuration this module would never be used: the SGSN normally does not see IP packets as input. The justification for this functionality is for PGW load-testing applications where the input to the SGSN is locally generally IP traffic. This patch adds a "role" argument at GTP-link creation time to specify whether we are on the GGSN or SGSN side of the tunnel; this flag is then used to determine which part of the IP packet to use in determining the PDP context. Signed-off-by: Jonas Bonn <jonas@southpole.se> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Harald Welte <laforge@gnumonks.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| linux | ||
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| Kbuild | ||