pktgen: fix UDP checksum computation

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[ Upstream commit 7744b5f369 ]

This patch fixes two issues in UDP checksum computation in pktgen.

First, the pseudo-header uses the source and destination IP
addresses. Currently, the ports are used for IPv4.

Second, the UDP checksum covers both header and data.  So we need to
generate the data earlier (move pktgen_finalize_skb up), and compute
the checksum for UDP header + data.

Fixes: c26bf4a513 ("pktgen: Add UDPCSUM flag to support UDP checksums")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

...

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Sabrina Dubroca 2015-02-04 23:08:50 +01:00 • committed by Sasha Levin

parent 5cd5724b91

commit 76936e5d2a

1 changed files with 8 additions and 8 deletions

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net/core/pktgen.c

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