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authorVadim Kochan <vadim4j@gmail.com>2017-01-23 23:49:22 +0200
committerTobias Klauser <tklauser@distanz.ch>2017-01-25 13:23:47 +0100
commit1e1383fea55fb35cec96a352da93c2a31d9e897c (patch)
tree1b93e0cbe4bcbe7893f0cb92073e5318d469d60c /bpf.vim
parent1df0f481922acfb5f7af0f3a5cb800ec0f77e48f (diff)
trafgen: l3: Fix checksum for UDP/TCP protos
While fixing the issue with getting of IPv4 address from device, the setting of default src IPv4/IPv6 addresses was moved from hdr->header_init(...) callback to hdr->packet_finish(...), but packet_finish(...) is called in the following order: udp_hdr->packet_finish() - UDP csum calculation over IPv4/6 pseudo header ip4_hdr->packet_finish() - setting default src IPv4 address from dev ... So src IPv4/6 address will be set after UDP/TCP csum calculation which is wrong, so fixed issue by moving it to the hdr->header_init(...) stage as it was before the c4e07d5142c8. Fixes: c4e07d5142c8 ("trafgen: l3: Support interface without IP address") Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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