net: add a couple of helpers for iph tot_len

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This patch adds three APIs to replace the iph->tot_len setting
and getting in all places where IPv4 BIG TCP packets may reach,
they will be used in the following patches.

Note that iph_totlen() will be used when iph is not in linear
data of the skb.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Xin Long 2023-01-28 10:58:30 -05:00 • committed by Jakub Kicinski

parent d8673afbf5

commit 058a8f7f73

2 changed files with 21 additions and 3 deletions

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21

include/linux/ip.h

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3

include/net/route.h

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