ipv4: Unmask upper DSCP bits in ip_send_unicast_reply()

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The function calls flowi4_init_output() to initialize an IPv4 flow key
with which it then performs a FIB lookup using ip_route_output_flow().

'arg->tos' with which the TOS value in the IPv4 flow key (flowi4_tos) is
initialized contains the full DS field. Unmask the upper DSCP bits so
that in the future the FIB lookup could be performed according to the
full DSCP value.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Ido Schimmel 2024-08-29 09:54:55 +03:00 • committed by David S. Miller

parent b261b2c6c1

commit 13f6538de2

1 changed files with 2 additions and 1 deletions

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net/ipv4/ip_output.c

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