xfrm: Add dir validation to "out" data path lookup

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Introduces validation for the x->dir attribute within the XFRM output
data lookup path. If the configured direction does not match the expected
direction, output, increment the XfrmOutStateDirError counter and drop
the packet to ensure data integrity and correct flow handling.

grep -vw 0 /proc/net/xfrm_stat
XfrmOutPolError         	1
XfrmOutStateDirError    	1

Signed-off-by: Antony Antony <antony.antony@secunet.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

...

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Antony Antony 2024-04-30 09:09:09 +02:00 • committed by Steffen Klassert

parent a4a87fa4e9

commit 601a0867f8

4 changed files with 11 additions and 0 deletions

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3

Documentation/networking/xfrm_proc.rst

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1

include/uapi/linux/snmp.h

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6

net/xfrm/xfrm_policy.c

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1

net/xfrm/xfrm_proc.c

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