* [nft PATCH] doc: Document limitations of ipsec expression with xfrm_interface
@ 2022-06-23 15:49 Phil Sutter
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From: Phil Sutter @ 2022-06-23 15:49 UTC (permalink / raw)
To: Pablo Neira Ayuso; +Cc: netfilter-devel
Point at a possible solution to match IPsec info of locally generated
traffic routed to an xfrm-type interface.
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
doc/primary-expression.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/doc/primary-expression.txt b/doc/primary-expression.txt
index f97778b9762b5..4d6b0878b2529 100644
--- a/doc/primary-expression.txt
+++ b/doc/primary-expression.txt
@@ -428,6 +428,10 @@ Destination address of the tunnel|
ipv4_addr/ipv6_addr
|=================================
+*Note:* When using xfrm_interface, this expression is not useable in output
+hook as the plain packet does not traverse it with IPsec info attached - use a
+chain in postrouting hook instead.
+
NUMGEN EXPRESSION
~~~~~~~~~~~~~~~~~
--
2.34.1
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