Netfilter-Devel Archive on lore.kernel.org
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* [nft PATCH 1/2] doc: nft.8: Mention wildcard interface matching
@ 2020-02-06 11:38 Phil Sutter
  2020-02-06 11:38 ` [nft PATCH 2/2] scanner: Extend asteriskstring definition Phil Sutter
  0 siblings, 1 reply; 6+ messages in thread
From: Phil Sutter @ 2020-02-06 11:38 UTC (permalink / raw)
  To: Pablo Neira Ayuso; +Cc: netfilter-devel

Special meaning of asterisk in interface names wasn't described
anywhere.

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 doc/primary-expression.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/doc/primary-expression.txt b/doc/primary-expression.txt
index 94eccc20241a2..b15df015e5484 100644
--- a/doc/primary-expression.txt
+++ b/doc/primary-expression.txt
@@ -36,6 +36,13 @@ add such a rule, it will stop matching if the interface gets renamed and it
 will match again in case interface gets deleted and later a new interface
 with the same name is created.
 
+Like with iptables, wildcard matching on interface name prefixes is available for
+*iifname* and *oifname* matches by appending an asterisk (*) character. Note
+however that unlike iptables, nftables does not accept interface names
+consisting of the wildcard character only - users are supposed to just skip
+those always matching expressions. In order to match on literal asterisk
+character at end of interface name, one may escape it using backslash (\).
+
 .Meta expression types
 [options="header"]
 |==================
-- 
2.24.1


^ permalink raw reply	[flat|nested] 6+ messages in thread

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-- links below jump to the message on this page --
2020-02-06 11:38 [nft PATCH 1/2] doc: nft.8: Mention wildcard interface matching Phil Sutter
2020-02-06 11:38 ` [nft PATCH 2/2] scanner: Extend asteriskstring definition Phil Sutter
2020-02-07 17:31   ` Pablo Neira Ayuso
2020-02-07 17:59     ` Phil Sutter
2020-02-09 22:21       ` Pablo Neira Ayuso
2020-02-10 11:18         ` Phil Sutter

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