diff options
| author | Phil Sutter <phil@nwl.cc> | 2023-05-05 20:04:41 +0200 |
|---|---|---|
| committer | Phil Sutter <phil@nwl.cc> | 2023-08-11 15:56:38 +0200 |
| commit | 11c464ed015b52a28d90c63c69e10e5f7d4053d4 (patch) | |
| tree | 5c2d3bd5a627720284e609dd966ff94246847ac8 /iptables/iptables.8.in | |
| parent | ca709b5784c982de12d6eab361cfc9c900aec4c7 (diff) | |
Add --compat option to *tables-nft and *-nft-restore commands
The flag sets nft_handle::compat boolean, indicating a compatible rule
implementation is wanted. Users expecting their created rules to be
fetched from kernel by an older version of *tables-nft may use this to
avoid potential compatibility issues.
Changes since v1:
- Expect short option '-C' in {ip,ip6,eb}tables-nft-restore command line
parser
- Support -C/--compat in arptables-nft-restore, too
- Update man pages with the new flag
Signed-off-by: Phil Sutter <phil@nwl.cc>
Diffstat (limited to 'iptables/iptables.8.in')
| -rw-r--r-- | iptables/iptables.8.in | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/iptables/iptables.8.in b/iptables/iptables.8.in index ecaa5553..c0e92f27 100644 --- a/iptables/iptables.8.in +++ b/iptables/iptables.8.in @@ -397,6 +397,13 @@ corresponding to that rule's position in the chain. \fB\-\-modprobe=\fP\fIcommand\fP When adding or inserting rules into a chain, use \fIcommand\fP to load any necessary modules (targets, match extensions, etc). +.TP +\fB\-\-compat\fP +This flag is only relevant with \fBnft\fP-variants and ignored otherwise. If +set, rules will be created in a mostly compatible way, enabling older versions +of \fBiptables\-nft\fP to correctly parse the rules received from kernel. This +mode is only useful in very specific situations and will likely impact packet +filtering performance. .SH LOCK FILE iptables uses the \fI@XT_LOCK_NAME@\fP file to take an exclusive lock at |