netdev - [PATCH iproute2-next 7/8] bridge: fdb: support match on [no]router flag in flush command

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Date: Tue, 17 Oct 2023 10:02:26 +0300
From: Amit Cohen <amcohen@...dia.com>
To: <netdev@...r.kernel.org>
CC: <dsahern@...il.com>, <stephen@...workplumber.org>, <razor@...ckwall.org>,
	<mlxsw@...dia.com>, <roopa@...dia.com>, Amit Cohen <amcohen@...dia.com>
Subject: [PATCH iproute2-next 7/8] bridge: fdb: support match on [no]router flag in flush command

Extend "fdb flush" command to match entries with or without (if "no" is
prepended) router flag.

Examples:
$ bridge fdb flush dev vx10 router
This will delete all fdb entries pointing to vx10 with router flag.

$ bridge fdb flush dev vx10 norouter
This will delete all fdb entries pointing to vx10, except the ones with
router flag.

Signed-off-by: Amit Cohen <amcohen@...dia.com>
---
 bridge/fdb.c      | 8 +++++++-
 man/man8/bridge.8 | 9 ++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/bridge/fdb.c b/bridge/fdb.c
index 35100e68..ef0b3290 100644
--- a/bridge/fdb.c
+++ b/bridge/fdb.c
@@ -49,7 +49,7 @@ static void usage(void)
 		"              [ nhid NHID ] [ vni VNI ] [ port PORT ] [ dst IPADDR ] [ self ]\n"
 		"	       [ master ] [ [no]permanent | [no]static | [no]dynamic ]\n"
 		"              [ [no]added_by_user ] [ [no]extern_learn ] [ [no]sticky ]\n"
-		"              [ [no]offloaded ]\n");
+		"              [ [no]offloaded ] [ [no]router ]\n");
 	exit(-1);
 }
 
@@ -759,6 +759,12 @@ static int fdb_flush(int argc, char **argv)
 		} else if (strcmp(*argv, "nooffloaded") == 0) {
 			ndm_flags &= ~NTF_OFFLOADED;
 			ndm_flags_mask |= NTF_OFFLOADED;
+		} else if (strcmp(*argv, "router") == 0) {
+			ndm_flags |= NTF_ROUTER;
+			ndm_flags_mask |= NTF_ROUTER;
+		} else if (strcmp(*argv, "norouter") == 0) {
+			ndm_flags &= ~NTF_ROUTER;
+			ndm_flags_mask |= NTF_ROUTER;
 		} else if (strcmp(*argv, "brport") == 0) {
 			if (brport)
 				duparg2("brport", *argv);
diff --git a/man/man8/bridge.8 b/man/man8/bridge.8
index df440c33..f76bf96b 100644
--- a/man/man8/bridge.8
+++ b/man/man8/bridge.8
@@ -141,7 +141,7 @@ bridge \- show / manipulate bridge addresses and devices
 .BR self " ] [ " master " ] [ "
 .BR [no]permanent " | " [no]static " | " [no]dynamic " ] [ "
 .BR [no]added_by_user " ] [ " [no]extern_learn " ] [ "
-.BR [no]sticky " ] [ " [no]offloaded " ]"
+.BR [no]sticky " ] [ " [no]offloaded " ] [ " [no]router " ]"
 
 .ti -8
 .BR "bridge mdb" " { " add " | " del " | " replace " } "
@@ -980,6 +980,13 @@ if specified then only entries with offloaded flag will be deleted or respective
 if "no" is prepended then only entries without offloaded flag will be deleted.
 .sp
 
+.TP
+.B [no]router
+if specified then only entries with router flag will be deleted or respectively
+if "no" is prepended then only entries without router flag will be deleted. Valid
+if the referenced device is a VXLAN type device.
+.sp
+
 .SH bridge mdb - multicast group database management
 
 .B mdb
-- 
2.41.0