From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Mon, 19 Mar 2018 17:20:10 +0000 (-0700)
Subject: bridge: add option extern_learn to set NTF_EXT_LEARNED on fdb entries
X-Git-Tag: v4.17.0~54
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b4f84bf8c9ac1a5d08437bad187c46d0793f50ea;p=thirdparty%2Fiproute2.git

bridge: add option extern_learn to set NTF_EXT_LEARNED on fdb entries

NTF_EXT_LEARNED can be set by a user on bridge fdb entry.
Provide a bridge command option to allow a user to set
NTF_EXT_LEARNED on a bridge fdb entry.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
---

diff --git a/bridge/fdb.c b/bridge/fdb.c
index 205b4faa9..4dbc894ce 100644
--- a/bridge/fdb.c
+++ b/bridge/fdb.c
@@ -36,7 +36,7 @@ static void usage(void)
 {
 	fprintf(stderr,
 		"Usage: bridge fdb { add | append | del | replace } ADDR dev DEV\n"
-		"              [ self ] [ master ] [ use ] [ router ]\n"
+		"              [ self ] [ master ] [ use ] [ router ] [ extern_learn ]\n"
 		"              [ local | static | dynamic ] [ dst IPADDR ] [ vlan VID ]\n"
 		"              [ port PORT] [ vni VNI ] [ via DEV ]\n"
 		"       bridge fdb [ show [ br BRDEV ] [ brport DEV ] [ vlan VID ] [ state STATE ] ]\n");
@@ -412,6 +412,8 @@ static int fdb_modify(int cmd, int flags, int argc, char **argv)
 			vid = atoi(*argv);
 		} else if (matches(*argv, "use") == 0) {
 			req.ndm.ndm_flags |= NTF_USE;
+		} else if (matches(*argv, "extern_learn") == 0) {
+			req.ndm.ndm_flags |= NTF_EXT_LEARNED;
 		} else {
 			if (strcmp(*argv, "to") == 0)
 				NEXT_ARG();
diff --git a/man/man8/bridge.8 b/man/man8/bridge.8
index 05512b029..e7f714831 100644
--- a/man/man8/bridge.8
+++ b/man/man8/bridge.8
@@ -61,7 +61,7 @@ bridge \- show / manipulate bridge addresses and devices
 .B dev
 .IR DEV " { "
 .BR local " | " static " | " dynamic " } [ "
-.BR self " ] [ " master " ] [ " router " ] [ " use " ] [ "
+.BR self " ] [ " master " ] [ " router " ] [ " use " ] [ " extern_learn " ] [ "
 .B dst
 .IR IPADDR " ] [ "
 .B vni
@@ -414,6 +414,12 @@ route shortcircuit enabled.
 indicate to the kernel that the fdb entry is in use.
 .sp
 
+.B extern_learn
+- this entry was learned externally. This option can be used to
+indicate to the kernel that an entry was hardware or user-space
+controller learnt dynamic entry. Kernel will not age such an entry.
+.sp
+
 .in -8
 The next command line parameters apply only
 when the specified device