bridge: fdb: add flush [no]extern_learn entry matching

Add flush support to match entries with or without (if "no" is
prepended) extern_learn flag.

Examples:
$ bridge fdb flush dev br0 extern_learn
This will delete all extern_learn entries in br0's fdb table.

$ bridge fdb flush dev br0 noextern_learn
This will delete all entries except the ones with extern_learn flag in
br0's fdb table.

Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David Ahern <dsahern@kernel.org>

diff --git a/bridge/fdb.c b/bridge/fdb.c
index c57ad235b401e161ffeb7403ce0f99a9b274f921..e64e21cb0cbaeaa8bb300b706480c8a69cf574f8 100644 (file)
--- a/bridge/fdb.c
+++ b/bridge/fdb.c
@@ -47,7 +47,7 @@ static void usage(void)
                "              [ vlan VID ] [ vni VNI ] [ self ] [ master ] [ dynamic ]\n"
                "       bridge fdb flush dev DEV [ brport DEV ] [ vlan VID ]\n"
                "              [ self ] [ master ] [ [no]permanent | [no]static | [no]dynamic ]\n"
-               "              [ [no]added_by_user ]\n");
+               "              [ [no]added_by_user ] [ [no]extern_learn ]\n");
        exit(-1);
 }
 
@@ -720,6 +720,12 @@ static int fdb_flush(int argc, char **argv)
                } else if (strcmp(*argv, "noadded_by_user") == 0) {
                        ndm_flags &= ~NTF_USE;
                        ndm_flags_mask |= NTF_USE;
+               } else if (strcmp(*argv, "extern_learn") == 0) {
+                       ndm_flags |= NTF_EXT_LEARNED;
+                       ndm_flags_mask |= NTF_EXT_LEARNED;
+               } else if (strcmp(*argv, "noextern_learn") == 0) {
+                       ndm_flags &= ~NTF_EXT_LEARNED;
+                       ndm_flags_mask |= NTF_EXT_LEARNED;
                } else if (strcmp(*argv, "brport") == 0) {
                        if (port)
                                duparg2("brport", *argv);

diff --git a/man/man8/bridge.8 b/man/man8/bridge.8
index b39c74823606be09e2bbd581df09fe1e193890d8..af343cc1a719e1ef4c51d09812f4540b1defe1c7 100644 (file)
--- a/man/man8/bridge.8
+++ b/man/man8/bridge.8
@@ -122,7 +122,7 @@ bridge \- show / manipulate bridge addresses and devices
 .IR VID " ] [ "
 .BR self " ] [ " master " ] [ "
 .BR [no]permanent " | " [no]static " | " [no]dynamic " ] [ "
-.BR [no]added_by_user " ]"
+.BR [no]added_by_user " ] [ " [no]extern_learn " ]"
 
 .ti -8
 .BR "bridge mdb" " { " add " | " del " } "
@@ -849,6 +849,11 @@ is prepended then only non-dynamic (static or permanent) entries will be deleted
 .B [no]added_by_user
 if specified then only entries with added_by_user flag will be deleted or respectively
 if "no" is prepended then only entries without added_by_user flag will be deleted.
+
+.TP
+.B [no]extern_learn
+if specified then only entries with extern_learn flag will be deleted or respectively
+if "no" is prepended then only entries without extern_learn flag will be deleted.
 .sp
 
 .SH bridge mdb - multicast group database management