iproute vxlan add support for fdb replace command

Submitted by Thomas Richter on July 30, 2013, 6:16 a.m.

Details

Message ID 1375165001-6776-1-git-send-email-tmricht@linux.vnet.ibm.com
State Accepted
Delegated to: stephen hemminger
Headers show

Commit Message

Thomas Richter July 30, 2013, 6:16 a.m.
Add support for the bridge fdb replace command to replace an
existing entry in the vxlan device driver forwarding data base.
The entry is identified with its unicast mac address and its
corresponding remote destination information is updated.

This is useful for virtual machine migration and replaces the
bridge fdb del and bridge fdb add commands.

It follows the same interface as ip neigh replace commands.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
---
 bridge/fdb.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

Comments

stephen hemminger Aug. 4, 2013, 6:57 p.m.
On Tue, 30 Jul 2013 08:16:41 +0200
Thomas Richter <tmricht@linux.vnet.ibm.com> wrote:

> Add support for the bridge fdb replace command to replace an
> existing entry in the vxlan device driver forwarding data base.
> The entry is identified with its unicast mac address and its
> corresponding remote destination information is updated.
> 
> This is useful for virtual machine migration and replaces the
> bridge fdb del and bridge fdb add commands.
> 
> It follows the same interface as ip neigh replace commands.
> 
> Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>

Applied to master for next release.
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diff --git a/bridge/fdb.c b/bridge/fdb.c
index 591fbbe..e2e53f1 100644
--- a/bridge/fdb.c
+++ b/bridge/fdb.c
@@ -30,7 +30,7 @@  int filter_index;
 
 static void usage(void)
 {
-	fprintf(stderr, "Usage: bridge fdb { add | append | del } ADDR dev DEV {self|master} [ temp ]\n"
+	fprintf(stderr, "Usage: bridge fdb { add | append | del | replace } ADDR dev DEV {self|master} [ temp ]\n"
 		        "              [router] [ dst IPADDR] [ vlan VID ]\n"
 		        "              [ port PORT] [ vni VNI ] [via DEV]\n");
 	fprintf(stderr, "       bridge fdb {show} [ dev DEV ]\n");
@@ -334,6 +334,8 @@  int do_fdb(int argc, char **argv)
 			return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
 		if (matches(*argv, "append") == 0)
 			return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_APPEND, argc-1, argv+1);
+		if (matches(*argv, "replace") == 0)
+			return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
 		if (matches(*argv, "delete") == 0)
 			return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
 		if (matches(*argv, "show") == 0 ||