From 8198f75073ede4e486ed9496e195fc065f8af486 Mon Sep 17 00:00:00 2001 From: Nikolay Aleksandrov Date: Wed, 8 Jun 2022 15:29:17 +0300 Subject: [PATCH] bridge: fdb: add flush [no]dynamic entry matching Add flush support to match dynamic or non-dynamic (static or permanent) entries if "no" is prepended respectively. Note that dynamic entries are defined as fdbs without NUD_NOARP and NUD_PERMANENT set, and non-dynamic entries are fdbs with NUD_NOARP set (that matches both static and permanent entries). Examples: $ bridge fdb flush dev br0 dynamic This will delete all dynamic entries in br0's fdb table. $ bridge fdb flush dev br0 nodynamic This will delete all entries except the dynamic ones in br0's fdb table. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David Ahern --- bridge/fdb.c | 8 +++++++- man/man8/bridge.8 | 7 ++++++- 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/bridge/fdb.c b/bridge/fdb.c index 93806d7d..9c1899c1 100644 --- a/bridge/fdb.c +++ b/bridge/fdb.c @@ -46,7 +46,7 @@ static void usage(void) " bridge fdb get [ to ] LLADDR [ br BRDEV ] { brport | dev } DEV\n" " [ vlan VID ] [ vni VNI ] [ self ] [ master ] [ dynamic ]\n" " bridge fdb flush dev DEV [ brport DEV ] [ vlan VID ]\n" - " [ self ] [ master ] [ [no]permanent | [no]static ]\n"); + " [ self ] [ master ] [ [no]permanent | [no]static | [no]dynamic ]\n"); exit(-1); } @@ -706,6 +706,12 @@ static int fdb_flush(int argc, char **argv) } else if (strcmp(*argv, "nostatic") == 0) { ndm_state &= ~NUD_NOARP; ndm_state_mask |= NUD_NOARP; + } else if (strcmp(*argv, "dynamic") == 0) { + ndm_state &= ~NUD_NOARP | NUD_PERMANENT; + ndm_state_mask |= NUD_NOARP | NUD_PERMANENT; + } else if (strcmp(*argv, "nodynamic") == 0) { + ndm_state |= NUD_NOARP; + ndm_state_mask |= NUD_NOARP; } else if (strcmp(*argv, "brport") == 0) { if (port) duparg2("brport", *argv); diff --git a/man/man8/bridge.8 b/man/man8/bridge.8 index 9e2952b8..f4b3887a 100644 --- a/man/man8/bridge.8 +++ b/man/man8/bridge.8 @@ -121,7 +121,7 @@ bridge \- show / manipulate bridge addresses and devices .B vlan .IR VID " ] [ " .BR self " ] [ " master " ] [ " -.BR [no]permanent " | " [no]static " ]" +.BR [no]permanent " | " [no]static " | " [no]dynamic " ]" .ti -8 .BR "bridge mdb" " { " add " | " del " } " @@ -838,6 +838,11 @@ is prepended then only non-permanent entries will be deleted. .B [no]static if specified then only static entries will be deleted or respectively if "no" is prepended then only non-static entries will be deleted. + +.TP +.B [no]dynamic +if specified then only dynamic entries will be deleted or respectively if "no" +is prepended then only non-dynamic (static or permanent) entries will be deleted. .sp .SH bridge mdb - multicast group database management