diff options
author | Nikolay Aleksandrov <razor@blackwall.org> | 2022-06-08 15:29:15 +0300 |
---|---|---|
committer | David Ahern <dsahern@kernel.org> | 2022-06-10 09:01:33 -0600 |
commit | 988c319807508ba6de79f22e859edc50aaaad171 (patch) | |
tree | 8ee1ecd66484ec0463198abedb1cf2b1f0328882 | |
parent | bb9e453c14068c308f000cdcff98a4dd468358d5 (diff) | |
download | iproute2-988c319807508ba6de79f22e859edc50aaaad171.tar.gz |
bridge: fdb: add flush [no]permanent entry matching
Add flush support to match permanent or non-permanent entries if "no" is
prepended respectively.
Examples:
$ bridge fdb flush dev br0 permanent
This will delete all permanent entries in br0's fdb table.
$ bridge fdb flush dev br0 nopermanent
This will delete all entries except the permanent ones in br0's fdb
table.
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David Ahern <dsahern@kernel.org>
-rw-r--r-- | bridge/fdb.c | 14 | ||||
-rw-r--r-- | man/man8/bridge.8 | 11 |
2 files changed, 22 insertions, 3 deletions
diff --git a/bridge/fdb.c b/bridge/fdb.c index 4af13eb20..b1c516141 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 ]\n"); + " [ self ] [ master ] [ [no]permanent ]\n"); exit(-1); } @@ -680,8 +680,10 @@ static int fdb_flush(int argc, char **argv) .n.nlmsg_type = RTM_DELNEIGH, .ndm.ndm_family = PF_BRIDGE, }; + unsigned short ndm_state_mask = 0; short vid = -1, port_ifidx = -1; unsigned short ndm_flags = 0; + unsigned short ndm_state = 0; char *d = NULL, *port = NULL; while (argc > 0) { @@ -692,6 +694,12 @@ static int fdb_flush(int argc, char **argv) ndm_flags |= NTF_MASTER; } else if (strcmp(*argv, "self") == 0) { ndm_flags |= NTF_SELF; + } else if (strcmp(*argv, "permanent") == 0) { + ndm_state |= NUD_PERMANENT; + ndm_state_mask |= NUD_PERMANENT; + } else if (strcmp(*argv, "nopermanent") == 0) { + ndm_state &= ~NUD_PERMANENT; + ndm_state_mask |= NUD_PERMANENT; } else if (strcmp(*argv, "brport") == 0) { if (port) duparg2("brport", *argv); @@ -739,10 +747,14 @@ static int fdb_flush(int argc, char **argv) ndm_flags |= NTF_SELF; req.ndm.ndm_flags = ndm_flags; + req.ndm.ndm_state = ndm_state; if (port_ifidx > -1) addattr32(&req.n, sizeof(req), NDA_IFINDEX, port_ifidx); if (vid > -1) addattr16(&req.n, sizeof(req), NDA_VLAN, vid); + if (ndm_state_mask) + addattr16(&req.n, sizeof(req), NDA_NDM_STATE_MASK, + ndm_state_mask); if (rtnl_talk(&rth, &req.n, NULL) < 0) return -1; diff --git a/man/man8/bridge.8 b/man/man8/bridge.8 index 32b81b4bd..9dcd1f0a6 100644 --- a/man/man8/bridge.8 +++ b/man/man8/bridge.8 @@ -120,7 +120,8 @@ bridge \- show / manipulate bridge addresses and devices .IR DEV " ] [ " .B vlan .IR VID " ] [ " -.BR self " ] [ " master " ]" +.BR self " ] [ " master " ] [ " +.BR [no]permanent " ]" .ti -8 .BR "bridge mdb" " { " add " | " del " } " @@ -795,7 +796,8 @@ the bridge to which this address is associated. .SS bridge fdb flush - flush bridge forwarding table entries. -flush the matching bridge forwarding table entries. +flush the matching bridge forwarding table entries. Some options below have a negated +form when "no" is prepended to them (e.g. permanent and nopermanent). .TP .BI dev " DEV" @@ -826,6 +828,11 @@ command can also be used on the bridge device itself. The flag is set by default .B master if the specified network device is a port that belongs to a master device such as a bridge, the operation is fulfilled by the master device's driver. + +.TP +.B [no]permanent +if specified then only permanent entries will be deleted or respectively if "no" +is prepended then only non-permanent entries will be deleted. .sp .SH bridge mdb - multicast group database management |