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bridge: fdb: add support for src_vni option

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We already print src_vni for a fdb entry when present.
This patch adds the ability to set src_vni on a fdb
entry. When not specified, kernel will use vni specified
on the vxlan device. This can be used on a vxlan fdb entry
when the vxlan device is in external or collect metadata
mode.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
This commit is contained in:
Roopa Prabhu 2019-03-03 21:26:32 -08:00 committed by David Ahern
parent 83a8b8d9f1
commit c5b176e5ba
2 changed files with 19 additions and 0 deletions
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10
bridge/fdb.c
View File

@ -39,6 +39,7 @@ static void usage(void)
" [ self ] [ master ] [ use ] [ router ] [ extern_learn ]\n"
" [ sticky ] [ local | static | dynamic ] [ dst IPADDR ]\n"
" [ vlan VID ] [ port PORT] [ vni VNI ] [ via DEV ]\n"
" [ src_vni VNI ]\n"
" bridge fdb [ show [ br BRDEV ] [ brport DEV ] [ vlan VID ] [ state STATE ] ]\n");
exit(-1);
}
@ -383,6 +384,7 @@ static int fdb_modify(int cmd, int flags, int argc, char **argv)
inet_prefix dst;
unsigned long port = 0;
unsigned long vni = ~0;
unsigned long src_vni = ~0;
unsigned int via = 0;
char *endptr;
short vid = -1;
@ -416,6 +418,12 @@ static int fdb_modify(int cmd, int flags, int argc, char **argv)
if ((endptr && *endptr) ||
(vni >> 24) || vni == ULONG_MAX)
invarg("invalid VNI\n", *argv);
} else if (strcmp(*argv, "src_vni") == 0) {
NEXT_ARG();
src_vni = strtoul(*argv, &endptr, 0);
if ((endptr && *endptr) ||
(src_vni >> 24) || src_vni == ULONG_MAX)
invarg("invalid src VNI\n", *argv);
} else if (strcmp(*argv, "via") == 0) {
NEXT_ARG();
via = ll_name_to_index(*argv);
@ -495,6 +503,8 @@ static int fdb_modify(int cmd, int flags, int argc, char **argv)
}
if (vni != ~0)
addattr32(&req.n, sizeof(req), NDA_VNI, vni);
if (src_vni != ~0)
addattr32(&req.n, sizeof(req), NDA_SRC_VNI, src_vni);
if (via)
addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);

9
man/man8/bridge.8
View File

@ -69,6 +69,8 @@ bridge \- show / manipulate bridge addresses and devices
.BR self " ] [ " master " ] [ " router " ] [ " use " ] [ " extern_learn " ] [ " sticky " ] [ "
.B dst
.IR IPADDR " ] [ "
.B src_vni
.IR SRC_VNI " ] ["
.B vni
.IR VNI " ] ["
.B port
@ -473,6 +475,13 @@ is of type VXLAN.
the IP address of the destination
VXLAN tunnel endpoint where the Ethernet MAC ADDRESS resides.
.TP
.BI src_vni " SRC VNI"
the src VNI Network Identifier (or VXLAN Segment ID)
this entry belongs to. Used only when the vxlan device is in
external or collect metadata mode. If omitted the value specified at
vxlan device creation will be used.
.TP
.BI vni " VNI"
the VXLAN VNI Network Identifier (or VXLAN Segment ID)