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authorNeale Ranns <nranns@cisco.com>2020-10-05 12:26:47 +0000
committerDamjan Marion <dmarion@me.com>2020-10-08 06:11:07 +0000
commit21fb4f71ee3824c8f177045f21fea258ece602a9 (patch)
tree8ef415f172df0de141a11169cfbbd87072a0aa54 /src/vnet/pg/input.c
parent27c35e30569c3904e977e7f841b8bc56f16aeb9f (diff)
fib: Register multicast MAC with interface for accepting interfaces
Type: fix Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Ic6c76b65e2dcc08916373153944507a297c962c0
Diffstat (limited to 'src/vnet/pg/input.c')
-rw-r--r--src/vnet/pg/input.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/src/vnet/pg/input.c b/src/vnet/pg/input.c
index 785592f3618..60fc96e6faa 100644
--- a/src/vnet/pg/input.c
+++ b/src/vnet/pg/input.c
@@ -1823,6 +1823,124 @@ VLIB_REGISTER_NODE (pg_input_node) = {
};
/* *INDENT-ON* */
+VLIB_NODE_FN (pg_input_mac_filter) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
+ u16 nexts[VLIB_FRAME_SIZE], *next;
+ pg_main_t *pg = &pg_main;
+ u32 n_left, *from;
+
+ from = vlib_frame_vector_args (frame);
+ n_left = frame->n_vectors;
+ next = nexts;
+
+ clib_memset_u16 (next, 0, VLIB_FRAME_SIZE);
+
+ vlib_get_buffers (vm, from, bufs, n_left);
+
+ while (n_left)
+ {
+ const ethernet_header_t *eth;
+ pg_interface_t *pi;
+ mac_address_t in;
+
+ pi = pool_elt_at_index
+ (pg->interfaces,
+ pg->if_id_by_sw_if_index[vnet_buffer (b[0])->sw_if_index[VLIB_RX]]);
+ eth = vlib_buffer_get_current (b[0]);
+
+ mac_address_from_bytes (&in, eth->dst_address);
+
+ if (PREDICT_FALSE (ethernet_address_cast (in.bytes)))
+ {
+ mac_address_t *allowed;
+
+ if (0 != vec_len (pi->allowed_mcast_macs))
+ {
+ vec_foreach (allowed, pi->allowed_mcast_macs)
+ {
+ if (0 != mac_address_cmp (allowed, &in))
+ break;
+ }
+
+ if (vec_is_member (allowed, pi->allowed_mcast_macs))
+ vnet_feature_next_u16 (&next[0], b[0]);
+ }
+ }
+
+ b += 1;
+ next += 1;
+ n_left -= 1;
+ }
+
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
+
+ return (frame->n_vectors);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (pg_input_mac_filter) = {
+ .name = "pg-input-mac-filter",
+ .vector_size = sizeof (u32),
+ .format_trace = format_pg_input_trace,
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+VNET_FEATURE_INIT (pg_input_mac_filter_feat, static) = {
+ .arc_name = "device-input",
+ .node_name = "pg-input-mac-filter",
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+pg_input_mac_filter_cfg (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u32 sw_if_index = ~0;
+ int is_enable;
+
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "%U",
+ unformat_vnet_sw_interface,
+ vnet_get_main (), &sw_if_index))
+ ;
+ else if (unformat (line_input, "%U",
+ unformat_vlib_enable_disable, &is_enable))
+ ;
+ else
+ return clib_error_create ("unknown input `%U'",
+ format_unformat_error, line_input);
+ }
+ unformat_free (line_input);
+
+ if (~0 == sw_if_index)
+ return clib_error_create ("specify interface");
+
+ vnet_feature_enable_disable ("device-input",
+ "pg-input-mac-filter",
+ sw_if_index, is_enable, 0, 0);
+
+ return NULL;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (enable_streams_cli, static) = {
+ .path = "packet-generator mac-filter",
+ .short_help = "packet-generator mac-filter <INTERFACE> <on|off>",
+ .function = pg_input_mac_filter_cfg,
+};
+/* *INDENT-ON* */
+
+
/*
* fd.io coding-style-patch-verification: ON
*