--- /dev/null
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <plugins/gbp/gbp_vxlan.h>
+#include <plugins/gbp/gbp_itf.h>
+#include <plugins/gbp/gbp_learn.h>
+#include <plugins/gbp/gbp_bridge_domain.h>
+#include <plugins/gbp/gbp_route_domain.h>
+
+#include <vnet/vxlan-gbp/vxlan_gbp.h>
+#include <vlibmemory/api.h>
+#include <vnet/fib/fib_table.h>
+
+extern uword *gv_db;
+
+typedef struct gbp_vxlan_trace_t_
+{
+ u8 dropped;
+ u32 vni;
+ u32 sw_if_index;
+ u16 sclass;
+ u8 flags;
+} gbp_vxlan_trace_t;
+
+#define foreach_gbp_vxlan_input_next \
+ _(DROP, "error-drop") \
+ _(L2_INPUT, "l2-input") \
+ _(IP4_INPUT, "ip4-input") \
+ _(IP6_INPUT, "ip6-input")
+
+typedef enum
+{
+#define _(s,n) GBP_VXLAN_INPUT_NEXT_##s,
+ foreach_gbp_vxlan_input_next
+#undef _
+ GBP_VXLAN_INPUT_N_NEXT,
+} gbp_vxlan_input_next_t;
+
+
+#define foreach_gbp_vxlan_error \
+ _(DECAPPED, "decapped") \
+ _(LEARNED, "learned")
+
+typedef enum
+{
+#define _(s,n) GBP_VXLAN_ERROR_##s,
+ foreach_gbp_vxlan_error
+#undef _
+ GBP_VXLAN_N_ERROR,
+} gbp_vxlan_input_error_t;
+
+static char *gbp_vxlan_error_strings[] = {
+#define _(n,s) s,
+ foreach_gbp_vxlan_error
+#undef _
+};
+
+static uword
+gbp_vxlan_decap (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame, u8 is_ip4)
+{
+ u32 n_left_to_next, n_left_from, next_index, *to_next, *from;
+
+ next_index = 0;
+ from = vlib_frame_vector_args (from_frame);
+ n_left_from = from_frame->n_vectors;
+
+ while (n_left_from > 0)
+ {
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ vxlan_gbp_header_t *vxlan_gbp0;
+ gbp_vxlan_input_next_t next0;
+ gbp_vxlan_tunnel_t *gt0;
+ vlib_buffer_t *b0;
+ u32 bi0, vni0;
+ uword *p;
+
+ bi0 = to_next[0] = from[0];
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+ next0 = GBP_VXLAN_INPUT_NEXT_DROP;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ vxlan_gbp0 =
+ vlib_buffer_get_current (b0) - sizeof (vxlan_gbp_header_t);
+
+ vni0 = vxlan_gbp_get_vni (vxlan_gbp0);
+ p = hash_get (gv_db, vni0);
+
+ if (PREDICT_FALSE (NULL == p))
+ {
+ gt0 = NULL;
+ next0 = GBP_VXLAN_INPUT_NEXT_DROP;
+ }
+ else
+ {
+ gt0 = gbp_vxlan_tunnel_get (p[0]);
+
+ vnet_buffer (b0)->sw_if_index[VLIB_RX] = gt0->gt_sw_if_index;
+
+ if (GBP_VXLAN_TUN_L2 == gt0->gt_layer)
+ /*
+ * An L2 layer tunnel goes into the BD
+ */
+ next0 = GBP_VXLAN_INPUT_NEXT_L2_INPUT;
+ else
+ {
+ /*
+ * An L3 layer tunnel needs to strip the L2 header
+ * an inject into the RD
+ */
+ ethernet_header_t *e0;
+ u16 type0;
+
+ e0 = vlib_buffer_get_current (b0);
+ type0 = clib_net_to_host_u16 (e0->type);
+ switch (type0)
+ {
+ case ETHERNET_TYPE_IP4:
+ next0 = GBP_VXLAN_INPUT_NEXT_IP4_INPUT;
+ break;
+ case ETHERNET_TYPE_IP6:
+ next0 = GBP_VXLAN_INPUT_NEXT_IP6_INPUT;
+ break;
+ default:
+ goto trace;
+ }
+ vlib_buffer_advance (b0, sizeof (*e0));
+ }
+ }
+
+ trace:
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ gbp_vxlan_trace_t *tr;
+
+ tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
+ tr->dropped = (next0 == GBP_VXLAN_INPUT_NEXT_DROP);
+ tr->vni = vni0;
+ tr->sw_if_index = (gt0 ? gt0->gt_sw_if_index : ~0);
+ tr->flags = vxlan_gbp_get_gpflags (vxlan_gbp0);
+ tr->sclass = vxlan_gbp_get_sclass (vxlan_gbp0);
+ }
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return from_frame->n_vectors;
+}
+
+VLIB_NODE_FN (gbp_vxlan4_input_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
+{
+ return gbp_vxlan_decap (vm, node, from_frame, 1);
+}
+
+static u8 *
+format_gbp_vxlan_rx_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ gbp_vxlan_trace_t *t = va_arg (*args, gbp_vxlan_trace_t *);
+
+ s = format (s, "vni:%d dropped:%d rx:%d sclass:%d flags:%U",
+ t->vni, t->dropped, t->sw_if_index,
+ t->sclass, format_vxlan_gbp_header_gpflags, t->flags);
+
+ return (s);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (gbp_vxlan4_input_node) =
+{
+ .name = "gbp-vxlan4",
+ .vector_size = sizeof (u32),
+ .n_errors = GBP_VXLAN_N_ERROR,
+ .error_strings = gbp_vxlan_error_strings,
+ .n_next_nodes = GBP_VXLAN_INPUT_N_NEXT,
+ .format_trace = format_gbp_vxlan_rx_trace,
+ .next_nodes = {
+#define _(s,n) [GBP_VXLAN_INPUT_NEXT_##s] = n,
+ foreach_gbp_vxlan_input_next
+#undef _
+ },
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff