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-rw-r--r--src/plugins/l2e/l2e.api38
-rw-r--r--src/plugins/l2e/l2e.c485
-rw-r--r--src/plugins/l2e/l2e.h41
-rw-r--r--src/plugins/l2e/l2e_all_api_h.h17
-rw-r--r--src/plugins/l2e/l2e_api.c162
-rw-r--r--src/plugins/l2e/l2e_msg_enum.h28
6 files changed, 771 insertions, 0 deletions
diff --git a/src/plugins/l2e/l2e.api b/src/plugins/l2e/l2e.api
new file mode 100644
index 00000000000..172ed48a22b
--- /dev/null
+++ b/src/plugins/l2e/l2e.api
@@ -0,0 +1,38 @@
+/* Hey Emacs use -*- mode: C -*- */
+/*
+ * Copyright (c) 2016 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.
+ */
+
+vl_api_version 1.0.0
+
+/** \brief L2 emulation at L3
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param sw_if_index - interface the operation is applied to
+ @param enable - Turn the service on or off
+*/
+autoreply define l2_emulation
+{
+ u32 client_index;
+ u32 context;
+ u32 sw_if_index;
+ u32 ip_table_id;
+ u8 enable;
+};
+
+/*
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/l2e/l2e.c b/src/plugins/l2e/l2e.c
new file mode 100644
index 00000000000..633d1f92838
--- /dev/null
+++ b/src/plugins/l2e/l2e.c
@@ -0,0 +1,485 @@
+/*
+ * l2_emulation.h : Extract L3 packets from the L2 input and feed
+ * them into the L3 path.
+ *
+ * Copyright (c) 2013 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/l2e/l2e.h>
+#include <vnet/l2/l2_input.h>
+
+/**
+ * Grouping of global data for the L2 emulation feature
+ */
+typedef struct l2_emulation_main_t_
+{
+ /**
+ * Next nodes for L2 output features
+ */
+ u32 l2_input_feat_next[32];
+} l2_emulation_main_t;
+
+static l2_emulation_main_t l2_emulation_main;
+
+/**
+ * Per-interface L2 configuration
+ */
+typedef struct l2_emulation_t_
+{
+ /**
+ * Enabled or Disabled.
+ * this is required since one L3 protocl can be enabled, but others not
+ */
+ u8 enabled;
+} l2_emulation_t;
+
+/**
+ * A zero'd out struct we can use in the vec_validate
+ */
+static const l2_emulation_t ezero = { };
+
+/**
+ * Per-interface vector of emulation configs
+ */
+l2_emulation_t *l2_emulations;
+
+void
+l2_emulation_enable (u32 sw_if_index)
+{
+ vec_validate_init_empty (l2_emulations, sw_if_index, ezero);
+
+ l2_emulation_t *l23e = &l2_emulations[sw_if_index];
+
+ l23e->enabled = 1;
+
+ /*
+ * L3 enable the interface - using IP unnumbered from the control
+ * plane may not be possible since there may be no BVI interface
+ * to which to unnumber
+ */
+ ip4_sw_interface_enable_disable (sw_if_index, 1);
+ ip6_sw_interface_enable_disable (sw_if_index, 1);
+
+ l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_L2_EMULATION, 1);
+}
+
+
+void
+l2_emulation_disable (u32 sw_if_index)
+{
+ if (vec_len (l2_emulations) >= sw_if_index)
+ {
+ l2_emulation_t *l23e = &l2_emulations[sw_if_index];
+ memset (l23e, 0, sizeof (*l23e));
+
+ l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_L2_EMULATION, 0);
+ ip4_sw_interface_enable_disable (sw_if_index, 0);
+ ip6_sw_interface_enable_disable (sw_if_index, 0);
+ }
+}
+
+static clib_error_t *
+l2_emulation_interface_add_del (vnet_main_t * vnm,
+ u32 sw_if_index, u32 is_add)
+{
+ if (is_add)
+ {
+ vec_validate_init_empty (l2_emulations, sw_if_index, ezero);
+ }
+
+ return (NULL);
+}
+
+VNET_SW_INTERFACE_ADD_DEL_FUNCTION (l2_emulation_interface_add_del);
+
+static clib_error_t *
+l2_emulation_cli (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 sw_if_index = ~0;
+ u8 enable = 1;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "%U", unformat_vnet_sw_interface,
+ vnm, &sw_if_index))
+ ;
+ else if (unformat (input, "enable"))
+ enable = 1;
+ else if (unformat (input, "disable"))
+ enable = 0;
+ else
+ break;
+ }
+
+ if (~0 == sw_if_index)
+ return clib_error_return (0, "interface must be specified");
+
+ if (enable)
+ l2_emulation_enable (sw_if_index);
+ else
+ l2_emulation_disable (sw_if_index);
+
+ return (NULL);
+}
+
+/*?
+ * Configure l2 emualtion.
+ * When the interface is in L2 mode, configure the extraction of L3
+ * packets out of the L2 path and into the L3 path.
+ *
+ * @cliexpar
+ * @cliexstart{set interface l2 input l2-emulation <interface-name> [disable]
+ * @cliexend
+ ?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (l2_emulation_cli_node, static) = {
+ .path = "set interface l2 l2-emulation",
+ .short_help =
+ "set interface l2 l2-emulation <interface-name> [disable|enable]\n",
+ .function = l2_emulation_cli,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+l2_emulation_show (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ l2_emulation_t *l23e;
+ u32 sw_if_index;
+
+ vec_foreach_index (sw_if_index, l2_emulations)
+ {
+ l23e = &l2_emulations[sw_if_index];
+ if (l23e->enabled)
+ {
+ vlib_cli_output (vm, "%U\n",
+ format_vnet_sw_if_index_name, vnm, sw_if_index);
+ }
+ }
+ return (NULL);
+}
+
+/*?
+ * Show l2 emulation.
+ * When the interface is in L2 mode, configure the extraction of L3
+ * packets out of the L2 path and into the L3 path.
+ *
+ * @cliexpar
+ * @cliexstart{show interface l2 l2-emulation
+ * @cliexend
+ ?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (l2_emulation_show_node, static) = {
+ .path = "show interface l2 l2-emulation",
+ .short_help = "show interface l2 l2-emulation\n",
+ .function = l2_emulation_show,
+};
+/* *INDENT-ON* */
+
+#define foreach_l2_emulation \
+ _(IP4, "Extract IPv4") \
+ _(IP6, "Extract IPv6")
+
+typedef enum
+{
+#define _(sym,str) L2_EMULATION_ERROR_##sym,
+ foreach_l2_emulation
+#undef _
+ L2_EMULATION_N_ERROR,
+} l2_emulation_error_t;
+
+static char *l2_emulation_error_strings[] = {
+#define _(sym,string) string,
+ foreach_l2_emulation
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) L2_EMULATION_NEXT_##sym,
+ foreach_l2_emulation
+#undef _
+ L2_EMULATION_N_NEXT,
+} l2_emulation_next_t;
+
+/**
+ * per-packet trace data
+ */
+typedef struct l2_emulation_trace_t_
+{
+ /* per-pkt trace data */
+ u8 extracted;
+} l2_emulation_trace_t;
+
+static uword
+l2_emulation_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ l2_emulation_main_t *em = &l2_emulation_main;
+ u32 n_left_from, *from, *to_next;
+ l2_emulation_next_t next_index;
+ u32 ip4_hits = 0;
+ u32 ip6_hits = 0;
+
+ next_index = 0;
+ n_left_from = frame->n_vectors;
+ from = vlib_frame_vector_args (frame);
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ vlib_buffer_t *b0, *b1;
+ u32 sw_if_index0, sw_if_index1;
+ u16 ether_type0, ether_type1;
+ u32 next0 = ~0, next1 = ~0;
+ u8 l2_len0, l2_len1;
+ u32 bi0, bi1;
+ u8 *h0, *h1;
+
+ bi0 = to_next[0] = from[0];
+ bi1 = to_next[1] = from[1];
+
+ from += 2;
+ n_left_from -= 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ b1 = vlib_get_buffer (vm, bi1);
+ l2_len0 = vnet_buffer (b0)->l2.l2_len;
+ l2_len1 = vnet_buffer (b1)->l2.l2_len;
+
+ h0 = vlib_buffer_get_current (b0);
+ h1 = vlib_buffer_get_current (b1);
+
+ ether_type0 = clib_net_to_host_u16 (*(u16 *) (h0 + l2_len0 - 2));
+ ether_type1 = clib_net_to_host_u16 (*(u16 *) (h1 + l2_len1 - 2));
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
+
+ /*
+ * only extract unicast
+ */
+ if (PREDICT_TRUE (!(h0[0] & 0x1)))
+ {
+ switch (ether_type0)
+ {
+ case ETHERNET_TYPE_IP4:
+ ASSERT (l2_emulations[sw_if_index0].enabled);
+ ++ip4_hits;
+ next0 = L2_EMULATION_NEXT_IP4;
+ vlib_buffer_advance (b0, l2_len0);
+ break;
+ case ETHERNET_TYPE_IP6:
+ ASSERT (l2_emulations[sw_if_index0].enabled);
+ ++ip6_hits;
+ next0 = L2_EMULATION_NEXT_IP6;
+ vlib_buffer_advance (b0, l2_len0);
+ default:
+ break;
+ }
+ }
+ if (PREDICT_TRUE (!(h1[0] & 0x1)))
+ {
+ switch (ether_type1)
+ {
+ case ETHERNET_TYPE_IP4:
+ ASSERT (l2_emulations[sw_if_index1].enabled);
+ ++ip4_hits;
+ next1 = L2_EMULATION_NEXT_IP4;
+ vlib_buffer_advance (b1, l2_len1);
+ break;
+ case ETHERNET_TYPE_IP6:
+ ASSERT (l2_emulations[sw_if_index1].enabled);
+ ++ip6_hits;
+ next1 = L2_EMULATION_NEXT_IP6;
+ vlib_buffer_advance (b1, l2_len1);
+ default:
+ break;
+ }
+ }
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2_emulation_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->extracted = (next0 != ~0);
+ }
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b1->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2_emulation_trace_t *t =
+ vlib_add_trace (vm, node, b1, sizeof (*t));
+ t->extracted = (next1 != ~0);
+ }
+
+ /* Determine the next node and remove ourself from bitmap */
+ if (PREDICT_TRUE (next0 == ~0))
+ next0 = vnet_l2_feature_next (b0, em->l2_input_feat_next,
+ L2INPUT_FEAT_L2_EMULATION);
+
+ /* Determine the next node and remove ourself from bitmap */
+ if (PREDICT_TRUE (next1 == ~0))
+ next1 = vnet_l2_feature_next (b1, em->l2_input_feat_next,
+ L2INPUT_FEAT_L2_EMULATION);
+
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, next0, next1);
+ }
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ vlib_buffer_t *b0;
+ u32 sw_if_index0;
+ u16 ether_type0;
+ u32 next0 = ~0;
+ u8 l2_len0;
+ u32 bi0;
+ u8 *h0;
+
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ l2_len0 = vnet_buffer (b0)->l2.l2_len;
+
+ h0 = vlib_buffer_get_current (b0);
+ ether_type0 = clib_net_to_host_u16 (*(u16 *) (h0 + l2_len0 - 2));
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+
+ /*
+ * only extract unicast
+ */
+ if (PREDICT_TRUE (!(h0[0] & 0x1)))
+ {
+ switch (ether_type0)
+ {
+ case ETHERNET_TYPE_IP4:
+ ASSERT (l2_emulations[sw_if_index0].enabled);
+ ++ip4_hits;
+ next0 = L2_EMULATION_NEXT_IP4;
+ vlib_buffer_advance (b0, l2_len0);
+ break;
+ case ETHERNET_TYPE_IP6:
+ ASSERT (l2_emulations[sw_if_index0].enabled);
+ ++ip6_hits;
+ next0 = L2_EMULATION_NEXT_IP6;
+ vlib_buffer_advance (b0, l2_len0);
+ default:
+ break;
+ }
+ }
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2_emulation_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->extracted = (next0 != ~0);
+ }
+
+ /* Determine the next node and remove ourself from bitmap */
+ if (PREDICT_TRUE (next0 == ~0))
+ next0 = vnet_l2_feature_next (b0, em->l2_input_feat_next,
+ L2INPUT_FEAT_L2_EMULATION);
+
+ /* verify speculative enqueue, maybe switch current next frame */
+ 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);
+ }
+
+ vlib_node_increment_counter (vm, node->node_index,
+ L2_EMULATION_ERROR_IP4, ip4_hits);
+ vlib_node_increment_counter (vm, node->node_index,
+ L2_EMULATION_ERROR_IP6, ip6_hits);
+
+ return frame->n_vectors;
+}
+
+/* packet trace format function */
+static u8 *
+format_l2_emulation_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 *);
+ l2_emulation_trace_t *t = va_arg (*args, l2_emulation_trace_t *);
+
+ s = format (s, "l2-emulation: %s", (t->extracted ? "yes" : "no"));
+
+ return s;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (l2_emulation_node) = {
+ .function = l2_emulation_node_fn,
+ .name = "l2-emulation",
+ .vector_size = sizeof (u32),
+ .format_trace = format_l2_emulation_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(l2_emulation_error_strings),
+ .error_strings = l2_emulation_error_strings,
+
+ .n_next_nodes = L2_EMULATION_N_NEXT,
+
+ /* edit / add dispositions here */
+ .next_nodes = {
+ [L2_EMULATION_NEXT_IP4] = "ip4-input",
+ [L2_EMULATION_NEXT_IP6] = "ip6-input",
+ },
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FUNCTION_MULTIARCH (l2_emulation_node, l2_emulation_node_fn);
+
+
+static clib_error_t *
+l2_emulation_init (vlib_main_t * vm)
+{
+ l2_emulation_main_t *em = &l2_emulation_main;
+
+ /* Initialize the feature next-node indexes */
+ feat_bitmap_init_next_nodes (vm,
+ l2_emulation_node.index,
+ L2INPUT_N_FEAT,
+ l2input_get_feat_names (),
+ em->l2_input_feat_next);
+
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (l2_emulation_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/l2e/l2e.h b/src/plugins/l2e/l2e.h
new file mode 100644
index 00000000000..954950149f9
--- /dev/null
+++ b/src/plugins/l2e/l2e.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2013 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.
+ */
+
+#ifndef included_vnet_l2_emulation_h
+#define included_vnet_l2_emulation_h
+
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+
+/**
+ * L2 Emulation is a feautre that is applied to L2 ports to 'extract'
+ * IP packets from the L2 path and inject them into the L3 path (i.e.
+ * into the appropriate ip[4|6]_input node).
+ * L3 routes in the table_id for that interface should then be configured
+ * as DVR routes, therefore the forwarded packet has the L2 header
+ * preserved and togehter the L3 routed system behaves like an L2 bridge.
+ */
+extern void l2_emulation_enable (u32 sw_if_index);
+extern void l2_emulation_disable (u32 sw_if_index);
+
+#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/l2e/l2e_all_api_h.h b/src/plugins/l2e/l2e_all_api_h.h
new file mode 100644
index 00000000000..44fad6bf64e
--- /dev/null
+++ b/src/plugins/l2e/l2e_all_api_h.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2016 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 the generated file, see BUILT_SOURCES in Makefile.am */
+#include <l2e/l2e.api.h>
+
diff --git a/src/plugins/l2e/l2e_api.c b/src/plugins/l2e/l2e_api.c
new file mode 100644
index 00000000000..470427e8952
--- /dev/null
+++ b/src/plugins/l2e/l2e_api.c
@@ -0,0 +1,162 @@
+/*
+ *------------------------------------------------------------------
+ * l2e_api.c - layer 2 emulation api
+ *
+ * Copyright (c) 2016 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 <vnet/vnet.h>
+#include <vnet/plugin/plugin.h>
+
+#include <vnet/interface.h>
+#include <vnet/api_errno.h>
+#include <vpp/app/version.h>
+
+#include <l2e/l2e.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+
+/* define message IDs */
+#include <l2e/l2e_msg_enum.h>
+
+#define vl_typedefs /* define message structures */
+#include <l2e/l2e_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun /* define message structures */
+#include <l2e/l2e_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <l2e/l2e_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <acl/acl_all_api_h.h>
+#undef vl_api_version
+
+#include <vlibapi/api_helper_macros.h>
+
+#define foreach_l2e_api_msg \
+_(L2_EMULATION, l2_emulation)
+
+/**
+ * L2 Emulation Main
+ */
+typedef struct l2_emulation_main_t_
+{
+ u16 msg_id_base;
+} l2_emulation_main_t;
+
+static l2_emulation_main_t l2_emulation_main;
+
+#define L2E_MSG_BASE l2_emulation_main.msg_id_base
+
+static void
+vl_api_l2_emulation_t_handler (vl_api_l2_emulation_t * mp)
+{
+ vl_api_l2_emulation_reply_t *rmp;
+ int rv = 0;
+
+ VALIDATE_SW_IF_INDEX (mp);
+
+ u32 sw_if_index = ntohl (mp->sw_if_index);
+
+ if (mp->enable)
+ l2_emulation_enable (sw_if_index);
+ else
+ l2_emulation_disable (sw_if_index);
+
+ BAD_SW_IF_INDEX_LABEL;
+
+ REPLY_MACRO (VL_API_L2_EMULATION_REPLY + L2E_MSG_BASE);
+}
+
+/*
+ * l2_api_hookup
+ * Add vpe's API message handlers to the table.
+ * vlib has alread mapped shared memory and
+ * added the client registration handlers.
+ * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
+ */
+#define vl_msg_name_crc_list
+#include <l2e/l2e_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (api_main_t * am)
+{
+#define _(id,n,crc) \
+ vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + L2E_MSG_BASE);
+ foreach_vl_msg_name_crc_l2e;
+#undef _
+}
+
+static void
+l2e_api_hookup (vlib_main_t * vm)
+{
+#define _(N,n) \
+ vl_msg_api_set_handlers(VL_API_##N + L2E_MSG_BASE, \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_l2e_api_msg;
+#undef _
+}
+
+static clib_error_t *
+l2e_init (vlib_main_t * vm)
+{
+ api_main_t *am = &api_main;
+ l2_emulation_main_t *l2em = &l2_emulation_main;
+ u8 *name = format (0, "l2e_%08x%c", api_version, 0);
+
+ /* Ask for a correctly-sized block of API message decode slots */
+ l2em->msg_id_base = vl_msg_api_get_msg_ids ((char *) name,
+ VL_MSG_FIRST_AVAILABLE);
+
+ l2e_api_hookup (vm);
+
+ /* Add our API messages to the global name_crc hash table */
+ setup_message_id_table (am);
+
+ vec_free (name);
+ return (NULL);
+}
+
+VLIB_API_INIT_FUNCTION (l2e_init);
+
+/* *INDENT-OFF* */
+VLIB_PLUGIN_REGISTER () = {
+ .version = VPP_BUILD_VER,
+ .description = "L2 Emulation",
+};
+/* *INDENT-ON* */
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/l2e/l2e_msg_enum.h b/src/plugins/l2e/l2e_msg_enum.h
new file mode 100644
index 00000000000..85c8328c703
--- /dev/null
+++ b/src/plugins/l2e/l2e_msg_enum.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2016 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.
+ */
+#ifndef included_l2e_msg_enum_h
+#define included_l2e_msg_enum_h
+
+#include <vppinfra/byte_order.h>
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+#include <l2e/l2e_all_api_h.h>
+ /* We'll want to know how many messages IDs we need... */
+ VL_MSG_FIRST_AVAILABLE,
+} vl_msg_id_t;
+#undef vl_msg_id
+
+#endif