--- /dev/null
+/* 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.
+ */
+
+/**
+ * @file
+ * This file defines the vpp control-plane API messages
+ * used to control the Source VRF select (SVS) plugin
+ */
+
+option version = "1.0.0";
+import "vnet/ip/ip_types.api";
+
+/**
+ * brief Get the plugin version
+ * @param client_index - opaque cookie to identify the sender
+ *@param context - sender context, to match reply w/ request
+ */
+define svs_plugin_get_version
+{
+ u32 client_index;
+ u32 context;
+};
+
+/**
+ * @brief Reply to get the plugin version
+ * @param context - returned sender context, to match reply w/ request
+ * @param major - Incremented every time a known breaking behavior change is introduced
+ * @param minor - Incremented with small changes, may be used to avoid buggy versions
+ */
+define svs_plugin_get_version_reply
+{
+ u32 context;
+ u32 major;
+ u32 minor;
+};
+
+/**
+ * @brief Add a table in which to add routes that will match against source
+ * addresses
+ * @param client_index - opaque cookie to identify the sender
+ * @param context - sender context, to match reply w/ request
+ * @param af - Address Family
+ * @param table_id - User provided ID for the table
+ * @param is_add - add or delete
+ */
+autoreply define svs_table_add_del
+{
+ u32 client_index;
+ u32 context;
+ u8 is_add;
+ vl_api_address_family_t af;
+ u32 table_id;
+};
+
+/**
+ * @brief Add a route into the source address matching table
+ * @param client_index - opaque cookie to identify the sender
+ * @param context - sender context, to match reply w/ request
+ * @param prefix - prefix
+ * @param table_id - The SVS table (from svs_table_add_del)
+ * @param source_table_id - This is the table ID that will be used for
+ * the subsequent lookup of the packet. The V in SVS.
+ * this table must exist (from e.g. ip_table_add_del)
+ */
+autoreply define svs_route_add_del
+{
+ u32 client_index;
+ u32 context;
+ u8 is_add;
+ vl_api_prefix_t prefix;
+ u32 table_id;
+ u32 source_table_id;
+};
+
+/**
+ * @brief Enable SVS on a given interface by using the given table to match
+ * RX'd packets' source addresses
+ * @param client_index - opaque cookie to identify the sender
+ * @param context - sender context, to match reply w/ request
+ * @param af - Address Family
+ * @param table_id - The SVS table (from svs_table_add_del)
+ * @param sw_if_index - Interface
+ */
+autoreply define svs_enable_disable
+{
+ u32 client_index;
+ u32 context;
+ u8 is_enable;
+ vl_api_address_family_t af;
+ u32 table_id;
+ u32 sw_if_index;
+};
+
+/**
+ * @brief Dump the SVS table mappings of table_id to interface
+ * To see the routes added to a given table use ip_fib_dump()
+ */
+define svs_dump
+{
+ u32 client_index;
+ u32 context;
+};
+
+/**
+ * @brief SVS table-id to interface mapping
+ * @param context - sender context, to match reply w/ request
+ * @param af - Address Family
+ * @param table_id - The SVS table (from svs_table_add_del)
+ * @param sw_if_index - Interface
+ */
+define svs_details
+{
+ u32 context;
+ u32 table_id;
+ u32 sw_if_index;
+ vl_api_address_family_t af;
+};
+
--- /dev/null
+/*
+ * Copyright (c) 2018 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/svs/svs.h>
+
+#include <vlib/vlib.h>
+#include <vnet/plugin/plugin.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/fib/ip6_fib.h>
+#include <vnet/fib/ip4_fib.h>
+#include <vnet/dpo/lookup_dpo.h>
+#include <vnet/dpo/load_balance.h>
+#include <vnet/dpo/load_balance_map.h>
+
+u32 *svs_itf_db[FIB_PROTOCOL_IP_MAX];
+
+int
+svs_table_add (fib_protocol_t fproto, u32 table_id)
+{
+ fib_table_find_or_create_and_lock (fproto, table_id, FIB_SOURCE_PLUGIN_LOW);
+
+ return (0);
+}
+
+int
+svs_table_delete (fib_protocol_t fproto, u32 table_id)
+{
+ u32 fib_index;
+
+ fib_index = fib_table_find (fproto, table_id);
+
+ if (~0 == fib_index)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+
+ fib_table_unlock (fib_index, fproto, FIB_SOURCE_PLUGIN_LOW);
+
+ return (0);
+}
+
+static int
+svs_route_add_i (u32 fib_index, const fib_prefix_t * pfx, u32 src_fib_index)
+{
+ dpo_id_t dpo = DPO_INVALID;
+
+
+ lookup_dpo_add_or_lock_w_fib_index (src_fib_index,
+ fib_proto_to_dpo (pfx->fp_proto),
+ LOOKUP_UNICAST,
+ LOOKUP_INPUT_SRC_ADDR,
+ LOOKUP_TABLE_FROM_CONFIG, &dpo);
+
+ fib_table_entry_special_dpo_add (fib_index, pfx,
+ FIB_SOURCE_PLUGIN_LOW,
+ FIB_ENTRY_FLAG_EXCLUSIVE, &dpo);
+
+ dpo_unlock (&dpo);
+
+ return (0);
+}
+
+int
+svs_route_add (u32 table_id, const fib_prefix_t * pfx, u32 source_table_id)
+{
+ u32 fib_index, src_fib_index;
+ int rv;
+
+ fib_index = fib_table_find (pfx->fp_proto, table_id);
+
+ if (~0 == fib_index)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+
+ src_fib_index = fib_table_find (pfx->fp_proto, source_table_id);
+
+ if (~0 == src_fib_index)
+ return (VNET_API_ERROR_NO_SUCH_FIB);
+
+ rv = svs_route_add_i (fib_index, pfx, src_fib_index);
+
+ return (rv);
+}
+
+int
+svs_route_delete (u32 table_id, const fib_prefix_t * pfx)
+{
+ u32 fib_index;
+
+ fib_index = fib_table_find (pfx->fp_proto, table_id);
+
+ if (~0 == fib_index)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+
+ fib_table_entry_special_remove (fib_index, pfx, FIB_SOURCE_PLUGIN_LOW);
+
+ return (0);
+}
+
+int
+svs_enable (fib_protocol_t fproto, u32 table_id, u32 sw_if_index)
+{
+ fib_prefix_t pfx = {
+ .fp_proto = fproto,
+ };
+ u32 fib_index;
+
+ fib_index = fib_table_find (fproto, table_id);
+
+ if (~0 == fib_index)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+
+ /*
+ * now we know which interface the table will serve, we can add the default
+ * route to use the table that the interface is bound to.
+ */
+ svs_route_add_i (fib_index, &pfx,
+ fib_table_get_index_for_sw_if_index (fproto, sw_if_index));
+
+ vec_validate_init_empty (svs_itf_db[fproto], sw_if_index, ~0);
+
+ svs_itf_db[fproto][sw_if_index] = fib_index;
+
+ vnet_feature_enable_disable ((FIB_PROTOCOL_IP4 == fproto ?
+ "ip4-unicast" :
+ "ip6-unicast"),
+ (FIB_PROTOCOL_IP4 == fproto ?
+ "svs-ip4" :
+ "svs-ip6"), sw_if_index, 1, NULL, 0);
+
+ return (0);
+}
+
+static void
+svs_table_bind (fib_protocol_t fproto, u32 sw_if_index, u32 itf_fib_index)
+{
+ /*
+ * update the default route to use the interface's newly bound FIB
+ */
+ u32 svs_fib_index;
+
+ if (sw_if_index >= vec_len (svs_itf_db[FIB_PROTOCOL_IP6]))
+ return;
+
+ svs_fib_index = svs_itf_db[FIB_PROTOCOL_IP6][sw_if_index];
+
+ if (~0 != svs_fib_index)
+ {
+ fib_prefix_t pfx = {
+ .fp_proto = fproto,
+ };
+
+ svs_route_add (svs_fib_index, &pfx, itf_fib_index);
+ }
+ /*
+ * else
+ * no SVS enable on this interface
+ */
+}
+
+static void
+svs_ip6_table_bind (ip6_main_t * im,
+ uword opaque,
+ u32 sw_if_index, u32 new_fib_index, u32 old_fib_index)
+{
+ svs_table_bind (FIB_PROTOCOL_IP6, sw_if_index, new_fib_index);
+}
+
+static void
+svs_ip4_table_bind (ip4_main_t * im,
+ uword opaque,
+ u32 sw_if_index, u32 new_fib_index, u32 old_fib_index)
+{
+ svs_table_bind (FIB_PROTOCOL_IP4, sw_if_index, new_fib_index);
+}
+
+int
+svs_disable (fib_protocol_t fproto, u32 table_id, u32 sw_if_index)
+{
+ u32 fib_index;
+
+ fib_index = fib_table_find (fproto, table_id);
+
+ if (~0 == fib_index)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+
+ if (sw_if_index <= vec_len (svs_itf_db[fproto]))
+ return VNET_API_ERROR_INVALID_SW_IF_INDEX;
+
+ svs_itf_db[fproto][sw_if_index] = ~0;
+
+ vnet_feature_enable_disable ((FIB_PROTOCOL_IP4 == fproto ?
+ "ip4-unicast" :
+ "ip6-unicast"),
+ (FIB_PROTOCOL_IP4 == fproto ?
+ "svs-ip4" :
+ "svs-ip6"), sw_if_index, 0, NULL, 0);
+
+ return (0);
+}
+
+void
+svs_walk (svs_walk_fn_t fn, void *ctx)
+{
+ fib_protocol_t fproto;
+ u32 ii, fib_index;
+
+ FOR_EACH_FIB_IP_PROTOCOL (fproto)
+ {
+ vec_foreach_index (ii, svs_itf_db[fproto])
+ {
+ fib_index = svs_itf_db[fproto][ii];
+
+ if (~0 != fib_index)
+ {
+ if (WALK_CONTINUE != fn (fproto,
+ fib_table_get_table_id (fib_index, fproto),
+ ii, ctx))
+ return;
+ }
+ }
+ }
+}
+
+typedef enum svs_next_t_
+{
+ SVS_NEXT_DROP,
+ SVS_N_NEXT,
+} svs_next_t;
+
+typedef struct svs_input_trace_t_
+{
+ u32 fib_index;
+} svs_input_trace_t;
+
+always_inline uword
+svs_input_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame, fib_protocol_t fproto)
+{
+ u32 n_left_from, *from, *to_next, next_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ 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 > 0 && n_left_to_next > 0)
+ {
+ const load_balance_t *lb0;
+ const lookup_dpo_t *lk0;
+ u32 bi0, sw_if_index0;
+ const dpo_id_t *dpo0;
+ vlib_buffer_t *b0;
+ svs_next_t next0;
+ index_t lbi0;
+
+ 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);
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+
+ if (FIB_PROTOCOL_IP4 == fproto)
+ {
+ ip4_header_t *ip0;
+
+ ip0 = vlib_buffer_get_current (b0);
+ lbi0 =
+ ip4_fib_forwarding_lookup (svs_itf_db[fproto][sw_if_index0],
+ &ip0->src_address);
+ }
+ else
+ {
+ ip6_header_t *ip0;
+
+ ip0 = vlib_buffer_get_current (b0);
+ lbi0 = ip6_fib_table_fwding_lookup (&ip6_main,
+ svs_itf_db[fproto]
+ [sw_if_index0],
+ &ip0->src_address);
+ }
+ lb0 = load_balance_get (lbi0);
+ dpo0 = load_balance_get_fwd_bucket (lb0, 0);
+ lk0 = lookup_dpo_get (dpo0->dpoi_index);
+
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = lk0->lkd_fib_index;
+
+ vnet_feature_next (&next0, b0);
+
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ svs_input_trace_t *tr;
+
+ tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
+ tr->fib_index = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ }
+
+ /* 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);
+ }
+
+ return frame->n_vectors;
+}
+
+static uword
+svs_input_ip4 (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return svs_input_inline (vm, node, frame, FIB_PROTOCOL_IP4);
+}
+
+static uword
+svs_input_ip6 (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return svs_input_inline (vm, node, frame, FIB_PROTOCOL_IP6);
+}
+
+static u8 *
+format_svs_input_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 *);
+ svs_input_trace_t *t = va_arg (*args, svs_input_trace_t *);
+
+ s = format (s, " fib_index %d", t->fib_index);
+ return s;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (svs_ip4_node) =
+{
+ .function = svs_input_ip4,
+ .name = "svs-ip4",
+ .vector_size = sizeof (u32),
+ .format_trace = format_svs_input_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_next_nodes = SVS_N_NEXT,
+ .next_nodes =
+ {
+ [SVS_NEXT_DROP] = "error-drop",
+ }
+};
+
+VLIB_REGISTER_NODE (svs_ip6_node) =
+{
+ .function = svs_input_ip6,
+ .name = "svs-ip6",
+ .vector_size = sizeof (u32),
+ .format_trace = format_svs_input_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .next_nodes =
+ {
+ [SVS_NEXT_DROP] = "error-drop",
+ }
+};
+
+VNET_FEATURE_INIT (svs_ip4_feat, static) =
+{
+ .arc_name = "ip4-unicast",
+ .node_name = "svs-ip4",
+};
+
+VNET_FEATURE_INIT (svs_ip6_feat, static) =
+{
+ .arc_name = "ip6-unicast",
+ .node_name = "svs-ip6",
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+svs_table_cli (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ fib_protocol_t fproto;
+ u32 table_id;
+ u8 add;
+
+ fproto = FIB_PROTOCOL_IP4;
+ table_id = ~0;
+ add = 1;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "add"))
+ add = 1;
+ else if (unformat (input, "del"))
+ add = 0;
+ else if (unformat (input, "ip4"))
+ fproto = FIB_PROTOCOL_IP4;
+ else if (unformat (input, "ip6"))
+ fproto = FIB_PROTOCOL_IP6;
+ else if (unformat (input, "table-id %d", &table_id))
+ ;
+ else
+ break;
+ }
+
+ if (~0 == table_id)
+ return clib_error_return (0, "table-id must be specified");
+
+ if (add)
+ svs_table_add (fproto, table_id);
+ else
+ svs_table_delete (fproto, table_id);
+
+ return (NULL);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (svs_table_cmd_cli, static) = {
+ .path = "svs table",
+ .short_help = "Source VRF select table [add|delete] [ip4|ip6] table-id X",
+ .function = svs_table_cli,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+svs_enable_cli (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ u32 sw_if_index, table_id;
+ fib_protocol_t fproto;
+ vnet_main_t *vnm;
+ u8 enable;
+
+ vnm = vnet_get_main ();
+ sw_if_index = table_id = ~0;
+ fproto = FIB_PROTOCOL_IP4;
+ 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 if (unformat (input, "ip4"))
+ fproto = FIB_PROTOCOL_IP4;
+ else if (unformat (input, "ip6"))
+ fproto = FIB_PROTOCOL_IP6;
+ else if (unformat (input, "table-id %d", &table_id))
+ ;
+ else
+ break;
+ }
+
+ if (~0 == sw_if_index)
+ return clib_error_return (0, "interface must be specified");
+ if (~0 == table_id)
+ return clib_error_return (0, "table-id must be specified");
+
+ if (enable)
+ svs_enable (fproto, table_id, sw_if_index);
+ else
+ svs_disable (fproto, table_id, sw_if_index);
+
+ return (NULL);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (svs_enable_cli_cmd, static) = {
+ .path = "svs enable",
+ .short_help = "Source VRF select [enable|disable] [ip4|ip6] <table-id> X <interface>",
+ .function = svs_enable_cli,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+svs_route_cli (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ u32 table_id, src_table_id;
+ fib_prefix_t pfx;
+ int rv;
+ u8 add;
+
+ src_table_id = table_id = ~0;
+ add = 1;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "add"))
+ add = 1;
+ else if (unformat (input, "del"))
+ add = 0;
+ else if (unformat (input, "table-id %d", &table_id))
+ ;
+ else if (unformat (input, "src-table-id %d", &src_table_id))
+ ;
+ else if (unformat (input, "%U/%d",
+ unformat_ip4_address, &pfx.fp_addr.ip4, &pfx.fp_len))
+ {
+ pfx.fp_proto = FIB_PROTOCOL_IP4;
+ }
+ else if (unformat (input, "%U/%d",
+ unformat_ip6_address, &pfx.fp_addr.ip6, &pfx.fp_len))
+ {
+ pfx.fp_proto = FIB_PROTOCOL_IP6;
+ }
+ else
+ break;
+ }
+
+ if (~0 == table_id)
+ return clib_error_return (0, "table-id must be specified");
+ if (~0 == src_table_id)
+ return clib_error_return (0, "src-table-id must be specified");
+
+ if (add)
+ rv = svs_route_add (table_id, &pfx, src_table_id);
+ else
+ rv = svs_route_delete (table_id, &pfx);
+
+ if (rv != 0)
+ return clib_error_return (0,
+ "failed, rv=%d:%U",
+ (int) rv, format_vnet_api_errno, rv);
+
+ return (NULL);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (svs_route_cmd_cli, static) = {
+ .path = "svs route",
+ .short_help = "Source VRF select route [add|delete] <table-id> <prefix> <src-table-id>",
+ .function = svs_route_cli,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+svs_show_cli (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ fib_protocol_t fproto;
+ u32 ii;
+
+ vlib_cli_output (vm, "Source VRF select interface to fib-index mappings:");
+ FOR_EACH_FIB_IP_PROTOCOL (fproto)
+ {
+ vlib_cli_output (vm, " %U", format_fib_protocol, fproto);
+ vec_foreach_index (ii, svs_itf_db[fproto])
+ {
+ if (~0 != svs_itf_db[fproto][ii])
+ vlib_cli_output (vm, " %U -> %d", format_vnet_sw_if_index_name,
+ vnet_get_main (), ii, svs_itf_db[fproto][ii]);
+ }
+ }
+ return (NULL);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (svs_show_cli_cmd, static) = {
+ .path = "show svs",
+ .short_help = "Source VRF select show",
+ .function = svs_show_cli,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+svs_init (vlib_main_t * vm)
+{
+ ip6_table_bind_callback_t cbt6 = {
+ .function = svs_ip6_table_bind,
+ };
+ vec_add1 (ip6_main.table_bind_callbacks, cbt6);
+
+ ip4_table_bind_callback_t cbt4 = {
+ .function = svs_ip4_table_bind,
+ };
+ vec_add1 (ip4_main.table_bind_callbacks, cbt4);
+
+ return (NULL);
+}
+
+VLIB_INIT_FUNCTION (svs_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
--- /dev/null
+/*
+ * Copyright (c) 2018 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 <stddef.h>
+
+#include <vnet/vnet.h>
+#include <vnet/plugin/plugin.h>
+#include <svs/svs.h>
+#include <vnet/fib/fib_api.h>
+#include <vnet/ip/ip_types_api.h>
+
+#include <vpp/app/version.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+
+/* define message IDs */
+#include <svs/svs_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <svs/svs_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <svs/svs_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 <svs/svs_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <svs/svs_all_api_h.h>
+#undef vl_api_version
+
+/**
+ * Base message ID fot the plugin
+ */
+static u32 svs_base_msg_id;
+
+#include <vlibapi/api_helper_macros.h>
+
+/* List of message types that this plugin understands */
+
+#define foreach_svs_plugin_api_msg \
+ _(SVS_PLUGIN_GET_VERSION, svs_plugin_get_version) \
+ _(SVS_TABLE_ADD_DEL, svs_table_add_del) \
+ _(SVS_ROUTE_ADD_DEL, svs_route_add_del) \
+ _(SVS_ENABLE_DISABLE, svs_enable_disable) \
+ _(SVS_DUMP, svs_dump)
+
+static void
+vl_api_svs_plugin_get_version_t_handler (vl_api_svs_plugin_get_version_t * mp)
+{
+ vl_api_svs_plugin_get_version_reply_t *rmp;
+ int msg_size = sizeof (*rmp);
+ unix_shared_memory_queue_t *q;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ {
+ return;
+ }
+
+ rmp = vl_msg_api_alloc (msg_size);
+ memset (rmp, 0, msg_size);
+ rmp->_vl_msg_id =
+ ntohs (VL_API_SVS_PLUGIN_GET_VERSION_REPLY + svs_base_msg_id);
+ rmp->context = mp->context;
+ rmp->major = htonl (SVS_PLUGIN_VERSION_MAJOR);
+ rmp->minor = htonl (SVS_PLUGIN_VERSION_MINOR);
+
+ vl_msg_api_send_shmem (q, (u8 *) & rmp);
+}
+
+static void
+vl_api_svs_table_add_del_t_handler (vl_api_svs_table_add_del_t * mp)
+{
+ vl_api_svs_table_add_del_reply_t *rmp;
+ fib_protocol_t fproto;
+ int rv = 0;
+
+ fproto = fib_proto_from_api_address_family (mp->af);
+
+ if (mp->is_add)
+ {
+ svs_table_add (fproto, ntohl (mp->table_id));
+ }
+ else
+ {
+ svs_table_delete (fproto, ntohl (mp->table_id));
+ }
+
+ REPLY_MACRO (VL_API_SVS_TABLE_ADD_DEL_REPLY + svs_base_msg_id);
+}
+
+static void
+vl_api_svs_route_add_del_t_handler (vl_api_svs_route_add_del_t * mp)
+{
+ vl_api_svs_route_add_del_reply_t *rmp;
+ fib_prefix_t pfx;
+ int rv = 0;
+
+ ip_prefix_decode (&mp->prefix, &pfx);
+
+ if (mp->is_add)
+ {
+ rv =
+ svs_route_add (ntohl (mp->table_id), &pfx,
+ ntohl (mp->source_table_id));
+ }
+ else
+ {
+ rv = svs_route_delete (ntohl (mp->table_id), &pfx);
+ }
+
+ REPLY_MACRO (VL_API_SVS_ROUTE_ADD_DEL_REPLY + svs_base_msg_id);
+}
+
+static void
+vl_api_svs_enable_disable_t_handler (vl_api_svs_enable_disable_t * mp)
+{
+ vl_api_svs_enable_disable_reply_t *rmp;
+ fib_protocol_t fproto;
+ int rv = 0;
+
+ VALIDATE_SW_IF_INDEX (mp);
+
+ fproto = fib_proto_from_api_address_family (mp->af);
+
+ if (mp->is_enable)
+ {
+ svs_enable (fproto, ntohl (mp->table_id), ntohl (mp->sw_if_index));
+ }
+ else
+ {
+ svs_disable (fproto, ntohl (mp->table_id), ntohl (mp->sw_if_index));
+ }
+
+ BAD_SW_IF_INDEX_LABEL;
+ REPLY_MACRO (VL_API_SVS_ENABLE_DISABLE_REPLY + svs_base_msg_id);
+}
+
+typedef struct svs_dump_walk_ctx_t_
+{
+ unix_shared_memory_queue_t *q;
+ u32 context;
+} svs_dump_walk_ctx_t;
+
+
+static walk_rc_t
+svs_send_details (fib_protocol_t fproto,
+ u32 table_id, u32 sw_if_index, void *args)
+{
+ vl_api_svs_details_t *mp;
+ svs_dump_walk_ctx_t *ctx;
+
+ ctx = args;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_SVS_DETAILS + svs_base_msg_id);
+
+ mp->context = ctx->context;
+ mp->sw_if_index = htonl (sw_if_index);
+ mp->table_id = htonl (table_id);
+ mp->af = fib_proto_to_api_address_family (fproto);
+
+ vl_msg_api_send_shmem (ctx->q, (u8 *) & mp);
+
+ return (WALK_CONTINUE);
+}
+
+static void
+vl_api_svs_dump_t_handler (vl_api_svs_dump_t * mp)
+{
+ unix_shared_memory_queue_t *q;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ {
+ return;
+ }
+
+ svs_dump_walk_ctx_t ctx = {
+ .q = q,
+ .context = mp->context,
+ };
+
+ svs_walk (svs_send_details, &ctx);
+}
+
+#define vl_msg_name_crc_list
+#include <svs/svs_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+/* Set up the API message handling tables */
+static clib_error_t *
+svs_plugin_api_hookup (vlib_main_t * vm)
+{
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + svs_base_msg_id), \
+ #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_svs_plugin_api_msg;
+#undef _
+
+ return 0;
+}
+
+static void
+setup_message_id_table (api_main_t * apim)
+{
+#define _(id,n,crc) \
+ vl_msg_api_add_msg_name_crc (apim, #n "_" #crc, id + svs_base_msg_id);
+ foreach_vl_msg_name_crc_svs;
+#undef _
+}
+
+static clib_error_t *
+svs_api_init (vlib_main_t * vm)
+{
+ clib_error_t *error = 0;
+
+ u8 *name = format (0, "svs_%08x%c", api_version, 0);
+
+ /* Ask for a correctly-sized block of API message decode slots */
+ svs_base_msg_id = vl_msg_api_get_msg_ids ((char *) name,
+ VL_MSG_FIRST_AVAILABLE);
+
+ error = svs_plugin_api_hookup (vm);
+
+ /* Add our API messages to the global name_crc hash table */
+ setup_message_id_table (&api_main);
+
+ vec_free (name);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (svs_api_init);
+
+/* *INDENT-OFF* */
+VLIB_PLUGIN_REGISTER () = {
+ .version = VPP_BUILD_VER,
+ .description = "Source VRF Select",
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / commitdiff