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authorNeale Ranns <nranns@cisco.com>2020-02-03 10:55:09 +0000
committerDamjan Marion <dmarion@me.com>2020-02-04 09:44:58 +0000
commit03ce46219cd0fabfd4918822c5b9fed9ef880de8 (patch)
treef33c291dba25bcbe856602e6c63ce9d8ef4cc96c /src/vnet/teib
parent0860b2e19365c092f10dd1ce639caaded0e87ded (diff)
teib: Rename NHRP to TEIB
Type: refactor The Tunnel Endpoint Informatiob Base (TEIB) is a better description of what it is (a mapping between tunnel endpoint address, in the overlay, and next-hop address, in the underlay) whereas NHRP is one instanc eof a control protocol that might add such endpoints. Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Idcb2ad0b6543d3e5d9f6e96f9d14dafb5ce2aa85
Diffstat (limited to 'src/vnet/teib')
-rw-r--r--src/vnet/teib/teib.api57
-rw-r--r--src/vnet/teib/teib.c244
-rw-r--r--src/vnet/teib/teib.h85
-rw-r--r--src/vnet/teib/teib_api.c138
-rw-r--r--src/vnet/teib/teib_cli.c194
5 files changed, 718 insertions, 0 deletions
diff --git a/src/vnet/teib/teib.api b/src/vnet/teib/teib.api
new file mode 100644
index 00000000000..8e7320837b1
--- /dev/null
+++ b/src/vnet/teib/teib.api
@@ -0,0 +1,57 @@
+/* Hey Emacs use -*- mode: C -*- */
+/*
+ * 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.
+ */
+
+option version = "1.0.0";
+
+import "vnet/ip/ip_types.api";
+import "vnet/interface_types.api";
+
+/** \brief TEIB Entry
+ @param sw_if_index
+*/
+typedef teib_entry
+{
+ vl_api_interface_index_t sw_if_index;
+ vl_api_address_t peer;
+ vl_api_address_t nh;
+ u32 nh_table_id;
+};
+
+autoreply define teib_entry_add_del
+{
+ u32 client_index;
+ u32 context;
+ u8 is_add;
+ vl_api_teib_entry_t entry;
+};
+
+define teib_dump
+{
+ u32 client_index;
+ u32 context;
+};
+
+define teib_details
+{
+ u32 context;
+ vl_api_teib_entry_t entry;
+};
+
+/*
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/teib/teib.c b/src/vnet/teib/teib.c
new file mode 100644
index 00000000000..e392b49e86b
--- /dev/null
+++ b/src/vnet/teib/teib.c
@@ -0,0 +1,244 @@
+/*
+ * teib.h: next-hop resolution
+ *
+ * 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/teib/teib.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/adj/adj_midchain.h>
+
+typedef struct teib_key_t_
+{
+ ip46_address_t tk_peer;
+ u32 tk_sw_if_index;
+} teib_key_t;
+
+struct teib_entry_t_
+{
+ teib_key_t *te_key;
+ fib_prefix_t te_nh;
+ u32 te_fib_index;
+};
+
+static uword *teib_db;
+static teib_entry_t *teib_pool;
+static teib_vft_t *teib_vfts;
+
+#define TEIB_NOTIFY(_te, _fn) { \
+ teib_vft_t *_vft; \
+ vec_foreach(_vft, teib_vfts) { \
+ if (_vft->_fn) { \
+ _vft->_fn(_te); \
+ } \
+ } \
+}
+
+u32
+teib_entry_get_sw_if_index (const teib_entry_t * te)
+{
+ return (te->te_key->tk_sw_if_index);
+}
+
+u32
+teib_entry_get_fib_index (const teib_entry_t * te)
+{
+ return (te->te_fib_index);
+}
+
+const ip46_address_t *
+teib_entry_get_peer (const teib_entry_t * te)
+{
+ return (&te->te_key->tk_peer);
+}
+
+const fib_prefix_t *
+teib_entry_get_nh (const teib_entry_t * te)
+{
+ return (&te->te_nh);
+}
+
+void
+teib_entry_adj_stack (const teib_entry_t * te, adj_index_t ai)
+{
+ adj_midchain_delegate_stack (ai, te->te_fib_index, &te->te_nh);
+}
+
+teib_entry_t *
+teib_entry_get (index_t tei)
+{
+ return pool_elt_at_index (teib_pool, tei);
+}
+
+teib_entry_t *
+teib_entry_find (u32 sw_if_index, const ip46_address_t * peer)
+{
+ teib_key_t nk = {
+ .tk_peer = *peer,
+ .tk_sw_if_index = sw_if_index,
+ };
+ uword *p;
+
+ p = hash_get_mem (teib_db, &nk);
+
+ if (NULL != p)
+ return teib_entry_get (p[0]);
+
+ return (NULL);
+}
+
+int
+teib_entry_add (u32 sw_if_index,
+ const ip46_address_t * peer,
+ u32 nh_table_id, const ip46_address_t * nh)
+{
+ fib_protocol_t fproto;
+ teib_entry_t *te;
+ u32 fib_index;
+ index_t tei;
+
+ fproto = (ip46_address_is_ip4 (nh) ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6);
+
+ fib_index = fib_table_find (fproto, nh_table_id);
+
+ if (~0 == fib_index)
+ {
+ return (VNET_API_ERROR_NO_SUCH_FIB);
+ }
+
+ te = teib_entry_find (sw_if_index, peer);
+
+ if (NULL == te)
+ {
+ teib_key_t nk = {
+ .tk_peer = *peer,
+ .tk_sw_if_index = sw_if_index,
+ };
+ teib_entry_t *te;
+
+ pool_get_zero (teib_pool, te);
+
+ tei = te - teib_pool;
+ te->te_key = clib_mem_alloc (sizeof (*te->te_key));
+ clib_memcpy (te->te_key, &nk, sizeof (*te->te_key));
+
+ ip46_address_copy (&te->te_nh.fp_addr, nh);
+ te->te_nh.fp_proto = fproto;
+ te->te_nh.fp_len = (te->te_nh.fp_proto == FIB_PROTOCOL_IP4 ? 32 : 128);
+ te->te_fib_index = fib_index;
+
+ hash_set_mem (teib_db, te->te_key, tei);
+
+ TEIB_NOTIFY (te, nv_added);
+ }
+ else
+ return (VNET_API_ERROR_ENTRY_ALREADY_EXISTS);
+
+ return 0;
+}
+
+int
+teib_entry_del (u32 sw_if_index, const ip46_address_t * peer)
+{
+ teib_entry_t *te;
+
+ te = teib_entry_find (sw_if_index, peer);
+
+ if (te != NULL)
+ {
+ hash_unset_mem (teib_db, te->te_key);
+
+ TEIB_NOTIFY (te, nv_deleted);
+
+ clib_mem_free (te->te_key);
+ pool_put (teib_pool, te);
+ }
+ else
+ return (VNET_API_ERROR_ENTRY_ALREADY_EXISTS);
+
+ return 0;
+}
+
+u8 *
+format_teib_entry (u8 * s, va_list * args)
+{
+ index_t tei = va_arg (*args, index_t);
+ vnet_main_t *vnm = vnet_get_main ();
+ teib_entry_t *te;
+
+ te = teib_entry_get (tei);
+
+ s = format (s, "[%d] ", tei);
+ s = format (s, "%U:", format_vnet_sw_if_index_name,
+ vnm, te->te_key->tk_sw_if_index);
+ s = format (s, " %U", format_ip46_address,
+ &te->te_key->tk_peer, IP46_TYPE_ANY);
+ s = format (s, " via [%d]:%U",
+ fib_table_get_table_id (te->te_fib_index, te->te_nh.fp_proto),
+ format_fib_prefix, &te->te_nh);
+
+ return (s);
+}
+
+void
+teib_walk (teib_walk_cb_t fn, void *ctx)
+{
+ index_t tei;
+
+ /* *INDENT-OFF* */
+ pool_foreach_index(tei, teib_pool,
+ ({
+ fn(tei, ctx);
+ }));
+ /* *INDENT-ON* */
+}
+
+void
+teib_walk_itf (u32 sw_if_index, teib_walk_cb_t fn, void *ctx)
+{
+ index_t tei;
+
+ /* *INDENT-OFF* */
+ pool_foreach_index(tei, teib_pool,
+ ({
+ if (sw_if_index == teib_entry_get_sw_if_index(teib_entry_get(tei)))
+ fn(tei, ctx);
+ }));
+ /* *INDENT-ON* */
+}
+
+void
+teib_register (const teib_vft_t * vft)
+{
+ vec_add1 (teib_vfts, *vft);
+}
+
+static clib_error_t *
+teib_init (vlib_main_t * vm)
+{
+ teib_db = hash_create_mem (0, sizeof (teib_key_t), sizeof (u32));
+
+ return (NULL);
+}
+
+VLIB_INIT_FUNCTION (teib_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/teib/teib.h b/src/vnet/teib/teib.h
new file mode 100644
index 00000000000..4a03eee844f
--- /dev/null
+++ b/src/vnet/teib/teib.h
@@ -0,0 +1,85 @@
+/*
+ * teib.h: next-hop resolution
+ *
+ * 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 __TEIB_H__
+#define __TEIB_H__
+
+#include <vnet/ip/ip.h>
+
+/**
+ * Tunnel Endpoint Information Base.
+ *
+ * A TEIB entry represents the mapping between a peer on an interface in the overlay
+ * and a next-hop address in the underlay.
+ * i.e. there's a multipoint tunnel providing the overlay (henace a peer on
+ * that tunnel) which is reachable via 'tunnel destination' address in the
+ * underlay.
+ *
+ * Such overlay to underlay mappings might be providied by a protocol like NHRP
+ */
+typedef struct teib_entry_t_ teib_entry_t;
+
+/** accessors for the opaque struct */
+extern u32 teib_entry_get_sw_if_index (const teib_entry_t * ne);
+extern u32 teib_entry_get_fib_index (const teib_entry_t * ne);
+extern const ip46_address_t *teib_entry_get_peer (const teib_entry_t * ne);
+extern const fib_prefix_t *teib_entry_get_nh (const teib_entry_t * ne);
+extern u8 *format_teib_entry (u8 * s, va_list * args);
+
+/**
+ * Create a new TEIB entry
+ */
+extern int teib_entry_add (u32 sw_if_index,
+ const ip46_address_t * peer,
+ u32 nh_table_id, const ip46_address_t * nh);
+
+extern int teib_entry_del (u32 sw_if_index, const ip46_address_t * peer);
+
+extern teib_entry_t *teib_entry_find (u32 sw_if_index,
+ const ip46_address_t * peer);
+extern teib_entry_t *teib_entry_get (index_t nei);
+
+extern void teib_entry_adj_stack (const teib_entry_t * ne, adj_index_t ai);
+
+typedef walk_rc_t (*teib_walk_cb_t) (index_t nei, void *ctx);
+
+extern void teib_walk (teib_walk_cb_t fn, void *ctx);
+extern void teib_walk_itf (u32 sw_if_index, teib_walk_cb_t fn, void *ctx);
+
+/**
+ * Notifications for the creation and deletion of TEIB entries
+ */
+typedef void (*teib_entry_added_t) (const teib_entry_t * ne);
+typedef void (*teib_entry_deleted_t) (const teib_entry_t * ne);
+
+typedef struct teib_vft_t_
+{
+ teib_entry_added_t nv_added;
+ teib_entry_deleted_t nv_deleted;
+} teib_vft_t;
+
+extern void teib_register (const teib_vft_t * vft);
+
+#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/teib/teib_api.c b/src/vnet/teib/teib_api.c
new file mode 100644
index 00000000000..a51dd6d0f7f
--- /dev/null
+++ b/src/vnet/teib/teib_api.c
@@ -0,0 +1,138 @@
+/*
+ *------------------------------------------------------------------
+ * teib_api.c - teib 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 <vlibmemory/api.h>
+
+#include <vnet/api_errno.h>
+#include <vnet/teib/teib.h>
+#include <vnet/ip/ip_types_api.h>
+#include <vnet/fib/fib_table.h>
+
+/* define message IDs */
+#include <vnet/format_fns.h>
+#include <vnet/teib/teib.api_enum.h>
+#include <vnet/teib/teib.api_types.h>
+
+static u32 teib_base_msg_id;
+#define REPLY_MSG_ID_BASE teib_base_msg_id
+
+#include <vlibapi/api_helper_macros.h>
+
+static void
+vl_api_teib_entry_add_del_t_handler (vl_api_teib_entry_add_del_t * mp)
+{
+ vl_api_teib_entry_add_del_reply_t *rmp;
+ ip46_address_t peer, nh;
+ int rv;
+
+ VALIDATE_SW_IF_INDEX ((&mp->entry));
+
+ ip_address_decode (&mp->entry.peer, &peer);
+ ip_address_decode (&mp->entry.nh, &nh);
+
+ if (mp->is_add)
+ rv = teib_entry_add (ntohl (mp->entry.sw_if_index), &peer,
+ ntohl (mp->entry.nh_table_id), &nh);
+ else
+ rv = teib_entry_del (ntohl (mp->entry.sw_if_index), &peer);
+
+ BAD_SW_IF_INDEX_LABEL;
+
+ REPLY_MACRO (VL_API_TEIB_ENTRY_ADD_DEL_REPLY);
+}
+
+typedef struct vl_api_teib_send_t_
+{
+ vl_api_registration_t *reg;
+ u32 context;
+} vl_api_teib_send_t;
+
+static walk_rc_t
+vl_api_teib_send_one (index_t nei, void *arg)
+{
+ vl_api_teib_details_t *mp;
+ vl_api_teib_send_t *ctx = arg;
+ const teib_entry_t *ne;
+ const fib_prefix_t *pfx;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_TEIB_DETAILS + REPLY_MSG_ID_BASE);
+ mp->context = ctx->context;
+
+ ne = teib_entry_get (nei);
+ pfx = teib_entry_get_nh (ne);
+
+ ip_address_encode (teib_entry_get_peer (ne), IP46_TYPE_ANY,
+ &mp->entry.peer);
+ ip_address_encode (&pfx->fp_addr, IP46_TYPE_ANY, &mp->entry.nh);
+ mp->entry.nh_table_id =
+ htonl (fib_table_get_table_id
+ (teib_entry_get_fib_index (ne), pfx->fp_proto));
+ mp->entry.sw_if_index = htonl (teib_entry_get_sw_if_index (ne));
+
+ vl_api_send_msg (ctx->reg, (u8 *) mp);
+
+ return (WALK_CONTINUE);
+}
+
+static void
+vl_api_teib_dump_t_handler (vl_api_teib_dump_t * mp)
+{
+ vl_api_registration_t *reg;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ vl_api_teib_send_t ctx = {
+ .reg = reg,
+ .context = mp->context,
+ };
+
+ teib_walk (vl_api_teib_send_one, &ctx);
+}
+
+/*
+ * teib_api_hookup
+ * Add vpe's API message handlers to the table.
+ * vlib has already mapped shared memory and
+ * added the client registration handlers.
+ * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
+ */
+#include <vnet/teib/teib.api.c>
+
+static clib_error_t *
+teib_api_hookup (vlib_main_t * vm)
+{
+ teib_base_msg_id = setup_message_id_table ();
+
+ return (NULL);
+}
+
+VLIB_API_INIT_FUNCTION (teib_api_hookup);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/teib/teib_cli.c b/src/vnet/teib/teib_cli.c
new file mode 100644
index 00000000000..faf0d828963
--- /dev/null
+++ b/src/vnet/teib/teib_cli.c
@@ -0,0 +1,194 @@
+/*
+ * 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 <vnet/teib/teib.h>
+
+static clib_error_t *
+teib_add (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ ip46_address_t peer = ip46_address_initializer;
+ ip46_address_t nh = ip46_address_initializer;
+ u32 sw_if_index, nh_table_id;
+ clib_error_t *error = NULL;
+ int rv;
+
+ sw_if_index = ~0;
+ nh_table_id = 0;
+
+ /* Get a line of input. */
+ 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, "peer %U", unformat_ip46_address, &peer))
+ ;
+ else if (unformat (line_input, "nh %U", unformat_ip46_address, &nh))
+ ;
+ else if (unformat (line_input, "nh-table-id %d", &nh_table_id))
+ ;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (~0 == sw_if_index)
+ {
+ error = clib_error_return (0, "interface required'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ if (ip46_address_is_zero (&peer))
+ {
+ error = clib_error_return (0, "peer required'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ if (ip46_address_is_zero (&nh))
+ {
+ error = clib_error_return (0, "next-hop required'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+
+ rv = teib_entry_add (sw_if_index, &peer, nh_table_id, &nh);
+
+ if (rv)
+ {
+ error = clib_error_return_code (NULL, rv, 0,
+ "NRHP error",
+ format_unformat_error, line_input);
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (teib_create_command, static) = {
+ .path = "create teib",
+ .short_help = "create teib <interface> peer <addr> nh <addr> [nh-table-id <ID>]",
+ .function = teib_add,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+teib_del (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ ip46_address_t peer = ip46_address_initializer;
+ clib_error_t *error = NULL;
+ u32 sw_if_index;
+ int rv;
+
+ sw_if_index = ~0;
+
+ /* Get a line of input. */
+ 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, "peer %U", unformat_ip46_address, &peer))
+ ;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (~0 == sw_if_index)
+ {
+ error = clib_error_return (0, "interface required'",
+ format_unformat_error, line_input);
+ }
+ if (ip46_address_is_zero (&peer))
+ {
+ error = clib_error_return (0, "peer required'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+
+ rv = teib_entry_del (sw_if_index, &peer);
+
+ if (rv)
+ {
+ error = clib_error_return_code (NULL, rv, 0,
+ "NRHP error",
+ format_unformat_error, line_input);
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (teib_delete_command, static) = {
+ .path = "delete teib",
+ .short_help = "delete teib <interface> peer <addr>",
+ .function = teib_del,
+};
+/* *INDENT-ON* */
+
+static walk_rc_t
+teib_show_one (index_t nei, void *ctx)
+{
+ vlib_cli_output (ctx, "%U", format_teib_entry, nei);
+
+ return (WALK_CONTINUE);
+}
+
+
+static clib_error_t *
+teib_show (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ teib_walk (teib_show_one, vm);
+ return (NULL);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (teib_show_command, static) = {
+ .path = "show teib",
+ .short_help = "show teib",
+ .function = teib_show,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */