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authorNeale Ranns <nranns@cisco.com>2020-09-21 08:17:51 +0000
committerDamjan Marion <dmarion@me.com>2020-09-22 16:01:29 +0000
commit2b202bc4b2d870d76bfe6fb1906ae62e253cec72 (patch)
treeb05011f96b8d9d080647323e4609af0fac90b612 /src/plugins/lisp/lisp-gpe/lisp_gpe.c
parentb468773aa4164bf52e0751fdf780f67248037cc0 (diff)
lisp: Move to plugin
Type: refactor Change-Id: I54df533a8f863c4e49742903cf2457f18b4fc506 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/plugins/lisp/lisp-gpe/lisp_gpe.c')
-rw-r--r--src/plugins/lisp/lisp-gpe/lisp_gpe.c728
1 files changed, 728 insertions, 0 deletions
diff --git a/src/plugins/lisp/lisp-gpe/lisp_gpe.c b/src/plugins/lisp/lisp-gpe/lisp_gpe.c
new file mode 100644
index 00000000000..1f087fd0625
--- /dev/null
+++ b/src/plugins/lisp/lisp-gpe/lisp_gpe.c
@@ -0,0 +1,728 @@
+/*
+ * 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
+ * @brief Common utility functions for IPv4, IPv6 and L2 LISP-GPE tunnels.
+ *
+ */
+
+#include <lisp/lisp-gpe/lisp_gpe.h>
+#include <lisp/lisp-gpe/lisp_gpe_fwd_entry.h>
+#include <lisp/lisp-gpe/lisp_gpe_adjacency.h>
+#include <lisp/lisp-gpe/lisp_gpe_tenant.h>
+#include <vnet/fib/fib_path_list.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/fib/fib_internal.h>
+
+/** LISP-GPE global state */
+lisp_gpe_main_t lisp_gpe_main;
+
+
+/** CLI command to add/del forwarding entry. */
+static clib_error_t *
+lisp_gpe_add_del_fwd_entry_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u8 is_add = 1;
+ ip_address_t lloc, rloc;
+ clib_error_t *error = 0;
+ gid_address_t _reid, *reid = &_reid, _leid, *leid = &_leid;
+ u8 reid_set = 0, leid_set = 0, is_negative = 0, dp_table_set = 0,
+ vni_set = 0;
+ u32 vni = 0, dp_table = 0, action = ~0, w;
+ locator_pair_t pair, *pairs = 0;
+ int rv;
+
+ clib_memset (leid, 0, sizeof (*leid));
+ clib_memset (reid, 0, sizeof (*reid));
+
+ /* 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, "del"))
+ is_add = 0;
+ else if (unformat (line_input, "add"))
+ is_add = 1;
+ else if (unformat (line_input, "leid %U", unformat_gid_address, leid))
+ {
+ leid_set = 1;
+ }
+ else if (unformat (line_input, "reid %U", unformat_gid_address, reid))
+ {
+ reid_set = 1;
+ }
+ else if (unformat (line_input, "vni %u", &vni))
+ {
+ gid_address_vni (leid) = vni;
+ gid_address_vni (reid) = vni;
+ vni_set = 1;
+ }
+ else if (unformat (line_input, "vrf %u", &dp_table))
+ {
+ dp_table_set = 1;
+ }
+ else if (unformat (line_input, "bd %u", &dp_table))
+ {
+ dp_table_set = 1;
+ }
+ else if (unformat (line_input, "negative action %U",
+ unformat_negative_mapping_action, &action))
+ {
+ is_negative = 1;
+ }
+ else if (unformat (line_input, "loc-pair %U %U w %d",
+ unformat_ip_address, &lloc,
+ unformat_ip_address, &rloc, &w))
+ {
+ ip_address_copy (&pair.lcl_loc, &lloc);
+ ip_address_copy (&pair.rmt_loc, &rloc);
+ pair.weight = w;
+ pair.priority = 0;
+ vec_add1 (pairs, pair);
+ }
+ else
+ {
+ error = unformat_parse_error (line_input);
+ vlib_cli_output (vm, "parse error: '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (!reid_set)
+ {
+ vlib_cli_output (vm, "remote eid must be set!");
+ goto done;
+ }
+
+ if (gid_address_type (reid) != GID_ADDR_NSH && (!vni_set || !dp_table_set))
+ {
+ vlib_cli_output (vm, "vni and vrf/bd must be set!");
+ goto done;
+ }
+
+ if (is_negative)
+ {
+ if (~0 == action)
+ {
+ vlib_cli_output (vm, "no action set for negative tunnel!");
+ goto done;
+ }
+ }
+ else
+ {
+ if (vec_len (pairs) == 0)
+ {
+ vlib_cli_output (vm, "expected ip4/ip6 locators");
+ goto done;
+ }
+ }
+
+ if (!leid_set)
+ {
+ /* if leid not set, make sure it's the same AFI like reid */
+ gid_address_type (leid) = gid_address_type (reid);
+ if (GID_ADDR_IP_PREFIX == gid_address_type (reid))
+ gid_address_ip_version (leid) = gid_address_ip_version (reid);
+ }
+
+ /* add fwd entry */
+ vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
+ clib_memset (a, 0, sizeof (a[0]));
+
+ a->is_add = is_add;
+ a->is_negative = is_negative;
+ a->vni = vni;
+ a->table_id = dp_table;
+ gid_address_copy (&a->lcl_eid, leid);
+ gid_address_copy (&a->rmt_eid, reid);
+ a->locator_pairs = pairs;
+ a->action = action;
+
+ rv = vnet_lisp_gpe_add_del_fwd_entry (a, 0);
+ if (0 != rv)
+ {
+ vlib_cli_output (vm, "failed to %s gpe tunnel!",
+ is_add ? "add" : "delete");
+ }
+
+done:
+ unformat_free (line_input);
+ vec_free (pairs);
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (lisp_gpe_add_del_fwd_entry_command, static) = {
+ .path = "gpe entry",
+ .short_help = "gpe entry add/del vni <vni> vrf/bd <id> [leid <leid>]"
+ "reid <reid> [loc-pair <lloc> <rloc> w <weight>] "
+ "[negative action <action>]",
+ .function = lisp_gpe_add_del_fwd_entry_command_fn,
+};
+/* *INDENT-ON* */
+
+/** Check if LISP-GPE is enabled. */
+u8
+vnet_lisp_gpe_enable_disable_status (void)
+{
+ lisp_gpe_main_t *lgm = &lisp_gpe_main;
+
+ return lgm->is_en;
+}
+
+/** Enable/disable LISP-GPE. */
+clib_error_t *
+vnet_lisp_gpe_enable_disable (vnet_lisp_gpe_enable_disable_args_t * a)
+{
+ lisp_gpe_main_t *lgm = &lisp_gpe_main;
+ vlib_main_t *vm = vlib_get_main ();
+
+ if (a->is_en)
+ {
+ lgm->is_en = 1;
+ udp_register_dst_port (vm, UDP_DST_PORT_lisp_gpe,
+ lisp_gpe_ip4_input_node.index, 1 /* is_ip4 */ );
+ udp_register_dst_port (vm, UDP_DST_PORT_lisp_gpe6,
+ lisp_gpe_ip6_input_node.index, 0 /* is_ip4 */ );
+ }
+ else
+ {
+ /* remove all entries */
+ vnet_lisp_gpe_fwd_entry_flush ();
+
+ /* disable all l3 ifaces */
+ lisp_gpe_tenant_flush ();
+
+ udp_unregister_dst_port (vm, UDP_DST_PORT_lisp_gpe, 0 /* is_ip4 */ );
+ udp_unregister_dst_port (vm, UDP_DST_PORT_lisp_gpe6, 1 /* is_ip4 */ );
+ lgm->is_en = 0;
+ }
+
+ return 0;
+}
+
+/** Set GPE encapsulation mode. */
+int
+vnet_gpe_set_encap_mode (gpe_encap_mode_t mode)
+{
+ lisp_gpe_main_t *lgm = &lisp_gpe_main;
+
+ if (mode >= GPE_ENCAP_COUNT)
+ return VNET_API_ERROR_INVALID_GPE_MODE;
+
+ if (pool_elts (lgm->lisp_fwd_entry_pool) != 0)
+ return VNET_API_ERROR_LISP_GPE_ENTRIES_PRESENT;
+
+ lgm->encap_mode = mode;
+ return 0;
+}
+
+/** CLI command to set GPE encap */
+static clib_error_t *
+gpe_set_encap_mode_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ gpe_encap_mode_t mode = GPE_ENCAP_COUNT;
+ vnet_api_error_t rv;
+
+ /* 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, "lisp"))
+ mode = GPE_ENCAP_LISP;
+ else if (unformat (line_input, "vxlan"))
+ mode = GPE_ENCAP_VXLAN;
+ else
+ {
+ return clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, line_input);
+ }
+ }
+ rv = vnet_gpe_set_encap_mode (mode);
+ if (rv)
+ {
+ return clib_error_return (0,
+ "Error: invalid mode or GPE entries are present!");
+ }
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (gpe_set_encap_mode_command, static) = {
+ .path = "gpe encap",
+ .short_help = "gpe encap [lisp|vxlan]",
+ .function = gpe_set_encap_mode_command_fn,
+};
+/* *INDENT-ON* */
+
+/** Format GPE encap mode. */
+u8 *
+format_vnet_gpe_encap_mode (u8 * s, va_list * args)
+{
+ lisp_gpe_main_t *lgm = &lisp_gpe_main;
+
+ switch (lgm->encap_mode)
+ {
+ case GPE_ENCAP_LISP:
+ return format (s, "lisp");
+ case GPE_ENCAP_VXLAN:
+ return format (s, "vxlan");
+ default:
+ return 0;
+ }
+ return 0;
+}
+
+/** CLI command to show GPE encap */
+static clib_error_t *
+gpe_show_encap_mode_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ vlib_cli_output (vm, "encap mode: %U", format_vnet_gpe_encap_mode);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (gpe_show_encap_mode_command, static) = {
+ .path = "show gpe encap",
+ .short_help = "show GPE encapulation mode",
+ .function = gpe_show_encap_mode_command_fn,
+};
+/* *INDENT-ON* */
+
+/** CLI command to enable/disable LISP-GPE. */
+static clib_error_t *
+lisp_gpe_enable_disable_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u8 is_en = 1;
+ vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a;
+ clib_error_t *error = NULL;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return clib_error_return (0, "expected enable | disable");
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "enable"))
+ is_en = 1;
+ else if (unformat (line_input, "disable"))
+ is_en = 0;
+ else
+ {
+ error = clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+ a->is_en = is_en;
+ error = vnet_lisp_gpe_enable_disable (a);
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (enable_disable_lisp_gpe_command, static) = {
+ .path = "gpe",
+ .short_help = "gpe [enable|disable]",
+ .function = lisp_gpe_enable_disable_command_fn,
+};
+/* *INDENT-ON* */
+
+/** CLI command to show LISP-GPE interfaces. */
+static clib_error_t *
+lisp_show_iface_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ lisp_gpe_main_t *lgm = &lisp_gpe_main;
+ hash_pair_t *p;
+
+ vlib_cli_output (vm, "%=10s%=12s", "vrf", "hw_if_index");
+
+ /* *INDENT-OFF* */
+ hash_foreach_pair (p, lgm->l3_ifaces.hw_if_index_by_dp_table, ({
+ vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
+ }));
+ /* *INDENT-ON* */
+
+ if (0 != lgm->l2_ifaces.hw_if_index_by_dp_table)
+ {
+ vlib_cli_output (vm, "%=10s%=12s", "bd_id", "hw_if_index");
+ /* *INDENT-OFF* */
+ hash_foreach_pair (p, lgm->l2_ifaces.hw_if_index_by_dp_table, ({
+ vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
+ }));
+ /* *INDENT-ON* */
+ }
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (lisp_show_iface_command) = {
+ .path = "show gpe interface",
+ .short_help = "show gpe interface",
+ .function = lisp_show_iface_command_fn,
+};
+/* *INDENT-ON* */
+
+/** CLI command to show GPE fwd native route path. */
+static clib_error_t *
+gpe_show_native_fwd_rpath_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ lisp_gpe_main_t *lgm = &lisp_gpe_main;
+ fib_route_path_t *rpath;
+
+ if (vec_len (lgm->native_fwd_rpath[AF_IP4]))
+ {
+ vec_foreach (rpath, lgm->native_fwd_rpath[AF_IP4])
+ {
+ vlib_cli_output (vm, "nh: %U fib_index %u sw_if_index %u",
+ format_ip46_address, &rpath->frp_addr,
+ IP46_TYPE_IP4, rpath->frp_fib_index,
+ rpath->frp_sw_if_index);
+ }
+ }
+ if (vec_len (lgm->native_fwd_rpath[AF_IP6]))
+ {
+ vec_foreach (rpath, lgm->native_fwd_rpath[AF_IP6])
+ {
+ vlib_cli_output (vm, "nh: %U fib_index %u sw_if_index %u",
+ format_ip46_address, &rpath->frp_addr, IP46_TYPE_IP6,
+ rpath->frp_fib_index, rpath->frp_sw_if_index);
+ }
+ }
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (gpe_show_native_fwd_rpath_command) = {
+ .path = "show gpe native-forward",
+ .short_help = "show gpe native-forward",
+ .function = gpe_show_native_fwd_rpath_command_fn,
+};
+/* *INDENT-ON* */
+
+void
+gpe_update_native_fwd_path (u8 ip_version)
+{
+ lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
+ lisp_gpe_fwd_entry_t *lfe;
+ fib_prefix_t fib_prefix;
+ u32 *lfei;
+
+ vec_foreach (lfei, lgm->native_fwd_lfes[ip_version])
+ {
+ lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, lfei[0]);
+ ip_prefix_to_fib_prefix (&lfe->key->rmt.ippref, &fib_prefix);
+ fib_table_entry_update (lfe->eid_fib_index, &fib_prefix, FIB_SOURCE_LISP,
+ FIB_ENTRY_FLAG_NONE,
+ lgm->native_fwd_rpath[ip_version]);
+ }
+}
+
+int
+vnet_gpe_add_del_native_fwd_rpath (vnet_gpe_native_fwd_rpath_args_t * a)
+{
+ lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
+ fib_route_path_t *rpath;
+ u8 ip_version;
+
+ ip_version = a->rpath.frp_proto == DPO_PROTO_IP4 ? AF_IP4 : AF_IP6;
+
+ if (a->is_add)
+ {
+ vec_add1 (lgm->native_fwd_rpath[ip_version], a->rpath);
+ }
+ else
+ {
+ vec_foreach (rpath, lgm->native_fwd_rpath[ip_version])
+ {
+ if (!fib_route_path_cmp (rpath, &a->rpath))
+ {
+ vec_del1 (lgm->native_fwd_rpath[ip_version],
+ rpath - lgm->native_fwd_rpath[ip_version]);
+ break;
+ }
+ }
+ }
+ gpe_update_native_fwd_path (ip_version);
+ return 0;
+}
+
+/**
+ * CLI command to add action for native forward.
+ */
+static clib_error_t *
+gpe_native_forward_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ unformat_input_t _line_input, *line_input = &_line_input;
+ vnet_api_error_t rv;
+ fib_route_path_t rpath;
+ u32 table_id = ~0;
+ vnet_gpe_native_fwd_rpath_args_t _a, *a = &_a;
+ u8 is_add = 1;
+ clib_error_t *error = 0;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ clib_memset (&rpath, 0, sizeof (rpath));
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "table %d", &table_id))
+ ;
+ else if (unformat (line_input, "del"))
+ is_add = 0;
+ else if (unformat (line_input, "via %U %U",
+ unformat_ip4_address,
+ &rpath.frp_addr.ip4,
+ unformat_vnet_sw_interface, vnm,
+ &rpath.frp_sw_if_index))
+ {
+ rpath.frp_weight = 1;
+ rpath.frp_proto = DPO_PROTO_IP4;
+ }
+ else if (unformat (line_input, "via %U %U",
+ unformat_ip6_address,
+ &rpath.frp_addr.ip6,
+ unformat_vnet_sw_interface, vnm,
+ &rpath.frp_sw_if_index))
+ {
+ rpath.frp_weight = 1;
+ rpath.frp_proto = DPO_PROTO_IP6;
+ }
+ else if (unformat (line_input, "via %U",
+ unformat_ip4_address, &rpath.frp_addr.ip4))
+ {
+ rpath.frp_weight = 1;
+ rpath.frp_sw_if_index = ~0;
+ rpath.frp_proto = DPO_PROTO_IP4;
+ }
+ else if (unformat (line_input, "via %U",
+ unformat_ip6_address, &rpath.frp_addr.ip6))
+ {
+ rpath.frp_weight = 1;
+ rpath.frp_sw_if_index = ~0;
+ rpath.frp_proto = DPO_PROTO_IP6;
+ }
+ else
+ {
+ return clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, line_input);
+ }
+ }
+
+ if ((u32) ~ 0 == table_id)
+ {
+ rpath.frp_fib_index = 0;
+ }
+ else
+ {
+ rpath.frp_fib_index =
+ fib_table_find (dpo_proto_to_fib (rpath.frp_proto), table_id);
+ if ((u32) ~ 0 == rpath.frp_fib_index)
+ {
+ error = clib_error_return (0, "Nonexistent table id %d", table_id);
+ goto done;
+ }
+ }
+
+ a->rpath = rpath;
+ a->is_add = is_add;
+
+ rv = vnet_gpe_add_del_native_fwd_rpath (a);
+ if (rv)
+ {
+ return clib_error_return (0, "Error: couldn't add path!");
+ }
+
+done:
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (gpe_native_forward_command) = {
+ .path = "gpe native-forward",
+ .short_help = "gpe native-forward [del] via <nh-ip-addr> [iface] "
+ "[table <table>]",
+ .function = gpe_native_forward_command_fn,
+};
+/* *INDENT-ON* */
+
+/** Format LISP-GPE status. */
+u8 *
+format_vnet_lisp_gpe_status (u8 * s, va_list * args)
+{
+ lisp_gpe_main_t *lgm = &lisp_gpe_main;
+ return format (s, "%s", lgm->is_en ? "enabled" : "disabled");
+}
+
+/** LISP-GPE init function. */
+clib_error_t *
+lisp_gpe_init (vlib_main_t * vm)
+{
+ lisp_gpe_main_t *lgm = &lisp_gpe_main;
+ clib_error_t *error = 0;
+
+ if ((error = vlib_call_init_function (vm, ip_main_init)))
+ return error;
+
+ if ((error = vlib_call_init_function (vm, ip4_lookup_init)))
+ return error;
+
+ lgm->vnet_main = vnet_get_main ();
+ lgm->vlib_main = vm;
+ lgm->im4 = &ip4_main;
+ lgm->im6 = &ip6_main;
+ lgm->lm4 = &ip4_main.lookup_main;
+ lgm->lm6 = &ip6_main.lookup_main;
+ lgm->encap_mode = GPE_ENCAP_LISP;
+
+ lgm->lisp_gpe_fwd_entries =
+ hash_create_mem (0, sizeof (lisp_gpe_fwd_entry_key_t), sizeof (uword));
+
+ lgm->lisp_stats_index_by_key =
+ hash_create_mem (0, sizeof (lisp_stats_key_t), sizeof (uword));
+ clib_memset (&lgm->counters, 0, sizeof (lgm->counters));
+ lgm->counters.name = "LISP counters";
+
+ return 0;
+}
+
+gpe_encap_mode_t
+vnet_gpe_get_encap_mode (void)
+{
+ lisp_gpe_main_t *lgm = &lisp_gpe_main;
+ return lgm->encap_mode;
+}
+
+static clib_error_t *
+lisp_gpe_test_send_nsh_packet (u8 * file_name)
+{
+ vlib_frame_t *f;
+ vlib_buffer_t *b;
+ lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
+ pcap_main_t pm;
+ clib_error_t *error = 0;
+
+ if (!file_name)
+ return clib_error_create ("no pcap file specified!");
+
+ clib_memset (&pm, 0, sizeof (pm));
+ pm.file_name = (char *) file_name;
+ error = pcap_read (&pm);
+ if (error)
+ return error;
+
+ u32 bi;
+ if (vlib_buffer_alloc (lgm->vlib_main, &bi, 1) != 1)
+ return clib_error_create ("cannot allocate memory!");
+
+ b = vlib_get_buffer (lgm->vlib_main, bi);
+ tunnel_lookup_t *nsh_ifaces = &lgm->nsh_ifaces;
+ uword *hip;
+ vnet_hw_interface_t *hi;
+
+ hip = hash_get (nsh_ifaces->hw_if_index_by_dp_table, 0);
+ if (hip == 0)
+ return clib_error_create ("The NSH 0 interface doesn't exist");
+
+ hi = vnet_get_hw_interface (lgm->vnet_main, hip[0]);
+
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = hi->sw_if_index;
+ u8 *p = vlib_buffer_put_uninit (b, vec_len (pm.packets_read[0]));
+ clib_memcpy_fast (p, pm.packets_read[0], vec_len (pm.packets_read[0]));
+ vlib_buffer_pull (b, sizeof (ethernet_header_t));
+
+ vlib_node_t *n = vlib_get_node_by_name (lgm->vlib_main,
+ (u8 *) "interface-tx");
+ f = vlib_get_frame_to_node (lgm->vlib_main, n->index);
+ u32 *to_next = vlib_frame_vector_args (f);
+ to_next[0] = bi;
+ f->n_vectors = 1;
+ vlib_put_frame_to_node (lgm->vlib_main, n->index, f);
+
+ return error;
+}
+
+static clib_error_t *
+lisp_test_nsh_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ clib_error_t *error = 0;
+ u8 *file_name = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "pcap %v", &file_name))
+ {
+ error = lisp_gpe_test_send_nsh_packet (file_name);
+ goto done;
+ }
+ else
+ {
+ error = clib_error_create ("unknown input `%U'",
+ format_unformat_error, input);
+ goto done;
+ }
+ }
+
+done:
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (lisp_test_nsh_command, static) = {
+ .path = "test one nsh",
+ .short_help = "test gpe nsh pcap <path-to-pcap-file>",
+ .function = lisp_test_nsh_command_fn,
+};
+/* *INDENT-ON* */
+
+VLIB_INIT_FUNCTION (lisp_gpe_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */