diff options
Diffstat (limited to 'src/vnet/gre/interface.c')
| -rw-r--r-- | src/vnet/gre/interface.c | 845 |
1 files changed, 0 insertions, 845 deletions
diff --git a/src/vnet/gre/interface.c b/src/vnet/gre/interface.c deleted file mode 100644 index bb0be865664..00000000000 --- a/src/vnet/gre/interface.c +++ /dev/null @@ -1,845 +0,0 @@ -/* - * gre_interface.c: gre interfaces - * - * Copyright (c) 2012 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/gre/gre.h> -#include <vnet/ip/format.h> -#include <vnet/fib/fib_table.h> -#include <vnet/adj/adj_midchain.h> -#include <vnet/adj/adj_nbr.h> -#include <vnet/mpls/mpls.h> -#include <vnet/l2/l2_input.h> -#include <vnet/teib/teib.h> - -u8 * -format_gre_tunnel_type (u8 * s, va_list * args) -{ - gre_tunnel_type_t type = va_arg (*args, int); - - switch (type) - { -#define _(n, v) case GRE_TUNNEL_TYPE_##n: \ - s = format (s, "%s", v); \ - break; - foreach_gre_tunnel_type -#undef _ - } - - return (s); -} - -static u8 * -format_gre_tunnel (u8 * s, va_list * args) -{ - gre_tunnel_t *t = va_arg (*args, gre_tunnel_t *); - - s = format (s, "[%d] instance %d src %U dst %U fib-idx %d sw-if-idx %d ", - t->dev_instance, t->user_instance, - format_ip46_address, &t->tunnel_src, IP46_TYPE_ANY, - format_ip46_address, &t->tunnel_dst.fp_addr, IP46_TYPE_ANY, - t->outer_fib_index, t->sw_if_index); - - s = format (s, "payload %U ", format_gre_tunnel_type, t->type); - s = format (s, "%U ", format_tunnel_mode, t->mode); - - if (t->type == GRE_TUNNEL_TYPE_ERSPAN) - s = format (s, "session %d ", t->session_id); - - if (t->type != GRE_TUNNEL_TYPE_L3) - s = format (s, "l2-adj-idx %d ", t->l2_adj_index); - - return s; -} - -static gre_tunnel_t * -gre_tunnel_db_find (const vnet_gre_tunnel_add_del_args_t * a, - u32 outer_fib_index, gre_tunnel_key_t * key) -{ - gre_main_t *gm = &gre_main; - uword *p; - - if (!a->is_ipv6) - { - gre_mk_key4 (a->src.ip4, a->dst.ip4, outer_fib_index, - a->type, a->mode, a->session_id, &key->gtk_v4); - p = hash_get_mem (gm->tunnel_by_key4, &key->gtk_v4); - } - else - { - gre_mk_key6 (&a->src.ip6, &a->dst.ip6, outer_fib_index, - a->type, a->mode, a->session_id, &key->gtk_v6); - p = hash_get_mem (gm->tunnel_by_key6, &key->gtk_v6); - } - - if (NULL == p) - return (NULL); - - return (pool_elt_at_index (gm->tunnels, p[0])); -} - -static void -gre_tunnel_db_add (gre_tunnel_t * t, gre_tunnel_key_t * key) -{ - gre_main_t *gm = &gre_main; - - if (t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6) - { - hash_set_mem_alloc (&gm->tunnel_by_key6, &key->gtk_v6, t->dev_instance); - } - else - { - hash_set_mem_alloc (&gm->tunnel_by_key4, &key->gtk_v4, t->dev_instance); - } -} - -static void -gre_tunnel_db_remove (gre_tunnel_t * t, gre_tunnel_key_t * key) -{ - gre_main_t *gm = &gre_main; - - if (t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6) - { - hash_unset_mem_free (&gm->tunnel_by_key6, &key->gtk_v6); - } - else - { - hash_unset_mem_free (&gm->tunnel_by_key4, &key->gtk_v4); - } -} - -/** - * gre_tunnel_stack - * - * 'stack' (resolve the recursion for) the tunnel's midchain adjacency - */ -void -gre_tunnel_stack (adj_index_t ai) -{ - gre_main_t *gm = &gre_main; - ip_adjacency_t *adj; - gre_tunnel_t *gt; - u32 sw_if_index; - - adj = adj_get (ai); - sw_if_index = adj->rewrite_header.sw_if_index; - - if ((vec_len (gm->tunnel_index_by_sw_if_index) <= sw_if_index) || - (~0 == gm->tunnel_index_by_sw_if_index[sw_if_index])) - return; - - gt = pool_elt_at_index (gm->tunnels, - gm->tunnel_index_by_sw_if_index[sw_if_index]); - - if ((vnet_hw_interface_get_flags (vnet_get_main (), gt->hw_if_index) & - VNET_HW_INTERFACE_FLAG_LINK_UP) == 0) - { - adj_midchain_delegate_unstack (ai); - } - else - { - adj_midchain_delegate_stack (ai, gt->outer_fib_index, >->tunnel_dst); - } -} - -/** - * mgre_tunnel_stack - * - * 'stack' (resolve the recursion for) the tunnel's midchain adjacency - */ -static void -mgre_tunnel_stack (adj_index_t ai) -{ - gre_main_t *gm = &gre_main; - const ip_adjacency_t *adj; - const gre_tunnel_t *gt; - u32 sw_if_index; - - adj = adj_get (ai); - sw_if_index = adj->rewrite_header.sw_if_index; - - if ((vec_len (gm->tunnel_index_by_sw_if_index) <= sw_if_index) || - (~0 == gm->tunnel_index_by_sw_if_index[sw_if_index])) - return; - - gt = pool_elt_at_index (gm->tunnels, - gm->tunnel_index_by_sw_if_index[sw_if_index]); - - if ((vnet_hw_interface_get_flags (vnet_get_main (), gt->hw_if_index) & - VNET_HW_INTERFACE_FLAG_LINK_UP) == 0) - { - adj_midchain_delegate_unstack (ai); - } - else - { - const teib_entry_t *ne; - - ne = teib_entry_find_46 (sw_if_index, adj->ia_nh_proto, - &adj->sub_type.nbr.next_hop); - if (NULL != ne) - teib_entry_adj_stack (ne, ai); - } -} - -/** - * @brief Call back when restacking all adjacencies on a GRE interface - */ -static adj_walk_rc_t -gre_adj_walk_cb (adj_index_t ai, void *ctx) -{ - gre_tunnel_stack (ai); - - return (ADJ_WALK_RC_CONTINUE); -} -static adj_walk_rc_t -mgre_adj_walk_cb (adj_index_t ai, void *ctx) -{ - mgre_tunnel_stack (ai); - - return (ADJ_WALK_RC_CONTINUE); -} - -static void -gre_tunnel_restack (gre_tunnel_t * gt) -{ - fib_protocol_t proto; - - /* - * walk all the adjacencies on th GRE interface and restack them - */ - FOR_EACH_FIB_IP_PROTOCOL (proto) - { - switch (gt->mode) - { - case TUNNEL_MODE_P2P: - adj_nbr_walk (gt->sw_if_index, proto, gre_adj_walk_cb, NULL); - break; - case TUNNEL_MODE_MP: - adj_nbr_walk (gt->sw_if_index, proto, mgre_adj_walk_cb, NULL); - break; - } - } -} - -static void -gre_teib_mk_key (const gre_tunnel_t * t, - const teib_entry_t * ne, gre_tunnel_key_t * key) -{ - const fib_prefix_t *nh; - - nh = teib_entry_get_nh (ne); - - /* construct the key using mode P2P so it can be found in the DP */ - if (FIB_PROTOCOL_IP4 == nh->fp_proto) - gre_mk_key4 (t->tunnel_src.ip4, - nh->fp_addr.ip4, - teib_entry_get_fib_index (ne), - t->type, TUNNEL_MODE_P2P, 0, &key->gtk_v4); - else - gre_mk_key6 (&t->tunnel_src.ip6, - &nh->fp_addr.ip6, - teib_entry_get_fib_index (ne), - t->type, TUNNEL_MODE_P2P, 0, &key->gtk_v6); -} - -/** - * An TEIB entry has been added - */ -static void -gre_teib_entry_added (const teib_entry_t * ne) -{ - gre_main_t *gm = &gre_main; - const ip_address_t *nh; - gre_tunnel_key_t key; - gre_tunnel_t *t; - u32 sw_if_index; - u32 t_idx; - - sw_if_index = teib_entry_get_sw_if_index (ne); - if (vec_len (gm->tunnel_index_by_sw_if_index) < sw_if_index) - return; - - t_idx = gm->tunnel_index_by_sw_if_index[sw_if_index]; - - if (INDEX_INVALID == t_idx) - return; - - /* entry has been added on an interface for which there is a GRE tunnel */ - t = pool_elt_at_index (gm->tunnels, t_idx); - - if (t->mode != TUNNEL_MODE_MP) - return; - - /* the next-hop (underlay) of the NHRP entry will form part of the key for - * ingress lookup to match packets to this interface */ - gre_teib_mk_key (t, ne, &key); - gre_tunnel_db_add (t, &key); - - /* update the rewrites for each of the adjacencies for this peer (overlay) - * using the next-hop (underlay) */ - mgre_walk_ctx_t ctx = { - .t = t, - .ne = ne - }; - nh = teib_entry_get_peer (ne); - adj_nbr_walk_nh (teib_entry_get_sw_if_index (ne), - (AF_IP4 == ip_addr_version (nh) ? - FIB_PROTOCOL_IP4 : - FIB_PROTOCOL_IP6), - &ip_addr_46 (nh), mgre_mk_complete_walk, &ctx); -} - -static void -gre_teib_entry_deleted (const teib_entry_t * ne) -{ - gre_main_t *gm = &gre_main; - const ip_address_t *nh; - gre_tunnel_key_t key; - gre_tunnel_t *t; - u32 sw_if_index; - u32 t_idx; - - sw_if_index = teib_entry_get_sw_if_index (ne); - if (vec_len (gm->tunnel_index_by_sw_if_index) < sw_if_index) - return; - - t_idx = gm->tunnel_index_by_sw_if_index[sw_if_index]; - - if (INDEX_INVALID == t_idx) - return; - - t = pool_elt_at_index (gm->tunnels, t_idx); - - /* remove the next-hop as an ingress lookup key */ - gre_teib_mk_key (t, ne, &key); - gre_tunnel_db_remove (t, &key); - - nh = teib_entry_get_peer (ne); - - /* make all the adjacencies incomplete */ - adj_nbr_walk_nh (teib_entry_get_sw_if_index (ne), - (AF_IP4 == ip_addr_version (nh) ? - FIB_PROTOCOL_IP4 : - FIB_PROTOCOL_IP6), - &ip_addr_46 (nh), mgre_mk_incomplete_walk, t); -} - -static walk_rc_t -gre_tunnel_delete_teib_walk (index_t nei, void *ctx) -{ - gre_tunnel_t *t = ctx; - gre_tunnel_key_t key; - - gre_teib_mk_key (t, teib_entry_get (nei), &key); - gre_tunnel_db_remove (t, &key); - - return (WALK_CONTINUE); -} - -static walk_rc_t -gre_tunnel_add_teib_walk (index_t nei, void *ctx) -{ - gre_tunnel_t *t = ctx; - gre_tunnel_key_t key = {}; - - gre_teib_mk_key (t, teib_entry_get (nei), &key); - gre_tunnel_db_add (t, &key); - - return (WALK_CONTINUE); -} - -static int -vnet_gre_tunnel_add (vnet_gre_tunnel_add_del_args_t * a, - u32 outer_fib_index, u32 * sw_if_indexp) -{ - gre_main_t *gm = &gre_main; - vnet_main_t *vnm = gm->vnet_main; - gre_tunnel_t *t; - vnet_hw_interface_t *hi; - u32 hw_if_index, sw_if_index; - u8 is_ipv6 = a->is_ipv6; - gre_tunnel_key_t key; - - t = gre_tunnel_db_find (a, outer_fib_index, &key); - if (NULL != t) - return VNET_API_ERROR_IF_ALREADY_EXISTS; - - pool_get_aligned (gm->tunnels, t, CLIB_CACHE_LINE_BYTES); - clib_memset (t, 0, sizeof (*t)); - - /* Reconcile the real dev_instance and a possible requested instance */ - u32 t_idx = t - gm->tunnels; /* tunnel index (or instance) */ - u32 u_idx = a->instance; /* user specified instance */ - if (u_idx == ~0) - u_idx = t_idx; - if (hash_get (gm->instance_used, u_idx)) - { - pool_put (gm->tunnels, t); - return VNET_API_ERROR_INSTANCE_IN_USE; - } - hash_set (gm->instance_used, u_idx, 1); - - t->dev_instance = t_idx; /* actual */ - t->user_instance = u_idx; /* name */ - - t->type = a->type; - t->mode = a->mode; - t->flags = a->flags; - if (t->type == GRE_TUNNEL_TYPE_ERSPAN) - t->session_id = a->session_id; - - if (t->type == GRE_TUNNEL_TYPE_L3) - { - if (t->mode == TUNNEL_MODE_P2P) - hw_if_index = - vnet_register_interface (vnm, gre_device_class.index, t_idx, - gre_hw_interface_class.index, t_idx); - else - hw_if_index = - vnet_register_interface (vnm, gre_device_class.index, t_idx, - mgre_hw_interface_class.index, t_idx); - } - else - { - vnet_eth_interface_registration_t eir = {}; - - /* Default MAC address (d00b:eed0:0000 + sw_if_index) */ - u8 address[6] = - { 0xd0, 0x0b, 0xee, 0xd0, (u8) (t_idx >> 8), (u8) t_idx }; - - eir.dev_class_index = gre_device_class.index; - eir.dev_instance = t_idx; - eir.address = address; - hw_if_index = vnet_eth_register_interface (vnm, &eir); - } - - /* Set GRE tunnel interface output node (not used for L3 payload) */ - if (GRE_TUNNEL_TYPE_ERSPAN == t->type) - vnet_set_interface_output_node (vnm, hw_if_index, - gre_erspan_encap_node.index); - else - vnet_set_interface_output_node (vnm, hw_if_index, - gre_teb_encap_node.index); - - hi = vnet_get_hw_interface (vnm, hw_if_index); - sw_if_index = hi->sw_if_index; - - t->hw_if_index = hw_if_index; - t->outer_fib_index = outer_fib_index; - t->sw_if_index = sw_if_index; - t->l2_adj_index = ADJ_INDEX_INVALID; - - vec_validate_init_empty (gm->tunnel_index_by_sw_if_index, sw_if_index, ~0); - gm->tunnel_index_by_sw_if_index[sw_if_index] = t_idx; - - if (!is_ipv6) - { - hi->frame_overhead = sizeof (gre_header_t) + sizeof (ip4_header_t); - hi->min_frame_size = hi->frame_overhead + 64; - } - else - { - hi->frame_overhead = sizeof (gre_header_t) + sizeof (ip6_header_t); - hi->min_frame_size = hi->frame_overhead + 64; - } - - /* Standard default gre MTU. */ - vnet_sw_interface_set_mtu (vnm, sw_if_index, 9000); - - /* - * source the FIB entry for the tunnel's destination - * and become a child thereof. The tunnel will then get poked - * when the forwarding for the entry updates, and the tunnel can - * re-stack accordingly - */ - - clib_memcpy (&t->tunnel_src, &a->src, sizeof (t->tunnel_src)); - t->tunnel_dst.fp_len = !is_ipv6 ? 32 : 128; - t->tunnel_dst.fp_proto = !is_ipv6 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6; - t->tunnel_dst.fp_addr = a->dst; - - gre_tunnel_db_add (t, &key); - - if (t->mode == TUNNEL_MODE_MP) - teib_walk_itf (t->sw_if_index, gre_tunnel_add_teib_walk, t); - - if (t->type == GRE_TUNNEL_TYPE_ERSPAN) - { - gre_sn_key_t skey; - gre_sn_t *gre_sn; - - gre_mk_sn_key (t, &skey); - gre_sn = (gre_sn_t *) hash_get_mem (gm->seq_num_by_key, &skey); - if (gre_sn != NULL) - { - gre_sn->ref_count++; - t->gre_sn = gre_sn; - } - else - { - gre_sn = clib_mem_alloc (sizeof (gre_sn_t)); - gre_sn->seq_num = 0; - gre_sn->ref_count = 1; - t->gre_sn = gre_sn; - hash_set_mem_alloc (&gm->seq_num_by_key, &skey, (uword) gre_sn); - } - } - - if (t->type != GRE_TUNNEL_TYPE_L3) - { - t->l2_adj_index = adj_nbr_add_or_lock - (t->tunnel_dst.fp_proto, VNET_LINK_ETHERNET, &zero_addr, sw_if_index); - vnet_set_interface_l3_output_node (gm->vlib_main, sw_if_index, - (u8 *) "tunnel-output-no-count"); - gre_update_adj (vnm, t->sw_if_index, t->l2_adj_index); - } - else - { - vnet_set_interface_l3_output_node (gm->vlib_main, sw_if_index, - (u8 *) "tunnel-output"); - } - if (sw_if_indexp) - *sw_if_indexp = sw_if_index; - - /* register gre46-input nodes */ - ip4_register_protocol (IP_PROTOCOL_GRE, gre4_input_node.index); - ip6_register_protocol (IP_PROTOCOL_GRE, gre6_input_node.index); - - return 0; -} - -static int -vnet_gre_tunnel_delete (vnet_gre_tunnel_add_del_args_t * a, - u32 outer_fib_index, u32 * sw_if_indexp) -{ - gre_main_t *gm = &gre_main; - vnet_main_t *vnm = gm->vnet_main; - gre_tunnel_t *t; - gre_tunnel_key_t key; - u32 sw_if_index; - - t = gre_tunnel_db_find (a, outer_fib_index, &key); - if (NULL == t) - return VNET_API_ERROR_NO_SUCH_ENTRY; - - if (t->mode == TUNNEL_MODE_MP) - teib_walk_itf (t->sw_if_index, gre_tunnel_delete_teib_walk, t); - - sw_if_index = t->sw_if_index; - vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ ); - - /* make sure tunnel is removed from l2 bd or xconnect */ - set_int_l2_mode (gm->vlib_main, vnm, MODE_L3, sw_if_index, 0, - L2_BD_PORT_TYPE_NORMAL, 0, 0); - gm->tunnel_index_by_sw_if_index[sw_if_index] = ~0; - - if (t->type == GRE_TUNNEL_TYPE_L3) - vnet_delete_hw_interface (vnm, t->hw_if_index); - else - ethernet_delete_interface (vnm, t->hw_if_index); - - if (t->l2_adj_index != ADJ_INDEX_INVALID) - { - adj_midchain_delegate_unstack (t->l2_adj_index); - adj_unlock (t->l2_adj_index); - } - - ASSERT ((t->type != GRE_TUNNEL_TYPE_ERSPAN) || (t->gre_sn != NULL)); - if ((t->type == GRE_TUNNEL_TYPE_ERSPAN) && (t->gre_sn->ref_count-- == 1)) - { - gre_sn_key_t skey; - gre_mk_sn_key (t, &skey); - hash_unset_mem_free (&gm->seq_num_by_key, &skey); - clib_mem_free (t->gre_sn); - } - - vnet_reset_interface_l3_output_node (gm->vlib_main, sw_if_index); - hash_unset (gm->instance_used, t->user_instance); - gre_tunnel_db_remove (t, &key); - pool_put (gm->tunnels, t); - - if (sw_if_indexp) - *sw_if_indexp = sw_if_index; - - return 0; -} - -int -vnet_gre_tunnel_add_del (vnet_gre_tunnel_add_del_args_t * a, - u32 * sw_if_indexp) -{ - u32 outer_fib_index; - - outer_fib_index = fib_table_find ((a->is_ipv6 ? - FIB_PROTOCOL_IP6 : - FIB_PROTOCOL_IP4), a->outer_table_id); - - if (~0 == outer_fib_index) - return VNET_API_ERROR_NO_SUCH_FIB; - - if (a->session_id > GTK_SESSION_ID_MAX) - return VNET_API_ERROR_INVALID_SESSION_ID; - - if (a->mode == TUNNEL_MODE_MP && !ip46_address_is_zero (&a->dst)) - return (VNET_API_ERROR_INVALID_DST_ADDRESS); - - if (a->is_add) - return (vnet_gre_tunnel_add (a, outer_fib_index, sw_if_indexp)); - else - return (vnet_gre_tunnel_delete (a, outer_fib_index, sw_if_indexp)); -} - -clib_error_t * -gre_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) -{ - gre_main_t *gm = &gre_main; - vnet_hw_interface_t *hi; - gre_tunnel_t *t; - u32 ti; - - hi = vnet_get_hw_interface (vnm, hw_if_index); - - if (NULL == gm->tunnel_index_by_sw_if_index || - hi->sw_if_index >= vec_len (gm->tunnel_index_by_sw_if_index)) - return (NULL); - - ti = gm->tunnel_index_by_sw_if_index[hi->sw_if_index]; - - if (~0 == ti) - /* not one of ours */ - return (NULL); - - t = pool_elt_at_index (gm->tunnels, ti); - - if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) - vnet_hw_interface_set_flags (vnm, hw_if_index, - VNET_HW_INTERFACE_FLAG_LINK_UP); - else - vnet_hw_interface_set_flags (vnm, hw_if_index, 0 /* down */ ); - - gre_tunnel_restack (t); - - return /* no error */ 0; -} - -static clib_error_t * -create_gre_tunnel_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - unformat_input_t _line_input, *line_input = &_line_input; - vnet_gre_tunnel_add_del_args_t _a, *a = &_a; - ip46_address_t src = ip46_address_initializer, dst = - ip46_address_initializer; - u32 instance = ~0; - u32 outer_table_id = 0; - gre_tunnel_type_t t_type = GRE_TUNNEL_TYPE_L3; - tunnel_mode_t t_mode = TUNNEL_MODE_P2P; - tunnel_encap_decap_flags_t flags = TUNNEL_ENCAP_DECAP_FLAG_NONE; - u32 session_id = 0; - int rv; - u8 is_add = 1; - u32 sw_if_index; - clib_error_t *error = NULL; - - /* 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, "instance %d", &instance)) - ; - else if (unformat (line_input, "src %U", unformat_ip46_address, &src)) - ; - else if (unformat (line_input, "dst %U", unformat_ip46_address, &dst)) - ; - else if (unformat (line_input, "outer-table-id %d", &outer_table_id)) - ; - else if (unformat (line_input, "multipoint")) - t_mode = TUNNEL_MODE_MP; - else if (unformat (line_input, "teb")) - t_type = GRE_TUNNEL_TYPE_TEB; - else if (unformat (line_input, "erspan %d", &session_id)) - t_type = GRE_TUNNEL_TYPE_ERSPAN; - else - if (unformat - (line_input, "flags %U", unformat_tunnel_encap_decap_flags, - &flags)) - ; - else - { - error = clib_error_return (0, "unknown input `%U'", - format_unformat_error, line_input); - goto done; - } - } - - if (ip46_address_is_equal (&src, &dst)) - { - error = clib_error_return (0, "src and dst are identical"); - goto done; - } - - if (t_mode != TUNNEL_MODE_MP && ip46_address_is_zero (&dst)) - { - error = clib_error_return (0, "destination address not specified"); - goto done; - } - - if (ip46_address_is_zero (&src)) - { - error = clib_error_return (0, "source address not specified"); - goto done; - } - - if (ip46_address_is_ip4 (&src) != ip46_address_is_ip4 (&dst)) - { - error = - clib_error_return (0, "src and dst address must be the same AF"); - goto done; - } - - clib_memset (a, 0, sizeof (*a)); - a->is_add = is_add; - a->outer_table_id = outer_table_id; - a->type = t_type; - a->mode = t_mode; - a->session_id = session_id; - a->is_ipv6 = !ip46_address_is_ip4 (&src); - a->instance = instance; - a->flags = flags; - clib_memcpy (&a->src, &src, sizeof (a->src)); - clib_memcpy (&a->dst, &dst, sizeof (a->dst)); - - rv = vnet_gre_tunnel_add_del (a, &sw_if_index); - - switch (rv) - { - case 0: - vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, - vnet_get_main (), sw_if_index); - break; - case VNET_API_ERROR_IF_ALREADY_EXISTS: - error = clib_error_return (0, "GRE tunnel already exists..."); - goto done; - case VNET_API_ERROR_NO_SUCH_FIB: - error = clib_error_return (0, "outer table ID %d doesn't exist\n", - outer_table_id); - goto done; - case VNET_API_ERROR_NO_SUCH_ENTRY: - error = clib_error_return (0, "GRE tunnel doesn't exist"); - goto done; - case VNET_API_ERROR_INVALID_SESSION_ID: - error = clib_error_return (0, "session ID %d out of range\n", - session_id); - goto done; - case VNET_API_ERROR_INSTANCE_IN_USE: - error = clib_error_return (0, "Instance is in use"); - goto done; - default: - error = - clib_error_return (0, "vnet_gre_tunnel_add_del returned %d", rv); - goto done; - } - -done: - unformat_free (line_input); - - return error; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (create_gre_tunnel_command, static) = { - .path = "create gre tunnel", - .short_help = "create gre tunnel src <addr> dst <addr> [instance <n>] " - "[outer-fib-id <fib>] [teb | erspan <session-id>] [del] " - "[multipoint]", - .function = create_gre_tunnel_command_fn, -}; -/* *INDENT-ON* */ - -static clib_error_t * -show_gre_tunnel_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - gre_main_t *gm = &gre_main; - gre_tunnel_t *t; - u32 ti = ~0; - - if (pool_elts (gm->tunnels) == 0) - vlib_cli_output (vm, "No GRE tunnels configured..."); - - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "%d", &ti)) - ; - else - break; - } - - if (~0 == ti) - { - /* *INDENT-OFF* */ - pool_foreach (t, gm->tunnels) - { - vlib_cli_output (vm, "%U", format_gre_tunnel, t); - } - /* *INDENT-ON* */ - } - else - { - t = pool_elt_at_index (gm->tunnels, ti); - - vlib_cli_output (vm, "%U", format_gre_tunnel, t); - } - - return 0; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (show_gre_tunnel_command, static) = { - .path = "show gre tunnel", - .function = show_gre_tunnel_command_fn, -}; -/* *INDENT-ON* */ - -const static teib_vft_t gre_teib_vft = { - .nv_added = gre_teib_entry_added, - .nv_deleted = gre_teib_entry_deleted, -}; - -/* force inclusion from application's main.c */ -clib_error_t * -gre_interface_init (vlib_main_t * vm) -{ - teib_register (&gre_teib_vft); - - return (NULL); -} - -VLIB_INIT_FUNCTION (gre_interface_init); - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |