Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016 Cisco and/or its affiliates. |
| 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | * you may not use this file except in compliance with the License. |
| 5 | * You may obtain a copy of the License at: |
| 6 | * |
| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | * |
| 9 | * Unless required by applicable law or agreed to in writing, software |
| 10 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | * See the License for the specific language governing permissions and |
| 13 | * limitations under the License. |
| 14 | */ |
| 15 | |
Florin Coras | ff0bf13 | 2016-09-05 19:30:35 +0200 | [diff] [blame] | 16 | /** |
| 17 | * @file |
| 18 | * @brief Common utility functions for LISP-GPE interfaces. |
| 19 | * |
| 20 | */ |
| 21 | |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 22 | #include <vppinfra/error.h> |
| 23 | #include <vppinfra/hash.h> |
| 24 | #include <vnet/vnet.h> |
| 25 | #include <vnet/ip/ip.h> |
| 26 | #include <vnet/ip/udp.h> |
| 27 | #include <vnet/ethernet/ethernet.h> |
| 28 | #include <vnet/lisp-gpe/lisp_gpe.h> |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 29 | #include <vnet/lisp-gpe/lisp_gpe_fwd_entry.h> |
| 30 | #include <vnet/lisp-gpe/lisp_gpe_tenant.h> |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 31 | #include <vnet/lisp-gpe/lisp_gpe_adjacency.h> |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 32 | #include <vnet/adj/adj.h> |
| 33 | #include <vnet/fib/fib_table.h> |
| 34 | #include <vnet/fib/ip4_fib.h> |
| 35 | #include <vnet/fib/ip6_fib.h> |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 36 | #include <vnet/lisp-cp/lisp_cp_dpo.h> |
| 37 | |
| 38 | /** |
| 39 | * @brief The VLIB node arc/edge from the interface's TX node, to the L2 |
| 40 | * load-balanceing node. Which is where all packets go |
| 41 | */ |
| 42 | static uword l2_arc_to_lb; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 43 | |
| 44 | #define foreach_lisp_gpe_tx_next \ |
| 45 | _(DROP, "error-drop") \ |
Florin Coras | 02655bd | 2016-04-26 00:17:24 +0200 | [diff] [blame] | 46 | _(IP4_LOOKUP, "ip4-lookup") \ |
| 47 | _(IP6_LOOKUP, "ip6-lookup") |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 48 | |
| 49 | typedef enum |
| 50 | { |
| 51 | #define _(sym,str) LISP_GPE_TX_NEXT_##sym, |
| 52 | foreach_lisp_gpe_tx_next |
| 53 | #undef _ |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 54 | LISP_GPE_TX_N_NEXT, |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 55 | } lisp_gpe_tx_next_t; |
| 56 | |
| 57 | typedef struct |
| 58 | { |
| 59 | u32 tunnel_index; |
| 60 | } lisp_gpe_tx_trace_t; |
| 61 | |
| 62 | u8 * |
| 63 | format_lisp_gpe_tx_trace (u8 * s, va_list * args) |
| 64 | { |
| 65 | CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); |
| 66 | CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 67 | lisp_gpe_tx_trace_t *t = va_arg (*args, lisp_gpe_tx_trace_t *); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 68 | |
| 69 | s = format (s, "LISP-GPE-TX: tunnel %d", t->tunnel_index); |
| 70 | return s; |
| 71 | } |
| 72 | |
Florin Coras | 02655bd | 2016-04-26 00:17:24 +0200 | [diff] [blame] | 73 | #define is_v4_packet(_h) ((*(u8*) _h) & 0xF0) == 0x40 |
| 74 | |
Florin Coras | ff0bf13 | 2016-09-05 19:30:35 +0200 | [diff] [blame] | 75 | /** |
| 76 | * @brief LISP-GPE interface TX (encap) function. |
| 77 | * @node lisp_gpe_interface_tx |
| 78 | * |
| 79 | * The LISP-GPE interface TX (encap) function. |
| 80 | * |
| 81 | * Looks up the associated tunnel based on the adjacency hit in the SD FIB |
| 82 | * and if the tunnel is multihomed it uses the flow hash to determine |
| 83 | * sub-tunnel, and rewrite string, to be used to encapsulate the packet. |
| 84 | * |
| 85 | * @param[in] vm vlib_main_t corresponding to the current thread. |
| 86 | * @param[in] node vlib_node_runtime_t data for this node. |
| 87 | * @param[in] frame vlib_frame_t whose contents should be dispatched. |
| 88 | * |
| 89 | * @return number of vectors in frame. |
| 90 | */ |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 91 | static uword |
| 92 | lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 93 | vlib_frame_t * from_frame) |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 94 | { |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 95 | u32 n_left_from, next_index, *from, *to_next; |
| 96 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 97 | |
| 98 | from = vlib_frame_vector_args (from_frame); |
| 99 | n_left_from = from_frame->n_vectors; |
| 100 | |
| 101 | next_index = node->cached_next_index; |
| 102 | |
| 103 | while (n_left_from > 0) |
| 104 | { |
| 105 | u32 n_left_to_next; |
| 106 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 107 | vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 108 | |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 109 | while (n_left_from > 0 && n_left_to_next > 0) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 110 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 111 | u32 bi0, adj_index0, next0; |
| 112 | const ip_adjacency_t *adj0; |
| 113 | const dpo_id_t *dpo0; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 114 | vlib_buffer_t *b0; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 115 | u8 is_v4_0; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 116 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 117 | bi0 = from[0]; |
| 118 | to_next[0] = bi0; |
| 119 | from += 1; |
| 120 | to_next += 1; |
| 121 | n_left_from -= 1; |
| 122 | n_left_to_next -= 1; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 123 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 124 | b0 = vlib_get_buffer (vm, bi0); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 125 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 126 | /* Fixup the checksum and len fields in the LISP tunnel encap |
| 127 | * that was applied at the midchain node */ |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 128 | is_v4_0 = is_v4_packet (vlib_buffer_get_current (b0)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 129 | ip_udp_fixup_one (lgm->vlib_main, b0, is_v4_0); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 130 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 131 | /* Follow the DPO on which the midchain is stacked */ |
| 132 | adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; |
| 133 | adj0 = adj_get (adj_index0); |
| 134 | dpo0 = &adj0->sub_type.midchain.next_dpo; |
| 135 | next0 = dpo0->dpoi_next_node; |
| 136 | vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 137 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 138 | if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) |
| 139 | { |
| 140 | lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0, |
| 141 | sizeof (*tr)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 142 | tr->tunnel_index = adj_index0; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 143 | } |
| 144 | vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, |
| 145 | n_left_to_next, bi0, next0); |
| 146 | } |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 147 | |
| 148 | vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
| 149 | } |
Florin Coras | 0f6b796 | 2016-06-21 22:32:47 +0200 | [diff] [blame] | 150 | |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 151 | return from_frame->n_vectors; |
| 152 | } |
| 153 | |
| 154 | static u8 * |
| 155 | format_lisp_gpe_name (u8 * s, va_list * args) |
| 156 | { |
| 157 | u32 dev_instance = va_arg (*args, u32); |
| 158 | return format (s, "lisp_gpe%d", dev_instance); |
| 159 | } |
| 160 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 161 | /* *INDENT-OFF* */ |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 162 | VNET_DEVICE_CLASS (lisp_gpe_device_class) = { |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 163 | .name = "LISP_GPE", |
| 164 | .format_device_name = format_lisp_gpe_name, |
| 165 | .format_tx_trace = format_lisp_gpe_tx_trace, |
| 166 | .tx_function = lisp_gpe_interface_tx, |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 167 | }; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 168 | /* *INDENT-ON* */ |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 169 | |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 170 | u8 * |
| 171 | format_lisp_gpe_header_with_length (u8 * s, va_list * args) |
| 172 | { |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 173 | lisp_gpe_header_t *h = va_arg (*args, lisp_gpe_header_t *); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 174 | u32 max_header_bytes = va_arg (*args, u32); |
| 175 | u32 header_bytes; |
| 176 | |
| 177 | header_bytes = sizeof (h[0]); |
| 178 | if (max_header_bytes != 0 && header_bytes > max_header_bytes) |
| 179 | return format (s, "lisp-gpe header truncated"); |
| 180 | |
| 181 | s = format (s, "flags: "); |
| 182 | #define _(n,v) if (h->flags & v) s = format (s, "%s ", #n); |
| 183 | foreach_lisp_gpe_flag_bit; |
| 184 | #undef _ |
| 185 | |
| 186 | s = format (s, "\n ver_res %d res %d next_protocol %d iid %d(%x)", |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 187 | h->ver_res, h->res, h->next_protocol, |
| 188 | clib_net_to_host_u32 (h->iid), clib_net_to_host_u32 (h->iid)); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 189 | return s; |
| 190 | } |
| 191 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 192 | /* *INDENT-OFF* */ |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 193 | VNET_HW_INTERFACE_CLASS (lisp_gpe_hw_class) = { |
| 194 | .name = "LISP_GPE", |
| 195 | .format_header = format_lisp_gpe_header_with_length, |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 196 | .build_rewrite = lisp_gpe_build_rewrite, |
| 197 | .update_adjacency = lisp_gpe_update_adjacency, |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 198 | }; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 199 | /* *INDENT-ON* */ |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 200 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 201 | |
| 202 | typedef struct |
| 203 | { |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 204 | u32 dpo_index; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 205 | } l2_lisp_gpe_tx_trace_t; |
| 206 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 207 | static u8 * |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 208 | format_l2_lisp_gpe_tx_trace (u8 * s, va_list * args) |
| 209 | { |
| 210 | CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); |
| 211 | CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 212 | l2_lisp_gpe_tx_trace_t *t = va_arg (*args, l2_lisp_gpe_tx_trace_t *); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 213 | |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 214 | s = format (s, "L2-LISP-GPE-TX: load-balance %d", t->dpo_index); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 215 | return s; |
| 216 | } |
| 217 | |
Florin Coras | ff0bf13 | 2016-09-05 19:30:35 +0200 | [diff] [blame] | 218 | /** |
| 219 | * @brief LISP-GPE interface TX (encap) function for L2 overlays. |
| 220 | * @node l2_lisp_gpe_interface_tx |
| 221 | * |
| 222 | * The L2 LISP-GPE interface TX (encap) function. |
| 223 | * |
| 224 | * Uses bridge domain index, source and destination ethernet addresses to |
| 225 | * lookup tunnel. If the tunnel is multihomed a flow has is used to determine |
| 226 | * the sub-tunnel and therefore the rewrite string to be used to encapsulate |
| 227 | * the packets. |
| 228 | * |
| 229 | * @param[in] vm vlib_main_t corresponding to the current thread. |
| 230 | * @param[in] node vlib_node_runtime_t data for this node. |
| 231 | * @param[in] frame vlib_frame_t whose contents should be dispatched. |
| 232 | * |
| 233 | * @return number of vectors in frame. |
| 234 | */ |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 235 | static uword |
| 236 | l2_lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 237 | vlib_frame_t * from_frame) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 238 | { |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 239 | u32 n_left_from, next_index, *from, *to_next; |
| 240 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 241 | |
| 242 | from = vlib_frame_vector_args (from_frame); |
| 243 | n_left_from = from_frame->n_vectors; |
| 244 | |
| 245 | next_index = node->cached_next_index; |
| 246 | |
| 247 | while (n_left_from > 0) |
| 248 | { |
| 249 | u32 n_left_to_next; |
| 250 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 251 | vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 252 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 253 | while (n_left_from > 0 && n_left_to_next > 0) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 254 | { |
| 255 | vlib_buffer_t *b0; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 256 | u32 bi0, lbi0; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 257 | ethernet_header_t *e0; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 258 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 259 | bi0 = from[0]; |
| 260 | to_next[0] = bi0; |
| 261 | from += 1; |
| 262 | to_next += 1; |
| 263 | n_left_from -= 1; |
| 264 | n_left_to_next -= 1; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 265 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 266 | b0 = vlib_get_buffer (vm, bi0); |
| 267 | e0 = vlib_buffer_get_current (b0); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 268 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 269 | vnet_buffer (b0)->lisp.overlay_afi = LISP_AFI_MAC; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 270 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 271 | /* lookup dst + src mac */ |
| 272 | lbi0 = lisp_l2_fib_lookup (lgm, vnet_buffer (b0)->l2.bd_index, |
| 273 | e0->src_address, e0->dst_address); |
| 274 | vnet_buffer (b0)->ip.adj_index[VLIB_TX] = lbi0; |
| 275 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 276 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 277 | if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) |
| 278 | { |
| 279 | l2_lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0, |
| 280 | sizeof (*tr)); |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 281 | tr->dpo_index = lbi0; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 282 | } |
| 283 | vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 284 | n_left_to_next, bi0, l2_arc_to_lb); |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 285 | } |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 286 | |
| 287 | vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 288 | } |
| 289 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 290 | return from_frame->n_vectors; |
| 291 | } |
| 292 | |
| 293 | static u8 * |
| 294 | format_l2_lisp_gpe_name (u8 * s, va_list * args) |
| 295 | { |
| 296 | u32 dev_instance = va_arg (*args, u32); |
| 297 | return format (s, "l2_lisp_gpe%d", dev_instance); |
| 298 | } |
| 299 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 300 | /* *INDENT-OFF* */ |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 301 | VNET_DEVICE_CLASS (l2_lisp_gpe_device_class,static) = { |
| 302 | .name = "L2_LISP_GPE", |
| 303 | .format_device_name = format_l2_lisp_gpe_name, |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 304 | .format_tx_trace = format_l2_lisp_gpe_tx_trace, |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 305 | .tx_function = l2_lisp_gpe_interface_tx, |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 306 | }; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 307 | /* *INDENT-ON* */ |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 308 | |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 309 | typedef struct |
| 310 | { |
| 311 | u32 dpo_index; |
| 312 | } nsh_lisp_gpe_tx_trace_t; |
| 313 | |
| 314 | u8 * |
| 315 | format_nsh_lisp_gpe_tx_trace (u8 * s, va_list * args) |
| 316 | { |
| 317 | CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); |
| 318 | CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); |
| 319 | nsh_lisp_gpe_tx_trace_t *t = va_arg (*args, nsh_lisp_gpe_tx_trace_t *); |
| 320 | |
| 321 | s = format (s, "NSH-GPE-TX: tunnel %d", t->dpo_index); |
| 322 | return s; |
| 323 | } |
| 324 | |
| 325 | /** |
| 326 | * @brief LISP-GPE interface TX for NSH overlays. |
| 327 | * @node nsh_lisp_gpe_interface_tx |
| 328 | * |
| 329 | * The NSH LISP-GPE interface TX function. |
| 330 | * |
| 331 | * @param[in] vm vlib_main_t corresponding to the current thread. |
| 332 | * @param[in] node vlib_node_runtime_t data for this node. |
| 333 | * @param[in] frame vlib_frame_t whose contents should be dispatched. |
| 334 | * |
| 335 | * @return number of vectors in frame. |
| 336 | */ |
| 337 | static uword |
| 338 | nsh_lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, |
| 339 | vlib_frame_t * from_frame) |
| 340 | { |
| 341 | u32 n_left_from, next_index, *from, *to_next; |
| 342 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 343 | |
| 344 | from = vlib_frame_vector_args (from_frame); |
| 345 | n_left_from = from_frame->n_vectors; |
| 346 | |
| 347 | next_index = node->cached_next_index; |
| 348 | |
| 349 | while (n_left_from > 0) |
| 350 | { |
| 351 | u32 n_left_to_next; |
| 352 | |
| 353 | vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
| 354 | |
| 355 | while (n_left_from > 0 && n_left_to_next > 0) |
| 356 | { |
| 357 | vlib_buffer_t *b0; |
| 358 | u32 bi0; |
| 359 | u32 *nsh0, next0; |
| 360 | const dpo_id_t *dpo0; |
| 361 | |
| 362 | bi0 = from[0]; |
| 363 | to_next[0] = bi0; |
| 364 | from += 1; |
| 365 | to_next += 1; |
| 366 | n_left_from -= 1; |
| 367 | n_left_to_next -= 1; |
| 368 | |
| 369 | b0 = vlib_get_buffer (vm, bi0); |
| 370 | nsh0 = vlib_buffer_get_current (b0); |
| 371 | |
| 372 | vnet_buffer (b0)->lisp.overlay_afi = LISP_AFI_LCAF; |
| 373 | |
| 374 | /* lookup SPI + SI (second word of the NSH header). |
| 375 | * NB: Load balancing was done by the control plane */ |
| 376 | dpo0 = lisp_nsh_fib_lookup (lgm, nsh0[1]); |
| 377 | |
| 378 | next0 = dpo0->dpoi_next_node; |
| 379 | vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; |
| 380 | |
| 381 | if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) |
| 382 | { |
| 383 | nsh_lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0, |
| 384 | sizeof (*tr)); |
| 385 | tr->dpo_index = dpo0->dpoi_index; |
| 386 | } |
| 387 | vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, |
| 388 | n_left_to_next, bi0, next0); |
| 389 | } |
| 390 | |
| 391 | vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
| 392 | } |
| 393 | |
| 394 | return from_frame->n_vectors; |
| 395 | } |
| 396 | |
| 397 | static u8 * |
| 398 | format_nsh_lisp_gpe_name (u8 * s, va_list * args) |
| 399 | { |
| 400 | u32 dev_instance = va_arg (*args, u32); |
| 401 | return format (s, "nsh_lisp_gpe%d", dev_instance); |
| 402 | } |
| 403 | |
| 404 | /* *INDENT-OFF* */ |
| 405 | VNET_DEVICE_CLASS (nsh_lisp_gpe_device_class,static) = { |
| 406 | .name = "NSH_LISP_GPE", |
| 407 | .format_device_name = format_nsh_lisp_gpe_name, |
| 408 | .format_tx_trace = format_nsh_lisp_gpe_tx_trace, |
| 409 | .tx_function = nsh_lisp_gpe_interface_tx, |
| 410 | }; |
| 411 | /* *INDENT-ON* */ |
| 412 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 413 | static vnet_hw_interface_t * |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 414 | lisp_gpe_create_iface (lisp_gpe_main_t * lgm, u32 vni, u32 dp_table, |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 415 | vnet_device_class_t * dev_class, |
| 416 | tunnel_lookup_t * tuns) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 417 | { |
| 418 | u32 flen; |
| 419 | u32 hw_if_index = ~0; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 420 | u8 *new_name; |
| 421 | vnet_hw_interface_t *hi; |
| 422 | vnet_main_t *vnm = lgm->vnet_main; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 423 | |
| 424 | /* create hw lisp_gpeX iface if needed, otherwise reuse existing */ |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 425 | flen = vec_len (lgm->free_tunnel_hw_if_indices); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 426 | if (flen > 0) |
| 427 | { |
| 428 | hw_if_index = lgm->free_tunnel_hw_if_indices[flen - 1]; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 429 | _vec_len (lgm->free_tunnel_hw_if_indices) -= 1; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 430 | |
| 431 | hi = vnet_get_hw_interface (vnm, hw_if_index); |
| 432 | |
| 433 | /* rename interface */ |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 434 | new_name = format (0, "%U", dev_class->format_device_name, vni); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 435 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 436 | vec_add1 (new_name, 0); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 437 | vnet_rename_interface (vnm, hw_if_index, (char *) new_name); |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 438 | vec_free (new_name); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 439 | |
| 440 | /* clear old stats of freed interface before reuse */ |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 441 | vnet_interface_main_t *im = &vnm->interface_main; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 442 | vnet_interface_counter_lock (im); |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 443 | vlib_zero_combined_counter (&im->combined_sw_if_counters |
| 444 | [VNET_INTERFACE_COUNTER_TX], |
| 445 | hi->sw_if_index); |
| 446 | vlib_zero_combined_counter (&im->combined_sw_if_counters |
| 447 | [VNET_INTERFACE_COUNTER_RX], |
| 448 | hi->sw_if_index); |
| 449 | vlib_zero_simple_counter (&im->sw_if_counters |
| 450 | [VNET_INTERFACE_COUNTER_DROP], |
| 451 | hi->sw_if_index); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 452 | vnet_interface_counter_unlock (im); |
| 453 | } |
| 454 | else |
| 455 | { |
| 456 | hw_if_index = vnet_register_interface (vnm, dev_class->index, vni, |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 457 | lisp_gpe_hw_class.index, 0); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 458 | hi = vnet_get_hw_interface (vnm, hw_if_index); |
| 459 | } |
| 460 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 461 | hash_set (tuns->hw_if_index_by_dp_table, dp_table, hw_if_index); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 462 | |
| 463 | /* set tunnel termination: post decap, packets are tagged as having been |
| 464 | * originated by lisp-gpe interface */ |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 465 | hash_set (tuns->sw_if_index_by_vni, vni, hi->sw_if_index); |
| 466 | hash_set (tuns->vni_by_sw_if_index, hi->sw_if_index, vni); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 467 | |
| 468 | return hi; |
| 469 | } |
| 470 | |
| 471 | static void |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 472 | lisp_gpe_remove_iface (lisp_gpe_main_t * lgm, u32 hi_index, u32 dp_table, |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 473 | tunnel_lookup_t * tuns) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 474 | { |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 475 | vnet_main_t *vnm = lgm->vnet_main; |
| 476 | vnet_hw_interface_t *hi; |
| 477 | uword *vnip; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 478 | |
| 479 | hi = vnet_get_hw_interface (vnm, hi_index); |
| 480 | |
| 481 | /* disable interface */ |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 482 | vnet_sw_interface_set_flags (vnm, hi->sw_if_index, 0 /* down */ ); |
| 483 | vnet_hw_interface_set_flags (vnm, hi->hw_if_index, 0 /* down */ ); |
| 484 | hash_unset (tuns->hw_if_index_by_dp_table, dp_table); |
| 485 | vec_add1 (lgm->free_tunnel_hw_if_indices, hi->hw_if_index); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 486 | |
| 487 | /* clean tunnel termination and vni to sw_if_index binding */ |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 488 | vnip = hash_get (tuns->vni_by_sw_if_index, hi->sw_if_index); |
Florin Coras | f7643fd | 2016-08-01 15:35:20 +0200 | [diff] [blame] | 489 | if (0 == vnip) |
| 490 | { |
| 491 | clib_warning ("No vni associated to interface %d", hi->sw_if_index); |
| 492 | return; |
| 493 | } |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 494 | hash_unset (tuns->sw_if_index_by_vni, vnip[0]); |
| 495 | hash_unset (tuns->vni_by_sw_if_index, hi->sw_if_index); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 496 | } |
| 497 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 498 | static void |
| 499 | lisp_gpe_iface_set_table (u32 sw_if_index, u32 table_id) |
| 500 | { |
| 501 | fib_node_index_t fib_index; |
| 502 | |
| 503 | fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id); |
| 504 | vec_validate (ip4_main.fib_index_by_sw_if_index, sw_if_index); |
| 505 | ip4_main.fib_index_by_sw_if_index[sw_if_index] = fib_index; |
| 506 | ip4_sw_interface_enable_disable (sw_if_index, 1); |
| 507 | |
| 508 | fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, table_id); |
| 509 | vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index); |
| 510 | ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index; |
| 511 | ip6_sw_interface_enable_disable (sw_if_index, 1); |
| 512 | } |
| 513 | |
| 514 | static void |
| 515 | lisp_gpe_tenant_del_default_routes (u32 table_id) |
| 516 | { |
| 517 | fib_protocol_t proto; |
| 518 | |
| 519 | FOR_EACH_FIB_IP_PROTOCOL (proto) |
| 520 | { |
| 521 | fib_prefix_t prefix = { |
| 522 | .fp_proto = proto, |
| 523 | }; |
| 524 | u32 fib_index; |
| 525 | |
| 526 | fib_index = fib_table_find (prefix.fp_proto, table_id); |
| 527 | fib_table_entry_special_remove (fib_index, &prefix, FIB_SOURCE_LISP); |
| 528 | fib_table_unlock (fib_index, prefix.fp_proto); |
| 529 | } |
| 530 | } |
| 531 | |
| 532 | static void |
| 533 | lisp_gpe_tenant_add_default_routes (u32 table_id) |
| 534 | { |
| 535 | fib_protocol_t proto; |
| 536 | |
| 537 | FOR_EACH_FIB_IP_PROTOCOL (proto) |
| 538 | { |
| 539 | fib_prefix_t prefix = { |
| 540 | .fp_proto = proto, |
| 541 | }; |
| 542 | u32 fib_index; |
| 543 | |
| 544 | /* |
| 545 | * Add a deafult route that results in a control plane punt DPO |
| 546 | */ |
| 547 | fib_index = fib_table_find_or_create_and_lock (prefix.fp_proto, table_id); |
| 548 | fib_table_entry_special_dpo_add (fib_index, &prefix, FIB_SOURCE_LISP, |
| 549 | FIB_ENTRY_FLAG_EXCLUSIVE, |
| 550 | lisp_cp_dpo_get (fib_proto_to_dpo |
| 551 | (proto))); |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | |
Florin Coras | ff0bf13 | 2016-09-05 19:30:35 +0200 | [diff] [blame] | 556 | /** |
| 557 | * @brief Add/del LISP-GPE L3 interface. |
| 558 | * |
| 559 | * Creates LISP-GPE interface, sets ingress arcs from lisp_gpeX_lookup, |
| 560 | * installs default routes that attract all traffic with no more specific |
| 561 | * routes to lgpe-ipx-lookup, set egress arcs to ipx-lookup, sets |
| 562 | * the interface in the right vrf and enables it. |
| 563 | * |
| 564 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 565 | * @param[in] a Parameters to create interface. |
| 566 | * |
| 567 | * @return number of vectors in frame. |
| 568 | */ |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 569 | u32 |
| 570 | lisp_gpe_add_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 table_id) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 571 | { |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 572 | vnet_main_t *vnm = lgm->vnet_main; |
| 573 | tunnel_lookup_t *l3_ifaces = &lgm->l3_ifaces; |
| 574 | vnet_hw_interface_t *hi; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 575 | uword *hip, *si; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 576 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 577 | hip = hash_get (l3_ifaces->hw_if_index_by_dp_table, table_id); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 578 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 579 | if (hip) |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 580 | { |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 581 | clib_warning ("vrf %d already mapped to a vni", table_id); |
| 582 | return ~0; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 583 | } |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 584 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 585 | si = hash_get (l3_ifaces->sw_if_index_by_vni, vni); |
| 586 | |
| 587 | if (si) |
| 588 | { |
| 589 | clib_warning ("Interface for vni %d already exists", vni); |
| 590 | } |
| 591 | |
| 592 | /* create lisp iface and populate tunnel tables */ |
| 593 | hi = lisp_gpe_create_iface (lgm, vni, table_id, |
| 594 | &lisp_gpe_device_class, l3_ifaces); |
| 595 | |
| 596 | /* insert default routes that point to lisp-cp lookup */ |
| 597 | lisp_gpe_iface_set_table (hi->sw_if_index, table_id); |
| 598 | lisp_gpe_tenant_add_default_routes (table_id); |
| 599 | |
| 600 | /* enable interface */ |
| 601 | vnet_sw_interface_set_flags (vnm, hi->sw_if_index, |
| 602 | VNET_SW_INTERFACE_FLAG_ADMIN_UP); |
| 603 | vnet_hw_interface_set_flags (vnm, hi->hw_if_index, |
| 604 | VNET_HW_INTERFACE_FLAG_LINK_UP); |
| 605 | |
| 606 | return (hi->sw_if_index); |
| 607 | } |
| 608 | |
| 609 | void |
| 610 | lisp_gpe_del_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 table_id) |
| 611 | { |
| 612 | vnet_main_t *vnm = lgm->vnet_main; |
| 613 | tunnel_lookup_t *l3_ifaces = &lgm->l3_ifaces; |
| 614 | vnet_hw_interface_t *hi; |
| 615 | uword *hip; |
| 616 | |
| 617 | hip = hash_get (l3_ifaces->hw_if_index_by_dp_table, table_id); |
| 618 | |
| 619 | if (hip == 0) |
| 620 | { |
| 621 | clib_warning ("The interface for vrf %d doesn't exist", table_id); |
| 622 | return; |
| 623 | } |
| 624 | |
| 625 | hi = vnet_get_hw_interface (vnm, hip[0]); |
| 626 | |
| 627 | lisp_gpe_remove_iface (lgm, hip[0], table_id, &lgm->l3_ifaces); |
| 628 | |
| 629 | /* unset default routes */ |
| 630 | ip4_sw_interface_enable_disable (hi->sw_if_index, 0); |
| 631 | ip6_sw_interface_enable_disable (hi->sw_if_index, 0); |
| 632 | lisp_gpe_tenant_del_default_routes (table_id); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 633 | } |
| 634 | |
Florin Coras | ff0bf13 | 2016-09-05 19:30:35 +0200 | [diff] [blame] | 635 | /** |
| 636 | * @brief Add/del LISP-GPE L2 interface. |
| 637 | * |
| 638 | * Creates LISP-GPE interface, sets it in L2 mode in the appropriate |
| 639 | * bridge domain, sets egress arcs and enables it. |
| 640 | * |
| 641 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 642 | * @param[in] a Parameters to create interface. |
| 643 | * |
| 644 | * @return number of vectors in frame. |
| 645 | */ |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 646 | u32 |
| 647 | lisp_gpe_add_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 648 | { |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 649 | vnet_main_t *vnm = lgm->vnet_main; |
| 650 | tunnel_lookup_t *l2_ifaces = &lgm->l2_ifaces; |
| 651 | vnet_hw_interface_t *hi; |
| 652 | uword *hip, *si; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 653 | u16 bd_index; |
| 654 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 655 | bd_index = bd_find_or_add_bd_index (&bd_main, bd_id); |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 656 | hip = hash_get (l2_ifaces->hw_if_index_by_dp_table, bd_index); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 657 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 658 | if (hip) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 659 | { |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 660 | clib_warning ("bridge domain %d already mapped to a vni", bd_id); |
| 661 | return ~0; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 662 | } |
| 663 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 664 | si = hash_get (l2_ifaces->sw_if_index_by_vni, vni); |
| 665 | if (si) |
| 666 | { |
| 667 | clib_warning ("Interface for vni %d already exists", vni); |
| 668 | return ~0; |
| 669 | } |
| 670 | |
| 671 | /* create lisp iface and populate tunnel tables */ |
| 672 | hi = lisp_gpe_create_iface (lgm, vni, bd_index, |
| 673 | &l2_lisp_gpe_device_class, &lgm->l2_ifaces); |
| 674 | |
| 675 | /* enable interface */ |
| 676 | vnet_sw_interface_set_flags (vnm, hi->sw_if_index, |
| 677 | VNET_SW_INTERFACE_FLAG_ADMIN_UP); |
| 678 | vnet_hw_interface_set_flags (vnm, hi->hw_if_index, |
| 679 | VNET_HW_INTERFACE_FLAG_LINK_UP); |
| 680 | |
| 681 | l2_arc_to_lb = vlib_node_add_named_next (vlib_get_main (), |
| 682 | hi->tx_node_index, |
| 683 | "l2-load-balance"); |
| 684 | |
| 685 | /* we're ready. add iface to l2 bridge domain */ |
| 686 | set_int_l2_mode (lgm->vlib_main, vnm, MODE_L2_BRIDGE, hi->sw_if_index, |
| 687 | bd_index, 0, 0, 0); |
| 688 | |
| 689 | return (hi->sw_if_index); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 690 | } |
| 691 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 692 | /** |
| 693 | * @brief Add/del LISP-GPE L2 interface. |
| 694 | * |
| 695 | * Creates LISP-GPE interface, sets it in L2 mode in the appropriate |
| 696 | * bridge domain, sets egress arcs and enables it. |
| 697 | * |
| 698 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 699 | * @param[in] a Parameters to create interface. |
| 700 | * |
| 701 | * @return number of vectors in frame. |
| 702 | */ |
| 703 | void |
| 704 | lisp_gpe_del_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 705 | { |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 706 | tunnel_lookup_t *l2_ifaces = &lgm->l2_ifaces; |
| 707 | u16 bd_index; |
| 708 | uword *hip; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 709 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 710 | bd_index = bd_find_or_add_bd_index (&bd_main, bd_id); |
| 711 | hip = hash_get (l2_ifaces->hw_if_index_by_dp_table, bd_index); |
| 712 | |
| 713 | if (hip == 0) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 714 | { |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 715 | clib_warning ("The interface for bridge domain %d doesn't exist", |
| 716 | bd_id); |
| 717 | return; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 718 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 719 | lisp_gpe_remove_iface (lgm, hip[0], bd_index, &lgm->l2_ifaces); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 720 | } |
| 721 | |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 722 | /** |
| 723 | * @brief Add LISP-GPE NSH interface. |
| 724 | * |
| 725 | * Creates LISP-GPE interface, sets it in L3 mode. |
| 726 | * |
| 727 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 728 | * @param[in] a Parameters to create interface. |
| 729 | * |
| 730 | * @return sw_if_index. |
| 731 | */ |
| 732 | u32 |
| 733 | lisp_gpe_add_nsh_iface (lisp_gpe_main_t * lgm) |
| 734 | { |
| 735 | vnet_main_t *vnm = lgm->vnet_main; |
| 736 | tunnel_lookup_t *nsh_ifaces = &lgm->nsh_ifaces; |
| 737 | vnet_hw_interface_t *hi; |
| 738 | uword *hip, *si; |
| 739 | |
| 740 | hip = hash_get (nsh_ifaces->hw_if_index_by_dp_table, 0); |
| 741 | |
| 742 | if (hip) |
| 743 | { |
| 744 | clib_warning ("NSH interface 0 already exists"); |
| 745 | return ~0; |
| 746 | } |
| 747 | |
| 748 | si = hash_get (nsh_ifaces->sw_if_index_by_vni, 0); |
| 749 | if (si) |
| 750 | { |
| 751 | clib_warning ("NSH interface already exists"); |
| 752 | return ~0; |
| 753 | } |
| 754 | |
| 755 | /* create lisp iface and populate tunnel tables */ |
| 756 | hi = lisp_gpe_create_iface (lgm, 0, 0, |
| 757 | &nsh_lisp_gpe_device_class, &lgm->nsh_ifaces); |
| 758 | |
| 759 | /* enable interface */ |
| 760 | vnet_sw_interface_set_flags (vnm, hi->sw_if_index, |
| 761 | VNET_SW_INTERFACE_FLAG_ADMIN_UP); |
| 762 | vnet_hw_interface_set_flags (vnm, hi->hw_if_index, |
| 763 | VNET_HW_INTERFACE_FLAG_LINK_UP); |
| 764 | |
| 765 | return (hi->sw_if_index); |
| 766 | } |
| 767 | |
| 768 | /** |
| 769 | * @brief Del LISP-GPE NSH interface. |
| 770 | * |
| 771 | */ |
| 772 | void |
| 773 | lisp_gpe_del_nsh_iface (lisp_gpe_main_t * lgm) |
| 774 | { |
| 775 | tunnel_lookup_t *nsh_ifaces = &lgm->nsh_ifaces; |
| 776 | uword *hip; |
| 777 | |
| 778 | hip = hash_get (nsh_ifaces->hw_if_index_by_dp_table, 0); |
| 779 | |
| 780 | if (hip == 0) |
| 781 | { |
| 782 | clib_warning ("The NSH 0 interface doesn't exist"); |
| 783 | return; |
| 784 | } |
| 785 | lisp_gpe_remove_iface (lgm, hip[0], 0, &lgm->nsh_ifaces); |
| 786 | } |
| 787 | |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 788 | static clib_error_t * |
| 789 | lisp_gpe_add_del_iface_command_fn (vlib_main_t * vm, unformat_input_t * input, |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 790 | vlib_cli_command_t * cmd) |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 791 | { |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 792 | unformat_input_t _line_input, *line_input = &_line_input; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 793 | u8 is_add = 1; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 794 | u32 table_id, vni, bd_id; |
| 795 | u8 vni_is_set = 0, vrf_is_set = 0, bd_index_is_set = 0; |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 796 | u8 nsh_iface = 0; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 797 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 798 | if (vnet_lisp_gpe_enable_disable_status () == 0) |
| 799 | { |
| 800 | return clib_error_return (0, "LISP is disabled"); |
| 801 | } |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 802 | |
| 803 | /* Get a line of input. */ |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 804 | if (!unformat_user (input, unformat_line_input, line_input)) |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 805 | return 0; |
| 806 | |
| 807 | while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) |
| 808 | { |
| 809 | if (unformat (line_input, "add")) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 810 | is_add = 1; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 811 | else if (unformat (line_input, "del")) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 812 | is_add = 0; |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 813 | else if (unformat (line_input, "vrf %d", &table_id)) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 814 | { |
| 815 | vrf_is_set = 1; |
| 816 | } |
Florin Coras | 69ae187 | 2016-07-19 11:52:35 +0200 | [diff] [blame] | 817 | else if (unformat (line_input, "vni %d", &vni)) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 818 | { |
| 819 | vni_is_set = 1; |
| 820 | } |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 821 | else if (unformat (line_input, "bd %d", &bd_id)) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 822 | { |
| 823 | bd_index_is_set = 1; |
| 824 | } |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 825 | else if (unformat (line_input, "nsh")) |
| 826 | { |
| 827 | nsh_iface = 1; |
| 828 | } |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 829 | else |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 830 | { |
| 831 | return clib_error_return (0, "parse error: '%U'", |
| 832 | format_unformat_error, line_input); |
| 833 | } |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 834 | } |
| 835 | |
Florin Coras | 6085e16 | 2017-02-15 14:16:26 -0800 | [diff] [blame] | 836 | if (nsh_iface) |
| 837 | { |
| 838 | if (is_add) |
| 839 | { |
| 840 | if (~0 == lisp_gpe_add_nsh_iface (&lisp_gpe_main)) |
| 841 | { |
| 842 | return clib_error_return (0, "NSH interface not created"); |
| 843 | } |
| 844 | } |
| 845 | else |
| 846 | { |
| 847 | lisp_gpe_del_nsh_iface (&lisp_gpe_main); |
| 848 | } |
| 849 | return (NULL); |
| 850 | } |
| 851 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 852 | if (vrf_is_set && bd_index_is_set) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 853 | return clib_error_return (0, |
| 854 | "Cannot set both vrf and brdige domain index!"); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 855 | |
| 856 | if (!vni_is_set) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 857 | return clib_error_return (0, "vni must be set!"); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 858 | |
| 859 | if (!vrf_is_set && !bd_index_is_set) |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 860 | return clib_error_return (0, "vrf or bridge domain index must be set!"); |
Florin Coras | 69ae187 | 2016-07-19 11:52:35 +0200 | [diff] [blame] | 861 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 862 | if (bd_index_is_set) |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 863 | { |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 864 | if (is_add) |
| 865 | { |
| 866 | if (~0 == lisp_gpe_tenant_l2_iface_add_or_lock (vni, bd_id)) |
| 867 | return clib_error_return (0, "L2 interface not created"); |
| 868 | } |
| 869 | else |
| 870 | lisp_gpe_tenant_l2_iface_unlock (vni); |
| 871 | } |
| 872 | else |
| 873 | { |
| 874 | if (is_add) |
| 875 | { |
| 876 | if (~0 == lisp_gpe_tenant_l3_iface_add_or_lock (vni, table_id)) |
| 877 | return clib_error_return (0, "L3 interface not created"); |
| 878 | } |
| 879 | else |
| 880 | lisp_gpe_tenant_l3_iface_unlock (vni); |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 881 | } |
| 882 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 883 | return (NULL); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 884 | } |
| 885 | |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 886 | /* *INDENT-OFF* */ |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 887 | VLIB_CLI_COMMAND (add_del_lisp_gpe_iface_command, static) = { |
Filip Tehlar | 82786c4 | 2017-02-20 15:20:37 +0100 | [diff] [blame^] | 888 | .path = "gpe iface", |
| 889 | .short_help = "gpe iface add/del vni <vni> vrf <vrf>", |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 890 | .function = lisp_gpe_add_del_iface_command_fn, |
| 891 | }; |
Florin Coras | 220beac | 2016-08-16 23:04:00 +0200 | [diff] [blame] | 892 | /* *INDENT-ON* */ |
| 893 | |
| 894 | /* |
| 895 | * fd.io coding-style-patch-verification: ON |
| 896 | * |
| 897 | * Local Variables: |
| 898 | * eval: (c-set-style "gnu") |
| 899 | * End: |
| 900 | */ |