Line data Source code
1 : /*
2 : *------------------------------------------------------------------
3 : * Copyright (c) 2017 Intel and/or its affiliates.
4 : * Licensed under the Apache License, Version 2.0 (the "License");
5 : * you may not use this file except in compliance with the License.
6 : * You may obtain a copy of the License at:
7 : *
8 : * http://www.apache.org/licenses/LICENSE-2.0
9 : *
10 : * Unless required by applicable law or agreed to in writing, software
11 : * distributed under the License is distributed on an "AS IS" BASIS,
12 : * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 : * See the License for the specific language governing permissions and
14 : * limitations under the License.
15 : *------------------------------------------------------------------
16 : */
17 : #include <stdint.h>
18 : #include <net/if.h>
19 : #include <sys/ioctl.h>
20 : #include <inttypes.h>
21 :
22 : #include <vlib/vlib.h>
23 : #include <vlib/unix/unix.h>
24 : #include <vnet/ethernet/ethernet.h>
25 : #include <vnet/fib/fib_entry.h>
26 : #include <vnet/fib/fib_table.h>
27 : #include <vnet/dpo/interface_tx_dpo.h>
28 : #include <vnet/plugin/plugin.h>
29 : #include <vpp/app/version.h>
30 : #include <vnet/ppp/packet.h>
31 : #include <pppoe/pppoe.h>
32 : #include <vnet/adj/adj_midchain.h>
33 : #include <vnet/adj/adj_mcast.h>
34 :
35 : #include <vppinfra/hash.h>
36 : #include <vppinfra/bihash_template.c>
37 :
38 : pppoe_main_t pppoe_main;
39 :
40 : static fib_source_t pppoe_fib_src;
41 :
42 : u8 *
43 6 : format_pppoe_session (u8 * s, va_list * args)
44 : {
45 6 : pppoe_session_t *t = va_arg (*args, pppoe_session_t *);
46 6 : pppoe_main_t *pem = &pppoe_main;
47 :
48 6 : s = format (s, "[%d] sw-if-index %d client-ip %U session-id %d ",
49 6 : t - pem->sessions, t->sw_if_index,
50 : format_ip46_address, &t->client_ip, IP46_TYPE_ANY,
51 6 : t->session_id);
52 :
53 6 : s = format (s, "encap-if-index %d decap-fib-index %d\n",
54 : t->encap_if_index, t->decap_fib_index);
55 :
56 6 : s = format (s, " local-mac %U client-mac %U",
57 6 : format_ethernet_address, t->local_mac,
58 6 : format_ethernet_address, t->client_mac);
59 :
60 6 : return s;
61 : }
62 :
63 : static u8 *
64 12 : format_pppoe_name (u8 * s, va_list * args)
65 : {
66 12 : u32 dev_instance = va_arg (*args, u32);
67 12 : return format (s, "pppoe_session%d", dev_instance);
68 : }
69 :
70 : static clib_error_t *
71 16 : pppoe_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
72 : {
73 16 : u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
74 : VNET_HW_INTERFACE_FLAG_LINK_UP : 0;
75 16 : vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
76 :
77 16 : return /* no error */ 0;
78 : }
79 :
80 : /* *INDENT-OFF* */
81 4607 : VNET_DEVICE_CLASS (pppoe_device_class,static) = {
82 : .name = "PPPoE",
83 : .format_device_name = format_pppoe_name,
84 : .admin_up_down_function = pppoe_interface_admin_up_down,
85 : };
86 : /* *INDENT-ON* */
87 :
88 : static u8 *
89 0 : format_pppoe_header_with_length (u8 * s, va_list * args)
90 : {
91 0 : u32 dev_instance = va_arg (*args, u32);
92 0 : s = format (s, "unimplemented dev %u", dev_instance);
93 0 : return s;
94 : }
95 :
96 : static u8 *
97 8 : pppoe_build_rewrite (vnet_main_t * vnm,
98 : u32 sw_if_index,
99 : vnet_link_t link_type, const void *dst_address)
100 : {
101 8 : pppoe_main_t *pem = &pppoe_main;
102 : pppoe_session_t *t;
103 : vnet_hw_interface_t *hi;
104 : vnet_sw_interface_t *si;
105 : pppoe_header_t *pppoe;
106 : u32 session_id;
107 8 : u8 *rw = 0;
108 :
109 8 : session_id = pem->session_index_by_sw_if_index[sw_if_index];
110 8 : t = pool_elt_at_index (pem->sessions, session_id);
111 :
112 8 : int len = sizeof (pppoe_header_t) + sizeof (ethernet_header_t);
113 8 : si = vnet_get_sw_interface (vnm, t->encap_if_index);
114 8 : if (si->type == VNET_SW_INTERFACE_TYPE_SUB)
115 : {
116 0 : if (si->sub.eth.flags.one_tag == 1)
117 : {
118 0 : len += sizeof (ethernet_vlan_header_t);
119 : }
120 : }
121 :
122 8 : vec_validate_aligned (rw, len - 1, CLIB_CACHE_LINE_BYTES);
123 :
124 8 : ethernet_header_t *eth_hdr = (ethernet_header_t *) rw;
125 8 : eth_hdr->type = clib_host_to_net_u16 (ETHERNET_TYPE_PPPOE_SESSION);
126 8 : pppoe = (pppoe_header_t *) (eth_hdr + 1);
127 :
128 8 : if (si->type == VNET_SW_INTERFACE_TYPE_SUB)
129 : {
130 0 : if (si->sub.eth.flags.one_tag == 1)
131 : {
132 0 : eth_hdr->type = clib_host_to_net_u16 (ETHERNET_TYPE_VLAN);
133 0 : ethernet_vlan_header_t *vlan =
134 : (ethernet_vlan_header_t *) (eth_hdr + 1);
135 0 : vlan->type = clib_host_to_net_u16 (ETHERNET_TYPE_PPPOE_SESSION);
136 0 : vlan->priority_cfi_and_id =
137 0 : clib_host_to_net_u16 (si->sub.eth.outer_vlan_id);
138 0 : pppoe = (pppoe_header_t *) (vlan + 1);
139 : }
140 0 : si = vnet_get_sw_interface (vnm, si->sup_sw_if_index);
141 : }
142 :
143 : // set the right mac addresses
144 8 : hi = vnet_get_hw_interface (vnm, si->hw_if_index);
145 8 : clib_memcpy (eth_hdr->src_address, hi->hw_address, 6);
146 8 : clib_memcpy (eth_hdr->dst_address, t->client_mac, 6);
147 :
148 8 : pppoe->ver_type = PPPOE_VER_TYPE;
149 8 : pppoe->code = 0;
150 8 : pppoe->session_id = clib_host_to_net_u16 (t->session_id);
151 8 : pppoe->length = 0; /* To be filled in at run-time */
152 :
153 8 : switch (link_type)
154 : {
155 8 : case VNET_LINK_IP4:
156 8 : pppoe->ppp_proto = clib_host_to_net_u16 (PPP_PROTOCOL_ip4);
157 8 : break;
158 0 : case VNET_LINK_IP6:
159 0 : pppoe->ppp_proto = clib_host_to_net_u16 (PPP_PROTOCOL_ip6);
160 0 : break;
161 0 : default:
162 0 : break;
163 : }
164 :
165 8 : return rw;
166 : }
167 :
168 : /**
169 : * @brief Fixup the adj rewrite post encap. Insert the packet's length
170 : */
171 : static void
172 67 : pppoe_fixup (vlib_main_t * vm,
173 : const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
174 : {
175 : //const pppoe_session_t *t;
176 : pppoe_header_t *pppoe0;
177 67 : uword len = (uword) data;
178 :
179 : /* update the rewrite string */
180 67 : pppoe0 = vlib_buffer_get_current (b0) + len;
181 :
182 67 : pppoe0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
183 : - sizeof (pppoe_header_t)
184 67 : + sizeof (pppoe0->ppp_proto) - len);
185 67 : }
186 :
187 : static void
188 8 : pppoe_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
189 : {
190 8 : pppoe_main_t *pem = &pppoe_main;
191 8 : dpo_id_t dpo = DPO_INVALID;
192 : ip_adjacency_t *adj;
193 : pppoe_session_t *t;
194 : vnet_sw_interface_t *si;
195 : u32 session_id;
196 :
197 8 : ASSERT (ADJ_INDEX_INVALID != ai);
198 :
199 8 : adj = adj_get (ai);
200 8 : session_id = pem->session_index_by_sw_if_index[sw_if_index];
201 8 : t = pool_elt_at_index (pem->sessions, session_id);
202 :
203 8 : uword len = sizeof (ethernet_header_t);
204 :
205 8 : si = vnet_get_sw_interface (vnm, t->encap_if_index);
206 8 : if (si->type == VNET_SW_INTERFACE_TYPE_SUB)
207 : {
208 0 : if (si->sub.eth.flags.one_tag == 1)
209 : {
210 0 : len += sizeof (ethernet_vlan_header_t);
211 : }
212 : }
213 :
214 8 : switch (adj->lookup_next_index)
215 : {
216 8 : case IP_LOOKUP_NEXT_ARP:
217 : case IP_LOOKUP_NEXT_GLEAN:
218 : case IP_LOOKUP_NEXT_BCAST:
219 8 : adj_nbr_midchain_update_rewrite (ai, pppoe_fixup, (void *) len,
220 : ADJ_FLAG_NONE,
221 : pppoe_build_rewrite (vnm,
222 : sw_if_index,
223 8 : adj->ia_link,
224 : NULL));
225 8 : break;
226 0 : case IP_LOOKUP_NEXT_MCAST:
227 : /*
228 : * Construct a partial rewrite from the known ethernet mcast dest MAC
229 : * There's no MAC fixup, so the last 2 parameters are 0
230 : */
231 0 : adj_mcast_midchain_update_rewrite (ai, pppoe_fixup, (void *) len,
232 : ADJ_FLAG_NONE,
233 : pppoe_build_rewrite (vnm,
234 : sw_if_index,
235 0 : adj->ia_link,
236 : NULL), 0, 0);
237 0 : break;
238 :
239 0 : case IP_LOOKUP_NEXT_DROP:
240 : case IP_LOOKUP_NEXT_PUNT:
241 : case IP_LOOKUP_NEXT_LOCAL:
242 : case IP_LOOKUP_NEXT_REWRITE:
243 : case IP_LOOKUP_NEXT_MIDCHAIN:
244 : case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
245 : case IP_LOOKUP_NEXT_ICMP_ERROR:
246 : case IP_LOOKUP_N_NEXT:
247 0 : ASSERT (0);
248 0 : break;
249 : }
250 :
251 8 : interface_tx_dpo_add_or_lock (vnet_link_to_dpo_proto (adj->ia_link),
252 : t->encap_if_index, &dpo);
253 :
254 8 : adj_nbr_midchain_stack (ai, &dpo);
255 :
256 8 : dpo_reset (&dpo);
257 8 : }
258 :
259 : /* *INDENT-OFF* */
260 2303 : VNET_HW_INTERFACE_CLASS (pppoe_hw_class) =
261 : {
262 : .name = "PPPoE",
263 : .format_header = format_pppoe_header_with_length,
264 : .build_rewrite = pppoe_build_rewrite,
265 : .update_adjacency = pppoe_update_adj,
266 : .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
267 : };
268 : /* *INDENT-ON* */
269 :
270 : #define foreach_copy_field \
271 : _(session_id) \
272 : _(encap_if_index) \
273 : _(decap_fib_index) \
274 : _(client_ip)
275 :
276 : static bool
277 8 : pppoe_decap_next_is_valid (pppoe_main_t * pem, u32 is_ip6,
278 : u32 decap_fib_index)
279 : {
280 8 : vlib_main_t *vm = pem->vlib_main;
281 8 : u32 input_idx = (!is_ip6) ? ip4_input_node.index : ip6_input_node.index;
282 8 : vlib_node_runtime_t *r = vlib_node_get_runtime (vm, input_idx);
283 :
284 8 : return decap_fib_index < r->n_next_nodes;
285 : }
286 :
287 18 : int vnet_pppoe_add_del_session
288 : (vnet_pppoe_add_del_session_args_t * a, u32 * sw_if_indexp)
289 : {
290 18 : pppoe_main_t *pem = &pppoe_main;
291 18 : pppoe_session_t *t = 0;
292 18 : vnet_main_t *vnm = pem->vnet_main;
293 18 : u32 hw_if_index = ~0;
294 18 : u32 sw_if_index = ~0;
295 18 : u32 is_ip6 = a->is_ip6;
296 : pppoe_entry_key_t cached_key;
297 : pppoe_entry_result_t cached_result;
298 : u32 bucket;
299 : pppoe_entry_key_t key;
300 : pppoe_entry_result_t result;
301 : vnet_hw_interface_t *hi;
302 : vnet_sw_interface_t *si;
303 : fib_prefix_t pfx;
304 :
305 18 : cached_key.raw = ~0;
306 18 : cached_result.raw = ~0; /* warning be gone */
307 18 : clib_memset (&pfx, 0, sizeof (pfx));
308 :
309 18 : if (!is_ip6)
310 : {
311 18 : pfx.fp_addr.ip4.as_u32 = a->client_ip.ip4.as_u32;
312 18 : pfx.fp_len = 32;
313 18 : pfx.fp_proto = FIB_PROTOCOL_IP4;
314 : }
315 : else
316 : {
317 0 : pfx.fp_addr.ip6.as_u64[0] = a->client_ip.ip6.as_u64[0];
318 0 : pfx.fp_addr.ip6.as_u64[1] = a->client_ip.ip6.as_u64[1];
319 0 : pfx.fp_len = 128;
320 0 : pfx.fp_proto = FIB_PROTOCOL_IP6;
321 : }
322 :
323 : /* Get encap_if_index and local mac address from link_table */
324 18 : pppoe_lookup_1 (&pem->link_table, &cached_key, &cached_result,
325 18 : a->client_mac, 0, &key, &bucket, &result);
326 18 : a->encap_if_index = result.fields.sw_if_index;
327 :
328 18 : if (a->encap_if_index == ~0)
329 0 : return VNET_API_ERROR_INVALID_SW_IF_INDEX;
330 :
331 18 : si = vnet_get_sw_interface (vnm, a->encap_if_index);
332 18 : hi = vnet_get_hw_interface (vnm, si->hw_if_index);
333 :
334 : /* lookup session_table */
335 18 : pppoe_lookup_1 (&pem->session_table, &cached_key, &cached_result,
336 18 : a->client_mac, clib_host_to_net_u16 (a->session_id),
337 : &key, &bucket, &result);
338 :
339 : /* learn client session */
340 18 : pppoe_learn_process (&pem->session_table, a->encap_if_index,
341 : &key, &cached_key, &bucket, &result);
342 :
343 18 : if (a->is_add)
344 : {
345 : /* adding a session: session must not already exist */
346 9 : if (result.fields.session_index != ~0)
347 1 : return VNET_API_ERROR_TUNNEL_EXIST;
348 :
349 : /*if not set explicitly, default to ip4 */
350 8 : if (!pppoe_decap_next_is_valid (pem, is_ip6, a->decap_fib_index))
351 0 : return VNET_API_ERROR_INVALID_DECAP_NEXT;
352 :
353 8 : pool_get_aligned (pem->sessions, t, CLIB_CACHE_LINE_BYTES);
354 8 : clib_memset (t, 0, sizeof (*t));
355 :
356 8 : clib_memcpy (t->local_mac, hi->hw_address, vec_len (hi->hw_address));
357 :
358 : /* copy from arg structure */
359 : #define _(x) t->x = a->x;
360 8 : foreach_copy_field;
361 : #undef _
362 :
363 8 : clib_memcpy (t->client_mac, a->client_mac, 6);
364 :
365 : /* update pppoe fib with session_index */
366 8 : result.fields.session_index = t - pem->sessions;
367 8 : pppoe_update_1 (&pem->session_table,
368 8 : a->client_mac, clib_host_to_net_u16 (a->session_id),
369 : &key, &bucket, &result);
370 :
371 : vnet_hw_interface_t *hi;
372 8 : if (vec_len (pem->free_pppoe_session_hw_if_indices) > 0)
373 6 : {
374 6 : vnet_interface_main_t *im = &vnm->interface_main;
375 12 : hw_if_index = pem->free_pppoe_session_hw_if_indices
376 6 : [vec_len (pem->free_pppoe_session_hw_if_indices) - 1];
377 6 : vec_dec_len (pem->free_pppoe_session_hw_if_indices, 1);
378 :
379 6 : hi = vnet_get_hw_interface (vnm, hw_if_index);
380 6 : hi->dev_instance = t - pem->sessions;
381 6 : hi->hw_instance = hi->dev_instance;
382 :
383 : /* clear old stats of freed session before reuse */
384 6 : sw_if_index = hi->sw_if_index;
385 6 : vnet_interface_counter_lock (im);
386 6 : vlib_zero_combined_counter
387 6 : (&im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_TX],
388 : sw_if_index);
389 6 : vlib_zero_combined_counter (&im->combined_sw_if_counters
390 : [VNET_INTERFACE_COUNTER_RX],
391 : sw_if_index);
392 6 : vlib_zero_simple_counter (&im->sw_if_counters
393 : [VNET_INTERFACE_COUNTER_DROP],
394 : sw_if_index);
395 6 : vnet_interface_counter_unlock (im);
396 : }
397 : else
398 : {
399 2 : hw_if_index = vnet_register_interface
400 2 : (vnm, pppoe_device_class.index, t - pem->sessions,
401 2 : pppoe_hw_class.index, t - pem->sessions);
402 2 : hi = vnet_get_hw_interface (vnm, hw_if_index);
403 : }
404 :
405 8 : t->hw_if_index = hw_if_index;
406 8 : t->sw_if_index = sw_if_index = hi->sw_if_index;
407 :
408 14 : vec_validate_init_empty (pem->session_index_by_sw_if_index, sw_if_index,
409 : ~0);
410 8 : pem->session_index_by_sw_if_index[sw_if_index] = t - pem->sessions;
411 :
412 8 : vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
413 8 : si->flags &= ~VNET_SW_INTERFACE_FLAG_HIDDEN;
414 8 : vnet_sw_interface_set_flags (vnm, sw_if_index,
415 : VNET_SW_INTERFACE_FLAG_ADMIN_UP);
416 8 : vnet_set_interface_l3_output_node (vnm->vlib_main, sw_if_index,
417 : (u8 *) "tunnel-output");
418 :
419 : /* add reverse route for client ip */
420 8 : fib_table_entry_path_add (a->decap_fib_index, &pfx,
421 : pppoe_fib_src, FIB_ENTRY_FLAG_NONE,
422 8 : fib_proto_to_dpo (pfx.fp_proto),
423 : &pfx.fp_addr, sw_if_index, ~0,
424 : 1, NULL, FIB_ROUTE_PATH_FLAG_NONE);
425 :
426 : }
427 : else
428 : {
429 : /* deleting a session: session must exist */
430 9 : if (result.fields.session_index == ~0)
431 1 : return VNET_API_ERROR_NO_SUCH_ENTRY;
432 :
433 8 : t = pool_elt_at_index (pem->sessions, result.fields.session_index);
434 8 : sw_if_index = t->sw_if_index;
435 :
436 8 : vnet_reset_interface_l3_output_node (vnm->vlib_main, sw_if_index);
437 8 : vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */ );
438 8 : vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, t->sw_if_index);
439 8 : si->flags |= VNET_SW_INTERFACE_FLAG_HIDDEN;
440 :
441 8 : vec_add1 (pem->free_pppoe_session_hw_if_indices, t->hw_if_index);
442 :
443 8 : pem->session_index_by_sw_if_index[t->sw_if_index] = ~0;
444 :
445 : /* update pppoe fib with session_inde=~0x */
446 8 : result.fields.session_index = ~0;
447 8 : pppoe_update_1 (&pem->session_table,
448 8 : a->client_mac, clib_host_to_net_u16 (a->session_id),
449 : &key, &bucket, &result);
450 :
451 :
452 : /* delete reverse route for client ip */
453 8 : fib_table_entry_path_remove (a->decap_fib_index, &pfx,
454 : pppoe_fib_src,
455 8 : fib_proto_to_dpo (pfx.fp_proto),
456 : &pfx.fp_addr,
457 : sw_if_index, ~0, 1,
458 : FIB_ROUTE_PATH_FLAG_NONE);
459 :
460 8 : pool_put (pem->sessions, t);
461 : }
462 :
463 16 : if (sw_if_indexp)
464 16 : *sw_if_indexp = sw_if_index;
465 :
466 16 : return 0;
467 : }
468 :
469 : static clib_error_t *
470 0 : pppoe_add_del_session_command_fn (vlib_main_t * vm,
471 : unformat_input_t * input,
472 : vlib_cli_command_t * cmd)
473 : {
474 0 : unformat_input_t _line_input, *line_input = &_line_input;
475 0 : u16 session_id = 0;
476 : ip46_address_t client_ip;
477 0 : u8 is_add = 1;
478 0 : u8 client_ip_set = 0;
479 0 : u8 ipv4_set = 0;
480 0 : u8 ipv6_set = 0;
481 0 : u32 encap_if_index = 0;
482 0 : u32 decap_fib_index = 0;
483 0 : u8 client_mac[6] = { 0 };
484 0 : u8 client_mac_set = 0;
485 : int rv;
486 : u32 tmp;
487 0 : vnet_pppoe_add_del_session_args_t _a, *a = &_a;
488 : u32 session_sw_if_index;
489 0 : clib_error_t *error = NULL;
490 :
491 : /* Cant "universally zero init" (={0}) due to GCC bug 53119 */
492 0 : clib_memset (&client_ip, 0, sizeof client_ip);
493 :
494 : /* Get a line of input. */
495 0 : if (!unformat_user (input, unformat_line_input, line_input))
496 0 : return 0;
497 :
498 0 : while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
499 : {
500 0 : if (unformat (line_input, "del"))
501 : {
502 0 : is_add = 0;
503 : }
504 0 : else if (unformat (line_input, "session-id %d", &session_id))
505 : ;
506 0 : else if (unformat (line_input, "client-ip %U",
507 : unformat_ip4_address, &client_ip.ip4))
508 : {
509 0 : client_ip_set = 1;
510 0 : ipv4_set = 1;
511 : }
512 0 : else if (unformat (line_input, "client-ip %U",
513 : unformat_ip6_address, &client_ip.ip6))
514 : {
515 0 : client_ip_set = 1;
516 0 : ipv6_set = 1;
517 : }
518 0 : else if (unformat (line_input, "decap-vrf-id %d", &tmp))
519 : {
520 0 : if (ipv6_set)
521 0 : decap_fib_index = fib_table_find (FIB_PROTOCOL_IP6, tmp);
522 : else
523 0 : decap_fib_index = fib_table_find (FIB_PROTOCOL_IP4, tmp);
524 :
525 0 : if (decap_fib_index == ~0)
526 : {
527 : error =
528 0 : clib_error_return (0, "nonexistent decap fib id %d", tmp);
529 0 : goto done;
530 : }
531 : }
532 : else
533 0 : if (unformat
534 : (line_input, "client-mac %U", unformat_ethernet_address,
535 : client_mac))
536 0 : client_mac_set = 1;
537 : else
538 : {
539 0 : error = clib_error_return (0, "parse error: '%U'",
540 : format_unformat_error, line_input);
541 0 : goto done;
542 : }
543 : }
544 :
545 0 : if (client_ip_set == 0)
546 : {
547 : error =
548 0 : clib_error_return (0, "session client ip address not specified");
549 0 : goto done;
550 : }
551 :
552 0 : if (ipv4_set && ipv6_set)
553 : {
554 0 : error = clib_error_return (0, "both IPv4 and IPv6 addresses specified");
555 0 : goto done;
556 : }
557 :
558 0 : if (client_mac_set == 0)
559 : {
560 0 : error = clib_error_return (0, "session client mac not specified");
561 0 : goto done;
562 : }
563 :
564 0 : clib_memset (a, 0, sizeof (*a));
565 :
566 0 : a->is_add = is_add;
567 0 : a->is_ip6 = ipv6_set;
568 :
569 : #define _(x) a->x = x;
570 0 : foreach_copy_field;
571 : #undef _
572 :
573 0 : clib_memcpy (a->client_mac, client_mac, 6);
574 :
575 0 : rv = vnet_pppoe_add_del_session (a, &session_sw_if_index);
576 :
577 0 : switch (rv)
578 : {
579 0 : case 0:
580 0 : if (is_add)
581 0 : vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name,
582 : vnet_get_main (), session_sw_if_index);
583 0 : break;
584 :
585 0 : case VNET_API_ERROR_TUNNEL_EXIST:
586 0 : error = clib_error_return (0, "session already exists...");
587 0 : goto done;
588 :
589 0 : case VNET_API_ERROR_NO_SUCH_ENTRY:
590 0 : error = clib_error_return (0, "session does not exist...");
591 0 : goto done;
592 :
593 0 : default:
594 0 : error = clib_error_return
595 : (0, "vnet_pppoe_add_del_session returned %d", rv);
596 0 : goto done;
597 : }
598 :
599 0 : done:
600 0 : unformat_free (line_input);
601 :
602 0 : return error;
603 : }
604 :
605 : /*?
606 : * Add or delete a PPPoE Session.
607 : *
608 : * @cliexpar
609 : * Example of how to create a PPPoE Session:
610 : * @cliexcmd{create pppoe session client-ip 10.0.3.1 session-id 13
611 : * client-mac 00:01:02:03:04:05 }
612 : * Example of how to delete a PPPoE Session:
613 : * @cliexcmd{create pppoe session client-ip 10.0.3.1 session-id 13
614 : * client-mac 00:01:02:03:04:05 del }
615 : ?*/
616 : /* *INDENT-OFF* */
617 47957 : VLIB_CLI_COMMAND (create_pppoe_session_command, static) = {
618 : .path = "create pppoe session",
619 : .short_help =
620 : "create pppoe session client-ip <client-ip> session-id <nn>"
621 : " client-mac <client-mac> [decap-vrf-id <nn>] [del]",
622 : .function = pppoe_add_del_session_command_fn,
623 : };
624 : /* *INDENT-ON* */
625 :
626 : /* *INDENT-OFF* */
627 : static clib_error_t *
628 10 : show_pppoe_session_command_fn (vlib_main_t * vm,
629 : unformat_input_t * input,
630 : vlib_cli_command_t * cmd)
631 : {
632 10 : pppoe_main_t *pem = &pppoe_main;
633 : pppoe_session_t *t;
634 :
635 10 : if (pool_elts (pem->sessions) == 0)
636 6 : vlib_cli_output (vm, "No pppoe sessions configured...");
637 :
638 16 : pool_foreach (t, pem->sessions)
639 : {
640 6 : vlib_cli_output (vm, "%U",format_pppoe_session, t);
641 : }
642 :
643 10 : return 0;
644 : }
645 : /* *INDENT-ON* */
646 :
647 : /*?
648 : * Display all the PPPoE Session entries.
649 : *
650 : * @cliexpar
651 : * Example of how to display the PPPoE Session entries:
652 : * @cliexstart{show pppoe session}
653 : * [0] client-ip 10.0.3.1 session_id 13 encap-if-index 0 decap-vrf-id 13 sw_if_index 5
654 : * local-mac a0:b0:c0:d0:e0:f0 client-mac 00:01:02:03:04:05
655 : * @cliexend
656 : ?*/
657 : /* *INDENT-OFF* */
658 47957 : VLIB_CLI_COMMAND (show_pppoe_session_command, static) = {
659 : .path = "show pppoe session",
660 : .short_help = "show pppoe session",
661 : .function = show_pppoe_session_command_fn,
662 : };
663 : /* *INDENT-ON* */
664 :
665 : typedef struct pppoe_show_walk_ctx_t_
666 : {
667 : vlib_main_t *vm;
668 : u8 first_entry;
669 : u32 total_entries;
670 : } pppoe_show_walk_ctx_t;
671 :
672 : static int
673 17 : pppoe_show_walk_cb (BVT (clib_bihash_kv) * kvp, void *arg)
674 : {
675 17 : pppoe_show_walk_ctx_t *ctx = arg;
676 : pppoe_entry_result_t result;
677 : pppoe_entry_key_t key;
678 :
679 17 : if (ctx->first_entry)
680 : {
681 10 : ctx->first_entry = 0;
682 10 : vlib_cli_output (ctx->vm,
683 : "%=19s%=12s%=13s%=14s",
684 : "Mac-Address", "session_id", "sw_if_index",
685 : "session_index");
686 : }
687 :
688 17 : key.raw = kvp->key;
689 17 : result.raw = kvp->value;
690 :
691 17 : vlib_cli_output (ctx->vm,
692 : "%=19U%=12d%=13d%=14d",
693 : format_ethernet_address, key.fields.mac,
694 17 : clib_net_to_host_u16 (key.fields.session_id),
695 : result.fields.sw_if_index == ~0
696 : ? -1 : result.fields.sw_if_index,
697 : result.fields.session_index == ~0
698 : ? -1 : result.fields.session_index);
699 17 : ctx->total_entries++;
700 :
701 17 : return (BIHASH_WALK_CONTINUE);
702 : }
703 :
704 : /** Display the contents of the PPPoE Fib. */
705 : static clib_error_t *
706 10 : show_pppoe_fib_command_fn (vlib_main_t * vm,
707 : unformat_input_t * input, vlib_cli_command_t * cmd)
708 : {
709 10 : pppoe_main_t *pem = &pppoe_main;
710 10 : pppoe_show_walk_ctx_t ctx = {
711 : .first_entry = 1,
712 : .vm = vm,
713 : };
714 :
715 10 : BV (clib_bihash_foreach_key_value_pair)
716 : (&pem->session_table, pppoe_show_walk_cb, &ctx);
717 :
718 10 : if (ctx.total_entries == 0)
719 0 : vlib_cli_output (vm, "no pppoe fib entries");
720 : else
721 10 : vlib_cli_output (vm, "%lld pppoe fib entries", ctx.total_entries);
722 :
723 10 : return 0;
724 : }
725 :
726 : /*?
727 : * This command displays the MAC Address entries of the PPPoE FIB table.
728 : * Output can be filtered to just get the number of MAC Addresses or display
729 : * each MAC Address.
730 : *
731 : * @cliexpar
732 : * Example of how to display the number of MAC Address entries in the PPPoE
733 : * FIB table:
734 : * @cliexstart{show pppoe fib}
735 : * Mac Address session_id Interface sw_if_index session_index
736 : * 52:54:00:53:18:33 1 GigabitEthernet0/8/0 2 0
737 : * 52:54:00:53:18:55 2 GigabitEthernet0/8/1 3 1
738 : * @cliexend
739 : ?*/
740 : /* *INDENT-OFF* */
741 47957 : VLIB_CLI_COMMAND (show_pppoe_fib_command, static) = {
742 : .path = "show pppoe fib",
743 : .short_help = "show pppoe fib",
744 : .function = show_pppoe_fib_command_fn,
745 : };
746 : /* *INDENT-ON* */
747 :
748 : clib_error_t *
749 575 : pppoe_init (vlib_main_t * vm)
750 : {
751 575 : pppoe_main_t *pem = &pppoe_main;
752 :
753 575 : pem->vnet_main = vnet_get_main ();
754 575 : pem->vlib_main = vm;
755 :
756 : /* Create the hash table */
757 575 : BV (clib_bihash_init) (&pem->link_table, "pppoe link table",
758 : PPPOE_NUM_BUCKETS, PPPOE_MEMORY_SIZE);
759 :
760 575 : BV (clib_bihash_init) (&pem->session_table, "pppoe session table",
761 : PPPOE_NUM_BUCKETS, PPPOE_MEMORY_SIZE);
762 :
763 575 : ethernet_register_input_type (vm, ETHERNET_TYPE_PPPOE_SESSION,
764 : pppoe_input_node.index);
765 :
766 575 : ethernet_register_input_type (vm, ETHERNET_TYPE_PPPOE_DISCOVERY,
767 : pppoe_cp_dispatch_node.index);
768 :
769 575 : pppoe_fib_src = fib_source_allocate ("pppoe",
770 : FIB_SOURCE_PRIORITY_HI,
771 : FIB_SOURCE_BH_API);
772 :
773 575 : return 0;
774 : }
775 :
776 1151 : VLIB_INIT_FUNCTION (pppoe_init);
777 :
778 : /* *INDENT-OFF* */
779 : VLIB_PLUGIN_REGISTER () = {
780 : .version = VPP_BUILD_VER,
781 : .description = "PPP over Ethernet (PPPoE)",
782 : };
783 : /* *INDENT-ON* */
784 :
785 : /*
786 : * fd.io coding-style-patch-verification: ON
787 : *
788 : * Local Variables:
789 : * eval: (c-set-style "gnu")
790 : * End:
791 : */
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