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1 office 1 /**
2 * @file
3 * Point To Point Protocol Sequential API module
4 *
5 */
6  
7 /*
8 * Redistribution and use in source and binary forms, with or without modification,
9 * are permitted provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
22 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
24 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
27 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
28 * OF SUCH DAMAGE.
29 *
30 * This file is part of the lwIP TCP/IP stack.
31 *
32 */
33  
34 #include "netif/ppp/ppp_opts.h"
35  
36 #if LWIP_PPP_API /* don't build if not configured for use in lwipopts.h */
37  
38 #include "netif/ppp/pppapi.h"
39 #include "lwip/priv/tcpip_priv.h"
40 #include "netif/ppp/pppoe.h"
41 #include "netif/ppp/pppol2tp.h"
42 #include "netif/ppp/pppos.h"
43  
44 #if LWIP_MPU_COMPATIBLE
45 LWIP_MEMPOOL_DECLARE(PPPAPI_MSG, MEMP_NUM_PPP_API_MSG, sizeof(struct pppapi_msg), "PPPAPI_MSG")
46 #endif
47  
48 #define PPPAPI_VAR_REF(name) API_VAR_REF(name)
49 #define PPPAPI_VAR_DECLARE(name) API_VAR_DECLARE(struct pppapi_msg, name)
50 #define PPPAPI_VAR_ALLOC(name) API_VAR_ALLOC_POOL(struct pppapi_msg, PPPAPI_MSG, name, ERR_MEM)
51 #define PPPAPI_VAR_ALLOC_RETURN_NULL(name) API_VAR_ALLOC_POOL(struct pppapi_msg, PPPAPI_MSG, name, NULL)
52 #define PPPAPI_VAR_FREE(name) API_VAR_FREE_POOL(PPPAPI_MSG, name)
53  
54 /**
55 * Call ppp_set_default() inside the tcpip_thread context.
56 */
57 static err_t
58 pppapi_do_ppp_set_default(struct tcpip_api_call_data *m)
59 {
60 /* cast through void* to silence alignment warnings.
61 * We know it works because the structs have been instantiated as struct pppapi_msg */
62 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
63  
64 ppp_set_default(msg->msg.ppp);
65 return ERR_OK;
66 }
67  
68 /**
69 * Call ppp_set_default() in a thread-safe way by running that function inside the
70 * tcpip_thread context.
71 */
72 err_t
73 pppapi_set_default(ppp_pcb *pcb)
74 {
75 err_t err;
76 PPPAPI_VAR_DECLARE(msg);
77 PPPAPI_VAR_ALLOC(msg);
78  
79 PPPAPI_VAR_REF(msg).msg.ppp = pcb;
80 err = tcpip_api_call(pppapi_do_ppp_set_default, &PPPAPI_VAR_REF(msg).call);
81 PPPAPI_VAR_FREE(msg);
82 return err;
83 }
84  
85  
86 #if PPP_NOTIFY_PHASE
87 /**
88 * Call ppp_set_notify_phase_callback() inside the tcpip_thread context.
89 */
90 static err_t
91 pppapi_do_ppp_set_notify_phase_callback(struct tcpip_api_call_data *m)
92 {
93 /* cast through void* to silence alignment warnings.
94 * We know it works because the structs have been instantiated as struct pppapi_msg */
95 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
96  
97 ppp_set_notify_phase_callback(msg->msg.ppp, msg->msg.msg.setnotifyphasecb.notify_phase_cb);
98 return ERR_OK;
99 }
100  
101 /**
102 * Call ppp_set_notify_phase_callback() in a thread-safe way by running that function inside the
103 * tcpip_thread context.
104 */
105 err_t
106 pppapi_set_notify_phase_callback(ppp_pcb *pcb, ppp_notify_phase_cb_fn notify_phase_cb)
107 {
108 err_t err;
109 PPPAPI_VAR_DECLARE(msg);
110 PPPAPI_VAR_ALLOC(msg);
111  
112 PPPAPI_VAR_REF(msg).msg.ppp = pcb;
113 PPPAPI_VAR_REF(msg).msg.msg.setnotifyphasecb.notify_phase_cb = notify_phase_cb;
114 err = tcpip_api_call(pppapi_do_ppp_set_notify_phase_callback, &PPPAPI_VAR_REF(msg).call);
115 PPPAPI_VAR_FREE(msg);
116 return err;
117 }
118 #endif /* PPP_NOTIFY_PHASE */
119  
120  
121 #if PPPOS_SUPPORT
122 /**
123 * Call pppos_create() inside the tcpip_thread context.
124 */
125 static err_t
126 pppapi_do_pppos_create(struct tcpip_api_call_data *m)
127 {
128 /* cast through void* to silence alignment warnings.
129 * We know it works because the structs have been instantiated as struct pppapi_msg */
130 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
131  
132 msg->msg.ppp = pppos_create(msg->msg.msg.serialcreate.pppif, msg->msg.msg.serialcreate.output_cb,
133 msg->msg.msg.serialcreate.link_status_cb, msg->msg.msg.serialcreate.ctx_cb);
134 return ERR_OK;
135 }
136  
137 /**
138 * Call pppos_create() in a thread-safe way by running that function inside the
139 * tcpip_thread context.
140 */
141 ppp_pcb*
142 pppapi_pppos_create(struct netif *pppif, pppos_output_cb_fn output_cb,
143 ppp_link_status_cb_fn link_status_cb, void *ctx_cb)
144 {
145 ppp_pcb* result;
146 PPPAPI_VAR_DECLARE(msg);
147 PPPAPI_VAR_ALLOC_RETURN_NULL(msg);
148  
149 PPPAPI_VAR_REF(msg).msg.ppp = NULL;
150 PPPAPI_VAR_REF(msg).msg.msg.serialcreate.pppif = pppif;
151 PPPAPI_VAR_REF(msg).msg.msg.serialcreate.output_cb = output_cb;
152 PPPAPI_VAR_REF(msg).msg.msg.serialcreate.link_status_cb = link_status_cb;
153 PPPAPI_VAR_REF(msg).msg.msg.serialcreate.ctx_cb = ctx_cb;
154 tcpip_api_call(pppapi_do_pppos_create, &PPPAPI_VAR_REF(msg).call);
155 result = PPPAPI_VAR_REF(msg).msg.ppp;
156 PPPAPI_VAR_FREE(msg);
157 return result;
158 }
159 #endif /* PPPOS_SUPPORT */
160  
161  
162 #if PPPOE_SUPPORT
163 /**
164 * Call pppoe_create() inside the tcpip_thread context.
165 */
166 static err_t
167 pppapi_do_pppoe_create(struct tcpip_api_call_data *m)
168 {
169 /* cast through void* to silence alignment warnings.
170 * We know it works because the structs have been instantiated as struct pppapi_msg */
171 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
172  
173 msg->msg.ppp = pppoe_create(msg->msg.msg.ethernetcreate.pppif, msg->msg.msg.ethernetcreate.ethif,
174 msg->msg.msg.ethernetcreate.service_name, msg->msg.msg.ethernetcreate.concentrator_name,
175 msg->msg.msg.ethernetcreate.link_status_cb, msg->msg.msg.ethernetcreate.ctx_cb);
176 return ERR_OK;
177 }
178  
179 /**
180 * Call pppoe_create() in a thread-safe way by running that function inside the
181 * tcpip_thread context.
182 */
183 ppp_pcb*
184 pppapi_pppoe_create(struct netif *pppif, struct netif *ethif, const char *service_name,
185 const char *concentrator_name, ppp_link_status_cb_fn link_status_cb,
186 void *ctx_cb)
187 {
188 ppp_pcb* result;
189 PPPAPI_VAR_DECLARE(msg);
190 PPPAPI_VAR_ALLOC_RETURN_NULL(msg);
191  
192 PPPAPI_VAR_REF(msg).msg.ppp = NULL;
193 PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.pppif = pppif;
194 PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.ethif = ethif;
195 PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.service_name = service_name;
196 PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.concentrator_name = concentrator_name;
197 PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.link_status_cb = link_status_cb;
198 PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.ctx_cb = ctx_cb;
199 tcpip_api_call(pppapi_do_pppoe_create, &PPPAPI_VAR_REF(msg).call);
200 result = PPPAPI_VAR_REF(msg).msg.ppp;
201 PPPAPI_VAR_FREE(msg);
202 return result;
203 }
204 #endif /* PPPOE_SUPPORT */
205  
206  
207 #if PPPOL2TP_SUPPORT
208 /**
209 * Call pppol2tp_create() inside the tcpip_thread context.
210 */
211 static err_t
212 pppapi_do_pppol2tp_create(struct tcpip_api_call_data *m)
213 {
214 /* cast through void* to silence alignment warnings.
215 * We know it works because the structs have been instantiated as struct pppapi_msg */
216 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
217  
218 msg->msg.ppp = pppol2tp_create(msg->msg.msg.l2tpcreate.pppif,
219 msg->msg.msg.l2tpcreate.netif, API_EXPR_REF(msg->msg.msg.l2tpcreate.ipaddr), msg->msg.msg.l2tpcreate.port,
220 #if PPPOL2TP_AUTH_SUPPORT
221 msg->msg.msg.l2tpcreate.secret,
222 msg->msg.msg.l2tpcreate.secret_len,
223 #else /* PPPOL2TP_AUTH_SUPPORT */
224 NULL,
225 0,
226 #endif /* PPPOL2TP_AUTH_SUPPORT */
227 msg->msg.msg.l2tpcreate.link_status_cb, msg->msg.msg.l2tpcreate.ctx_cb);
228 return ERR_OK;
229 }
230  
231 /**
232 * Call pppol2tp_create() in a thread-safe way by running that function inside the
233 * tcpip_thread context.
234 */
235 ppp_pcb*
236 pppapi_pppol2tp_create(struct netif *pppif, struct netif *netif, ip_addr_t *ipaddr, u16_t port,
237 const u8_t *secret, u8_t secret_len,
238 ppp_link_status_cb_fn link_status_cb, void *ctx_cb)
239 {
240 ppp_pcb* result;
241 PPPAPI_VAR_DECLARE(msg);
242 PPPAPI_VAR_ALLOC_RETURN_NULL(msg);
243 #if !PPPOL2TP_AUTH_SUPPORT
244 LWIP_UNUSED_ARG(secret);
245 LWIP_UNUSED_ARG(secret_len);
246 #endif /* !PPPOL2TP_AUTH_SUPPORT */
247  
248 PPPAPI_VAR_REF(msg).msg.ppp = NULL;
249 PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.pppif = pppif;
250 PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.netif = netif;
251 PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.ipaddr = PPPAPI_VAR_REF(ipaddr);
252 PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.port = port;
253 #if PPPOL2TP_AUTH_SUPPORT
254 PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.secret = secret;
255 PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.secret_len = secret_len;
256 #endif /* PPPOL2TP_AUTH_SUPPORT */
257 PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.link_status_cb = link_status_cb;
258 PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.ctx_cb = ctx_cb;
259 tcpip_api_call(pppapi_do_pppol2tp_create, &PPPAPI_VAR_REF(msg).call);
260 result = PPPAPI_VAR_REF(msg).msg.ppp;
261 PPPAPI_VAR_FREE(msg);
262 return result;
263 }
264 #endif /* PPPOL2TP_SUPPORT */
265  
266  
267 /**
268 * Call ppp_connect() inside the tcpip_thread context.
269 */
270 static err_t
271 pppapi_do_ppp_connect(struct tcpip_api_call_data *m)
272 {
273 /* cast through void* to silence alignment warnings.
274 * We know it works because the structs have been instantiated as struct pppapi_msg */
275 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
276  
277 return ppp_connect(msg->msg.ppp, msg->msg.msg.connect.holdoff);
278 }
279  
280 /**
281 * Call ppp_connect() in a thread-safe way by running that function inside the
282 * tcpip_thread context.
283 */
284 err_t
285 pppapi_connect(ppp_pcb *pcb, u16_t holdoff)
286 {
287 err_t err;
288 PPPAPI_VAR_DECLARE(msg);
289 PPPAPI_VAR_ALLOC(msg);
290  
291 PPPAPI_VAR_REF(msg).msg.ppp = pcb;
292 PPPAPI_VAR_REF(msg).msg.msg.connect.holdoff = holdoff;
293 err = tcpip_api_call(pppapi_do_ppp_connect, &PPPAPI_VAR_REF(msg).call);
294 PPPAPI_VAR_FREE(msg);
295 return err;
296 }
297  
298  
299 #if PPP_SERVER
300 /**
301 * Call ppp_listen() inside the tcpip_thread context.
302 */
303 static err_t
304 pppapi_do_ppp_listen(struct tcpip_api_call_data *m)
305 {
306 /* cast through void* to silence alignment warnings.
307 * We know it works because the structs have been instantiated as struct pppapi_msg */
308 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
309  
310 return ppp_listen(msg->msg.ppp);
311 }
312  
313 /**
314 * Call ppp_listen() in a thread-safe way by running that function inside the
315 * tcpip_thread context.
316 */
317 err_t
318 pppapi_listen(ppp_pcb *pcb)
319 {
320 err_t err;
321 PPPAPI_VAR_DECLARE(msg);
322 PPPAPI_VAR_ALLOC(msg);
323  
324 PPPAPI_VAR_REF(msg).msg.ppp = pcb;
325 err = tcpip_api_call(pppapi_do_ppp_listen, &PPPAPI_VAR_REF(msg).call);
326 PPPAPI_VAR_FREE(msg);
327 return err;
328 }
329 #endif /* PPP_SERVER */
330  
331  
332 /**
333 * Call ppp_close() inside the tcpip_thread context.
334 */
335 static err_t
336 pppapi_do_ppp_close(struct tcpip_api_call_data *m)
337 {
338 /* cast through void* to silence alignment warnings.
339 * We know it works because the structs have been instantiated as struct pppapi_msg */
340 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
341  
342 return ppp_close(msg->msg.ppp, msg->msg.msg.close.nocarrier);
343 }
344  
345 /**
346 * Call ppp_close() in a thread-safe way by running that function inside the
347 * tcpip_thread context.
348 */
349 err_t
350 pppapi_close(ppp_pcb *pcb, u8_t nocarrier)
351 {
352 err_t err;
353 PPPAPI_VAR_DECLARE(msg);
354 PPPAPI_VAR_ALLOC(msg);
355  
356 PPPAPI_VAR_REF(msg).msg.ppp = pcb;
357 PPPAPI_VAR_REF(msg).msg.msg.close.nocarrier = nocarrier;
358 err = tcpip_api_call(pppapi_do_ppp_close, &PPPAPI_VAR_REF(msg).call);
359 PPPAPI_VAR_FREE(msg);
360 return err;
361 }
362  
363  
364 /**
365 * Call ppp_free() inside the tcpip_thread context.
366 */
367 static err_t
368 pppapi_do_ppp_free(struct tcpip_api_call_data *m)
369 {
370 /* cast through void* to silence alignment warnings.
371 * We know it works because the structs have been instantiated as struct pppapi_msg */
372 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
373  
374 return ppp_free(msg->msg.ppp);
375 }
376  
377 /**
378 * Call ppp_free() in a thread-safe way by running that function inside the
379 * tcpip_thread context.
380 */
381 err_t
382 pppapi_free(ppp_pcb *pcb)
383 {
384 err_t err;
385 PPPAPI_VAR_DECLARE(msg);
386 PPPAPI_VAR_ALLOC(msg);
387  
388 PPPAPI_VAR_REF(msg).msg.ppp = pcb;
389 err = tcpip_api_call(pppapi_do_ppp_free, &PPPAPI_VAR_REF(msg).call);
390 PPPAPI_VAR_FREE(msg);
391 return err;
392 }
393  
394  
395 /**
396 * Call ppp_ioctl() inside the tcpip_thread context.
397 */
398 static err_t
399 pppapi_do_ppp_ioctl(struct tcpip_api_call_data *m)
400 {
401 /* cast through void* to silence alignment warnings.
402 * We know it works because the structs have been instantiated as struct pppapi_msg */
403 struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
404  
405 return ppp_ioctl(msg->msg.ppp, msg->msg.msg.ioctl.cmd, msg->msg.msg.ioctl.arg);
406 }
407  
408 /**
409 * Call ppp_ioctl() in a thread-safe way by running that function inside the
410 * tcpip_thread context.
411 */
412 err_t
413 pppapi_ioctl(ppp_pcb *pcb, u8_t cmd, void *arg)
414 {
415 err_t err;
416 PPPAPI_VAR_DECLARE(msg);
417 PPPAPI_VAR_ALLOC(msg);
418  
419 PPPAPI_VAR_REF(msg).msg.ppp = pcb;
420 PPPAPI_VAR_REF(msg).msg.msg.ioctl.cmd = cmd;
421 PPPAPI_VAR_REF(msg).msg.msg.ioctl.arg = arg;
422 err = tcpip_api_call(pppapi_do_ppp_ioctl, &PPPAPI_VAR_REF(msg).call);
423 PPPAPI_VAR_FREE(msg);
424 return err;
425 }
426  
427 #endif /* LWIP_PPP_API */