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Import uIP and the PPP implementation from https://code.google.com/p/avrusbmodem/
author Matt Johnston <matt@ucc.asn.au>
date Fri, 07 Sep 2012 23:53:53 +0800
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106:5c8404549cc0 107:56d09a0969b5
1 /**
2 * \addtogroup uip
3 * @{
4 */
5
6 /**
7 * \defgroup uipopt Configuration options for uIP
8 * @{
9 *
10 * uIP is configured using the per-project configuration file
11 * "uipopt.h". This file contains all compile-time options for uIP and
12 * should be tweaked to match each specific project. The uIP
13 * distribution contains a documented example "uipopt.h" that can be
14 * copied and modified for each project.
15 *
16 * \note Contiki does not use the uipopt.h file to configure uIP, but
17 * uses a per-port uip-conf.h file that should be edited instead.
18 */
19
20 /**
21 * \file
22 * Configuration options for uIP.
23 * \author Adam Dunkels <[email protected]>
24 *
25 * This file is used for tweaking various configuration options for
26 * uIP. You should make a copy of this file into one of your project's
27 * directories instead of editing this example "uipopt.h" file that
28 * comes with the uIP distribution.
29 */
30
31 /*
32 * Copyright (c) 2001-2003, Adam Dunkels.
33 * All rights reserved.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 3. The name of the author may not be used to endorse or promote
44 * products derived from this software without specific prior
45 * written permission.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
48 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
49 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
51 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
53 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
54 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
55 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
56 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
57 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
58 *
59 * This file is part of the uIP TCP/IP stack.
60 *
61 * $Id: uipopt.h,v 1.14 2010/12/24 00:39:04 dak664 Exp $
62 *
63 */
64
65 #ifndef __UIPOPT_H__
66 #define __UIPOPT_H__
67
68 #ifndef UIP_LITTLE_ENDIAN
69 #define UIP_LITTLE_ENDIAN 3412
70 #endif /* UIP_LITTLE_ENDIAN */
71 #ifndef UIP_BIG_ENDIAN
72 #define UIP_BIG_ENDIAN 1234
73 #endif /* UIP_BIG_ENDIAN */
74
75 //#include "contiki-conf.h"
76
77 /*------------------------------------------------------------------------------*/
78
79 /**
80 * \defgroup uipoptstaticconf Static configuration options
81 * @{
82 *
83 * These configuration options can be used for setting the IP address
84 * settings statically, but only if UIP_FIXEDADDR is set to 1. The
85 * configuration options for a specific node includes IP address,
86 * netmask and default router as well as the Ethernet address. The
87 * netmask, default router and Ethernet address are applicable only
88 * if uIP should be run over Ethernet.
89 *
90 * This options are meaningful only for the IPv4 code.
91 *
92 * All of these should be changed to suit your project.
93 */
94
95 /**
96 * Determines if uIP should use a fixed IP address or not.
97 *
98 * If uIP should use a fixed IP address, the settings are set in the
99 * uipopt.h file. If not, the macros uip_sethostaddr(),
100 * uip_setdraddr() and uip_setnetmask() should be used instead.
101 *
102 * \hideinitializer
103 */
104 #define UIP_FIXEDADDR 0
105
106 /**
107 * Ping IP address assignment.
108 *
109 * uIP uses a "ping" packets for setting its own IP address if this
110 * option is set. If so, uIP will start with an empty IP address and
111 * the destination IP address of the first incoming "ping" (ICMP echo)
112 * packet will be used for setting the hosts IP address.
113 *
114 * \note This works only if UIP_FIXEDADDR is 0.
115 *
116 * \hideinitializer
117 */
118 #ifdef UIP_CONF_PINGADDRCONF
119 #define UIP_PINGADDRCONF (UIP_CONF_PINGADDRCONF)
120 #else /* UIP_CONF_PINGADDRCONF */
121 #define UIP_PINGADDRCONF 0
122 #endif /* UIP_CONF_PINGADDRCONF */
123
124
125 /**
126 * Specifies if the uIP ARP module should be compiled with a fixed
127 * Ethernet MAC address or not.
128 *
129 * If this configuration option is 0, the macro uip_setethaddr() can
130 * be used to specify the Ethernet address at run-time.
131 *
132 * \hideinitializer
133 */
134 #define UIP_FIXEDETHADDR 0
135
136 /** @} */
137 /*------------------------------------------------------------------------------*/
138 /**
139 * \defgroup uipoptip IP configuration options
140 * @{
141 *
142 */
143 /**
144 * The IP TTL (time to live) of IP packets sent by uIP.
145 *
146 * This should normally not be changed.
147 */
148 #define UIP_TTL 64
149
150 /**
151 * The maximum time an IP fragment should wait in the reassembly
152 * buffer before it is dropped.
153 *
154 */
155 #define UIP_REASS_MAXAGE 60 /*60s*/
156
157 /**
158 * Turn on support for IP packet reassembly.
159 *
160 * uIP supports reassembly of fragmented IP packets. This features
161 * requires an additional amount of RAM to hold the reassembly buffer
162 * and the reassembly code size is approximately 700 bytes. The
163 * reassembly buffer is of the same size as the uip_buf buffer
164 * (configured by UIP_BUFSIZE).
165 *
166 * \note IP packet reassembly is not heavily tested.
167 *
168 * \hideinitializer
169 */
170 #ifdef UIP_CONF_REASSEMBLY
171 #define UIP_REASSEMBLY (UIP_CONF_REASSEMBLY)
172 #else /* UIP_CONF_REASSEMBLY */
173 #define UIP_REASSEMBLY 0
174 #endif /* UIP_CONF_REASSEMBLY */
175 /** @} */
176
177 /*------------------------------------------------------------------------------*/
178 /**
179 * \defgroup uipoptipv6 IPv6 configuration options
180 * @{
181 *
182 */
183
184 /** The maximum transmission unit at the IP Layer*/
185 #define UIP_LINK_MTU 1280
186
187 #ifndef UIP_CONF_IPV6
188 /** Do we use IPv6 or not (default: no) */
189 #define UIP_CONF_IPV6 0
190 #endif
191
192 #ifndef UIP_CONF_IPV6_QUEUE_PKT
193 /** Do we do per %neighbor queuing during address resolution (default: no) */
194 #define UIP_CONF_IPV6_QUEUE_PKT 0
195 #endif
196
197 #ifndef UIP_CONF_IPV6_CHECKS
198 /** Do we do IPv6 consistency checks (highly recommended, default: yes) */
199 #define UIP_CONF_IPV6_CHECKS 1
200 #endif
201
202 #ifndef UIP_CONF_IPV6_REASSEMBLY
203 /** Do we do IPv6 fragmentation (default: no) */
204 #define UIP_CONF_IPV6_REASSEMBLY 0
205 #endif
206
207 #ifndef UIP_CONF_NETIF_MAX_ADDRESSES
208 /** Default number of IPv6 addresses associated to the node's interface */
209 #define UIP_CONF_NETIF_MAX_ADDRESSES 3
210 #endif
211
212 #ifndef UIP_CONF_ND6_MAX_PREFIXES
213 /** Default number of IPv6 prefixes associated to the node's interface */
214 #define UIP_CONF_ND6_MAX_PREFIXES 3
215 #endif
216
217 #ifndef UIP_CONF_ND6_MAX_NEIGHBORS
218 /** Default number of neighbors that can be stored in the %neighbor cache */
219 #define UIP_CONF_ND6_MAX_NEIGHBORS 4
220 #endif
221
222 #ifndef UIP_CONF_ND6_MAX_DEFROUTERS
223 /** Minimum number of default routers */
224 #define UIP_CONF_ND6_MAX_DEFROUTERS 2
225 #endif
226 /** @} */
227
228 /*------------------------------------------------------------------------------*/
229 /**
230 * \defgroup uipoptudp UDP configuration options
231 * @{
232 *
233 * \note The UDP support in uIP is still not entirely complete; there
234 * is no support for sending or receiving broadcast or multicast
235 * packets, but it works well enough to support a number of vital
236 * applications such as DNS queries, though
237 */
238
239 /**
240 * Toggles whether UDP support should be compiled in or not.
241 *
242 * \hideinitializer
243 */
244 #ifdef UIP_CONF_UDP
245 #define UIP_UDP UIP_CONF_UDP
246 #else /* UIP_CONF_UDP */
247 #define UIP_UDP 0
248 #endif /* UIP_CONF_UDP */
249
250 /**
251 * Toggles if UDP checksums should be used or not.
252 *
253 * \note Support for UDP checksums is currently not included in uIP,
254 * so this option has no function.
255 *
256 * \hideinitializer
257 */
258 #ifdef UIP_CONF_UDP_CHECKSUMS
259 #define UIP_UDP_CHECKSUMS (UIP_CONF_UDP_CHECKSUMS)
260 #else
261 #define UIP_UDP_CHECKSUMS (UIP_CONF_IPV6)
262 #endif
263
264 /**
265 * The maximum amount of concurrent UDP connections.
266 *
267 * \hideinitializer
268 */
269 #ifdef UIP_CONF_UDP_CONNS
270 #define UIP_UDP_CONNS (UIP_CONF_UDP_CONNS)
271 #else /* UIP_CONF_UDP_CONNS */
272 #define UIP_UDP_CONNS 5
273 #endif /* UIP_CONF_UDP_CONNS */
274
275 /**
276 * The name of the function that should be called when UDP datagrams arrive.
277 *
278 * \hideinitializer
279 */
280
281
282 /** @} */
283 /*------------------------------------------------------------------------------*/
284 /**
285 * \defgroup uipopttcp TCP configuration options
286 * @{
287 */
288
289 /**
290 * Toggles whether UDP support should be compiled in or not.
291 *
292 * \hideinitializer
293 */
294 #ifdef UIP_CONF_TCP
295 #define UIP_TCP (UIP_CONF_TCP)
296 #else /* UIP_CONF_UDP */
297 #define UIP_TCP 1
298 #endif /* UIP_CONF_UDP */
299
300 /**
301 * Determines if support for opening connections from uIP should be
302 * compiled in.
303 *
304 * If the applications that are running on top of uIP for this project
305 * do not need to open outgoing TCP connections, this configuration
306 * option can be turned off to reduce the code size of uIP.
307 *
308 * \hideinitializer
309 */
310 #ifndef UIP_CONF_ACTIVE_OPEN
311 #define UIP_ACTIVE_OPEN 1
312 #else /* UIP_CONF_ACTIVE_OPEN */
313 #define UIP_ACTIVE_OPEN (UIP_CONF_ACTIVE_OPEN)
314 #endif /* UIP_CONF_ACTIVE_OPEN */
315
316 /**
317 * The maximum number of simultaneously open TCP connections.
318 *
319 * Since the TCP connections are statically allocated, turning this
320 * configuration knob down results in less RAM used. Each TCP
321 * connection requires approximately 30 bytes of memory.
322 *
323 * \hideinitializer
324 */
325 #ifndef UIP_CONF_MAX_CONNECTIONS
326 #define UIP_CONNS 5
327 #else /* UIP_CONF_MAX_CONNECTIONS */
328 #define UIP_CONNS (UIP_CONF_MAX_CONNECTIONS)
329 #endif /* UIP_CONF_MAX_CONNECTIONS */
330
331
332 /**
333 * The maximum number of simultaneously listening TCP ports.
334 *
335 * Each listening TCP port requires 2 bytes of memory.
336 *
337 * \hideinitializer
338 */
339 #ifndef UIP_CONF_MAX_LISTENPORTS
340 #define UIP_LISTENPORTS 2
341 #else /* UIP_CONF_MAX_LISTENPORTS */
342 #define UIP_LISTENPORTS (UIP_CONF_MAX_LISTENPORTS)
343 #endif /* UIP_CONF_MAX_LISTENPORTS */
344
345 /**
346 * Determines if support for TCP urgent data notification should be
347 * compiled in.
348 *
349 * Urgent data (out-of-band data) is a rarely used TCP feature that
350 * very seldom would be required.
351 *
352 * \hideinitializer
353 */
354 #define UIP_URGDATA 0
355
356 /**
357 * The initial retransmission timeout counted in timer pulses.
358 *
359 * This should not be changed.
360 */
361 #define UIP_RTO 3
362
363 /**
364 * The maximum number of times a segment should be retransmitted
365 * before the connection should be aborted.
366 *
367 * This should not be changed.
368 */
369 #define UIP_MAXRTX 8
370
371 /**
372 * The maximum number of times a SYN segment should be retransmitted
373 * before a connection request should be deemed to have been
374 * unsuccessful.
375 *
376 * This should not need to be changed.
377 */
378 #define UIP_MAXSYNRTX 5
379
380 /**
381 * The TCP maximum segment size.
382 *
383 * This is should not be to set to more than
384 * UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN.
385 */
386 #ifdef UIP_CONF_TCP_MSS
387 #define UIP_TCP_MSS (UIP_CONF_TCP_MSS)
388 #else
389 #define UIP_TCP_MSS (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
390 #endif
391
392 /**
393 * The size of the advertised receiver's window.
394 *
395 * Should be set low (i.e., to the size of the uip_buf buffer) if the
396 * application is slow to process incoming data, or high (32768 bytes)
397 * if the application processes data quickly.
398 *
399 * \hideinitializer
400 */
401 #ifndef UIP_CONF_RECEIVE_WINDOW
402 #define UIP_RECEIVE_WINDOW (UIP_TCP_MSS)
403 #else
404 #define UIP_RECEIVE_WINDOW (UIP_CONF_RECEIVE_WINDOW)
405 #endif
406
407 /**
408 * How long a connection should stay in the TIME_WAIT state.
409 *
410 * This can be reduced for faster entry into power saving modes.
411 */
412 #ifndef UIP_CONF_WAIT_TIMEOUT
413 #define UIP_TIME_WAIT_TIMEOUT 120
414 #else
415 #define UIP_TIME_WAIT_TIMEOUT UIP_CONF_WAIT_TIMEOUT
416 #endif
417
418 /** @} */
419 /*------------------------------------------------------------------------------*/
420 /**
421 * \defgroup uipoptarp ARP configuration options
422 * @{
423 */
424
425 /**
426 * The size of the ARP table.
427 *
428 * This option should be set to a larger value if this uIP node will
429 * have many connections from the local network.
430 *
431 * \hideinitializer
432 */
433 #ifdef UIP_CONF_ARPTAB_SIZE
434 #define UIP_ARPTAB_SIZE (UIP_CONF_ARPTAB_SIZE)
435 #else
436 #define UIP_ARPTAB_SIZE 8
437 #endif
438
439 /**
440 * The maximum age of ARP table entries measured in 10ths of seconds.
441 *
442 * An UIP_ARP_MAXAGE of 120 corresponds to 20 minutes (BSD
443 * default).
444 */
445 #define UIP_ARP_MAXAGE 120
446
447
448 /** @} */
449
450 /*------------------------------------------------------------------------------*/
451
452 /**
453 * \defgroup uipoptmac layer 2 options (for ipv6)
454 * @{
455 */
456
457 #define UIP_DEFAULT_PREFIX_LEN 64
458
459 /** @} */
460
461 /*------------------------------------------------------------------------------*/
462
463 /**
464 * \defgroup uipoptsics 6lowpan options (for ipv6)
465 * @{
466 */
467 /**
468 * Timeout for packet reassembly at the 6lowpan layer
469 * (should be < 60s)
470 */
471 #ifdef SICSLOWPAN_CONF_MAXAGE
472 #define SICSLOWPAN_REASS_MAXAGE (SICSLOWPAN_CONF_MAXAGE)
473 #else
474 #define SICSLOWPAN_REASS_MAXAGE 20
475 #endif
476
477 /**
478 * Do we compress the IP header or not (default: no)
479 */
480 #ifndef SICSLOWPAN_CONF_COMPRESSION
481 #define SICSLOWPAN_CONF_COMPRESSION 0
482 #endif
483
484 /**
485 * If we use IPHC compression, how many address contexts do we support
486 */
487 #ifndef SICSLOWPAN_CONF_MAX_ADDR_CONTEXTS
488 #define SICSLOWPAN_CONF_MAX_ADDR_CONTEXTS 1
489 #endif
490
491 /**
492 * Do we support 6lowpan fragmentation
493 */
494 #ifndef SICSLOWPAN_CONF_FRAG
495 #define SICSLOWPAN_CONF_FRAG 0
496 #endif
497
498 /** @} */
499
500 /*------------------------------------------------------------------------------*/
501
502 /**
503 * \defgroup uipoptgeneral General configuration options
504 * @{
505 */
506
507 /**
508 * The size of the uIP packet buffer.
509 *
510 * The uIP packet buffer should not be smaller than 60 bytes, and does
511 * not need to be larger than 1514 bytes. Lower size results in lower
512 * TCP throughput, larger size results in higher TCP throughput.
513 *
514 * \hideinitializer
515 */
516 #ifndef UIP_CONF_BUFFER_SIZE
517 #define UIP_BUFSIZE (UIP_LINK_MTU + UIP_LLH_LEN)
518 #else /* UIP_CONF_BUFFER_SIZE */
519 #define UIP_BUFSIZE (UIP_CONF_BUFFER_SIZE)
520 #endif /* UIP_CONF_BUFFER_SIZE */
521
522
523 /**
524 * Determines if statistics support should be compiled in.
525 *
526 * The statistics is useful for debugging and to show the user.
527 *
528 * \hideinitializer
529 */
530 #ifndef UIP_CONF_STATISTICS
531 #define UIP_STATISTICS 0
532 #else /* UIP_CONF_STATISTICS */
533 #define UIP_STATISTICS (UIP_CONF_STATISTICS)
534 #endif /* UIP_CONF_STATISTICS */
535
536 /**
537 * Determines if logging of certain events should be compiled in.
538 *
539 * This is useful mostly for debugging. The function uip_log()
540 * must be implemented to suit the architecture of the project, if
541 * logging is turned on.
542 *
543 * \hideinitializer
544 */
545 #ifndef UIP_CONF_LOGGING
546 #define UIP_LOGGING 0
547 #else /* UIP_CONF_LOGGING */
548 #define UIP_LOGGING (UIP_CONF_LOGGING)
549 #endif /* UIP_CONF_LOGGING */
550
551 /**
552 * Broadcast support.
553 *
554 * This flag configures IP broadcast support. This is useful only
555 * together with UDP.
556 *
557 * \hideinitializer
558 *
559 */
560 #ifndef UIP_CONF_BROADCAST
561 #define UIP_BROADCAST 0
562 #else /* UIP_CONF_BROADCAST */
563 #define UIP_BROADCAST (UIP_CONF_BROADCAST)
564 #endif /* UIP_CONF_BROADCAST */
565
566 /**
567 * Print out a uIP log message.
568 *
569 * This function must be implemented by the module that uses uIP, and
570 * is called by uIP whenever a log message is generated.
571 */
572 void uip_log(char *msg);
573
574 /**
575 * The link level header length.
576 *
577 * This is the offset into the uip_buf where the IP header can be
578 * found. For Ethernet, this should be set to 14. For SLIP, this
579 * should be set to 0.
580 *
581 * \note we probably won't use this constant for other link layers than
582 * ethernet as they have variable header length (this is due to variable
583 * number and type of address fields and to optional security features)
584 * E.g.: 802.15.4 -> 2 + (1/2*4/8) + 0/5/6/10/14
585 * 802.11 -> 4 + (6*3/4) + 2
586 * \hideinitializer
587 */
588 #ifdef UIP_CONF_LLH_LEN
589 #define UIP_LLH_LEN (UIP_CONF_LLH_LEN)
590 #else /* UIP_LLH_LEN */
591 #define UIP_LLH_LEN 0
592 #endif /* UIP_CONF_LLH_LEN */
593
594 /** @} */
595 /*------------------------------------------------------------------------------*/
596 /**
597 * \defgroup uipoptcpu CPU architecture configuration
598 * @{
599 *
600 * The CPU architecture configuration is where the endianess of the
601 * CPU on which uIP is to be run is specified. Most CPUs today are
602 * little endian, and the most notable exception are the Motorolas
603 * which are big endian. The BYTE_ORDER macro should be changed to
604 * reflect the CPU architecture on which uIP is to be run.
605 */
606
607 /**
608 * The byte order of the CPU architecture on which uIP is to be run.
609 *
610 * This option can be either UIP_BIG_ENDIAN (Motorola byte order) or
611 * UIP_LITTLE_ENDIAN (Intel byte order).
612 *
613 * \hideinitializer
614 */
615 #ifdef UIP_CONF_BYTE_ORDER
616 #define UIP_BYTE_ORDER (UIP_CONF_BYTE_ORDER)
617 #else /* UIP_CONF_BYTE_ORDER */
618 #define UIP_BYTE_ORDER (UIP_LITTLE_ENDIAN)
619 #endif /* UIP_CONF_BYTE_ORDER */
620
621 /** @} */
622 /*------------------------------------------------------------------------------*/
623 #include <stdint.h>
624 //
625 typedef uint8_t u8_t;
626 typedef uint16_t u16_t;
627 typedef uint32_t u32_t;
628 typedef uint32_t uip_stats_t;
629 /**
630 * \defgroup uipoptapp Application specific configurations
631 * @{
632 *
633 * An uIP application is implemented using a single application
634 * function that is called by uIP whenever a TCP/IP event occurs. The
635 * name of this function must be registered with uIP at compile time
636 * using the UIP_APPCALL definition.
637 *
638 * uIP applications can store the application state within the
639 * uip_conn structure by specifying the type of the application
640 * structure by typedef:ing the type uip_tcp_appstate_t and uip_udp_appstate_t.
641 *
642 * The file containing the definitions must be included in the
643 * uipopt.h file.
644 *
645 * The following example illustrates how this can look.
646 \code
647
648 void httpd_appcall(void);
649 #define UIP_APPCALL httpd_appcall
650
651 struct httpd_state {
652 u8_t state;
653 u16_t count;
654 char *dataptr;
655 char *script;
656 };
657 typedef struct httpd_state uip_tcp_appstate_t
658 \endcode
659 */
660
661 /**
662 * \var #define UIP_APPCALL
663 *
664 * The name of the application function that uIP should call in
665 * response to TCP/IP events.
666 *
667 */
668 #define UIP_APPCALL TCPIP_TCPCallback
669 void UIP_APPCALL(void);
670
671 /**
672 * \var typedef uip_tcp_appstate_t
673 *
674 * The type of the application state that is to be stored in the
675 * uip_conn structure. This usually is typedef:ed to a struct holding
676 * application state information.
677 */
678 typedef struct
679 {
680 uint8_t RESERVED;
681 } uip_tcp_appstate_t;
682
683 /**
684 * \var typedef uip_udp_appstate_t
685 *
686 * The type of the application state that is to be stored in the
687 * uip_conn structure. This usually is typedef:ed to a struct holding
688 * application state information.
689 */
690 typedef struct
691 {
692 uint8_t RESERVED;
693 } uip_udp_appstate_t;
694
695 /** @} */
696
697 #endif /* __UIPOPT_H__ */
698 /** @} */
699 /** @} */