| blob | eb99a7784609e761e11c67868f9ca54c3d6f7352 |
1 /**
2 * @file
3 *
4 * lwIP Options Configuration
5 */
7 /*
8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without modification,
12 * are permitted provided that the following conditions are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright notice,
15 * this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright notice,
17 * this list of conditions and the following disclaimer in the documentation
18 * and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
31 * OF SUCH DAMAGE.
32 *
33 * This file is part of the lwIP TCP/IP stack.
34 *
35 * Author: Adam Dunkels <adam@sics.se>
36 *
37 */
38 #ifndef __LWIP_OPT_H__
39 #define __LWIP_OPT_H__
41 /*
42 * Include user defined options first. Anything not defined in these files
43 * will be set to standard values. Override anything you dont like!
44 */
48 /*
49 -----------------------------------------------
50 ---------- Platform specific locking ----------
51 -----------------------------------------------
52 */
54 /**
55 * SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain
56 * critical regions during buffer allocation, deallocation and memory
57 * allocation and deallocation.
58 */
59 #ifndef SYS_LIGHTWEIGHT_PROT
60 #define SYS_LIGHTWEIGHT_PROT 0
61 #endif
63 /**
64 * NO_SYS==1: Provides VERY minimal functionality. Otherwise,
65 * use lwIP facilities.
66 */
67 #ifndef NO_SYS
68 #define NO_SYS 0
69 #endif
71 /**
72 * MEMCPY: override this if you have a faster implementation at hand than the
73 * one included in your C library
74 */
75 #ifndef MEMCPY
76 #define MEMCPY(dst,src,len) memcpy(dst,src,len)
77 #endif
79 /**
80 * SMEMCPY: override this with care! Some compilers (e.g. gcc) can inline a
81 * call to memcpy() if the length is known at compile time and is small.
82 */
83 #ifndef SMEMCPY
84 #define SMEMCPY(dst,src,len) memcpy(dst,src,len)
85 #endif
87 /*
88 ------------------------------------
89 ---------- Memory options ----------
90 ------------------------------------
91 */
92 /**
93 * MEM_LIBC_MALLOC==1: Use malloc/free/realloc provided by your C-library
94 * instead of the lwip internal allocator. Can save code size if you
95 * already use it.
96 */
97 #ifndef MEM_LIBC_MALLOC
98 #define MEM_LIBC_MALLOC 0
99 #endif
101 /**
102 * MEMP_MEM_MALLOC==1: Use mem_malloc/mem_free instead of the lwip pool allocator.
103 * Especially useful with MEM_LIBC_MALLOC but handle with care regarding execution
104 * speed and usage from interrupts!
105 */
106 #ifndef MEMP_MEM_MALLOC
107 #define MEMP_MEM_MALLOC 0
108 #endif
110 /**
111 * MEM_ALIGNMENT: should be set to the alignment of the CPU
112 * 4 byte alignment -> #define MEM_ALIGNMENT 4
113 * 2 byte alignment -> #define MEM_ALIGNMENT 2
114 */
115 #ifndef MEM_ALIGNMENT
116 #define MEM_ALIGNMENT 1
117 #endif
119 /**
120 * MEM_SIZE: the size of the heap memory. If the application will send
121 * a lot of data that needs to be copied, this should be set high.
122 */
123 #ifndef MEM_SIZE
124 #define MEM_SIZE 1600
125 #endif
127 /**
128 * MEMP_OVERFLOW_CHECK: memp overflow protection reserves a configurable
129 * amount of bytes before and after each memp element in every pool and fills
130 * it with a prominent default value.
131 * MEMP_OVERFLOW_CHECK == 0 no checking
132 * MEMP_OVERFLOW_CHECK == 1 checks each element when it is freed
133 * MEMP_OVERFLOW_CHECK >= 2 checks each element in every pool every time
134 * memp_malloc() or memp_free() is called (useful but slow!)
135 */
136 #ifndef MEMP_OVERFLOW_CHECK
137 #define MEMP_OVERFLOW_CHECK 0
138 #endif
140 /**
141 * MEMP_SANITY_CHECK==1: run a sanity check after each memp_free() to make
142 * sure that there are no cycles in the linked lists.
143 */
144 #ifndef MEMP_SANITY_CHECK
145 #define MEMP_SANITY_CHECK 0
146 #endif
148 /**
149 * MEM_USE_POOLS==1: Use an alternative to malloc() by allocating from a set
150 * of memory pools of various sizes. When mem_malloc is called, an element of
151 * the smallest pool that can provide the length needed is returned.
152 * To use this, MEMP_USE_CUSTOM_POOLS also has to be enabled.
153 */
154 #ifndef MEM_USE_POOLS
155 #define MEM_USE_POOLS 0
156 #endif
158 /**
159 * MEM_USE_POOLS_TRY_BIGGER_POOL==1: if one malloc-pool is empty, try the next
160 * bigger pool - WARNING: THIS MIGHT WASTE MEMORY but it can make a system more
161 * reliable. */
162 #ifndef MEM_USE_POOLS_TRY_BIGGER_POOL
163 #define MEM_USE_POOLS_TRY_BIGGER_POOL 0
164 #endif
166 /**
167 * MEMP_USE_CUSTOM_POOLS==1: whether to include a user file lwippools.h
168 * that defines additional pools beyond the "standard" ones required
169 * by lwIP. If you set this to 1, you must have lwippools.h in your
170 * inlude path somewhere.
171 */
172 #ifndef MEMP_USE_CUSTOM_POOLS
173 #define MEMP_USE_CUSTOM_POOLS 0
174 #endif
176 /**
177 * Set this to 1 if you want to free PBUF_RAM pbufs (or call mem_free()) from
178 * interrupt context (or another context that doesn't allow waiting for a
179 * semaphore).
180 * If set to 1, mem_malloc will be protected by a semaphore and SYS_ARCH_PROTECT,
181 * while mem_free will only use SYS_ARCH_PROTECT. mem_malloc SYS_ARCH_UNPROTECTs
182 * with each loop so that mem_free can run.
183 *
184 * ATTENTION: As you can see from the above description, this leads to dis-/
185 * enabling interrupts often, which can be slow! Also, on low memory, mem_malloc
186 * can need longer.
187 *
188 * If you don't want that, at least for NO_SYS=0, you can still use the following
189 * functions to enqueue a deallocation call which then runs in the tcpip_thread
190 * context:
191 * - pbuf_free_callback(p);
192 * - mem_free_callback(m);
193 */
194 #ifndef LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT
195 #define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0
196 #endif
198 /*
199 ------------------------------------------------
200 ---------- Internal Memory Pool Sizes ----------
201 ------------------------------------------------
202 */
203 /**
204 * MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF).
205 * If the application sends a lot of data out of ROM (or other static memory),
206 * this should be set high.
207 */
208 #ifndef MEMP_NUM_PBUF
209 #define MEMP_NUM_PBUF 16
210 #endif
212 /**
213 * MEMP_NUM_RAW_PCB: Number of raw connection PCBs
214 * (requires the LWIP_RAW option)
215 */
216 #ifndef MEMP_NUM_RAW_PCB
217 #define MEMP_NUM_RAW_PCB 4
218 #endif
220 /**
221 * MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
222 * per active UDP "connection".
223 * (requires the LWIP_UDP option)
224 */
225 #ifndef MEMP_NUM_UDP_PCB
226 #define MEMP_NUM_UDP_PCB 4
227 #endif
229 /**
230 * MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections.
231 * (requires the LWIP_TCP option)
232 */
233 #ifndef MEMP_NUM_TCP_PCB
234 #define MEMP_NUM_TCP_PCB 5
235 #endif
237 /**
238 * MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
239 * (requires the LWIP_TCP option)
240 */
241 #ifndef MEMP_NUM_TCP_PCB_LISTEN
242 #define MEMP_NUM_TCP_PCB_LISTEN 8
243 #endif
245 /**
246 * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
247 * (requires the LWIP_TCP option)
248 */
249 #ifndef MEMP_NUM_TCP_SEG
250 #define MEMP_NUM_TCP_SEG 16
251 #endif
253 /**
254 * MEMP_NUM_REASSDATA: the number of simultaneously IP packets queued for
255 * reassembly (whole packets, not fragments!)
256 */
257 #ifndef MEMP_NUM_REASSDATA
258 #define MEMP_NUM_REASSDATA 5
259 #endif
261 /**
262 * MEMP_NUM_ARP_QUEUE: the number of simulateously queued outgoing
263 * packets (pbufs) that are waiting for an ARP request (to resolve
264 * their destination address) to finish.
265 * (requires the ARP_QUEUEING option)
266 */
267 #ifndef MEMP_NUM_ARP_QUEUE
268 #define MEMP_NUM_ARP_QUEUE 30
269 #endif
271 /**
272 * MEMP_NUM_IGMP_GROUP: The number of multicast groups whose network interfaces
273 * can be members et the same time (one per netif - allsystems group -, plus one
274 * per netif membership).
275 * (requires the LWIP_IGMP option)
276 */
277 #ifndef MEMP_NUM_IGMP_GROUP
278 #define MEMP_NUM_IGMP_GROUP 8
279 #endif
281 /**
282 * MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts.
283 * (requires NO_SYS==0)
284 */
285 #ifndef MEMP_NUM_SYS_TIMEOUT
286 #define MEMP_NUM_SYS_TIMEOUT 3
287 #endif
289 /**
290 * MEMP_NUM_NETBUF: the number of struct netbufs.
291 * (only needed if you use the sequential API, like api_lib.c)
292 */
293 #ifndef MEMP_NUM_NETBUF
294 #define MEMP_NUM_NETBUF 2
295 #endif
297 /**
298 * MEMP_NUM_NETCONN: the number of struct netconns.
299 * (only needed if you use the sequential API, like api_lib.c)
300 */
301 #ifndef MEMP_NUM_NETCONN
302 #define MEMP_NUM_NETCONN 4
303 #endif
305 /**
306 * MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used
307 * for callback/timeout API communication.
308 * (only needed if you use tcpip.c)
309 */
310 #ifndef MEMP_NUM_TCPIP_MSG_API
311 #define MEMP_NUM_TCPIP_MSG_API 8
312 #endif
314 /**
315 * MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used
316 * for incoming packets.
317 * (only needed if you use tcpip.c)
318 */
319 #ifndef MEMP_NUM_TCPIP_MSG_INPKT
320 #define MEMP_NUM_TCPIP_MSG_INPKT 8
321 #endif
323 /**
324 * PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
325 */
326 #ifndef PBUF_POOL_SIZE
327 #define PBUF_POOL_SIZE 16
328 #endif
330 /*
331 ---------------------------------
332 ---------- ARP options ----------
333 ---------------------------------
334 */
335 /**
336 * LWIP_ARP==1: Enable ARP functionality.
337 */
338 #ifndef LWIP_ARP
339 #define LWIP_ARP 1
340 #endif
342 /**
343 * ARP_TABLE_SIZE: Number of active MAC-IP address pairs cached.
344 */
345 #ifndef ARP_TABLE_SIZE
346 #define ARP_TABLE_SIZE 10
347 #endif
349 /**
350 * ARP_QUEUEING==1: Outgoing packets are queued during hardware address
351 * resolution.
352 */
353 #ifndef ARP_QUEUEING
354 #define ARP_QUEUEING 1
355 #endif
357 /**
358 * ETHARP_TRUST_IP_MAC==1: Incoming IP packets cause the ARP table to be
359 * updated with the source MAC and IP addresses supplied in the packet.
360 * You may want to disable this if you do not trust LAN peers to have the
361 * correct addresses, or as a limited approach to attempt to handle
362 * spoofing. If disabled, lwIP will need to make a new ARP request if
363 * the peer is not already in the ARP table, adding a little latency.
364 */
365 #ifndef ETHARP_TRUST_IP_MAC
366 #define ETHARP_TRUST_IP_MAC 1
367 #endif
369 /**
370 * ETHARP_SUPPORT_VLAN==1: support receiving ethernet packets with VLAN header.
371 * Additionally, you can define ETHARP_VLAN_CHECK to an u16_t VLAN ID to check.
372 * If ETHARP_VLAN_CHECK is defined, only VLAN-traffic for this VLAN is accepted.
373 * If ETHARP_VLAN_CHECK is not defined, all traffic is accepted.
374 */
375 #ifndef ETHARP_SUPPORT_VLAN
376 #define ETHARP_SUPPORT_VLAN 0
377 #endif
379 /*
380 --------------------------------
381 ---------- IP options ----------
382 --------------------------------
383 */
384 /**
385 * IP_FORWARD==1: Enables the ability to forward IP packets across network
386 * interfaces. If you are going to run lwIP on a device with only one network
387 * interface, define this to 0.
388 */
389 #ifndef IP_FORWARD
390 #define IP_FORWARD 0
391 #endif
393 /**
394 * IP_OPTIONS_ALLOWED: Defines the behavior for IP options.
395 * IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped.
396 * IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed).
397 */
398 #ifndef IP_OPTIONS_ALLOWED
399 #define IP_OPTIONS_ALLOWED 1
400 #endif
402 /**
403 * IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that
404 * this option does not affect outgoing packet sizes, which can be controlled
405 * via IP_FRAG.
406 */
407 #ifndef IP_REASSEMBLY
408 #define IP_REASSEMBLY 1
409 #endif
411 /**
412 * IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note
413 * that this option does not affect incoming packet sizes, which can be
414 * controlled via IP_REASSEMBLY.
415 */
416 #ifndef IP_FRAG
417 #define IP_FRAG 1
418 #endif
420 /**
421 * IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally)
422 * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived
423 * in this time, the whole packet is discarded.
424 */
425 #ifndef IP_REASS_MAXAGE
426 #define IP_REASS_MAXAGE 3
427 #endif
429 /**
430 * IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled.
431 * Since the received pbufs are enqueued, be sure to configure
432 * PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive
433 * packets even if the maximum amount of fragments is enqueued for reassembly!
434 */
435 #ifndef IP_REASS_MAX_PBUFS
436 #define IP_REASS_MAX_PBUFS 10
437 #endif
439 /**
440 * IP_FRAG_USES_STATIC_BUF==1: Use a static MTU-sized buffer for IP
441 * fragmentation. Otherwise pbufs are allocated and reference the original
442 * packet data to be fragmented.
443 */
444 #ifndef IP_FRAG_USES_STATIC_BUF
445 #define IP_FRAG_USES_STATIC_BUF 1
446 #endif
448 /**
449 * IP_FRAG_MAX_MTU: Assumed max MTU on any interface for IP frag buffer
450 * (requires IP_FRAG_USES_STATIC_BUF==1)
451 */
452 #if IP_FRAG_USES_STATIC_BUF && !defined(IP_FRAG_MAX_MTU)
453 #define IP_FRAG_MAX_MTU 1500
454 #endif
456 /**
457 * IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers.
458 */
459 #ifndef IP_DEFAULT_TTL
460 #define IP_DEFAULT_TTL 255
461 #endif
463 /**
464 * IP_SOF_BROADCAST=1: Use the SOF_BROADCAST field to enable broadcast
465 * filter per pcb on udp and raw send operations. To enable broadcast filter
466 * on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1.
467 */
468 #ifndef IP_SOF_BROADCAST
469 #define IP_SOF_BROADCAST 0
470 #endif
472 /**
473 * IP_SOF_BROADCAST_RECV (requires IP_SOF_BROADCAST=1) enable the broadcast
474 * filter on recv operations.
475 */
476 #ifndef IP_SOF_BROADCAST_RECV
477 #define IP_SOF_BROADCAST_RECV 0
478 #endif
480 /*
481 ----------------------------------
482 ---------- ICMP options ----------
483 ----------------------------------
484 */
485 /**
486 * LWIP_ICMP==1: Enable ICMP module inside the IP stack.
487 * Be careful, disable that make your product non-compliant to RFC1122
488 */
489 #ifndef LWIP_ICMP
490 #define LWIP_ICMP 1
491 #endif
493 /**
494 * ICMP_TTL: Default value for Time-To-Live used by ICMP packets.
495 */
496 #ifndef ICMP_TTL
497 #define ICMP_TTL (IP_DEFAULT_TTL)
498 #endif
500 /**
501 * LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only)
502 */
503 #ifndef LWIP_BROADCAST_PING
504 #define LWIP_BROADCAST_PING 0
505 #endif
507 /**
508 * LWIP_MULTICAST_PING==1: respond to multicast pings (default is unicast only)
509 */
510 #ifndef LWIP_MULTICAST_PING
511 #define LWIP_MULTICAST_PING 0
512 #endif
514 /*
515 ---------------------------------
516 ---------- RAW options ----------
517 ---------------------------------
518 */
519 /**
520 * LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
521 */
522 #ifndef LWIP_RAW
523 #define LWIP_RAW 1
524 #endif
526 /**
527 * LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
528 */
529 #ifndef RAW_TTL
530 #define RAW_TTL (IP_DEFAULT_TTL)
531 #endif
533 /*
534 ----------------------------------
535 ---------- DHCP options ----------
536 ----------------------------------
537 */
538 /**
539 * LWIP_DHCP==1: Enable DHCP module.
540 */
541 #ifndef LWIP_DHCP
542 #define LWIP_DHCP 0
543 #endif
545 /**
546 * DHCP_DOES_ARP_CHECK==1: Do an ARP check on the offered address.
547 */
548 #ifndef DHCP_DOES_ARP_CHECK
549 #define DHCP_DOES_ARP_CHECK ((LWIP_DHCP) && (LWIP_ARP))
550 #endif
552 /*
553 ------------------------------------
554 ---------- AUTOIP options ----------
555 ------------------------------------
556 */
557 /**
558 * LWIP_AUTOIP==1: Enable AUTOIP module.
559 */
560 #ifndef LWIP_AUTOIP
561 #define LWIP_AUTOIP 0
562 #endif
564 /**
565 * LWIP_DHCP_AUTOIP_COOP==1: Allow DHCP and AUTOIP to be both enabled on
566 * the same interface at the same time.
567 */
568 #ifndef LWIP_DHCP_AUTOIP_COOP
569 #define LWIP_DHCP_AUTOIP_COOP 0
570 #endif
572 /**
573 * LWIP_DHCP_AUTOIP_COOP_TRIES: Set to the number of DHCP DISCOVER probes
574 * that should be sent before falling back on AUTOIP. This can be set
575 * as low as 1 to get an AutoIP address very quickly, but you should
576 * be prepared to handle a changing IP address when DHCP overrides
577 * AutoIP.
578 */
579 #ifndef LWIP_DHCP_AUTOIP_COOP_TRIES
580 #define LWIP_DHCP_AUTOIP_COOP_TRIES 9
581 #endif
583 /*
584 ----------------------------------
585 ---------- SNMP options ----------
586 ----------------------------------
587 */
588 /**
589 * LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP
590 * transport.
591 */
592 #ifndef LWIP_SNMP
593 #define LWIP_SNMP 0
594 #endif
596 /**
597 * SNMP_CONCURRENT_REQUESTS: Number of concurrent requests the module will
598 * allow. At least one request buffer is required.
599 */
600 #ifndef SNMP_CONCURRENT_REQUESTS
601 #define SNMP_CONCURRENT_REQUESTS 1
602 #endif
604 /**
605 * SNMP_TRAP_DESTINATIONS: Number of trap destinations. At least one trap
606 * destination is required
607 */
608 #ifndef SNMP_TRAP_DESTINATIONS
609 #define SNMP_TRAP_DESTINATIONS 1
610 #endif
612 /**
613 * SNMP_PRIVATE_MIB:
614 */
615 #ifndef SNMP_PRIVATE_MIB
616 #define SNMP_PRIVATE_MIB 0
617 #endif
619 /**
620 * Only allow SNMP write actions that are 'safe' (e.g. disabeling netifs is not
621 * a safe action and disabled when SNMP_SAFE_REQUESTS = 1).
622 * Unsafe requests are disabled by default!
623 */
624 #ifndef SNMP_SAFE_REQUESTS
625 #define SNMP_SAFE_REQUESTS 1
626 #endif
628 /*
629 ----------------------------------
630 ---------- IGMP options ----------
631 ----------------------------------
632 */
633 /**
634 * LWIP_IGMP==1: Turn on IGMP module.
635 */
636 #ifndef LWIP_IGMP
637 #define LWIP_IGMP 0
638 #endif
640 /*
641 ----------------------------------
642 ---------- DNS options -----------
643 ----------------------------------
644 */
645 /**
646 * LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS
647 * transport.
648 */
649 #ifndef LWIP_DNS
650 #define LWIP_DNS 0
651 #endif
653 /** DNS maximum number of entries to maintain locally. */
654 #ifndef DNS_TABLE_SIZE
655 #define DNS_TABLE_SIZE 4
656 #endif
658 /** DNS maximum host name length supported in the name table. */
659 #ifndef DNS_MAX_NAME_LENGTH
660 #define DNS_MAX_NAME_LENGTH 256
661 #endif
663 /** The maximum of DNS servers */
664 #ifndef DNS_MAX_SERVERS
665 #define DNS_MAX_SERVERS 2
666 #endif
668 /** DNS do a name checking between the query and the response. */
669 #ifndef DNS_DOES_NAME_CHECK
670 #define DNS_DOES_NAME_CHECK 1
671 #endif
673 /** DNS use a local buffer if DNS_USES_STATIC_BUF=0, a static one if
674 DNS_USES_STATIC_BUF=1, or a dynamic one if DNS_USES_STATIC_BUF=2.
675 The buffer will be of size DNS_MSG_SIZE */
676 #ifndef DNS_USES_STATIC_BUF
677 #define DNS_USES_STATIC_BUF 1
678 #endif
680 /** DNS message max. size. Default value is RFC compliant. */
681 #ifndef DNS_MSG_SIZE
682 #define DNS_MSG_SIZE 512
683 #endif
685 /** DNS_LOCAL_HOSTLIST: Implements a local host-to-address list. If enabled,
686 * you have to define
687 * #define DNS_LOCAL_HOSTLIST_INIT {{"host1", 0x123}, {"host2", 0x234}}
688 * (an array of structs name/address, where address is an u32_t in network
689 * byte order).
690 *
691 * Instead, you can also use an external function:
692 * #define DNS_LOOKUP_LOCAL_EXTERN(x) extern u32_t my_lookup_function(const char *name)
693 * that returns the IP address or INADDR_NONE if not found.
694 */
695 #ifndef DNS_LOCAL_HOSTLIST
696 #define DNS_LOCAL_HOSTLIST 0
699 /** If this is turned on, the local host-list can be dynamically changed
700 * at runtime. */
701 #ifndef DNS_LOCAL_HOSTLIST_IS_DYNAMIC
702 #define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0
705 /*
706 ---------------------------------
707 ---------- UDP options ----------
708 ---------------------------------
709 */
710 /**
711 * LWIP_UDP==1: Turn on UDP.
712 */
713 #ifndef LWIP_UDP
714 #define LWIP_UDP 1
715 #endif
717 /**
718 * LWIP_UDPLITE==1: Turn on UDP-Lite. (Requires LWIP_UDP)
719 */
720 #ifndef LWIP_UDPLITE
721 #define LWIP_UDPLITE 0
722 #endif
724 /**
725 * UDP_TTL: Default Time-To-Live value.
726 */
727 #ifndef UDP_TTL
728 #define UDP_TTL (IP_DEFAULT_TTL)
729 #endif
731 /**
732 * LWIP_NETBUF_RECVINFO==1: append destination addr and port to every netbuf.
733 */
734 #ifndef LWIP_NETBUF_RECVINFO
735 #define LWIP_NETBUF_RECVINFO 0
736 #endif
738 /*
739 ---------------------------------
740 ---------- TCP options ----------
741 ---------------------------------
742 */
743 /**
744 * LWIP_TCP==1: Turn on TCP.
745 */
746 #ifndef LWIP_TCP
747 #define LWIP_TCP 1
748 #endif
750 /**
751 * TCP_TTL: Default Time-To-Live value.
752 */
753 #ifndef TCP_TTL
754 #define TCP_TTL (IP_DEFAULT_TTL)
755 #endif
757 /**
758 * TCP_WND: The size of a TCP window. This must be at least
759 * (2 * TCP_MSS) for things to work well
760 */
761 #ifndef TCP_WND
762 #define TCP_WND (4 * TCP_MSS)
763 #endif
765 /**
766 * TCP_MAXRTX: Maximum number of retransmissions of data segments.
767 */
768 #ifndef TCP_MAXRTX
769 #define TCP_MAXRTX 12
770 #endif
772 /**
773 * TCP_SYNMAXRTX: Maximum number of retransmissions of SYN segments.
774 */
775 #ifndef TCP_SYNMAXRTX
776 #define TCP_SYNMAXRTX 6
777 #endif
779 /**
780 * TCP_QUEUE_OOSEQ==1: TCP will queue segments that arrive out of order.
781 * Define to 0 if your device is low on memory.
782 */
783 #ifndef TCP_QUEUE_OOSEQ
784 #define TCP_QUEUE_OOSEQ (LWIP_TCP)
785 #endif
787 /**
788 * TCP_MSS: TCP Maximum segment size. (default is 536, a conservative default,
789 * you might want to increase this.)
790 * For the receive side, this MSS is advertised to the remote side
791 * when opening a connection. For the transmit size, this MSS sets
792 * an upper limit on the MSS advertised by the remote host.
793 */
794 #ifndef TCP_MSS
795 #define TCP_MSS 536
796 #endif
798 /**
799 * TCP_CALCULATE_EFF_SEND_MSS: "The maximum size of a segment that TCP really
800 * sends, the 'effective send MSS,' MUST be the smaller of the send MSS (which
801 * reflects the available reassembly buffer size at the remote host) and the
802 * largest size permitted by the IP layer" (RFC 1122)
803 * Setting this to 1 enables code that checks TCP_MSS against the MTU of the
804 * netif used for a connection and limits the MSS if it would be too big otherwise.
805 */
806 #ifndef TCP_CALCULATE_EFF_SEND_MSS
807 #define TCP_CALCULATE_EFF_SEND_MSS 1
808 #endif
811 /**
812 * TCP_SND_BUF: TCP sender buffer space (bytes).
813 */
814 #ifndef TCP_SND_BUF
815 #define TCP_SND_BUF 256
816 #endif
818 /**
819 * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least
820 * as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work.
821 */
822 #ifndef TCP_SND_QUEUELEN
823 #define TCP_SND_QUEUELEN (4 * (TCP_SND_BUF)/(TCP_MSS))
824 #endif
826 /**
827 * TCP_SNDLOWAT: TCP writable space (bytes). This must be less than or equal
828 * to TCP_SND_BUF. It is the amount of space which must be available in the
829 * TCP snd_buf for select to return writable.
830 */
831 #ifndef TCP_SNDLOWAT
832 #define TCP_SNDLOWAT ((TCP_SND_BUF)/2)
833 #endif
835 /**
836 * TCP_LISTEN_BACKLOG: Enable the backlog option for tcp listen pcb.
837 */
838 #ifndef TCP_LISTEN_BACKLOG
839 #define TCP_LISTEN_BACKLOG 0
840 #endif
842 /**
843 * The maximum allowed backlog for TCP listen netconns.
844 * This backlog is used unless another is explicitly specified.
845 * 0xff is the maximum (u8_t).
846 */
847 #ifndef TCP_DEFAULT_LISTEN_BACKLOG
848 #define TCP_DEFAULT_LISTEN_BACKLOG 0xff
849 #endif
851 /**
852 * LWIP_TCP_TIMESTAMPS==1: support the TCP timestamp option.
853 */
854 #ifndef LWIP_TCP_TIMESTAMPS
855 #define LWIP_TCP_TIMESTAMPS 0
856 #endif
858 /**
859 * TCP_WND_UPDATE_THRESHOLD: difference in window to trigger an
860 * explicit window update
861 */
862 #ifndef TCP_WND_UPDATE_THRESHOLD
863 #define TCP_WND_UPDATE_THRESHOLD (TCP_WND / 4)
864 #endif
866 /**
867 * LWIP_EVENT_API and LWIP_CALLBACK_API: Only one of these should be set to 1.
868 * LWIP_EVENT_API==1: The user defines lwip_tcp_event() to receive all
869 * events (accept, sent, etc) that happen in the system.
870 * LWIP_CALLBACK_API==1: The PCB callback function is called directly
871 * for the event.
872 */
873 #ifndef LWIP_EVENT_API
874 #define LWIP_EVENT_API 0
875 #define LWIP_CALLBACK_API 1
876 #else
877 #define LWIP_EVENT_API 1
878 #define LWIP_CALLBACK_API 0
879 #endif
882 /*
883 ----------------------------------
884 ---------- Pbuf options ----------
885 ----------------------------------
886 */
887 /**
888 * PBUF_LINK_HLEN: the number of bytes that should be allocated for a
889 * link level header. The default is 14, the standard value for
890 * Ethernet.
891 */
892 #ifndef PBUF_LINK_HLEN
893 #define PBUF_LINK_HLEN 14
894 #endif
896 /**
897 * PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is
898 * designed to accomodate single full size TCP frame in one pbuf, including
899 * TCP_MSS, IP header, and link header.
900 */
901 #ifndef PBUF_POOL_BUFSIZE
902 #define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN)
903 #endif
905 /*
906 ------------------------------------------------
907 ---------- Network Interfaces options ----------
908 ------------------------------------------------
909 */
910 /**
911 * LWIP_NETIF_HOSTNAME==1: use DHCP_OPTION_HOSTNAME with netif's hostname
912 * field.
913 */
914 #ifndef LWIP_NETIF_HOSTNAME
915 #define LWIP_NETIF_HOSTNAME 0
916 #endif
918 /**
919 * LWIP_NETIF_API==1: Support netif api (in netifapi.c)
920 */
921 #ifndef LWIP_NETIF_API
922 #define LWIP_NETIF_API 0
923 #endif
925 /**
926 * LWIP_NETIF_STATUS_CALLBACK==1: Support a callback function whenever an interface
927 * changes its up/down status (i.e., due to DHCP IP acquistion)
928 */
929 #ifndef LWIP_NETIF_STATUS_CALLBACK
930 #define LWIP_NETIF_STATUS_CALLBACK 0
931 #endif
933 /**
934 * LWIP_NETIF_LINK_CALLBACK==1: Support a callback function from an interface
935 * whenever the link changes (i.e., link down)
936 */
937 #ifndef LWIP_NETIF_LINK_CALLBACK
938 #define LWIP_NETIF_LINK_CALLBACK 0
939 #endif
941 /**
942 * LWIP_NETIF_HWADDRHINT==1: Cache link-layer-address hints (e.g. table
943 * indices) in struct netif. TCP and UDP can make use of this to prevent
944 * scanning the ARP table for every sent packet. While this is faster for big
945 * ARP tables or many concurrent connections, it might be counterproductive
946 * if you have a tiny ARP table or if there never are concurrent connections.
947 */
948 #ifndef LWIP_NETIF_HWADDRHINT
949 #define LWIP_NETIF_HWADDRHINT 0
950 #endif
952 /**
953 * LWIP_NETIF_LOOPBACK==1: Support sending packets with a destination IP
954 * address equal to the netif IP address, looping them back up the stack.
955 */
956 #ifndef LWIP_NETIF_LOOPBACK
957 #define LWIP_NETIF_LOOPBACK 0
958 #endif
960 /**
961 * LWIP_LOOPBACK_MAX_PBUFS: Maximum number of pbufs on queue for loopback
962 * sending for each netif (0 = disabled)
963 */
964 #ifndef LWIP_LOOPBACK_MAX_PBUFS
965 #define LWIP_LOOPBACK_MAX_PBUFS 0
966 #endif
968 /**
969 * LWIP_NETIF_LOOPBACK_MULTITHREADING: Indicates whether threading is enabled in
970 * the system, as netifs must change how they behave depending on this setting
971 * for the LWIP_NETIF_LOOPBACK option to work.
972 * Setting this is needed to avoid reentering non-reentrant functions like
973 * tcp_input().
974 * LWIP_NETIF_LOOPBACK_MULTITHREADING==1: Indicates that the user is using a
975 * multithreaded environment like tcpip.c. In this case, netif->input()
976 * is called directly.
977 * LWIP_NETIF_LOOPBACK_MULTITHREADING==0: Indicates a polling (or NO_SYS) setup.
978 * The packets are put on a list and netif_poll() must be called in
979 * the main application loop.
980 */
981 #ifndef LWIP_NETIF_LOOPBACK_MULTITHREADING
982 #define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS)
983 #endif
985 /**
986 * LWIP_NETIF_TX_SINGLE_PBUF: if this is set to 1, lwIP tries to put all data
987 * to be sent into one single pbuf. This is for compatibility with DMA-enabled
988 * MACs that do not support scatter-gather.
989 * Beware that this might involve CPU-memcpy before transmitting that would not
990 * be needed without this flag! Use this only if you need to!
991 *
992 * @todo: TCP and IP-frag do not work with this, yet:
993 */
994 #ifndef LWIP_NETIF_TX_SINGLE_PBUF
995 #define LWIP_NETIF_TX_SINGLE_PBUF 0
998 /*
999 ------------------------------------
1000 ---------- LOOPIF options ----------
1001 ------------------------------------
1002 */
1003 /**
1004 * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c
1005 */
1006 #ifndef LWIP_HAVE_LOOPIF
1007 #define LWIP_HAVE_LOOPIF 0
1008 #endif
1010 /*
1011 ------------------------------------
1012 ---------- SLIPIF options ----------
1013 ------------------------------------
1014 */
1015 /**
1016 * LWIP_HAVE_SLIPIF==1: Support slip interface and slipif.c
1017 */
1018 #ifndef LWIP_HAVE_SLIPIF
1019 #define LWIP_HAVE_SLIPIF 0
1020 #endif
1022 /*
1023 ------------------------------------
1024 ---------- Thread options ----------
1025 ------------------------------------
1026 */
1027 /**
1028 * TCPIP_THREAD_NAME: The name assigned to the main tcpip thread.
1029 */
1030 #ifndef TCPIP_THREAD_NAME
1032 #endif
1034 /**
1035 * TCPIP_THREAD_STACKSIZE: The stack size used by the main tcpip thread.
1036 * The stack size value itself is platform-dependent, but is passed to
1037 * sys_thread_new() when the thread is created.
1038 */
1039 #ifndef TCPIP_THREAD_STACKSIZE
1040 #define TCPIP_THREAD_STACKSIZE 0
1041 #endif
1043 /**
1044 * TCPIP_THREAD_PRIO: The priority assigned to the main tcpip thread.
1045 * The priority value itself is platform-dependent, but is passed to
1046 * sys_thread_new() when the thread is created.
1047 */
1048 #ifndef TCPIP_THREAD_PRIO
1049 #define TCPIP_THREAD_PRIO 1
1050 #endif
1052 /**
1053 * TCPIP_MBOX_SIZE: The mailbox size for the tcpip thread messages
1054 * The queue size value itself is platform-dependent, but is passed to
1055 * sys_mbox_new() when tcpip_init is called.
1056 */
1057 #ifndef TCPIP_MBOX_SIZE
1058 #define TCPIP_MBOX_SIZE 0
1059 #endif
1061 /**
1062 * SLIPIF_THREAD_NAME: The name assigned to the slipif_loop thread.
1063 */
1064 #ifndef SLIPIF_THREAD_NAME
1066 #endif
1068 /**
1069 * SLIP_THREAD_STACKSIZE: The stack size used by the slipif_loop thread.
1070 * The stack size value itself is platform-dependent, but is passed to
1071 * sys_thread_new() when the thread is created.
1072 */
1073 #ifndef SLIPIF_THREAD_STACKSIZE
1074 #define SLIPIF_THREAD_STACKSIZE 0
1075 #endif
1077 /**
1078 * SLIPIF_THREAD_PRIO: The priority assigned to the slipif_loop thread.
1079 * The priority value itself is platform-dependent, but is passed to
1080 * sys_thread_new() when the thread is created.
1081 */
1082 #ifndef SLIPIF_THREAD_PRIO
1083 #define SLIPIF_THREAD_PRIO 1
1084 #endif
1086 /**
1087 * PPP_THREAD_NAME: The name assigned to the pppMain thread.
1088 */
1089 #ifndef PPP_THREAD_NAME
1091 #endif
1093 /**
1094 * PPP_THREAD_STACKSIZE: The stack size used by the pppMain thread.
1095 * The stack size value itself is platform-dependent, but is passed to
1096 * sys_thread_new() when the thread is created.
1097 */
1098 #ifndef PPP_THREAD_STACKSIZE
1099 #define PPP_THREAD_STACKSIZE 0
1100 #endif
1102 /**
1103 * PPP_THREAD_PRIO: The priority assigned to the pppMain thread.
1104 * The priority value itself is platform-dependent, but is passed to
1105 * sys_thread_new() when the thread is created.
1106 */
1107 #ifndef PPP_THREAD_PRIO
1108 #define PPP_THREAD_PRIO 1
1109 #endif
1111 /**
1112 * DEFAULT_THREAD_NAME: The name assigned to any other lwIP thread.
1113 */
1114 #ifndef DEFAULT_THREAD_NAME
1116 #endif
1118 /**
1119 * DEFAULT_THREAD_STACKSIZE: The stack size used by any other lwIP thread.
1120 * The stack size value itself is platform-dependent, but is passed to
1121 * sys_thread_new() when the thread is created.
1122 */
1123 #ifndef DEFAULT_THREAD_STACKSIZE
1124 #define DEFAULT_THREAD_STACKSIZE 0
1125 #endif
1127 /**
1128 * DEFAULT_THREAD_PRIO: The priority assigned to any other lwIP thread.
1129 * The priority value itself is platform-dependent, but is passed to
1130 * sys_thread_new() when the thread is created.
1131 */
1132 #ifndef DEFAULT_THREAD_PRIO
1133 #define DEFAULT_THREAD_PRIO 1
1134 #endif
1136 /**
1137 * DEFAULT_RAW_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
1138 * NETCONN_RAW. The queue size value itself is platform-dependent, but is passed
1139 * to sys_mbox_new() when the recvmbox is created.
1140 */
1141 #ifndef DEFAULT_RAW_RECVMBOX_SIZE
1142 #define DEFAULT_RAW_RECVMBOX_SIZE 0
1143 #endif
1145 /**
1146 * DEFAULT_UDP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
1147 * NETCONN_UDP. The queue size value itself is platform-dependent, but is passed
1148 * to sys_mbox_new() when the recvmbox is created.
1149 */
1150 #ifndef DEFAULT_UDP_RECVMBOX_SIZE
1151 #define DEFAULT_UDP_RECVMBOX_SIZE 0
1152 #endif
1154 /**
1155 * DEFAULT_TCP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
1156 * NETCONN_TCP. The queue size value itself is platform-dependent, but is passed
1157 * to sys_mbox_new() when the recvmbox is created.
1158 */
1159 #ifndef DEFAULT_TCP_RECVMBOX_SIZE
1160 #define DEFAULT_TCP_RECVMBOX_SIZE 0
1161 #endif
1163 /**
1164 * DEFAULT_ACCEPTMBOX_SIZE: The mailbox size for the incoming connections.
1165 * The queue size value itself is platform-dependent, but is passed to
1166 * sys_mbox_new() when the acceptmbox is created.
1167 */
1168 #ifndef DEFAULT_ACCEPTMBOX_SIZE
1169 #define DEFAULT_ACCEPTMBOX_SIZE 0
1170 #endif
1172 /*
1173 ----------------------------------------------
1174 ---------- Sequential layer options ----------
1175 ----------------------------------------------
1176 */
1177 /**
1178 * LWIP_TCPIP_CORE_LOCKING: (EXPERIMENTAL!)
1179 * Don't use it if you're not an active lwIP project member
1180 */
1181 #ifndef LWIP_TCPIP_CORE_LOCKING
1182 #define LWIP_TCPIP_CORE_LOCKING 0
1183 #endif
1185 /**
1186 * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)
1187 */
1188 #ifndef LWIP_NETCONN
1189 #define LWIP_NETCONN 1
1190 #endif
1192 /*
1193 ------------------------------------
1194 ---------- Socket options ----------
1195 ------------------------------------
1196 */
1197 /**
1198 * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)
1199 */
1200 #ifndef LWIP_SOCKET
1201 #define LWIP_SOCKET 1
1202 #endif
1204 /**
1205 * LWIP_COMPAT_SOCKETS==1: Enable BSD-style sockets functions names.
1206 * (only used if you use sockets.c)
1207 */
1208 #ifndef LWIP_COMPAT_SOCKETS
1209 #define LWIP_COMPAT_SOCKETS 1
1210 #endif
1212 /**
1213 * LWIP_POSIX_SOCKETS_IO_NAMES==1: Enable POSIX-style sockets functions names.
1214 * Disable this option if you use a POSIX operating system that uses the same
1215 * names (read, write & close). (only used if you use sockets.c)
1216 */
1217 #ifndef LWIP_POSIX_SOCKETS_IO_NAMES
1218 #define LWIP_POSIX_SOCKETS_IO_NAMES 1
1219 #endif
1221 /**
1222 * LWIP_TCP_KEEPALIVE==1: Enable TCP_KEEPIDLE, TCP_KEEPINTVL and TCP_KEEPCNT
1223 * options processing. Note that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set
1224 * in seconds. (does not require sockets.c, and will affect tcp.c)
1225 */
1226 #ifndef LWIP_TCP_KEEPALIVE
1227 #define LWIP_TCP_KEEPALIVE 0
1228 #endif
1230 /**
1231 * LWIP_SO_RCVTIMEO==1: Enable SO_RCVTIMEO processing.
1232 */
1233 #ifndef LWIP_SO_RCVTIMEO
1234 #define LWIP_SO_RCVTIMEO 0
1235 #endif
1237 /**
1238 * LWIP_SO_RCVBUF==1: Enable SO_RCVBUF processing.
1239 */
1240 #ifndef LWIP_SO_RCVBUF
1241 #define LWIP_SO_RCVBUF 0
1242 #endif
1244 /**
1245 * If LWIP_SO_RCVBUF is used, this is the default value for recv_bufsize.
1246 */
1247 #ifndef RECV_BUFSIZE_DEFAULT
1248 #define RECV_BUFSIZE_DEFAULT INT_MAX
1249 #endif
1251 /**
1252 * SO_REUSE==1: Enable SO_REUSEADDR and SO_REUSEPORT options. DO NOT USE!
1253 */
1254 #ifndef SO_REUSE
1255 #define SO_REUSE 0
1256 #endif
1258 /*
1259 ----------------------------------------
1260 ---------- Statistics options ----------
1261 ----------------------------------------
1262 */
1263 /**
1264 * LWIP_STATS==1: Enable statistics collection in lwip_stats.
1265 */
1266 #ifndef LWIP_STATS
1267 #define LWIP_STATS 1
1268 #endif
1270 #if LWIP_STATS
1272 /**
1273 * LWIP_STATS_DISPLAY==1: Compile in the statistics output functions.
1274 */
1275 #ifndef LWIP_STATS_DISPLAY
1276 #define LWIP_STATS_DISPLAY 0
1277 #endif
1279 /**
1280 * LINK_STATS==1: Enable link stats.
1281 */
1282 #ifndef LINK_STATS
1283 #define LINK_STATS 1
1284 #endif
1286 /**
1287 * ETHARP_STATS==1: Enable etharp stats.
1288 */
1289 #ifndef ETHARP_STATS
1290 #define ETHARP_STATS (LWIP_ARP)
1291 #endif
1293 /**
1294 * IP_STATS==1: Enable IP stats.
1295 */
1296 #ifndef IP_STATS
1297 #define IP_STATS 1
1298 #endif
1300 /**
1301 * IPFRAG_STATS==1: Enable IP fragmentation stats. Default is
1302 * on if using either frag or reass.
1303 */
1304 #ifndef IPFRAG_STATS
1305 #define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG)
1306 #endif
1308 /**
1309 * ICMP_STATS==1: Enable ICMP stats.
1310 */
1311 #ifndef ICMP_STATS
1312 #define ICMP_STATS 1
1313 #endif
1315 /**
1316 * IGMP_STATS==1: Enable IGMP stats.
1317 */
1318 #ifndef IGMP_STATS
1319 #define IGMP_STATS (LWIP_IGMP)
1320 #endif
1322 /**
1323 * UDP_STATS==1: Enable UDP stats. Default is on if
1324 * UDP enabled, otherwise off.
1325 */
1326 #ifndef UDP_STATS
1327 #define UDP_STATS (LWIP_UDP)
1328 #endif
1330 /**
1331 * TCP_STATS==1: Enable TCP stats. Default is on if TCP
1332 * enabled, otherwise off.
1333 */
1334 #ifndef TCP_STATS
1335 #define TCP_STATS (LWIP_TCP)
1336 #endif
1338 /**
1339 * MEM_STATS==1: Enable mem.c stats.
1340 */
1341 #ifndef MEM_STATS
1342 #define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0))
1343 #endif
1345 /**
1346 * MEMP_STATS==1: Enable memp.c pool stats.
1347 */
1348 #ifndef MEMP_STATS
1349 #define MEMP_STATS (MEMP_MEM_MALLOC == 0)
1350 #endif
1352 /**
1353 * SYS_STATS==1: Enable system stats (sem and mbox counts, etc).
1354 */
1355 #ifndef SYS_STATS
1356 #define SYS_STATS (NO_SYS == 0)
1357 #endif
1359 #else
1361 #define LINK_STATS 0
1362 #define IP_STATS 0
1363 #define IPFRAG_STATS 0
1364 #define ICMP_STATS 0
1365 #define IGMP_STATS 0
1366 #define UDP_STATS 0
1367 #define TCP_STATS 0
1368 #define MEM_STATS 0
1369 #define MEMP_STATS 0
1370 #define SYS_STATS 0
1371 #define LWIP_STATS_DISPLAY 0
1375 /*
1376 ---------------------------------
1377 ---------- PPP options ----------
1378 ---------------------------------
1379 */
1380 /**
1381 * PPP_SUPPORT==1: Enable PPP.
1382 */
1383 #ifndef PPP_SUPPORT
1384 #define PPP_SUPPORT 0
1385 #endif
1387 /**
1388 * PPPOE_SUPPORT==1: Enable PPP Over Ethernet
1389 */
1390 #ifndef PPPOE_SUPPORT
1391 #define PPPOE_SUPPORT 0
1392 #endif
1394 /**
1395 * PPPOS_SUPPORT==1: Enable PPP Over Serial
1396 */
1397 #ifndef PPPOS_SUPPORT
1398 #define PPPOS_SUPPORT PPP_SUPPORT
1399 #endif
1401 #if PPP_SUPPORT
1403 /**
1404 * NUM_PPP: Max PPP sessions.
1405 */
1406 #ifndef NUM_PPP
1407 #define NUM_PPP 1
1408 #endif
1410 /**
1411 * PAP_SUPPORT==1: Support PAP.
1412 */
1413 #ifndef PAP_SUPPORT
1414 #define PAP_SUPPORT 0
1415 #endif
1417 /**
1418 * CHAP_SUPPORT==1: Support CHAP.
1419 */
1420 #ifndef CHAP_SUPPORT
1421 #define CHAP_SUPPORT 0
1422 #endif
1424 /**
1425 * MSCHAP_SUPPORT==1: Support MSCHAP. CURRENTLY NOT SUPPORTED! DO NOT SET!
1426 */
1427 #ifndef MSCHAP_SUPPORT
1428 #define MSCHAP_SUPPORT 0
1429 #endif
1431 /**
1432 * CBCP_SUPPORT==1: Support CBCP. CURRENTLY NOT SUPPORTED! DO NOT SET!
1433 */
1434 #ifndef CBCP_SUPPORT
1435 #define CBCP_SUPPORT 0
1436 #endif
1438 /**
1439 * CCP_SUPPORT==1: Support CCP. CURRENTLY NOT SUPPORTED! DO NOT SET!
1440 */
1441 #ifndef CCP_SUPPORT
1442 #define CCP_SUPPORT 0
1443 #endif
1445 /**
1446 * VJ_SUPPORT==1: Support VJ header compression.
1447 */
1448 #ifndef VJ_SUPPORT
1449 #define VJ_SUPPORT 0
1450 #endif
1452 /**
1453 * MD5_SUPPORT==1: Support MD5 (see also CHAP).
1454 */
1455 #ifndef MD5_SUPPORT
1456 #define MD5_SUPPORT 0
1457 #endif
1459 /*
1460 * Timeouts
1461 */
1462 #ifndef FSM_DEFTIMEOUT
1464 #endif
1466 #ifndef FSM_DEFMAXTERMREQS
1468 #endif
1470 #ifndef FSM_DEFMAXCONFREQS
1472 #endif
1474 #ifndef FSM_DEFMAXNAKLOOPS
1476 #endif
1478 #ifndef UPAP_DEFTIMEOUT
1480 #endif
1482 #ifndef UPAP_DEFREQTIME
1484 #endif
1486 #ifndef CHAP_DEFTIMEOUT
1488 #endif
1490 #ifndef CHAP_DEFTRANSMITS
1492 #endif
1494 /* Interval in seconds between keepalive echo requests, 0 to disable. */
1495 #ifndef LCP_ECHOINTERVAL
1496 #define LCP_ECHOINTERVAL 0
1497 #endif
1499 /* Number of unanswered echo requests before failure. */
1500 #ifndef LCP_MAXECHOFAILS
1501 #define LCP_MAXECHOFAILS 3
1502 #endif
1504 /* Max Xmit idle time (in jiffies) before resend flag char. */
1505 #ifndef PPP_MAXIDLEFLAG
1506 #define PPP_MAXIDLEFLAG 100
1507 #endif
1509 /*
1510 * Packet sizes
1511 *
1512 * Note - lcp shouldn't be allowed to negotiate stuff outside these
1513 * limits. See lcp.h in the pppd directory.
1514 * (XXX - these constants should simply be shared by lcp.c instead
1515 * of living in lcp.h)
1516 */
1518 #ifndef PPP_MAXMTU
1519 /* #define PPP_MAXMTU 65535 - (PPP_HDRLEN + PPP_FCSLEN) */
1521 #endif
1522 #define PPP_MINMTU 64
1525 #ifndef PPP_DEFMRU
1527 #endif
1530 #ifndef MAXNAMELEN
1532 #endif
1533 #ifndef MAXSECRETLEN
1535 #endif
1539 /*
1540 --------------------------------------
1541 ---------- Checksum options ----------
1542 --------------------------------------
1543 */
1544 /**
1545 * CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.
1546 */
1547 #ifndef CHECKSUM_GEN_IP
1548 #define CHECKSUM_GEN_IP 1
1549 #endif
1551 /**
1552 * CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.
1553 */
1554 #ifndef CHECKSUM_GEN_UDP
1555 #define CHECKSUM_GEN_UDP 1
1556 #endif
1558 /**
1559 * CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.
1560 */
1561 #ifndef CHECKSUM_GEN_TCP
1562 #define CHECKSUM_GEN_TCP 1
1563 #endif
1565 /**
1566 * CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.
1567 */
1568 #ifndef CHECKSUM_CHECK_IP
1569 #define CHECKSUM_CHECK_IP 1
1570 #endif
1572 /**
1573 * CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.
1574 */
1575 #ifndef CHECKSUM_CHECK_UDP
1576 #define CHECKSUM_CHECK_UDP 1
1577 #endif
1579 /**
1580 * CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.
1581 */
1582 #ifndef CHECKSUM_CHECK_TCP
1583 #define CHECKSUM_CHECK_TCP 1
1584 #endif
1586 /*
1587 ---------------------------------------
1588 ---------- Debugging options ----------
1589 ---------------------------------------
1590 */
1591 /**
1592 * LWIP_DBG_MIN_LEVEL: After masking, the value of the debug is
1593 * compared against this value. If it is smaller, then debugging
1594 * messages are written.
1595 */
1596 #ifndef LWIP_DBG_MIN_LEVEL
1597 #define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL
1598 #endif
1600 /**
1601 * LWIP_DBG_TYPES_ON: A mask that can be used to globally enable/disable
1602 * debug messages of certain types.
1603 */
1604 #ifndef LWIP_DBG_TYPES_ON
1605 #define LWIP_DBG_TYPES_ON LWIP_DBG_ON
1606 #endif
1608 /**
1609 * ETHARP_DEBUG: Enable debugging in etharp.c.
1610 */
1611 #ifndef ETHARP_DEBUG
1612 #define ETHARP_DEBUG LWIP_DBG_OFF
1613 #endif
1615 /**
1616 * NETIF_DEBUG: Enable debugging in netif.c.
1617 */
1618 #ifndef NETIF_DEBUG
1619 #define NETIF_DEBUG LWIP_DBG_OFF
1620 #endif
1622 /**
1623 * PBUF_DEBUG: Enable debugging in pbuf.c.
1624 */
1625 #ifndef PBUF_DEBUG
1626 #define PBUF_DEBUG LWIP_DBG_OFF
1627 #endif
1629 /**
1630 * API_LIB_DEBUG: Enable debugging in api_lib.c.
1631 */
1632 #ifndef API_LIB_DEBUG
1633 #define API_LIB_DEBUG LWIP_DBG_OFF
1634 #endif
1636 /**
1637 * API_MSG_DEBUG: Enable debugging in api_msg.c.
1638 */
1639 #ifndef API_MSG_DEBUG
1640 #define API_MSG_DEBUG LWIP_DBG_OFF
1641 #endif
1643 /**
1644 * SOCKETS_DEBUG: Enable debugging in sockets.c.
1645 */
1646 #ifndef SOCKETS_DEBUG
1647 #define SOCKETS_DEBUG LWIP_DBG_OFF
1648 #endif
1650 /**
1651 * ICMP_DEBUG: Enable debugging in icmp.c.
1652 */
1653 #ifndef ICMP_DEBUG
1654 #define ICMP_DEBUG LWIP_DBG_OFF
1655 #endif
1657 /**
1658 * IGMP_DEBUG: Enable debugging in igmp.c.
1659 */
1660 #ifndef IGMP_DEBUG
1661 #define IGMP_DEBUG LWIP_DBG_OFF
1662 #endif
1664 /**
1665 * INET_DEBUG: Enable debugging in inet.c.
1666 */
1667 #ifndef INET_DEBUG
1668 #define INET_DEBUG LWIP_DBG_OFF
1669 #endif
1671 /**
1672 * IP_DEBUG: Enable debugging for IP.
1673 */
1674 #ifndef IP_DEBUG
1675 #define IP_DEBUG LWIP_DBG_OFF
1676 #endif
1678 /**
1679 * IP_REASS_DEBUG: Enable debugging in ip_frag.c for both frag & reass.
1680 */
1681 #ifndef IP_REASS_DEBUG
1682 #define IP_REASS_DEBUG LWIP_DBG_OFF
1683 #endif
1685 /**
1686 * RAW_DEBUG: Enable debugging in raw.c.
1687 */
1688 #ifndef RAW_DEBUG
1689 #define RAW_DEBUG LWIP_DBG_OFF
1690 #endif
1692 /**
1693 * MEM_DEBUG: Enable debugging in mem.c.
1694 */
1695 #ifndef MEM_DEBUG
1696 #define MEM_DEBUG LWIP_DBG_OFF
1697 #endif
1699 /**
1700 * MEMP_DEBUG: Enable debugging in memp.c.
1701 */
1702 #ifndef MEMP_DEBUG
1703 #define MEMP_DEBUG LWIP_DBG_OFF
1704 #endif
1706 /**
1707 * SYS_DEBUG: Enable debugging in sys.c.
1708 */
1709 #ifndef SYS_DEBUG
1710 #define SYS_DEBUG LWIP_DBG_OFF
1711 #endif
1713 /**
1714 * TCP_DEBUG: Enable debugging for TCP.
1715 */
1716 #ifndef TCP_DEBUG
1717 #define TCP_DEBUG LWIP_DBG_OFF
1718 #endif
1720 /**
1721 * TCP_INPUT_DEBUG: Enable debugging in tcp_in.c for incoming debug.
1722 */
1723 #ifndef TCP_INPUT_DEBUG
1724 #define TCP_INPUT_DEBUG LWIP_DBG_OFF
1725 #endif
1727 /**
1728 * TCP_FR_DEBUG: Enable debugging in tcp_in.c for fast retransmit.
1729 */
1730 #ifndef TCP_FR_DEBUG
1731 #define TCP_FR_DEBUG LWIP_DBG_OFF
1732 #endif
1734 /**
1735 * TCP_RTO_DEBUG: Enable debugging in TCP for retransmit
1736 * timeout.
1737 */
1738 #ifndef TCP_RTO_DEBUG
1739 #define TCP_RTO_DEBUG LWIP_DBG_OFF
1740 #endif
1742 /**
1743 * TCP_CWND_DEBUG: Enable debugging for TCP congestion window.
1744 */
1745 #ifndef TCP_CWND_DEBUG
1746 #define TCP_CWND_DEBUG LWIP_DBG_OFF
1747 #endif
1749 /**
1750 * TCP_WND_DEBUG: Enable debugging in tcp_in.c for window updating.
1751 */
1752 #ifndef TCP_WND_DEBUG
1753 #define TCP_WND_DEBUG LWIP_DBG_OFF
1754 #endif
1756 /**
1757 * TCP_OUTPUT_DEBUG: Enable debugging in tcp_out.c output functions.
1758 */
1759 #ifndef TCP_OUTPUT_DEBUG
1760 #define TCP_OUTPUT_DEBUG LWIP_DBG_OFF
1761 #endif
1763 /**
1764 * TCP_RST_DEBUG: Enable debugging for TCP with the RST message.
1765 */
1766 #ifndef TCP_RST_DEBUG
1767 #define TCP_RST_DEBUG LWIP_DBG_OFF
1768 #endif
1770 /**
1771 * TCP_QLEN_DEBUG: Enable debugging for TCP queue lengths.
1772 */
1773 #ifndef TCP_QLEN_DEBUG
1774 #define TCP_QLEN_DEBUG LWIP_DBG_OFF
1775 #endif
1777 /**
1778 * UDP_DEBUG: Enable debugging in UDP.
1779 */
1780 #ifndef UDP_DEBUG
1781 #define UDP_DEBUG LWIP_DBG_OFF
1782 #endif
1784 /**
1785 * TCPIP_DEBUG: Enable debugging in tcpip.c.
1786 */
1787 #ifndef TCPIP_DEBUG
1788 #define TCPIP_DEBUG LWIP_DBG_OFF
1789 #endif
1791 /**
1792 * PPP_DEBUG: Enable debugging for PPP.
1793 */
1794 #ifndef PPP_DEBUG
1795 #define PPP_DEBUG LWIP_DBG_OFF
1796 #endif
1798 /**
1799 * SLIP_DEBUG: Enable debugging in slipif.c.
1800 */
1801 #ifndef SLIP_DEBUG
1802 #define SLIP_DEBUG LWIP_DBG_OFF
1803 #endif
1805 /**
1806 * DHCP_DEBUG: Enable debugging in dhcp.c.
1807 */
1808 #ifndef DHCP_DEBUG
1809 #define DHCP_DEBUG LWIP_DBG_OFF
1810 #endif
1812 /**
1813 * AUTOIP_DEBUG: Enable debugging in autoip.c.
1814 */
1815 #ifndef AUTOIP_DEBUG
1816 #define AUTOIP_DEBUG LWIP_DBG_OFF
1817 #endif
1819 /**
1820 * SNMP_MSG_DEBUG: Enable debugging for SNMP messages.
1821 */
1822 #ifndef SNMP_MSG_DEBUG
1823 #define SNMP_MSG_DEBUG LWIP_DBG_OFF
1824 #endif
1826 /**
1827 * SNMP_MIB_DEBUG: Enable debugging for SNMP MIBs.
1828 */
1829 #ifndef SNMP_MIB_DEBUG
1830 #define SNMP_MIB_DEBUG LWIP_DBG_OFF
1831 #endif
1833 /**
1834 * DNS_DEBUG: Enable debugging for DNS.
1835 */
1836 #ifndef DNS_DEBUG
1837 #define DNS_DEBUG LWIP_DBG_OFF
1838 #endif