opt.h

00001 /**
00002  * @file
00003  *
00004  * lwIP Options Configuration
00005  */
00006 
00007 /*
00008  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
00009  * All rights reserved.
00010  *
00011  * Redistribution and use in source and binary forms, with or without modification,
00012  * are permitted provided that the following conditions are met:
00013  *
00014  * 1. Redistributions of source code must retain the above copyright notice,
00015  *    this list of conditions and the following disclaimer.
00016  * 2. Redistributions in binary form must reproduce the above copyright notice,
00017  *    this list of conditions and the following disclaimer in the documentation
00018  *    and/or other materials provided with the distribution.
00019  * 3. The name of the author may not be used to endorse or promote products
00020  *    derived from this software without specific prior written permission.
00021  *
00022  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
00023  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
00024  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
00025  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00026  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
00027  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00028  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00029  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
00030  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
00031  * OF SUCH DAMAGE.
00032  *
00033  * This file is part of the lwIP TCP/IP stack.
00034  *
00035  * Author: Adam Dunkels <adam@sics.se>
00036  *
00037  */
00038 #ifndef __LWIP_OPT_H__
00039 #define __LWIP_OPT_H__
00040 
00041 /*
00042  * Include user defined options first. Anything not defined in these files
00043  * will be set to standard values. Override anything you dont like!
00044  */
00045 #include "lwipopts.h"
00046 #include "lwip/debug.h"
00047 
00048 /*
00049    -----------------------------------------------
00050    ---------- Platform specific locking ----------
00051    -----------------------------------------------
00052 */
00053 
00054 /**
00055  * SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain
00056  * critical regions during buffer allocation, deallocation and memory
00057  * allocation and deallocation.
00058  */
00059 #ifndef SYS_LIGHTWEIGHT_PROT
00060 #define SYS_LIGHTWEIGHT_PROT            0
00061 #endif
00062 
00063 /**
00064  * NO_SYS==1: Provides VERY minimal functionality. Otherwise,
00065  * use lwIP facilities.
00066  */
00067 #ifndef NO_SYS
00068 #define NO_SYS                          0
00069 #endif
00070 
00071 /**
00072  * NO_SYS_NO_TIMERS==1: Drop support for sys_timeout when NO_SYS==1
00073  * Mainly for compatibility to old versions.
00074  */
00075 #ifndef NO_SYS_NO_TIMERS
00076 #define NO_SYS_NO_TIMERS                0
00077 #endif
00078 
00079 /**
00080  * MEMCPY: override this if you have a faster implementation at hand than the
00081  * one included in your C library
00082  */
00083 #ifndef MEMCPY
00084 #define MEMCPY(dst,src,len)             memcpy(dst,src,len)
00085 #endif
00086 
00087 /**
00088  * SMEMCPY: override this with care! Some compilers (e.g. gcc) can inline a
00089  * call to memcpy() if the length is known at compile time and is small.
00090  */
00091 #ifndef SMEMCPY
00092 #define SMEMCPY(dst,src,len)            memcpy(dst,src,len)
00093 #endif
00094 
00095 /*
00096    ------------------------------------
00097    ---------- Memory options ----------
00098    ------------------------------------
00099 */
00100 /**
00101  * MEM_LIBC_MALLOC==1: Use malloc/free/realloc provided by your C-library
00102  * instead of the lwip internal allocator. Can save code size if you
00103  * already use it.
00104  */
00105 #ifndef MEM_LIBC_MALLOC
00106 #define MEM_LIBC_MALLOC                 0
00107 #endif
00108 
00109 /**
00110 * MEMP_MEM_MALLOC==1: Use mem_malloc/mem_free instead of the lwip pool allocator.
00111 * Especially useful with MEM_LIBC_MALLOC but handle with care regarding execution
00112 * speed and usage from interrupts!
00113 */
00114 #ifndef MEMP_MEM_MALLOC
00115 #define MEMP_MEM_MALLOC                 0
00116 #endif
00117 
00118 /**
00119  * MEM_ALIGNMENT: should be set to the alignment of the CPU
00120  *    4 byte alignment -> #define MEM_ALIGNMENT 4
00121  *    2 byte alignment -> #define MEM_ALIGNMENT 2
00122  */
00123 #ifndef MEM_ALIGNMENT
00124 #define MEM_ALIGNMENT                   1
00125 #endif
00126 
00127 /**
00128  * MEM_SIZE: the size of the heap memory. If the application will send
00129  * a lot of data that needs to be copied, this should be set high.
00130  */
00131 #ifndef MEM_SIZE
00132 #define MEM_SIZE                        1600
00133 #endif
00134 
00135 /**
00136  * MEMP_SEPARATE_POOLS: if defined to 1, each pool is placed in its own array.
00137  * This can be used to individually change the location of each pool.
00138  * Default is one big array for all pools
00139  */
00140 #ifndef MEMP_SEPARATE_POOLS
00141 #define MEMP_SEPARATE_POOLS             0
00142 #endif
00143 
00144 /**
00145  * MEMP_OVERFLOW_CHECK: memp overflow protection reserves a configurable
00146  * amount of bytes before and after each memp element in every pool and fills
00147  * it with a prominent default value.
00148  *    MEMP_OVERFLOW_CHECK == 0 no checking
00149  *    MEMP_OVERFLOW_CHECK == 1 checks each element when it is freed
00150  *    MEMP_OVERFLOW_CHECK >= 2 checks each element in every pool every time
00151  *      memp_malloc() or memp_free() is called (useful but slow!)
00152  */
00153 #ifndef MEMP_OVERFLOW_CHECK
00154 #define MEMP_OVERFLOW_CHECK             0
00155 #endif
00156 
00157 /**
00158  * MEMP_SANITY_CHECK==1: run a sanity check after each memp_free() to make
00159  * sure that there are no cycles in the linked lists.
00160  */
00161 #ifndef MEMP_SANITY_CHECK
00162 #define MEMP_SANITY_CHECK               0
00163 #endif
00164 
00165 /**
00166  * MEM_USE_POOLS==1: Use an alternative to malloc() by allocating from a set
00167  * of memory pools of various sizes. When mem_malloc is called, an element of
00168  * the smallest pool that can provide the length needed is returned.
00169  * To use this, MEMP_USE_CUSTOM_POOLS also has to be enabled.
00170  */
00171 #ifndef MEM_USE_POOLS
00172 #define MEM_USE_POOLS                   0
00173 #endif
00174 
00175 /**
00176  * MEM_USE_POOLS_TRY_BIGGER_POOL==1: if one malloc-pool is empty, try the next
00177  * bigger pool - WARNING: THIS MIGHT WASTE MEMORY but it can make a system more
00178  * reliable. */
00179 #ifndef MEM_USE_POOLS_TRY_BIGGER_POOL
00180 #define MEM_USE_POOLS_TRY_BIGGER_POOL   0
00181 #endif
00182 
00183 /**
00184  * MEMP_USE_CUSTOM_POOLS==1: whether to include a user file lwippools.h
00185  * that defines additional pools beyond the "standard" ones required
00186  * by lwIP. If you set this to 1, you must have lwippools.h in your
00187  * inlude path somewhere.
00188  */
00189 #ifndef MEMP_USE_CUSTOM_POOLS
00190 #define MEMP_USE_CUSTOM_POOLS           0
00191 #endif
00192 
00193 /**
00194  * Set this to 1 if you want to free PBUF_RAM pbufs (or call mem_free()) from
00195  * interrupt context (or another context that doesn't allow waiting for a
00196  * semaphore).
00197  * If set to 1, mem_malloc will be protected by a semaphore and SYS_ARCH_PROTECT,
00198  * while mem_free will only use SYS_ARCH_PROTECT. mem_malloc SYS_ARCH_UNPROTECTs
00199  * with each loop so that mem_free can run.
00200  *
00201  * ATTENTION: As you can see from the above description, this leads to dis-/
00202  * enabling interrupts often, which can be slow! Also, on low memory, mem_malloc
00203  * can need longer.
00204  *
00205  * If you don't want that, at least for NO_SYS=0, you can still use the following
00206  * functions to enqueue a deallocation call which then runs in the tcpip_thread
00207  * context:
00208  * - pbuf_free_callback(p);
00209  * - mem_free_callback(m);
00210  */
00211 #ifndef LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT
00212 #define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0
00213 #endif
00214 
00215 /*
00216    ------------------------------------------------
00217    ---------- Internal Memory Pool Sizes ----------
00218    ------------------------------------------------
00219 */
00220 /**
00221  * MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF).
00222  * If the application sends a lot of data out of ROM (or other static memory),
00223  * this should be set high.
00224  */
00225 #ifndef MEMP_NUM_PBUF
00226 #define MEMP_NUM_PBUF                   16
00227 #endif
00228 
00229 /**
00230  * MEMP_NUM_RAW_PCB: Number of raw connection PCBs
00231  * (requires the LWIP_RAW option)
00232  */
00233 #ifndef MEMP_NUM_RAW_PCB
00234 #define MEMP_NUM_RAW_PCB                4
00235 #endif
00236 
00237 /**
00238  * MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
00239  * per active UDP "connection".
00240  * (requires the LWIP_UDP option)
00241  */
00242 #ifndef MEMP_NUM_UDP_PCB
00243 #define MEMP_NUM_UDP_PCB                4
00244 #endif
00245 
00246 /**
00247  * MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections.
00248  * (requires the LWIP_TCP option)
00249  */
00250 #ifndef MEMP_NUM_TCP_PCB
00251 #define MEMP_NUM_TCP_PCB                5
00252 #endif
00253 
00254 /**
00255  * MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
00256  * (requires the LWIP_TCP option)
00257  */
00258 #ifndef MEMP_NUM_TCP_PCB_LISTEN
00259 #define MEMP_NUM_TCP_PCB_LISTEN         8
00260 #endif
00261 
00262 /**
00263  * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
00264  * (requires the LWIP_TCP option)
00265  */
00266 #ifndef MEMP_NUM_TCP_SEG
00267 #define MEMP_NUM_TCP_SEG                16
00268 #endif
00269 
00270 /**
00271  * MEMP_NUM_REASSDATA: the number of IP packets simultaneously queued for
00272  * reassembly (whole packets, not fragments!)
00273  */
00274 #ifndef MEMP_NUM_REASSDATA
00275 #define MEMP_NUM_REASSDATA              5
00276 #endif
00277 
00278 /**
00279  * MEMP_NUM_FRAG_PBUF: the number of IP fragments simultaneously sent
00280  * (fragments, not whole packets!).
00281  * This is only used with IP_FRAG_USES_STATIC_BUF==0 and
00282  * LWIP_NETIF_TX_SINGLE_PBUF==0 and only has to be > 1 with DMA-enabled MACs
00283  * where the packet is not yet sent when netif->output returns.
00284  */
00285 #ifndef MEMP_NUM_FRAG_PBUF
00286 #define MEMP_NUM_FRAG_PBUF              15
00287 #endif
00288 
00289 /**
00290  * MEMP_NUM_ARP_QUEUE: the number of simulateously queued outgoing
00291  * packets (pbufs) that are waiting for an ARP request (to resolve
00292  * their destination address) to finish.
00293  * (requires the ARP_QUEUEING option)
00294  */
00295 #ifndef MEMP_NUM_ARP_QUEUE
00296 #define MEMP_NUM_ARP_QUEUE              30
00297 #endif
00298 
00299 /**
00300  * MEMP_NUM_IGMP_GROUP: The number of multicast groups whose network interfaces
00301  * can be members et the same time (one per netif - allsystems group -, plus one
00302  * per netif membership).
00303  * (requires the LWIP_IGMP option)
00304  */
00305 #ifndef MEMP_NUM_IGMP_GROUP
00306 #define MEMP_NUM_IGMP_GROUP             8
00307 #endif
00308 
00309 /**
00310  * MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts.
00311  * (requires NO_SYS==0)
00312  * The default number of timeouts is calculated here for all enabled modules.
00313  * The formula expects settings to be either '0' or '1'.
00314  */
00315 #ifndef MEMP_NUM_SYS_TIMEOUT
00316 #define MEMP_NUM_SYS_TIMEOUT            (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_AUTOIP + LWIP_IGMP + LWIP_DNS + PPP_SUPPORT)
00317 #endif
00318 
00319 /**
00320  * MEMP_NUM_NETBUF: the number of struct netbufs.
00321  * (only needed if you use the sequential API, like api_lib.c)
00322  */
00323 #ifndef MEMP_NUM_NETBUF
00324 #define MEMP_NUM_NETBUF                 2
00325 #endif
00326 
00327 /**
00328  * MEMP_NUM_NETCONN: the number of struct netconns.
00329  * (only needed if you use the sequential API, like api_lib.c)
00330  */
00331 #ifndef MEMP_NUM_NETCONN
00332 #define MEMP_NUM_NETCONN                4
00333 #endif
00334 
00335 /**
00336  * MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used
00337  * for callback/timeout API communication.
00338  * (only needed if you use tcpip.c)
00339  */
00340 #ifndef MEMP_NUM_TCPIP_MSG_API
00341 #define MEMP_NUM_TCPIP_MSG_API          8
00342 #endif
00343 
00344 /**
00345  * MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used
00346  * for incoming packets.
00347  * (only needed if you use tcpip.c)
00348  */
00349 #ifndef MEMP_NUM_TCPIP_MSG_INPKT
00350 #define MEMP_NUM_TCPIP_MSG_INPKT        8
00351 #endif
00352 
00353 /**
00354  * MEMP_NUM_SNMP_NODE: the number of leafs in the SNMP tree.
00355  */
00356 #ifndef MEMP_NUM_SNMP_NODE
00357 #define MEMP_NUM_SNMP_NODE              50
00358 #endif
00359 
00360 /**
00361  * MEMP_NUM_SNMP_ROOTNODE: the number of branches in the SNMP tree.
00362  * Every branch has one leaf (MEMP_NUM_SNMP_NODE) at least!
00363  */
00364 #ifndef MEMP_NUM_SNMP_ROOTNODE
00365 #define MEMP_NUM_SNMP_ROOTNODE          30
00366 #endif
00367 
00368 /**
00369  * MEMP_NUM_SNMP_VARBIND: the number of concurrent requests (does not have to
00370  * be changed normally) - 2 of these are used per request (1 for input,
00371  * 1 for output)
00372  */
00373 #ifndef MEMP_NUM_SNMP_VARBIND
00374 #define MEMP_NUM_SNMP_VARBIND           2
00375 #endif
00376 
00377 /**
00378  * MEMP_NUM_SNMP_VALUE: the number of OID or values concurrently used
00379  * (does not have to be changed normally) - 3 of these are used per request
00380  * (1 for the value read and 2 for OIDs - input and output)
00381  */
00382 #ifndef MEMP_NUM_SNMP_VALUE
00383 #define MEMP_NUM_SNMP_VALUE             3
00384 #endif
00385 
00386 /**
00387  * MEMP_NUM_NETDB: the number of concurrently running lwip_addrinfo() calls
00388  * (before freeing the corresponding memory using lwip_freeaddrinfo()).
00389  */
00390 #ifndef MEMP_NUM_NETDB
00391 #define MEMP_NUM_NETDB                  1
00392 #endif
00393 
00394 /**
00395  * MEMP_NUM_LOCALHOSTLIST: the number of host entries in the local host list
00396  * if DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1.
00397  */
00398 #ifndef MEMP_NUM_LOCALHOSTLIST
00399 #define MEMP_NUM_LOCALHOSTLIST          1
00400 #endif
00401 
00402 /**
00403  * MEMP_NUM_PPPOE_INTERFACES: the number of concurrently active PPPoE
00404  * interfaces (only used with PPPOE_SUPPORT==1)
00405  */
00406 #ifndef MEMP_NUM_PPPOE_INTERFACES
00407 #define MEMP_NUM_PPPOE_INTERFACES       1
00408 #endif
00409 
00410 /**
00411  * PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
00412  */
00413 #ifndef PBUF_POOL_SIZE
00414 #define PBUF_POOL_SIZE                  16
00415 #endif
00416 
00417 /*
00418    ---------------------------------
00419    ---------- ARP options ----------
00420    ---------------------------------
00421 */
00422 /**
00423  * LWIP_ARP==1: Enable ARP functionality.
00424  */
00425 #ifndef LWIP_ARP
00426 #define LWIP_ARP                        1
00427 #endif
00428 
00429 /**
00430  * ARP_TABLE_SIZE: Number of active MAC-IP address pairs cached.
00431  */
00432 #ifndef ARP_TABLE_SIZE
00433 #define ARP_TABLE_SIZE                  10
00434 #endif
00435 
00436 /**
00437  * ARP_QUEUEING==1: Multiple outgoing packets are queued during hardware address
00438  * resolution. By default, only the most recent packet is queued per IP address.
00439  * This is sufficient for most protocols and mainly reduces TCP connection
00440  * startup time. Set this to 1 if you know your application sends more than one
00441  * packet in a row to an IP address that is not in the ARP cache.
00442  */
00443 #ifndef ARP_QUEUEING
00444 #define ARP_QUEUEING                    0
00445 #endif
00446 
00447 /**
00448  * ETHARP_TRUST_IP_MAC==1: Incoming IP packets cause the ARP table to be
00449  * updated with the source MAC and IP addresses supplied in the packet.
00450  * You may want to disable this if you do not trust LAN peers to have the
00451  * correct addresses, or as a limited approach to attempt to handle
00452  * spoofing. If disabled, lwIP will need to make a new ARP request if
00453  * the peer is not already in the ARP table, adding a little latency.
00454  * The peer *is* in the ARP table if it requested our address before.
00455  * Also notice that this slows down input processing of every IP packet!
00456  */
00457 #ifndef ETHARP_TRUST_IP_MAC
00458 #define ETHARP_TRUST_IP_MAC             0
00459 #endif
00460 
00461 /**
00462  * ETHARP_SUPPORT_VLAN==1: support receiving ethernet packets with VLAN header.
00463  * Additionally, you can define ETHARP_VLAN_CHECK to an u16_t VLAN ID to check.
00464  * If ETHARP_VLAN_CHECK is defined, only VLAN-traffic for this VLAN is accepted.
00465  * If ETHARP_VLAN_CHECK is not defined, all traffic is accepted.
00466  * Alternatively, define a function/define ETHARP_VLAN_CHECK_FN(eth_hdr, vlan)
00467  * that returns 1 to accept a packet or 0 to drop a packet.
00468  */
00469 #ifndef ETHARP_SUPPORT_VLAN
00470 #define ETHARP_SUPPORT_VLAN             0
00471 #endif
00472 
00473 /** LWIP_ETHERNET==1: enable ethernet support for PPPoE even though ARP
00474  * might be disabled
00475  */
00476 #ifndef LWIP_ETHERNET
00477 #define LWIP_ETHERNET                   (LWIP_ARP || PPPOE_SUPPORT)
00478 #endif
00479 
00480 /** ETH_PAD_SIZE: number of bytes added before the ethernet header to ensure
00481  * alignment of payload after that header. Since the header is 14 bytes long,
00482  * without this padding e.g. addresses in the IP header will not be aligned
00483  * on a 32-bit boundary, so setting this to 2 can speed up 32-bit-platforms.
00484  */
00485 #ifndef ETH_PAD_SIZE
00486 #define ETH_PAD_SIZE                    0
00487 #endif
00488 
00489 /** ETHARP_SUPPORT_STATIC_ENTRIES==1: enable code to support static ARP table
00490  * entries (using etharp_add_static_entry/etharp_remove_static_entry).
00491  */
00492 #ifndef ETHARP_SUPPORT_STATIC_ENTRIES
00493 #define ETHARP_SUPPORT_STATIC_ENTRIES   0
00494 #endif
00495 
00496 
00497 /*
00498    --------------------------------
00499    ---------- IP options ----------
00500    --------------------------------
00501 */
00502 /**
00503  * IP_FORWARD==1: Enables the ability to forward IP packets across network
00504  * interfaces. If you are going to run lwIP on a device with only one network
00505  * interface, define this to 0.
00506  */
00507 #ifndef IP_FORWARD
00508 #define IP_FORWARD                      0
00509 #endif
00510 
00511 /**
00512  * IP_OPTIONS_ALLOWED: Defines the behavior for IP options.
00513  *      IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped.
00514  *      IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed).
00515  */
00516 #ifndef IP_OPTIONS_ALLOWED
00517 #define IP_OPTIONS_ALLOWED              1
00518 #endif
00519 
00520 /**
00521  * IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that
00522  * this option does not affect outgoing packet sizes, which can be controlled
00523  * via IP_FRAG.
00524  */
00525 #ifndef IP_REASSEMBLY
00526 #define IP_REASSEMBLY                   1
00527 #endif
00528 
00529 /**
00530  * IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note
00531  * that this option does not affect incoming packet sizes, which can be
00532  * controlled via IP_REASSEMBLY.
00533  */
00534 #ifndef IP_FRAG
00535 #define IP_FRAG                         1
00536 #endif
00537 
00538 /**
00539  * IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally)
00540  * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived
00541  * in this time, the whole packet is discarded.
00542  */
00543 #ifndef IP_REASS_MAXAGE
00544 #define IP_REASS_MAXAGE                 3
00545 #endif
00546 
00547 /**
00548  * IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled.
00549  * Since the received pbufs are enqueued, be sure to configure
00550  * PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive
00551  * packets even if the maximum amount of fragments is enqueued for reassembly!
00552  */
00553 #ifndef IP_REASS_MAX_PBUFS
00554 #define IP_REASS_MAX_PBUFS              10
00555 #endif
00556 
00557 /**
00558  * IP_FRAG_USES_STATIC_BUF==1: Use a static MTU-sized buffer for IP
00559  * fragmentation. Otherwise pbufs are allocated and reference the original
00560  * packet data to be fragmented (or with LWIP_NETIF_TX_SINGLE_PBUF==1,
00561  * new PBUF_RAM pbufs are used for fragments).
00562  * ATTENTION: IP_FRAG_USES_STATIC_BUF==1 may not be used for DMA-enabled MACs!
00563  */
00564 #ifndef IP_FRAG_USES_STATIC_BUF
00565 #define IP_FRAG_USES_STATIC_BUF         0
00566 #endif
00567 
00568 /**
00569  * IP_FRAG_MAX_MTU: Assumed max MTU on any interface for IP frag buffer
00570  * (requires IP_FRAG_USES_STATIC_BUF==1)
00571  */
00572 #if IP_FRAG_USES_STATIC_BUF && !defined(IP_FRAG_MAX_MTU)
00573 #define IP_FRAG_MAX_MTU                 1500
00574 #endif
00575 
00576 /**
00577  * IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers.
00578  */
00579 #ifndef IP_DEFAULT_TTL
00580 #define IP_DEFAULT_TTL                  255
00581 #endif
00582 
00583 /**
00584  * IP_SOF_BROADCAST=1: Use the SOF_BROADCAST field to enable broadcast
00585  * filter per pcb on udp and raw send operations. To enable broadcast filter
00586  * on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1.
00587  */
00588 #ifndef IP_SOF_BROADCAST
00589 #define IP_SOF_BROADCAST                0
00590 #endif
00591 
00592 /**
00593  * IP_SOF_BROADCAST_RECV (requires IP_SOF_BROADCAST=1) enable the broadcast
00594  * filter on recv operations.
00595  */
00596 #ifndef IP_SOF_BROADCAST_RECV
00597 #define IP_SOF_BROADCAST_RECV           0
00598 #endif
00599 
00600 /**
00601  * IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1: allow ip_forward() to send packets back
00602  * out on the netif where it was received. This should only be used for
00603  * wireless networks.
00604  * ATTENTION: When this is 1, make sure your netif driver correctly marks incoming
00605  * link-layer-broadcast/multicast packets as such using the corresponding pbuf flags!
00606  */
00607 #ifndef IP_FORWARD_ALLOW_TX_ON_RX_NETIF
00608 #define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0
00609 #endif
00610 
00611 /**
00612  * LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS==1: randomize the local port for the first
00613  * local TCP/UDP pcb (default==0). This can prevent creating predictable port
00614  * numbers after booting a device.
00615  */
00616 #ifndef LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS
00617 #define LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS 0
00618 #endif
00619 
00620 /*
00621    ----------------------------------
00622    ---------- ICMP options ----------
00623    ----------------------------------
00624 */
00625 /**
00626  * LWIP_ICMP==1: Enable ICMP module inside the IP stack.
00627  * Be careful, disable that make your product non-compliant to RFC1122
00628  */
00629 #ifndef LWIP_ICMP
00630 #define LWIP_ICMP                       1
00631 #endif
00632 
00633 /**
00634  * ICMP_TTL: Default value for Time-To-Live used by ICMP packets.
00635  */
00636 #ifndef ICMP_TTL
00637 #define ICMP_TTL                       (IP_DEFAULT_TTL)
00638 #endif
00639 
00640 /**
00641  * LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only)
00642  */
00643 #ifndef LWIP_BROADCAST_PING
00644 #define LWIP_BROADCAST_PING             0
00645 #endif
00646 
00647 /**
00648  * LWIP_MULTICAST_PING==1: respond to multicast pings (default is unicast only)
00649  */
00650 #ifndef LWIP_MULTICAST_PING
00651 #define LWIP_MULTICAST_PING             0
00652 #endif
00653 
00654 /*
00655    ---------------------------------
00656    ---------- RAW options ----------
00657    ---------------------------------
00658 */
00659 /**
00660  * LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
00661  */
00662 #ifndef LWIP_RAW
00663 #define LWIP_RAW                        1
00664 #endif
00665 
00666 /**
00667  * LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
00668  */
00669 #ifndef RAW_TTL
00670 #define RAW_TTL                        (IP_DEFAULT_TTL)
00671 #endif
00672 
00673 /*
00674    ----------------------------------
00675    ---------- DHCP options ----------
00676    ----------------------------------
00677 */
00678 /**
00679  * LWIP_DHCP==1: Enable DHCP module.
00680  */
00681 #ifndef LWIP_DHCP
00682 #define LWIP_DHCP                       0
00683 #endif
00684 
00685 /**
00686  * DHCP_DOES_ARP_CHECK==1: Do an ARP check on the offered address.
00687  */
00688 #ifndef DHCP_DOES_ARP_CHECK
00689 #define DHCP_DOES_ARP_CHECK             ((LWIP_DHCP) && (LWIP_ARP))
00690 #endif
00691 
00692 /*
00693    ------------------------------------
00694    ---------- AUTOIP options ----------
00695    ------------------------------------
00696 */
00697 /**
00698  * LWIP_AUTOIP==1: Enable AUTOIP module.
00699  */
00700 #ifndef LWIP_AUTOIP
00701 #define LWIP_AUTOIP                     0
00702 #endif
00703 
00704 /**
00705  * LWIP_DHCP_AUTOIP_COOP==1: Allow DHCP and AUTOIP to be both enabled on
00706  * the same interface at the same time.
00707  */
00708 #ifndef LWIP_DHCP_AUTOIP_COOP
00709 #define LWIP_DHCP_AUTOIP_COOP           0
00710 #endif
00711 
00712 /**
00713  * LWIP_DHCP_AUTOIP_COOP_TRIES: Set to the number of DHCP DISCOVER probes
00714  * that should be sent before falling back on AUTOIP. This can be set
00715  * as low as 1 to get an AutoIP address very quickly, but you should
00716  * be prepared to handle a changing IP address when DHCP overrides
00717  * AutoIP.
00718  */
00719 #ifndef LWIP_DHCP_AUTOIP_COOP_TRIES
00720 #define LWIP_DHCP_AUTOIP_COOP_TRIES     9
00721 #endif
00722 
00723 /*
00724    ----------------------------------
00725    ---------- SNMP options ----------
00726    ----------------------------------
00727 */
00728 /**
00729  * LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP
00730  * transport.
00731  */
00732 #ifndef LWIP_SNMP
00733 #define LWIP_SNMP                       0
00734 #endif
00735 
00736 /**
00737  * SNMP_CONCURRENT_REQUESTS: Number of concurrent requests the module will
00738  * allow. At least one request buffer is required.
00739  * Does not have to be changed unless external MIBs answer request asynchronously
00740  */
00741 #ifndef SNMP_CONCURRENT_REQUESTS
00742 #define SNMP_CONCURRENT_REQUESTS        1
00743 #endif
00744 
00745 /**
00746  * SNMP_TRAP_DESTINATIONS: Number of trap destinations. At least one trap
00747  * destination is required
00748  */
00749 #ifndef SNMP_TRAP_DESTINATIONS
00750 #define SNMP_TRAP_DESTINATIONS          1
00751 #endif
00752 
00753 /**
00754  * SNMP_PRIVATE_MIB:
00755  * When using a private MIB, you have to create a file 'private_mib.h' that contains
00756  * a 'struct mib_array_node mib_private' which contains your MIB.
00757  */
00758 #ifndef SNMP_PRIVATE_MIB
00759 #define SNMP_PRIVATE_MIB                0
00760 #endif
00761 
00762 /**
00763  * Only allow SNMP write actions that are 'safe' (e.g. disabeling netifs is not
00764  * a safe action and disabled when SNMP_SAFE_REQUESTS = 1).
00765  * Unsafe requests are disabled by default!
00766  */
00767 #ifndef SNMP_SAFE_REQUESTS
00768 #define SNMP_SAFE_REQUESTS              1
00769 #endif
00770 
00771 /**
00772  * The maximum length of strings used. This affects the size of
00773  * MEMP_SNMP_VALUE elements.
00774  */
00775 #ifndef SNMP_MAX_OCTET_STRING_LEN
00776 #define SNMP_MAX_OCTET_STRING_LEN       127
00777 #endif
00778 
00779 /**
00780  * The maximum depth of the SNMP tree.
00781  * With private MIBs enabled, this depends on your MIB!
00782  * This affects the size of MEMP_SNMP_VALUE elements.
00783  */
00784 #ifndef SNMP_MAX_TREE_DEPTH
00785 #define SNMP_MAX_TREE_DEPTH             15
00786 #endif
00787 
00788 /**
00789  * The size of the MEMP_SNMP_VALUE elements, normally calculated from
00790  * SNMP_MAX_OCTET_STRING_LEN and SNMP_MAX_TREE_DEPTH.
00791  */
00792 #ifndef SNMP_MAX_VALUE_SIZE
00793 #define SNMP_MAX_VALUE_SIZE             LWIP_MAX((SNMP_MAX_OCTET_STRING_LEN)+1, sizeof(s32_t)*(SNMP_MAX_TREE_DEPTH))
00794 #endif
00795 
00796 /*
00797    ----------------------------------
00798    ---------- IGMP options ----------
00799    ----------------------------------
00800 */
00801 /**
00802  * LWIP_IGMP==1: Turn on IGMP module.
00803  */
00804 #ifndef LWIP_IGMP
00805 #define LWIP_IGMP                       0
00806 #endif
00807 
00808 /*
00809    ----------------------------------
00810    ---------- DNS options -----------
00811    ----------------------------------
00812 */
00813 /**
00814  * LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS
00815  * transport.
00816  */
00817 #ifndef LWIP_DNS
00818 #define LWIP_DNS                        0
00819 #endif
00820 
00821 /** DNS maximum number of entries to maintain locally. */
00822 #ifndef DNS_TABLE_SIZE
00823 #define DNS_TABLE_SIZE                  4
00824 #endif
00825 
00826 /** DNS maximum host name length supported in the name table. */
00827 #ifndef DNS_MAX_NAME_LENGTH
00828 #define DNS_MAX_NAME_LENGTH             256
00829 #endif
00830 
00831 /** The maximum of DNS servers */
00832 #ifndef DNS_MAX_SERVERS
00833 #define DNS_MAX_SERVERS                 2
00834 #endif
00835 
00836 /** DNS do a name checking between the query and the response. */
00837 #ifndef DNS_DOES_NAME_CHECK
00838 #define DNS_DOES_NAME_CHECK             1
00839 #endif
00840 
00841 /** DNS message max. size. Default value is RFC compliant. */
00842 #ifndef DNS_MSG_SIZE
00843 #define DNS_MSG_SIZE                    512
00844 #endif
00845 
00846 /** DNS_LOCAL_HOSTLIST: Implements a local host-to-address list. If enabled,
00847  *  you have to define
00848  *    #define DNS_LOCAL_HOSTLIST_INIT {{"host1", 0x123}, {"host2", 0x234}}
00849  *  (an array of structs name/address, where address is an u32_t in network
00850  *  byte order).
00851  *
00852  *  Instead, you can also use an external function:
00853  *  #define DNS_LOOKUP_LOCAL_EXTERN(x) extern u32_t my_lookup_function(const char *name)
00854  *  that returns the IP address or INADDR_NONE if not found.
00855  */
00856 #ifndef DNS_LOCAL_HOSTLIST
00857 #define DNS_LOCAL_HOSTLIST              0
00858 #endif /* DNS_LOCAL_HOSTLIST */
00859 
00860 /** If this is turned on, the local host-list can be dynamically changed
00861  *  at runtime. */
00862 #ifndef DNS_LOCAL_HOSTLIST_IS_DYNAMIC
00863 #define DNS_LOCAL_HOSTLIST_IS_DYNAMIC   0
00864 #endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
00865 
00866 /*
00867    ---------------------------------
00868    ---------- UDP options ----------
00869    ---------------------------------
00870 */
00871 /**
00872  * LWIP_UDP==1: Turn on UDP.
00873  */
00874 #ifndef LWIP_UDP
00875 #define LWIP_UDP                        1
00876 #endif
00877 
00878 /**
00879  * LWIP_UDPLITE==1: Turn on UDP-Lite. (Requires LWIP_UDP)
00880  */
00881 #ifndef LWIP_UDPLITE
00882 #define LWIP_UDPLITE                    0
00883 #endif
00884 
00885 /**
00886  * UDP_TTL: Default Time-To-Live value.
00887  */
00888 #ifndef UDP_TTL
00889 #define UDP_TTL                         (IP_DEFAULT_TTL)
00890 #endif
00891 
00892 /**
00893  * LWIP_NETBUF_RECVINFO==1: append destination addr and port to every netbuf.
00894  */
00895 #ifndef LWIP_NETBUF_RECVINFO
00896 #define LWIP_NETBUF_RECVINFO            0
00897 #endif
00898 
00899 /*
00900    ---------------------------------
00901    ---------- TCP options ----------
00902    ---------------------------------
00903 */
00904 /**
00905  * LWIP_TCP==1: Turn on TCP.
00906  */
00907 #ifndef LWIP_TCP
00908 #define LWIP_TCP                        1
00909 #endif
00910 
00911 /**
00912  * TCP_TTL: Default Time-To-Live value.
00913  */
00914 #ifndef TCP_TTL
00915 #define TCP_TTL                         (IP_DEFAULT_TTL)
00916 #endif
00917 
00918 /**
00919  * TCP_WND: The size of a TCP window.  This must be at least
00920  * (2 * TCP_MSS) for things to work well
00921  */
00922 #ifndef TCP_WND
00923 #define TCP_WND                         (4 * TCP_MSS)
00924 #endif
00925 
00926 /**
00927  * TCP_MAXRTX: Maximum number of retransmissions of data segments.
00928  */
00929 #ifndef TCP_MAXRTX
00930 #define TCP_MAXRTX                      12
00931 #endif
00932 
00933 /**
00934  * TCP_SYNMAXRTX: Maximum number of retransmissions of SYN segments.
00935  */
00936 #ifndef TCP_SYNMAXRTX
00937 #define TCP_SYNMAXRTX                   6
00938 #endif
00939 
00940 /**
00941  * TCP_QUEUE_OOSEQ==1: TCP will queue segments that arrive out of order.
00942  * Define to 0 if your device is low on memory.
00943  */
00944 #ifndef TCP_QUEUE_OOSEQ
00945 #define TCP_QUEUE_OOSEQ                 (LWIP_TCP)
00946 #endif
00947 
00948 /**
00949  * TCP_MSS: TCP Maximum segment size. (default is 536, a conservative default,
00950  * you might want to increase this.)
00951  * For the receive side, this MSS is advertised to the remote side
00952  * when opening a connection. For the transmit size, this MSS sets
00953  * an upper limit on the MSS advertised by the remote host.
00954  */
00955 #ifndef TCP_MSS
00956 #define TCP_MSS                         536
00957 #endif
00958 
00959 /**
00960  * TCP_CALCULATE_EFF_SEND_MSS: "The maximum size of a segment that TCP really
00961  * sends, the 'effective send MSS,' MUST be the smaller of the send MSS (which
00962  * reflects the available reassembly buffer size at the remote host) and the
00963  * largest size permitted by the IP layer" (RFC 1122)
00964  * Setting this to 1 enables code that checks TCP_MSS against the MTU of the
00965  * netif used for a connection and limits the MSS if it would be too big otherwise.
00966  */
00967 #ifndef TCP_CALCULATE_EFF_SEND_MSS
00968 #define TCP_CALCULATE_EFF_SEND_MSS      1
00969 #endif
00970 
00971 
00972 /**
00973  * TCP_SND_BUF: TCP sender buffer space (bytes).
00974  * To achieve good performance, this should be at least 2 * TCP_MSS.
00975  */
00976 #ifndef TCP_SND_BUF
00977 #define TCP_SND_BUF                     (2 * TCP_MSS)
00978 #endif
00979 
00980 /**
00981  * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least
00982  * as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work.
00983  */
00984 #ifndef TCP_SND_QUEUELEN
00985 #define TCP_SND_QUEUELEN                ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))
00986 #endif
00987 
00988 /**
00989  * TCP_SNDLOWAT: TCP writable space (bytes). This must be less than
00990  * TCP_SND_BUF. It is the amount of space which must be available in the
00991  * TCP snd_buf for select to return writable (combined with TCP_SNDQUEUELOWAT).
00992  */
00993 #ifndef TCP_SNDLOWAT
00994 #define TCP_SNDLOWAT                    LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1)
00995 #endif
00996 
00997 /**
00998  * TCP_SNDQUEUELOWAT: TCP writable bufs (pbuf count). This must be less
00999  * than TCP_SND_QUEUELEN. If the number of pbufs queued on a pcb drops below
01000  * this number, select returns writable (combined with TCP_SNDLOWAT).
01001  */
01002 #ifndef TCP_SNDQUEUELOWAT
01003 #define TCP_SNDQUEUELOWAT               LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5)
01004 #endif
01005 
01006 /**
01007  * TCP_OOSEQ_MAX_BYTES: The maximum number of bytes queued on ooseq per pcb.
01008  * Default is 0 (no limit). Only valid for TCP_QUEUE_OOSEQ==0.
01009  */
01010 #ifndef TCP_OOSEQ_MAX_BYTES
01011 #define TCP_OOSEQ_MAX_BYTES             0
01012 #endif
01013 
01014 /**
01015  * TCP_OOSEQ_MAX_PBUFS: The maximum number of pbufs queued on ooseq per pcb.
01016  * Default is 0 (no limit). Only valid for TCP_QUEUE_OOSEQ==0.
01017  */
01018 #ifndef TCP_OOSEQ_MAX_PBUFS
01019 #define TCP_OOSEQ_MAX_PBUFS             0
01020 #endif
01021 
01022 /**
01023  * TCP_LISTEN_BACKLOG: Enable the backlog option for tcp listen pcb.
01024  */
01025 #ifndef TCP_LISTEN_BACKLOG
01026 #define TCP_LISTEN_BACKLOG              0
01027 #endif
01028 
01029 /**
01030  * The maximum allowed backlog for TCP listen netconns.
01031  * This backlog is used unless another is explicitly specified.
01032  * 0xff is the maximum (u8_t).
01033  */
01034 #ifndef TCP_DEFAULT_LISTEN_BACKLOG
01035 #define TCP_DEFAULT_LISTEN_BACKLOG      0xff
01036 #endif
01037 
01038 /**
01039  * TCP_OVERSIZE: The maximum number of bytes that tcp_write may
01040  * allocate ahead of time in an attempt to create shorter pbuf chains
01041  * for transmission. The meaningful range is 0 to TCP_MSS. Some
01042  * suggested values are:
01043  *
01044  * 0:         Disable oversized allocation. Each tcp_write() allocates a new
01045               pbuf (old behaviour).
01046  * 1:         Allocate size-aligned pbufs with minimal excess. Use this if your
01047  *            scatter-gather DMA requires aligned fragments.
01048  * 128:       Limit the pbuf/memory overhead to 20%.
01049  * TCP_MSS:   Try to create unfragmented TCP packets.
01050  * TCP_MSS/4: Try to create 4 fragments or less per TCP packet.
01051  */
01052 #ifndef TCP_OVERSIZE
01053 #define TCP_OVERSIZE                    TCP_MSS
01054 #endif
01055 
01056 /**
01057  * LWIP_TCP_TIMESTAMPS==1: support the TCP timestamp option.
01058  */
01059 #ifndef LWIP_TCP_TIMESTAMPS
01060 #define LWIP_TCP_TIMESTAMPS             0
01061 #endif
01062 
01063 /**
01064  * TCP_WND_UPDATE_THRESHOLD: difference in window to trigger an
01065  * explicit window update
01066  */
01067 #ifndef TCP_WND_UPDATE_THRESHOLD
01068 #define TCP_WND_UPDATE_THRESHOLD   (TCP_WND / 4)
01069 #endif
01070 
01071 /**
01072  * LWIP_EVENT_API and LWIP_CALLBACK_API: Only one of these should be set to 1.
01073  *     LWIP_EVENT_API==1: The user defines lwip_tcp_event() to receive all
01074  *         events (accept, sent, etc) that happen in the system.
01075  *     LWIP_CALLBACK_API==1: The PCB callback function is called directly
01076  *         for the event. This is the default.
01077  */
01078 #if !defined(LWIP_EVENT_API) && !defined(LWIP_CALLBACK_API)
01079 #define LWIP_EVENT_API                  0
01080 #define LWIP_CALLBACK_API               1
01081 #endif
01082 
01083 
01084 /*
01085    ----------------------------------
01086    ---------- Pbuf options ----------
01087    ----------------------------------
01088 */
01089 /**
01090  * PBUF_LINK_HLEN: the number of bytes that should be allocated for a
01091  * link level header. The default is 14, the standard value for
01092  * Ethernet.
01093  */
01094 #ifndef PBUF_LINK_HLEN
01095 #define PBUF_LINK_HLEN                  (14 + ETH_PAD_SIZE)
01096 #endif
01097 
01098 /**
01099  * PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is
01100  * designed to accomodate single full size TCP frame in one pbuf, including
01101  * TCP_MSS, IP header, and link header.
01102  */
01103 #ifndef PBUF_POOL_BUFSIZE
01104 #define PBUF_POOL_BUFSIZE               LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN)
01105 #endif
01106 
01107 /*
01108    ------------------------------------------------
01109    ---------- Network Interfaces options ----------
01110    ------------------------------------------------
01111 */
01112 /**
01113  * LWIP_NETIF_HOSTNAME==1: use DHCP_OPTION_HOSTNAME with netif's hostname
01114  * field.
01115  */
01116 #ifndef LWIP_NETIF_HOSTNAME
01117 #define LWIP_NETIF_HOSTNAME             0
01118 #endif
01119 
01120 /**
01121  * LWIP_NETIF_API==1: Support netif api (in netifapi.c)
01122  */
01123 #ifndef LWIP_NETIF_API
01124 #define LWIP_NETIF_API                  0
01125 #endif
01126 
01127 /**
01128  * LWIP_NETIF_STATUS_CALLBACK==1: Support a callback function whenever an interface
01129  * changes its up/down status (i.e., due to DHCP IP acquistion)
01130  */
01131 #ifndef LWIP_NETIF_STATUS_CALLBACK
01132 #define LWIP_NETIF_STATUS_CALLBACK      0
01133 #endif
01134 
01135 /**
01136  * LWIP_NETIF_LINK_CALLBACK==1: Support a callback function from an interface
01137  * whenever the link changes (i.e., link down)
01138  */
01139 #ifndef LWIP_NETIF_LINK_CALLBACK
01140 #define LWIP_NETIF_LINK_CALLBACK        0
01141 #endif
01142 
01143 /**
01144  * LWIP_NETIF_REMOVE_CALLBACK==1: Support a callback function that is called
01145  * when a netif has been removed
01146  */
01147 #ifndef LWIP_NETIF_REMOVE_CALLBACK
01148 #define LWIP_NETIF_REMOVE_CALLBACK      0
01149 #endif
01150 
01151 /**
01152  * LWIP_NETIF_HWADDRHINT==1: Cache link-layer-address hints (e.g. table
01153  * indices) in struct netif. TCP and UDP can make use of this to prevent
01154  * scanning the ARP table for every sent packet. While this is faster for big
01155  * ARP tables or many concurrent connections, it might be counterproductive
01156  * if you have a tiny ARP table or if there never are concurrent connections.
01157  */
01158 #ifndef LWIP_NETIF_HWADDRHINT
01159 #define LWIP_NETIF_HWADDRHINT           0
01160 #endif
01161 
01162 /**
01163  * LWIP_NETIF_LOOPBACK==1: Support sending packets with a destination IP
01164  * address equal to the netif IP address, looping them back up the stack.
01165  */
01166 #ifndef LWIP_NETIF_LOOPBACK
01167 #define LWIP_NETIF_LOOPBACK             0
01168 #endif
01169 
01170 /**
01171  * LWIP_LOOPBACK_MAX_PBUFS: Maximum number of pbufs on queue for loopback
01172  * sending for each netif (0 = disabled)
01173  */
01174 #ifndef LWIP_LOOPBACK_MAX_PBUFS
01175 #define LWIP_LOOPBACK_MAX_PBUFS         0
01176 #endif
01177 
01178 /**
01179  * LWIP_NETIF_LOOPBACK_MULTITHREADING: Indicates whether threading is enabled in
01180  * the system, as netifs must change how they behave depending on this setting
01181  * for the LWIP_NETIF_LOOPBACK option to work.
01182  * Setting this is needed to avoid reentering non-reentrant functions like
01183  * tcp_input().
01184  *    LWIP_NETIF_LOOPBACK_MULTITHREADING==1: Indicates that the user is using a
01185  *       multithreaded environment like tcpip.c. In this case, netif->input()
01186  *       is called directly.
01187  *    LWIP_NETIF_LOOPBACK_MULTITHREADING==0: Indicates a polling (or NO_SYS) setup.
01188  *       The packets are put on a list and netif_poll() must be called in
01189  *       the main application loop.
01190  */
01191 #ifndef LWIP_NETIF_LOOPBACK_MULTITHREADING
01192 #define LWIP_NETIF_LOOPBACK_MULTITHREADING    (!NO_SYS)
01193 #endif
01194 
01195 /**
01196  * LWIP_NETIF_TX_SINGLE_PBUF: if this is set to 1, lwIP tries to put all data
01197  * to be sent into one single pbuf. This is for compatibility with DMA-enabled
01198  * MACs that do not support scatter-gather.
01199  * Beware that this might involve CPU-memcpy before transmitting that would not
01200  * be needed without this flag! Use this only if you need to!
01201  *
01202  * @todo: TCP and IP-frag do not work with this, yet:
01203  */
01204 #ifndef LWIP_NETIF_TX_SINGLE_PBUF
01205 #define LWIP_NETIF_TX_SINGLE_PBUF             0
01206 #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
01207 
01208 /*
01209    ------------------------------------
01210    ---------- LOOPIF options ----------
01211    ------------------------------------
01212 */
01213 /**
01214  * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c
01215  */
01216 #ifndef LWIP_HAVE_LOOPIF
01217 #define LWIP_HAVE_LOOPIF                0
01218 #endif
01219 
01220 /*
01221    ------------------------------------
01222    ---------- SLIPIF options ----------
01223    ------------------------------------
01224 */
01225 /**
01226  * LWIP_HAVE_SLIPIF==1: Support slip interface and slipif.c
01227  */
01228 #ifndef LWIP_HAVE_SLIPIF
01229 #define LWIP_HAVE_SLIPIF                0
01230 #endif
01231 
01232 /*
01233    ------------------------------------
01234    ---------- Thread options ----------
01235    ------------------------------------
01236 */
01237 /**
01238  * TCPIP_THREAD_NAME: The name assigned to the main tcpip thread.
01239  */
01240 #ifndef TCPIP_THREAD_NAME
01241 #define TCPIP_THREAD_NAME              "tcpip_thread"
01242 #endif
01243 
01244 /**
01245  * TCPIP_THREAD_STACKSIZE: The stack size used by the main tcpip thread.
01246  * The stack size value itself is platform-dependent, but is passed to
01247  * sys_thread_new() when the thread is created.
01248  */
01249 #ifndef TCPIP_THREAD_STACKSIZE
01250 #define TCPIP_THREAD_STACKSIZE          0
01251 #endif
01252 
01253 /**
01254  * TCPIP_THREAD_PRIO: The priority assigned to the main tcpip thread.
01255  * The priority value itself is platform-dependent, but is passed to
01256  * sys_thread_new() when the thread is created.
01257  */
01258 #ifndef TCPIP_THREAD_PRIO
01259 #define TCPIP_THREAD_PRIO               1
01260 #endif
01261 
01262 /**
01263  * TCPIP_MBOX_SIZE: The mailbox size for the tcpip thread messages
01264  * The queue size value itself is platform-dependent, but is passed to
01265  * sys_mbox_new() when tcpip_init is called.
01266  */
01267 #ifndef TCPIP_MBOX_SIZE
01268 #define TCPIP_MBOX_SIZE                 0
01269 #endif
01270 
01271 /**
01272  * SLIPIF_THREAD_NAME: The name assigned to the slipif_loop thread.
01273  */
01274 #ifndef SLIPIF_THREAD_NAME
01275 #define SLIPIF_THREAD_NAME             "slipif_loop"
01276 #endif
01277 
01278 /**
01279  * SLIP_THREAD_STACKSIZE: The stack size used by the slipif_loop thread.
01280  * The stack size value itself is platform-dependent, but is passed to
01281  * sys_thread_new() when the thread is created.
01282  */
01283 #ifndef SLIPIF_THREAD_STACKSIZE
01284 #define SLIPIF_THREAD_STACKSIZE         0
01285 #endif
01286 
01287 /**
01288  * SLIPIF_THREAD_PRIO: The priority assigned to the slipif_loop thread.
01289  * The priority value itself is platform-dependent, but is passed to
01290  * sys_thread_new() when the thread is created.
01291  */
01292 #ifndef SLIPIF_THREAD_PRIO
01293 #define SLIPIF_THREAD_PRIO              1
01294 #endif
01295 
01296 /**
01297  * PPP_THREAD_NAME: The name assigned to the pppInputThread.
01298  */
01299 #ifndef PPP_THREAD_NAME
01300 #define PPP_THREAD_NAME                "pppInputThread"
01301 #endif
01302 
01303 /**
01304  * PPP_THREAD_STACKSIZE: The stack size used by the pppInputThread.
01305  * The stack size value itself is platform-dependent, but is passed to
01306  * sys_thread_new() when the thread is created.
01307  */
01308 #ifndef PPP_THREAD_STACKSIZE
01309 #define PPP_THREAD_STACKSIZE            0
01310 #endif
01311 
01312 /**
01313  * PPP_THREAD_PRIO: The priority assigned to the pppInputThread.
01314  * The priority value itself is platform-dependent, but is passed to
01315  * sys_thread_new() when the thread is created.
01316  */
01317 #ifndef PPP_THREAD_PRIO
01318 #define PPP_THREAD_PRIO                 1
01319 #endif
01320 
01321 /**
01322  * DEFAULT_THREAD_NAME: The name assigned to any other lwIP thread.
01323  */
01324 #ifndef DEFAULT_THREAD_NAME
01325 #define DEFAULT_THREAD_NAME            "lwIP"
01326 #endif
01327 
01328 /**
01329  * DEFAULT_THREAD_STACKSIZE: The stack size used by any other lwIP thread.
01330  * The stack size value itself is platform-dependent, but is passed to
01331  * sys_thread_new() when the thread is created.
01332  */
01333 #ifndef DEFAULT_THREAD_STACKSIZE
01334 #define DEFAULT_THREAD_STACKSIZE        0
01335 #endif
01336 
01337 /**
01338  * DEFAULT_THREAD_PRIO: The priority assigned to any other lwIP thread.
01339  * The priority value itself is platform-dependent, but is passed to
01340  * sys_thread_new() when the thread is created.
01341  */
01342 #ifndef DEFAULT_THREAD_PRIO
01343 #define DEFAULT_THREAD_PRIO             1
01344 #endif
01345 
01346 /**
01347  * DEFAULT_RAW_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
01348  * NETCONN_RAW. The queue size value itself is platform-dependent, but is passed
01349  * to sys_mbox_new() when the recvmbox is created.
01350  */
01351 #ifndef DEFAULT_RAW_RECVMBOX_SIZE
01352 #define DEFAULT_RAW_RECVMBOX_SIZE       0
01353 #endif
01354 
01355 /**
01356  * DEFAULT_UDP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
01357  * NETCONN_UDP. The queue size value itself is platform-dependent, but is passed
01358  * to sys_mbox_new() when the recvmbox is created.
01359  */
01360 #ifndef DEFAULT_UDP_RECVMBOX_SIZE
01361 #define DEFAULT_UDP_RECVMBOX_SIZE       0
01362 #endif
01363 
01364 /**
01365  * DEFAULT_TCP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
01366  * NETCONN_TCP. The queue size value itself is platform-dependent, but is passed
01367  * to sys_mbox_new() when the recvmbox is created.
01368  */
01369 #ifndef DEFAULT_TCP_RECVMBOX_SIZE
01370 #define DEFAULT_TCP_RECVMBOX_SIZE       0
01371 #endif
01372 
01373 /**
01374  * DEFAULT_ACCEPTMBOX_SIZE: The mailbox size for the incoming connections.
01375  * The queue size value itself is platform-dependent, but is passed to
01376  * sys_mbox_new() when the acceptmbox is created.
01377  */
01378 #ifndef DEFAULT_ACCEPTMBOX_SIZE
01379 #define DEFAULT_ACCEPTMBOX_SIZE         0
01380 #endif
01381 
01382 /*
01383    ----------------------------------------------
01384    ---------- Sequential layer options ----------
01385    ----------------------------------------------
01386 */
01387 /**
01388  * LWIP_TCPIP_CORE_LOCKING: (EXPERIMENTAL!)
01389  * Don't use it if you're not an active lwIP project member
01390  */
01391 #ifndef LWIP_TCPIP_CORE_LOCKING
01392 #define LWIP_TCPIP_CORE_LOCKING         0
01393 #endif
01394 
01395 /**
01396  * LWIP_TCPIP_CORE_LOCKING_INPUT: (EXPERIMENTAL!)
01397  * Don't use it if you're not an active lwIP project member
01398  */
01399 #ifndef LWIP_TCPIP_CORE_LOCKING_INPUT
01400 #define LWIP_TCPIP_CORE_LOCKING_INPUT   0
01401 #endif
01402 
01403 /**
01404  * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)
01405  */
01406 #ifndef LWIP_NETCONN
01407 #define LWIP_NETCONN                    1
01408 #endif
01409 
01410 /** LWIP_TCPIP_TIMEOUT==1: Enable tcpip_timeout/tcpip_untimeout tod create
01411  * timers running in tcpip_thread from another thread.
01412  */
01413 #ifndef LWIP_TCPIP_TIMEOUT
01414 #define LWIP_TCPIP_TIMEOUT              1
01415 #endif
01416 
01417 /*
01418    ------------------------------------
01419    ---------- Socket options ----------
01420    ------------------------------------
01421 */
01422 /**
01423  * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)
01424  */
01425 #ifndef LWIP_SOCKET
01426 #define LWIP_SOCKET                     1
01427 #endif
01428 
01429 /**
01430  * LWIP_COMPAT_SOCKETS==1: Enable BSD-style sockets functions names.
01431  * (only used if you use sockets.c)
01432  */
01433 #ifndef LWIP_COMPAT_SOCKETS
01434 #define LWIP_COMPAT_SOCKETS             0
01435 #endif
01436 
01437 /**
01438  * LWIP_POSIX_SOCKETS_IO_NAMES==1: Enable POSIX-style sockets functions names.
01439  * Disable this option if you use a POSIX operating system that uses the same
01440  * names (read, write & close). (only used if you use sockets.c)
01441  */
01442 #ifndef LWIP_POSIX_SOCKETS_IO_NAMES
01443 #define LWIP_POSIX_SOCKETS_IO_NAMES     0
01444 #endif
01445 
01446 /**
01447  * LWIP_TCP_KEEPALIVE==1: Enable TCP_KEEPIDLE, TCP_KEEPINTVL and TCP_KEEPCNT
01448  * options processing. Note that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set
01449  * in seconds. (does not require sockets.c, and will affect tcp.c)
01450  */
01451 #ifndef LWIP_TCP_KEEPALIVE
01452 #define LWIP_TCP_KEEPALIVE              0
01453 #endif
01454 
01455 /**
01456  * LWIP_SO_SNDTIMEO==1: Enable send timeout for sockets/netconns and
01457  * SO_SNDTIMEO processing.
01458  */
01459 #ifndef LWIP_SO_SNDTIMEO
01460 #define LWIP_SO_SNDTIMEO                0
01461 #endif
01462 
01463 /**
01464  * LWIP_SO_RCVTIMEO==1: Enable receive timeout for sockets/netconns and
01465  * SO_RCVTIMEO processing.
01466  */
01467 #ifndef LWIP_SO_RCVTIMEO
01468 #define LWIP_SO_RCVTIMEO                0
01469 #endif
01470 
01471 /**
01472  * LWIP_SO_RCVBUF==1: Enable SO_RCVBUF processing.
01473  */
01474 #ifndef LWIP_SO_RCVBUF
01475 #define LWIP_SO_RCVBUF                  0
01476 #endif
01477 
01478 /**
01479  * If LWIP_SO_RCVBUF is used, this is the default value for recv_bufsize.
01480  */
01481 #ifndef RECV_BUFSIZE_DEFAULT
01482 #define RECV_BUFSIZE_DEFAULT            INT_MAX
01483 #endif
01484 
01485 /**
01486  * SO_REUSE==1: Enable SO_REUSEADDR option.
01487  */
01488 #ifndef SO_REUSE
01489 #define SO_REUSE                        0
01490 #endif
01491 
01492 /**
01493  * SO_REUSE_RXTOALL==1: Pass a copy of incoming broadcast/multicast packets
01494  * to all local matches if SO_REUSEADDR is turned on.
01495  * WARNING: Adds a memcpy for every packet if passing to more than one pcb!
01496  */
01497 #ifndef SO_REUSE_RXTOALL
01498 #define SO_REUSE_RXTOALL                0
01499 #endif
01500 
01501 /*
01502    ----------------------------------------
01503    ---------- Statistics options ----------
01504    ----------------------------------------
01505 */
01506 /**
01507  * LWIP_STATS==1: Enable statistics collection in lwip_stats.
01508  */
01509 #ifndef LWIP_STATS
01510 #define LWIP_STATS                      1
01511 #endif
01512 
01513 #if LWIP_STATS
01514 
01515 /**
01516  * LWIP_STATS_DISPLAY==1: Compile in the statistics output functions.
01517  */
01518 #ifndef LWIP_STATS_DISPLAY
01519 #define LWIP_STATS_DISPLAY              0
01520 #endif
01521 
01522 /**
01523  * LINK_STATS==1: Enable link stats.
01524  */
01525 #ifndef LINK_STATS
01526 #define LINK_STATS                      1
01527 #endif
01528 
01529 /**
01530  * ETHARP_STATS==1: Enable etharp stats.
01531  */
01532 #ifndef ETHARP_STATS
01533 #define ETHARP_STATS                    (LWIP_ARP)
01534 #endif
01535 
01536 /**
01537  * IP_STATS==1: Enable IP stats.
01538  */
01539 #ifndef IP_STATS
01540 #define IP_STATS                        1
01541 #endif
01542 
01543 /**
01544  * IPFRAG_STATS==1: Enable IP fragmentation stats. Default is
01545  * on if using either frag or reass.
01546  */
01547 #ifndef IPFRAG_STATS
01548 #define IPFRAG_STATS                    (IP_REASSEMBLY || IP_FRAG)
01549 #endif
01550 
01551 /**
01552  * ICMP_STATS==1: Enable ICMP stats.
01553  */
01554 #ifndef ICMP_STATS
01555 #define ICMP_STATS                      1
01556 #endif
01557 
01558 /**
01559  * IGMP_STATS==1: Enable IGMP stats.
01560  */
01561 #ifndef IGMP_STATS
01562 #define IGMP_STATS                      (LWIP_IGMP)
01563 #endif
01564 
01565 /**
01566  * UDP_STATS==1: Enable UDP stats. Default is on if
01567  * UDP enabled, otherwise off.
01568  */
01569 #ifndef UDP_STATS
01570 #define UDP_STATS                       (LWIP_UDP)
01571 #endif
01572 
01573 /**
01574  * TCP_STATS==1: Enable TCP stats. Default is on if TCP
01575  * enabled, otherwise off.
01576  */
01577 #ifndef TCP_STATS
01578 #define TCP_STATS                       (LWIP_TCP)
01579 #endif
01580 
01581 /**
01582  * MEM_STATS==1: Enable mem.c stats.
01583  */
01584 #ifndef MEM_STATS
01585 #define MEM_STATS                       ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0))
01586 #endif
01587 
01588 /**
01589  * MEMP_STATS==1: Enable memp.c pool stats.
01590  */
01591 #ifndef MEMP_STATS
01592 #define MEMP_STATS                      (MEMP_MEM_MALLOC == 0)
01593 #endif
01594 
01595 /**
01596  * SYS_STATS==1: Enable system stats (sem and mbox counts, etc).
01597  */
01598 #ifndef SYS_STATS
01599 #define SYS_STATS                       (NO_SYS == 0)
01600 #endif
01601 
01602 #else
01603 
01604 #define LINK_STATS                      0
01605 #define IP_STATS                        0
01606 #define IPFRAG_STATS                    0
01607 #define ICMP_STATS                      0
01608 #define IGMP_STATS                      0
01609 #define UDP_STATS                       0
01610 #define TCP_STATS                       0
01611 #define MEM_STATS                       0
01612 #define MEMP_STATS                      0
01613 #define SYS_STATS                       0
01614 #define LWIP_STATS_DISPLAY              0
01615 
01616 #endif /* LWIP_STATS */
01617 
01618 /*
01619    ---------------------------------
01620    ---------- PPP options ----------
01621    ---------------------------------
01622 */
01623 /**
01624  * PPP_SUPPORT==1: Enable PPP.
01625  */
01626 #ifndef PPP_SUPPORT
01627 #define PPP_SUPPORT                     0
01628 #endif
01629 
01630 /**
01631  * PPPOE_SUPPORT==1: Enable PPP Over Ethernet
01632  */
01633 #ifndef PPPOE_SUPPORT
01634 #define PPPOE_SUPPORT                   0
01635 #endif
01636 
01637 /**
01638  * PPPOS_SUPPORT==1: Enable PPP Over Serial
01639  */
01640 #ifndef PPPOS_SUPPORT
01641 #define PPPOS_SUPPORT                   PPP_SUPPORT
01642 #endif
01643 
01644 #if PPP_SUPPORT
01645 
01646 /**
01647  * NUM_PPP: Max PPP sessions.
01648  */
01649 #ifndef NUM_PPP
01650 #define NUM_PPP                         1
01651 #endif
01652 
01653 /**
01654  * PAP_SUPPORT==1: Support PAP.
01655  */
01656 #ifndef PAP_SUPPORT
01657 #define PAP_SUPPORT                     0
01658 #endif
01659 
01660 /**
01661  * CHAP_SUPPORT==1: Support CHAP.
01662  */
01663 #ifndef CHAP_SUPPORT
01664 #define CHAP_SUPPORT                    0
01665 #endif
01666 
01667 /**
01668  * MSCHAP_SUPPORT==1: Support MSCHAP. CURRENTLY NOT SUPPORTED! DO NOT SET!
01669  */
01670 #ifndef MSCHAP_SUPPORT
01671 #define MSCHAP_SUPPORT                  0
01672 #endif
01673 
01674 /**
01675  * CBCP_SUPPORT==1: Support CBCP. CURRENTLY NOT SUPPORTED! DO NOT SET!
01676  */
01677 #ifndef CBCP_SUPPORT
01678 #define CBCP_SUPPORT                    0
01679 #endif
01680 
01681 /**
01682  * CCP_SUPPORT==1: Support CCP. CURRENTLY NOT SUPPORTED! DO NOT SET!
01683  */
01684 #ifndef CCP_SUPPORT
01685 #define CCP_SUPPORT                     0
01686 #endif
01687 
01688 /**
01689  * VJ_SUPPORT==1: Support VJ header compression.
01690  */
01691 #ifndef VJ_SUPPORT
01692 #define VJ_SUPPORT                      0
01693 #endif
01694 
01695 /**
01696  * MD5_SUPPORT==1: Support MD5 (see also CHAP).
01697  */
01698 #ifndef MD5_SUPPORT
01699 #define MD5_SUPPORT                     0
01700 #endif
01701 
01702 /*
01703  * Timeouts
01704  */
01705 #ifndef FSM_DEFTIMEOUT
01706 #define FSM_DEFTIMEOUT                  6       /* Timeout time in seconds */
01707 #endif
01708 
01709 #ifndef FSM_DEFMAXTERMREQS
01710 #define FSM_DEFMAXTERMREQS              2       /* Maximum Terminate-Request transmissions */
01711 #endif
01712 
01713 #ifndef FSM_DEFMAXCONFREQS
01714 #define FSM_DEFMAXCONFREQS              10      /* Maximum Configure-Request transmissions */
01715 #endif
01716 
01717 #ifndef FSM_DEFMAXNAKLOOPS
01718 #define FSM_DEFMAXNAKLOOPS              5       /* Maximum number of nak loops */
01719 #endif
01720 
01721 #ifndef UPAP_DEFTIMEOUT
01722 #define UPAP_DEFTIMEOUT                 6       /* Timeout (seconds) for retransmitting req */
01723 #endif
01724 
01725 #ifndef UPAP_DEFREQTIME
01726 #define UPAP_DEFREQTIME                 30      /* Time to wait for auth-req from peer */
01727 #endif
01728 
01729 #ifndef CHAP_DEFTIMEOUT
01730 #define CHAP_DEFTIMEOUT                 6       /* Timeout time in seconds */
01731 #endif
01732 
01733 #ifndef CHAP_DEFTRANSMITS
01734 #define CHAP_DEFTRANSMITS               10      /* max # times to send challenge */
01735 #endif
01736 
01737 /* Interval in seconds between keepalive echo requests, 0 to disable. */
01738 #ifndef LCP_ECHOINTERVAL
01739 #define LCP_ECHOINTERVAL                0
01740 #endif
01741 
01742 /* Number of unanswered echo requests before failure. */
01743 #ifndef LCP_MAXECHOFAILS
01744 #define LCP_MAXECHOFAILS                3
01745 #endif
01746 
01747 /* Max Xmit idle time (in jiffies) before resend flag char. */
01748 #ifndef PPP_MAXIDLEFLAG
01749 #define PPP_MAXIDLEFLAG                 100
01750 #endif
01751 
01752 /*
01753  * Packet sizes
01754  *
01755  * Note - lcp shouldn't be allowed to negotiate stuff outside these
01756  *    limits.  See lcp.h in the pppd directory.
01757  * (XXX - these constants should simply be shared by lcp.c instead
01758  *    of living in lcp.h)
01759  */
01760 #define PPP_MTU                         1500     /* Default MTU (size of Info field) */
01761 #ifndef PPP_MAXMTU
01762 /* #define PPP_MAXMTU  65535 - (PPP_HDRLEN + PPP_FCSLEN) */
01763 #define PPP_MAXMTU                      1500 /* Largest MTU we allow */
01764 #endif
01765 #define PPP_MINMTU                      64
01766 #define PPP_MRU                         1500     /* default MRU = max length of info field */
01767 #define PPP_MAXMRU                      1500     /* Largest MRU we allow */
01768 #ifndef PPP_DEFMRU
01769 #define PPP_DEFMRU                      296             /* Try for this */
01770 #endif
01771 #define PPP_MINMRU                      128             /* No MRUs below this */
01772 
01773 #ifndef MAXNAMELEN
01774 #define MAXNAMELEN                      256     /* max length of hostname or name for auth */
01775 #endif
01776 #ifndef MAXSECRETLEN
01777 #define MAXSECRETLEN                    256     /* max length of password or secret */
01778 #endif
01779 
01780 #endif /* PPP_SUPPORT */
01781 
01782 /*
01783    --------------------------------------
01784    ---------- Checksum options ----------
01785    --------------------------------------
01786 */
01787 /**
01788  * CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.
01789  */
01790 #ifndef CHECKSUM_GEN_IP
01791 #define CHECKSUM_GEN_IP                 1
01792 #endif
01793 
01794 /**
01795  * CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.
01796  */
01797 #ifndef CHECKSUM_GEN_UDP
01798 #define CHECKSUM_GEN_UDP                1
01799 #endif
01800 
01801 /**
01802  * CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.
01803  */
01804 #ifndef CHECKSUM_GEN_TCP
01805 #define CHECKSUM_GEN_TCP                1
01806 #endif
01807 
01808 /**
01809  * CHECKSUM_GEN_ICMP==1: Generate checksums in software for outgoing ICMP packets.
01810  */
01811 #ifndef CHECKSUM_GEN_ICMP
01812 #define CHECKSUM_GEN_ICMP               1
01813 #endif
01814 
01815 /**
01816  * CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.
01817  */
01818 #ifndef CHECKSUM_CHECK_IP
01819 #define CHECKSUM_CHECK_IP               1
01820 #endif
01821 
01822 /**
01823  * CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.
01824  */
01825 #ifndef CHECKSUM_CHECK_UDP
01826 #define CHECKSUM_CHECK_UDP              1
01827 #endif
01828 
01829 /**
01830  * CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.
01831  */
01832 #ifndef CHECKSUM_CHECK_TCP
01833 #define CHECKSUM_CHECK_TCP              1
01834 #endif
01835 
01836 /**
01837  * LWIP_CHECKSUM_ON_COPY==1: Calculate checksum when copying data from
01838  * application buffers to pbufs.
01839  */
01840 #ifndef LWIP_CHECKSUM_ON_COPY
01841 #define LWIP_CHECKSUM_ON_COPY           0
01842 #endif
01843 
01844 /*
01845    ---------------------------------------
01846    ---------- Hook options ---------------
01847    ---------------------------------------
01848 */
01849 
01850 /* Hooks are undefined by default, define them to a function if you need them. */
01851 
01852 /**
01853  * LWIP_HOOK_IP4_INPUT(pbuf, input_netif):
01854  * - called from ip_input() (IPv4)
01855  * - pbuf: received struct pbuf passed to ip_input()
01856  * - input_netif: struct netif on which the packet has been received
01857  * Return values:
01858  * - 0: Hook has not consumed the packet, packet is processed as normal
01859  * - != 0: Hook has consumed the packet.
01860  * If the hook consumed the packet, 'pbuf' is in the responsibility of the hook
01861  * (i.e. free it when done).
01862  */
01863 
01864 /**
01865  * LWIP_HOOK_IP4_ROUTE(dest):
01866  * - called from ip_route() (IPv4)
01867  * - dest: destination IPv4 address
01868  * Returns the destination netif or NULL if no destination netif is found. In
01869  * that case, ip_route() continues as normal.
01870  */
01871 
01872 /*
01873    ---------------------------------------
01874    ---------- Debugging options ----------
01875    ---------------------------------------
01876 */
01877 /**
01878  * LWIP_DBG_MIN_LEVEL: After masking, the value of the debug is
01879  * compared against this value. If it is smaller, then debugging
01880  * messages are written.
01881  */
01882 #ifndef LWIP_DBG_MIN_LEVEL
01883 #define LWIP_DBG_MIN_LEVEL              LWIP_DBG_LEVEL_ALL
01884 #endif
01885 
01886 /**
01887  * LWIP_DBG_TYPES_ON: A mask that can be used to globally enable/disable
01888  * debug messages of certain types.
01889  */
01890 #ifndef LWIP_DBG_TYPES_ON
01891 #define LWIP_DBG_TYPES_ON               LWIP_DBG_ON
01892 #endif
01893 
01894 /**
01895  * ETHARP_DEBUG: Enable debugging in etharp.c.
01896  */
01897 #ifndef ETHARP_DEBUG
01898 #define ETHARP_DEBUG                    LWIP_DBG_OFF
01899 #endif
01900 
01901 /**
01902  * NETIF_DEBUG: Enable debugging in netif.c.
01903  */
01904 #ifndef NETIF_DEBUG
01905 #define NETIF_DEBUG                     LWIP_DBG_OFF
01906 #endif
01907 
01908 /**
01909  * PBUF_DEBUG: Enable debugging in pbuf.c.
01910  */
01911 #ifndef PBUF_DEBUG
01912 #define PBUF_DEBUG                      LWIP_DBG_OFF
01913 #endif
01914 
01915 /**
01916  * API_LIB_DEBUG: Enable debugging in api_lib.c.
01917  */
01918 #ifndef API_LIB_DEBUG
01919 #define API_LIB_DEBUG                   LWIP_DBG_OFF
01920 #endif
01921 
01922 /**
01923  * API_MSG_DEBUG: Enable debugging in api_msg.c.
01924  */
01925 #ifndef API_MSG_DEBUG
01926 #define API_MSG_DEBUG                   LWIP_DBG_OFF
01927 #endif
01928 
01929 /**
01930  * SOCKETS_DEBUG: Enable debugging in sockets.c.
01931  */
01932 #ifndef SOCKETS_DEBUG
01933 #define SOCKETS_DEBUG                   LWIP_DBG_OFF
01934 #endif
01935 
01936 /**
01937  * ICMP_DEBUG: Enable debugging in icmp.c.
01938  */
01939 #ifndef ICMP_DEBUG
01940 #define ICMP_DEBUG                      LWIP_DBG_OFF
01941 #endif
01942 
01943 /**
01944  * IGMP_DEBUG: Enable debugging in igmp.c.
01945  */
01946 #ifndef IGMP_DEBUG
01947 #define IGMP_DEBUG                      LWIP_DBG_OFF
01948 #endif
01949 
01950 /**
01951  * INET_DEBUG: Enable debugging in inet.c.
01952  */
01953 #ifndef INET_DEBUG
01954 #define INET_DEBUG                      LWIP_DBG_OFF
01955 #endif
01956 
01957 /**
01958  * IP_DEBUG: Enable debugging for IP.
01959  */
01960 #ifndef IP_DEBUG
01961 #define IP_DEBUG                        LWIP_DBG_OFF
01962 #endif
01963 
01964 /**
01965  * IP_REASS_DEBUG: Enable debugging in ip_frag.c for both frag & reass.
01966  */
01967 #ifndef IP_REASS_DEBUG
01968 #define IP_REASS_DEBUG                  LWIP_DBG_OFF
01969 #endif
01970 
01971 /**
01972  * RAW_DEBUG: Enable debugging in raw.c.
01973  */
01974 #ifndef RAW_DEBUG
01975 #define RAW_DEBUG                       LWIP_DBG_OFF
01976 #endif
01977 
01978 /**
01979  * MEM_DEBUG: Enable debugging in mem.c.
01980  */
01981 #ifndef MEM_DEBUG
01982 #define MEM_DEBUG                       LWIP_DBG_OFF
01983 #endif
01984 
01985 /**
01986  * MEMP_DEBUG: Enable debugging in memp.c.
01987  */
01988 #ifndef MEMP_DEBUG
01989 #define MEMP_DEBUG                      LWIP_DBG_OFF
01990 #endif
01991 
01992 /**
01993  * SYS_DEBUG: Enable debugging in sys.c.
01994  */
01995 #ifndef SYS_DEBUG
01996 #define SYS_DEBUG                       LWIP_DBG_OFF
01997 #endif
01998 
01999 /**
02000  * TIMERS_DEBUG: Enable debugging in timers.c.
02001  */
02002 #ifndef TIMERS_DEBUG
02003 #define TIMERS_DEBUG                    LWIP_DBG_OFF
02004 #endif
02005 
02006 /**
02007  * TCP_DEBUG: Enable debugging for TCP.
02008  */
02009 #ifndef TCP_DEBUG
02010 #define TCP_DEBUG                       LWIP_DBG_OFF
02011 #endif
02012 
02013 /**
02014  * TCP_INPUT_DEBUG: Enable debugging in tcp_in.c for incoming debug.
02015  */
02016 #ifndef TCP_INPUT_DEBUG
02017 #define TCP_INPUT_DEBUG                 LWIP_DBG_OFF
02018 #endif
02019 
02020 /**
02021  * TCP_FR_DEBUG: Enable debugging in tcp_in.c for fast retransmit.
02022  */
02023 #ifndef TCP_FR_DEBUG
02024 #define TCP_FR_DEBUG                    LWIP_DBG_OFF
02025 #endif
02026 
02027 /**
02028  * TCP_RTO_DEBUG: Enable debugging in TCP for retransmit
02029  * timeout.
02030  */
02031 #ifndef TCP_RTO_DEBUG
02032 #define TCP_RTO_DEBUG                   LWIP_DBG_OFF
02033 #endif
02034 
02035 /**
02036  * TCP_CWND_DEBUG: Enable debugging for TCP congestion window.
02037  */
02038 #ifndef TCP_CWND_DEBUG
02039 #define TCP_CWND_DEBUG                  LWIP_DBG_OFF
02040 #endif
02041 
02042 /**
02043  * TCP_WND_DEBUG: Enable debugging in tcp_in.c for window updating.
02044  */
02045 #ifndef TCP_WND_DEBUG
02046 #define TCP_WND_DEBUG                   LWIP_DBG_OFF
02047 #endif
02048 
02049 /**
02050  * TCP_OUTPUT_DEBUG: Enable debugging in tcp_out.c output functions.
02051  */
02052 #ifndef TCP_OUTPUT_DEBUG
02053 #define TCP_OUTPUT_DEBUG                LWIP_DBG_OFF
02054 #endif
02055 
02056 /**
02057  * TCP_RST_DEBUG: Enable debugging for TCP with the RST message.
02058  */
02059 #ifndef TCP_RST_DEBUG
02060 #define TCP_RST_DEBUG                   LWIP_DBG_OFF
02061 #endif
02062 
02063 /**
02064  * TCP_QLEN_DEBUG: Enable debugging for TCP queue lengths.
02065  */
02066 #ifndef TCP_QLEN_DEBUG
02067 #define TCP_QLEN_DEBUG                  LWIP_DBG_OFF
02068 #endif
02069 
02070 /**
02071  * UDP_DEBUG: Enable debugging in UDP.
02072  */
02073 #ifndef UDP_DEBUG
02074 #define UDP_DEBUG                       LWIP_DBG_OFF
02075 #endif
02076 
02077 /**
02078  * TCPIP_DEBUG: Enable debugging in tcpip.c.
02079  */
02080 #ifndef TCPIP_DEBUG
02081 #define TCPIP_DEBUG                     LWIP_DBG_OFF
02082 #endif
02083 
02084 /**
02085  * PPP_DEBUG: Enable debugging for PPP.
02086  */
02087 #ifndef PPP_DEBUG
02088 #define PPP_DEBUG                       LWIP_DBG_OFF
02089 #endif
02090 
02091 /**
02092  * SLIP_DEBUG: Enable debugging in slipif.c.
02093  */
02094 #ifndef SLIP_DEBUG
02095 #define SLIP_DEBUG                      LWIP_DBG_OFF
02096 #endif
02097 
02098 /**
02099  * DHCP_DEBUG: Enable debugging in dhcp.c.
02100  */
02101 #ifndef DHCP_DEBUG
02102 #define DHCP_DEBUG                      LWIP_DBG_OFF
02103 #endif
02104 
02105 /**
02106  * AUTOIP_DEBUG: Enable debugging in autoip.c.
02107  */
02108 #ifndef AUTOIP_DEBUG
02109 #define AUTOIP_DEBUG                    LWIP_DBG_OFF
02110 #endif
02111 
02112 /**
02113  * SNMP_MSG_DEBUG: Enable debugging for SNMP messages.
02114  */
02115 #ifndef SNMP_MSG_DEBUG
02116 #define SNMP_MSG_DEBUG                  LWIP_DBG_OFF
02117 #endif
02118 
02119 /**
02120  * SNMP_MIB_DEBUG: Enable debugging for SNMP MIBs.
02121  */
02122 #ifndef SNMP_MIB_DEBUG
02123 #define SNMP_MIB_DEBUG                  LWIP_DBG_OFF
02124 #endif
02125 
02126 /**
02127  * DNS_DEBUG: Enable debugging for DNS.
02128  */
02129 #ifndef DNS_DEBUG
02130 #define DNS_DEBUG                       LWIP_DBG_OFF
02131 #endif
02132 
02133 #endif /* __LWIP_OPT_H__ */