| /* |
| * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| * |
| * This file is part of the lwIP TCP/IP stack. |
| * |
| * Author: Adam Dunkels <adam@sics.se> |
| * |
| */ |
| #ifndef __LWIP_OPT_H__ |
| #define __LWIP_OPT_H__ |
| |
| /* Include user defined options first */ |
| #include "lwipopts.h" |
| #include "lwip/debug.h" |
| |
| /* Define default values for unconfigured parameters. */ |
| |
| /* Platform specific locking */ |
| |
| /* |
| * enable SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection |
| * for certain critical regions during buffer allocation, deallocation and memory |
| * allocation and deallocation. |
| */ |
| #ifndef SYS_LIGHTWEIGHT_PROT |
| #define SYS_LIGHTWEIGHT_PROT 0 |
| #endif |
| |
| #ifndef NO_SYS |
| #define NO_SYS 0 |
| #endif |
| /* ---------- Memory options ---------- */ |
| /* MEM_ALIGNMENT: should be set to the alignment of the CPU for which |
| lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2 |
| byte alignment -> define MEM_ALIGNMENT to 2. */ |
| |
| #ifndef MEM_ALIGNMENT |
| #define MEM_ALIGNMENT 1 |
| #endif |
| |
| /* MEM_SIZE: the size of the heap memory. If the application will send |
| a lot of data that needs to be copied, this should be set high. */ |
| #ifndef MEM_SIZE |
| #define MEM_SIZE 1600 |
| #endif |
| |
| #ifndef MEMP_SANITY_CHECK |
| #define MEMP_SANITY_CHECK 0 |
| #endif |
| |
| /* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application |
| sends a lot of data out of ROM (or other static memory), this |
| should be set high. */ |
| #ifndef MEMP_NUM_PBUF |
| #define MEMP_NUM_PBUF 16 |
| #endif |
| |
| /* Number of raw connection PCBs */ |
| #ifndef MEMP_NUM_RAW_PCB |
| #define MEMP_NUM_RAW_PCB 4 |
| #endif |
| |
| /* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One |
| per active UDP "connection". */ |
| #ifndef MEMP_NUM_UDP_PCB |
| #define MEMP_NUM_UDP_PCB 4 |
| #endif |
| /* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP |
| connections. */ |
| #ifndef MEMP_NUM_TCP_PCB |
| #define MEMP_NUM_TCP_PCB 5 |
| #endif |
| /* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP |
| connections. */ |
| #ifndef MEMP_NUM_TCP_PCB_LISTEN |
| #define MEMP_NUM_TCP_PCB_LISTEN 8 |
| #endif |
| /* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP |
| segments. */ |
| #ifndef MEMP_NUM_TCP_SEG |
| #define MEMP_NUM_TCP_SEG 16 |
| #endif |
| /* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active |
| timeouts. */ |
| #ifndef MEMP_NUM_SYS_TIMEOUT |
| #define MEMP_NUM_SYS_TIMEOUT 3 |
| #endif |
| |
| /* The following four are used only with the sequential API and can be |
| set to 0 if the application only will use the raw API. */ |
| /* MEMP_NUM_NETBUF: the number of struct netbufs. */ |
| #ifndef MEMP_NUM_NETBUF |
| #define MEMP_NUM_NETBUF 2 |
| #endif |
| /* MEMP_NUM_NETCONN: the number of struct netconns. */ |
| #ifndef MEMP_NUM_NETCONN |
| #define MEMP_NUM_NETCONN 4 |
| #endif |
| /* MEMP_NUM_APIMSG: the number of struct api_msg, used for |
| communication between the TCP/IP stack and the sequential |
| programs. */ |
| #ifndef MEMP_NUM_API_MSG |
| #define MEMP_NUM_API_MSG 8 |
| #endif |
| /* MEMP_NUM_TCPIPMSG: the number of struct tcpip_msg, which is used |
| for sequential API communication and incoming packets. Used in |
| src/api/tcpip.c. */ |
| #ifndef MEMP_NUM_TCPIP_MSG |
| #define MEMP_NUM_TCPIP_MSG 8 |
| #endif |
| |
| /* ---------- Pbuf options ---------- */ |
| /* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */ |
| |
| #ifndef PBUF_POOL_SIZE |
| #define PBUF_POOL_SIZE 16 |
| #endif |
| |
| /* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */ |
| |
| #ifndef PBUF_POOL_BUFSIZE |
| #define PBUF_POOL_BUFSIZE 128 |
| #endif |
| |
| /* PBUF_LINK_HLEN: the number of bytes that should be allocated for a |
| link level header. Defaults to 14 for Ethernet. */ |
| |
| #ifndef PBUF_LINK_HLEN |
| #define PBUF_LINK_HLEN 14 |
| #endif |
| |
| |
| |
| /* ---------- ARP options ---------- */ |
| |
| /** Number of active hardware address, IP address pairs cached */ |
| #ifndef ARP_TABLE_SIZE |
| #define ARP_TABLE_SIZE 10 |
| #endif |
| |
| /** |
| * If enabled, outgoing packets are queued during hardware address |
| * resolution. |
| * |
| * This feature has not stabilized yet. Single-packet queueing is |
| * believed to be stable, multi-packet queueing is believed to |
| * clash with the TCP segment queueing. |
| * |
| * As multi-packet-queueing is currently disabled, enabling this |
| * _should_ work, but we need your testing feedback on lwip-users. |
| * |
| */ |
| #ifndef ARP_QUEUEING |
| #define ARP_QUEUEING 1 |
| #endif |
| |
| /* This option is deprecated */ |
| #ifdef ETHARP_QUEUE_FIRST |
| #error ETHARP_QUEUE_FIRST option is deprecated. Remove it from your lwipopts.h. |
| #endif |
| |
| /* This option is removed to comply with the ARP standard */ |
| #ifdef ETHARP_ALWAYS_INSERT |
| #error ETHARP_ALWAYS_INSERT option is deprecated. Remove it from your lwipopts.h. |
| #endif |
| |
| /* ---------- IP options ---------- */ |
| /* Define IP_FORWARD to 1 if you wish to have the ability to forward |
| IP packets across network interfaces. If you are going to run lwIP |
| on a device with only one network interface, define this to 0. */ |
| #ifndef IP_FORWARD |
| #define IP_FORWARD 0 |
| #endif |
| |
| /* If defined to 1, IP options are allowed (but not parsed). If |
| defined to 0, all packets with IP options are dropped. */ |
| #ifndef IP_OPTIONS |
| #define IP_OPTIONS 1 |
| #endif |
| |
| /** IP reassembly and segmentation. Even if they both deal with IP |
| * fragments, note that these are orthogonal, one dealing with incoming |
| * packets, the other with outgoing packets |
| */ |
| |
| /** Reassemble incoming fragmented IP packets */ |
| #ifndef IP_REASSEMBLY |
| #define IP_REASSEMBLY 1 |
| #endif |
| |
| /** Fragment outgoing IP packets if their size exceeds MTU */ |
| #ifndef IP_FRAG |
| #define IP_FRAG 1 |
| #endif |
| |
| /* ---------- ICMP options ---------- */ |
| |
| #ifndef ICMP_TTL |
| #define ICMP_TTL 255 |
| #endif |
| |
| /* ---------- RAW options ---------- */ |
| |
| #ifndef LWIP_RAW |
| #define LWIP_RAW 1 |
| #endif |
| |
| #ifndef RAW_TTL |
| #define RAW_TTL 255 |
| #endif |
| |
| /* ---------- DHCP options ---------- */ |
| |
| #ifndef LWIP_DHCP |
| #define LWIP_DHCP 0 |
| #endif |
| |
| /* 1 if you want to do an ARP check on the offered address |
| (recommended). */ |
| #ifndef DHCP_DOES_ARP_CHECK |
| #define DHCP_DOES_ARP_CHECK 1 |
| #endif |
| |
| /* ---------- UDP options ---------- */ |
| #ifndef LWIP_UDP |
| #define LWIP_UDP 1 |
| #endif |
| |
| #ifndef UDP_TTL |
| #define UDP_TTL 255 |
| #endif |
| |
| /* ---------- TCP options ---------- */ |
| #ifndef LWIP_TCP |
| #define LWIP_TCP 1 |
| #endif |
| |
| #ifndef TCP_TTL |
| #define TCP_TTL 255 |
| #endif |
| |
| #ifndef TCP_WND |
| #define TCP_WND 2048 |
| #endif |
| |
| #ifndef TCP_MAXRTX |
| #define TCP_MAXRTX 12 |
| #endif |
| |
| #ifndef TCP_SYNMAXRTX |
| #define TCP_SYNMAXRTX 6 |
| #endif |
| |
| |
| /* Controls if TCP should queue segments that arrive out of |
| order. Define to 0 if your device is low on memory. */ |
| #ifndef TCP_QUEUE_OOSEQ |
| #define TCP_QUEUE_OOSEQ 1 |
| #endif |
| |
| /* TCP Maximum segment size. */ |
| #ifndef TCP_MSS |
| #define TCP_MSS 128 /* A *very* conservative default. */ |
| #endif |
| |
| /* TCP sender buffer space (bytes). */ |
| #ifndef TCP_SND_BUF |
| #define TCP_SND_BUF 256 |
| #endif |
| |
| /* TCP sender buffer space (pbufs). This must be at least = 2 * |
| TCP_SND_BUF/TCP_MSS for things to work. */ |
| #ifndef TCP_SND_QUEUELEN |
| #define TCP_SND_QUEUELEN 4 * TCP_SND_BUF/TCP_MSS |
| #endif |
| |
| |
| /* Maximum number of retransmissions of data segments. */ |
| |
| /* Maximum number of retransmissions of SYN segments. */ |
| |
| /* TCP writable space (bytes). This must be less than or equal |
| to TCP_SND_BUF. It is the amount of space which must be |
| available in the tcp snd_buf for select to return writable */ |
| #ifndef TCP_SNDLOWAT |
| #define TCP_SNDLOWAT TCP_SND_BUF/2 |
| #endif |
| |
| /* Support loop interface (127.0.0.1) */ |
| #ifndef LWIP_HAVE_LOOPIF |
| #define LWIP_HAVE_LOOPIF 0 |
| #endif |
| |
| #ifndef LWIP_EVENT_API |
| #define LWIP_EVENT_API 0 |
| #define LWIP_CALLBACK_API 1 |
| #else |
| #define LWIP_EVENT_API 1 |
| #define LWIP_CALLBACK_API 0 |
| #endif |
| |
| #ifndef LWIP_COMPAT_SOCKETS |
| #define LWIP_COMPAT_SOCKETS 1 |
| #endif |
| |
| |
| #ifndef TCPIP_THREAD_PRIO |
| #define TCPIP_THREAD_PRIO 1 |
| #endif |
| |
| #ifndef SLIPIF_THREAD_PRIO |
| #define SLIPIF_THREAD_PRIO 1 |
| #endif |
| |
| #ifndef PPP_THREAD_PRIO |
| #define PPP_THREAD_PRIO 1 |
| #endif |
| |
| #ifndef DEFAULT_THREAD_PRIO |
| #define DEFAULT_THREAD_PRIO 1 |
| #endif |
| |
| |
| /* ---------- Socket Options ---------- */ |
| /* Enable SO_REUSEADDR and SO_REUSEPORT options */ |
| #ifdef SO_REUSE |
| /* I removed the lot since this was an ugly hack. It broke the raw-API. |
| It also came with many ugly goto's, Christiaan Simons. */ |
| #error "SO_REUSE currently unavailable, this was a hack" |
| #endif |
| |
| |
| /* ---------- Statistics options ---------- */ |
| #ifndef LWIP_STATS |
| #define LWIP_STATS 1 |
| #endif |
| |
| #if LWIP_STATS |
| |
| #ifndef LWIP_STATS_DISPLAY |
| #define LWIP_STATS_DISPLAY 0 |
| #endif |
| |
| #ifndef LINK_STATS |
| #define LINK_STATS 1 |
| #endif |
| |
| #ifndef IP_STATS |
| #define IP_STATS 1 |
| #endif |
| |
| #ifndef IPFRAG_STATS |
| #define IPFRAG_STATS 1 |
| #endif |
| |
| #ifndef ICMP_STATS |
| #define ICMP_STATS 1 |
| #endif |
| |
| #ifndef UDP_STATS |
| #define UDP_STATS 1 |
| #endif |
| |
| #ifndef TCP_STATS |
| #define TCP_STATS 1 |
| #endif |
| |
| #ifndef MEM_STATS |
| #define MEM_STATS 1 |
| #endif |
| |
| #ifndef MEMP_STATS |
| #define MEMP_STATS 1 |
| #endif |
| |
| #ifndef PBUF_STATS |
| #define PBUF_STATS 1 |
| #endif |
| |
| #ifndef SYS_STATS |
| #define SYS_STATS 1 |
| #endif |
| |
| #ifndef RAW_STATS |
| #define RAW_STATS 0 |
| #endif |
| |
| #else |
| |
| #define LINK_STATS 0 |
| #define IP_STATS 0 |
| #define IPFRAG_STATS 0 |
| #define ICMP_STATS 0 |
| #define UDP_STATS 0 |
| #define TCP_STATS 0 |
| #define MEM_STATS 0 |
| #define MEMP_STATS 0 |
| #define PBUF_STATS 0 |
| #define SYS_STATS 0 |
| #define RAW_STATS 0 |
| #define LWIP_STATS_DISPLAY 0 |
| |
| #endif /* LWIP_STATS */ |
| |
| /* ---------- PPP options ---------- */ |
| |
| #ifndef PPP_SUPPORT |
| #define PPP_SUPPORT 0 /* Set for PPP */ |
| #endif |
| |
| #if PPP_SUPPORT |
| |
| #define NUM_PPP 1 /* Max PPP sessions. */ |
| |
| |
| |
| #ifndef PAP_SUPPORT |
| #define PAP_SUPPORT 0 /* Set for PAP. */ |
| #endif |
| |
| #ifndef CHAP_SUPPORT |
| #define CHAP_SUPPORT 0 /* Set for CHAP. */ |
| #endif |
| |
| #define MSCHAP_SUPPORT 0 /* Set for MSCHAP (NOT FUNCTIONAL!) */ |
| #define CBCP_SUPPORT 0 /* Set for CBCP (NOT FUNCTIONAL!) */ |
| #define CCP_SUPPORT 0 /* Set for CCP (NOT FUNCTIONAL!) */ |
| |
| #ifndef VJ_SUPPORT |
| #define VJ_SUPPORT 0 /* Set for VJ header compression. */ |
| #endif |
| |
| #ifndef MD5_SUPPORT |
| #define MD5_SUPPORT 0 /* Set for MD5 (see also CHAP) */ |
| #endif |
| |
| |
| /* |
| * Timeouts. |
| */ |
| #define FSM_DEFTIMEOUT 6 /* Timeout time in seconds */ |
| #define FSM_DEFMAXTERMREQS 2 /* Maximum Terminate-Request transmissions */ |
| #define FSM_DEFMAXCONFREQS 10 /* Maximum Configure-Request transmissions */ |
| #define FSM_DEFMAXNAKLOOPS 5 /* Maximum number of nak loops */ |
| |
| #define UPAP_DEFTIMEOUT 6 /* Timeout (seconds) for retransmitting req */ |
| #define UPAP_DEFREQTIME 30 /* Time to wait for auth-req from peer */ |
| |
| #define CHAP_DEFTIMEOUT 6 /* Timeout time in seconds */ |
| #define CHAP_DEFTRANSMITS 10 /* max # times to send challenge */ |
| |
| |
| /* Interval in seconds between keepalive echo requests, 0 to disable. */ |
| #if 1 |
| #define LCP_ECHOINTERVAL 0 |
| #else |
| #define LCP_ECHOINTERVAL 10 |
| #endif |
| |
| /* Number of unanswered echo requests before failure. */ |
| #define LCP_MAXECHOFAILS 3 |
| |
| /* Max Xmit idle time (in jiffies) before resend flag char. */ |
| #define PPP_MAXIDLEFLAG 100 |
| |
| /* |
| * Packet sizes |
| * |
| * Note - lcp shouldn't be allowed to negotiate stuff outside these |
| * limits. See lcp.h in the pppd directory. |
| * (XXX - these constants should simply be shared by lcp.c instead |
| * of living in lcp.h) |
| */ |
| #define PPP_MTU 1500 /* Default MTU (size of Info field) */ |
| #if 0 |
| #define PPP_MAXMTU 65535 - (PPP_HDRLEN + PPP_FCSLEN) |
| #else |
| #define PPP_MAXMTU 1500 /* Largest MTU we allow */ |
| #endif |
| #define PPP_MINMTU 64 |
| #define PPP_MRU 1500 /* default MRU = max length of info field */ |
| #define PPP_MAXMRU 1500 /* Largest MRU we allow */ |
| #define PPP_DEFMRU 296 /* Try for this */ |
| #define PPP_MINMRU 128 /* No MRUs below this */ |
| |
| |
| #define MAXNAMELEN 256 /* max length of hostname or name for auth */ |
| #define MAXSECRETLEN 256 /* max length of password or secret */ |
| |
| #endif /* PPP_SUPPORT */ |
| |
| /* checksum options - set to zero for hardware checksum support */ |
| |
| #ifndef CHECKSUM_GEN_IP |
| #define CHECKSUM_GEN_IP 1 |
| #endif |
| |
| #ifndef CHECKSUM_GEN_UDP |
| #define CHECKSUM_GEN_UDP 1 |
| #endif |
| |
| #ifndef CHECKSUM_GEN_TCP |
| #define CHECKSUM_GEN_TCP 1 |
| #endif |
| |
| #ifndef CHECKSUM_CHECK_IP |
| #define CHECKSUM_CHECK_IP 1 |
| #endif |
| |
| #ifndef CHECKSUM_CHECK_UDP |
| #define CHECKSUM_CHECK_UDP 1 |
| #endif |
| |
| #ifndef CHECKSUM_CHECK_TCP |
| #define CHECKSUM_CHECK_TCP 1 |
| #endif |
| |
| /* Debugging options all default to off */ |
| |
| #ifndef DBG_TYPES_ON |
| #define DBG_TYPES_ON 0 |
| #endif |
| |
| #ifndef ETHARP_DEBUG |
| #define ETHARP_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef NETIF_DEBUG |
| #define NETIF_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef PBUF_DEBUG |
| #define PBUF_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef API_LIB_DEBUG |
| #define API_LIB_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef API_MSG_DEBUG |
| #define API_MSG_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef SOCKETS_DEBUG |
| #define SOCKETS_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef ICMP_DEBUG |
| #define ICMP_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef INET_DEBUG |
| #define INET_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef IP_DEBUG |
| #define IP_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef IP_REASS_DEBUG |
| #define IP_REASS_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef RAW_DEBUG |
| #define RAW_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef MEM_DEBUG |
| #define MEM_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef MEMP_DEBUG |
| #define MEMP_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef SYS_DEBUG |
| #define SYS_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_DEBUG |
| #define TCP_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_INPUT_DEBUG |
| #define TCP_INPUT_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_FR_DEBUG |
| #define TCP_FR_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_RTO_DEBUG |
| #define TCP_RTO_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_REXMIT_DEBUG |
| #define TCP_REXMIT_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_CWND_DEBUG |
| #define TCP_CWND_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_WND_DEBUG |
| #define TCP_WND_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_OUTPUT_DEBUG |
| #define TCP_OUTPUT_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_RST_DEBUG |
| #define TCP_RST_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCP_QLEN_DEBUG |
| #define TCP_QLEN_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef UDP_DEBUG |
| #define UDP_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef TCPIP_DEBUG |
| #define TCPIP_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef PPP_DEBUG |
| #define PPP_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef SLIP_DEBUG |
| #define SLIP_DEBUG DBG_OFF |
| #endif |
| |
| #ifndef DHCP_DEBUG |
| #define DHCP_DEBUG DBG_OFF |
| #endif |
| |
| |
| #ifndef DBG_MIN_LEVEL |
| #define DBG_MIN_LEVEL DBG_LEVEL_OFF |
| #endif |
| |
| #endif /* __LWIP_OPT_H__ */ |
| |
| |
| |