Mbed OS Reference | lwipopts.h Source File

 /* Copyright (C) 2012 mbed.org, MIT License
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
  * and associated documentation files (the "Software"), to deal in the Software without restriction,
  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in all copies or
  * substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
 #ifndef LWIPOPTS_H
 #define LWIPOPTS_H
 
 // Workaround for Linux timeval
 #if defined (TOOLCHAIN_GCC)
 #define LWIP_TIMEVAL_PRIVATE 0
 #include <sys/time.h>
 #endif
 #include "nsapi_types.h"
 #include "mbed_retarget.h"
 
 // Operating System
 #define NO_SYS                      0
 
 #if !MBED_CONF_LWIP_IPV4_ENABLED && !MBED_CONF_LWIP_IPV6_ENABLED
 #error "Either IPv4 or IPv6 must be enabled."
 #endif
 
 #define LWIP_IPV4                   MBED_CONF_LWIP_IPV4_ENABLED
 
 #define LWIP_IPV6                   MBED_CONF_LWIP_IPV6_ENABLED
 
 #define LWIP_PROVIDE_ERRNO 0
 
 // On dual stack configuration how long to wait for both or preferred stack
 // addresses before completing bring up.
 #if LWIP_IPV4 && LWIP_IPV6
 #if MBED_CONF_LWIP_ADDR_TIMEOUT_MODE
 #define BOTH_ADDR_TIMEOUT           MBED_CONF_LWIP_ADDR_TIMEOUT
 #define PREF_ADDR_TIMEOUT           0
 #else
 #define PREF_ADDR_TIMEOUT           MBED_CONF_LWIP_ADDR_TIMEOUT
 #define BOTH_ADDR_TIMEOUT           0
 #endif
 #else
 #define PREF_ADDR_TIMEOUT           0
 #define BOTH_ADDR_TIMEOUT           0
 #endif
 
 
 #define DHCP_TIMEOUT                MBED_CONF_LWIP_DHCP_TIMEOUT
 
 #define LINK_TIMEOUT                60
 
 #define PREF_IPV4                   1
 #define PREF_IPV6                   2
 
 #if MBED_CONF_LWIP_IP_VER_PREF == 6
 #define IP_VERSION_PREF             PREF_IPV6
 #elif MBED_CONF_LWIP_IP_VER_PREF == 4
 #define IP_VERSION_PREF             PREF_IPV4
 #else
 #error "Either IPv4 or IPv6 must be preferred."
 #endif
 
 #undef  LWIP_DEBUG
 #if MBED_CONF_LWIP_DEBUG_ENABLED
 #define LWIP_DEBUG                  1
 #endif
 
 #if NO_SYS == 0
 #include "cmsis_os2.h"
 
 #define SYS_LIGHTWEIGHT_PROT        1
 
 #define LWIP_RAW                    MBED_CONF_LWIP_RAW_SOCKET_ENABLED
 
 #define MEMP_NUM_TCPIP_MSG_INPKT    MBED_CONF_LWIP_MEMP_NUM_TCPIP_MSG_INPKT
 
 // Thread stacks use 8-byte alignment
 #define LWIP_ALIGN_UP(pos, align) ((pos) % (align) ? (pos) +  ((align) - (pos) % (align)) : (pos))
 
 #ifdef LWIP_DEBUG
 // For LWIP debug, double the stack
 #define TCPIP_THREAD_STACKSIZE      LWIP_ALIGN_UP(MBED_CONF_LWIP_TCPIP_THREAD_STACKSIZE*2, 8)
 #elif MBED_DEBUG
 // When debug is enabled on the build increase stack 25 percent
 #define TCPIP_THREAD_STACKSIZE      LWIP_ALIGN_UP(MBED_CONF_LWIP_TCPIP_THREAD_STACKSIZE + MBED_CONF_LWIP_TCPIP_THREAD_STACKSIZE / 4, 8)
 #else
 #define TCPIP_THREAD_STACKSIZE      LWIP_ALIGN_UP(MBED_CONF_LWIP_TCPIP_THREAD_STACKSIZE, 8)
 #endif
 
 // Thread priority (osPriorityNormal by default)
 #define TCPIP_THREAD_PRIO           (MBED_CONF_LWIP_TCPIP_THREAD_PRIORITY)
 
 #ifdef LWIP_DEBUG
 #define DEFAULT_THREAD_STACKSIZE    LWIP_ALIGN_UP(MBED_CONF_LWIP_DEFAULT_THREAD_STACKSIZE*2, 8)
 #else
 #define DEFAULT_THREAD_STACKSIZE    LWIP_ALIGN_UP(MBED_CONF_LWIP_DEFAULT_THREAD_STACKSIZE, 8)
 #endif
 
 #define MEMP_NUM_SYS_TIMEOUT        16
 
 #define sys_msleep(ms) sys_msleep(ms)
 
 #endif
 
 // 32-bit alignment
 #define MEM_ALIGNMENT               4
 
 #define LWIP_RAM_HEAP_POINTER       lwip_ram_heap
 
 // Number of simultaneously queued TCP segments.
 #define MEMP_NUM_TCP_SEG            MBED_CONF_LWIP_MEMP_NUM_TCP_SEG
 
 // TCP Maximum segment size.
 #define TCP_MSS                     MBED_CONF_LWIP_TCP_MSS
 
 // TCP sender buffer space (bytes).
 #define TCP_SND_BUF                 MBED_CONF_LWIP_TCP_SND_BUF
 
 // TCP sender buffer space (bytes).
 #define TCP_WND                     MBED_CONF_LWIP_TCP_WND
 
 #define TCP_MAXRTX                  MBED_CONF_LWIP_TCP_MAXRTX
 
 #define TCP_SYNMAXRTX               MBED_CONF_LWIP_TCP_SYNMAXRTX
 
 // Number of pool pbufs.
 // Each requires 684 bytes of RAM (if MSS=536 and PBUF_POOL_BUFSIZE defaulting to be based on MSS)
 #define PBUF_POOL_SIZE              MBED_CONF_LWIP_PBUF_POOL_SIZE
 
 #ifdef MBED_CONF_LWIP_PBUF_POOL_BUFSIZE
 #undef PBUF_POOL_BUFSIZE
 #define PBUF_POOL_BUFSIZE           LWIP_MEM_ALIGN_SIZE(MBED_CONF_LWIP_PBUF_POOL_BUFSIZE)
 #else
 #ifndef PBUF_POOL_BUFSIZE
 #if LWIP_IPV6
 #define PBUF_POOL_BUFSIZE               LWIP_MEM_ALIGN_SIZE(TCP_MSS+20+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN)
 #elif LWIP_IPV4
 #define PBUF_POOL_BUFSIZE               LWIP_MEM_ALIGN_SIZE(TCP_MSS+20+20+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN)
 #endif
 #endif
 #endif
 
 #define MEM_SIZE                    MBED_CONF_LWIP_MEM_SIZE
 
 // One tcp_pcb_listen is needed for each TCP server.
 // Each requires 72 bytes of RAM.
 #define MEMP_NUM_TCP_PCB_LISTEN     MBED_CONF_LWIP_TCP_SERVER_MAX
 
 // One is tcp_pcb needed for each TCPSocket.
 // Each requires 196 bytes of RAM.
 #define MEMP_NUM_TCP_PCB            MBED_CONF_LWIP_TCP_SOCKET_MAX
 
 // One udp_pcb is needed for each UDPSocket.
 // Each requires 84 bytes of RAM (total rounded to multiple of 512).
 #define MEMP_NUM_UDP_PCB            MBED_CONF_LWIP_UDP_SOCKET_MAX
 
 // Number of non-pool pbufs.
 // Each requires 92 bytes of RAM.
 #define MEMP_NUM_PBUF               MBED_CONF_LWIP_NUM_PBUF
 
 // Each netbuf requires 64 bytes of RAM.
 #define MEMP_NUM_NETBUF             MBED_CONF_LWIP_NUM_NETBUF
 
 // One netconn is needed for each UDPSocket or TCPSocket.
 // Each requires 236 bytes of RAM (total rounded to multiple of 512).
 #define MEMP_NUM_NETCONN            MBED_CONF_LWIP_SOCKET_MAX
 
 #if MBED_CONF_LWIP_TCP_ENABLED
 #define LWIP_TCP                    1
 #define TCP_OVERSIZE                0
 #define LWIP_TCP_KEEPALIVE          1
 
 #define TCP_CLOSE_TIMEOUT            MBED_CONF_LWIP_TCP_CLOSE_TIMEOUT
 
 #else
 #define LWIP_TCP                    0
 #endif
 
 #define LWIP_DNS                    1
 // Only DNS address storage is enabled
 #define LWIP_FULL_DNS               0
 #define LWIP_SOCKET                 0
 
 #define SO_REUSE                    1
 
 // Support Multicast
 #include "stdlib.h"
 #define LWIP_IGMP                   LWIP_IPV4
 #define LWIP_RAND()                 lwip_get_random()
 
 #define LWIP_COMPAT_SOCKETS         0
 #define LWIP_POSIX_SOCKETS_IO_NAMES 0
 
 #define LWIP_BROADCAST_PING         1
 
 // Fragmentation on, as per IPv4 default
 #define LWIP_IPV6_FRAG              LWIP_IPV6
 
 // Queuing, default is  "disabled", as per IPv4 default (so actually queues 1)
 #define LWIP_ND6_QUEUEING           MBED_CONF_ND6_QUEUEING
 
 // Debug Options
 #define NETIF_DEBUG                 LWIP_DBG_OFF
 #define PBUF_DEBUG                  LWIP_DBG_OFF
 #define API_LIB_DEBUG               LWIP_DBG_OFF
 #define API_MSG_DEBUG               LWIP_DBG_OFF
 #define SOCKETS_DEBUG               LWIP_DBG_OFF
 #define ICMP_DEBUG                  LWIP_DBG_OFF
 #define IGMP_DEBUG                  LWIP_DBG_OFF
 #define INET_DEBUG                  LWIP_DBG_OFF
 #define IP_DEBUG                    LWIP_DBG_OFF
 #define IP_REASS_DEBUG              LWIP_DBG_OFF
 #define RAW_DEBUG                   LWIP_DBG_OFF
 #define MEM_DEBUG                   LWIP_DBG_OFF
 #define MEMP_DEBUG                  LWIP_DBG_OFF
 #define SYS_DEBUG                   LWIP_DBG_OFF
 #define TIMERS_DEBUG                LWIP_DBG_OFF
 #define TCP_DEBUG                   LWIP_DBG_OFF
 #define TCP_INPUT_DEBUG             LWIP_DBG_OFF
 #define TCP_FR_DEBUG                LWIP_DBG_OFF
 #define TCP_RTO_DEBUG               LWIP_DBG_OFF
 #define TCP_CWND_DEBUG              LWIP_DBG_OFF
 #define TCP_WND_DEBUG               LWIP_DBG_OFF
 #define TCP_OUTPUT_DEBUG            LWIP_DBG_OFF
 #define TCP_RST_DEBUG               LWIP_DBG_OFF
 #define TCP_QLEN_DEBUG              LWIP_DBG_OFF
 #define UDP_DEBUG                   LWIP_DBG_OFF
 #define TCPIP_DEBUG                 LWIP_DBG_OFF
 #define SLIP_DEBUG                  LWIP_DBG_OFF
 #define DHCP_DEBUG                  LWIP_DBG_OFF
 #define AUTOIP_DEBUG                LWIP_DBG_OFF
 #define DNS_DEBUG                   LWIP_DBG_OFF
 #define IP6_DEBUG                   LWIP_DBG_OFF
 
 #define ETHARP_DEBUG                LWIP_DBG_OFF
 #define UDP_LPC_EMAC                LWIP_DBG_OFF
 
 #ifdef LWIP_DEBUG
 #define MEMP_OVERFLOW_CHECK         1
 #define MEMP_SANITY_CHECK           1
 #define LWIP_DBG_TYPES_ON           LWIP_DBG_ON
 #define LWIP_DBG_MIN_LEVEL          LWIP_DBG_LEVEL_ALL
 #else
 #define LWIP_NOASSERT               1
 #define LWIP_STATS                  0
 #endif
 
 #define TRACE_TO_ASCII_HEX_DUMP     0
 
 #define LWIP_PLATFORM_BYTESWAP      1
 
 #define LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS 1
 
 // Interface type configuration
 
 #if MBED_CONF_LWIP_ETHERNET_ENABLED
 #define LWIP_ARP                    1
 #define LWIP_ETHERNET               1
 #define LWIP_DHCP                   LWIP_IPV4
 #else
 #define LWIP_ARP                    0
 #define LWIP_ETHERNET               0
 #endif // MBED_CONF_LWIP_ETHERNET_ENABLED
 
 #if MBED_CONF_LWIP_L3IP_ENABLED
 #define LWIP_L3IP                   1
 #else
 #define LWIP_L3IP                   0
 #endif
 
 //Maximum size of network interface name
 #define INTERFACE_NAME_MAX_SIZE NSAPI_INTERFACE_NAME_MAX_SIZE
 // Note generic macro name used rather than MBED_CONF_LWIP_PPP_ENABLED
 // to allow users like PPPCellularInterface to detect that nsapi_ppp.h is available.
 
 // Enable PPP for now either from lwIP PPP configuration (obsolete) or from PPP service configuration
 #if MBED_CONF_PPP_ENABLED || MBED_CONF_LWIP_PPP_ENABLED
 
 #define PPP_SUPPORT                      1
 
 #if MBED_CONF_PPP_IPV4_ENABLED || MBED_CONF_LWIP_IPV4_ENABLED
 #define LWIP 0x11991199
 #if (MBED_CONF_NSAPI_DEFAULT_STACK == LWIP) && !MBED_CONF_LWIP_IPV4_ENABLED
 #error LWIP: IPv4 PPP enabled but not IPv4
 #endif
 #undef LWIP
 #define PPP_IPV4_SUPPORT                 1
 #endif
 
 #if MBED_CONF_PPP_IPV6_ENABLED || MBED_CONF_LWIP_IPV6_ENABLED
 #define LWIP 0x11991199
 #if (MBED_CONF_NSAPI_DEFAULT_STACK == LWIP) && !MBED_CONF_LWIP_IPV6_ENABLED
 #error LWIP: IPv6 PPP enabled but not IPv6
 #endif
 #undef LWIP
 #define PPP_IPV6_SUPPORT                 1
 // Later to be dynamic for use for multiple interfaces
 #define LWIP_IPV6_DUP_DETECT_ATTEMPTS    0
 #endif
 
 #endif
 
 // Make sure we default these to off, so
 // LWIP doesn't default to on
 #ifndef LWIP_ARP
 #define LWIP_ARP                    0
 #endif
 
 // Checksum-on-copy disabled due to https://savannah.nongnu.org/bugs/?50914
 #define LWIP_CHECKSUM_ON_COPY       0
 
 #define LWIP_NETIF_HOSTNAME         1
 #define LWIP_NETIF_STATUS_CALLBACK  1
 #define LWIP_NETIF_LINK_CALLBACK    1
 
 #define DNS_TABLE_SIZE                  2
 #define DNS_MAX_NAME_LENGTH             128
 
 #include "lwip_random.h"
 #include "lwip_tcp_isn.h"
 #define LWIP_HOOK_TCP_ISN lwip_hook_tcp_isn
 #ifdef MBEDTLS_MD5_C
 #define LWIP_USE_EXTERNAL_MBEDTLS       1
 #else
 #define LWIP_USE_EXTERNAL_MBEDTLS       0
 #endif
 
 #define LWIP_ND6_RDNSS_MAX_DNS_SERVERS  MBED_CONF_LWIP_ND6_RDNSS_MAX_DNS_SERVERS
 
 #endif /* LWIPOPTS_H_ */
Important Information for this Arm website
