Re: [lwip-users] TCP listen fucntion always return <=0

[Oscar F]

Hello again, at the moment the creation and listening of socket TCP is work!!. the other thread WEB basic server work too, but the 
variable errno has taken several values: 36240 and 30160. What means this codes?

this is my configuration today
* Define default values for unconfigured parameters. */
#define LWIP_NOASSERT 1 // To suppress some errors for now (no debug output)

/* These two control is reclaimer functions should be compiled
   in. Should always be turned on (1). */
#define MEM_RECLAIM             1
#define MEMP_RECLAIM            1


/* 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.
 */
#define SYS_LIGHTWEIGHT_PROT            1

/* ---------- 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. */
#define MEM_ALIGNMENT           4

/* 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. */
#define MEM_SIZE                3 * 1024


/* 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. */
#define MEMP_NUM_PBUF           6

/* Number of raw connection PCBs */
#define MEMP_NUM_RAW_PCB                1

#if (TFTP_USED == 1)
  /* ---------- UDP options ---------- */
  #define LWIP_UDP                1
  #define UDP_TTL                 255
  /* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
     per active UDP "connection". */

  #define MEMP_NUM_UDP_PCB        1
#else
  /* ---------- UDP options ---------- */
  #define LWIP_UDP                0
  #define UDP_TTL                 0
  /* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
     per active UDP "connection". */

  #define MEMP_NUM_UDP_PCB        0
#endif

/* MEMP_NUM_TCP_PCB: the number of simultaneously active TCP connections. */
#define MEMP_NUM_TCP_PCB        12
/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections. */
#define MEMP_NUM_TCP_PCB_LISTEN 10
/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments. */
#define MEMP_NUM_TCP_SEG        12
/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts. */
#define MEMP_NUM_SYS_TIMEOUT    10

/* 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. */
#define MEMP_NUM_NETBUF         12
/* MEMP_NUM_NETCONN: the number of struct netconns. */
#define MEMP_NUM_NETCONN        12


/* ---------- Pbuf options ---------- */
/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */

#define PBUF_POOL_SIZE          6

/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */

#define PBUF_POOL_BUFSIZE       500

/* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
   link level header. */
#define PBUF_LINK_HLEN          16

/* ---------- TCP options ---------- */
#define LWIP_TCP                1
#define TCP_TTL                 255
/* TCP receive window. */
#define TCP_WND                 1500
/* Controls if TCP should queue segments that arrive out of
   order. Define to 0 if your device is low on memory. */
#define TCP_QUEUE_OOSEQ         1

/* TCP Maximum segment size. */
#define TCP_MSS                 1500

/* TCP sender buffer space (bytes). */
#define TCP_SND_BUF             2150

/* TCP sender buffer space (pbufs). This must be at least = 2 *
   TCP_SND_BUF/TCP_MSS for things to work. */
#define TCP_SND_QUEUELEN        6 * TCP_SND_BUF/TCP_MSS



/* Maximum number of retransmissions of data segments. */
#define TCP_MAXRTX              12

/* Maximum number of retransmissions of SYN segments. */
#define TCP_SYNMAXRTX           4


/**
 * DEFAULT_RAW_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
 * NETCONN_RAW. The queue size value itself is platform-dependent, but is passed
 * to sys_mbox_new() when the recvmbox is created.
 */
#define DEFAULT_RAW_RECVMBOX_SIZE       6

/**
 * DEFAULT_UDP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
 * NETCONN_UDP. The queue size value itself is platform-dependent, but is passed
 * to sys_mbox_new() when the recvmbox is created.
 */
#define DEFAULT_UDP_RECVMBOX_SIZE       6

/**
 * DEFAULT_TCP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
 * NETCONN_TCP. The queue size value itself is platform-dependent, but is passed
 * to sys_mbox_new() when the recvmbox is created.
 */
#define DEFAULT_TCP_RECVMBOX_SIZE       6


/**
 * DEFAULT_ACCEPTMBOX_SIZE: The mailbox size for the incoming connections.
 * The queue size value itself is platform-dependent, but is passed to
 * sys_mbox_new() when the acceptmbox is created.
 */
#define DEFAULT_ACCEPTMBOX_SIZE         6

/* ---------- ARP options ---------- */
#define ARP_TABLE_SIZE 10
#define ARP_QUEUEING 0

/* ---------- 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. */
#define IP_FORWARD              0

/* If defined to 1, IP options are allowed (but not parsed). If
   defined to 0, all packets with IP options are dropped. */
#define IP_OPTIONS              1

/* ---------- ICMP options ---------- */
#define ICMP_TTL                255


/* ---------- DHCP options ---------- */
/* Define LWIP_DHCP to 1 if you want DHCP configuration of
   interfaces. DHCP is not implemented in lwIP 0.5.1, however, so
   turning this on does currently not work. */
#define LWIP_DHCP               0

/* 1 if you want to do an ARP check on the offered address
   (recommended). */
// #define DHCP_DOES_ARP_CHECK     1

/*
   ------------------------------------
   ---------- Thread options ----------
   ------------------------------------
*/
/**
 * TCPIP_THREAD_NAME: The name assigned to the main tcpip thread.
 */
#define TCPIP_THREAD_NAME              "TCP/IP"

/**
 * TCPIP_THREAD_STACKSIZE: The stack size used by the main tcpip thread.
 * The stack size value itself is platform-dependent, but is passed to
 * sys_thread_new() when the thread is created.
 */
#define TCPIP_THREAD_STACKSIZE          lwipINTERFACE_STACK_SIZE

/**
 * TCPIP_THREAD_PRIO: The priority assigned to the main tcpip thread.
 * The priority value itself is platform-dependent, but is passed to
 * sys_thread_new() when the thread is created.
 */
#define TCPIP_THREAD_PRIO               lwipINTERFACE_TASK_PRIORITY

/**
 * TCPIP_MBOX_SIZE: The mailbox size for the tcpip thread messages
 * The queue size value itself is platform-dependent, but is passed to
 * sys_mbox_new() when tcpip_init is called.
 */
#define TCPIP_MBOX_SIZE                 6

/**
 * SLIPIF_THREAD_NAME: The name assigned to the slipif_loop thread.
 */
#define SLIPIF_THREAD_NAME             "slipif"

/**
 * SLIP_THREAD_STACKSIZE: The stack size used by the slipif_loop thread.
 * The stack size value itself is platform-dependent, but is passed to
 * sys_thread_new() when the thread is created.
 */
#define SLIPIF_THREAD_STACKSIZE         configMINIMAL_STACK_SIZE

/**
 * SLIPIF_THREAD_PRIO: The priority assigned to the slipif_loop thread.
 * The priority value itself is platform-dependent, but is passed to
 * sys_thread_new() when the thread is created.
 */
#define SLIPIF_THREAD_PRIO              1

/**
 * PPP_THREAD_NAME: The name assigned to the pppMain thread.
 */
#define PPP_THREAD_NAME                "pppMain"

/**
 * PPP_THREAD_STACKSIZE: The stack size used by the pppMain thread.
 * The stack size value itself is platform-dependent, but is passed to
 * sys_thread_new() when the thread is created.
 */
#define PPP_THREAD_STACKSIZE            configMINIMAL_STACK_SIZE

/**
 * PPP_THREAD_PRIO: The priority assigned to the pppMain thread.
 * The priority value itself is platform-dependent, but is passed to
 * sys_thread_new() when the thread is created.
 */
#define PPP_THREAD_PRIO                 1

/**
 * DEFAULT_THREAD_NAME: The name assigned to any other lwIP thread.
 */
#define DEFAULT_THREAD_NAME            "lwIP"

/**
 * DEFAULT_THREAD_STACKSIZE: The stack size used by any other lwIP thread.
 * The stack size value itself is platform-dependent, but is passed to
 * sys_thread_new() when the thread is created.
 */
#define DEFAULT_THREAD_STACKSIZE        configMINIMAL_STACK_SIZE

/**
 * DEFAULT_THREAD_PRIO: The priority assigned to any other lwIP thread.
 * The priority value itself is platform-dependent, but is passed to
 * sys_thread_new() when the thread is created.
 */
#define DEFAULT_THREAD_PRIO             1


/* ---------- Statistics options ---------- */
#define LWIP_STATS 1

#define LWIP_STATS_DISPLAY 1

#if LWIP_STATS
#define LINK_STATS 1
#define IP_STATS   1
#define ICMP_STATS 1
#define UDP_STATS  1
#define TCP_STATS  1
#define MEM_STATS  1
#define MEMP_STATS 1
#define PBUF_STATS 1
#define SYS_STATS  1
#endif /* STATS */


/* ---------- Lwip Debug options ---------- */

#undef LWIP_DEBUG



#define DBG_TYPES_ON                    0xff

#define ETHARP_DEBUG                    DBG_OFF

#define NETIF_DEBUG                     DBG_OFF

#define PBUF_DEBUG                      DBG_ON

#define API_LIB_DEBUG                   DBG_OFF

#define API_MSG_DEBUG                   DBG_ON

#define SOCKETS_DEBUG                   DBG_OFF

#define ICMP_DEBUG                      DBG_OFF

#define INET_DEBUG                      DBG_OFF

#define IP_DEBUG                        DBG_OFF

#define IP_REASS_DEBUG                  DBG_OFF

#define RAW_DEBUG                       DBG_OFF

#define MEM_DEBUG                       DBG_OFF

#define MEMP_DEBUG                      DBG_OFF

#define SYS_DEBUG                       DBG_OFF

#define TCP_DEBUG                       DBG_ON

#define TCP_INPUT_DEBUG                 DBG_OFF

#define TCP_FR_DEBUG                    DBG_OFF

#define TCP_RTO_DEBUG                   DBG_OFF

#define TCP_CWND_DEBUG                  DBG_OFF

#define TCP_WND_DEBUG                   DBG_OFF

#define TCP_OUTPUT_DEBUG                DBG_OFF

#define TCP_RST_DEBUG                   DBG_OFF

#define TCP_QLEN_DEBUG                  DBG_OFF

#define UDP_DEBUG                       DBG_OFF

#define TCPIP_DEBUG                     DBG_OFF

#define DBG_MIN_LEVEL                   LWIP_DBG_LEVEL_SEVERE

thanks 
Oscar

On Fri, Sep 18, 2009 at 12:24 PM, Oscar F <address@hidden> wrote:

Thank you for all, maybe in  the future i have more problem but today you show me the way. Is my first time using lwip with a micro AVR32.

Thanks again
Oscar

On Fri, Sep 18, 2009 at 12:04 PM, Kieran Mansley <address@hidden> wrote:

On Fri, 2009-09-18 at 11:28 +0200, Oscar F wrote:
> Ok, sorry. The values are always the same
>
> MEMP_NUM_NETCONN        4
> errno = 0

You have two problems.  First, MEMP_NUM_NETCONN limits how many sockets
you can have, so in your example this needs to be at least 8, and more
if you want sockets to send/recv data on as well as just listening.  I
would suggest 16 as a minimum.

> but i saw maybe the problem
> /* MEMP_NUM_TCP_PCB: the number of simultaneously active TCP
> connections. */
> #define MEMP_NUM_TCP_PCB        2
> /* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
> */
> #define MEMP_NUM_TCP_PCB_LISTEN 1
> /* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
> */
> #define MEMP_NUM_TCP_SEG        9
> /* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts.
> */
> #define MEMP_NUM_SYS_TIMEOUT    6
>
>
> #define MEMP_NUM_TCP_PCB_LISTEN 1  can be possible? i´ll test

Yes, that will need to be at least as big as the number of listening
sockets, so 8 as a minimum.  MEMP_NUM_TCP_PCB will need to be bigger too
as you need one of these for each data socket (so again 8 would be
sensible minimum) and I would suggest that having just 9 TCP segments
for 8 connections is cutting things pretty small: 16 or 32 would be
better, but you may need more than that depending on how much data you
plan to send and receive.

You should have seen some warnings when running with the settings you
had if you had LWIP_DEBUG on - see lwip_sanity_check() function in
src/core/init.c  It's a good idea to do this when developing to show any
problems you have quickly and easily.

Thanks

Kieran



_______________________________________________
lwip-users mailing list
address@hidden
http://lists.nongnu.org/mailman/listinfo/lwip-users