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Today's Topics:
1. How much connects can I create? Now, I only can creat 16
connects . (geckook Xu)
2. Re: tcp_receive bugfix - incoming segment is, larger than the
old segment (Oleg Tychev)
3. lwip udp server (Andrea Visinoni)
4. Re: lwip udp server (?a?lar AKY?Z)
5. Hi everyone, need help on setting web server for Spartan 3E
Starter Kit (Jian Rong @ Makoto)
6. Ethernet Driver (Robert Morse)
7. Re: tcp_receive bugfix - incoming segment is larger than the
old segment. (Jonathan Larmour)
----------------------------------------------------------------------
Message: 1
Date: Fri, 9 Feb 2007 16:11:33 +0800
From: "geckook Xu" <address@hidden>
Subject: [lwip-users] How much connects can I create? Now, I only can
creat 16 connects .
To: address@hidden
Message-ID:
<address@hidden>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
When I create the 17th connect, It is lag.
I use the socket.c API.
What can I do in the next step?
Arm7
I did not found the mem err and the program block in the lwip_read()
or lwip_write method.
------------------------------
Message: 2
Date: Fri, 09 Feb 2007 10:56:25 +0100
From: Oleg Tychev <address@hidden>
Subject: [lwip-users] Re: tcp_receive bugfix - incoming segment is,
larger than the old segment
To: address@hidden
Message-ID: <address@hidden>
Content-Type: text/plain; charset="iso-8859-1"
Hello All,
after review my own fix, I find out, that it was wrong:)
There is new one.
Oleg Tychev
Here is patch against version lwip-1.2.0
--
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mbH,
Sitz Bruehl, Deutschland - Registergericht Mannheim HRB 05 88 S -
Geschaeftsfuehrer: Dipl.-Betriebswirt Steffen Philipp, Dipl.-Kfm. Peter
Swiczinsky
-------------- next part --------------
*** lwip-1.2.0/src/core/tcp_in.c Fri Aug 18 13:18:42 2006
--- lwip-1.2.0/src/core/tcp_in_fix.c Fri Feb 9 10:41:34 2007
***************
*** 1052,1073 ****
--- 1052,1082 ----
/* The incoming segment is larger than the old
segment. We replace the old segment with the new
one. */
cseg = tcp_seg_copy(&inseg);
if (cseg != NULL) {
cseg->next = next->next;
if (prev != NULL) {
prev->next = cseg;
} else {
pcb->ooseq = cseg;
}
+ tcp_seg_free(next);
+ if (cseg->next != NULL) {
+ next = cseg->next;
+ if (TCP_SEQ_GT(seqno + cseg.len, next->tcphdr->seqno)) {
+ /* We need to trim the incoming segment. */
+ cseg.len = next->tcphdr->seqno - seqno;
+ pbuf_realloc(cseg.p, cseg.len);
+ }
+ }
}
break;
} else {
/* Either the lenghts are the same or the incoming
segment was smaller than the old one; in either
case, we ditch the incoming segment. */
break;
}
} else {
------------------------------
Message: 3
Date: Fri, 9 Feb 2007 13:41:07 +0100
From: "Andrea Visinoni" <address@hidden>
Subject: [lwip-users] lwip udp server
To: <address@hidden>
Message-ID: <address@hidden>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi all,
i'm trying to develop an udp server over an AT91SAM7X-EK board, and i've
some problems.
First of all, tcp is working correctly, and if i ping my board it replys,
i've already done a tcp server and it works.
Is there an example about udp server or udp usage?
Thanks
Andrea
------------------------------
Message: 4
Date: Fri, 09 Feb 2007 15:01:32 +0200
From: ?a?lar AKY?Z <address@hidden>
Subject: Re: [lwip-users] lwip udp server
To: Mailing list for lwIP users <address@hidden>
Message-ID: <address@hidden>
Content-Type: text/plain; charset=UTF-8; format=flowed
Andrea Visinoni wrote:
> Hi all,
Hi,
> i'm trying to develop an udp server over an AT91SAM7X-EK board, and
> i've some problems.
> First of all, tcp is working correctly, and if i ping my board it
> replys, i've already done a tcp server and it works.
> Is there an example about udp server or udp usage?
> Thanks
> Andrea
Here is my working UDP server on SAM7X(on a FREERTOS port). After
bringing up a mac interface you can init connection. In this example,
only connections from a predefined IP address is accepted. This is not
neccessary.
Regards
Caglar AKYUZ
void init()
{
/* create a new UDP connection */
listen_pc = netconn_new( NETCONN_UDP );
/* set up the IP address of the remote host. This is one is
192.168.2.7.
* this is not that much neccessary.
*/
addr.addr = htonl(( 192 << 24 ) | ( 168 << 16 ) | ( 100 << 8 ) | (
7 << 0 ));
/* connect the connection to the remote host */
netconn_connect(listen_pc, &addr, 15000 );
/* Make datagram_recved callback function and bind to the local port
* When there is a packet recved from the network our datagram_recved
* function will be called.
*/
udp_recv( listen_pc->pcb.udp, datagram_recved, NULL );
netconn_bind( listen_pc , NULL , 33333 );
/* create a new netbuf. This buffer is for referencing ethernet data. */
buf = netbuf_new();
/* Reference the request data into net_buf */
netbuf_ref( buf , (int *)some_data_pointer ,
some_data_length_in_bytes );
/* Then send the datagram */
netconn_send( listen_pc , buf );
}
void datagram_recved(void *arg, struct udp_pcb *pcb, struct pbuf *p,
struct ip_addr *addr, u16_t port)
{
/* Supress compiler warnings */
( void ) arg;
( void ) addr;
( void ) port;
/* Do something with the pbuf */
/* Don't forget to free buffer */
pbuf_free(p);
}
------------------------------
Message: 5
Date: Fri, 9 Feb 2007 05:08:01 -0800 (PST)
From: "Jian Rong @ Makoto" <address@hidden>
Subject: [lwip-users] Hi everyone, need help on setting web server for
Spartan 3E Starter Kit
To: address@hidden
Message-ID: <address@hidden>
Content-Type: text/plain; charset="iso-8859-1"
Dear everyone,
I am currently using the Xilinx Spartan 3E Starter Kit ( equipped with Spartan 3E500
processor) to set up a web server based on the Application Design Example ( that uses Spartan
3E1600). I have actually changed the System UCF(User Constraints File) and also the System
Hardware (.MHS file) according to Spartan 3E Starter Kit user guide, I could run the example
so far until I could enter the IP address, Subnet Mask and Gateway. I also change the PC IP
address so that it is in the same subnet as the Web Server ( the Spartan Kit). Then, the
settting up of Server Netif and also the Sockets seems to be successful, and it shows the
message " HTTP server receiving incoming connection on port 80". But when I tried to
ping the webserver IP address, or tried to surf at the Internet browser by typing "
http://xx.xx.xx.xx. (IP address of webserver), it fail to respond. I found out that the cable
connecting the PC and webserver (Starter Kit) has the LED at the RJ45 unlit---
which means my desktop could not detect a connection. I have downloaded the
Files (index.html, 404.html, etc) into the StarterKit's file system (DDR
memory).
I have tried to run the memory test (C application generated by EDK) and
peripheral test (C application), and for the memory test , the result output from the
Hyperterminal seems to be ok for 32-bit, 16-bit and 8-bit. But for the peripheral test:
It tested "PASSED" as a result for :
The DIP switch, LED, RS232, and also it can run Polled mode Ethernet
(non-interrupt), but when it comes to Ethernet Interrupt-Driven and also timer (which
also has interrrupt), it jammed at the processing..... and it neither do show the
"FAILURE" message.
I dont know what is the problem.
And also, when I tried to connect to a Laptop the Ethernet cable did lights up (the LED at the
RJ45) and the Laptop can detect a connection ( Showing " Local Area Connection connected at
100Mps") even when I have not dowloaded the software files into the board. But when I connect
to the Desktop that I have been using all this while, it didn't detect a connection (Still shows
" Local Area Network cable unplugged" ).
I am not sure , could it be the driver of my Network Card? Does it means that
my network card could not support the connection?
Please enlighten me . Thank you very much.
Yours sincerely,
Jian Rong @ Makoto
http://www.amtfpureland.com.cn/
http://buddha.goodweb.cn/music/music1.htm
---------------------------------
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Check out "Tonight's Picks" on Yahoo! TV.
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------------------------------
Message: 6
Date: Fri, 9 Feb 2007 08:17:32 -0500
From: Robert Morse <address@hidden>
Subject: [lwip-users] Ethernet Driver
To: Mailing list for lwIP users <address@hidden>
Message-ID: <address@hidden>
Content-Type: text/plain; charset=US-ASCII; format=flowed
Hi,
Could anyone tell me if they have done a driver
for a Am79C760 (lance) ethernet driver? I am looking
at porting the LwIP to a Turbo 80186 processor with
an embedded Am79C760 ethernet chip. Before I embark
on such a project, I just thought I would ask if
anyone had already done it.
Robert Morse
------------------------------
Message: 7
Date: Fri, 09 Feb 2007 16:42:06 +0000
From: Jonathan Larmour <address@hidden>
Subject: Re: [lwip-users] tcp_receive bugfix - incoming segment is
larger than the old segment.
To: address@hidden
Cc: Mailing list for lwIP users <address@hidden>
Message-ID: <address@hidden>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
It looks like this patch hasn't been picked up. Can you submit it to
https://savannah.nongnu.org/patch/?group=lwip please to be sure a developer
(I'm not one) can act on it? Thanks.
Jifl
Oleg Tychev wrote:
> Hello, All!
>
> I see on this code fragment in function tcp_receive
> if (inseg.len > next->len) {
> /* The incoming segment is larger than the old
> segment. We replace the old segment with the new
> one. */
> cseg = tcp_seg_copy(&inseg);
> if (cseg != NULL) {
> cseg->next = next->next;
> if (prev != NULL) {
> prev->next = cseg;
> } else {
> pcb->ooseq = cseg;
> }
> }
> break;
> } else {
> and think it should have free function for "next"
>
> if (inseg.len > next->len) {
> /* The incoming segment is larger than the old
> segment. We replace the old segment with the new
> one. */
> cseg = tcp_seg_copy(&inseg);
> if (cseg != NULL) {
> cseg->next = next->next;
> tcp_seg_free(next);
> if (prev != NULL) {
> prev->next = cseg;
> } else {
> pcb->ooseq = cseg;
> }
> }
> break;
> } else {
>
> Poka poka
> -------------
> Oleg Tychev
>
>
>
>
> _______________________________________________
> lwip-users mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/lwip-users
>
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