NewLC - Joining a multicast group - Comments

Re: Joining a multicast group

msa2 — Mon, 21 Jan 2008 13:49:31 +0100

Note, that in earlier messages the level of the join SetOpt was KSolInetIp, later there is KSolInetUdp.

Make sure you are using the correct level KSolInetIp(?).

Symbian doc is not very good in this, "insock.h" might give better idea.

Re: Joining a multicast group

rup_symbilc — Tue, 08 Jan 2008 10:20:28 +0100

Well now i can call RConnection.Start successfully using the IMPORT_C TInt Start(TConnPref &aPref); overload... but still enabling socking to add into muticast group is still an prob...

Any suggestions....?

Thanks.

Re: Joining a multicast group

rup_symbilc — Tue, 08 Jan 2008 07:44:24 +0100

Hi anurag,

Could you please post the detailed solution? I am also facing the same prob. Mine objective is to have the socket with muticast option set.
From the prev posts, it looks like before achieveing that
- I need to start a RConnection and use that to create an UDP socket.
But when i try to call RConnection::Start. I get err -1.....

- Also while trying to set teh muticast option I get error -5 same as you guys mentioned...

- Do i need to change the network configs too?

Thanks a lot

Re: Joining a multicast group

anuragbhalla — Wed, 01 Aug 2007 04:09:14 +0200

Hey

I managed to make this work with Muralidharvvk's help. I'll post the detailed solution soon.

Thanks for your reply

Re: Joining a multicast group

sysctl-forum — Mon, 30 Jul 2007 03:33:38 +0200

I've written the orginal post long time ago, so I can't recall what the problem might be, but I'll give it a try anyway. And sadly, stack dump does not tell me much.

(Assuming you have followed all instrucitons, of course).

Are you choosing the access point with DHCP and do you have DHCP server running on your network? I vaguely recall having problems using an access point with a static IP address.
Also, it may be relevant where it is running due to the way WinPcap works, I have had DHCP server on a separate computer (i.e. my workstation was not the DHCP server). It also makes easier to see with Ethereal if DCHP requests and replies are actually happening (Windows does not allow capturing packets sent on loopback address for some reason).

Re: Joining a multicast group

anuragbhalla — Wed, 25 Jul 2007 08:51:33 +0200

I am having a nightmarish time here configuring symbian tcp/ip stack instead of winsock for emulator. I am on s60_3rd 9.1. I did everything mentioned in this post. I am getting a prompt for ethernet IAP entry when I run httpclienexample. But, when I select the new interface .. boom..the app crashes. Following is the link to my stack dump.

http://cl1p.net/stackDump/

I would highly appreciate some help here.

Rgds

Re: Joining a multicast group

sysctl-forum — Thu, 08 Feb 2007 11:22:46 +0100

Alright then, I thought Symbian's document on Ethernet configuration was pretty clear. Turns out it wasn't.

Re: Joining a multicast group

Muralidharvvk — Thu, 08 Feb 2007 10:46:50 +0100

Yeah i agree but.. Thats the full details of the ced.cfg file are kept..
That's y copyed again and kept..

So, That the folks can directly use them..

Thats a lot for ur help regarding that sysctl.

Re: Joining a multicast group

sysctl-forum — Thu, 08 Feb 2007 08:22:45 +0100

Hello again, Muralidharvvk

Re: Joining a multicast group

Muralidharvvk — Thu, 08 Feb 2007 08:08:10 +0100

Hello folks,

By default the emultor will use Winsock which will use braindead windiws TCP/IP stack to get the multicast support for your symabian Emulator yor need to bypass the default WInsock asn point out to Symbian TCP/IP stack.

The steps are her followed in this link which will configure your emulator for symbian TCP/IP stack..

Step-by-step Solution
Following this, I was able to configure fully functional networking in one instance of the emulator (including unicast and multicast UDP!).

* Install WinPcap 3 or later (I have 3.1)
* Dump the comms database into a plain text file: run ceddump from eshell, the output file is .\Epoc32\winscw\c\cedout.cfg.
* Edit the file as described in Symbian's document on Ethernet configuration. Though, I've got a bit different settings for LanBearer and LanSerivce to get a working configuration, in particular:

Quote

##
[Network]
ADD_SECTION
# COMMDB_ID = 1
Name=Intranet
FIELD_COUNT=1
END_ADD

ADD_SECTION
# COMMDB_ID = 3
Name=Winsock
FIELD_COUNT=1
END_ADD

.......

[LANBearer]
ADD_SECTION
# COMMDB_ID = 1
Name=EKA1 Target Ethernet
IfName=ethint
LDDFilename=ethercard
LDDName=EtherCard
PDDFilename=EtherSmc
PDDName=EtherCard.Smc
PacketDriverName=EtherPkt.drv
LastSocketActivityTimeout=-1
LastSessionClosedTimeout=-1
LastSocketClosedTimeout=-1
Agent=nullagt.agt
FIELD_COUNT=11
END_ADD

ADD_SECTION
# COMMDB_ID = 2
Name=EKA2 Target Ethernet
IfName=ethint
LDDFilename=enet
LDDName=Ethernet
PDDFilename=ethernet
PDDName=Ethernet.Assabet
PacketDriverName=EtherPkt.drv
LastSocketActivityTimeout=-1
LastSessionClosedTimeout=-1
LastSocketClosedTimeout=-1
Agent=nullagt.agt
FIELD_COUNT=11
END_ADD

ADD_SECTION
# COMMDB_ID = 3
Name=EKA1 Emulator Ethernet
IfName=ethint
LDDFilename=ethercard
LDDName=Ethercard
PDDFilename=etherwins
PDDName=Ethercard.wins
PacketDriverName=EtherPkt.drv
LastSocketActivityTimeout=-1
LastSessionClosedTimeout=-1
LastSocketClosedTimeout=-1
Agent=nullagt.agt
FIELD_COUNT=11
END_ADD

ADD_SECTION
# COMMDB_ID = 4
Name=EKA2 Emulator Ethernet
IfName=ethint
LDDFilename=enet
LDDName==Ethernet
PDDFilename=ethernet
PDDName=Ethernet.Wins
PacketDriverName=EtherPkt.drv
LastSocketActivityTimeout=-1
LastSessionClosedTimeout=-1
LastSocketClosedTimeout=-1
Agent=nullagt.agt
FIELD_COUNT=11
END_ADD

ADD_SECTION
# COMMDB_ID = 5
Name=Winsock
IfName=wsocki
LDDName=foo
PDDName=foo
LastSocketActivityTimeout=-1
LastSessionClosedTimeout=-1
LastSocketClosedTimeout=-1
Agent=wsocka.agt
FIELD_COUNT=8
END_ADD

........

[LANService]
ADD_SECTION
# COMMDB_ID = 1
Name=Ethernet
IfNetworks=ip
IpNetMask=0.0.0.0
IpGateway=0.0.0.0
IpAddrFromServer=TRUE
IpAddr=0.0.0.0
IpDNSAddrFromServer=TRUE
IpNameServer1=0.0.0.0
IpNameServer2=0.0.0.0
IpAddrLeaseValidFrom=\xA342\x01DF\x0001\x0000@\x0000\xDB5A\x88A5\x062C\x00E1\x000C\x3000 \x0000\x0800\x0000\x0000\x0000\x01EF\xC0A8\xCCCC\xCCCC\xCCCC\xCCCC\xCCCC\xCCCC\xCCCC\xCCCC\xCCCC\xCCCC\x5180\x0001
ConfigDaemonManagerName=NetCfgExtnDhcp
ConfigDaemonName=DhcpServ
FIELD_COUNT=12
END_ADD
ADD_SECTION
# COMMDB_ID = 2
Name=Ethernet Static IP
IfNetworks=ip
IpNetMask=255.255.255.0
IpGateway=192.168.1.1
IpAddrFromServer=FALSE
IpAddr=192.168.1.250
IpDNSAddrFromServer=FALSE
IpNameServer1=192.168.1.116
IpNameServer2=192.168.1.116
ConfigDaemonManagerName=NetCfgExtnDhcp
ConfigDaemonName=!DhcpServ
FIELD_COUNT=11
END_ADD

ADD_SECTION
# COMMDB_ID = 3
Name=Ethernet Bad Daemon
IfNetworks=ip
IpNetMask=255.255.255.0
IpGateway=10.32.194.254
IpAddrFromServer=FALSE
IpAddr=10.32.194.251
IpDNSAddrFromServer=TRUE
IpNameServer1=194.72.6.51
IpNameServer2=194.72.6.52
ConfigDaemonManagerName=NonExistingServ
ConfigDaemonName=NonExistingServ
FIELD_COUNT=11
END_ADD

ADD_SECTION
# COMMDB_ID = 4
Name=Ethernet No Daemon
IfNetworks=ip
IpNetMask=255.255.255.0
IpGateway=192.168.1.1
IpAddrFromServer=FALSE
IpAddr=192.168.1.250
IpDNSAddrFromServer=FALSE
IpNameServer1=192.168.1.116
IpNameServer2=192.168.1.116
FIELD_COUNT=9
END_ADD

############################################################
## IAP
##
[IAP]
ADD_SECTION
# COMMDB_ID = 1
Name=Ethernet
IAPServiceType=LANService
IAPService=1
IAPBearerType=LANBearer
IAPBearer=4
IAPNetwork=1
IAPNetworkWeighting=0
Location=2
FIELD_COUNT=8
END_ADD
ADD_SECTION
# COMMDB_ID = 3
Name=Winsock
IAPServiceType=OutgoingGPRS
IAPService=2
IAPBearerType=LANBearer
IAPBearer=2
IAPNetwork=3
IAPNetworkWeighting=0
Location=4
FIELD_COUNT=8
END_ADD

* Additionally, make sure there are no dodgy entries like proxies that you don't need (I wasted several hours before figuring out that all HTTP connections attemt to connect via eprx00.nokia.com, God knows how it got there), and finally kill all Winsock entries.
* Rename cedout.cfg into ced.cfg
* Compile the database back (run ced from eshell). A ced.log file should appear in the same directory and the last line should say "SUCCESS".

Now comes the manipulation with ESOCK config files, without it nothihg works, as new commdb LanBearer entry points to ethernet driver, but *.esk files still have Winsock-related entries.

* Locate 2 ip.tcpip.esk files in your SDK installation: one in (1) \Epoc32\winscw\c\private\101f7989\esock (the one that refers to winsock.prt in its every entry), another in (2) \Epoc32\Data\z\private\101f7989\esock (the proper one, references tcpip6.prt).
* Replace: (1) with (2).
* Edit copied ip.tcpip.esk file. Under [interfaces] section, put another line "ethint= ethint.nif" (according to IfName in LanBearer table section of our Ethernet entry). Note: space after "=" is important!
* Put configuration info for ehternet driver into \Epoc32\Data\epoc.ini:

Quote

ETHER_NIF=\Device\NPF_{90230DF5-B692-411E-9868-038105B45530}
ETHER_MAC=026761EDF0CB
ETHER_SPEED=100Mbps

Normally, configchange.pl from Epoc32\tools does it for you, but since netcards.exe in this SDK is terribly broken, you could do it manually, by running net config rdr (that's what uiqenv.pl script in UIQ3 does). It will give both MAC and NIF for all cards. Replace first "00" in MAC to "02".

Re: Joining a multicast group

Sage — Wed, 09 Aug 2006 13:07:31 +0200

I got Nokia E70 phone where I tested my application. Still the same error KErrNotSupported (-5) when trying to set KSoIp6JoinGroup option.

Edit: Network Services capability has been set.

Re: Joining a multicast group

Sage — Tue, 27 Jun 2006 09:57:35 +0200

Quote from: msa2

Quote

Network Services?

Your application needs the "Network Services" capability to commucate out of the box in new OS releases with capability system active (mulicast join itself does not need that -- I remembered wrong).

In earlier message I asked about RSocket replacement libraries on emulator. You are surely not using any of those, like winsock.prt? Multicast join works only with the real Symbian TCP/IP stack.

Well, I haven't "modified" sdk. All the libraries that I'm using came with the SDK. I have linked insock.lib and esock.lib librarys and included <es_sock.h> and <in_sock.h>.

So how can I get real symbian TCP/IP stack?

Re: Joining a multicast group

msa2 — Mon, 26 Jun 2006 22:27:53 +0200

Quote

Network Services?

Re: Joining a multicast group

Sage — Mon, 26 Jun 2006 07:12:00 +0200

Quote from: msa2

Crashes? Or do you just get error return, and when your code does the leave (as you have requested with LeaveIfError), it does not trap it correct?

Sorry, Leaves with code -1 or -5.

Quote

Anyway, if RConnection::Start "crashes", then your problem has nothing to do with multicast.

That i figured out myself but what am I doing wrong with the RConnect then?

Quote

Hmm.. did 9.1 have the capabilities already? Multicast join may require "Network Services" capabilitiy...

Network Services?

Re: Joining a multicast group

msa2 — Fri, 23 Jun 2006 19:26:39 +0200

Crashes? Or do you just get error return, and when your code does the leave (as you have requested with LeaveIfError), it does not trap it correct?

Anyway, if RConnection::Start "crashes", then your problem has nothing to do with multicast.

Hmm.. did 9.1 have the capabilities already? Multicast join may require "Network Services" capabilitiy...

Joining a multicast group

racerx — Wed, 25 Jan 2006 15:42:10 +0100