Re: Macnetworkprog Digest, Vol 5, Issue 9

SCNetworkProtocolRef curProto = CFArrayGetValueAtIndex(protocols, protoCount);

From docs:

The index of the value to retrieve. If the index is outside the index space of theArray (0 to N-1 inclusive (where N is the count of theArray), the behavior is undefined.

On Jan 12, 2008, at 3:05 PM, email@hidden wrote:

Message: 1

Date: Fri, 11 Jan 2008 23:27:11 -0800

From: Allan Nathanson <email@hidden>

Subject: Re: IPSec not a "supported" protocol for PPP interfaces?

To: Nathan Duran <email@hidden>

Cc: email@hidden

Message-ID: <email@hidden">email@hidden>

Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes

Sorry for the delay in responding (it's been a busy week for me).

You've found a a bug! The IPSec configuration is actually associated

with the interface and would be accessible via the

SCNetworkInterface(Get|Set)ExtendedInterfaceConfiguration APIs. Can

you kindly file a bug report.

- Allan

On Jan 10, 2008, at 3:50 PM, Nathan Duran wrote:

On Dec 20, 2007, at 10:28 AM, Allan Nathanson wrote:

"IPSec" is not a protocol type.

OK, so why, when I call SCNetworkServiceCopyProtocols on an Apple

created L2TP service, is there one named "IPSec" in the array that

is returned?

CFArrayRef services = SCNetworkServiceCopyAll(prefs);

int serviceCount = CFArrayGetCount(services);

while ( serviceCount-- )

{

SCNetworkServiceRef curService = CFArrayGetValueAtIndex(services,

serviceCount);

CFStringRef serviceName = SCNetworkServiceGetName(curService);

if ( CFEqual(serviceName, CFSTR("VPN (L2TP)")) )

{

SCNetworkInterfaceRef firstLayer =

SCNetworkServiceGetInterface(curService);

CFArrayRef supportedProtocols =

SCNetworkInterfaceGetSupportedProtocolTypes(firstLayer);

CFShow(supportedProtocols);

CFArrayRef protocols = SCNetworkServiceCopyProtocols(curService);

int protoCount = CFArrayGetCount(protocols);

while ( protoCount-- )

{

SCNetworkProtocolRef curProto = CFArrayGetValueAtIndex(protocols,

protoCount);

CFStringRef protoName =

SCNetworkProtocolGetProtocolType(curProto);

CFDictionaryRef protoConfig =

SCNetworkProtocolGetConfiguration(curProto);

CFShow(protoName); //Second element will be "IPSec"

CFShow(protoConfig);

}

}

}