Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
Re: How to detect Wifi device?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: How to detect Wifi device?



Hi,
  I'm also in the same boat of trying to detect any wifi connect type (USB
dongle, airport card, another wifi card), I was curious if there were any
answers to your questions.

Thanks
Mark.

> Message: 1
> Date: Wed, 20 Jul 2005 22:53:46 -0400
> From: Jay Koutavas <email@hidden>
> Subject: Re: How to detect Wifi device?
> To: email@hidden
> Message-ID: <p0623092fbf04be5e468b@[192.168.1.34]>
> Content-Type: text/plain; charset="us-ascii"
>
> scutil is cool, I played around with it tonight.  On a machine that
> has an actual Airport card, it's pretty obvious what keys to use to
> get all sorts of useful info.
>
> Alas, if you'll notice in my previous emails, I've been speaking
> about "wifi detection", not "airport detection". The machine I am
> doing pathological testing  on is an old Lombard powerbook with a
> USB-based wifi dongle (D-Link DWL-122) running Mac OS X 10.3.4, and
> when I run scutil on it, I see things like this:
>
>>  open
>>  list
>  subKey [0] = DirectoryService:PID
>  subKey [1] = Plugin:IPConfiguration
>  subKey [2] = Setup:
>  subKey [3] = Setup:/
>  subKey [4] = Setup:/Network/Global/IPv4
>  subKey [5] = Setup:/Network/HostNames
>  subKey [6] = Setup:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F
>  subKey [7] =
> Setup:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F/Ethernet
>  subKey [8] = Setup:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F/IPv4
>  subKey [9] = Setup:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F/IPv6
>  subKey [10] =
> Setup:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F/Interface
>  subKey [11] =
> Setup:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F/Proxies
>  subKey [12] = Setup:/System
>  subKey [13] = State:/IOKit/PowerManagement/CurrentSettings
>  subKey [14] = State:/IOKit/PowerSources/InternalBattery-0
>  subKey [15] = State:/IOKit/PowerSources/InternalBattery-1
>  subKey [16] = State:/Network/Global/DNS
>  subKey [17] = State:/Network/Global/IPv4
>  subKey [18] = State:/Network/Global/Proxies
>  subKey [19] = State:/Network/Interface
>  subKey [20] = State:/Network/Interface/en1/IPv4
>  subKey [21] = State:/Network/Interface/en1/IPv6
>  subKey [22] = State:/Network/Interface/en1/Link
>  subKey [23] = State:/Network/Interface/lo0/IPv4
>  subKey [24] = State:/Network/Interface/lo0/IPv6
>  subKey [25] =
> State:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F/DHCP
>  subKey [26] = State:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F/DNS
>  subKey [27] =
> State:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F/IPv4
>  subKey [28] = State:/Users/ConsoleUser
>  subKey [29] =
> com.apple.DirectoryService.NotifyTypeStandard:DirectoryNodeAdded
>  subKey [30] =
> com.apple.DirectoryService.NotifyTypeStandard:DirectoryNodeDeleted
>  subKey [31] =
> com.apple.DirectoryService.NotifyTypeStandard:SearchPolicyChanged
>>  get Setup:/Network/Global/IPv4
>>  d.show
> <dictionary> {
>  ServiceOrder : <array> {
>    0 : 6830952F-0E1E-11D8-B1E3-0050E4307A2F
>    1 : 0
>    2 : F3FF3F0C-033C-11D9-8A73-0050E4307A2F
>  }
>  PPPOverridePrimary : 0
> }
>>
>
> The ServiceOrder info is way "geeky-er" than on my nice
> ethernet-based Tiger G5 dualie's output:
>
>>  get State:/Network/Global/IPv4
>>  d.show
> <dictionary> {
>  PrimaryService : 0
>  Router : 192.168.1.1
>  PrimaryInterface : en0
> }
>>
>
> And is fundamentally different. Why's that?
>
> And the Setup:/Network/Service/F3FF3F0C-033C-11D9-8A73-0050E4307A2F/
> name is way geeky-er. Why the geeky name there? and how will I know
> to match on it? I surely can't just grep-around for a string like
> "airport" in such a configuration. How will I know that
> "F3FF3F0C-033C-11D9-8A73-0050E4307A2F" means "it's a wifi device"?
>
> The piece of code I am crafting will provide answers to these sorts
> of questions, on all kinds of wifi/ethernet environments:
>
> 1. is wifi present?
> 2. is wifi the primary service?
> 3. is ethernet present?
> 4. is ethernet *and* wifi in use currently?
> 5. are there more than one wifi network available nearby?
>
> Will I be able to get all this info out of SCF queries?
>
> /jay
>
> At 12:10 PM -0700 7/20/05, Quinn "The Eskimo!" wrote:
>> At 21:40 -0400 19/7/05, Jay Koutavas wrote:
>>> What is/are the recommended System Configuration query/queries to
>>> make to determine if the machine has an active wifi internet
>>> connection?
>>
>> I'd look in the "Setup" domain for an service whose "Interface"
>> dictionary (the key pattern would be something like
>> "Setup:/Network/Service/<serviceID>/Interface") contains a "Type" key
>> of value "Ethernet" and a "Hardware" key of value "AirPort".  That
>> will tell you whether AirPort is configured.  You can then look for a
>> matching entry in the State domain to see whether IPv4 (the key would
>> be "State:/Network/Interface/<ifName>/IPv4") is set up and has a
>> reasonable IP address.
>>
>> As Duane noted, this becomes a lot clearer after you do a little
>> poking around with "scutil".
>>
>> S+E
>> --
>> Quinn "The Eskimo!"                    <http://www.apple.com/developer/>
>> Apple Developer Technical Support * Networking, Communications, Hardware
>
> --
> '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
>  Jay Koutavas                         mailto:email@hidden
>  Heynow Software                      http://www.heynow.com
>  Windham, New Hampshire, USA
> '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL:
> http://lists.apple.com/mailman/private/macnetworkprog/attachments/20050720/a3d
> 61c5b/attachment.html
>
> ------------------------------

 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Macnetworkprog mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2011 Apple Inc. All rights reserved.