NetworkManager and "illegal" SSID chars = crash?

Richi Plana myfedora at richip.dhs.org
Wed Sep 5 17:15:58 UTC 2007


On Wed, 2007-09-05 at 12:59 -0400, Dan Williams wrote:
> Right; it is an NM issue.  If NM crashes or misbehaves with a weird
> SSID, we need to fix it.
> 
> As specified in the 802.11 standard, the ESSID is a 32-byte byte array,
> there are no restrictions made as to what content that 32-bytes may
> contain.  It is up to the program to attempt to coerce that value into
> something to present to the user.

Since no semantics has been proposed, then it stands to reason that one
can just assume 1 byte = 1 character and a straight "byte value =
Unicode value" conversion should be adopted, right? (No codepage
conversions).

Come to think of it, if they're just a generic 32-byte byte array, why
even convert them to strings? They only make sense if they happen to
contain alphanumeric and some symbolic characters (which isn't even a
convention or restriction). Alright, maybe it's useful for displaying to
humans when they just happen to be alphanumeric. Forget I asked.
--

Richi Plana




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