Date: Tue, 21 Jul 2020 17:48:25 -0400 From: Aaron <notjanedeere@gmail.com> To: Adrian Chadd <adrian@freebsd.org>, freebsd-wireless <freebsd-wireless@freebsd.org> Subject: Re: regdomain.xml Message-ID: <31f9101a-1892-ea26-a5ed-460023e1c0f6@gmail.com> In-Reply-To: <CAJ-Vmo=C1x3q-5_mrKmOjde52uPEDo2NhnSbqvL1cgxCgsTicQ@mail.gmail.com> References: <CAJ-VmomofP8%2B5r1kWTvHXvgd-imERKLOMf_BiQaTY8M8bQCeCw@mail.gmail.com> <f429089c012869afa7c875fa24e941f3@udns.ultimatedns.net> <CAJ-VmomVTYQg0BX3jgPBBGhUyiSd0upT1JcE4XLbWMgwiPD7jg@mail.gmail.com> <CACNAnaEZwjpZMJ3JhoOn=Qb3H_9FL08T4VHOeGLS=FzYRSDqLQ@mail.gmail.com> <c3f15731-2dc0-7d87-1c41-d873bd99369b@gmail.com> <CAJ-Vmonigq35XpxAmdJ7JFH32QRu2FpvooD20BiRoG4ZmmP_cA@mail.gmail.com> <7a0f5e2c-a9e2-a476-6d99-f4591211bbe5@gmail.com> <CAJ-Vmo=C1x3q-5_mrKmOjde52uPEDo2NhnSbqvL1cgxCgsTicQ@mail.gmail.com>
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On 7/21/2020 5:41 PM, Adrian Chadd wrote: > (cc'ing the list again, hehe :-) > On Tue, 21 Jul 2020 at 14:35, Aaron <notjanedeere@gmail.com > <mailto:notjanedeere@gmail.com>> wrote: > > On 7/21/2020 5:33 PM, Adrian Chadd wrote: > >> Ok. Please do dig into it. >> >> Do try to treat the regdomain code as a black box - input is >> "what regulatory domain do we want" and the output is "a list of >> channels and properties of those channels that we currently >> program into net80211." Hopefully we don't have to change the >> net80211 channel API! > This is the sort of information I'm looking for! So far all I'm > looking at is an XML file. Where would I find the "regdomain code"? > > > (We really should write a page in the wiki about regdomain stuff.) > > So, here's my suggestion: > > * get freebsd with a supported wifi card > * look at what happens when you type "ifconfig wlan0 create wlandev > XXX"; and then "ifconfig wlan0 regdomain FCC3" > * .. see what it does with the channel programming in > src/sbin/ifconfig/ and src/lib/lib80211/ > * Also 'ifconfig wlan0 list sta" and "ifconfig -v wlan0 list sta" > > in src/sbin/ifconfig/ifieee80211.c look at > setdefregdomain(), setregdomain_cb(), print_channels() and list_channels() > > * print_channels() queries net80211 for the list of channels > * list_channels() calls it :-) > * setregdomain_cb() sucks in the lib80211 regdomain code, does a bunch > of hijinx, and then calls into net80211 using the > IEEE80211_IOC_REGDOMAIN ioctl to set the sku/country and the channel list. > > > > -adrian So much for limiting myself to XML parsing. I'll grab some source files and take a look, I can code but might be too removed from what's being done here to get my ahead around it. Thanks all.
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