Date: Thu, 17 Feb 2011 10:30:11 +0100 From: Monthadar Al Jaberi <monthadar@gmail.com> To: Rick van der Zwet <info@rickvanderzwet.nl>, jamie@freebsd.org Cc: freebsd-jail@freebsd.org Subject: Re: [jail][vnet] wlandebug inside jail, operation not permitted Message-ID: <AANLkTikvxxEJM_dYCCyBQ_WWQvVKbMEWMx34nWA%2B9ny=@mail.gmail.com> In-Reply-To: <AANLkTim6ROQk3V9Q3cg5KQekpKz1V8RA58KAU78q7PvG@mail.gmail.com> References: <AANLkTim5Rg3D3Zwo42VEkcNcjJcDQNz54jOBF%2Bv%2BKivN@mail.gmail.com> <AANLkTim6ROQk3V9Q3cg5KQekpKz1V8RA58KAU78q7PvG@mail.gmail.com>
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Thank you for clarifications. I am using jails like a virtual host, each having its own network stack and a wireless card, I am trying out to test 802.11s mesh code, and sometimes when I find that some scenario is not working I want to turn on debug information to see what is happening, it is hard to guess before hand =) So is it easy to change so that I can give a jail this permission? I know I am not using it like it was intended, for me I create sometimes 64 jails with each network stack and a virtual wireless driver and test the code, so it is hard to know which node I want to debug beforehand. thank you, On Wed, Feb 16, 2011 at 10:13 PM, Rick van der Zwet <info@rickvanderzwet.nl> wrote: > On 16 February 2011 17:34, Monthadar Al Jaberi <monthadar@gmail.com> wrote: >> I have created a jail with "jail -c jid=1 vnet persist", then moved a >> wlan to it "ifconfig wlan0 vnet 1" but when I try to run: >> "jexec 1 wlandebug -i wlan0 state" I get : >> >> wlandebug: sysctl-set(net.wlan.0.debug): Operation not permitted >> net.wlan.0.debug: 0x22000 => >> >> I can run wlandebug before moving wlan to a jail, but why cant I do it >> inside the jail? I am running everything as root. > > You cannot control your device drivers from a jail. I am even > wondering why you try to do this commands inside a jail in the first > place. > > Please have a look at the handbook page: > http://www.freebsd.org/doc/handbook/jails.html to see the intended > usage of jails and what is possible and not. > > Br. /Rick > -- > http://rickvanderzwet.nl > -- //Monthadar Al Jaberi
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