Re: Suspending access to opened/active /dev/nodes during application runtime

2014-03-11 Thread David Herrmann
Hi On Fri, Mar 7, 2014 at 7:45 PM, Lukasz Pawelczyk wrote: > Problem: > Has anyone thought about a mechanism to limit/remove an access to a > device during an application runtime? Meaning we have an application > that has an open file descriptor to some /dev/node and depending on > *something*

Re: Suspending access to opened/active /dev/nodes during application runtime

2014-03-11 Thread David Herrmann
Hi On Fri, Mar 7, 2014 at 7:45 PM, Lukasz Pawelczyk hav...@gmail.com wrote: Problem: Has anyone thought about a mechanism to limit/remove an access to a device during an application runtime? Meaning we have an application that has an open file descriptor to some /dev/node and depending on

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lennart Poettering
On Fri, 07.03.14 21:51, Lukasz Pawelczyk (hav...@gmail.com) wrote: > >> Problem: > >> Has anyone thought about a mechanism to limit/remove an access to a > >> device during an application runtime? Meaning we have an > >> application that has an open file descriptor to some /dev/node and > >>

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Greg KH
On Fri, Mar 07, 2014 at 09:45:28PM +0100, Lukasz Pawelczyk wrote: > > On 7 Mar 2014, at 20:09, Greg KH wrote: > > > On Fri, Mar 07, 2014 at 07:46:44PM +0100, Lukasz Pawelczyk wrote: > >> Problem: > >> Has anyone thought about a mechanism to limit/remove an access to a > >> device during an

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lukasz Pawelczyk
On 7 Mar 2014, at 20:24, Lennart Poettering wrote: > On Fri, 07.03.14 19:45, Lukasz Pawelczyk (hav...@gmail.com) wrote: > >> Problem: >> Has anyone thought about a mechanism to limit/remove an access to a >> device during an application runtime? Meaning we have an application >> that has an

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lukasz Pawelczyk
On 7 Mar 2014, at 20:09, Greg KH wrote: > On Fri, Mar 07, 2014 at 07:46:44PM +0100, Lukasz Pawelczyk wrote: >> Problem: >> Has anyone thought about a mechanism to limit/remove an access to a >> device during an application runtime? Meaning we have an application >> that has an open file

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lennart Poettering
On Fri, 07.03.14 19:45, Lukasz Pawelczyk (hav...@gmail.com) wrote: > Problem: > Has anyone thought about a mechanism to limit/remove an access to a > device during an application runtime? Meaning we have an application > that has an open file descriptor to some /dev/node and depending on >

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Greg KH
On Fri, Mar 07, 2014 at 07:46:44PM +0100, Lukasz Pawelczyk wrote: > Problem: > Has anyone thought about a mechanism to limit/remove an access to a > device during an application runtime? Meaning we have an application > that has an open file descriptor to some /dev/node and depending on >

Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lukasz Pawelczyk
Problem: Has anyone thought about a mechanism to limit/remove an access to a device during an application runtime? Meaning we have an application that has an open file descriptor to some /dev/node and depending on *something* it gains or looses the access to it gracefully (with or without a

Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lukasz Pawelczyk
Problem: Has anyone thought about a mechanism to limit/remove an access to a device during an application runtime? Meaning we have an application that has an open file descriptor to some /dev/node and depending on *something* it gains or looses the access to it gracefully (with or without a

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Greg KH
On Fri, Mar 07, 2014 at 07:46:44PM +0100, Lukasz Pawelczyk wrote: Problem: Has anyone thought about a mechanism to limit/remove an access to a device during an application runtime? Meaning we have an application that has an open file descriptor to some /dev/node and depending on *something*

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lennart Poettering
On Fri, 07.03.14 19:45, Lukasz Pawelczyk (hav...@gmail.com) wrote: Problem: Has anyone thought about a mechanism to limit/remove an access to a device during an application runtime? Meaning we have an application that has an open file descriptor to some /dev/node and depending on *something*

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lukasz Pawelczyk
On 7 Mar 2014, at 20:09, Greg KH gre...@linuxfoundation.org wrote: On Fri, Mar 07, 2014 at 07:46:44PM +0100, Lukasz Pawelczyk wrote: Problem: Has anyone thought about a mechanism to limit/remove an access to a device during an application runtime? Meaning we have an application that has an

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lukasz Pawelczyk
On 7 Mar 2014, at 20:24, Lennart Poettering mzerq...@0pointer.de wrote: On Fri, 07.03.14 19:45, Lukasz Pawelczyk (hav...@gmail.com) wrote: Problem: Has anyone thought about a mechanism to limit/remove an access to a device during an application runtime? Meaning we have an application that

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Greg KH
On Fri, Mar 07, 2014 at 09:45:28PM +0100, Lukasz Pawelczyk wrote: On 7 Mar 2014, at 20:09, Greg KH gre...@linuxfoundation.org wrote: On Fri, Mar 07, 2014 at 07:46:44PM +0100, Lukasz Pawelczyk wrote: Problem: Has anyone thought about a mechanism to limit/remove an access to a device

Re: [systemd-devel] Suspending access to opened/active /dev/nodes during application runtime

2014-03-07 Thread Lennart Poettering
On Fri, 07.03.14 21:51, Lukasz Pawelczyk (hav...@gmail.com) wrote: Problem: Has anyone thought about a mechanism to limit/remove an access to a device during an application runtime? Meaning we have an application that has an open file descriptor to some /dev/node and depending on