Re: [lttng-dev] [lttng-ust RFC v3] Add setuid wrappers for per-UID buffers

2019-05-28 Thread Mathieu Desnoyers
- On May 27, 2019, at 5:51 PM, Gabriel-Andrew Pollo-Guilbert gabriel.pollo-guilb...@efficios.com wrote: > In case of a per-UID buffer, events following a change of user ID should be > forwarded to buffers of the new UID. In order to do so, we add a wrapper > around > setuid(3), setreuid(3) a

[lttng-dev] [lttng-ust RFC v3] Add setuid wrappers for per-UID buffers

2019-05-27 Thread Gabriel-Andrew Pollo-Guilbert
In case of a per-UID buffer, events following a change of user ID should be forwarded to buffers of the new UID. In order to do so, we add a wrapper around setuid(3), setreuid(3) and setresuid(2) that unregister and re-register the application from the session daemon. While there exist some other