Modifying process descriptor in device driver

drminix · 06-10-2005, 08:36 AM

hi.

I have added the following code to modify the current process's euid in my device driver code.

current->euid = 0;

However, the above code does not seem to change euid of the current process. What am I doing wrong? I also want to know what current->fsuid holds.

Thanks in advance.

foo_bar_foo · 06-12-2005, 01:28 AM

only a process that has real user id of 0 can set it's effective uid to just any value
this should be done with the POSIX function
int seteuid(uid_t euid);

Linux only has real effective and saved user and group ids
so i have no idea what fsuid is