suse man page for drv_priv

Query: drv_priv

OS: suse

Section: 9f

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

drv_priv(9F)						   Kernel Functions for Drivers 					      drv_priv(9F)

NAME
drv_priv - determine driver privilege
SYNOPSIS
#include <sys/types.h> #include <sys/cred.h> #include <sys/ddi.h> int drv_priv(cred_t *cr);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
cr Pointer to the user credential structure.
DESCRIPTION
drv_priv() provides a general interface to the system privilege policy. It determines whether the credentials supplied by the user creden- tial structure pointed to by cr identify a process that has the {PRIV_SYS_DEVICES} privilege asserted in its effective set. This function should be used only when file access modes, special minor device numbers, and the device policy (see privileges(5), add_drv(1M)) are insuf- ficient to provide protection for the requested driver function. It is intended to replace all calls to suser() and any explicit checks for effective user ID = 0 in driver code.
RETURN VALUES
This routine returns 0 if it succeeds, EPERM if it fails.
CONTEXT
drv_priv() can be called from user or interrupt context.
SEE ALSO
add_drv(1M), update_drv(1M), privileges(5) Writing Device Drivers SunOS 5.10 29 Jan 2003 drv_priv(9F)
Related Man Pages
drv_priv(9f) - x11r4
drv_priv(9f) - v7
drv_priv(9f) - debian
drv_priv(9f) - osx
drv_priv(9f) - suse
Similar Topics in the Unix Linux Community
Migrating to UNIX
Cut command on RHEL 6.8 compatibility issues
Update kernel Linux without reboot?!
The Future of the PM (Private Message) System at UNIX.com
32 bit process addressing more than 4GB