Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

drv_priv(9f) [linux man page]

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)

Check Out this Related Man Page

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)
Man Page

12 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Featured Books and Articles by Active Forum Members

The UNIX and Linux Forums have a number of active members that have published books or papers related to shell programming and scripting. You can check out their publications here: Link Removed Please note, as you can imagine, our forum experts can be quite busy! You will get a response... (0 Replies)
Discussion started by: Neo
0 Replies

2. Emergency UNIX and Linux Support

User Guide: Posting in the Emergency Forum

Emergency UNIX and Linux Support !! Help Me! Forum (Request Urgent Help) README FIRST: How to Request Emergency or Urgent Help: You may post emergency work-related questions in the emergency forum. To post in this forum you will need to use your Bits. All questions answered on a "best... (0 Replies)
Discussion started by: Neo
0 Replies

3. Homework & Coursework Questions

Rules for Homework & Coursework Questions Forum

Homework Help: On Posting Questions: Any and all high school and undergraduate homework assignments or textbook style exercises for which you are seeking assistance are to be posted only in our Homework & Coursework Questions area--not in blogs, visitor messages, PMs, or the main technical... (0 Replies)
Discussion started by: Neo
0 Replies

4. What is on Your Mind?

Please Donate to the Red Cross for Earthquake and Tsunami Relief in Japan

Dear Forum Members, The UNIX and Linux Forums are working directly with the Red Cross to provide ad banners on our site to support Earthquake and Tsunami Relief in Japan. Registered users do not see these banners. However, if you wish to contribute directly on behalf of yourself and the... (8 Replies)
Discussion started by: Neo
8 Replies

5. How to Post in the The UNIX and Linux Forums

Forum Video Tutorial: How to Use Code Tags

How to Use Code Tags in The UNIX and Linux Forums Developer: This video tutorial was created by scott for forum users. Everyone should use code tags when posting code and command line logic in the forums. cPF45jjWe7Q A full list of BB codes is available here. (8 Replies)
Discussion started by: Neo
8 Replies

6. What is on Your Mind?

Merry Christmas!

https://www.unix.com/members/neo-albums-forum-pics-picture567-merry-christmas.png (1 Reply)
Discussion started by: Neo
1 Replies

7. UNIX for Beginners Questions & Answers

Simple rules of the UNIX.COM forums:

RULES OF THE UNIX AND LINUX FORUMS For the latest version of the community rules (the official community rules page), please visit here. No flames, shouting (all caps), sarcasm, bullying, profanity or arrogant posts. No negative comments about others or impolite remarks. Be patient. No... (1 Reply)
Discussion started by: Neo
1 Replies

8. Shell Programming and Scripting

Scripts without shebang

I see lot of ad-hoc shell scripts in our servers which don't have a shebang at the beginning . Does this mean that it will run on any shell ? Is it a good practice to create scripts (even ad-hoc ones) without shebang ? (16 Replies)
Discussion started by: kraljic
16 Replies

9. What is on Your Mind?

Status of UNIX.COM Forum Transformation

Having spent a lot of time over the past year taking a legacy vBulletin site (this forum) and making the site responsive on mobile; I've happy with the results; but it will soon be time to move on. Basically, at our core, we are a LAMP (Linux, Apache2, MySQL and PHP) site, and vBulletin was... (6 Replies)
Discussion started by: Neo
6 Replies

10. What is on Your Mind?

Answers to Recently Asked Questions about UNIX.COM

Here are some answers to some of the recent questions I have received about UNIX.COM. So, I thought I would take time to answer them here in this post: Is it expected that the original poster "thank" everyone who responds to his / her discussion thread? It is always a good practice in all... (7 Replies)
Discussion started by: Neo
7 Replies

11. What is on Your Mind?

YouTube: How to Use Code Tags and Format Posts @UNIX.com

By special request, and long overdue, I have updated our "code tags" video and so now we have: How to Use Code Tags and Format Posts @UNIX.com in 4K https://youtu.be/4BuPvWJV__k (3 Replies)
Discussion started by: Neo
3 Replies

12. What is on Your Mind?

UNIX.com End of Year (EOY) Report (2019)

Here is a quick EOY report for 2019. 2019 has been a year of "downward trend reversal" for UNIX.com. In fact, if we compare total Google search impressions from the peak days in December 2019 to the peak days in mid December 2018, traffic is up 43% percent. That is a very respectable growth... (0 Replies)
Discussion started by: Neo
0 Replies