# pam_sm_open_session - PAM service function to start session management - man(3) - [phpMan]

[_PAM_SM_OPEN_SESSION_(3)](https://www.chedong.com/phpMan.php/man/PAMSMOPENSESSION/3/markdown)                    Linux-PAM Manual                    [_PAM_SM_OPEN_SESSION_(3)](https://www.chedong.com/phpMan.php/man/PAMSMOPENSESSION/3/markdown)

## NAME
       pam_sm_open_session - PAM service function to start session management

## SYNOPSIS
### #include <security/pam_modules.h>


       **int pam_sm_open_session(pam_handle_t *_**pamh_**, int _**flags_**, int _**argc_**, const char **_**argv_**);**

## DESCRIPTION
       The **pam_sm_open_session **function is the service module's implementation of the
       [**pam_open_session**(3)](https://www.chedong.com/phpMan.php/man/pamopensession/3/markdown) interface.

       This function is called to commence a session. The only valid value for _flags_ is zero or:

       PAM_SILENT
           Do not emit any messages.

## RETURN VALUES
       PAM_SESSION_ERR
           Cannot make/remove an entry for the specified session.

       PAM_SUCCESS
           The session was successfully started.

## SEE ALSO
       [**pam**(3)](https://www.chedong.com/phpMan.php/man/pam/3/markdown), [**pam_open_session**(3)](https://www.chedong.com/phpMan.php/man/pamopensession/3/markdown), [**pam_sm_close_session**(3)](https://www.chedong.com/phpMan.php/man/pamsmclosesession/3/markdown), [**pam_strerror**(3)](https://www.chedong.com/phpMan.php/man/pamstrerror/3/markdown), [**PAM**(8)](https://www.chedong.com/phpMan.php/man/PAM/8/markdown)

Linux-PAM                                    05/07/2023                       [_PAM_SM_OPEN_SESSION_(3)](https://www.chedong.com/phpMan.php/man/PAMSMOPENSESSION/3/markdown)