PAM_SM_OPEN_SESSION(3PAM) PAM Library Functions PAM_SM_OPEN_SESSION(3PAM)


NAME


pam_sm_open_session, pam_sm_close_session - service provider
implementation for pam_open_session and pam_close_session

SYNOPSIS


cc [ flag ... ] file ... -lpam [ library ... ]
#include <security/pam_appl.h>
#include <security/pam_modules.h>


int pam_sm_open_session(pam_handle_t *pamh, int flags,
int argc, const char **argv);


int pam_sm_close_session(pam_handle_t *pamh, int flags,
int argc, const char **argv);


DESCRIPTION


In response to a call to pam_open_session(3PAM) and
pam_close_session(3PAM), the PAM framework calls pam_sm_open_session()
and pam_sm_close_session(), respectively from the modules listed in the
pam.conf(5) file. The session management provider supplies the back-end
functionality for this interface function.


The pam_sm_open_session() function is called to initiate session
management. The pam_sm_close_session() function is invoked when a session
has terminated. The argument pamh is an authentication handle. The
following flag may be set in the flags field:

PAM_SILENT
Session service should not generate any messages.


The argc argument represents the number of module options passed in from
the configuration file pam.conf(5). argv specifies the module options,
which are interpreted and processed by the session management service.
If an unknown option is passed in, an error should be logged through
syslog(3C) and the option ignored.

RETURN VALUES


Upon successful completion, PAM_SUCCESS should be returned. The following
values may also be returned upon error:

PAM_SESSION_ERR
Cannot make or remove an entry for the specified
session.


PAM_IGNORE
Ignore underlying session module regardless of whether
the control flag is required, optional or sufficient.


ATTRIBUTES


See attributes(7) for description of the following attributes:


+--------------------+-------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-------------------------+
|Interface Stability | Stable |
+--------------------+-------------------------+
|MT-Level | MT-Safe with exceptions |
+--------------------+-------------------------+

SEE ALSO


syslog(3C), libpam(3LIB), pam(3PAM), pam_open_session(3PAM), pam.conf(5),
attributes(7)

NOTES


The interfaces in libpam are MT-Safe only if each thread within the
multithreaded application uses its own PAM handle.


June 20, 2021 PAM_SM_OPEN_SESSION(3PAM)