pam_open_session(3) — Linux manual page


PAM_OPEN_SESSION(3)         Linux-PAM Manual         PAM_OPEN_SESSION(3)

NAME         top

       pam_open_session - start PAM session management

SYNOPSIS         top

       #include <security/pam_appl.h>

       int pam_open_session(pam_handle_t *pamh, int flags);

DESCRIPTION         top

       The pam_open_session function sets up a user session for a
       previously successful authenticated user. The session should
       later be terminated with a call to pam_close_session(3).

       It should be noted that the effective uid, geteuid(2). of the
       application should be of sufficient privilege to perform such
       tasks as creating or mounting the user's home directory for

       The flags argument is the binary or of zero or more of the
       following values:

           Do not emit any messages.

RETURN VALUES         top

           General failure.

           Memory buffer error.

           Session failure.

           Session was successful created.

SEE ALSO         top

       pam_close_session(3), pam_strerror(3)

COLOPHON         top

       This page is part of the linux-pam (Pluggable Authentication
       Modules for Linux) project.  Information about the project can be
       found at ⟨⟩.  If you have a bug report
       for this manual page, see ⟨//⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨⟩ on 2023-12-22.  (At
       that time, the date of the most recent commit that was found in
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       (which is not part of the original manual page), send a mail to

Linux-PAM Manual               12/22/2023            PAM_OPEN_SESSION(3)

Pages that refer to this page: pam(3)pam_close_session(3)pam_setcred(3)pam_sm_open_session(3)pam_filter(8)