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pam_sm_setcred


SYNOPSIS

       #define PAM_SM_AUTH

       #include <security/pam_modules.h>

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


DESCRIPTION

       The pam_sm_setcred function is the service module's implementation of
       the pam_setcred(3) interface.

       This function performs the task of altering the credentials of the user
       with respect to the corresponding authorization scheme. Generally, an
       authentication module may have access to more information about a user
       than their authentication token. This function is used to make such
       information available to the application. It should only be called
       after the user has been authenticated but before a session has been
       established.

       Valid flags, which may be logically OR'd with PAM_SILENT, are:

       PAM_SILENT
           Do not emit any messages.

       PAM_ESTABLISH_CRED
           Initialize the credentials for the user.

       PAM_DELETE_CRED
           Delete the credentials associated with the authentication service.

       PAM_REINITIALIZE_CRED
           Reinitialize the user credentials.

       PAM_REFRESH_CRED
           Extend the lifetime of the user credentials.

       The way the auth stack is navigated in order to evaluate the
       pam_setcred() function call, independent of the pam_sm_setcred() return
       codes, is exactly the same way that it was navigated when evaluating
       the pam_authenticate() library call. Typically, if a stack entry was
       ignored in evaluating pam_authenticate(), it will be ignored when
       libpam evaluates the pam_setcred() function call. Otherwise, the return
       codes from each module specific pam_sm_setcred() call are treated as
       required.


RETURN VALUES

       PAM_CRED_UNAVAIL
           This module cannot retrieve the user's credentials.

       PAM_CRED_EXPIRED
           The user's credentials have expired.


SEE ALSO

       pam(3), pam_authenticate(3), pam_setcred(3), pam_sm_authenticate(3),
       pam_strerror(3), PAM(8)


Linux-PAM Manual 09/19/2013 PAM_SM_SETCRED(3)



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