x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
PAM_SM_AUTHENTICATE(3) Linux-PAM Manual PAM_SM_AUTHENTICATE(3)
NAME
pam_sm_authenticate - PAM service function for user authentication
SYNOPSIS
#define PAM_SM_AUTH
#include <security/pam_modules.h>
PAM_EXTERN int pam_sm_authenticate(pam_handle_t *pamh, int flags,
int argc, const char **argv);
DESCRIPTION
The pam_sm_authenticate function is the service module's implementation
of the pam_authenticate(3) interface.
This function performs the task of authenticating the user.
Valid flags, which may be logically OR'd with PAM_SILENT, are:
PAM_SILENT
Do not emit any messages.
PAM_DISALLOW_NULL_AUTHTOK
Return PAM_AUTH_ERR if the database of authentication tokens for
this authentication mechanism has a NULL entry for the user.
Without this flag, such a NULL token will lead to a success without
the user being prompted.
RETURN VALUES
PAM_AUTH_ERR
Authentication failure.
PAM_CRED_INSUFFICIENT
For some reason the application does not have sufficient
credentials to authenticate the user.
PAM_AUTHINFO_UNAVAIL
The modules were not able to access the authentication information.
This might be due to a network or hardware failure etc.
PAM_SUCCESS
The authentication token was successfully updated.
PAM_USER_UNKNOWN
The supplied username is not known to the authentication service.
PAM_MAXTRIES
One or more of the authentication modules has reached its limit of
tries authenticating the user. Do not try again.
SEE ALSO
pam(3), pam_authenticate(3), pam_sm_setcred(3), pam_strerror(3), PAM(8)
Linux-PAM Manual 09/19/2013 PAM_SM_AUTHENTICATE(3)
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