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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | COLOPHON |
PAM_SM_AUTHENTICATE(3) Linux-PAM Manual PAM_SM_AUTHENTICATE(3)
pam_sm_authenticate - PAM service function for user authentication
#define PAM_SM_AUTH
#include <security/pam_modules.h>
int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc,
const char **argv);
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.
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.
pam(3), pam_authenticate(3), pam_sm_setcred(3), pam_strerror(3),
PAM(8)
This page is part of the linux-pam (Pluggable Authentication Modules
for Linux) project. Information about the project can be found at
⟨http://www.linux-pam.org/⟩. If you have a bug report for this manual
page, see ⟨//www.linux-pam.org/⟩. This page was obtained from the
tarball Linux-PAM-1.3.0.tar.gz fetched from
⟨http://www.linux-pam.org/library/⟩ on 2017-07-05. If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
Linux-PAM Manual 04/01/2016 PAM_SM_AUTHENTICATE(3)
Pages that refer to this page: pam_get_item(3), pam_set_item(3), pam_sm_setcred(3), pam_debug(8)