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   pam_sm_authenticate    ( 3 )

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Имя (Name)

pam_sm_authenticate - PAM service function for user
       authentication

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Синопсис (Synopsis)

#define PAM_SM_AUTH

       #include <security/pam_modules.h>

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

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Описание (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.

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Возвращаемое значение (Return value)

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.

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Смотри также (See also)

pam(3), pam_authenticate(3), pam_sm_setcred(3), pam_strerror(3),
       PAM(8)

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