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.bz2 fetched from ⟨http://www.linux-pam.org/library/⟩ on 2021-04-01. 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 email@example.com 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)