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/*
Authors:
Pavel Březina <pbrezina@redhat.com>
Copyright (C) 2023 Red Hat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _RADIUS_KDCPREAUTH_H_
#define _RADIUS_KDCPREAUTH_H_
#include <stdlib.h>
#include <krb5/preauth_plugin.h>
struct sss_radiuskdc_state {
const char *plugin_name;
const char *server;
const char *secret;
size_t retries;
int timeout;
};
struct sss_radiuskdc_config {
char *username;
char *server;
char *secret;
size_t retries;
int timeout;
};
struct sss_radiuskdc_client {
krad_client *client;
krad_attrset *attrs;
};
struct sss_radiuskdc_challenge {
struct sss_radiuskdc_client *client;
krb5_context kctx;
krb5_kdcpreauth_callbacks cb;
krb5_kdcpreauth_rock rock;
krb5_kdcpreauth_edata_respond_fn respond;
void *arg;
};
struct sss_radiuskdc_verify {
struct sss_radiuskdc_client *client;
char **indicators;
krb5_context kctx;
krb5_kdcpreauth_rock rock;
krb5_kdcpreauth_callbacks cb;
krb5_enc_tkt_part *enc_tkt_reply;
krb5_kdcpreauth_verify_respond_fn respond;
void *arg;
};
krb5_error_code
sss_radiuskdc_init(const char *plugin_name,
krb5_context kctx,
krb5_kdcpreauth_moddata *_moddata,
const char **_realmnames);
void
sss_radiuskdc_fini(krb5_context kctx,
krb5_kdcpreauth_moddata moddata);
int
sss_radiuskdc_flags(krb5_context kctx,
krb5_preauthtype pa_type);
krb5_error_code
sss_radiuskdc_return_padata(krb5_context kctx,
krb5_pa_data *padata,
krb5_data *req_pkt,
krb5_kdc_req *request,
krb5_kdc_rep *reply,
krb5_keyblock *encrypting_key,
krb5_pa_data **send_pa_out,
krb5_kdcpreauth_callbacks cb,
krb5_kdcpreauth_rock rock,
krb5_kdcpreauth_moddata moddata,
krb5_kdcpreauth_modreq modreq);
krb5_error_code
sss_radiuskdc_enabled(const char *config_name,
krb5_context kctx,
krb5_kdcpreauth_callbacks cb,
krb5_kdcpreauth_rock rock,
char **_config);
void
sss_radiuskdc_config_free(struct sss_radiuskdc_config *config);
krb5_error_code
sss_radiuskdc_config_init(struct sss_radiuskdc_state *state,
krb5_context kctx,
krb5_const_principal princ,
const char *configstr,
struct sss_radiuskdc_config **_config);
krb5_error_code
sss_radiuskdc_set_cookie(krb5_context context,
krb5_kdcpreauth_callbacks cb,
krb5_kdcpreauth_rock rock,
krb5_preauthtype pa_type,
const krb5_data *state);
krb5_error_code
sss_radiuskdc_get_cookie(krb5_context context,
krb5_kdcpreauth_callbacks cb,
krb5_kdcpreauth_rock rock,
krb5_preauthtype pa_type,
krb5_data *_state);
krb5_error_code
sss_radiuskdc_get_complete_attr(const krad_packet *rres,
const char *attr_name,
krb5_data *_data);
krb5_error_code
sss_radiuskdc_put_complete_attr(krad_attrset *attrset,
krad_attr attr,
const krb5_data *datap);
char *
sss_radiuskdc_get_attr_as_string(const krad_packet *packet, const char *attr);
krb5_error_code
sss_radiuskdc_set_attr_as_string(krad_attrset *attrset,
const char *attr,
const char *value);
void
sss_radiuskdc_client_free(struct sss_radiuskdc_client *client);
struct sss_radiuskdc_client *
sss_radiuskdc_client_init(krb5_context kctx,
verto_ctx *vctx,
struct sss_radiuskdc_config *config);
void
sss_radiuskdc_challenge_free(struct sss_radiuskdc_challenge *state);
struct sss_radiuskdc_challenge *
sss_radiuskdc_challenge_init(krb5_context kctx,
krb5_kdcpreauth_callbacks cb,
krb5_kdcpreauth_rock rock,
krb5_kdcpreauth_edata_respond_fn respond,
void *arg,
struct sss_radiuskdc_config *config);
void
sss_radiuskdc_verify_free(struct sss_radiuskdc_verify *state);
struct sss_radiuskdc_verify *
sss_radiuskdc_verify_init(krb5_context kctx,
krb5_kdcpreauth_rock rock,
krb5_kdcpreauth_callbacks cb,
krb5_enc_tkt_part *enc_tkt_reply,
krb5_kdcpreauth_verify_respond_fn respond,
void *arg,
char **indicators,
struct sss_radiuskdc_config *config);
void
sss_radiuskdc_verify_done(krb5_error_code rret,
const krad_packet *rreq,
const krad_packet *rres,
void *data);
#endif /* _RADIUS_KDCPREAUTH_H_ */
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