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/*
Authors:
Simo Sorce <ssorce@redhat.com>
Sumit Bose <sbose@redhat.com>
Copyright (C) 2009 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 __PAMSRV_H__
#define __PAMSRV_H__
#include <security/pam_appl.h>
#include "util/util.h"
#include "responder/common/responder.h"
#include "responder/common/cache_req/cache_req.h"
#include "lib/certmap/sss_certmap.h"
struct pam_auth_req;
typedef void (pam_dp_callback_t)(struct pam_auth_req *preq);
enum pam_initgroups_scheme {
PAM_INITGR_NEVER,
PAM_INITGR_NO_SESSION,
PAM_INITGR_ALWAYS,
PAM_INITGR_INVALID
};
struct pam_ctx {
struct resp_ctx *rctx;
time_t id_timeout;
hash_table_t *id_table;
size_t trusted_uids_count;
uid_t *trusted_uids;
/* List of domains that are accessible even for untrusted users. */
char **public_domains;
int public_domains_count;
/* What services are permitted to access application domains */
char **app_services;
bool cert_auth;
char *ca_db;
struct sss_certmap_ctx *sss_certmap_ctx;
char **smartcard_services;
/* parsed list of pam_response_filter option */
char **pam_filter_opts;
char **prompting_config_sections;
int num_prompting_config_sections;
enum pam_initgroups_scheme initgroups_scheme;
/* List of PAM services that are allowed to authenticate with GSSAPI. */
char **gssapi_services;
/* List of authentication indicators associated with a PAM service */
char **gssapi_indicators_map;
bool gssapi_check_upn;
bool passkey_auth;
struct pam_passkey_table_data *pk_table_data;
};
struct pam_auth_req {
struct cli_ctx *cctx;
struct sss_domain_info *domain;
enum cache_req_dom_type req_dom_type;
struct pam_data *pd;
pam_dp_callback_t *callback;
bool is_uid_trusted;
void *data;
bool use_cached_auth;
/* whether cached authentication was tried and failed */
bool cached_auth_failed;
struct ldb_message *user_obj;
struct cert_auth_info *cert_list;
struct cert_auth_info *current_cert;
/* Switched to 'true' if the backend indicates that it cannot handle
* Smartcard authentication, but Smartcard authentication is
* possible and local Smartcard authentication is allowed. */
bool cert_auth_local;
/* Switched to 'true' if authentication (not pre-authentication) was
* started without a login name and the name had to be lookup up with the
* certificate used for authentication. Since reading the certificate from
* the Smartcard already involves the PIN validation in this case there
* would be no need for an additional Smartcard interaction if only local
* Smartcard authentication is possible. */
bool initial_cert_auth_successful;
bool passkey_data_exists;
uint32_t client_id_num;
};
struct pam_resp_auth_type {
bool password_auth;
bool otp_auth;
bool cert_auth;
bool passkey_auth;
bool backend_returned_no_auth_type;
};
struct sss_cmd_table *get_pam_cmds(void);
errno_t
pam_dp_send_req(struct pam_auth_req *preq);
int pam_check_user_search(struct pam_auth_req *preq);
int pam_check_user_done(struct pam_auth_req *preq, int ret);
void pam_reply(struct pam_auth_req *preq);
errno_t p11_child_init(struct pam_ctx *pctx);
struct cert_auth_info;
const char *sss_cai_get_cert(struct cert_auth_info *i);
const char *sss_cai_get_token_name(struct cert_auth_info *i);
const char *sss_cai_get_module_name(struct cert_auth_info *i);
const char *sss_cai_get_key_id(struct cert_auth_info *i);
const char *sss_cai_get_label(struct cert_auth_info *i);
struct cert_auth_info *sss_cai_get_next(struct cert_auth_info *i);
struct ldb_result *sss_cai_get_cert_user_objs(struct cert_auth_info *i);
void sss_cai_set_cert_user_objs(struct cert_auth_info *i,
struct ldb_result *cert_user_objs);
void sss_cai_check_users(struct cert_auth_info **list, size_t *_cert_count,
size_t *_cert_user_count);
struct tevent_req *pam_check_cert_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
const char *ca_db,
time_t timeout,
const char *verify_opts,
struct sss_certmap_ctx *sss_certmap_ctx,
const char *uri,
struct pam_data *pd);
errno_t pam_check_cert_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
struct cert_auth_info **cert_list);
errno_t add_pam_cert_response(struct pam_data *pd, struct sss_domain_info *dom,
const char *sysdb_username,
struct cert_auth_info *cert_info,
enum response_type type);
bool may_do_cert_auth(struct pam_ctx *pctx, struct pam_data *pd);
errno_t p11_refresh_certmap_ctx(struct pam_ctx *pctx,
struct sss_domain_info *domains);
errno_t
pam_set_last_online_auth_with_curr_token(struct sss_domain_info *domain,
const char *username,
uint64_t value);
errno_t filter_responses(struct pam_ctx *pctx,
struct response_data *resp_list,
struct pam_data *pd);
errno_t pam_get_auth_types(struct pam_data *pd,
struct pam_resp_auth_type *_auth_types);
errno_t pam_eval_prompting_config(struct pam_ctx *pctx, struct pam_data *pd);
enum pam_initgroups_scheme pam_initgroups_string_to_enum(const char *str);
const char *pam_initgroup_enum_to_string(enum pam_initgroups_scheme scheme);
int pam_cmd_gssapi_init(struct cli_ctx *cli_ctx);
int pam_cmd_gssapi_sec_ctx(struct cli_ctx *cctx);
#endif /* __PAMSRV_H__ */
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