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/*
samba -- Unix SMB/CIFS implementation.
Client credentials structure
Copyright (C) Jelmer Vernooij 2004-2006
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
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 __CREDENTIALS_H__
#define __CREDENTIALS_H__
#include "../lib/util/data_blob.h"
#include "librpc/gen_ndr/misc.h"
struct ccache_container;
struct tevent_context;
/* In order of priority */
enum credentials_obtained {
CRED_UNINITIALISED = 0, /* We don't even have a guess yet */
CRED_CALLBACK, /* Callback should be used to obtain value */
CRED_GUESS_ENV, /* Current value should be used, which was guessed */
CRED_GUESS_FILE, /* A guess from a file (or file pointed at in env variable) */
CRED_CALLBACK_RESULT, /* Value was obtained from a callback */
CRED_SPECIFIED /* Was explicitly specified on the command-line */
};
enum credentials_use_kerberos {
CRED_AUTO_USE_KERBEROS = 0, /* Default, we try kerberos if available */
CRED_DONT_USE_KERBEROS, /* Sometimes trying kerberos just does 'bad things', so don't */
CRED_MUST_USE_KERBEROS /* Sometimes administrators are parinoid, so always do kerberos */
};
enum credentials_krb_forwardable {
CRED_AUTO_KRB_FORWARDABLE = 0, /* Default, follow library defaults */
CRED_NO_KRB_FORWARDABLE, /* not forwardable */
CRED_FORCE_KRB_FORWARDABLE /* forwardable */
};
#define CLI_CRED_NTLM2 0x01
#define CLI_CRED_NTLMv2_AUTH 0x02
#define CLI_CRED_LANMAN_AUTH 0x04
#define CLI_CRED_NTLM_AUTH 0x08
#define CLI_CRED_CLEAR_AUTH 0x10 /* TODO: Push cleartext auth with this flag */
struct cli_credentials {
enum credentials_obtained workstation_obtained;
enum credentials_obtained username_obtained;
enum credentials_obtained password_obtained;
enum credentials_obtained domain_obtained;
enum credentials_obtained realm_obtained;
enum credentials_obtained ccache_obtained;
enum credentials_obtained client_gss_creds_obtained;
enum credentials_obtained principal_obtained;
enum credentials_obtained keytab_obtained;
enum credentials_obtained server_gss_creds_obtained;
/* Threshold values (essentially a MAX() over a number of the
* above) for the ccache and GSS credentials, to ensure we
* regenerate/pick correctly */
enum credentials_obtained ccache_threshold;
enum credentials_obtained client_gss_creds_threshold;
const char *workstation;
const char *username;
const char *password;
const char *old_password;
const char *domain;
const char *realm;
const char *principal;
char *salt_principal;
char *impersonate_principal;
char *target_service;
const char *bind_dn;
/* Allows authentication from a keytab or similar */
struct samr_Password *nt_hash;
/* Allows NTLM pass-though authentication */
DATA_BLOB lm_response;
DATA_BLOB nt_response;
struct ccache_container *ccache;
struct gssapi_creds_container *client_gss_creds;
struct keytab_container *keytab;
struct gssapi_creds_container *server_gss_creds;
const char *(*workstation_cb) (struct cli_credentials *);
const char *(*password_cb) (struct cli_credentials *);
const char *(*username_cb) (struct cli_credentials *);
const char *(*domain_cb) (struct cli_credentials *);
const char *(*realm_cb) (struct cli_credentials *);
const char *(*principal_cb) (struct cli_credentials *);
/* Private handle for the callback routines to use */
void *priv_data;
struct netlogon_creds_CredentialState *netlogon_creds;
enum netr_SchannelType secure_channel_type;
int kvno;
time_t password_last_changed_time;
struct smb_krb5_context *smb_krb5_context;
/* We are flagged to get machine account details from the
* secrets.ldb when we are asked for a username or password */
bool machine_account_pending;
struct loadparm_context *machine_account_pending_lp_ctx;
/* Is this a machine account? */
bool machine_account;
/* Should we be trying to use kerberos? */
enum credentials_use_kerberos use_kerberos;
/* Should we get a forwardable ticket? */
enum credentials_krb_forwardable krb_forwardable;
/* gensec features which should be used for connections */
uint32_t gensec_features;
/* Number of retries left before bailing out */
int tries;
/* Whether any callback is currently running */
bool callback_running;
};
struct ldb_context;
struct ldb_message;
struct loadparm_context;
struct ccache_container;
struct gssapi_creds_container;
const char *cli_credentials_get_workstation(struct cli_credentials *cred);
bool cli_credentials_set_workstation(struct cli_credentials *cred,
const char *val,
enum credentials_obtained obtained);
bool cli_credentials_is_anonymous(struct cli_credentials *cred);
struct cli_credentials *cli_credentials_init(TALLOC_CTX *mem_ctx);
void cli_credentials_set_anonymous(struct cli_credentials *cred);
bool cli_credentials_wrong_password(struct cli_credentials *cred);
const char *cli_credentials_get_password(struct cli_credentials *cred);
void cli_credentials_get_ntlm_username_domain(struct cli_credentials *cred, TALLOC_CTX *mem_ctx,
const char **username,
const char **domain);
NTSTATUS cli_credentials_get_ntlm_response(struct cli_credentials *cred, TALLOC_CTX *mem_ctx,
int *flags,
DATA_BLOB challenge, DATA_BLOB target_info,
DATA_BLOB *_lm_response, DATA_BLOB *_nt_response,
DATA_BLOB *_lm_session_key, DATA_BLOB *_session_key);
const char *cli_credentials_get_realm(struct cli_credentials *cred);
const char *cli_credentials_get_username(struct cli_credentials *cred);
int cli_credentials_get_krb5_context(struct cli_credentials *cred,
struct loadparm_context *lp_ctx,
struct smb_krb5_context **smb_krb5_context);
int cli_credentials_get_ccache(struct cli_credentials *cred,
struct tevent_context *event_ctx,
struct loadparm_context *lp_ctx,
struct ccache_container **ccc,
const char **error_string);
int cli_credentials_get_named_ccache(struct cli_credentials *cred,
struct tevent_context *event_ctx,
struct loadparm_context *lp_ctx,
char *ccache_name,
struct ccache_container **ccc, const char **error_string);
int cli_credentials_get_keytab(struct cli_credentials *cred,
struct loadparm_context *lp_ctx,
struct keytab_container **_ktc);
const char *cli_credentials_get_domain(struct cli_credentials *cred);
struct netlogon_creds_CredentialState *cli_credentials_get_netlogon_creds(struct cli_credentials *cred);
void cli_credentials_set_machine_account_pending(struct cli_credentials *cred,
struct loadparm_context *lp_ctx);
void cli_credentials_set_conf(struct cli_credentials *cred,
struct loadparm_context *lp_ctx);
const char *cli_credentials_get_principal(struct cli_credentials *cred, TALLOC_CTX *mem_ctx);
int cli_credentials_get_server_gss_creds(struct cli_credentials *cred,
struct loadparm_context *lp_ctx,
struct gssapi_creds_container **_gcc);
int cli_credentials_get_client_gss_creds(struct cli_credentials *cred,
struct tevent_context *event_ctx,
struct loadparm_context *lp_ctx,
struct gssapi_creds_container **_gcc,
const char **error_string);
void cli_credentials_set_kerberos_state(struct cli_credentials *creds,
enum credentials_use_kerberos use_kerberos);
void cli_credentials_set_krb_forwardable(struct cli_credentials *creds,
enum credentials_krb_forwardable krb_forwardable);
bool cli_credentials_set_domain(struct cli_credentials *cred,
const char *val,
enum credentials_obtained obtained);
bool cli_credentials_set_domain_callback(struct cli_credentials *cred,
const char *(*domain_cb) (struct cli_credentials *));
bool cli_credentials_set_username(struct cli_credentials *cred,
const char *val, enum credentials_obtained obtained);
bool cli_credentials_set_username_callback(struct cli_credentials *cred,
const char *(*username_cb) (struct cli_credentials *));
bool cli_credentials_set_principal(struct cli_credentials *cred,
const char *val,
enum credentials_obtained obtained);
bool cli_credentials_set_principal_callback(struct cli_credentials *cred,
const char *(*principal_cb) (struct cli_credentials *));
bool cli_credentials_set_password(struct cli_credentials *cred,
const char *val,
enum credentials_obtained obtained);
struct cli_credentials *cli_credentials_init_anon(TALLOC_CTX *mem_ctx);
void cli_credentials_parse_string(struct cli_credentials *credentials, const char *data, enum credentials_obtained obtained);
const struct samr_Password *cli_credentials_get_nt_hash(struct cli_credentials *cred,
TALLOC_CTX *mem_ctx);
bool cli_credentials_set_realm(struct cli_credentials *cred,
const char *val,
enum credentials_obtained obtained);
void cli_credentials_set_secure_channel_type(struct cli_credentials *cred,
enum netr_SchannelType secure_channel_type);
void cli_credentials_set_password_last_changed_time(struct cli_credentials *cred,
time_t last_change_time);
void cli_credentials_set_netlogon_creds(struct cli_credentials *cred,
struct netlogon_creds_CredentialState *netlogon_creds);
NTSTATUS cli_credentials_set_krb5_context(struct cli_credentials *cred,
struct smb_krb5_context *smb_krb5_context);
NTSTATUS cli_credentials_set_stored_principal(struct cli_credentials *cred,
struct loadparm_context *lp_ctx,
const char *serviceprincipal);
NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cred,
struct loadparm_context *lp_ctx);
bool cli_credentials_authentication_requested(struct cli_credentials *cred);
void cli_credentials_guess(struct cli_credentials *cred,
struct loadparm_context *lp_ctx);
bool cli_credentials_set_bind_dn(struct cli_credentials *cred,
const char *bind_dn);
const char *cli_credentials_get_bind_dn(struct cli_credentials *cred);
bool cli_credentials_parse_file(struct cli_credentials *cred, const char *file, enum credentials_obtained obtained);
const char *cli_credentials_get_unparsed_name(struct cli_credentials *credentials, TALLOC_CTX *mem_ctx);
bool cli_credentials_set_password_callback(struct cli_credentials *cred,
const char *(*password_cb) (struct cli_credentials *));
enum netr_SchannelType cli_credentials_get_secure_channel_type(struct cli_credentials *cred);
time_t cli_credentials_get_password_last_changed_time(struct cli_credentials *cred);
void cli_credentials_set_kvno(struct cli_credentials *cred,
int kvno);
bool cli_credentials_set_nt_hash(struct cli_credentials *cred,
const struct samr_Password *nt_hash,
enum credentials_obtained obtained);
bool cli_credentials_set_ntlm_response(struct cli_credentials *cred,
const DATA_BLOB *lm_response,
const DATA_BLOB *nt_response,
enum credentials_obtained obtained);
int cli_credentials_set_keytab_name(struct cli_credentials *cred,
struct loadparm_context *lp_ctx,
const char *keytab_name,
enum credentials_obtained obtained);
void cli_credentials_set_gensec_features(struct cli_credentials *creds, uint32_t gensec_features);
uint32_t cli_credentials_get_gensec_features(struct cli_credentials *creds);
int cli_credentials_set_ccache(struct cli_credentials *cred,
struct loadparm_context *lp_ctx,
const char *name,
enum credentials_obtained obtained,
const char **error_string);
bool cli_credentials_parse_password_file(struct cli_credentials *credentials, const char *file, enum credentials_obtained obtained);
bool cli_credentials_parse_password_fd(struct cli_credentials *credentials,
int fd, enum credentials_obtained obtained);
void cli_credentials_invalidate_ccache(struct cli_credentials *cred,
enum credentials_obtained obtained);
void cli_credentials_set_salt_principal(struct cli_credentials *cred, const char *principal);
void cli_credentials_set_impersonate_principal(struct cli_credentials *cred, const char *principal);
void cli_credentials_set_target_service(struct cli_credentials *cred, const char *principal);
const char *cli_credentials_get_salt_principal(struct cli_credentials *cred);
const char *cli_credentials_get_impersonate_principal(struct cli_credentials *cred);
const char *cli_credentials_get_target_service(struct cli_credentials *cred);
enum credentials_use_kerberos cli_credentials_get_kerberos_state(struct cli_credentials *creds);
enum credentials_krb_forwardable cli_credentials_get_krb_forwardable(struct cli_credentials *creds);
NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
struct loadparm_context *lp_ctx,
struct ldb_context *ldb,
const char *base,
const char *filter,
char **error_string);
int cli_credentials_get_kvno(struct cli_credentials *cred);
#endif /* __CREDENTIALS_H__ */
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