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/* 
   Unix SMB/CIFS mplementation.
   LDAP protocol helper functions for SAMBA
   Copyright (C) Gerald Carter			2001-2003

   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 _SMBLDAP_H
#define _SMBLDAP_H

struct smbldap_state;

#ifdef HAVE_LDAP

/* specify schema versions between 2.2. and 3.0 */

#define SCHEMAVER_SAMBAACCOUNT		1
#define SCHEMAVER_SAMBASAMACCOUNT	2

/* objectclass names */

#define LDAP_OBJ_SAMBASAMACCOUNT	"sambaSamAccount"
#define LDAP_OBJ_SAMBAACCOUNT		"sambaAccount"
#define LDAP_OBJ_GROUPMAP		"sambaGroupMapping"
#define LDAP_OBJ_DOMINFO		"sambaDomain"
#define LDAP_OBJ_IDPOOL			"sambaUnixIdPool"
#define LDAP_OBJ_IDMAP_ENTRY		"sambaIdmapEntry"
#define LDAP_OBJ_SID_ENTRY		"sambaSidEntry"
#define LDAP_OBJ_TRUST_PASSWORD         "sambaTrustPassword"
#define LDAP_OBJ_TRUSTDOM_PASSWORD      "sambaTrustedDomainPassword"

#define LDAP_OBJ_ACCOUNT		"account"
#define LDAP_OBJ_POSIXACCOUNT		"posixAccount"
#define LDAP_OBJ_POSIXGROUP		"posixGroup"
#define LDAP_OBJ_OU			"organizationalUnit"

/* some generic attributes that get reused a lot */

#define LDAP_ATTRIBUTE_SID		"sambaSID"
#define LDAP_ATTRIBUTE_UIDNUMBER	"uidNumber"
#define LDAP_ATTRIBUTE_GIDNUMBER	"gidNumber"
#define LDAP_ATTRIBUTE_SID_LIST		"sambaSIDList"

/* attribute map table indexes */

#define LDAP_ATTR_LIST_END		0
#define LDAP_ATTR_UID			1
#define LDAP_ATTR_UIDNUMBER		2
#define LDAP_ATTR_GIDNUMBER		3
#define LDAP_ATTR_UNIX_HOME		4
#define LDAP_ATTR_PWD_LAST_SET		5
#define LDAP_ATTR_PWD_CAN_CHANGE	6
#define LDAP_ATTR_PWD_MUST_CHANGE	7
#define LDAP_ATTR_LOGON_TIME		8
#define LDAP_ATTR_LOGOFF_TIME		9
#define LDAP_ATTR_KICKOFF_TIME		10
#define LDAP_ATTR_CN			11
#define LDAP_ATTR_DISPLAY_NAME		12
#define LDAP_ATTR_HOME_PATH		13
#define LDAP_ATTR_LOGON_SCRIPT		14
#define LDAP_ATTR_PROFILE_PATH		15
#define LDAP_ATTR_DESC			16
#define LDAP_ATTR_USER_WKS		17
#define LDAP_ATTR_USER_SID		18
#define LDAP_ATTR_USER_RID		18
#define LDAP_ATTR_PRIMARY_GROUP_SID	19
#define LDAP_ATTR_PRIMARY_GROUP_RID	20
#define LDAP_ATTR_LMPW			21
#define LDAP_ATTR_NTPW			22
#define LDAP_ATTR_DOMAIN		23
#define LDAP_ATTR_OBJCLASS		24
#define LDAP_ATTR_ACB_INFO		25
#define LDAP_ATTR_NEXT_USERRID		26
#define LDAP_ATTR_NEXT_GROUPRID		27
#define LDAP_ATTR_DOM_SID		28
#define LDAP_ATTR_HOME_DRIVE		29
#define LDAP_ATTR_GROUP_SID		30
#define LDAP_ATTR_GROUP_TYPE		31
#define LDAP_ATTR_SID			32
#define LDAP_ATTR_ALGORITHMIC_RID_BASE  33
#define LDAP_ATTR_NEXT_RID              34
#define LDAP_ATTR_BAD_PASSWORD_COUNT	35
#define LDAP_ATTR_LOGON_COUNT		36
#define LDAP_ATTR_MUNGED_DIAL		37
#define LDAP_ATTR_BAD_PASSWORD_TIME	38
#define LDAP_ATTR_PWD_HISTORY           39
#define LDAP_ATTR_SID_LIST		40
#define LDAP_ATTR_MOD_TIMESTAMP         41
#define LDAP_ATTR_LOGON_HOURS		42 
#define LDAP_ATTR_TRUST_PASSWD_FLAGS    43
#define LDAP_ATTR_SN			44


typedef struct _attrib_map_entry {
	int		attrib;
	const char 	*name;
} ATTRIB_MAP_ENTRY;


/* structures */

extern ATTRIB_MAP_ENTRY attrib_map_v22[];
extern ATTRIB_MAP_ENTRY attrib_map_to_delete_v22[];
extern ATTRIB_MAP_ENTRY attrib_map_v30[];
extern ATTRIB_MAP_ENTRY attrib_map_to_delete_v30[];
extern ATTRIB_MAP_ENTRY dominfo_attr_list[];
extern ATTRIB_MAP_ENTRY groupmap_attr_list[];
extern ATTRIB_MAP_ENTRY groupmap_attr_list_to_delete[];
extern ATTRIB_MAP_ENTRY idpool_attr_list[];
extern ATTRIB_MAP_ENTRY sidmap_attr_list[];
extern ATTRIB_MAP_ENTRY trustpw_attr_list[];


/* Function declarations -- not included in proto.h so we don't
   have to worry about LDAP structure types */

NTSTATUS smbldap_init(TALLOC_CTX *mem_ctx,
		      struct event_context *event_ctx,
                      const char *location,
                      struct smbldap_state **smbldap_state);

const char* get_attr_key2string( ATTRIB_MAP_ENTRY table[], int key );
const char** get_attr_list( TALLOC_CTX *mem_ctx, ATTRIB_MAP_ENTRY table[] );
void smbldap_set_mod (LDAPMod *** modlist, int modop, const char *attribute, const char *value);
void smbldap_make_mod(LDAP *ldap_struct, LDAPMessage *existing,
		      LDAPMod ***mods,
		      const char *attribute, const char *newval);
bool smbldap_get_single_attribute (LDAP * ldap_struct, LDAPMessage * entry,
				   const char *attribute, char *value,
				   int max_len);
int smbldap_modify(struct smbldap_state *ldap_state,
                   const char *dn,
                   LDAPMod *attrs[]);

/**
 * Struct to keep the state for all the ldap stuff 
 *
 */

struct smbldap_state {
	LDAP *ldap_struct;
	pid_t pid;
	time_t last_ping; /* monotonic */
	/* retrive-once info */
	const char *uri;

	/* credentials */
	bool anonymous;
	char *bind_dn;
	char *bind_secret;

	bool paged_results;

	unsigned int num_failures;

	time_t last_use; /* monotonic */
	struct event_context *event_context;
	struct timed_event *idle_event;

	struct timeval last_rebind; /* monotonic */
};

/* struct used by both pdb_ldap.c and pdb_nds.c */

struct ldapsam_privates {
	struct smbldap_state *smbldap_state;

	/* Former statics */
	LDAPMessage *result;
	LDAPMessage *entry;
	int index;

	const char *domain_name;
	struct dom_sid domain_sid;

	/* configuration items */
	int schema_ver;

	char *domain_dn;

	/* Is this NDS ldap? */
	int is_nds_ldap;

	/* ldap server location parameter */
	char *location;

	struct {
		char *filter;
		LDAPMessage *result;
	} search_cache;
};

/* Functions shared between pdb_ldap.c and pdb_nds.c. */
NTSTATUS pdb_init_ldapsam_compat( struct pdb_methods **pdb_method, const char *location);
void private_data_free_fn(void **result);
int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
                                  const char *user,
                                  LDAPMessage ** result,
                                  const char **attr);
NTSTATUS pdb_init_ldapsam( struct pdb_methods **pdb_method, const char *location);
const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver );

char * smbldap_talloc_single_attribute(LDAP *ldap_struct, LDAPMessage *entry,
				       const char *attribute,
				       TALLOC_CTX *mem_ctx);
char * smbldap_talloc_first_attribute(LDAP *ldap_struct, LDAPMessage *entry,
				      const char *attribute,
				      TALLOC_CTX *mem_ctx);
char * smbldap_talloc_smallest_attribute(LDAP *ldap_struct, LDAPMessage *entry,
					 const char *attribute,
					 TALLOC_CTX *mem_ctx);
bool smbldap_talloc_single_blob(TALLOC_CTX *mem_ctx, LDAP *ld,
				LDAPMessage *msg, const char *attrib,
				DATA_BLOB *blob);
bool smbldap_pull_sid(LDAP *ld, LDAPMessage *msg, const char *attrib,
		      struct dom_sid *sid);
void talloc_autofree_ldapmsg(TALLOC_CTX *mem_ctx, LDAPMessage *result);
void talloc_autofree_ldapmod(TALLOC_CTX *mem_ctx, LDAPMod **mod);
char *smbldap_talloc_dn(TALLOC_CTX *mem_ctx, LDAP *ld,
			      LDAPMessage *entry);


/* The following definitions come from lib/smbldap.c  */

int smb_ldap_start_tls(LDAP *ldap_struct, int version);
int smb_ldap_setup_full_conn(LDAP **ldap_struct, const char *uri);
int smbldap_search(struct smbldap_state *ldap_state,
		   const char *base, int scope, const char *filter,
		   const char *attrs[], int attrsonly,
		   LDAPMessage **res);
int smbldap_search_paged(struct smbldap_state *ldap_state,
			 const char *base, int scope, const char *filter,
			 const char **attrs, int attrsonly, int pagesize,
			 LDAPMessage **res, void **cookie);
int smbldap_modify(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[]);
int smbldap_add(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[]);
int smbldap_delete(struct smbldap_state *ldap_state, const char *dn);
int smbldap_extended_operation(struct smbldap_state *ldap_state,
			       LDAP_CONST char *reqoid, struct berval *reqdata,
			       LDAPControl **serverctrls, LDAPControl **clientctrls,
			       char **retoidp, struct berval **retdatap);
int smbldap_search_suffix (struct smbldap_state *ldap_state,
			   const char *filter, const char **search_attr,
			   LDAPMessage ** result);
void smbldap_free_struct(struct smbldap_state **ldap_state) ;
NTSTATUS smbldap_init(TALLOC_CTX *mem_ctx, struct event_context *event_ctx,
		      const char *location,
		      struct smbldap_state **smbldap_state);
bool smbldap_has_control(LDAP *ld, const char *control);
bool smbldap_has_extension(LDAP *ld, const char *extension);
bool smbldap_has_naming_context(LDAP *ld, const char *naming_context);
bool smbldap_set_creds(struct smbldap_state *ldap_state, bool anon, const char *dn, const char *secret);

/* The following definitions come from lib/smbldap_util.c  */

NTSTATUS smbldap_search_domain_info(struct smbldap_state *ldap_state,
                                    LDAPMessage ** result, const char *domain_name,
                                    bool try_add);

#else
#define LDAP void
#define LDAPMessage void
#define LDAPMod void
#define LDAP_CONST const
#define LDAPControl void
struct berval;
struct ldapsam_privates;
#endif 	/* HAVE_LDAP */

#define LDAP_DEFAULT_TIMEOUT   15
#define LDAP_CONNECTION_DEFAULT_TIMEOUT 2
#define LDAP_PAGE_SIZE 1024

#ifndef LDAP_OPT_SUCCESS
#define LDAP_OPT_SUCCESS 0
#endif

#define ADS_PAGE_CTL_OID 	"1.2.840.113556.1.4.319"

#endif	/* _SMBLDAP_H */