back-ldap.h

ldap服务器源码

/* back-ldap.h - ldap backend header file */
/* $OpenLDAP: pkg/ldap/servers/slapd/back-ldap/back-ldap.h,v 1.63.2.23 2007/01/27 23:56:43 ando Exp $ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
 *
 * Copyright 1999-2007 The OpenLDAP Foundation.
 * Portions Copyright 2000-2003 Pierangelo Masarati.
 * Portions Copyright 1999-2003 Howard Chu.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted only as authorized by the OpenLDAP
 * Public License.
 *
 * A copy of this license is available in the file LICENSE in the
 * top-level directory of the distribution or, alternatively, at
 * <http://www.OpenLDAP.org/license.html>.
 */
/* ACKNOWLEDGEMENTS:
 * This work was initially developed by the Howard Chu for inclusion
 * in OpenLDAP Software and subsequently enhanced by Pierangelo
 * Masarati.
 */

#ifndef SLAPD_LDAP_H
#define SLAPD_LDAP_H

LDAP_BEGIN_DECL

struct ldapinfo_t;

enum {
	/* even numbers are connection types */
	LDAP_BACK_PCONN_FIRST = 0,
	LDAP_BACK_PCONN_ROOTDN = LDAP_BACK_PCONN_FIRST,
	LDAP_BACK_PCONN_ANON = 2,
	LDAP_BACK_PCONN_BIND = 4,

	/* add the TLS bit */
	LDAP_BACK_PCONN_TLS = 0x1U,

	LDAP_BACK_PCONN_ROOTDN_TLS = (LDAP_BACK_PCONN_ROOTDN|LDAP_BACK_PCONN_TLS),
	LDAP_BACK_PCONN_ANON_TLS = (LDAP_BACK_PCONN_ANON|LDAP_BACK_PCONN_TLS),
	LDAP_BACK_PCONN_BIND_TLS = (LDAP_BACK_PCONN_BIND|LDAP_BACK_PCONN_TLS),

	LDAP_BACK_PCONN_LAST
};

typedef struct ldapconn_t {
	Connection		*lc_conn;
#define	LDAP_BACK_CONN2PRIV(lc)		((unsigned long)(lc)->lc_conn)
#define LDAP_BACK_PCONN_ISPRIV(lc)	((void *)(lc)->lc_conn >= (void *)LDAP_BACK_PCONN_FIRST \
						&& (void *)(lc)->lc_conn < (void *)LDAP_BACK_PCONN_LAST)
#define LDAP_BACK_PCONN_ISROOTDN(lc)	(LDAP_BACK_PCONN_ISPRIV((lc)) \
						&& (LDAP_BACK_CONN2PRIV((lc)) < LDAP_BACK_PCONN_ANON))
#define LDAP_BACK_PCONN_ISANON(lc)	(LDAP_BACK_PCONN_ISPRIV((lc)) \
						&& (LDAP_BACK_CONN2PRIV((lc)) < LDAP_BACK_PCONN_BIND) \
						&& (LDAP_BACK_CONN2PRIV((lc)) >= LDAP_BACK_PCONN_ANON))
#define LDAP_BACK_PCONN_ISBIND(lc)	(LDAP_BACK_PCONN_ISPRIV((lc)) \
						&& (LDAP_BACK_CONN2PRIV((lc)) >= LDAP_BACK_PCONN_BIND))
#define LDAP_BACK_PCONN_ISTLS(lc)	(LDAP_BACK_PCONN_ISPRIV((lc)) \
						&& (LDAP_BACK_CONN2PRIV((lc)) & LDAP_BACK_PCONN_TLS))
#define	LDAP_BACK_PCONN_ID(lc)		(LDAP_BACK_PCONN_ISPRIV((lc)) ? \
						( -1 - (long)(lc)->lc_conn ) : (lc)->lc_conn->c_connid )
#ifdef HAVE_TLS
#define	LDAP_BACK_PCONN_ROOTDN_SET(lc, op) \
	((lc)->lc_conn = (void *)((op)->o_conn->c_is_tls ? (void *) LDAP_BACK_PCONN_ROOTDN_TLS : (void *) LDAP_BACK_PCONN_ROOTDN))
#define	LDAP_BACK_PCONN_ANON_SET(lc, op) \
	((lc)->lc_conn = (void *)((op)->o_conn->c_is_tls ? (void *) LDAP_BACK_PCONN_ANON_TLS : (void *) LDAP_BACK_PCONN_ANON))
#define	LDAP_BACK_PCONN_BIND_SET(lc, op) \
	((lc)->lc_conn = (void *)((op)->o_conn->c_is_tls ? (void *) LDAP_BACK_PCONN_BIND_TLS : (void *) LDAP_BACK_PCONN_BIND))
#else /* ! HAVE_TLS */
#define	LDAP_BACK_PCONN_ROOTDN_SET(lc, op) \
	((lc)->lc_conn = (void *)LDAP_BACK_PCONN_ROOTDN)
#define	LDAP_BACK_PCONN_ANON_SET(lc, op) \
	((lc)->lc_conn = (void *)LDAP_BACK_PCONN_ANON)
#define	LDAP_BACK_PCONN_BIND_SET(lc, op) \
	((lc)->lc_conn = (void *)LDAP_BACK_PCONN_BIND)
#endif /* ! HAVE_TLS */
#define	LDAP_BACK_PCONN_SET(lc, op) \
	(BER_BVISEMPTY(&(op)->o_ndn) ? \
		LDAP_BACK_PCONN_ANON_SET((lc), (op)) : LDAP_BACK_PCONN_ROOTDN_SET((lc), (op)))

	LDAP			*lc_ld;
	struct berval		lc_cred;
	struct berval 		lc_bound_ndn;
	struct berval		lc_local_ndn;
	unsigned		lc_lcflags;
#define LDAP_BACK_CONN_ISSET_F(fp,f)	(*(fp) & (f))
#define	LDAP_BACK_CONN_SET_F(fp,f)	(*(fp) |= (f))
#define	LDAP_BACK_CONN_CLEAR_F(fp,f)	(*(fp) &= ~(f))
#define	LDAP_BACK_CONN_CPY_F(fp,f,mfp) \
	do { \
		if ( ((f) & *(mfp)) == (f) ) { \
			*(fp) |= (f); \
		} else { \
			*(fp) &= ~(f); \
		} \
	} while ( 0 )

#define LDAP_BACK_CONN_ISSET(lc,f)	LDAP_BACK_CONN_ISSET_F(&(lc)->lc_lcflags, (f))
#define	LDAP_BACK_CONN_SET(lc,f)	LDAP_BACK_CONN_SET_F(&(lc)->lc_lcflags, (f))
#define	LDAP_BACK_CONN_CLEAR(lc,f)	LDAP_BACK_CONN_CLEAR_F(&(lc)->lc_lcflags, (f))
#define	LDAP_BACK_CONN_CPY(lc,f,mlc)	LDAP_BACK_CONN_CPY_F(&(lc)->lc_lcflags, (f), &(mlc)->lc_lcflags)

/* 0xFFF00000U are reserved for back-meta */

#define	LDAP_BACK_FCONN_ISBOUND	(0x00000001U)
#define	LDAP_BACK_FCONN_ISANON	(0x00000002U)
#define	LDAP_BACK_FCONN_ISBMASK	(LDAP_BACK_FCONN_ISBOUND|LDAP_BACK_FCONN_ISANON)
#define	LDAP_BACK_FCONN_ISPRIV	(0x00000004U)
#define	LDAP_BACK_FCONN_ISTLS	(0x00000008U)
#define	LDAP_BACK_FCONN_BINDING	(0x00000010U)
#define	LDAP_BACK_FCONN_TAINTED	(0x00000020U)
#define	LDAP_BACK_FCONN_ABANDON	(0x00000040U)
#define	LDAP_BACK_FCONN_ISIDASR	(0x00000080U)
#define	LDAP_BACK_FCONN_CACHED	(0x00000100U)

#define	LDAP_BACK_CONN_ISBOUND(lc)		LDAP_BACK_CONN_ISSET((lc), LDAP_BACK_FCONN_ISBOUND)
#define	LDAP_BACK_CONN_ISBOUND_SET(lc)		LDAP_BACK_CONN_SET((lc), LDAP_BACK_FCONN_ISBOUND)
#define	LDAP_BACK_CONN_ISBOUND_CLEAR(lc)	LDAP_BACK_CONN_CLEAR((lc), LDAP_BACK_FCONN_ISBMASK)
#define	LDAP_BACK_CONN_ISBOUND_CPY(lc, mlc)	LDAP_BACK_CONN_CPY((lc), LDAP_BACK_FCONN_ISBOUND, (mlc))
#define	LDAP_BACK_CONN_ISANON(lc)		LDAP_BACK_CONN_ISSET((lc), LDAP_BACK_FCONN_ISANON)
#define	LDAP_BACK_CONN_ISANON_SET(lc)		LDAP_BACK_CONN_SET((lc), LDAP_BACK_FCONN_ISANON)
#define	LDAP_BACK_CONN_ISANON_CLEAR(lc)		LDAP_BACK_CONN_ISBOUND_CLEAR((lc))
#define	LDAP_BACK_CONN_ISANON_CPY(lc, mlc)	LDAP_BACK_CONN_CPY((lc), LDAP_BACK_FCONN_ISANON, (mlc))
#define	LDAP_BACK_CONN_ISPRIV(lc)		LDAP_BACK_CONN_ISSET((lc), LDAP_BACK_FCONN_ISPRIV)
#define	LDAP_BACK_CONN_ISPRIV_SET(lc)		LDAP_BACK_CONN_SET((lc), LDAP_BACK_FCONN_ISPRIV)
#define	LDAP_BACK_CONN_ISPRIV_CLEAR(lc)		LDAP_BACK_CONN_CLEAR((lc), LDAP_BACK_FCONN_ISPRIV)
#define	LDAP_BACK_CONN_ISPRIV_CPY(lc, mlc)	LDAP_BACK_CONN_CPY((lc), LDAP_BACK_FCONN_ISPRIV, (mlc))
#define	LDAP_BACK_CONN_ISTLS(lc)		LDAP_BACK_CONN_ISSET((lc), LDAP_BACK_FCONN_ISTLS)
#define	LDAP_BACK_CONN_ISTLS_SET(lc)		LDAP_BACK_CONN_SET((lc), LDAP_BACK_FCONN_ISTLS)
#define	LDAP_BACK_CONN_ISTLS_CLEAR(lc)		LDAP_BACK_CONN_CLEAR((lc), LDAP_BACK_FCONN_ISTLS)
#define	LDAP_BACK_CONN_ISTLS_CPY(lc, mlc)	LDAP_BACK_CONN_CPY((lc), LDAP_BACK_FCONN_ISTLS, (mlc))
#define	LDAP_BACK_CONN_BINDING(lc)		LDAP_BACK_CONN_ISSET((lc), LDAP_BACK_FCONN_BINDING)
#define	LDAP_BACK_CONN_BINDING_SET(lc)		LDAP_BACK_CONN_SET((lc), LDAP_BACK_FCONN_BINDING)
#define	LDAP_BACK_CONN_BINDING_CLEAR(lc)	LDAP_BACK_CONN_CLEAR((lc), LDAP_BACK_FCONN_BINDING)
#define	LDAP_BACK_CONN_TAINTED(lc)		LDAP_BACK_CONN_ISSET((lc), LDAP_BACK_FCONN_TAINTED)
#define	LDAP_BACK_CONN_TAINTED_SET(lc)		LDAP_BACK_CONN_SET((lc), LDAP_BACK_FCONN_TAINTED)
#define	LDAP_BACK_CONN_TAINTED_CLEAR(lc)	LDAP_BACK_CONN_CLEAR((lc), LDAP_BACK_FCONN_TAINTED)
#define	LDAP_BACK_CONN_ABANDON(lc)		LDAP_BACK_CONN_ISSET((lc), LDAP_BACK_FCONN_ABANDON)
#define	LDAP_BACK_CONN_ABANDON_SET(lc)		LDAP_BACK_CONN_SET((lc), LDAP_BACK_FCONN_ABANDON)
#define	LDAP_BACK_CONN_ABANDON_CLEAR(lc)	LDAP_BACK_CONN_CLEAR((lc), LDAP_BACK_FCONN_ABANDON)
#define	LDAP_BACK_CONN_ISIDASSERT(lc)		LDAP_BACK_CONN_ISSET((lc), LDAP_BACK_FCONN_ISIDASR)
#define	LDAP_BACK_CONN_ISIDASSERT_SET(lc)	LDAP_BACK_CONN_SET((lc), LDAP_BACK_FCONN_ISIDASR)
#define	LDAP_BACK_CONN_ISIDASSERT_CLEAR(lc)	LDAP_BACK_CONN_CLEAR((lc), LDAP_BACK_FCONN_ISIDASR)
#define	LDAP_BACK_CONN_ISIDASSERT_CPY(lc, mlc)	LDAP_BACK_CONN_CPY((lc), LDAP_BACK_FCONN_ISIDASR, (mlc))
#define	LDAP_BACK_CONN_CACHED(lc)		LDAP_BACK_CONN_ISSET((lc), LDAP_BACK_FCONN_CACHED)
#define	LDAP_BACK_CONN_CACHED_SET(lc)		LDAP_BACK_CONN_SET((lc), LDAP_BACK_FCONN_CACHED)
#define	LDAP_BACK_CONN_CACHED_CLEAR(lc)		LDAP_BACK_CONN_CLEAR((lc), LDAP_BACK_FCONN_CACHED)

	unsigned		lc_refcnt;
	unsigned		lc_flags;
	time_t			lc_create_time;
	time_t			lc_time;

	LDAP_TAILQ_ENTRY(ldapconn_t)	lc_q;
} ldapconn_t;

typedef struct ldap_avl_info_t {
	ldap_pvt_thread_mutex_t		lai_mutex;
	Avlnode				*lai_tree;
} ldap_avl_info_t;

typedef struct slap_retry_info_t {
	time_t		*ri_interval;
	int		*ri_num;
	int		ri_idx;
	int		ri_count;
	time_t		ri_last;

#define SLAP_RETRYNUM_FOREVER	(-1)		/* retry forever */
#define SLAP_RETRYNUM_TAIL	(-2)		/* end of retrynum array */
#define SLAP_RETRYNUM_VALID(n)	((n) >= SLAP_RETRYNUM_FOREVER)	/* valid retrynum */
#define SLAP_RETRYNUM_FINITE(n)	((n) > SLAP_RETRYNUM_FOREVER)	/* not forever */
} slap_retry_info_t;

/*
 * identity assertion modes
 */
typedef enum {
	LDAP_BACK_IDASSERT_LEGACY = 1,
	LDAP_BACK_IDASSERT_NOASSERT,
	LDAP_BACK_IDASSERT_ANONYMOUS,
	LDAP_BACK_IDASSERT_SELF,
	LDAP_BACK_IDASSERT_OTHERDN,
	LDAP_BACK_IDASSERT_OTHERID
} slap_idassert_mode_t;

/* ID assert stuff */
typedef struct slap_idassert_t {
	slap_idassert_mode_t	si_mode;
#define	li_idassert_mode	li_idassert.si_mode

	slap_bindconf	si_bc;
#define	li_idassert_authcID	li_idassert.si_bc.sb_authcId
#define	li_idassert_authcDN	li_idassert.si_bc.sb_binddn
#define	li_idassert_passwd	li_idassert.si_bc.sb_cred
#define	li_idassert_authzID	li_idassert.si_bc.sb_authzId
#define	li_idassert_authmethod	li_idassert.si_bc.sb_method
#define	li_idassert_sasl_mech	li_idassert.si_bc.sb_saslmech