/** Author: Carsten Grzemba grzemba@contac-dt.de>
 *
 * Copyright (C) 2011 contac Datentechnik GmbH
 *
 * 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; version 2 only
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 $Id: posix-winsync.c 40 2011-06-10 08:28:56Z grzemba $
 **/

/*
 * - AD needs for Posix attributes a NIS Domainname, this software expect a attribute nisDomain with the name in a upper container on DS side
 * - currently the winsync API has no callbacks for new created entries on DS side

 compile:
 gcc -g -shared -m64 -fPIC -c -D WINSYNC_TEST_POSIX \
               -I ../fedora-ds/ds/ldap/servers/slapd  \
               -I ../fedora-ds/ds/ldap/servers/plugins/replication \
               -I /usr/include/mps posix-winsync.c
 link:
 ld -G posix-winsync.o -o libposix-winsync.so

 configure DS with

 dn: cn=Posix Winsync API,cn=plugins,cn=config
 objectclass: top
 objectclass: nsSlapdPlugin
 objectclass: extensibleObject
 cn: Posix Winsync API
 nsslapd-pluginpath: libposix-winsync
 nsslapd-plugininitfunc: posix_winsync_plugin_init
 nsslapd-plugintype: preoperation
 nsslapd-pluginenabled: on
 nsslapd-plugin-depends-on-type: database
 nsslapd-pluginDescription: Sync Posix Attributes for users and groups between AD and DS if available and user lock/unlock
 nsslapd-pluginVendor: contac Datentechnik GmbH
 nsslapd-pluginId: posix-winsync-plugin
 nsslapd-pluginVersion: POSIX/1.0

 AFTER that make new replication aggrements

 for details see: Red_Hat_Directory_Server-8.2-Plug-in_Guide-en-US.pdf
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#ifdef WINSYNC_TEST_POSIX
#include <slapi-plugin.h>
#include "winsync-plugin.h"
#else
#include <dirsrv/slapi-plugin.h>
#include <dirsrv/winsync-plugin.h>
#endif
#include <plstr.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include "posix-wsp-ident.h"
#include "posix-group-func.h"

#define MEMBEROFTASK "memberuid task"
Slapi_Value **
valueset_get_valuearray(const Slapi_ValueSet *vs); /* stolen from proto-slap.h */
void *
posix_winsync_get_plugin_identity(void);
void *
posix_winsync_agmt_init(const Slapi_DN *ds_subtree, const Slapi_DN *ad_subtree);

/**
 * Plugin identifiers
 */
static Slapi_PluginDesc posix_winsync_pdesc =
    {"posix-winsync-plugin", VENDOR, DS_PACKAGE_VERSION,
     "Sync Posix Attributs for users and groups between AD and DS if available"};
typedef struct _windows_attr_map
{
    char *windows_attribute_name;
    char *ldap_attribute_name;
    int isMUST; /* schema: required attribute */
} windows_attribute_map;

static windows_attribute_map user_attribute_map[] = {
    {"unixHomeDirectory", "homeDirectory", 1},
    {"loginShell", "loginShell", 0},
    {"uidNumber", "uidNumber", 1},
    {"gidNumber", "gidNumber", 1},
    {"gecos", "gecos", 0},
    {NULL, NULL, 0}};

static windows_attribute_map user_mssfu_attribute_map[] =
    {{"msSFU30homedirectory", "homeDirectory", 1},
     {"msSFU30loginshell", "loginShell", 0},
     {"msSFU30uidnumber", "uidNumber", 1},
     {"msSFU30gidnumber", "gidNumber", 1},
     {"msSFU30gecos", "gecos", 0},
     {NULL, NULL, 0}};

/* memberUid must be first element or fixup in pre_ad_mod/add_group is required */
static windows_attribute_map group_attribute_map[] = {{"memberUid", "memberUid", 0},
                                                      {"gidNumber", "gidNumber", 1},
                                                      {NULL, NULL, 0}};

static windows_attribute_map group_mssfu_attribute_map[] = {{"msSFU30memberUid", "memberUid", 0},
                                                            {"msSFU30gidNumber", "gidNumber", 1},
                                                            {NULL, NULL, 0}};

static char *posix_winsync_plugin_name = POSIX_WINSYNC_PLUGIN_NAME;
static PRUint64 g_plugin_started = 0;

/*
 * We can not fully use the built in plugin counter in the posix-winsync plugin,
 * so we have to use our own.
 */
static Slapi_Counter *op_counter = NULL;

enum
{
    ACCT_DISABLE_INVALID, /* the invalid value */
    ACCT_DISABLE_NONE,    /* do not sync acct disable status */
    ACCT_DISABLE_TO_AD,   /* sync only from ds to ad */
    ACCT_DISABLE_TO_DS,   /* sync only from ad to ds */
    ACCT_DISABLE_BOTH
    /* bi-directional sync */
};

/*
 * Check if the given entry has account lock on (i.e. entry is disabled)
 * Mostly copied from check_account_lock in the server code.
 * Returns: 0 - account is disabled (lock == "true")
 *          1 - account is enabled (lock == "false" or empty)
 */
static int
_check_account_lock(Slapi_Entry *ds_entry, int *isvirt)
{
    int rc = 1;
    Slapi_ValueSet *values = NULL;
    int type_name_disposition = 0;
    char *actual_type_name = NULL;
    int attr_free_flags = 0;
    char *strval;

    if (isvirt) {
        *isvirt = 1; /* nsAccountLock is implemeted as nsRole */
    }
    /* first, see if the attribute is a "real" attribute */
    strval = (char*)slapi_entry_attr_get_ref(ds_entry, "nsAccountLock");
    if (strval) { /* value is real */
        if (isvirt) {
            *isvirt = 0; /* value is real */
        }
        rc = 1; /* default to enabled */
        if (PL_strncasecmp(strval, "true", 4) == 0) {
            rc = 0; /* account is disabled */
        }
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "<-- _check_account_lock - entry [%s] has real "
                      "attribute nsAccountLock and entry %s locked\n",
                      slapi_entry_get_dn_const(ds_entry), rc ? "is not" : "is");
        return rc;
    }

    rc = slapi_vattr_values_get(ds_entry, "nsAccountLock", &values, &type_name_disposition,
                                &actual_type_name, SLAPI_VIRTUALATTRS_REQUEST_POINTERS,
                                &attr_free_flags);
    if (rc == 0) {
        Slapi_Value *v = NULL;
        const struct berval *bvp = NULL;

        rc = 1; /* default is enabled */
        if (isvirt) {
            *isvirt = 1; /* value is virtual */
        }
        if ((slapi_valueset_first_value(values, &v) != -1) &&
            ((bvp = slapi_value_get_berval(v)) != NULL)) {
            if ((bvp != NULL) && (PL_strncasecmp(bvp->bv_val, "true", 4) == 0)) {
                slapi_vattr_values_free(&values, &actual_type_name, attr_free_flags);
                rc = 0; /* account is disabled */
            }
        }

        if (values != NULL) {
            slapi_vattr_values_free(&values, &actual_type_name, attr_free_flags);
        }
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "<-- _check_account_lock - entry [%s] has virtual "
                      "attribute nsAccountLock and entry %s locked\n",
                      slapi_entry_get_dn_const(ds_entry), rc ? "is not" : "is");
    } else {
        rc = 1; /* no attr == entry is enabled */
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "<-- _check_account_lock - entry [%s] does not "
                      "have attribute nsAccountLock - entry is not locked\n",
                      slapi_entry_get_dn_const(ds_entry));
    }

    return rc;
}

/*
 * This can be used either in the to ad direction or the to ds direction, since in both
 * cases we have to read both entries and compare the values.
 * ad_entry - entry from AD
 * ds_entry - entry from DS
 * direction - either ACCT_DISABLE_TO_AD or ACCT_DISABLE_TO_DS
 *
 * If smods is given, this is the list of mods to send in the given direction.  The
 * appropriate modify operation will be added to this list or changed to the correct
 * value if it already exists.
 * Otherwise, if a destination entry is given, the value will be written into
 * that entry.
 */
static void
sync_acct_disable(void *cbdata __attribute__((unused)), /* the usual domain config data */
                  const Slapi_Entry *ad_entry,          /* the AD entry */
                  Slapi_Entry *ds_entry,                /* the DS entry */
                  int direction,                        /* the direction - TO_AD or TO_DS */
                  Slapi_Entry *update_entry,            /* the entry to update for ADDs */
                  Slapi_Mods *smods,                    /* the mod list for MODIFYs */
                  int *do_modify                        /* if not NULL, set this to true if mods were added */
                  )
{
    int ds_is_enabled = 1; /* default to true */
    int ad_is_enabled = 1; /* default to true */
    uint64_t adval = 0;    /* raw account val from ad entry */
    int isvirt = 0;

    /* get the account lock state of the ds entry */
    if (0 == _check_account_lock(ds_entry, &isvirt)) {
        ds_is_enabled = 0;
    }
    if (isvirt)
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "<-- sync_acct_disable - %s DS nsaccountlock is virtual!!!!\n",
                      slapi_entry_get_dn_const(ds_entry));
    /* get the account lock state of the ad entry */
    adval = slapi_entry_attr_get_ulong(ad_entry, "UserAccountControl");
    if (adval & 0x2) {
        /* account is disabled */
        ad_is_enabled = 0;
    }

    if (ad_is_enabled == ds_is_enabled) { /* both have same value - nothing to do */
        return;
    }

    /* have to enable or disable */
    if (direction == ACCT_DISABLE_TO_AD) {
        unsigned long mask;
        /* set the mod or entry */
        if (ds_is_enabled) {
            mask = ~0x2;
            adval &= mask; /* unset the 0x2 disable bit */
        } else {
            mask = 0x2;
            adval |= mask; /* set the 0x2 disable bit */
        }
        if (update_entry) {
            slapi_entry_attr_set_ulong(update_entry, "userAccountControl", adval);
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "<-- sync_acct_disable - %s AD account [%s] - new value is [%" PRIu64 "]\n",
                          (ds_is_enabled) ? "enabled" : "disabled", slapi_entry_get_dn_const(update_entry), adval);
        } else {
            /* iterate through the mods - if there is already a mod
             for userAccountControl, change it - otherwise, add it */
            char acctvalstr[32];
            LDAPMod *mod = NULL;
            struct berval *mod_bval = NULL;
            for (mod = slapi_mods_get_first_mod(smods); mod; mod = slapi_mods_get_next_mod(smods)) {
                if (!PL_strcasecmp(mod->mod_type, "userAccountControl") && mod->mod_bvalues && mod->mod_bvalues[0]) {
                    mod_bval = mod->mod_bvalues[0];
                    /* mod_bval points directly to value inside mod list */
                    break;
                }
            }
            if (!mod_bval) { /* not found - add it */
                struct berval tmpbval = {0, NULL};
                Slapi_Mod *smod = slapi_mod_new();
                slapi_mod_init(smod, 1); /* one element */
                slapi_mod_set_type(smod, "userAccountControl");
                slapi_mod_set_operation(smod, LDAP_MOD_REPLACE | LDAP_MOD_BVALUES);
                slapi_mod_add_value(smod, &tmpbval);
                /* add_value makes a copy of the bval - so let's get a pointer
                 to that new value - we will change the bval in place */
                mod_bval = slapi_mod_get_first_value(smod);
                /* mod_bval points directly to value inside mod list */
                /* now add the new mod to smods */
                slapi_mods_add_ldapmod(smods, slapi_mod_get_ldapmod_passout(smod));
                /* smods now owns the ldapmod */
                slapi_mod_free(&smod);
                if (do_modify) {
                    *do_modify = 1; /* added mods */
                }
            }
            if (mod_bval) {
                /* this is where we set or update the actual value
                 mod_bval points directly into the mod list we are
                 sending */
                if (mod_bval->bv_val && (mod_bval->bv_len > 0)) {
                    /* get the old val */
                    adval = strtol(mod_bval->bv_val, NULL, 10);
                }
                if (ds_is_enabled) {
                    mask = ~0x2;
                    adval &= mask; /* unset the 0x2 disable bit */
                } else {
                    mask = 0x2;
                    adval |= mask; /* set the 0x2 disable bit */
                }
                PR_snprintf(acctvalstr, sizeof(acctvalstr), "%" PRIu64, adval);
                slapi_ch_free_string(&mod_bval->bv_val);
                mod_bval->bv_val = slapi_ch_strdup(acctvalstr);
                mod_bval->bv_len = strlen(acctvalstr);
            }
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "<-- sync_acct_disable - %s AD account [%s] - new value is [%" PRIu64 "]\n",
                          (ds_is_enabled) ? "enabled" : "disabled", slapi_entry_get_dn_const(ad_entry), adval);
        }
    }

    if (direction == ACCT_DISABLE_TO_DS) {
        char *attrtype = NULL;
        char *attrval;
        char *val = NULL;

        attrtype = (isvirt) ? "nsRoleDN" : "nsAccountLock";
        if (ad_is_enabled) {
            attrval = NULL; /* will delete the value */
        } else {
            if (isvirt) {
                val = slapi_create_dn_string("cn=nsManagedDisabledRole,%s",
                                             slapi_sdn_get_dn(posix_winsync_config_get_suffix()));
                attrval = val;
            } else {
                attrval = "true";
            }
        }

        if (update_entry) {
            slapi_entry_attr_set_charptr(update_entry, attrtype, attrval);
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "<-- sync_acct_disable - %s DS account [%s]\n", (ad_is_enabled)
                                                                              ? "enable"
                                                                              : "disable",
                          slapi_entry_get_dn_const(ds_entry));
        } else { /* do mod */
            Slapi_Mod *smod = slapi_mod_new();

            slapi_mod_init(smod, 1); /* one element */
            slapi_mod_set_type(smod, attrtype);
            if (attrval == NULL) {
                slapi_mod_set_operation(smod, LDAP_MOD_DELETE | LDAP_MOD_BVALUES);
            } else {
                Slapi_Value *v = NULL;
                v = slapi_value_new_string(attrval);
                slapi_mod_set_operation(smod, LDAP_MOD_REPLACE | LDAP_MOD_BVALUES);
                slapi_mod_add_value(smod, slapi_value_get_berval(v));
                slapi_value_free(&v);
            }
            slapi_mods_add_ldapmod(smods, slapi_mod_get_ldapmod_passout(smod));
            slapi_mod_free(&smod);

            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "<-- sync_acct_disable - %s DS account [%s]\n", (ad_is_enabled)
                                                                              ? "enable"
                                                                              : "disable",
                          slapi_entry_get_dn_const(ds_entry));
            if (do_modify) {
                *do_modify = 1; /* added mods */
            }
        }
        slapi_ch_free_string(&val);
    }
    return;
}

#if 0
/*
 * attr_compare_equal provided in
 * https://fedorahosted.org/389/attachment/ticket/47763/0025-posix-winsync.rawentry.patch
 * Since there is no strong reason to switch to this new attr_compare_equal,
 * continue using the original code.
 */
/*
 * Compare the first value of attr a and b.
 *
 * If the sizes of each value are equal AND the first values match, return TRUE.
 * Otherwise, return FALSE.
 *
 * NOTE: For now only handle single values
 */
static int
attr_compare_equal(Slapi_Attr *a, Slapi_Attr *b)
{
    /* For now only handle single values */
    Slapi_Value *va = NULL;
    Slapi_Value *vb = NULL;
    int num_a = 0;
    int num_b = 0;
    int match = 1;

    slapi_attr_get_numvalues(a, &num_a);
    slapi_attr_get_numvalues(b, &num_b);

    if (num_a == num_b) {
        slapi_attr_first_value(a, &va);
        slapi_attr_first_value(b, &vb);

        /* If either val is less than n, then check if the length, then values are
         * equal.  If both are n or greater, then only compare the first n chars.
         * If n is 0, then just compare the entire attribute. */
        if (slapi_value_get_length(va) == slapi_value_get_length(vb)) {
            if (slapi_attr_value_find(b, slapi_value_get_berval(va)) != 0) {
                match = 0;
            }
        } else {
            match = 0;
        }
    } else {
        match = 0;
    }
    return match;
}
#else /* Original code */
/* Returns non-zero if the attribute value sets are identical.  */
static int
attr_compare_equal(Slapi_Attr *a, Slapi_Attr *b)
{
    int i = 0;
    Slapi_Value *va = NULL;

    /* Iterate through values in attr a and search for each in attr b */
    for (i = slapi_attr_first_value(a, &va); va && (i != -1); i = slapi_attr_next_value(a, i, &va)) {

        /* Compare the entire attribute value */
        if (slapi_attr_value_find(b, slapi_value_get_berval(va)) != 0) {
            return 0;
        }
    }
    return 1;
}
#endif

/* look in the parent nodes of ds_entry for nis domain entry */
char *
getNisDomainName(const Slapi_Entry *ds_entry)
{
    Slapi_DN *entry_sdn = slapi_entry_get_sdn((Slapi_Entry *)ds_entry);
    Slapi_DN *subtree_sdn = slapi_sdn_new();
    char *type_NisDomain = "nisDomain";
    Slapi_PBlock *pb;
    Slapi_DN *childparent = slapi_sdn_new();
    char *nisdomainname = NULL;
    Slapi_Entry *entry = NULL;
    int rc = -1;

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name, "getNisDomainName start DN:%s\n",
                  slapi_sdn_get_dn(entry_sdn));
    /* search NIS domain name */
    slapi_sdn_get_parent(entry_sdn, subtree_sdn);
    pb = slapi_pblock_new();
    do {
        char *nisDomainAttr[] = {type_NisDomain, NULL};

        slapi_sdn_get_parent(subtree_sdn, childparent);
        if (slapi_sdn_isempty(childparent)) {
            rc = -1;
            break;
        }
        rc = slapi_search_internal_get_entry(childparent, nisDomainAttr, &entry,
                                             posix_winsync_get_plugin_identity());
        if (rc == 0) {
            if (rc == 0 && entry) {
                nisdomainname = slapi_entry_attr_get_charptr(entry, type_NisDomain);
                if (nisdomainname != NULL) {
                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "getNisDomainName NisDomain %s found in DN:%s\n",
                                  nisdomainname, slapi_sdn_get_dn(childparent));
                    break;
                }
            }
        }
        slapi_sdn_copy(childparent, subtree_sdn);
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "getNisDomainName iterate DN:%s\n", slapi_sdn_get_dn(subtree_sdn));
        slapi_entry_free(entry);
        entry = NULL;
    } while (PR_TRUE);
    slapi_pblock_destroy(pb);

    if (rc != 0 || nisdomainname == NULL) {
        slapi_log_err(SLAPI_LOG_REPL, posix_winsync_plugin_name,
                      "getNisDomainName: no nisdomainname found in %s, LDAP Err%d\n",
                      slapi_sdn_get_dn(subtree_sdn), rc);
    }
    slapi_sdn_free(&childparent);
    slapi_entry_free(entry);
    entry = NULL;
    slapi_sdn_free(&subtree_sdn);
    return nisdomainname;
}

static int
addNisDomainName(Slapi_Mod *smod, const Slapi_Entry *ds_entry)
{
    int rc = LDAP_SUCCESS;
    char *nisdomainname = getNisDomainName(ds_entry);

    if (nisdomainname == NULL) {
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "addNisDomainName NisDomain not found\n");
        rc = LDAP_NO_SUCH_ATTRIBUTE;
    } else {
        struct berval bval;

        slapi_mod_init(smod, 1);
        slapi_mod_set_type(smod, "msSFU30NisDomain");
        slapi_mod_set_operation(smod, LDAP_MOD_REPLACE | LDAP_MOD_BVALUES);
        bval.bv_val = nisdomainname;
        bval.bv_len = sizeof(nisdomainname);
        slapi_mod_add_value(smod, &bval);

        if (slapi_is_loglevel_set(SLAPI_LOG_PLUGIN))
            slapi_mod_dump((LDAPMod *)slapi_mod_get_ldapmod_byref(smod), 0);
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "addNisDomainName NisDomain %s found\n", nisdomainname);
        slapi_ch_free_string(&nisdomainname); /* allocated by slapi_entry_attr_getchrptr */
    }
    return rc;
}

static void
posix_winsync_dirsync_search_params_cb(void *cbdata __attribute__((unused)),
                                       const char *agmt_dn __attribute__((unused)),
                                       char **base __attribute__((unused)),
                                       int *scope __attribute__((unused)),
                                       char **filter __attribute__((unused)),
                                       char ***attrs __attribute__((unused)),
                                       LDAPControl ***serverctrls __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_dirsync_search_params_cb -- begin\n");

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_dirsync_search_params_cb -- end\n");

    return;
}

/* called before searching for a single entry from AD - agmt_dn will be NULL */
static void
posix_winsync_pre_ad_search_cb(void *cbdata __attribute__((unused)),
                               const char *agmt_dn __attribute__((unused)),
                               char **base __attribute__((unused)),
                               int *scope __attribute__((unused)),
                               char **filter __attribute__((unused)),
                               char ***attrs __attribute__((unused)),
                               LDAPControl ***serverctrls __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_pre_ad_search_cb -- begin\n");

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_pre_ad_search_cb -- end\n");

    return;
}

/* called before an internal search to get a single DS entry - agmt_dn will be NULL */
static void
posix_winsync_pre_ds_search_entry_cb(void *cbdata __attribute__((unused)),
                                     const char *agmt_dn __attribute__((unused)),
                                     char **base,
                                     int *scope,
                                     char **filter,
                                     char ***attrs __attribute__((unused)),
                                     LDAPControl ***serverctrls __attribute__((unused)))
{
    /*
     char *tmpbase=slapi_ch_strdup(*base);
     char *d = *base;
     char *s = tmpbase;
     int i=0;
     */
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name, "--> _pre_ds_search_cb -- begin\n");
    /* skip the first subtree container ou=xyz, */
    /*    if (strlen(*base) > 3) {
     s++;
     while(*s !='\0'){
     if (((*(s) == ',') || (*(s) == ';' )) && (*((s)-1) != '\\')){
     s++;
     while(*s !='\0'){
     *d++ = *s++;
     }
     *d='\0';
     break;
     }
     s++;
     }
     }
     */
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "-- _pre_ds_search_cb - base [%s] "
                  "scope [%d] filter [%s]\n",
                  *base, *scope, *filter);
    /*    slapi_ch_free_string(&tmpbase); */
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name, "<-- _pre_ds_search_cb -- end\n");
    return;
}

/* called before the total update to get all entries from the DS to sync to AD */
static void
posix_winsync_pre_ds_search_all_cb(void *cbdata __attribute__((unused)),
                                   const char *agmt_dn __attribute__((unused)),
                                   char **base __attribute__((unused)),
                                   int *scope __attribute__((unused)),
                                   char **filter,
                                   char ***attrs __attribute__((unused)),
                                   LDAPControl ***serverctrls __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_pre_ds_search_all_cb -- orig filter [%s] -- begin\n",
                  ((filter && *filter) ? *filter : "NULL"));

    /*    slapi_ch_free_string(filter);
     *filter = slapi_ch_strdup("(|(objectclass=posixaccount)(objectclass=posixgroup))");
     */
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_pre_ds_search_all_cb -- end\n");

    return;
}

static void
posix_winsync_pre_ad_mod_user_cb(void *cbdata, const Slapi_Entry *rawentry, Slapi_Entry *ad_entry, Slapi_Entry *ds_entry, Slapi_Mods *smods, int *do_modify)
{
    LDAPMod *mod = NULL;
    int rc = 0;
    Slapi_Attr *attr = NULL;
    windows_attribute_map *attr_map = user_attribute_map;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_pre_ad_mod_user_cb -- begin DS account [%s]\n",
                  slapi_entry_get_dn_const(ds_entry));
    if (posix_winsync_config_get_msSFUSchema()) {
        attr_map = user_mssfu_attribute_map;
    }

    /* called if init Replica: add nisDomain, uidnumber, ... if avail */
    for (rc = slapi_entry_first_attr(ds_entry, &attr); rc == 0;
         rc = slapi_entry_next_attr(ds_entry, attr, &attr)) {
        char *type = NULL;

        size_t i = 0;

        slapi_attr_get_type(attr, &type);
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "_pre_ad_mod_user_cb -- check modify type %s\n", type);
        for (; attr_map[i].windows_attribute_name != NULL; i++) {
            if (0 == slapi_attr_type_cmp(type, attr_map[i].ldap_attribute_name,
                                         SLAPI_TYPE_CMP_SUBTYPE)) {
                Slapi_Attr *ad_attr = NULL;
                Slapi_ValueSet *vs = NULL;
                char *ad_type = NULL;
                int is_present_local;

                slapi_attr_get_valueset(attr, &vs);
                ad_type = slapi_ch_strdup(attr_map[i].windows_attribute_name);
                slapi_entry_attr_find(ad_entry, ad_type, &ad_attr);
                is_present_local = (NULL == ad_attr) ? 0 : 1;
                if (is_present_local) {
                    int values_equal = 0;
                    values_equal = attr_compare_equal(attr, ad_attr);
                    if (!values_equal) {
                        slapi_log_err(SLAPI_LOG_PLUGIN,
                                      posix_winsync_plugin_name,
                                      "_pre_ad_mod_user_cb -- update mods: %s, %s : values are different -> modify\n",
                                      slapi_sdn_get_dn(slapi_entry_get_sdn_const(ds_entry)),
                                      ad_type);

                        slapi_mods_add_mod_values(smods, LDAP_MOD_REPLACE, ad_type,
                                                  valueset_get_valuearray(vs));
                        *do_modify = 1;
                    }
                } else {
                    slapi_mods_add_mod_values(smods, LDAP_MOD_ADD, ad_type,
                                              valueset_get_valuearray(vs));
                    if (0 == slapi_attr_type_cmp(type, "uidNumber", SLAPI_TYPE_CMP_SUBTYPE)) {
                        Slapi_Mod *mysmod = slapi_mod_new();
                        addNisDomainName(mysmod, ds_entry);
                        slapi_mods_add_ldapmod(smods, slapi_mod_get_ldapmod_passout(mysmod));
                        slapi_mod_free(&mysmod);
                    }
                    *do_modify = 1;
                }
                slapi_ch_free((void **)&ad_type);
                slapi_valueset_free(vs);

                slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                              "_pre_ad_mod_user_cb -- add modify %s DS account [%s]\n",
                              attr_map[i].windows_attribute_name,
                              slapi_entry_get_dn_const(ds_entry));
            }
        }
        if (0 == slapi_attr_type_cmp(type, "nsAccountLock", SLAPI_TYPE_CMP_SUBTYPE))
            sync_acct_disable(cbdata, rawentry, ds_entry, ACCT_DISABLE_TO_AD, NULL, smods,
                              do_modify);
    }
    if (slapi_is_loglevel_set(SLAPI_LOG_PLUGIN)) {
        for (mod = slapi_mods_get_first_mod(smods); mod; mod = slapi_mods_get_next_mod(smods)) {
            slapi_mod_dump(mod, 0);
        }
    }
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_pre_ad_mod_user_cb -- end\n");

    return;
}

static void
posix_winsync_pre_ad_mod_group_cb(void *cbdata __attribute__((unused)),
                                  const Slapi_Entry *rawentry __attribute__((unused)),
                                  Slapi_Entry *ad_entry,
                                  Slapi_Entry *ds_entry,
                                  Slapi_Mods *smods,
                                  int *do_modify)
{
    LDAPMod *mod = NULL;
    int rc = 0;
    Slapi_Attr *attr = NULL;
    windows_attribute_map *attr_map = group_attribute_map;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    if (posix_winsync_config_get_msSFUSchema())
        attr_map = group_mssfu_attribute_map;

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> _pre_ad_mod_group_cb -- begin DS account [%s]\n",
                  slapi_entry_get_dn_const(ds_entry));

    /* called if init Replica: add nisDomain, gidnumber, memberuid, if avail */
    for (rc = slapi_entry_first_attr(ds_entry, &attr); rc == 0;
         rc = slapi_entry_next_attr(ds_entry, attr, &attr)) {
        char *type = NULL;
        size_t i = 0;

        slapi_attr_get_type(attr, &type);
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "_pre_ad_mod_group_cb -- check modify type %s\n", type);
        for (; attr_map[i].windows_attribute_name != NULL; i++) {
            if (0 == slapi_attr_type_cmp(type, attr_map[i].ldap_attribute_name,
                                         SLAPI_TYPE_CMP_SUBTYPE)) {
                Slapi_Attr *ad_attr = NULL;
                Slapi_ValueSet *vs = NULL;
                char *ad_type = NULL;
                int is_present_local;

                if (i == 0) { /* memberUid */
                    Slapi_Attr *dsmuid_attr = NULL;
                    Slapi_Value *v = NULL;
                    slapi_entry_attr_find(ds_entry, "dsonlymemberuid", &dsmuid_attr);

                    if (dsmuid_attr) {
                        Slapi_ValueSet *dsmuid_vs = NULL;
                        slapi_attr_get_valueset(dsmuid_attr, &dsmuid_vs);
                        if (dsmuid_vs) {
                            vs = slapi_valueset_new();

                            int j;
                            for (j = slapi_attr_first_value(attr, &v); j != -1;
                                 j = slapi_attr_next_value(attr, i, &v)) {
                                /* If dsOnlyMemberUid matches memberUid, add it to AD */
                                if (slapi_valueset_find(dsmuid_attr, dsmuid_vs, v)) {
                                    slapi_valueset_add_value(vs, v);
                                }
                            }

                            slapi_valueset_free(dsmuid_vs);
                            dsmuid_vs = NULL;
                        }
                    }
                }

                if (!vs) {
                    slapi_attr_get_valueset(attr, &vs);
                }

                ad_type = slapi_ch_strdup(attr_map[i].windows_attribute_name);
                slapi_entry_attr_find(ad_entry, ad_type, &ad_attr);
                is_present_local = (NULL == ad_attr) ? 0 : 1;
                if (is_present_local) {
                    int values_equal = 0;
                    values_equal = attr_compare_equal(attr, ad_attr);
                    if (!values_equal) {
                        slapi_log_err(SLAPI_LOG_PLUGIN,
                                      posix_winsync_plugin_name,
                                      "_pre_ad_mod_group_cb -- update mods: %s, %s : values are different -> modify\n",
                                      slapi_sdn_get_dn(slapi_entry_get_sdn_const(ds_entry)),
                                      ad_type);

                        slapi_mods_add_mod_values(smods, LDAP_MOD_REPLACE, ad_type,
                                                  valueset_get_valuearray(vs));
                        *do_modify = 1;
                    }
                } else if (!slapi_valueset_isempty(vs)) {
                    slapi_mods_add_mod_values(smods, LDAP_MOD_ADD, ad_type,
                                              valueset_get_valuearray(vs));
                    if (0 == slapi_attr_type_cmp(type, "gidNumber", SLAPI_TYPE_CMP_SUBTYPE)) {
                        Slapi_Mod *mysmod = slapi_mod_new();
                        addNisDomainName(mysmod, ds_entry);
                        slapi_mods_add_ldapmod(smods, slapi_mod_get_ldapmod_passout(mysmod));
                        slapi_mod_free(&mysmod);
                    }
                    *do_modify = 1;
                }
                slapi_ch_free((void **)&ad_type);
                slapi_valueset_free(vs);

                slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                              "_pre_ad_mod_group_cb -- add modify %s DS account [%s]\n",
                              attr_map[i].windows_attribute_name,
                              slapi_entry_get_dn_const(ds_entry));
            }
        }
    }
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name, "_pre_ad_mod_group_cb -- step\n");
    if (slapi_is_loglevel_set(SLAPI_LOG_PLUGIN)) {
        for (mod = slapi_mods_get_first_mod(smods); mod; mod = slapi_mods_get_next_mod(smods)) {
            slapi_mod_dump(mod, 0);
        }
    }
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- _pre_ad_mod_group_cb -- end\n");

    return;
}

static void
posix_winsync_pre_ds_mod_user_cb(void *cbdata,
                                 const Slapi_Entry *rawentry __attribute__((unused)),
                                 Slapi_Entry *ad_entry,
                                 Slapi_Entry *ds_entry,
                                 Slapi_Mods *smods,
                                 int *do_modify)
{
    LDAPMod *mod = NULL;
    Slapi_Attr *attr = NULL;
    int is_present_local = 0;
    int do_modify_local = 0;
    int rc;
    int i;
    windows_attribute_map *attr_map = user_attribute_map;
    PRBool posixval = PR_TRUE;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> _pre_ds_mod_user_cb -- begin\n");

    if ((NULL == ad_entry) || (NULL == ds_entry)) {
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "<-- _pre_ds_mod_user_cb -- Empty %s entry.\n",
                      (NULL == ad_entry) ? "ad entry" : "ds entry");
        plugin_op_finished();
        return;
    }

    if (posix_winsync_config_get_msSFUSchema())
        attr_map = user_mssfu_attribute_map;

    /* check all of the required attributes are in the ad_entry:
     * MUST (cn $ uid $ uidNumber $ gidNumber $ homeDirectory).
     * If any of the required attributes are missing, drop them before adding
     * the entry to the DS. */
    for (i = 0; attr_map[i].windows_attribute_name != NULL; i++) {
        Slapi_Attr *pa_attr;
        if (attr_map[i].isMUST &&
            slapi_entry_attr_find(ad_entry,
                                  attr_map[i].windows_attribute_name,
                                  &pa_attr)) {
            /* required attribute does not exist */
            posixval = PR_FALSE;
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "AD entry %s does not have required attribute %s for posixAccount objectclass.\n",
                          slapi_entry_get_dn_const(ad_entry),
                          attr_map[i].ldap_attribute_name);
        }
    }

    /* add objectclass: posixAccount, uidnumber ,gidnumber ,homeDirectory, loginshell */
    /* in the ad to ds case we have no changelog, so we have to compare the entries */
    for (rc = slapi_entry_first_attr(ad_entry, &attr); rc == 0;
         rc = slapi_entry_next_attr(ad_entry, attr, &attr)) {
        char *type = NULL;

        slapi_attr_get_type(attr, &type);
        for (i = 0; attr_map[i].windows_attribute_name != NULL; i++) {
            if (0 == slapi_attr_type_cmp(type, attr_map[i].windows_attribute_name,
                                         SLAPI_TYPE_CMP_SUBTYPE)) {
                Slapi_Attr *local_attr = NULL;
                char *local_type = NULL;
                Slapi_ValueSet *vs = NULL;

                slapi_attr_get_valueset(attr, &vs);
                local_type = slapi_ch_strdup(attr_map[i].ldap_attribute_name);
                slapi_entry_attr_find(ds_entry, local_type, &local_attr);
                is_present_local = (NULL == local_attr) ? 0 : 1;
                if (is_present_local) {
                    /* DS entry has the posix attrs.
                     * I.e., it is a posix account*/
                    int values_equal = 0;
                    posixval = PR_TRUE;
                    values_equal = attr_compare_equal(attr, local_attr);
                    if (!values_equal) {
                        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                      "_pre_ds_mod_user_cb -- update mods: %s, %s : values are different -> modify\n",
                                      slapi_sdn_get_dn(slapi_entry_get_sdn_const(ds_entry)),
                                      local_type);

                        slapi_mods_add_mod_values(smods, LDAP_MOD_REPLACE, local_type,
                                                  valueset_get_valuearray(vs));
                        *do_modify = 1;
                    }
                } else if (posixval) {
                    /* only if AD provides the all necessary attributes */
                    slapi_mods_add_mod_values(smods, LDAP_MOD_ADD, local_type,
                                              valueset_get_valuearray(vs));
                    *do_modify = do_modify_local = 1;
                }
                slapi_valueset_free(vs);
                slapi_ch_free((void **)&local_type);
                /* what about if delete all values on windows ????? */
            }
        }
    }
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- _pre_ds_mod_user_cb present %d modify %d isPosixaccount %s\n",
                  is_present_local, do_modify_local,
                  posixval ? "yes" : "no");

    if (!is_present_local && do_modify_local && posixval) {
        Slapi_Attr *oc_attr = NULL;
        Slapi_Value *voc = slapi_value_new();

        slapi_value_init_string(voc, "posixAccount");
        rc = slapi_entry_attr_find(ds_entry, "objectClass", &oc_attr);
        if (rc == 0) {
            const struct berval *bv = slapi_value_get_berval(voc);
            if (bv && slapi_attr_value_find(oc_attr, bv) != 0) {
                Slapi_ValueSet *oc_vs = slapi_valueset_new();
                Slapi_Value *oc_nv = slapi_value_new();

                slapi_attr_get_valueset(oc_attr, &oc_vs);
                slapi_value_init_string(oc_nv, "posixAccount");
                slapi_valueset_add_value(oc_vs, oc_nv);
                slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                              "<-- _pre_ds_mod_user_cb add oc:posixAccount\n");

                slapi_value_init_string(voc, "shadowAccount");
                if (slapi_attr_value_find(oc_attr, slapi_value_get_berval(voc)) != 0) {
                    Slapi_Value *oc_nv = slapi_value_new();

                    slapi_value_init_string(oc_nv, "shadowAccount");
                    slapi_valueset_add_value(oc_vs, oc_nv);
                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "<-- _pre_ds_mod_user_cb add oc:shadowAccount\n");
                }
                slapi_mods_add_mod_values(smods, LDAP_MOD_REPLACE, "objectClass",
                                          valueset_get_valuearray(oc_vs));
                slapi_value_free(&oc_nv);
                slapi_valueset_free(oc_vs);

                if (posix_winsync_config_get_mapNestedGrouping()) {
                    memberUidLock();
                    addUserToGroupMembership(ds_entry);
                    memberUidUnlock();
                }
            }
        }
        slapi_value_free(&voc);
    }
    sync_acct_disable(cbdata, ad_entry, ds_entry, ACCT_DISABLE_TO_DS, NULL, smods, do_modify);
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name, "<-- _pre_ds_mod_user_cb %s %s\n",
                  slapi_sdn_get_dn(slapi_entry_get_sdn_const(ds_entry)), (do_modify) ? "modified"
                                                                                     : "not modified");

    if (slapi_is_loglevel_set(SLAPI_LOG_PLUGIN)) {
        for (mod = slapi_mods_get_first_mod(smods); mod; mod = slapi_mods_get_next_mod(smods)) {
            slapi_mod_dump(mod, 0);
        }
    }
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name, "<-- _pre_ds_mod_user_cb -- end\n");

    return;
}

static void
posix_winsync_pre_ds_mod_group_cb(void *cbdata __attribute__((unused)),
                                  const Slapi_Entry *rawentry __attribute__((unused)),
                                  Slapi_Entry *ad_entry,
                                  Slapi_Entry *ds_entry,
                                  Slapi_Mods *smods,
                                  int *do_modify)
{
    LDAPMod *mod = NULL;
    Slapi_Attr *attr = NULL;
    int is_present_local = 0;
    int do_modify_local = 0;
    int rc;
    windows_attribute_map *attr_map = group_attribute_map;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    if (posix_winsync_config_get_msSFUSchema())
        attr_map = group_mssfu_attribute_map;

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> _pre_ds_mod_group_cb -- begin\n");
    /* in the ad to ds case we have no changelog, so we have to compare the entries */
    for (rc = slapi_entry_first_attr(ad_entry, &attr); rc == 0; rc = slapi_entry_next_attr(ad_entry, attr, &attr)) {
        char *type = NULL;
        Slapi_ValueSet *vs = NULL;
        size_t i = 0;

        slapi_attr_get_type(attr, &type);
        for (; attr_map[i].windows_attribute_name != NULL; i++) {
            if (0 == slapi_attr_type_cmp(type, attr_map[i].windows_attribute_name,
                                         SLAPI_TYPE_CMP_SUBTYPE)) {
                Slapi_Attr *local_attr = NULL;
                char *local_type = NULL;

                slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                              "_pre_ds_mod_group_cb -- found AD attr %s\n", type);
                slapi_attr_get_valueset(attr, &vs);
                local_type = slapi_ch_strdup(attr_map[i].ldap_attribute_name);
                slapi_entry_attr_find(ds_entry, local_type, &local_attr);
                is_present_local = (NULL == local_attr) ? 0 : 1;
                if (is_present_local) {
                    int values_equal = 0;
                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "_pre_ds_mod_group_cb -- compare with DS attr %s\n", local_type);
                    values_equal = attr_compare_equal(attr, local_attr);
                    if (!values_equal) {
                        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                      "_pre_ds_mod_group_cb -- update mods: %s, %s : values are different -> modify\n",
                                      slapi_sdn_get_dn(slapi_entry_get_sdn_const(ds_entry)),
                                      local_type);

                        slapi_mods_add_mod_values(smods, LDAP_MOD_REPLACE, local_type,
                                                  valueset_get_valuearray(vs));
                        *do_modify = 1;
                    }
                } else {
                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "_pre_ds_mod_group_cb --  add attr\n");

                    slapi_mods_add_mod_values(smods, LDAP_MOD_ADD, local_type,
                                              valueset_get_valuearray(vs));
                    *do_modify = do_modify_local = 1;
                }
                slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                              "_pre_ds_mod_group_cb -- values compared\n");

                slapi_ch_free((void **)&local_type);
                slapi_valueset_free(vs);
                /* what about if delete all values on windows ???? */
            }
        }
    }
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "_pre_ds_mod_group_cb present %d modify %d before\n", is_present_local,
                  do_modify_local);

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "_pre_ds_mod_group_cb present %d modify %d\n", is_present_local,
                  do_modify_local);

    if (!is_present_local && do_modify_local) {
        Slapi_Attr *oc_attr = NULL;
        Slapi_Value *voc = slapi_value_new();

        slapi_value_init_string(voc, "posixGroup");
        slapi_entry_attr_find(ds_entry, "objectClass", &oc_attr);
        if (oc_attr && slapi_attr_value_find(oc_attr, slapi_value_get_berval(voc)) != 0) {
            Slapi_ValueSet *oc_vs = NULL;
            Slapi_Value *oc_nv = slapi_value_new();

            slapi_attr_get_valueset(oc_attr, &oc_vs);
            slapi_value_init_string(oc_nv, "posixGroup");
            slapi_valueset_add_value(oc_vs, oc_nv);
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "_pre_ds_mod_group_cb add oc:posixGroup\n");
            slapi_mods_add_mod_values(smods, LDAP_MOD_REPLACE, "objectClass",
                                      valueset_get_valuearray(oc_vs));
            slapi_value_free(&oc_nv);
            slapi_valueset_free(oc_vs);
        }
        slapi_value_free(&voc);
    }
    if (posix_winsync_config_get_mapMemberUid() || posix_winsync_config_get_mapNestedGrouping()) {
        memberUidLock();
        modGroupMembership(ds_entry, smods, do_modify, do_modify_local);
        memberUidUnlock();
    }

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name, "_pre_ds_mod_group_cb step\n");
    if (slapi_is_loglevel_set(SLAPI_LOG_PLUGIN)) {
        for (mod = slapi_mods_get_first_mod(smods); mod; mod = slapi_mods_get_next_mod(smods)) {
            slapi_mod_dump(mod, 0);
        }
    }
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- _pre_ds_mod_group_cb -- end\n");

    return;
}

static void
posix_winsync_pre_ds_add_user_cb(void *cbdata,
                                 const Slapi_Entry *rawentry __attribute__((unused)),
                                 Slapi_Entry *ad_entry,
                                 Slapi_Entry *ds_entry)
{
    Slapi_Attr *attr = NULL;
    char *type = NULL;
    PRBool posixval = PR_TRUE;
    windows_attribute_map *attr_map = user_attribute_map;
    int i = 0;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    if (posix_winsync_config_get_msSFUSchema())
        attr_map = user_mssfu_attribute_map;

    /* add objectclass: posixAccount, uidnumber, gidnumber, homeDirectory, loginShell */
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> _pre_ds_add_user_cb -- begin\n");

    /* check all of the required attributes are in the ad_entry:
     * MUST (cn $ uid $ uidNumber $ gidNumber $ homeDirectory).
     * If any of the required attributes are missing, drop them before adding
     * the entry to the DS. */
    for (i = 0; attr_map[i].windows_attribute_name != NULL; i++) {
        Slapi_Attr *pa_attr;
        if (attr_map[i].isMUST &&
            slapi_entry_attr_find(ad_entry,
                                  attr_map[i].windows_attribute_name,
                                  &pa_attr)) {
            /* required attribute does not exist */
            posixval = PR_FALSE;
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "AD entry %s does not have required attribute %s for posixAccount objectclass.\n",
                          slapi_entry_get_dn_const(ad_entry),
                          attr_map[i].ldap_attribute_name);
        }
    }

    /* converts the AD attributes to DS posix attribute if all the posix
     * required attributes are available */
    if (posixval) {
        int rc;
        for (slapi_entry_first_attr(ad_entry, &attr); attr;
             slapi_entry_next_attr(ad_entry, attr, &attr)) {

            slapi_attr_get_type(attr, &type);
            if (!type) {
                continue;
            }

            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "--> _pre_ds_add_user_cb -- "
                          "look for [%s] to new entry [%s]\n",
                          type, slapi_entry_get_dn_const(ds_entry));
            for (i = 0; attr_map[i].windows_attribute_name != NULL; i++) {
                if (slapi_attr_type_cmp(attr_map[i].windows_attribute_name,
                                        type, SLAPI_TYPE_CMP_SUBTYPE) == 0) {
                    Slapi_ValueSet *svs = NULL;
                    slapi_attr_get_valueset(attr, &svs);
                    slapi_entry_add_valueset(ds_entry,
                                             attr_map[i].ldap_attribute_name, svs);
                    slapi_valueset_free(svs);

                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "--> _pre_ds_add_user_cb -- "
                                  "adding val for [%s] to new entry [%s]\n",
                                  type, slapi_entry_get_dn_const(ds_entry));
                }
            }
        }
        rc = slapi_entry_add_string(ds_entry, "objectClass", "posixAccount");
        rc |= slapi_entry_add_string(ds_entry, "objectClass", "shadowAccount");
        rc |= slapi_entry_add_string(ds_entry, "objectClass", "inetUser");
        if (rc != 0) {
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "<-- _pre_ds_add_user_cb -- adding objectclass for new entry failed %d\n",
                          rc);
        } else {
            if (posix_winsync_config_get_mapNestedGrouping()) {
                memberUidLock();
                addUserToGroupMembership(ds_entry);
                memberUidUnlock();
            }
        }
    }
    sync_acct_disable(cbdata, ad_entry, ds_entry, ACCT_DISABLE_TO_DS, ds_entry, NULL, NULL);
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name, "<-- _pre_ds_add_user_cb -- end\n");

    return;
}

static void
posix_winsync_pre_ds_add_group_cb(void *cbdata __attribute__((unused)),
                                  const Slapi_Entry *rawentry __attribute__((unused)),
                                  Slapi_Entry *ad_entry,
                                  Slapi_Entry *ds_entry)
{
    Slapi_Attr *attr = NULL;
    char *type = NULL;
    PRBool posixval = PR_FALSE;
    windows_attribute_map *attr_map = group_attribute_map;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    if (posix_winsync_config_get_msSFUSchema())
        attr_map = group_mssfu_attribute_map;

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_pre_ds_add_group_cb -- begin\n");

    for (slapi_entry_first_attr(ad_entry, &attr); attr; slapi_entry_next_attr(ad_entry, attr, &attr)) {
        size_t i = 0;

        slapi_attr_get_type(attr, &type);
        if (!type) {
            continue;
        }

        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name, "--> _pre_ds_add_group_cb -- "
                                                                   "look for [%s] to new entry [%s]\n",
                      type, slapi_entry_get_dn_const(ds_entry));
        for (i = 0; attr_map && attr_map[i].windows_attribute_name != NULL; i++) {
            if (slapi_attr_type_cmp(attr_map[i].windows_attribute_name, type,
                                    SLAPI_TYPE_CMP_SUBTYPE) == 0) {
                Slapi_ValueSet *svs = NULL;
                slapi_attr_get_valueset(attr, &svs);
                slapi_entry_add_valueset(ds_entry, attr_map[i].ldap_attribute_name, svs);
                slapi_valueset_free(svs);

                slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                              "--> _pre_ds_add_group_cb -- "
                              "adding val for [%s] to new entry [%s]\n",
                              type,
                              slapi_entry_get_dn_const(ds_entry));
                posixval = PR_TRUE;
            }
        }
    }
    if (posixval) {
        int rc;
        rc = slapi_entry_add_string(ds_entry, "objectClass", "posixGroup");
        if (rc != 0) {
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "<-- _pre_ds_add_group_cb -- adding objectclass for new entry failed %d\n",
                          rc);
        }
    }
    if (posix_winsync_config_get_mapMemberUid() || posix_winsync_config_get_mapNestedGrouping()) {
        memberUidLock();
        addGroupMembership(ds_entry, ad_entry);
        memberUidUnlock();
    }
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_pre_ds_add_group_cb -- end\n");

    return;
}

static void
posix_winsync_get_new_ds_user_dn_cb(void *cbdata __attribute__((unused)),
                                    const Slapi_Entry *rawentry __attribute__((unused)),
                                    Slapi_Entry *ad_entry __attribute__((unused)),
                                    char **new_dn_string,
                                    const Slapi_DN *ds_suffix __attribute__((unused)),
                                    const Slapi_DN *ad_suffix __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_get_new_ds_user_dn_cb -- old dn [%s] -- begin\n",
                  *new_dn_string);

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_get_new_ds_user_dn_cb -- new dn [%s] -- end\n",
                  *new_dn_string);

    return;
}

static void
posix_winsync_get_new_ds_group_dn_cb(void *cbdata __attribute__((unused)),
                                     const Slapi_Entry *rawentry __attribute__((unused)),
                                     Slapi_Entry *ad_entry __attribute__((unused)),
                                     char **new_dn_string __attribute__((unused)),
                                     const Slapi_DN *ds_suffix __attribute__((unused)),
                                     const Slapi_DN *ad_suffix __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_get_new_ds_group_dn_cb -- begin\n");

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_get_new_ds_group_dn_cb -- end\n");

    return;
}

static void
posix_winsync_pre_ad_mod_user_mods_cb(void *cbdata,
                                      const Slapi_Entry *rawentry,
                                      const Slapi_DN *local_dn __attribute__((unused)),
                                      const Slapi_Entry *ds_entry,
                                      LDAPMod *const *origmods,
                                      Slapi_DN *remote_dn __attribute__((unused)),
                                      LDAPMod ***modstosend)
{
    Slapi_Mods *smods;
    Slapi_Mods *new_smods;
    LDAPMod *mod = NULL;
    windows_attribute_map *attr_map = user_attribute_map;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }
    smods = slapi_mods_new();
    new_smods = slapi_mods_new();

    if (posix_winsync_config_get_msSFUSchema())
        attr_map = user_mssfu_attribute_map;

    /* mod if changed objectclass: posixAccount, uidnumber, gidnumber, homeDirectory, loginShell */
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> _pre_ad_mod_user_mods_cb -- begin DS account [%s] \n",
                  slapi_entry_get_dn_const(ds_entry));

    /* wrap the modstosend in a Slapi_Mods for convenience */
    slapi_mods_init_passin(new_smods, *modstosend);
    slapi_mods_init_byref(smods, (LDAPMod **)origmods);

    for (mod = slapi_mods_get_first_mod(smods); mod; mod = slapi_mods_get_next_mod(smods)) {
        size_t i = 0;
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "_pre_ad_mod_user_mods_cb -- check modify type %s\n", mod->mod_type);
        for (; attr_map[i].windows_attribute_name != NULL; i++) {
            if (0 == slapi_attr_type_cmp(mod->mod_type, attr_map[i].ldap_attribute_name,
                                         SLAPI_TYPE_CMP_SUBTYPE)) {
                Slapi_Mod *mysmod = slapi_mod_new();
                slapi_mod_init_byval(mysmod, mod);
                slapi_mod_set_type(mysmod, attr_map[i].windows_attribute_name);
                slapi_mods_add_ldapmod(new_smods, slapi_mod_get_ldapmod_passout(mysmod));
                slapi_mod_free(&mysmod);
                slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                              "_pre_ad_mod_user_mods_cb -- add modify %s DS account [%s]\n",
                              attr_map[i].windows_attribute_name,
                              slapi_entry_get_dn_const(ds_entry));
                if (0 == slapi_attr_type_cmp(mod->mod_type, "uidNumber", SLAPI_TYPE_CMP_SUBTYPE)) {
                    Slapi_Mod *ocsmod = slapi_mod_new();
                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "_pre_ad_mod_user_mods_cb -- add NisDomain\n");
                    addNisDomainName(ocsmod, ds_entry);
                    slapi_mods_add_ldapmod(new_smods, slapi_mod_get_ldapmod_passout(ocsmod));
                    slapi_mod_free(&ocsmod);
                }
            }
        }
        if (0 == slapi_attr_type_cmp(mod->mod_type, "nsRoleDN", SLAPI_TYPE_CMP_SUBTYPE)) {
            int dummy = 0;
            sync_acct_disable(cbdata, rawentry, (Slapi_Entry *)ds_entry, ACCT_DISABLE_TO_AD, NULL,
                              new_smods, &dummy);
        }
    }
    if (slapi_is_loglevel_set(SLAPI_LOG_PLUGIN)) {
        for (mod = slapi_mods_get_first_mod(new_smods); mod; mod = slapi_mods_get_next_mod(new_smods)) {
            slapi_mod_dump(mod, 0);
        }
    }
    *modstosend = slapi_mods_get_ldapmods_passout(new_smods);

    slapi_mods_free(&smods);
    slapi_mods_free(&new_smods);
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- _pre_ad_mod_user_mods_cb -- end\n");

    return;
}

static void
posix_winsync_pre_ad_mod_group_mods_cb(void *cbdata __attribute__((unused)),
                                       const Slapi_Entry *rawentry __attribute__((unused)),
                                       const Slapi_DN *local_dn __attribute__((unused)),
                                       const Slapi_Entry *ds_entry,
                                       LDAPMod *const *origmods,
                                       Slapi_DN *remote_dn __attribute__((unused)),
                                       LDAPMod ***modstosend)
{
    Slapi_Mods *smods;
    Slapi_Mods *new_smods;
    LDAPMod *mod = NULL;
    windows_attribute_map *attr_map = group_attribute_map;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    smods = slapi_mods_new();
    new_smods = slapi_mods_new();

    if (posix_winsync_config_get_msSFUSchema())
        attr_map = group_mssfu_attribute_map;

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> _pre_ad_mod_group_mods_cb -- begin\n");
    /* wrap the modstosend in a Slapi_Mods for convenience */
    slapi_mods_init_passin(new_smods, *modstosend);
    slapi_mods_init_byref(smods, (LDAPMod **)origmods);

    for (mod = slapi_mods_get_first_mod(smods); mod; mod = slapi_mods_get_next_mod(smods)) {
        size_t i = 0;
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "_pre_ad_mod_group_mods_cb -- check modify type %s\n", mod->mod_type);
        for (; attr_map[i].windows_attribute_name != NULL; i++) {
            if (0 == slapi_attr_type_cmp(mod->mod_type, attr_map[i].ldap_attribute_name,
                                         SLAPI_TYPE_CMP_SUBTYPE)) {
                Slapi_Mod *mysmod = slapi_mod_new();
                if (mod->mod_op & LDAP_MOD_DELETE) {
                    slapi_mod_init(mysmod, 0);
                    slapi_mod_set_operation(mysmod, LDAP_MOD_DELETE | LDAP_MOD_BVALUES);
                    slapi_mod_set_type(mysmod, attr_map[i].windows_attribute_name);
                } else {
                    slapi_mod_init_byval(mysmod, mod);
                    slapi_mod_set_type(mysmod, attr_map[i].windows_attribute_name);
                    if (0 == slapi_attr_type_cmp(mod->mod_type, "gidNumber", SLAPI_TYPE_CMP_SUBTYPE)) {
                        Slapi_Mod *ocsmod = slapi_mod_new();
                        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                      "_pre_ad_mod_group_mods_cb -- add NisDomain\n");
                        addNisDomainName(ocsmod, ds_entry);
                        slapi_mods_add_ldapmod(new_smods, slapi_mod_get_ldapmod_passout(ocsmod));
                        slapi_mod_free(&ocsmod);
                    }
                }
                slapi_mods_add_ldapmod(new_smods, slapi_mod_get_ldapmod_passout(mysmod));
                slapi_mod_free(&mysmod);
                slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                              "_pre_ad_mod_group_mods_cb -- add modify %s DS account [%s]\n",
                              attr_map[i].windows_attribute_name,
                              slapi_entry_get_dn_const(ds_entry));
            }
        }
    }
    *modstosend = slapi_mods_get_ldapmods_passout(new_smods);
    if (slapi_is_loglevel_set(SLAPI_LOG_PLUGIN)) {
        for (mod = slapi_mods_get_first_mod(new_smods); mod;
             mod = slapi_mods_get_next_mod(new_smods)) {
            slapi_mod_dump(mod, 0);
        }
    }
    slapi_mods_free(&smods);
    slapi_mods_free(&new_smods);
    plugin_op_finished();

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- _pre_ad_mod_group_mods_cb -- end\n");

    return;
}

static int
posix_winsync_can_add_entry_to_ad_cb(void *cbdata __attribute__((unused)),
                                     const Slapi_Entry *local_entry __attribute__((unused)),
                                     const Slapi_DN *remote_dn __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_can_add_entry_to_ad_cb -- begin\n");

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_can_add_entry_to_ad_cb -- end\n");

    return 1; /* false - do not allow entries to be added to ad */
}

static void
posix_winsync_begin_update_cb(void *cbdata __attribute__((unused)),
                              const Slapi_DN *ds_subtree __attribute__((unused)),
                              const Slapi_DN *ad_subtree __attribute__((unused)),
                              int is_total __attribute__((unused)))
{
    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_begin_update_cb -- begin\n");
    posix_winsync_config_reset_MOFTaskCreated();
    plugin_op_finished();

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_begin_update_cb -- end\n");

    return;
}

static void
posix_winsync_end_update_cb(void *cbdata __attribute__((unused)),
                            const Slapi_DN *ds_subtree,
                            const Slapi_DN *ad_subtree __attribute__((unused)),
                            int is_total __attribute__((unused)))
{

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_end_update_cb -- begin %d %d\n",
                  posix_winsync_config_get_MOFTaskCreated(),
                  posix_winsync_config_get_createMOFTask());
    if (1 && posix_winsync_config_get_createMOFTask()) {
        /* add a task to schedule memberof Plugin for fix memebrof attributs */
        Slapi_PBlock *pb = slapi_pblock_new();
        Slapi_Entry *e_task = slapi_entry_alloc();
        int rc = 0;
        char *dn = slapi_create_dn_string("cn=%s,cn=%s,cn=tasks,cn=config",
                                          posix_winsync_plugin_name, MEMBEROFTASK);

        if (NULL == dn) {
            slapi_pblock_destroy(pb);
            slapi_entry_free(e_task);
            slapi_log_err(SLAPI_LOG_ERR, posix_winsync_plugin_name,
                          "posix_winsync_end_update_cb: "
                          "failed to create task dn: cn=%s,%s,cn=tasks,cn=config\n",
                          posix_winsync_plugin_name, MEMBEROFTASK);
            plugin_op_finished();
            return;
        }
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "--> posix_winsync_end_update_cb, create task %s\n", dn);
        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "--> posix_winsync_end_update_cb, init'ing task\n");

        slapi_entry_init(e_task, dn, NULL);
        slapi_entry_add_string(e_task, "cn", slapi_ch_strdup(posix_winsync_plugin_name));
        slapi_entry_add_string(e_task, "objectClass", "extensibleObject");
        slapi_entry_add_string(e_task, "basedn", slapi_sdn_get_dn(ds_subtree));

        slapi_add_entry_internal_set_pb(pb, e_task, NULL, posix_winsync_get_plugin_identity(), 0);


        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "--> posix_winsync_end_update_cb, adding task\n");
        slapi_add_internal_pb(pb);

        slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                      "--> posix_winsync_end_update_cb, retrieving return code\n");
        slapi_pblock_get(pb, SLAPI_PLUGIN_INTOP_RESULT, &rc);
        if (LDAP_ALREADY_EXISTS == rc) {
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "posix_winsync_end_update_cb: "
                          "task entry %s already exists\n",
                          posix_winsync_plugin_name);
        } else if (rc != 0) {
            slapi_log_err(SLAPI_LOG_ERR, posix_winsync_plugin_name,
                          "posix_winsync_end_update_cb: "
                          "failed to add task entry (%d)\n",
                          rc);
        } else {
            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                          "posix_winsync_end_update_cb: "
                          "add task entry\n");
        }
        /* slapi_entry_free(e_task); */
        slapi_pblock_destroy(pb);
        pb = NULL;
        posix_winsync_config_reset_MOFTaskCreated();
    }
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_end_update_cb -- end\n");

    return;
}

static void
posix_winsync_destroy_agmt_cb(void *cbdata __attribute__((unused)),
                              const Slapi_DN *ds_subtree __attribute__((unused)),
                              const Slapi_DN *ad_subtree __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_destroy_agmt_cb -- begin\n");

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_destroy_agmt_cb -- end\n");

    return;
}

static void
posix_winsync_post_ad_mod_user_cb(void *cookie __attribute__((unused)),
                                  const Slapi_Entry *rawentry __attribute__((unused)),
                                  Slapi_Entry *ad_entry __attribute__((unused)),
                                  Slapi_Entry *ds_entry __attribute__((unused)),
                                  Slapi_Mods *smods __attribute__((unused)),
                                  int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ad_mod_user_cb -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of modifying AD entry [%s] was [%d:%s]\n",
                  slapi_entry_get_dn(ad_entry), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ad_mod_user_cb -- end\n");

    return;
}

static void
posix_winsync_post_ad_mod_group_cb(void *cookie __attribute__((unused)),
                                   const Slapi_Entry *rawentry __attribute__((unused)),
                                   Slapi_Entry *ad_entry __attribute__((unused)),
                                   Slapi_Entry *ds_entry __attribute__((unused)),
                                   Slapi_Mods *smods __attribute__((unused)),
                                   int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ad_mod_group_cb -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of modifying AD entry [%s] was [%d:%s]\n",
                  slapi_entry_get_dn(ad_entry), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ad_mod_group_cb -- end\n");

    return;
}

static void
posix_winsync_post_ds_mod_user_cb(void *cookie __attribute__((unused)),
                                  const Slapi_Entry *rawentry __attribute__((unused)),
                                  Slapi_Entry *ad_entry __attribute__((unused)),
                                  Slapi_Entry *ds_entry __attribute__((unused)),
                                  Slapi_Mods *smods __attribute__((unused)),
                                  int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ds_mod_user_cb -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of modifying DS entry [%s] was [%d:%s]\n",
                  slapi_entry_get_dn(ds_entry), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ds_mod_user_cb -- end\n");

    return;
}

static void
posix_winsync_post_ds_mod_group_cb(void *cookie __attribute__((unused)),
                                   const Slapi_Entry *rawentry __attribute__((unused)),
                                   Slapi_Entry *ad_entry __attribute__((unused)),
                                   Slapi_Entry *ds_entry __attribute__((unused)),
                                   Slapi_Mods *smods __attribute__((unused)),
                                   int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ds_mod_group_cb -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of modifying DS entry [%s] was [%d:%s]\n",
                  slapi_entry_get_dn(ds_entry), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ds_mod_group_cb -- end\n");

    return;
}

static void
posix_winsync_post_ds_add_user_cb(void *cookie __attribute__((unused)),
                                  const Slapi_Entry *rawentry __attribute__((unused)),
                                  Slapi_Entry *ad_entry __attribute__((unused)),
                                  Slapi_Entry *ds_entry __attribute__((unused)),
                                  int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ds_add_user_cb -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of adding DS entry [%s] was [%d:%s]\n",
                  slapi_entry_get_dn(ds_entry), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ds_add_user_cb -- end\n");

    return;
}

static void
posix_winsync_post_ds_add_group_cb(void *cookie __attribute__((unused)),
                                   const Slapi_Entry *rawentry __attribute__((unused)),
                                   Slapi_Entry *ad_entry __attribute__((unused)),
                                   Slapi_Entry *ds_entry __attribute__((unused)),
                                   int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ds_add_group_cb -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of adding DS entry [%s] was [%d:%s]\n",
                  slapi_entry_get_dn(ds_entry), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ds_add_group_cb -- end\n");

    return;
}

/*             winsync_plugin_call_pre_ad_add_user_cb(prp->agmt, mapped_entry, e); */
static void
posix_winsync_pre_ad_add_user_cb(void *cookie __attribute__((unused)),
                                 Slapi_Entry *ad_entry,
                                 Slapi_Entry *ds_entry)
{
    Slapi_Attr *obj_attr = NULL; /* Entry attributes */
    windows_attribute_map *attr_map = user_attribute_map;
    int rc = 0;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    if (posix_winsync_config_get_msSFUSchema())
        attr_map = user_mssfu_attribute_map;

    /* if ds_entry has oc posixAccount add uidnumber, gidnumber, homeDirectory, loginShell, gecos */
    /* syncing/mapping of nsaccountlock -> userAccountControl will already done by the normal Win Sync-Service */
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> _pre_ad_add_user_cb -- begin DS account [%s] \n", slapi_entry_get_dn_const(ds_entry));

    rc = slapi_entry_attr_find(ds_entry, "objectclass", &obj_attr);
    if (rc == 0) { /* Found objectclasses, so... */
        int i;
        Slapi_Value *value = NULL; /* Attribute values */

        slapi_log_err(SLAPI_LOG_PLUGIN, POSIX_WINSYNC_PLUGIN_NAME, "_pre_ad_add_user_cb -- test objectclass posixAccount\n");
        for (
            i = slapi_attr_first_value(obj_attr, &value);
            i != -1;
            i = slapi_attr_next_value(obj_attr, i, &value)) {
            const char *oc = NULL;

            oc = slapi_value_get_string(value);
            slapi_log_err(SLAPI_LOG_PLUGIN, POSIX_WINSYNC_PLUGIN_NAME, "_pre_ad_add_user_cb -- oc: %s \n", oc);
            if (strncasecmp(oc, "posixAccount", 13) == 0) { /* entry has objectclass posixAccount */
                Slapi_Attr *attr = NULL;
                char *nisdomainname = getNisDomainName(ds_entry);

                for (rc = slapi_entry_first_attr(ds_entry, &attr); attr && (rc == 0);
                     rc = slapi_entry_next_attr(ds_entry, attr, &attr)) {
                    char *type = NULL;
                    size_t i = 0;

                    slapi_attr_get_type(attr, &type);
                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "_pre_ad_add_user_cb -- check add attr: %s\n", type);
                    for (; attr_map[i].windows_attribute_name != NULL; i++) {
                        if (0 == slapi_attr_type_cmp(type, attr_map[i].ldap_attribute_name, SLAPI_TYPE_CMP_SUBTYPE)) {
                            Slapi_ValueSet *vs = NULL;

                            slapi_attr_get_valueset(attr, &vs);
                            slapi_entry_add_valueset(ad_entry, attr_map[i].windows_attribute_name, vs);
                            slapi_valueset_free(vs);

                            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                          "--> _pre_ad_add_user_cb -- "
                                          "adding val for [%s] to new entry [%s]\n",
                                          type, slapi_entry_get_dn_const(ad_entry));
                        }
                    }
                }
                if (nisdomainname) {
                    slapi_entry_add_value(ad_entry,
                                          "msSFU30NisDomain", slapi_value_new_string(nisdomainname));
                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "--> _pre_ad_add_user_cb -- "
                                  "adding val for [%s] to new entry [%s]\n",
                                  "msSFU30NisDomain", nisdomainname);
                    slapi_ch_free_string(&nisdomainname);
                }
            }
        }
    }
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- _pre_ad_add_user_cb -- end\n");

    return;
}

static void
posix_winsync_pre_ad_add_group_cb(void *cookie __attribute__((unused)),
                                  Slapi_Entry *ad_entry,
                                  Slapi_Entry *ds_entry)
{
    Slapi_Attr *obj_attr = NULL; /* Entry attributes */
    windows_attribute_map *attr_map = group_attribute_map;
    int rc = 0;

    plugin_op_started();
    if (!get_plugin_started()) {
        plugin_op_finished();
        return;
    }

    if (posix_winsync_config_get_msSFUSchema()) {
        attr_map = group_mssfu_attribute_map;
    }

    /* if ds_entry has oc posixGroup add gidnumber, ... */
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> _pre_ad_add_group_cb -- begin DS account [%s] \n", slapi_entry_get_dn_const(ds_entry));

    rc = slapi_entry_attr_find(ds_entry, "objectclass", &obj_attr);
    if (rc == 0) { /* Found objectclasses, so... */
        int i;
        Slapi_Value *value = NULL; /* Attribute values */

        slapi_log_err(SLAPI_LOG_PLUGIN, POSIX_WINSYNC_PLUGIN_NAME, "_pre_ad_add_group_cb -- test objectclass posixGroup\n");
        for (i = slapi_attr_first_value(obj_attr, &value);
             i != -1;
             i = slapi_attr_next_value(obj_attr, i, &value)) {
            const char *oc = NULL;

            oc = slapi_value_get_string(value);
            if (strncasecmp(oc, "posixGroup", 11) == 0) { /* entry has objectclass posixGroup */
                Slapi_Attr *attr = NULL;
                char *nisdomainname = getNisDomainName(ds_entry);

                for (rc = slapi_entry_first_attr(ds_entry, &attr); rc == 0;
                     rc = slapi_entry_next_attr(ds_entry, attr, &attr)) {
                    char *type = NULL;
                    int j = 0;

                    slapi_attr_get_type(attr, &type);
                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "_pre_ad_add_group_cb -- check add attr: %s\n", type);
                    for (j = 0; attr_map && attr_map[j].windows_attribute_name != NULL; j++) {
                        if (0 == slapi_attr_type_cmp(type, attr_map[j].ldap_attribute_name, SLAPI_TYPE_CMP_SUBTYPE)) {
                            Slapi_ValueSet *vs = NULL;

                            slapi_attr_get_valueset(attr, &vs);
                            slapi_entry_add_valueset(ad_entry, attr_map[j].windows_attribute_name, vs);
                            slapi_valueset_free(vs);

                            slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                          "--> _pre_ad_add_group_cb -- "
                                          "adding val for [%s] to new entry [%s]\n",
                                          type, slapi_entry_get_dn_const(ad_entry));
                        }
                    }
                }
                if (nisdomainname) {
                    slapi_entry_add_value(ad_entry, "msSFU30NisDomain", slapi_value_new_string(nisdomainname));
                    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                                  "--> _pre_ad_add_group_cb -- "
                                  "adding val for [%s] to new entry [%s]\n",
                                  "msSFU30NisDomain", nisdomainname);
                    slapi_ch_free_string(&nisdomainname);
                }
            }
        }
    }
    plugin_op_finished();
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- _pre_ad_add_group_cb -- end\n");

    return;
}

static void
posix_winsync_post_ad_add_user_cb(void *cookie __attribute__((unused)),
                                  Slapi_Entry *ds_entry __attribute__((unused)),
                                  Slapi_Entry *ad_entry __attribute__((unused)),
                                  int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ad_add_user_cb -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of adding AD entry [%s] was [%d:%s]\n",
                  slapi_entry_get_dn(ad_entry), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ad_add_user_cb -- end\n");

    return;
}

static void
posix_winsync_post_ad_add_group_cb(void *cookie __attribute__((unused)),
                                   Slapi_Entry *ds_entry __attribute__((unused)),
                                   Slapi_Entry *ad_entry __attribute__((unused)),
                                   int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ad_add_group_cb -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of adding AD entry [%s] was [%d:%s]\n",
                  slapi_entry_get_dn(ad_entry), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ad_add_group_cb -- end\n");

    return;
}

static void
posix_winsync_post_ad_mod_user_mods_cb(void *cookie __attribute__((unused)),
                                       const Slapi_Entry *rawentry __attribute__((unused)),
                                       const Slapi_DN *local_dn __attribute__((unused)),
                                       const Slapi_Entry *ds_entry __attribute__((unused)),
                                       LDAPMod *const *origmods __attribute__((unused)),
                                       Slapi_DN *remote_dn __attribute__((unused)),
                                       LDAPMod ***modstosend __attribute__((unused)),
                                       int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ad_mod_user_mods_cb  -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of modifying AD entry [%s] was [%d:%s]\n",
                  slapi_sdn_get_dn(remote_dn), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ad_mod_user_mods_cb -- end\n");

    return;
}

static void
posix_winsync_post_ad_mod_group_mods_cb(void *cookie __attribute__((unused)),
                                        const Slapi_Entry *rawentry __attribute__((unused)),
                                        const Slapi_DN *local_dn __attribute__((unused)),
                                        const Slapi_Entry *ds_entry __attribute__((unused)),
                                        LDAPMod *const *origmods __attribute__((unused)),
                                        Slapi_DN *remote_dn __attribute__((unused)),
                                        LDAPMod ***modstosend __attribute__((unused)),
                                        int *result __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_post_ad_mod_group_mods_cb  -- begin\n");

#ifdef THIS_IS_JUST_AN_EXAMPLE
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "Result of modifying AD entry [%s] was [%d:%s]\n",
                  slapi_sdn_get_dn(remote_dn), *result, ldap_err2string(*result));
#endif

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_post_ad_mod_group_mods_cb -- end\n");

    return;
}

#define DEFAULT_PRECEDENCE 25
static int precedence = DEFAULT_PRECEDENCE; /* default */

static int
posix_winsync_precedence(void)
{
    return precedence;
}

static void *posix_winsync_api[] = {NULL, /* reserved for api broker use, must be zero */
                                    posix_winsync_agmt_init,
                                    posix_winsync_dirsync_search_params_cb,
                                    posix_winsync_pre_ad_search_cb,
                                    posix_winsync_pre_ds_search_entry_cb,
                                    posix_winsync_pre_ds_search_all_cb,
                                    posix_winsync_pre_ad_mod_user_cb,
                                    posix_winsync_pre_ad_mod_group_cb,
                                    posix_winsync_pre_ds_mod_user_cb,
                                    posix_winsync_pre_ds_mod_group_cb,
                                    posix_winsync_pre_ds_add_user_cb,
                                    posix_winsync_pre_ds_add_group_cb,
                                    posix_winsync_get_new_ds_user_dn_cb,
                                    posix_winsync_get_new_ds_group_dn_cb,
                                    posix_winsync_pre_ad_mod_user_mods_cb,
                                    posix_winsync_pre_ad_mod_group_mods_cb,
                                    posix_winsync_can_add_entry_to_ad_cb,
                                    posix_winsync_begin_update_cb,
                                    posix_winsync_end_update_cb,
                                    posix_winsync_destroy_agmt_cb,
                                    posix_winsync_post_ad_mod_user_cb,
                                    posix_winsync_post_ad_mod_group_cb,
                                    posix_winsync_post_ds_mod_user_cb,
                                    posix_winsync_post_ds_mod_group_cb,
                                    posix_winsync_post_ds_add_user_cb,
                                    posix_winsync_post_ds_add_group_cb,
                                    posix_winsync_pre_ad_add_user_cb,
                                    posix_winsync_pre_ad_add_group_cb,
                                    posix_winsync_post_ad_add_user_cb,
                                    posix_winsync_post_ad_add_group_cb,
                                    posix_winsync_post_ad_mod_user_mods_cb,
                                    posix_winsync_post_ad_mod_group_mods_cb,
                                    posix_winsync_precedence};

static Slapi_ComponentId *posix_winsync_plugin_id = NULL;

/*
 ** Plugin identity mgmt
 */

void
posix_winsync_set_plugin_identity(void *identity)
{
    posix_winsync_plugin_id = identity;
}

void *
posix_winsync_get_plugin_identity(void)
{
    return posix_winsync_plugin_id;
}

static int
posix_winsync_plugin_start(Slapi_PBlock *pb)
{
    int rc;
    Slapi_Entry *config_e = NULL; /* entry containing plugin config */

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_plugin_start -- begin\n");

    if (slapi_apib_register(WINSYNC_v3_0_GUID, posix_winsync_api)) {
        slapi_log_err(SLAPI_LOG_ERR, posix_winsync_plugin_name,
                      "<-- posix_winsync_plugin_start -- failed to register winsync api -- end\n");
        return -1;
    }

    if (slapi_pblock_get(pb, SLAPI_ADD_ENTRY, &config_e) != 0) {
        slapi_log_err(SLAPI_LOG_ERR, posix_winsync_plugin_name, "posix_winsync_plugin_start - "
                                                                "Missing config entry\n");
        return (-1);
    }
    if ((rc = posix_winsync_config(config_e)) != LDAP_SUCCESS) {
        slapi_log_err(SLAPI_LOG_ERR, posix_winsync_plugin_name, "posix_winsync_plugin_start - "
                                                                "configuration failed (%s)\n",
                      ldap_err2string(rc));
        return (-1);
    }
    g_plugin_started = 1;
    op_counter = slapi_counter_new();

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_plugin_start -- registered; end\n");
    return 0;
}

static int
posix_winsync_plugin_close(Slapi_PBlock *pb __attribute__((unused)))
{
    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_plugin_close -- begin\n");

    g_plugin_started = 0;
    posix_winsync_plugin_op_all_finished();
    slapi_apib_unregister(WINSYNC_v1_0_GUID);
    posix_winsync_config_free();

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_plugin_close -- end\n");
    return 0;
}

/* this is the slapi plugin init function,
 not the one used by the winsync api
 */
int
posix_winsync_plugin_init(Slapi_PBlock *pb)
{
    void *plugin_id = NULL;
    Slapi_Entry *confige = NULL;

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "--> posix_winsync_plugin_init -- begin\n");

    if (slapi_pblock_get(pb, SLAPI_PLUGIN_CONFIG_ENTRY, &confige) && confige) {
        precedence = slapi_entry_attr_get_int(confige, "nsslapd-pluginprecedence");
        if (!precedence) {
            precedence = DEFAULT_PRECEDENCE;
        }
    }

    if (slapi_pblock_set(pb, SLAPI_PLUGIN_VERSION, SLAPI_PLUGIN_VERSION_01) != 0 || slapi_pblock_set(pb, SLAPI_PLUGIN_START_FN, (void *)posix_winsync_plugin_start) != 0 || slapi_pblock_set(pb, SLAPI_PLUGIN_CLOSE_FN, (void *)posix_winsync_plugin_close) != 0 || slapi_pblock_set(pb, SLAPI_PLUGIN_DESCRIPTION, (void *)&posix_winsync_pdesc) != 0) {
        slapi_log_err(SLAPI_LOG_ERR, posix_winsync_plugin_name,
                      "posix_winsync_plugin_init - Failed to register plugin -- end\n");
        return -1;
    }

    /* Retrieve and save the plugin identity to later pass to
     internal operations */
    if (slapi_pblock_get(pb, SLAPI_PLUGIN_IDENTITY, &plugin_id) != 0) {
        slapi_log_err(SLAPI_LOG_ERR, posix_winsync_plugin_name,
                      "posix_winsync_plugin_init - Failed to retrieve plugin identity -- end\n");
        return -1;
    }

    posix_winsync_set_plugin_identity(plugin_id);

    slapi_log_err(SLAPI_LOG_PLUGIN, posix_winsync_plugin_name,
                  "<-- posix_winsync_plugin_init -- end\n");
    return 0;
}

PRUint64
get_plugin_started()
{
    return g_plugin_started;
}

void
plugin_op_started()
{
    slapi_counter_increment(op_counter);
}

void
plugin_op_finished()
{
    slapi_counter_decrement(op_counter);
}

void
posix_winsync_plugin_op_all_finished()
{
    while (slapi_counter_get_value(op_counter) > 0) {
        PR_Sleep(PR_MillisecondsToInterval(100));
    }
    slapi_counter_destroy(&op_counter);
}
