r6334: revert 3.0.15pre1 changes. roll back to 3.0.14.

[Samba.git] / source / rpc_server / srv_lsa_nt.c

/*
 *  Unix SMB/CIFS implementation.
 *  RPC Pipe client / server routines
 *  Copyright (C) Andrew Tridgell              1992-1997,
 *  Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
 *  Copyright (C) Paul Ashton                       1997,
 *  Copyright (C) Jeremy Allison                    2001,
 *  Copyright (C) Rafal Szczesniak                  2002,
 *  Copyright (C) Jim McDonough <jmcd@us.ibm.com>   2002,
 *  Copyright (C) Simo Sorce                        2003.
 *  Copyright (C) Gerald (Jerry) Carter             2005.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/* This is the implementation of the lsa server code. */

#include "includes.h"

#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV

extern PRIVS privs[];

struct lsa_info {
        DOM_SID sid;
        uint32 access;
};

struct generic_mapping lsa_generic_mapping = {
        POLICY_READ,
        POLICY_WRITE,
        POLICY_EXECUTE,
        POLICY_ALL_ACCESS
};

/*******************************************************************
 Function to free the per handle data.
 ********************************************************************/

static void free_lsa_info(void *ptr)
{
        struct lsa_info *lsa = (struct lsa_info *)ptr;

        SAFE_FREE(lsa);
}

/***************************************************************************
Init dom_query
 ***************************************************************************/

static void init_dom_query(DOM_QUERY *d_q, const char *dom_name, DOM_SID *dom_sid)
{
        d_q->buffer_dom_name = (dom_name != NULL) ? 1 : 0; /* domain buffer pointer */
        d_q->buffer_dom_sid = (dom_sid != NULL) ? 1 : 0;  /* domain sid pointer */

        /* this string is supposed to be non-null terminated. */
        /* But the maxlen in this UNISTR2 must include the terminating null. */
        init_unistr2(&d_q->uni_domain_name, dom_name, UNI_BROKEN_NON_NULL);

        /*
         * I'm not sure why this really odd combination of length
         * values works, but it does appear to. I need to look at
         * this *much* more closely - but at the moment leave alone
         * until it's understood. This allows a W2k client to join
         * a domain with both odd and even length names... JRA.
         */

        /*
         * IMPORTANT NOTE !!!!
         * The two fields below probably are reversed in meaning, ie.
         * the first field is probably the str_len, the second the max
         * len. Both are measured in bytes anyway.
         */

        d_q->uni_dom_str_len = d_q->uni_domain_name.uni_max_len * 2;
        d_q->uni_dom_max_len = d_q->uni_domain_name.uni_str_len * 2;

        if (dom_sid != NULL)
                init_dom_sid2(&d_q->dom_sid, dom_sid);
}

/***************************************************************************
 init_dom_ref - adds a domain if it's not already in, returns the index.
***************************************************************************/

static int init_dom_ref(DOM_R_REF *ref, char *dom_name, DOM_SID *dom_sid)
{
        int num = 0;

        if (dom_name != NULL) {
                for (num = 0; num < ref->num_ref_doms_1; num++) {
                        fstring domname;
                        rpcstr_pull(domname, ref->ref_dom[num].uni_dom_name.buffer, sizeof(domname), -1, 0);
                        if (strequal(domname, dom_name))
                                return num;
                }
        } else {
                num = ref->num_ref_doms_1;
        }

        if (num >= MAX_REF_DOMAINS) {
                /* index not found, already at maximum domain limit */
                return -1;
        }

        ref->num_ref_doms_1 = num+1;
        ref->ptr_ref_dom  = 1;
        ref->max_entries = MAX_REF_DOMAINS;
        ref->num_ref_doms_2 = num+1;

        ref->hdr_ref_dom[num].ptr_dom_sid = dom_sid != NULL ? 1 : 0;

        init_unistr2(&ref->ref_dom[num].uni_dom_name, dom_name, UNI_FLAGS_NONE);
        init_uni_hdr(&ref->hdr_ref_dom[num].hdr_dom_name, &ref->ref_dom[num].uni_dom_name);

        init_dom_sid2(&ref->ref_dom[num].ref_dom, dom_sid );

        return num;
}

/***************************************************************************
 init_lsa_rid2s
 ***************************************************************************/

static void init_lsa_rid2s(DOM_R_REF *ref, DOM_RID2 *rid2,
                                int num_entries, UNISTR2 *name,
                                uint32 *mapped_count, BOOL endian)
{
        int i;
        int total = 0;
        *mapped_count = 0;

        SMB_ASSERT(num_entries <= MAX_LOOKUP_SIDS);

        become_root(); /* lookup_name can require root privs */

        for (i = 0; i < num_entries; i++) {
                BOOL status = False;
                DOM_SID sid;
                uint32 rid = 0xffffffff;
                int dom_idx = -1;
                pstring full_name;
                fstring dom_name, user;
                enum SID_NAME_USE name_type = SID_NAME_UNKNOWN;

                /* Split name into domain and user component */

                unistr2_to_ascii(full_name, &name[i], sizeof(full_name));
                split_domain_name(full_name, dom_name, user);

                /* Lookup name */

                DEBUG(5, ("init_lsa_rid2s: looking up name %s\n", full_name));

                status = lookup_name(dom_name, user, &sid, &name_type);

                if((name_type == SID_NAME_UNKNOWN) && (lp_server_role() == ROLE_DOMAIN_MEMBER)  && (strncmp(dom_name, full_name, strlen(dom_name)) != 0)) {
                        DEBUG(5, ("init_lsa_rid2s: domain name not provided and local account not found, using member domain\n"));
                        fstrcpy(dom_name, lp_workgroup());
                        status = lookup_name(dom_name, user, &sid, &name_type);
                }

#if 0 /* This is not true. */
                if (name_type == SID_NAME_WKN_GRP) {
                        /* BUILTIN aliases are still aliases :-) */
                        name_type = SID_NAME_ALIAS;
                }
#endif

                DEBUG(5, ("init_lsa_rid2s: %s\n", status ? "found" : 
                          "not found"));

                if (status && name_type != SID_NAME_UNKNOWN) {
                        sid_split_rid(&sid, &rid);
                        dom_idx = init_dom_ref(ref, dom_name, &sid);
                        (*mapped_count)++;
                } else {
                        dom_idx = -1;
                        rid = 0;
                        name_type = SID_NAME_UNKNOWN;
                }

                init_dom_rid2(&rid2[total], rid, name_type, dom_idx);
                total++;
        }

        unbecome_root();
}

/***************************************************************************
 init_reply_lookup_names
 ***************************************************************************/

static void init_reply_lookup_names(LSA_R_LOOKUP_NAMES *r_l,
                DOM_R_REF *ref, uint32 num_entries,
                DOM_RID2 *rid2, uint32 mapped_count)
{
        r_l->ptr_dom_ref  = 1;
        r_l->dom_ref      = ref;

        r_l->num_entries  = num_entries;
        r_l->ptr_entries  = 1;
        r_l->num_entries2 = num_entries;
        r_l->dom_rid      = rid2;

        r_l->mapped_count = mapped_count;
}

/***************************************************************************
 Init lsa_trans_names.
 ***************************************************************************/

static void init_lsa_trans_names(TALLOC_CTX *ctx, DOM_R_REF *ref, LSA_TRANS_NAME_ENUM *trn,
                                 int num_entries, DOM_SID2 *sid,
                                 uint32 *mapped_count)
{
        int i;
        int total = 0;
        *mapped_count = 0;

        /* Allocate memory for list of names */

        if (num_entries > 0) {
                if (!(trn->name = TALLOC_ARRAY(ctx, LSA_TRANS_NAME, num_entries))) {
                        DEBUG(0, ("init_lsa_trans_names(): out of memory\n"));
                        return;
                }

                if (!(trn->uni_name = TALLOC_ARRAY(ctx, UNISTR2, num_entries))) {
                        DEBUG(0, ("init_lsa_trans_names(): out of memory\n"));
                        return;
                }
        }

        become_root(); /* Need root to get to passdb to for local sids */

        for (i = 0; i < num_entries; i++) {
                BOOL status = False;
                DOM_SID find_sid = sid[i].sid;
                uint32 rid = 0xffffffff;
                int dom_idx = -1;
                fstring name, dom_name;
                enum SID_NAME_USE sid_name_use = (enum SID_NAME_USE)0;

                sid_to_string(name, &find_sid);
                DEBUG(5, ("init_lsa_trans_names: looking up sid %s\n", name));

                /* Lookup sid from winbindd */

                status = lookup_sid(&find_sid, dom_name, name, &sid_name_use);

                DEBUG(5, ("init_lsa_trans_names: %s\n", status ? "found" : 
                          "not found"));

                if (!status) {
                        sid_name_use = SID_NAME_UNKNOWN;
                        memset(dom_name, '\0', sizeof(dom_name));
                        sid_to_string(name, &find_sid);
                        dom_idx = -1;

                        DEBUG(10,("init_lsa_trans_names: added unknown user '%s' to "
                                  "referenced list.\n", name ));
                } else {
                        (*mapped_count)++;
                        /* Store domain sid in ref array */
                        if (find_sid.num_auths == 5) {
                                sid_split_rid(&find_sid, &rid);
                        }
                        dom_idx = init_dom_ref(ref, dom_name, &find_sid);

                        DEBUG(10,("init_lsa_trans_names: added %s '%s\\%s' (%d) to referenced list.\n", 
                                sid_type_lookup(sid_name_use), dom_name, name, sid_name_use ));

                }

                init_lsa_trans_name(&trn->name[total], &trn->uni_name[total],
                                        sid_name_use, name, dom_idx);
                total++;
        }

        unbecome_root();

        trn->num_entries = total;
        trn->ptr_trans_names = 1;
        trn->num_entries2 = total;
}

/***************************************************************************
 Init_reply_lookup_sids.
 ***************************************************************************/

static void init_reply_lookup_sids(LSA_R_LOOKUP_SIDS *r_l,
                DOM_R_REF *ref, LSA_TRANS_NAME_ENUM *names,
                uint32 mapped_count)
{
        r_l->ptr_dom_ref  = 1;
        r_l->dom_ref      = ref;
        r_l->names        = names;
        r_l->mapped_count = mapped_count;
}

static NTSTATUS lsa_get_generic_sd(TALLOC_CTX *mem_ctx, SEC_DESC **sd, size_t *sd_size)
{
        extern DOM_SID global_sid_World;
        extern DOM_SID global_sid_Builtin;
        DOM_SID local_adm_sid;
        DOM_SID adm_sid;

        SEC_ACE ace[3];
        SEC_ACCESS mask;

        SEC_ACL *psa = NULL;

        init_sec_access(&mask, POLICY_EXECUTE);
        init_sec_ace(&ace[0], &global_sid_World, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);

        sid_copy(&adm_sid, get_global_sam_sid());
        sid_append_rid(&adm_sid, DOMAIN_GROUP_RID_ADMINS);
        init_sec_access(&mask, POLICY_ALL_ACCESS);
        init_sec_ace(&ace[1], &adm_sid, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);

        sid_copy(&local_adm_sid, &global_sid_Builtin);
        sid_append_rid(&local_adm_sid, BUILTIN_ALIAS_RID_ADMINS);
        init_sec_access(&mask, POLICY_ALL_ACCESS);
        init_sec_ace(&ace[2], &local_adm_sid, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);

        if((psa = make_sec_acl(mem_ctx, NT4_ACL_REVISION, 3, ace)) == NULL)
                return NT_STATUS_NO_MEMORY;

        if((*sd = make_sec_desc(mem_ctx, SEC_DESC_REVISION, SEC_DESC_SELF_RELATIVE, &adm_sid, NULL, NULL, psa, sd_size)) == NULL)
                return NT_STATUS_NO_MEMORY;

        return NT_STATUS_OK;
}

#if 0   /* AD DC work in ongoing in Samba 4 */

/***************************************************************************
 Init_dns_dom_info.
***************************************************************************/

static void init_dns_dom_info(LSA_DNS_DOM_INFO *r_l, const char *nb_name,
                              const char *dns_name, const char *forest_name,
                              struct uuid *dom_guid, DOM_SID *dom_sid)
{
        if (nb_name && *nb_name) {
                init_unistr2(&r_l->uni_nb_dom_name, nb_name, UNI_FLAGS_NONE);
                init_uni_hdr(&r_l->hdr_nb_dom_name, &r_l->uni_nb_dom_name);
                r_l->hdr_nb_dom_name.uni_max_len += 2;
                r_l->uni_nb_dom_name.uni_max_len += 1;
        }
        
        if (dns_name && *dns_name) {
                init_unistr2(&r_l->uni_dns_dom_name, dns_name, UNI_FLAGS_NONE);
                init_uni_hdr(&r_l->hdr_dns_dom_name, &r_l->uni_dns_dom_name);
                r_l->hdr_dns_dom_name.uni_max_len += 2;
                r_l->uni_dns_dom_name.uni_max_len += 1;
        }

        if (forest_name && *forest_name) {
                init_unistr2(&r_l->uni_forest_name, forest_name, UNI_FLAGS_NONE);
                init_uni_hdr(&r_l->hdr_forest_name, &r_l->uni_forest_name);
                r_l->hdr_forest_name.uni_max_len += 2;
                r_l->uni_forest_name.uni_max_len += 1;
        }

        /* how do we init the guid ? probably should write an init fn */
        if (dom_guid) {
                memcpy(&r_l->dom_guid, dom_guid, sizeof(struct uuid));
        }
        
        if (dom_sid) {
                r_l->ptr_dom_sid = 1;
                init_dom_sid2(&r_l->dom_sid, dom_sid);
        }
}
#endif  /* AD DC work in ongoing in Samba 4 */


/***************************************************************************
 _lsa_open_policy2.
 ***************************************************************************/

NTSTATUS _lsa_open_policy2(pipes_struct *p, LSA_Q_OPEN_POL2 *q_u, LSA_R_OPEN_POL2 *r_u)
{
        struct lsa_info *info;
        SEC_DESC *psd = NULL;
        size_t sd_size;
        uint32 des_access=q_u->des_access;
        uint32 acc_granted;
        NTSTATUS status;


        /* map the generic bits to the lsa policy ones */
        se_map_generic(&des_access, &lsa_generic_mapping);

        /* get the generic lsa policy SD until we store it */
        lsa_get_generic_sd(p->mem_ctx, &psd, &sd_size);

        if(!se_access_check(psd, p->pipe_user.nt_user_token, des_access, &acc_granted, &status)) {
                if (geteuid() != 0) {
                        return status;
                }
                DEBUG(4,("ACCESS should be DENIED (granted: %#010x;  required: %#010x)\n",
                         acc_granted, des_access));
                DEBUGADD(4,("but overwritten by euid == 0\n"));
        }

        /* This is needed for lsa_open_account and rpcclient .... :-) */

        if (geteuid() == 0)
                acc_granted = POLICY_ALL_ACCESS;

        /* associate the domain SID with the (unique) handle. */
        if ((info = SMB_MALLOC_P(struct lsa_info)) == NULL)
                return NT_STATUS_NO_MEMORY;

        ZERO_STRUCTP(info);
        sid_copy(&info->sid,get_global_sam_sid());
        info->access = acc_granted;

        /* set up the LSA QUERY INFO response */
        if (!create_policy_hnd(p, &r_u->pol, free_lsa_info, (void *)info))
                return NT_STATUS_OBJECT_NAME_NOT_FOUND;

        return NT_STATUS_OK;
}

/***************************************************************************
 _lsa_open_policy
 ***************************************************************************/

NTSTATUS _lsa_open_policy(pipes_struct *p, LSA_Q_OPEN_POL *q_u, LSA_R_OPEN_POL *r_u)
{
        struct lsa_info *info;
        SEC_DESC *psd = NULL;
        size_t sd_size;
        uint32 des_access=q_u->des_access;
        uint32 acc_granted;
        NTSTATUS status;


        /* map the generic bits to the lsa policy ones */
        se_map_generic(&des_access, &lsa_generic_mapping);

        /* get the generic lsa policy SD until we store it */
        lsa_get_generic_sd(p->mem_ctx, &psd, &sd_size);

        if(!se_access_check(psd, p->pipe_user.nt_user_token, des_access, &acc_granted, &status)) {
                if (geteuid() != 0) {
                        return status;
                }
                DEBUG(4,("ACCESS should be DENIED (granted: %#010x;  required: %#010x)\n",
                         acc_granted, des_access));
                DEBUGADD(4,("but overwritten by euid == 0\n"));
                acc_granted = des_access;
        }

        /* associate the domain SID with the (unique) handle. */
        if ((info = SMB_MALLOC_P(struct lsa_info)) == NULL)
                return NT_STATUS_NO_MEMORY;

        ZERO_STRUCTP(info);
        sid_copy(&info->sid,get_global_sam_sid());
        info->access = acc_granted;

        /* set up the LSA QUERY INFO response */
        if (!create_policy_hnd(p, &r_u->pol, free_lsa_info, (void *)info))
                return NT_STATUS_OBJECT_NAME_NOT_FOUND;

        return NT_STATUS_OK;
}

/***************************************************************************
 _lsa_enum_trust_dom - this needs fixing to do more than return NULL ! JRA.
 ufff, done :)  mimir
 ***************************************************************************/

NTSTATUS _lsa_enum_trust_dom(pipes_struct *p, LSA_Q_ENUM_TRUST_DOM *q_u, LSA_R_ENUM_TRUST_DOM *r_u)
{
        struct lsa_info *info;
        uint32 enum_context = q_u->enum_context;

        /*
         * preferred length is set to 5 as a "our" preferred length
         * nt sets this parameter to 2
         * update (20.08.2002): it's not preferred length, but preferred size!
         * it needs further investigation how to optimally choose this value
         */
        uint32 max_num_domains = q_u->preferred_len < 5 ? q_u->preferred_len : 10;
        TRUSTDOM **trust_doms;
        uint32 num_domains;
        NTSTATUS nt_status;

        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;

        /* check if the user have enough rights */
        if (!(info->access & POLICY_VIEW_LOCAL_INFORMATION))
                return NT_STATUS_ACCESS_DENIED;

        nt_status = secrets_get_trusted_domains(p->mem_ctx, (int *)&enum_context, max_num_domains, (int *)&num_domains, &trust_doms);

        if (!NT_STATUS_IS_OK(nt_status) &&
            !NT_STATUS_EQUAL(nt_status, STATUS_MORE_ENTRIES) &&
            !NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_MORE_ENTRIES)) {
                return nt_status;
        } else {
                r_u->status = nt_status;
        }

        /* set up the lsa_enum_trust_dom response */
        init_r_enum_trust_dom(p->mem_ctx, r_u, enum_context, max_num_domains, num_domains, trust_doms);

        return r_u->status;
}

/***************************************************************************
 _lsa_query_info. See the POLICY_INFOMATION_CLASS docs at msdn.
 ***************************************************************************/

NTSTATUS _lsa_query_info(pipes_struct *p, LSA_Q_QUERY_INFO *q_u, LSA_R_QUERY_INFO *r_u)
{
        struct lsa_info *handle;
        LSA_INFO_UNION *info = &r_u->dom;
        DOM_SID domain_sid;
        const char *name;
        DOM_SID *sid = NULL;

        r_u->status = NT_STATUS_OK;

        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle))
                return NT_STATUS_INVALID_HANDLE;

        switch (q_u->info_class) {
        case 0x02:
                {
                unsigned int i;
                /* check if the user have enough rights */
                if (!(handle->access & POLICY_VIEW_AUDIT_INFORMATION))
                        return NT_STATUS_ACCESS_DENIED;

                /* fake info: We audit everything. ;) */
                info->id2.auditing_enabled = 1;
                info->id2.count1 = 7;
                info->id2.count2 = 7;
                if ((info->id2.auditsettings = TALLOC_ARRAY(p->mem_ctx,uint32, 7)) == NULL)
                        return NT_STATUS_NO_MEMORY;
                for (i = 0; i < 7; i++)
                        info->id2.auditsettings[i] = 3;
                break;
                }
        case 0x03:
                /* check if the user have enough rights */
                if (!(handle->access & POLICY_VIEW_LOCAL_INFORMATION))
                        return NT_STATUS_ACCESS_DENIED;

                /* Request PolicyPrimaryDomainInformation. */
                switch (lp_server_role()) {
                        case ROLE_DOMAIN_PDC:
                        case ROLE_DOMAIN_BDC:
                                name = get_global_sam_name();
                                sid = get_global_sam_sid();
                                break;
                        case ROLE_DOMAIN_MEMBER:
                                name = lp_workgroup();
                                /* We need to return the Domain SID here. */
                                if (secrets_fetch_domain_sid(lp_workgroup(), &domain_sid))
                                        sid = &domain_sid;
                                else
                                        return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
                                break;
                        case ROLE_STANDALONE:
                                name = lp_workgroup();
                                sid = NULL;
                                break;
                        default:
                                return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
                }
                init_dom_query(&r_u->dom.id3, name, sid);
                break;
        case 0x05:
                /* check if the user have enough rights */
                if (!(handle->access & POLICY_VIEW_LOCAL_INFORMATION))
                        return NT_STATUS_ACCESS_DENIED;

                /* Request PolicyAccountDomainInformation. */
                name = get_global_sam_name();
                sid = get_global_sam_sid();
                init_dom_query(&r_u->dom.id5, name, sid);
                break;
        case 0x06:
                /* check if the user have enough rights */
                if (!(handle->access & POLICY_VIEW_LOCAL_INFORMATION))
                        return NT_STATUS_ACCESS_DENIED;

                switch (lp_server_role()) {
                        case ROLE_DOMAIN_BDC:
                                /*
                                 * only a BDC is a backup controller
                                 * of the domain, it controls.
                                 */
                                info->id6.server_role = 2;
                                break;
                        default:
                                /*
                                 * any other role is a primary
                                 * of the domain, it controls.
                                 */
                                info->id6.server_role = 3;
                                break; 
                }
                break;
        default:
                DEBUG(0,("_lsa_query_info: unknown info level in Lsa Query: %d\n", q_u->info_class));
                r_u->status = NT_STATUS_INVALID_INFO_CLASS;
                break;
        }

        if (NT_STATUS_IS_OK(r_u->status)) {
                r_u->undoc_buffer = 0x22000000; /* bizarre */
                r_u->info_class = q_u->info_class;
        }

        return r_u->status;
}

/***************************************************************************
 _lsa_lookup_sids
 ***************************************************************************/

NTSTATUS _lsa_lookup_sids(pipes_struct *p, LSA_Q_LOOKUP_SIDS *q_u, LSA_R_LOOKUP_SIDS *r_u)
{
        struct lsa_info *handle;
        DOM_SID2 *sid = q_u->sids.sid;
        int num_entries = q_u->sids.num_entries;
        DOM_R_REF *ref = NULL;
        LSA_TRANS_NAME_ENUM *names = NULL;
        uint32 mapped_count = 0;

        if (num_entries >  MAX_LOOKUP_SIDS) {
                num_entries = 0;
                DEBUG(5,("_lsa_lookup_sids: limit of %d exceeded, truncating SID lookup list to %d\n", MAX_LOOKUP_SIDS, num_entries));
                r_u->status = NT_STATUS_NONE_MAPPED;
        }

        ref = TALLOC_ZERO_P(p->mem_ctx, DOM_R_REF);
        names = TALLOC_ZERO_P(p->mem_ctx, LSA_TRANS_NAME_ENUM);

        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle)) {
                r_u->status = NT_STATUS_INVALID_HANDLE;
                goto done;
        }

        /* check if the user have enough rights */
        if (!(handle->access & POLICY_LOOKUP_NAMES)) {
                r_u->status = NT_STATUS_ACCESS_DENIED;
                goto done;
        }
        if (!ref || !names)
                return NT_STATUS_NO_MEMORY;

done:

        /* set up the LSA Lookup SIDs response */
        init_lsa_trans_names(p->mem_ctx, ref, names, num_entries, sid, &mapped_count);
        if (NT_STATUS_IS_OK(r_u->status)) {
                if (mapped_count == 0)
                        r_u->status = NT_STATUS_NONE_MAPPED;
                else if (mapped_count != num_entries)
                        r_u->status = STATUS_SOME_UNMAPPED;
        }
        init_reply_lookup_sids(r_u, ref, names, mapped_count);

        return r_u->status;
}

/***************************************************************************
lsa_reply_lookup_names
 ***************************************************************************/

NTSTATUS _lsa_lookup_names(pipes_struct *p,LSA_Q_LOOKUP_NAMES *q_u, LSA_R_LOOKUP_NAMES *r_u)
{
        struct lsa_info *handle;
        UNISTR2 *names = q_u->uni_name;
        int num_entries = q_u->num_entries;
        DOM_R_REF *ref;
        DOM_RID2 *rids;
        uint32 mapped_count = 0;

        if (num_entries >  MAX_LOOKUP_SIDS) {
                num_entries = MAX_LOOKUP_SIDS;
                DEBUG(5,("_lsa_lookup_names: truncating name lookup list to %d\n", num_entries));
        }
                
        ref = TALLOC_ZERO_P(p->mem_ctx, DOM_R_REF);
        rids = TALLOC_ZERO_ARRAY(p->mem_ctx, DOM_RID2, num_entries);

        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle)) {
                r_u->status = NT_STATUS_INVALID_HANDLE;
                goto done;
        }

        /* check if the user have enough rights */
        if (!(handle->access & POLICY_LOOKUP_NAMES)) {
                r_u->status = NT_STATUS_ACCESS_DENIED;
                goto done;
        }

        if (!ref || !rids)
                return NT_STATUS_NO_MEMORY;

done:

        /* set up the LSA Lookup RIDs response */
        init_lsa_rid2s(ref, rids, num_entries, names, &mapped_count, p->endian);
        if (NT_STATUS_IS_OK(r_u->status)) {
                if (mapped_count == 0)
                        r_u->status = NT_STATUS_NONE_MAPPED;
                else if (mapped_count != num_entries)
                        r_u->status = STATUS_SOME_UNMAPPED;
        }
        init_reply_lookup_names(r_u, ref, num_entries, rids, mapped_count);

        return r_u->status;
}

/***************************************************************************
 _lsa_close. Also weird - needs to check if lsa handle is correct. JRA.
 ***************************************************************************/

NTSTATUS _lsa_close(pipes_struct *p, LSA_Q_CLOSE *q_u, LSA_R_CLOSE *r_u)
{
        if (!find_policy_by_hnd(p, &q_u->pol, NULL))
                return NT_STATUS_INVALID_HANDLE;

        close_policy_hnd(p, &q_u->pol);
        return NT_STATUS_OK;
}

/***************************************************************************
  "No more secrets Marty...." :-).
 ***************************************************************************/

NTSTATUS _lsa_open_secret(pipes_struct *p, LSA_Q_OPEN_SECRET *q_u, LSA_R_OPEN_SECRET *r_u)
{
        return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}

/***************************************************************************
_lsa_enum_privs.
 ***************************************************************************/

NTSTATUS _lsa_enum_privs(pipes_struct *p, LSA_Q_ENUM_PRIVS *q_u, LSA_R_ENUM_PRIVS *r_u)
{
        struct lsa_info *handle;
        uint32 i;
        uint32 enum_context = q_u->enum_context;
        int num_privs = count_all_privileges();
        LSA_PRIV_ENTRY *entries = NULL;
        LUID_ATTR luid;

        /* remember that the enum_context starts at 0 and not 1 */

        if ( enum_context >= num_privs )
                return NT_STATUS_NO_MORE_ENTRIES;
                
        DEBUG(10,("_lsa_enum_privs: enum_context:%d total entries:%d\n", 
                enum_context, num_privs));
        
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle))
                return NT_STATUS_INVALID_HANDLE;

        /* check if the user have enough rights
           I don't know if it's the right one. not documented.  */

        if (!(handle->access & POLICY_VIEW_LOCAL_INFORMATION))
                return NT_STATUS_ACCESS_DENIED;

        if ( !(entries = TALLOC_ZERO_ARRAY(p->mem_ctx, LSA_PRIV_ENTRY, num_privs )) )
                return NT_STATUS_NO_MEMORY;

        for (i = 0; i < num_privs; i++) {
                if( i < enum_context) {
                        init_unistr2(&entries[i].name, NULL, UNI_FLAGS_NONE);
                        init_uni_hdr(&entries[i].hdr_name, &entries[i].name);
                        
                        entries[i].luid_low = 0;
                        entries[i].luid_high = 0;
                } else {
                        init_unistr2(&entries[i].name, privs[i].name, UNI_FLAGS_NONE);
                        init_uni_hdr(&entries[i].hdr_name, &entries[i].name);
                        
                        luid = get_privilege_luid( &privs[i].se_priv );
                        
                        entries[i].luid_low = luid.luid.low;
                        entries[i].luid_high = luid.luid.high;
                }
        }

        enum_context = num_privs;
        
        init_lsa_r_enum_privs(r_u, enum_context, num_privs, entries);

        return NT_STATUS_OK;
}

/***************************************************************************
_lsa_priv_get_dispname.
 ***************************************************************************/

NTSTATUS _lsa_priv_get_dispname(pipes_struct *p, LSA_Q_PRIV_GET_DISPNAME *q_u, LSA_R_PRIV_GET_DISPNAME *r_u)
{
        struct lsa_info *handle;
        fstring name_asc;
        const char *description;

        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle))
                return NT_STATUS_INVALID_HANDLE;

        /* check if the user have enough rights */

        /*
         * I don't know if it's the right one. not documented.
         */
        if (!(handle->access & POLICY_VIEW_LOCAL_INFORMATION))
                return NT_STATUS_ACCESS_DENIED;

        unistr2_to_ascii(name_asc, &q_u->name, sizeof(name_asc));

        DEBUG(10,("_lsa_priv_get_dispname: name = %s\n", name_asc));

        description = get_privilege_dispname( name_asc );
        
        if ( description ) {
                DEBUG(10,("_lsa_priv_get_dispname: display name = %s\n", description));
                
                init_unistr2(&r_u->desc, description, UNI_FLAGS_NONE);
                init_uni_hdr(&r_u->hdr_desc, &r_u->desc);

                r_u->ptr_info = 0xdeadbeef;
                r_u->lang_id = q_u->lang_id;
                
                return NT_STATUS_OK;
        } else {
                DEBUG(10,("_lsa_priv_get_dispname: doesn't exist\n"));
                
                r_u->ptr_info = 0;
                
                return NT_STATUS_NO_SUCH_PRIVILEGE;
        }
}

/***************************************************************************
_lsa_enum_accounts.
 ***************************************************************************/

NTSTATUS _lsa_enum_accounts(pipes_struct *p, LSA_Q_ENUM_ACCOUNTS *q_u, LSA_R_ENUM_ACCOUNTS *r_u)
{
        struct lsa_info *handle;
        DOM_SID *sid_list;
        int i, j, num_entries;
        LSA_SID_ENUM *sids=&r_u->sids;
        NTSTATUS ret;

        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle))
                return NT_STATUS_INVALID_HANDLE;

        if (!(handle->access & POLICY_VIEW_LOCAL_INFORMATION))
                return NT_STATUS_ACCESS_DENIED;

        sid_list = NULL;
        num_entries = 0;

        /* The only way we can currently find out all the SIDs that have been
           privileged is to scan all privileges */

        if (!NT_STATUS_IS_OK(ret = privilege_enumerate_accounts(&sid_list, &num_entries))) {
                return ret;
        }

        if (q_u->enum_context >= num_entries)
                return NT_STATUS_NO_MORE_ENTRIES;

        sids->ptr_sid = TALLOC_ZERO_ARRAY(p->mem_ctx, uint32, num_entries-q_u->enum_context);
        sids->sid = TALLOC_ZERO_ARRAY(p->mem_ctx, DOM_SID2, num_entries-q_u->enum_context);

        if (sids->ptr_sid==NULL || sids->sid==NULL) {
                SAFE_FREE(sid_list);
                return NT_STATUS_NO_MEMORY;
        }

        for (i = q_u->enum_context, j = 0; i < num_entries; i++, j++) {
                init_dom_sid2(&(*sids).sid[j], &sid_list[i]);
                (*sids).ptr_sid[j] = 1;
        }

        SAFE_FREE(sid_list);

        init_lsa_r_enum_accounts(r_u, num_entries);

        return NT_STATUS_OK;
}


NTSTATUS _lsa_unk_get_connuser(pipes_struct *p, LSA_Q_UNK_GET_CONNUSER *q_u, LSA_R_UNK_GET_CONNUSER *r_u)
{
        fstring username, domname;
        user_struct *vuser = get_valid_user_struct(p->vuid);
  
        if (vuser == NULL)
                return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
  
        fstrcpy(username, vuser->user.smb_name);
        fstrcpy(domname, vuser->user.domain);
  
        r_u->ptr_user_name = 1;
        init_unistr2(&r_u->uni2_user_name, username, UNI_STR_TERMINATE);
        init_uni_hdr(&r_u->hdr_user_name, &r_u->uni2_user_name);

        r_u->unk1 = 1;
  
        r_u->ptr_dom_name = 1;
        init_unistr2(&r_u->uni2_dom_name, domname,  UNI_STR_TERMINATE);
        init_uni_hdr(&r_u->hdr_dom_name, &r_u->uni2_dom_name);

        r_u->status = NT_STATUS_OK;
  
        return r_u->status;
}

/***************************************************************************
 Lsa Create Account 
 ***************************************************************************/

NTSTATUS _lsa_create_account(pipes_struct *p, LSA_Q_CREATEACCOUNT *q_u, LSA_R_CREATEACCOUNT *r_u)
{
        struct lsa_info *handle;
        struct lsa_info *info;

        /* find the connection policy handle. */
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle))
                return NT_STATUS_INVALID_HANDLE;

        /* check if the user have enough rights */

        /*
         * I don't know if it's the right one. not documented.
         * but guessed with rpcclient.
         */
        if (!(handle->access & POLICY_GET_PRIVATE_INFORMATION))
                return NT_STATUS_ACCESS_DENIED;

        /* check to see if the pipe_user is a Domain Admin since 
           account_pol.tdb was already opened as root, this is all we have */
           
        if ( !nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS ) )
                return NT_STATUS_ACCESS_DENIED;
                
        if ( is_privileged_sid( &q_u->sid.sid ) )
                return NT_STATUS_OBJECT_NAME_COLLISION;

        /* associate the user/group SID with the (unique) handle. */
        
        if ((info = SMB_MALLOC_P(struct lsa_info)) == NULL)
                return NT_STATUS_NO_MEMORY;

        ZERO_STRUCTP(info);
        info->sid = q_u->sid.sid;
        info->access = q_u->access;

        /* get a (unique) handle.  open a policy on it. */
        if (!create_policy_hnd(p, &r_u->pol, free_lsa_info, (void *)info))
                return NT_STATUS_OBJECT_NAME_NOT_FOUND;

        return privilege_create_account( &info->sid );
}


/***************************************************************************
 Lsa Open Account
 ***************************************************************************/

NTSTATUS _lsa_open_account(pipes_struct *p, LSA_Q_OPENACCOUNT *q_u, LSA_R_OPENACCOUNT *r_u)
{
        struct lsa_info *handle;
        struct lsa_info *info;

        /* find the connection policy handle. */
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle))
                return NT_STATUS_INVALID_HANDLE;

        /* check if the user have enough rights */

        /*
         * I don't know if it's the right one. not documented.
         * but guessed with rpcclient.
         */
        if (!(handle->access & POLICY_GET_PRIVATE_INFORMATION))
                return NT_STATUS_ACCESS_DENIED;

        /* TODO: Fis the parsing routine before reenabling this check! */
        #if 0
        if (!lookup_sid(&handle->sid, dom_name, name, &type))
                return NT_STATUS_ACCESS_DENIED;
        #endif
        /* associate the user/group SID with the (unique) handle. */
        if ((info = SMB_MALLOC_P(struct lsa_info)) == NULL)
                return NT_STATUS_NO_MEMORY;

        ZERO_STRUCTP(info);
        info->sid = q_u->sid.sid;
        info->access = q_u->access;

        /* get a (unique) handle.  open a policy on it. */
        if (!create_policy_hnd(p, &r_u->pol, free_lsa_info, (void *)info))
                return NT_STATUS_OBJECT_NAME_NOT_FOUND;

        return NT_STATUS_OK;
}

/***************************************************************************
 For a given SID, enumerate all the privilege this account has.
 ***************************************************************************/

NTSTATUS _lsa_enum_privsaccount(pipes_struct *p, prs_struct *ps, LSA_Q_ENUMPRIVSACCOUNT *q_u, LSA_R_ENUMPRIVSACCOUNT *r_u)
{
        struct lsa_info *info=NULL;
        SE_PRIV mask;
        PRIVILEGE_SET privileges;

        /* find the connection policy handle. */
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;

        if ( !get_privileges_for_sids( &mask, &info->sid, 1 ) ) 
                return NT_STATUS_OBJECT_NAME_NOT_FOUND;

        privilege_set_init( &privileges );

        if ( se_priv_to_privilege_set( &privileges, &mask ) ) {

                DEBUG(10,("_lsa_enum_privsaccount: %s has %d privileges\n", 
                        sid_string_static(&info->sid), privileges.count));

                r_u->status = init_lsa_r_enum_privsaccount(ps->mem_ctx, r_u, privileges.set, privileges.count, 0);
        }
        else
                r_u->status = NT_STATUS_NO_SUCH_PRIVILEGE;

        privilege_set_free( &privileges );

        return r_u->status;
}

/***************************************************************************
 
 ***************************************************************************/

NTSTATUS _lsa_getsystemaccount(pipes_struct *p, LSA_Q_GETSYSTEMACCOUNT *q_u, LSA_R_GETSYSTEMACCOUNT *r_u)
{
        struct lsa_info *info=NULL;
        fstring name, dom_name;
        enum SID_NAME_USE type;

        /* find the connection policy handle. */

        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;

        if (!lookup_sid(&info->sid, dom_name, name, &type))
                return NT_STATUS_ACCESS_DENIED;

        /*
          0x01 -> Log on locally
          0x02 -> Access this computer from network
          0x04 -> Log on as a batch job
          0x10 -> Log on as a service
          
          they can be ORed together
        */

        r_u->access = PR_LOG_ON_LOCALLY | PR_ACCESS_FROM_NETWORK;

        return NT_STATUS_OK;
}

/***************************************************************************
  update the systemaccount information
 ***************************************************************************/

NTSTATUS _lsa_setsystemaccount(pipes_struct *p, LSA_Q_SETSYSTEMACCOUNT *q_u, LSA_R_SETSYSTEMACCOUNT *r_u)
{
        struct lsa_info *info=NULL;
        GROUP_MAP map;
        r_u->status = NT_STATUS_OK;

        /* find the connection policy handle. */
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;

        /* check to see if the pipe_user is a Domain Admin since 
           account_pol.tdb was already opened as root, this is all we have */
           
        if ( !nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS ) )
                return NT_STATUS_ACCESS_DENIED;

        if (!pdb_getgrsid(&map, info->sid))
                return NT_STATUS_NO_SUCH_GROUP;

        if(!pdb_update_group_mapping_entry(&map))
                return NT_STATUS_NO_SUCH_GROUP;

        return r_u->status;
}

/***************************************************************************
 For a given SID, add some privileges.
 ***************************************************************************/

NTSTATUS _lsa_addprivs(pipes_struct *p, LSA_Q_ADDPRIVS *q_u, LSA_R_ADDPRIVS *r_u)
{
        struct lsa_info *info = NULL;
        SE_PRIV mask;
        PRIVILEGE_SET *set = NULL;
        struct current_user user;

        /* find the connection policy handle. */
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;
                
        /* check to see if the pipe_user is root or a Domain Admin since 
           account_pol.tdb was already opened as root, this is all we have */
           
        get_current_user( &user, p );
        if ( user.uid != sec_initial_uid() 
                && !nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS ) )
        {
                return NT_STATUS_ACCESS_DENIED;
        }

        set = &q_u->set;

        if ( !privilege_set_to_se_priv( &mask, set ) )
                return NT_STATUS_NO_SUCH_PRIVILEGE;

        if ( !grant_privilege( &info->sid, &mask ) ) {
                DEBUG(3,("_lsa_addprivs: grant_privilege(%s) failed!\n",
                        sid_string_static(&info->sid) ));
                DEBUG(3,("Privilege mask:\n"));
                dump_se_priv( DBGC_ALL, 3, &mask );
                return NT_STATUS_NO_SUCH_PRIVILEGE;
        }

        return NT_STATUS_OK;
}

/***************************************************************************
 For a given SID, remove some privileges.
 ***************************************************************************/

NTSTATUS _lsa_removeprivs(pipes_struct *p, LSA_Q_REMOVEPRIVS *q_u, LSA_R_REMOVEPRIVS *r_u)
{
        struct lsa_info *info = NULL;
        SE_PRIV mask;
        PRIVILEGE_SET *set = NULL;
        struct current_user user;

        /* find the connection policy handle. */
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;

        /* check to see if the pipe_user is root or a Domain Admin since 
           account_pol.tdb was already opened as root, this is all we have */
           
        get_current_user( &user, p );
        if ( user.uid != sec_initial_uid()
                && !nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS ) ) 
        {
                return NT_STATUS_ACCESS_DENIED;
        }

        set = &q_u->set;

        if ( !privilege_set_to_se_priv( &mask, set ) )
                return NT_STATUS_NO_SUCH_PRIVILEGE;

        if ( !revoke_privilege( &info->sid, &mask ) ) {
                DEBUG(3,("_lsa_removeprivs: revoke_privilege(%s) failed!\n",
                        sid_string_static(&info->sid) ));
                DEBUG(3,("Privilege mask:\n"));
                dump_se_priv( DBGC_ALL, 3, &mask );
                return NT_STATUS_NO_SUCH_PRIVILEGE;
        }

        return NT_STATUS_OK;
}

/***************************************************************************
 For a given SID, remove some privileges.
 ***************************************************************************/

NTSTATUS _lsa_query_secobj(pipes_struct *p, LSA_Q_QUERY_SEC_OBJ *q_u, LSA_R_QUERY_SEC_OBJ *r_u)
{
        struct lsa_info *handle=NULL;
        SEC_DESC *psd = NULL;
        size_t sd_size;
        NTSTATUS status;

        r_u->status = NT_STATUS_OK;

        /* find the connection policy handle. */
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle))
                return NT_STATUS_INVALID_HANDLE;

        /* check if the user have enough rights */
        if (!(handle->access & POLICY_VIEW_LOCAL_INFORMATION))
                return NT_STATUS_ACCESS_DENIED;


        switch (q_u->sec_info) {
        case 1:
                /* SD contains only the owner */

                status=lsa_get_generic_sd(p->mem_ctx, &psd, &sd_size);
                if(!NT_STATUS_IS_OK(status))
                        return NT_STATUS_NO_MEMORY;


                if((r_u->buf = make_sec_desc_buf(p->mem_ctx, sd_size, psd)) == NULL)
                        return NT_STATUS_NO_MEMORY;
                break;
        case 4:
                /* SD contains only the ACL */

                status=lsa_get_generic_sd(p->mem_ctx, &psd, &sd_size);
                if(!NT_STATUS_IS_OK(status))
                        return NT_STATUS_NO_MEMORY;

                if((r_u->buf = make_sec_desc_buf(p->mem_ctx, sd_size, psd)) == NULL)
                        return NT_STATUS_NO_MEMORY;
                break;
        default:
                return NT_STATUS_INVALID_LEVEL;
        }

        r_u->ptr=1;

        return r_u->status;
}

#if 0   /* AD DC work in ongoing in Samba 4 */

/***************************************************************************
 ***************************************************************************/

NTSTATUS _lsa_query_info2(pipes_struct *p, LSA_Q_QUERY_INFO2 *q_u, LSA_R_QUERY_INFO2 *r_u)
{
        struct lsa_info *handle;
        const char *nb_name;
        char *dns_name = NULL;
        char *forest_name = NULL;
        DOM_SID *sid = NULL;
        struct uuid guid;
        fstring dnsdomname;

        ZERO_STRUCT(guid);
        r_u->status = NT_STATUS_OK;

        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&handle))
                return NT_STATUS_INVALID_HANDLE;

        switch (q_u->info_class) {
        case 0x0c:
                /* check if the user have enough rights */
                if (!(handle->access & POLICY_VIEW_LOCAL_INFORMATION))
                        return NT_STATUS_ACCESS_DENIED;

                /* Request PolicyPrimaryDomainInformation. */
                switch (lp_server_role()) {
                        case ROLE_DOMAIN_PDC:
                        case ROLE_DOMAIN_BDC:
                                nb_name = get_global_sam_name();
                                /* ugly temp hack for these next two */

                                /* This should be a 'netbios domain -> DNS domain' mapping */
                                dnsdomname[0] = '\0';
                                get_mydnsdomname(dnsdomname);
                                strlower_m(dnsdomname);
                                
                                dns_name = dnsdomname;
                                forest_name = dnsdomname;

                                sid = get_global_sam_sid();
                                secrets_fetch_domain_guid(lp_workgroup(), &guid);
                                break;
                        default:
                                return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
                }
                init_dns_dom_info(&r_u->info.dns_dom_info, nb_name, dns_name, 
                                  forest_name,&guid,sid);
                break;
        default:
                DEBUG(0,("_lsa_query_info2: unknown info level in Lsa Query: %d\n", q_u->info_class));
                r_u->status = NT_STATUS_INVALID_INFO_CLASS;
                break;
        }

        if (NT_STATUS_IS_OK(r_u->status)) {
                r_u->ptr = 0x1;
                r_u->info_class = q_u->info_class;
        }

        return r_u->status;
}
#endif  /* AD DC work in ongoing in Samba 4 */

/***************************************************************************
 ***************************************************************************/

NTSTATUS _lsa_add_acct_rights(pipes_struct *p, LSA_Q_ADD_ACCT_RIGHTS *q_u, LSA_R_ADD_ACCT_RIGHTS *r_u)
{
        struct lsa_info *info = NULL;
        int i = 0;
        DOM_SID sid;
        fstring privname;
        UNISTR2_ARRAY *uni_privnames = &q_u->rights;
        struct current_user user;
        

        /* find the connection policy handle. */
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;
                
        /* check to see if the pipe_user is a Domain Admin since 
           account_pol.tdb was already opened as root, this is all we have */
           
        get_current_user( &user, p );
        if ( user.uid != sec_initial_uid()
                && !nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS ) ) 
        {
                return NT_STATUS_ACCESS_DENIED;
        }

        /* according to an NT4 PDC, you can add privileges to SIDs even without
           call_lsa_create_account() first.  And you can use any arbitrary SID. */
           
        sid_copy( &sid, &q_u->sid.sid );
        
        /* just a little sanity check */
        
        if ( q_u->count != uni_privnames->count ) {
                DEBUG(0,("_lsa_add_acct_rights: count != number of UNISTR2 elements!\n"));
                return NT_STATUS_INVALID_HANDLE;        
        }
                
        for ( i=0; i<q_u->count; i++ ) {
                unistr2_to_ascii( privname, &uni_privnames->strings[i].string, sizeof(fstring)-1 );
                
                /* only try to add non-null strings */
                
                if ( *privname && !grant_privilege_by_name( &sid, privname ) ) {
                        DEBUG(2,("_lsa_add_acct_rights: Failed to add privilege [%s]\n", privname ));
                        return NT_STATUS_NO_SUCH_PRIVILEGE;
                }
        }

        return NT_STATUS_OK;
}

/***************************************************************************
 ***************************************************************************/

NTSTATUS _lsa_remove_acct_rights(pipes_struct *p, LSA_Q_REMOVE_ACCT_RIGHTS *q_u, LSA_R_REMOVE_ACCT_RIGHTS *r_u)
{
        struct lsa_info *info = NULL;
        int i = 0;
        DOM_SID sid;
        fstring privname;
        UNISTR2_ARRAY *uni_privnames = &q_u->rights;
        struct current_user user;
        

        /* find the connection policy handle. */
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;
                
        /* check to see if the pipe_user is a Domain Admin since 
           account_pol.tdb was already opened as root, this is all we have */
           
        get_current_user( &user, p );
        if ( user.uid != sec_initial_uid()
                && !nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS ) )
        {
                return NT_STATUS_ACCESS_DENIED;
        }

        sid_copy( &sid, &q_u->sid.sid );

        if ( q_u->removeall ) {
                if ( !revoke_all_privileges( &sid ) ) 
                        return NT_STATUS_ACCESS_DENIED;
        
                return NT_STATUS_OK;
        }
        
        /* just a little sanity check */
        
        if ( q_u->count != uni_privnames->count ) {
                DEBUG(0,("_lsa_add_acct_rights: count != number of UNISTR2 elements!\n"));
                return NT_STATUS_INVALID_HANDLE;        
        }
                
        for ( i=0; i<q_u->count; i++ ) {
                unistr2_to_ascii( privname, &uni_privnames->strings[i].string, sizeof(fstring)-1 );
                
                /* only try to add non-null strings */
                
                if ( *privname && !revoke_privilege_by_name( &sid, privname ) ) {
                        DEBUG(2,("_lsa_remove_acct_rights: Failed to revoke privilege [%s]\n", privname ));
                        return NT_STATUS_NO_SUCH_PRIVILEGE;
                }
        }

        return NT_STATUS_OK;
}


NTSTATUS _lsa_enum_acct_rights(pipes_struct *p, LSA_Q_ENUM_ACCT_RIGHTS *q_u, LSA_R_ENUM_ACCT_RIGHTS *r_u)
{
        struct lsa_info *info = NULL;
        DOM_SID sid;
        PRIVILEGE_SET privileges;
        SE_PRIV mask;
        

        /* find the connection policy handle. */
        
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;
                
        /* according to an NT4 PDC, you can add privileges to SIDs even without
           call_lsa_create_account() first.  And you can use any arbitrary SID. */
           
        sid_copy( &sid, &q_u->sid.sid );
        
        if ( !get_privileges_for_sids( &mask, &sid, 1 ) )
                return NT_STATUS_OBJECT_NAME_NOT_FOUND;

        privilege_set_init( &privileges );

        if ( se_priv_to_privilege_set( &privileges, &mask ) ) {

                DEBUG(10,("_lsa_enum_acct_rights: %s has %d privileges\n", 
                        sid_string_static(&sid), privileges.count));

                r_u->status = init_r_enum_acct_rights( r_u, &privileges );
        }
        else 
                r_u->status = NT_STATUS_NO_SUCH_PRIVILEGE;

        privilege_set_free( &privileges );

        return r_u->status;
}


NTSTATUS _lsa_lookup_priv_value(pipes_struct *p, LSA_Q_LOOKUP_PRIV_VALUE *q_u, LSA_R_LOOKUP_PRIV_VALUE *r_u)
{
        struct lsa_info *info = NULL;
        fstring name;
        LUID_ATTR priv_luid;
        SE_PRIV mask;
        
        /* find the connection policy handle. */
        
        if (!find_policy_by_hnd(p, &q_u->pol, (void **)&info))
                return NT_STATUS_INVALID_HANDLE;
                
        unistr2_to_ascii(name, &q_u->privname.unistring, sizeof(name));
        
        DEBUG(10,("_lsa_priv_get_dispname: name = %s\n", name));

        if ( !se_priv_from_name( name, &mask ) )
                return NT_STATUS_NO_SUCH_PRIVILEGE;

        priv_luid = get_privilege_luid( &mask );

        r_u->luid.low  = priv_luid.luid.low;
        r_u->luid.high = priv_luid.luid.high;
                

        return NT_STATUS_OK;
}