Initial import
[samba] / source / rpc_server / srv_samr_nt.c
diff --git a/source/rpc_server/srv_samr_nt.c b/source/rpc_server/srv_samr_nt.c
new file mode 100644 (file)
index 0000000..4e6ebea
--- /dev/null
@@ -0,0 +1,4881 @@
+/*
+ *  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) Marc Jacobsen                            1999,
+ *  Copyright (C) Jeremy Allison                    2001-2005,
+ *  Copyright (C) Jean François Micouleau           1998-2001,
+ *  Copyright (C) Jim McDonough <jmcd@us.ibm.com>   2002,
+ *  Copyright (C) Gerald (Jerry) Carter             2003-2004,
+ *  Copyright (C) Simo Sorce                        2003.
+ *  Copyright (C) Volker Lendecke                  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 SAMR code.
+ */
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_RPC_SRV
+
+#define SAMR_USR_RIGHTS_WRITE_PW \
+               ( READ_CONTROL_ACCESS           | \
+                 SA_RIGHT_USER_CHANGE_PASSWORD | \
+                 SA_RIGHT_USER_SET_LOC_COM )
+
+#define DISP_INFO_CACHE_TIMEOUT 10
+
+typedef struct disp_info {
+       struct disp_info *next, *prev;
+       TALLOC_CTX *mem_ctx;
+       DOM_SID sid; /* identify which domain this is. */
+       BOOL builtin_domain; /* Quick flag to check if this is the builtin domain. */
+       struct pdb_search *users; /* querydispinfo 1 and 4 */
+       struct pdb_search *machines; /* querydispinfo 2 */
+       struct pdb_search *groups; /* querydispinfo 3 and 5, enumgroups */
+       struct pdb_search *aliases; /* enumaliases */
+
+       uint16 enum_acb_mask;
+       struct pdb_search *enum_users; /* enumusers with a mask */
+
+
+       smb_event_id_t di_cache_timeout_event; /* cache idle timeout handler. */
+} DISP_INFO;
+
+/* We keep a static list of these by SID as modern clients close down
+   all resources between each request in a complete enumeration. */
+
+static DISP_INFO *disp_info_list;
+
+struct samr_info {
+       /* for use by the \PIPE\samr policy */
+       DOM_SID sid;
+       BOOL builtin_domain; /* Quick flag to check if this is the builtin domain. */
+       uint32 status; /* some sort of flag.  best to record it.  comes from opnum 0x39 */
+       uint32 acc_granted;
+       DISP_INFO *disp_info;
+       TALLOC_CTX *mem_ctx;
+};
+
+static struct generic_mapping sam_generic_mapping = {
+       GENERIC_RIGHTS_SAM_READ,
+       GENERIC_RIGHTS_SAM_WRITE,
+       GENERIC_RIGHTS_SAM_EXECUTE,
+       GENERIC_RIGHTS_SAM_ALL_ACCESS};
+static struct generic_mapping dom_generic_mapping = {
+       GENERIC_RIGHTS_DOMAIN_READ,
+       GENERIC_RIGHTS_DOMAIN_WRITE,
+       GENERIC_RIGHTS_DOMAIN_EXECUTE,
+       GENERIC_RIGHTS_DOMAIN_ALL_ACCESS};
+static struct generic_mapping usr_generic_mapping = {
+       GENERIC_RIGHTS_USER_READ,
+       GENERIC_RIGHTS_USER_WRITE,
+       GENERIC_RIGHTS_USER_EXECUTE,
+       GENERIC_RIGHTS_USER_ALL_ACCESS};
+static struct generic_mapping grp_generic_mapping = {
+       GENERIC_RIGHTS_GROUP_READ,
+       GENERIC_RIGHTS_GROUP_WRITE,
+       GENERIC_RIGHTS_GROUP_EXECUTE,
+       GENERIC_RIGHTS_GROUP_ALL_ACCESS};
+static struct generic_mapping ali_generic_mapping = {
+       GENERIC_RIGHTS_ALIAS_READ,
+       GENERIC_RIGHTS_ALIAS_WRITE,
+       GENERIC_RIGHTS_ALIAS_EXECUTE,
+       GENERIC_RIGHTS_ALIAS_ALL_ACCESS};
+
+/*******************************************************************
+*******************************************************************/
+
+static NTSTATUS make_samr_object_sd( TALLOC_CTX *ctx, SEC_DESC **psd, size_t *sd_size,
+                                     struct generic_mapping *map,
+                                    DOM_SID *sid, uint32 sid_access )
+{
+       DOM_SID domadmin_sid;
+       SEC_ACE ace[5];         /* at most 5 entries */
+       SEC_ACCESS mask;
+       size_t i = 0;
+
+       SEC_ACL *psa = NULL;
+
+       /* basic access for Everyone */
+
+       init_sec_access(&mask, map->generic_execute | map->generic_read );
+       init_sec_ace(&ace[i++], &global_sid_World, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
+
+       /* add Full Access 'BUILTIN\Administrators' and 'BUILTIN\Account Operators */
+
+       init_sec_access(&mask, map->generic_all);
+       
+       init_sec_ace(&ace[i++], &global_sid_Builtin_Administrators, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
+       init_sec_ace(&ace[i++], &global_sid_Builtin_Account_Operators, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
+
+       /* Add Full Access for Domain Admins if we are a DC */
+       
+       if ( IS_DC ) {
+               sid_copy( &domadmin_sid, get_global_sam_sid() );
+               sid_append_rid( &domadmin_sid, DOMAIN_GROUP_RID_ADMINS );
+               init_sec_ace(&ace[i++], &domadmin_sid, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
+       }
+
+       /* if we have a sid, give it some special access */
+
+       if ( sid ) {
+               init_sec_access( &mask, sid_access );
+               init_sec_ace(&ace[i++], sid, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
+}
+
+       /* create the security descriptor */
+
+       if ((psa = make_sec_acl(ctx, NT4_ACL_REVISION, i, ace)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       if ((*psd = make_sec_desc(ctx, SEC_DESC_REVISION, SEC_DESC_SELF_RELATIVE, NULL, NULL, NULL, psa, sd_size)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       return NT_STATUS_OK;
+}
+
+/*******************************************************************
+ Checks if access to an object should be granted, and returns that
+ level of access for further checks.
+********************************************************************/
+
+static NTSTATUS access_check_samr_object( SEC_DESC *psd, NT_USER_TOKEN *token, 
+                                          SE_PRIV *rights, uint32 rights_mask,
+                                          uint32 des_access, uint32 *acc_granted, 
+                                         const char *debug )
+{
+       NTSTATUS status = NT_STATUS_ACCESS_DENIED;
+       uint32 saved_mask = 0;
+
+       /* check privileges; certain SAM access bits should be overridden 
+          by privileges (mostly having to do with creating/modifying/deleting 
+          users and groups) */
+       
+       if ( rights && user_has_any_privilege( token, rights ) ) {
+       
+               saved_mask = (des_access & rights_mask);
+               des_access &= ~saved_mask;
+               
+               DEBUG(4,("access_check_samr_object: user rights access mask [0x%x]\n",
+                       rights_mask));
+       }
+               
+       
+       /* check the security descriptor first */
+       
+       if ( se_access_check(psd, token, des_access, acc_granted, &status) )
+               goto done;
+       
+       /* give root a free pass */
+       
+       if ( geteuid() == sec_initial_uid() ) {
+       
+               DEBUG(4,("%s: ACCESS should be DENIED  (requested: %#010x)\n", debug, des_access));
+               DEBUGADD(4,("but overritten by euid == sec_initial_uid()\n"));
+               
+               *acc_granted = des_access;
+               
+               status = NT_STATUS_OK;
+               goto done;
+       }
+       
+       
+done:
+       /* add in any bits saved during the privilege check (only 
+          matters is status is ok) */
+       
+       *acc_granted |= rights_mask;
+
+       DEBUG(4,("%s: access %s (requested: 0x%08x, granted: 0x%08x)\n", 
+               debug, NT_STATUS_IS_OK(status) ? "GRANTED" : "DENIED", 
+               des_access, *acc_granted));
+       
+       return status;
+}
+
+/*******************************************************************
+ Checks if access to a function can be granted
+********************************************************************/
+
+static NTSTATUS access_check_samr_function(uint32 acc_granted, uint32 acc_required, const char *debug)
+{
+       DEBUG(5,("%s: access check ((granted: %#010x;  required: %#010x)\n",  
+               debug, acc_granted, acc_required));
+
+       /* check the security descriptor first */
+       
+       if ( (acc_granted&acc_required) == acc_required )
+               return NT_STATUS_OK;
+               
+       /* give root a free pass */
+
+       if (geteuid() == sec_initial_uid()) {
+       
+               DEBUG(4,("%s: ACCESS should be DENIED (granted: %#010x;  required: %#010x)\n",
+                       debug, acc_granted, acc_required));
+               DEBUGADD(4,("but overwritten by euid == 0\n"));
+               
+               return NT_STATUS_OK;
+       }
+       
+       DEBUG(2,("%s: ACCESS DENIED (granted: %#010x;  required: %#010x)\n", 
+               debug, acc_granted, acc_required));
+               
+       return NT_STATUS_ACCESS_DENIED;
+}
+
+/*******************************************************************
+ Fetch or create a dispinfo struct.
+********************************************************************/
+
+static DISP_INFO *get_samr_dispinfo_by_sid(DOM_SID *psid, const char *sid_str)
+{
+       TALLOC_CTX *mem_ctx;
+       DISP_INFO *dpi;
+
+       /* There are two cases to consider here:
+          1) The SID is a domain SID and we look for an equality match, or
+          2) This is an account SID and so we return the DISP_INFO* for our 
+             domain */
+
+       if ( psid && sid_check_is_in_our_domain( psid ) ) {
+               DEBUG(10,("get_samr_dispinfo_by_sid: Replacing %s with our domain SID\n",
+                       sid_str));
+               psid = get_global_sam_sid();
+       }
+
+       for (dpi = disp_info_list; dpi; dpi = dpi->next) {
+               if (sid_equal(psid, &dpi->sid)) {
+                       return dpi;
+               }
+       }
+
+       /* This struct is never free'd - I'm using talloc so we
+          can get a list out of smbd using smbcontrol. There will
+          be one of these per SID we're authorative for. JRA. */
+
+       mem_ctx = talloc_init("DISP_INFO for domain sid %s", sid_str);
+
+       if ((dpi = TALLOC_ZERO_P(mem_ctx, DISP_INFO)) == NULL)
+               return NULL;
+
+       dpi->mem_ctx = mem_ctx;
+
+       if (psid) {
+               sid_copy( &dpi->sid, psid);
+               dpi->builtin_domain = sid_check_is_builtin(psid);
+       } else {
+               dpi->builtin_domain = False;
+       }
+
+       DLIST_ADD(disp_info_list, dpi);
+
+       return dpi;
+}
+
+/*******************************************************************
+ Create a samr_info struct.
+********************************************************************/
+
+static struct samr_info *get_samr_info_by_sid(DOM_SID *psid)
+{
+       struct samr_info *info;
+       fstring sid_str;
+       TALLOC_CTX *mem_ctx;
+       
+       if (psid) {
+               sid_to_string(sid_str, psid);
+       } else {
+               fstrcpy(sid_str,"(NULL)");
+       }
+
+       mem_ctx = talloc_init("samr_info for domain sid %s", sid_str);
+
+       if ((info = TALLOC_ZERO_P(mem_ctx, struct samr_info)) == NULL)
+               return NULL;
+
+       DEBUG(10,("get_samr_info_by_sid: created new info for sid %s\n", sid_str));
+       if (psid) {
+               sid_copy( &info->sid, psid);
+               info->builtin_domain = sid_check_is_builtin(psid);
+       } else {
+               DEBUG(10,("get_samr_info_by_sid: created new info for NULL sid.\n"));
+               info->builtin_domain = False;
+       }
+       info->mem_ctx = mem_ctx;
+
+       info->disp_info = get_samr_dispinfo_by_sid(psid, sid_str);
+
+       if (!info->disp_info) {
+               talloc_destroy(mem_ctx);
+               return NULL;
+       }
+
+       return info;
+}
+
+/*******************************************************************
+ Function to free the per SID data.
+ ********************************************************************/
+
+static void free_samr_cache(DISP_INFO *disp_info, const char *sid_str)
+{
+       DEBUG(10,("free_samr_cache: deleting cache for SID %s\n", sid_str));
+
+       /* We need to become root here because the paged search might have to
+        * tell the LDAP server we're not interested in the rest anymore. */
+
+       become_root();
+
+       if (disp_info->users) {
+               DEBUG(10,("free_samr_cache: deleting users cache\n"));
+               pdb_search_destroy(disp_info->users);
+               disp_info->users = NULL;
+       }
+       if (disp_info->machines) {
+               DEBUG(10,("free_samr_cache: deleting machines cache\n"));
+               pdb_search_destroy(disp_info->machines);
+               disp_info->machines = NULL;
+       }
+       if (disp_info->groups) {
+               DEBUG(10,("free_samr_cache: deleting groups cache\n"));
+               pdb_search_destroy(disp_info->groups);
+               disp_info->groups = NULL;
+       }
+       if (disp_info->aliases) {
+               DEBUG(10,("free_samr_cache: deleting aliases cache\n"));
+               pdb_search_destroy(disp_info->aliases);
+               disp_info->aliases = NULL;
+       }
+       if (disp_info->enum_users) {
+               DEBUG(10,("free_samr_cache: deleting enum_users cache\n"));
+               pdb_search_destroy(disp_info->enum_users);
+               disp_info->enum_users = NULL;
+       }
+       disp_info->enum_acb_mask = 0;
+
+       unbecome_root();
+}
+
+/*******************************************************************
+ Function to free the per handle data.
+ ********************************************************************/
+
+static void free_samr_info(void *ptr)
+{
+       struct samr_info *info=(struct samr_info *) ptr;
+
+       /* Only free the dispinfo cache if no one bothered to set up
+          a timeout. */
+
+       if (info->disp_info && info->disp_info->di_cache_timeout_event == (smb_event_id_t)0) {
+               fstring sid_str;
+               sid_to_string(sid_str, &info->disp_info->sid);
+               free_samr_cache(info->disp_info, sid_str);
+       }
+
+       talloc_destroy(info->mem_ctx);
+}
+
+/*******************************************************************
+ Idle event handler. Throw away the disp info cache.
+ ********************************************************************/
+
+static void disp_info_cache_idle_timeout_handler(void **private_data,
+                                       time_t *ev_interval,
+                                       time_t ev_now)
+{
+       fstring sid_str;
+       DISP_INFO *disp_info = (DISP_INFO *)(*private_data);
+
+       sid_to_string(sid_str, &disp_info->sid);
+
+       free_samr_cache(disp_info, sid_str);
+
+       /* Remove the event. */
+       smb_unregister_idle_event(disp_info->di_cache_timeout_event);
+       disp_info->di_cache_timeout_event = (smb_event_id_t)0;
+
+       DEBUG(10,("disp_info_cache_idle_timeout_handler: caching timed out for SID %s at %u\n",
+               sid_str, (unsigned int)ev_now));
+}
+
+/*******************************************************************
+ Setup cache removal idle event handler.
+ ********************************************************************/
+
+static void set_disp_info_cache_timeout(DISP_INFO *disp_info, time_t secs_fromnow)
+{
+       fstring sid_str;
+
+       sid_to_string(sid_str, &disp_info->sid);
+
+       /* Remove any pending timeout and update. */
+
+       if (disp_info->di_cache_timeout_event) {
+               smb_unregister_idle_event(disp_info->di_cache_timeout_event);
+               disp_info->di_cache_timeout_event = (smb_event_id_t)0;
+       }
+
+       DEBUG(10,("set_disp_info_cache_timeout: caching enumeration for SID %s for %u seconds\n",
+               sid_str, (unsigned int)secs_fromnow ));
+
+       disp_info->di_cache_timeout_event =
+               smb_register_idle_event(disp_info_cache_idle_timeout_handler,
+                                       disp_info,
+                                       secs_fromnow);
+}
+
+/*******************************************************************
+ Force flush any cache. We do this on any samr_set_xxx call.
+ We must also remove the timeout handler.
+ ********************************************************************/
+
+static void force_flush_samr_cache(DISP_INFO *disp_info)
+{
+       if (disp_info) {
+               fstring sid_str;
+
+               sid_to_string(sid_str, &disp_info->sid);
+               if (disp_info->di_cache_timeout_event) {
+                       smb_unregister_idle_event(disp_info->di_cache_timeout_event);
+                       disp_info->di_cache_timeout_event = (smb_event_id_t)0;
+                       DEBUG(10,("force_flush_samr_cache: clearing idle event for SID %s\n",
+                               sid_str));
+               }
+               free_samr_cache(disp_info, sid_str);
+       }
+}
+
+/*******************************************************************
+ Ensure password info is never given out. Paranioa... JRA.
+ ********************************************************************/
+
+static void samr_clear_sam_passwd(SAM_ACCOUNT *sam_pass)
+{
+       
+       if (!sam_pass)
+               return;
+
+       /* These now zero out the old password */
+
+       pdb_set_lanman_passwd(sam_pass, NULL, PDB_DEFAULT);
+       pdb_set_nt_passwd(sam_pass, NULL, PDB_DEFAULT);
+}
+
+static uint32 count_sam_users(struct disp_info *info, uint16 acct_flags)
+{
+       struct samr_displayentry *entry;
+
+       if (info->builtin_domain) {
+               /* No users in builtin. */
+               return 0;
+       }
+
+       if (info->users == NULL) {
+               info->users = pdb_search_users(acct_flags);
+               if (info->users == NULL) {
+                       return 0;
+               }
+       }
+       /* Fetch the last possible entry, thus trigger an enumeration */
+       pdb_search_entries(info->users, 0xffffffff, 1, &entry);
+
+       /* Ensure we cache this enumeration. */
+       set_disp_info_cache_timeout(info, DISP_INFO_CACHE_TIMEOUT);
+
+       return info->users->num_entries;
+}
+
+static uint32 count_sam_groups(struct disp_info *info)
+{
+       struct samr_displayentry *entry;
+
+       if (info->builtin_domain) {
+               /* No groups in builtin. */
+               return 0;
+       }
+
+       if (info->groups == NULL) {
+               info->groups = pdb_search_groups();
+               if (info->groups == NULL) {
+                       return 0;
+               }
+       }
+       /* Fetch the last possible entry, thus trigger an enumeration */
+       pdb_search_entries(info->groups, 0xffffffff, 1, &entry);
+
+       /* Ensure we cache this enumeration. */
+       set_disp_info_cache_timeout(info, DISP_INFO_CACHE_TIMEOUT);
+
+       return info->groups->num_entries;
+}
+
+static uint32 count_sam_aliases(struct disp_info *info)
+{
+       struct samr_displayentry *entry;
+
+       if (info->aliases == NULL) {
+               info->aliases = pdb_search_aliases(&info->sid);
+               if (info->aliases == NULL) {
+                       return 0;
+               }
+       }
+       /* Fetch the last possible entry, thus trigger an enumeration */
+       pdb_search_entries(info->aliases, 0xffffffff, 1, &entry);
+
+       /* Ensure we cache this enumeration. */
+       set_disp_info_cache_timeout(info, DISP_INFO_CACHE_TIMEOUT);
+
+       return info->aliases->num_entries;
+}
+
+/*******************************************************************
+ _samr_close_hnd
+ ********************************************************************/
+
+NTSTATUS _samr_close_hnd(pipes_struct *p, SAMR_Q_CLOSE_HND *q_u, SAMR_R_CLOSE_HND *r_u)
+{
+       r_u->status = NT_STATUS_OK;
+
+       /* close the policy handle */
+       if (!close_policy_hnd(p, &q_u->pol))
+               return NT_STATUS_OBJECT_NAME_INVALID;
+
+       DEBUG(5,("samr_reply_close_hnd: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ samr_reply_open_domain
+ ********************************************************************/
+
+NTSTATUS _samr_open_domain(pipes_struct *p, SAMR_Q_OPEN_DOMAIN *q_u, SAMR_R_OPEN_DOMAIN *r_u)
+{
+       struct    samr_info *info;
+       SEC_DESC *psd = NULL;
+       uint32    acc_granted;
+       uint32    des_access = q_u->flags;
+       NTSTATUS  status;
+       size_t    sd_size;
+       SE_PRIV se_rights;
+
+       r_u->status = NT_STATUS_OK;
+
+       /* find the connection policy handle. */
+       
+       if ( !find_policy_by_hnd(p, &q_u->pol, (void**)(void *)&info) )
+               return NT_STATUS_INVALID_HANDLE;
+
+       status = access_check_samr_function( info->acc_granted, 
+               SA_RIGHT_SAM_OPEN_DOMAIN, "_samr_open_domain" );
+               
+       if ( !NT_STATUS_IS_OK(status) )
+               return status;
+
+       /*check if access can be granted as requested by client. */
+       
+       make_samr_object_sd( p->mem_ctx, &psd, &sd_size, &dom_generic_mapping, NULL, 0 );
+       se_map_generic( &des_access, &dom_generic_mapping );
+       
+       se_priv_copy( &se_rights, &se_machine_account );
+       se_priv_add( &se_rights, &se_add_users );
+
+       status = access_check_samr_object( psd, p->pipe_user.nt_user_token, 
+               &se_rights, GENERIC_RIGHTS_DOMAIN_WRITE, des_access, 
+               &acc_granted, "_samr_open_domain" );
+               
+       if ( !NT_STATUS_IS_OK(status) )
+               return status;
+
+       if (!sid_check_is_domain(&q_u->dom_sid.sid) &&
+           !sid_check_is_builtin(&q_u->dom_sid.sid)) {
+               return NT_STATUS_NO_SUCH_DOMAIN;
+       }
+
+       /* associate the domain SID with the (unique) handle. */
+       if ((info = get_samr_info_by_sid(&q_u->dom_sid.sid))==NULL)
+               return NT_STATUS_NO_MEMORY;
+       info->acc_granted = acc_granted;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, &r_u->domain_pol, free_samr_info, (void *)info))
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+       DEBUG(5,("samr_open_domain: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ _samr_get_usrdom_pwinfo
+ ********************************************************************/
+
+NTSTATUS _samr_get_usrdom_pwinfo(pipes_struct *p, SAMR_Q_GET_USRDOM_PWINFO *q_u, SAMR_R_GET_USRDOM_PWINFO *r_u)
+{
+       struct samr_info *info = NULL;
+
+       r_u->status = NT_STATUS_OK;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, &q_u->user_pol, (void **)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       if (!sid_check_is_in_our_domain(&info->sid))
+               return NT_STATUS_OBJECT_TYPE_MISMATCH;
+
+       init_samr_r_get_usrdom_pwinfo(r_u, NT_STATUS_OK);
+
+       DEBUG(5,("_samr_get_usrdom_pwinfo: %d\n", __LINE__));
+
+       /* 
+        * NT sometimes return NT_STATUS_ACCESS_DENIED
+        * I don't know yet why.
+        */
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ _samr_set_sec_obj
+ ********************************************************************/
+
+NTSTATUS _samr_set_sec_obj(pipes_struct *p, SAMR_Q_SET_SEC_OBJ *q_u, SAMR_R_SET_SEC_OBJ *r_u)
+{
+       DEBUG(0,("_samr_set_sec_obj: Not yet implemented!\n"));
+       return NT_STATUS_NOT_IMPLEMENTED;
+}
+
+/*******************************************************************
+********************************************************************/
+
+static BOOL get_lsa_policy_samr_sid( pipes_struct *p, POLICY_HND *pol, 
+                                       DOM_SID *sid, uint32 *acc_granted,
+                                       DISP_INFO **ppdisp_info)
+{
+       struct samr_info *info = NULL;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, pol, (void **)(void *)&info))
+               return False;
+
+       if (!info)
+               return False;
+
+       *sid = info->sid;
+       *acc_granted = info->acc_granted;
+       if (ppdisp_info) {
+               *ppdisp_info = info->disp_info;
+       }
+
+       return True;
+}
+
+/*******************************************************************
+ _samr_query_sec_obj
+ ********************************************************************/
+
+NTSTATUS _samr_query_sec_obj(pipes_struct *p, SAMR_Q_QUERY_SEC_OBJ *q_u, SAMR_R_QUERY_SEC_OBJ *r_u)
+{
+       DOM_SID pol_sid;
+       fstring str_sid;
+       SEC_DESC * psd = NULL;
+       uint32 acc_granted;
+       size_t sd_size;
+
+       r_u->status = NT_STATUS_OK;
+
+       /* Get the SID. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->user_pol, &pol_sid, &acc_granted, NULL))
+               return NT_STATUS_INVALID_HANDLE;
+
+       DEBUG(10,("_samr_query_sec_obj: querying security on SID: %s\n", sid_to_string(str_sid, &pol_sid)));
+
+       /* Check what typ of SID is beeing queried (e.g Domain SID, User SID, Group SID) */
+
+       /* To query the security of the SAM it self an invalid SID with S-0-0 is passed to this function */
+       if (pol_sid.sid_rev_num == 0) {
+               DEBUG(5,("_samr_query_sec_obj: querying security on SAM\n"));
+               r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
+       } else if (sid_equal(&pol_sid,get_global_sam_sid())) { 
+               /* check if it is our domain SID */
+               DEBUG(5,("_samr_query_sec_obj: querying security on Domain with SID: %s\n", sid_to_string(str_sid, &pol_sid)));
+               r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &dom_generic_mapping, NULL, 0);
+       } else if (sid_equal(&pol_sid,&global_sid_Builtin)) {
+               /* check if it is the Builtin  Domain */
+               /* TODO: Builtin probably needs a different SD with restricted write access*/
+               DEBUG(5,("_samr_query_sec_obj: querying security on Builtin Domain with SID: %s\n", sid_to_string(str_sid, &pol_sid)));
+               r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &dom_generic_mapping, NULL, 0);
+       } else if (sid_check_is_in_our_domain(&pol_sid) ||
+                sid_check_is_in_builtin(&pol_sid)) {
+               /* TODO: different SDs have to be generated for aliases groups and users.
+                        Currently all three get a default user SD  */
+               DEBUG(10,("_samr_query_sec_obj: querying security on Object with SID: %s\n", sid_to_string(str_sid, &pol_sid)));
+               r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping, &pol_sid, SAMR_USR_RIGHTS_WRITE_PW);
+       } else {
+               return NT_STATUS_OBJECT_TYPE_MISMATCH;
+       }
+
+       if ((r_u->buf = make_sec_desc_buf(p->mem_ctx, sd_size, psd)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       if (NT_STATUS_IS_OK(r_u->status))
+               r_u->ptr = 1;
+
+       return r_u->status;
+}
+
+/*******************************************************************
+makes a SAM_ENTRY / UNISTR2* structure from a user list.
+********************************************************************/
+
+static NTSTATUS make_user_sam_entry_list(TALLOC_CTX *ctx, SAM_ENTRY **sam_pp,
+                                        UNISTR2 **uni_name_pp,
+                                        uint32 num_entries, uint32 start_idx,
+                                        struct samr_displayentry *entries)
+{
+       uint32 i;
+       SAM_ENTRY *sam;
+       UNISTR2 *uni_name;
+       
+       *sam_pp = NULL;
+       *uni_name_pp = NULL;
+
+       if (num_entries == 0)
+               return NT_STATUS_OK;
+
+       sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_entries);
+
+       uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_entries);
+
+       if (sam == NULL || uni_name == NULL) {
+               DEBUG(0, ("make_user_sam_entry_list: talloc_zero failed!\n"));
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       for (i = 0; i < num_entries; i++) {
+               UNISTR2 uni_temp_name;
+               /*
+                * usrmgr expects a non-NULL terminated string with
+                * trust relationships
+                */
+               if (entries[i].acct_flags & ACB_DOMTRUST) {
+                       init_unistr2(&uni_temp_name, entries[i].account_name,
+                                    UNI_FLAGS_NONE);
+               } else {
+                       init_unistr2(&uni_temp_name, entries[i].account_name,
+                                    UNI_STR_TERMINATE);
+               }
+
+               init_sam_entry(&sam[i], &uni_temp_name, entries[i].rid);
+               copy_unistr2(&uni_name[i], &uni_temp_name);
+       }
+
+       *sam_pp = sam;
+       *uni_name_pp = uni_name;
+       return NT_STATUS_OK;
+}
+
+/*******************************************************************
+ samr_reply_enum_dom_users
+ ********************************************************************/
+
+NTSTATUS _samr_enum_dom_users(pipes_struct *p, SAMR_Q_ENUM_DOM_USERS *q_u, 
+                             SAMR_R_ENUM_DOM_USERS *r_u)
+{
+       struct samr_info *info = NULL;
+       int num_account;
+       uint32 enum_context=q_u->start_idx;
+       enum remote_arch_types ra_type = get_remote_arch();
+       int max_sam_entries = (ra_type == RA_WIN95) ? MAX_SAM_ENTRIES_W95 : MAX_SAM_ENTRIES_W2K;
+       uint32 max_entries = max_sam_entries;
+       struct samr_displayentry *entries = NULL;
+       
+       r_u->status = NT_STATUS_OK;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, 
+                                       SA_RIGHT_DOMAIN_ENUM_ACCOUNTS, 
+                                       "_samr_enum_dom_users"))) {
+               return r_u->status;
+       }
+       
+       DEBUG(5,("_samr_enum_dom_users: %d\n", __LINE__));
+
+       if (info->builtin_domain) {
+               /* No users in builtin. */
+               init_samr_r_enum_dom_users(r_u, q_u->start_idx, 0);
+               DEBUG(5,("_samr_enum_dom_users: No users in BUILTIN\n"));
+               return r_u->status;
+       }
+
+       become_root();
+
+       /* AS ROOT !!!! */
+
+       if ((info->disp_info->enum_users != NULL) &&
+           (info->disp_info->enum_acb_mask != q_u->acb_mask)) {
+               pdb_search_destroy(info->disp_info->enum_users);
+               info->disp_info->enum_users = NULL;
+       }
+
+       if (info->disp_info->enum_users == NULL) {
+               info->disp_info->enum_users = pdb_search_users(q_u->acb_mask);
+               info->disp_info->enum_acb_mask = q_u->acb_mask;
+       }
+
+       if (info->disp_info->enum_users == NULL) {
+               /* END AS ROOT !!!! */
+               unbecome_root();
+               return NT_STATUS_ACCESS_DENIED;
+       }
+
+       num_account = pdb_search_entries(info->disp_info->enum_users,
+                                        enum_context, max_entries,
+                                        &entries);
+
+       /* END AS ROOT !!!! */
+
+       unbecome_root();
+
+       if (num_account == 0) {
+               DEBUG(5, ("_samr_enum_dom_users: enumeration handle over "
+                         "total entries\n"));
+               return NT_STATUS_OK;
+       }
+
+       r_u->status = make_user_sam_entry_list(p->mem_ctx, &r_u->sam,
+                                              &r_u->uni_acct_name, 
+                                              num_account, enum_context,
+                                              entries);
+
+       if (!NT_STATUS_IS_OK(r_u->status))
+               return r_u->status;
+
+       if (max_entries <= num_account) {
+               r_u->status = STATUS_MORE_ENTRIES;
+       } else {
+               r_u->status = NT_STATUS_OK;
+       }
+
+       /* Ensure we cache this enumeration. */
+       set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT);
+
+       DEBUG(5, ("_samr_enum_dom_users: %d\n", __LINE__));
+
+       init_samr_r_enum_dom_users(r_u, q_u->start_idx + num_account,
+                                  num_account);
+
+       DEBUG(5,("_samr_enum_dom_users: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+makes a SAM_ENTRY / UNISTR2* structure from a group list.
+********************************************************************/
+
+static void make_group_sam_entry_list(TALLOC_CTX *ctx, SAM_ENTRY **sam_pp,
+                                     UNISTR2 **uni_name_pp,
+                                     uint32 num_sam_entries,
+                                     struct samr_displayentry *entries)
+{
+       uint32 i;
+       SAM_ENTRY *sam;
+       UNISTR2 *uni_name;
+
+       *sam_pp = NULL;
+       *uni_name_pp = NULL;
+
+       if (num_sam_entries == 0)
+               return;
+
+       sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_sam_entries);
+       uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_sam_entries);
+
+       if (sam == NULL || uni_name == NULL) {
+               DEBUG(0, ("NULL pointers in SAMR_R_QUERY_DISPINFO\n"));
+               return;
+       }
+
+       for (i = 0; i < num_sam_entries; i++) {
+               /*
+                * JRA. I think this should include the null. TNG does not.
+                */
+               init_unistr2(&uni_name[i], entries[i].account_name,
+                            UNI_STR_TERMINATE);
+               init_sam_entry(&sam[i], &uni_name[i], entries[i].rid);
+       }
+
+       *sam_pp = sam;
+       *uni_name_pp = uni_name;
+}
+
+/*******************************************************************
+ samr_reply_enum_dom_groups
+ ********************************************************************/
+
+NTSTATUS _samr_enum_dom_groups(pipes_struct *p, SAMR_Q_ENUM_DOM_GROUPS *q_u, SAMR_R_ENUM_DOM_GROUPS *r_u)
+{
+       struct samr_info *info = NULL;
+       struct samr_displayentry *groups;
+       uint32 num_groups;
+
+       r_u->status = NT_STATUS_OK;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       r_u->status = access_check_samr_function(info->acc_granted,
+                                                SA_RIGHT_DOMAIN_ENUM_ACCOUNTS,
+                                                "_samr_enum_dom_groups");
+       if (!NT_STATUS_IS_OK(r_u->status))
+               return r_u->status;
+
+       DEBUG(5,("samr_reply_enum_dom_groups: %d\n", __LINE__));
+
+       if (info->builtin_domain) {
+               /* No groups in builtin. */
+               init_samr_r_enum_dom_groups(r_u, q_u->start_idx, 0);
+               DEBUG(5,("_samr_enum_dom_users: No groups in BUILTIN\n"));
+               return r_u->status;
+       }
+
+       /* the domain group array is being allocated in the function below */
+
+       become_root();
+
+       if (info->disp_info->groups == NULL) {
+               info->disp_info->groups = pdb_search_groups();
+
+               if (info->disp_info->groups == NULL) {
+                       unbecome_root();
+                       return NT_STATUS_ACCESS_DENIED;
+               }
+       }
+
+       num_groups = pdb_search_entries(info->disp_info->groups, q_u->start_idx,
+                                       MAX_SAM_ENTRIES, &groups);
+       unbecome_root();
+       
+       /* Ensure we cache this enumeration. */
+       set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT);
+
+       make_group_sam_entry_list(p->mem_ctx, &r_u->sam, &r_u->uni_grp_name,
+                                 num_groups, groups);
+
+       init_samr_r_enum_dom_groups(r_u, q_u->start_idx, num_groups);
+
+       DEBUG(5,("samr_enum_dom_groups: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ samr_reply_enum_dom_aliases
+ ********************************************************************/
+
+NTSTATUS _samr_enum_dom_aliases(pipes_struct *p, SAMR_Q_ENUM_DOM_ALIASES *q_u, SAMR_R_ENUM_DOM_ALIASES *r_u)
+{
+       struct samr_info *info;
+       struct samr_displayentry *aliases;
+       uint32 num_aliases = 0;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       r_u->status = access_check_samr_function(info->acc_granted,
+                                                SA_RIGHT_DOMAIN_ENUM_ACCOUNTS,
+                                                "_samr_enum_dom_aliases");
+       if (!NT_STATUS_IS_OK(r_u->status))
+               return r_u->status;
+
+       DEBUG(5,("samr_reply_enum_dom_aliases: sid %s\n",
+                sid_string_static(&info->sid)));
+
+       become_root();
+
+       if (info->disp_info->aliases == NULL) {
+               info->disp_info->aliases = pdb_search_aliases(&info->sid);
+               if (info->disp_info->aliases == NULL) {
+                       unbecome_root();
+                       return NT_STATUS_ACCESS_DENIED;
+               }
+       }
+
+       num_aliases = pdb_search_entries(info->disp_info->aliases, q_u->start_idx,
+                                        MAX_SAM_ENTRIES, &aliases);
+       unbecome_root();
+       
+       /* Ensure we cache this enumeration. */
+       set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT);
+
+       make_group_sam_entry_list(p->mem_ctx, &r_u->sam, &r_u->uni_grp_name,
+                                 num_aliases, aliases);
+
+       init_samr_r_enum_dom_aliases(r_u, q_u->start_idx + num_aliases,
+                                    num_aliases);
+
+       DEBUG(5,("samr_enum_dom_aliases: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ samr_reply_query_dispinfo
+ ********************************************************************/
+
+NTSTATUS _samr_query_dispinfo(pipes_struct *p, SAMR_Q_QUERY_DISPINFO *q_u, 
+                             SAMR_R_QUERY_DISPINFO *r_u)
+{
+       struct samr_info *info = NULL;
+       uint32 struct_size=0x20; /* W2K always reply that, client doesn't care */
+       
+       uint32 max_entries=q_u->max_entries;
+       uint32 enum_context=q_u->start_idx;
+       uint32 max_size=q_u->max_size;
+
+       SAM_DISPINFO_CTR *ctr;
+       uint32 temp_size=0, total_data_size=0;
+       NTSTATUS disp_ret = NT_STATUS_UNSUCCESSFUL;
+       uint32 num_account = 0;
+       enum remote_arch_types ra_type = get_remote_arch();
+       int max_sam_entries = (ra_type == RA_WIN95) ? MAX_SAM_ENTRIES_W95 : MAX_SAM_ENTRIES_W2K;
+       struct samr_displayentry *entries = NULL;
+
+       DEBUG(5, ("samr_reply_query_dispinfo: %d\n", __LINE__));
+       r_u->status = NT_STATUS_UNSUCCESSFUL;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       /*
+        * calculate how many entries we will return.
+        * based on 
+        * - the number of entries the client asked
+        * - our limit on that
+        * - the starting point (enumeration context)
+        * - the buffer size the client will accept
+        */
+
+       /*
+        * We are a lot more like W2K. Instead of reading the SAM
+        * each time to find the records we need to send back,
+        * we read it once and link that copy to the sam handle.
+        * For large user list (over the MAX_SAM_ENTRIES)
+        * it's a definitive win.
+        * second point to notice: between enumerations
+        * our sam is now the same as it's a snapshoot.
+        * third point: got rid of the static SAM_USER_21 struct
+        * no more intermediate.
+        * con: it uses much more memory, as a full copy is stored
+        * in memory.
+        *
+        * If you want to change it, think twice and think
+        * of the second point , that's really important.
+        *
+        * JFM, 12/20/2001
+        */
+
+       if ((q_u->switch_level < 1) || (q_u->switch_level > 5)) {
+               DEBUG(0,("_samr_query_dispinfo: Unknown info level (%u)\n",
+                        (unsigned int)q_u->switch_level ));
+               return NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       /* first limit the number of entries we will return */
+       if(max_entries > max_sam_entries) {
+               DEBUG(5, ("samr_reply_query_dispinfo: client requested %d "
+                         "entries, limiting to %d\n", max_entries,
+                         max_sam_entries));
+               max_entries = max_sam_entries;
+       }
+
+       /* calculate the size and limit on the number of entries we will
+        * return */
+
+       temp_size=max_entries*struct_size;
+       
+       if (temp_size>max_size) {
+               max_entries=MIN((max_size/struct_size),max_entries);;
+               DEBUG(5, ("samr_reply_query_dispinfo: buffer size limits to "
+                         "only %d entries\n", max_entries));
+       }
+
+       if (!(ctr = TALLOC_ZERO_P(p->mem_ctx,SAM_DISPINFO_CTR)))
+               return NT_STATUS_NO_MEMORY;
+
+       ZERO_STRUCTP(ctr);
+
+       become_root();
+
+       /* THe following done as ROOT. Don't return without unbecome_root(). */
+
+       switch (q_u->switch_level) {
+       case 0x1:
+       case 0x4:
+               if (info->disp_info->users == NULL) {
+                       info->disp_info->users = pdb_search_users(ACB_NORMAL);
+                       if (info->disp_info->users == NULL) {
+                               unbecome_root();
+                               return NT_STATUS_ACCESS_DENIED;
+                       }
+                       DEBUG(10,("samr_reply_query_dispinfo: starting user enumeration at index %u\n",
+                               (unsigned  int)enum_context ));
+               } else {
+                       DEBUG(10,("samr_reply_query_dispinfo: using cached user enumeration at index %u\n",
+                               (unsigned  int)enum_context ));
+               }
+
+               num_account = pdb_search_entries(info->disp_info->users,
+                                                enum_context, max_entries,
+                                                &entries);
+               break;
+       case 0x2:
+               if (info->disp_info->machines == NULL) {
+                       info->disp_info->machines =
+                               pdb_search_users(ACB_WSTRUST|ACB_SVRTRUST);
+                       if (info->disp_info->machines == NULL) {
+                               unbecome_root();
+                               return NT_STATUS_ACCESS_DENIED;
+                       }
+                       DEBUG(10,("samr_reply_query_dispinfo: starting machine enumeration at index %u\n",
+                               (unsigned  int)enum_context ));
+               } else {
+                       DEBUG(10,("samr_reply_query_dispinfo: using cached machine enumeration at index %u\n",
+                               (unsigned  int)enum_context ));
+               }
+
+               num_account = pdb_search_entries(info->disp_info->machines,
+                                                enum_context, max_entries,
+                                                &entries);
+               break;
+       case 0x3:
+       case 0x5:
+               if (info->disp_info->groups == NULL) {
+                       info->disp_info->groups = pdb_search_groups();
+                       if (info->disp_info->groups == NULL) {
+                               unbecome_root();
+                               return NT_STATUS_ACCESS_DENIED;
+                       }
+                       DEBUG(10,("samr_reply_query_dispinfo: starting group enumeration at index %u\n",
+                               (unsigned  int)enum_context ));
+               } else {
+                       DEBUG(10,("samr_reply_query_dispinfo: using cached group enumeration at index %u\n",
+                               (unsigned  int)enum_context ));
+               }
+
+               num_account = pdb_search_entries(info->disp_info->groups,
+                                                enum_context, max_entries,
+                                                &entries);
+               break;
+       default:
+               unbecome_root();
+               smb_panic("info class changed");
+               break;
+       }
+       unbecome_root();
+
+       /* Now create reply structure */
+       switch (q_u->switch_level) {
+       case 0x1:
+               disp_ret = init_sam_dispinfo_1(p->mem_ctx, &ctr->sam.info1,
+                                              num_account, enum_context,
+                                              entries);
+               break;
+       case 0x2:
+               disp_ret = init_sam_dispinfo_2(p->mem_ctx, &ctr->sam.info2,
+                                              num_account, enum_context,
+                                              entries);
+               break;
+       case 0x3:
+               disp_ret = init_sam_dispinfo_3(p->mem_ctx, &ctr->sam.info3,
+                                              num_account, enum_context,
+                                              entries);
+               break;
+       case 0x4:
+               disp_ret = init_sam_dispinfo_4(p->mem_ctx, &ctr->sam.info4,
+                                              num_account, enum_context,
+                                              entries);
+               break;
+       case 0x5:
+               disp_ret = init_sam_dispinfo_5(p->mem_ctx, &ctr->sam.info5,
+                                              num_account, enum_context,
+                                              entries);
+               break;
+       default:
+               smb_panic("info class changed");
+               break;
+       }
+
+       if (!NT_STATUS_IS_OK(disp_ret))
+               return disp_ret;
+
+       /* calculate the total size */
+       total_data_size=num_account*struct_size;
+
+       if (num_account) {
+               r_u->status = STATUS_MORE_ENTRIES;
+       } else {
+               r_u->status = NT_STATUS_OK;
+       }
+
+       /* Ensure we cache this enumeration. */
+       set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT);
+
+       DEBUG(5, ("_samr_query_dispinfo: %d\n", __LINE__));
+
+       init_samr_r_query_dispinfo(r_u, num_account, total_data_size,
+                                  temp_size, q_u->switch_level, ctr,
+                                  r_u->status);
+
+       return r_u->status;
+
+}
+
+/*******************************************************************
+ samr_reply_query_aliasinfo
+ ********************************************************************/
+
+NTSTATUS _samr_query_aliasinfo(pipes_struct *p, SAMR_Q_QUERY_ALIASINFO *q_u, SAMR_R_QUERY_ALIASINFO *r_u)
+{
+       DOM_SID   sid;
+       struct acct_info info;
+       uint32    acc_granted;
+       BOOL ret;
+
+       r_u->status = NT_STATUS_OK;
+
+       DEBUG(5,("_samr_query_aliasinfo: %d\n", __LINE__));
+
+       /* find the policy handle.  open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->pol, &sid, &acc_granted, NULL))
+               return NT_STATUS_INVALID_HANDLE;
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_LOOKUP_INFO, "_samr_query_aliasinfo"))) {
+               return r_u->status;
+       }
+
+       become_root();
+       ret = pdb_get_aliasinfo(&sid, &info);
+       unbecome_root();
+       
+       if ( !ret )
+               return NT_STATUS_NO_SUCH_ALIAS;
+
+       if ( !(r_u->ctr = TALLOC_ZERO_P( p->mem_ctx, ALIAS_INFO_CTR )) ) 
+               return NT_STATUS_NO_MEMORY;
+
+
+       switch (q_u->level ) {
+       case 1:
+               r_u->ctr->level = 1;
+               init_samr_alias_info1(&r_u->ctr->alias.info1, info.acct_name, 1, info.acct_desc);
+               break;
+       case 3:
+               r_u->ctr->level = 3;
+               init_samr_alias_info3(&r_u->ctr->alias.info3, info.acct_desc);
+               break;
+       default:
+               return NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       DEBUG(5,("_samr_query_aliasinfo: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+#if 0
+/*******************************************************************
+ samr_reply_lookup_ids
+ ********************************************************************/
+
+ uint32 _samr_lookup_ids(pipes_struct *p, SAMR_Q_LOOKUP_IDS *q_u, SAMR_R_LOOKUP_IDS *r_u)
+{
+    uint32 rid[MAX_SAM_ENTRIES];
+    int num_rids = q_u->num_sids1;
+
+    r_u->status = NT_STATUS_OK;
+
+    DEBUG(5,("_samr_lookup_ids: %d\n", __LINE__));
+
+    if (num_rids > MAX_SAM_ENTRIES) {
+        num_rids = MAX_SAM_ENTRIES;
+        DEBUG(5,("_samr_lookup_ids: truncating entries to %d\n", num_rids));
+    }
+
+#if 0
+    int i;
+    SMB_ASSERT_ARRAY(q_u->uni_user_name, num_rids);
+
+    for (i = 0; i < num_rids && status == 0; i++)
+    {
+        struct sam_passwd *sam_pass;
+        fstring user_name;
+
+
+        fstrcpy(user_name, unistrn2(q_u->uni_user_name[i].buffer,
+                                    q_u->uni_user_name[i].uni_str_len));
+
+        /* find the user account */
+        become_root();
+        sam_pass = get_smb21pwd_entry(user_name, 0);
+        unbecome_root();
+
+        if (sam_pass == NULL)
+        {
+            status = 0xC0000000 | NT_STATUS_NO_SUCH_USER;
+            rid[i] = 0;
+        }
+        else
+        {
+            rid[i] = sam_pass->user_rid;
+        }
+    }
+#endif
+
+    num_rids = 1;
+    rid[0] = BUILTIN_ALIAS_RID_USERS;
+
+    init_samr_r_lookup_ids(&r_u, num_rids, rid, NT_STATUS_OK);
+
+    DEBUG(5,("_samr_lookup_ids: %d\n", __LINE__));
+
+    return r_u->status;
+}
+#endif
+
+/*******************************************************************
+ _samr_lookup_names
+ ********************************************************************/
+
+NTSTATUS _samr_lookup_names(pipes_struct *p, SAMR_Q_LOOKUP_NAMES *q_u, SAMR_R_LOOKUP_NAMES *r_u)
+{
+       uint32 rid[MAX_SAM_ENTRIES];
+       uint32 local_rid;
+       enum SID_NAME_USE type[MAX_SAM_ENTRIES];
+       enum SID_NAME_USE local_type;
+       int i;
+       int num_rids = q_u->num_names2;
+       DOM_SID pol_sid;
+       fstring sid_str;
+       uint32  acc_granted;
+
+       r_u->status = NT_STATUS_OK;
+
+       DEBUG(5,("_samr_lookup_names: %d\n", __LINE__));
+
+       ZERO_ARRAY(rid);
+       ZERO_ARRAY(type);
+
+       if (!get_lsa_policy_samr_sid(p, &q_u->pol, &pol_sid, &acc_granted, NULL)) {
+               init_samr_r_lookup_names(p->mem_ctx, r_u, 0, NULL, NULL, NT_STATUS_OBJECT_TYPE_MISMATCH);
+               return r_u->status;
+       }
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, 0, "_samr_lookup_names"))) { /* Don't know the acc_bits yet */
+               return r_u->status;
+       }
+
+       if (num_rids > MAX_SAM_ENTRIES) {
+               num_rids = MAX_SAM_ENTRIES;
+               DEBUG(5,("_samr_lookup_names: truncating entries to %d\n", num_rids));
+       }
+
+       DEBUG(5,("_samr_lookup_names: looking name on SID %s\n", sid_to_string(sid_str, &pol_sid)));
+       
+       for (i = 0; i < num_rids; i++) {
+               fstring name;
+               DOM_SID sid;
+               int ret;
+
+               r_u->status = NT_STATUS_NONE_MAPPED;
+
+               rid [i] = 0xffffffff;
+               type[i] = SID_NAME_UNKNOWN;
+
+               ret = rpcstr_pull(name, q_u->uni_name[i].buffer, sizeof(name), q_u->uni_name[i].uni_str_len*2, 0);
+
+               /*
+                * we are only looking for a name
+                * the SID we get back can be outside
+                * the scope of the pol_sid
+                * 
+                * in clear: it prevents to reply to domain\group: yes
+                * when only builtin\group exists.
+                *
+                * a cleaner code is to add the sid of the domain we're looking in
+                * to the local_lookup_name function.
+                */
+                
+               if ((ret > 0) && local_lookup_name(name, &sid, &local_type)) {
+                       sid_split_rid(&sid, &local_rid);
+                               
+                       if (sid_equal(&sid, &pol_sid)) {
+                               rid[i]=local_rid;
+
+                               /* Windows does not return WKN_GRP here, even
+                                * on lookups in builtin */
+                               type[i] = (local_type == SID_NAME_WKN_GRP) ?
+                                       SID_NAME_ALIAS : local_type;
+
+                               r_u->status = NT_STATUS_OK;
+                       }
+               }
+       }
+
+       init_samr_r_lookup_names(p->mem_ctx, r_u, num_rids, rid, (uint32 *)type, r_u->status);
+
+       DEBUG(5,("_samr_lookup_names: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ _samr_chgpasswd_user
+ ********************************************************************/
+
+NTSTATUS _samr_chgpasswd_user(pipes_struct *p, SAMR_Q_CHGPASSWD_USER *q_u, SAMR_R_CHGPASSWD_USER *r_u)
+{
+       fstring user_name;
+       fstring wks;
+
+       DEBUG(5,("_samr_chgpasswd_user: %d\n", __LINE__));
+
+       r_u->status = NT_STATUS_OK;
+
+       rpcstr_pull(user_name, q_u->uni_user_name.buffer, sizeof(user_name), q_u->uni_user_name.uni_str_len*2, 0);
+       rpcstr_pull(wks, q_u->uni_dest_host.buffer, sizeof(wks), q_u->uni_dest_host.uni_str_len*2,0);
+
+       DEBUG(5,("samr_chgpasswd_user: user: %s wks: %s\n", user_name, wks));
+
+       /*
+        * Pass the user through the NT -> unix user mapping
+        * function.
+        */
+       (void)map_username(user_name);
+       /*
+        * UNIX username case mangling not required, pass_oem_change 
+        * is case insensitive.
+        */
+
+       r_u->status = pass_oem_change(user_name, q_u->lm_newpass.pass, q_u->lm_oldhash.hash,
+                               q_u->nt_newpass.pass, q_u->nt_oldhash.hash);
+
+       init_samr_r_chgpasswd_user(r_u, r_u->status);
+
+       DEBUG(5,("_samr_chgpasswd_user: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+makes a SAMR_R_LOOKUP_RIDS structure.
+********************************************************************/
+
+static BOOL make_samr_lookup_rids(TALLOC_CTX *ctx, uint32 num_names,
+                                 const char **names, UNIHDR **pp_hdr_name,
+                                 UNISTR2 **pp_uni_name)
+{
+       uint32 i;
+       UNIHDR *hdr_name=NULL;
+       UNISTR2 *uni_name=NULL;
+
+       *pp_uni_name = NULL;
+       *pp_hdr_name = NULL;
+
+       if (num_names != 0) {
+               hdr_name = TALLOC_ZERO_ARRAY(ctx, UNIHDR, num_names);
+               if (hdr_name == NULL)
+                       return False;
+
+               uni_name = TALLOC_ZERO_ARRAY(ctx,UNISTR2, num_names);
+               if (uni_name == NULL)
+                       return False;
+       }
+
+       for (i = 0; i < num_names; i++) {
+               DEBUG(10, ("names[%d]:%s\n", i, names[i] && *names[i] ? names[i] : ""));
+               init_unistr2(&uni_name[i], names[i], UNI_FLAGS_NONE);
+               init_uni_hdr(&hdr_name[i], &uni_name[i]);
+       }
+
+       *pp_uni_name = uni_name;
+       *pp_hdr_name = hdr_name;
+
+       return True;
+}
+
+/*******************************************************************
+ _samr_lookup_rids
+ ********************************************************************/
+
+NTSTATUS _samr_lookup_rids(pipes_struct *p, SAMR_Q_LOOKUP_RIDS *q_u, SAMR_R_LOOKUP_RIDS *r_u)
+{
+       const char **names;
+       uint32 *attrs = NULL;
+       UNIHDR *hdr_name = NULL;
+       UNISTR2 *uni_name = NULL;
+       DOM_SID pol_sid;
+       int num_rids = q_u->num_rids1;
+       uint32 acc_granted;
+       
+       r_u->status = NT_STATUS_OK;
+
+       DEBUG(5,("_samr_lookup_rids: %d\n", __LINE__));
+
+       /* find the policy handle.  open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->pol, &pol_sid, &acc_granted, NULL))
+               return NT_STATUS_INVALID_HANDLE;
+
+       if (num_rids > 1000) {
+               DEBUG(0, ("Got asked for %d rids (more than 1000) -- according "
+                         "to samba4 idl this is not possible\n", num_rids));
+               return NT_STATUS_UNSUCCESSFUL;
+       }
+
+       names = TALLOC_ZERO_ARRAY(p->mem_ctx, const char *, num_rids);
+       attrs = TALLOC_ZERO_ARRAY(p->mem_ctx, uint32, num_rids);
+
+       if ((num_rids != 0) && ((names == NULL) || (attrs == NULL)))
+               return NT_STATUS_NO_MEMORY;
+
+       become_root();  /* lookup_sid can require root privs */
+       r_u->status = pdb_lookup_rids(&pol_sid, num_rids, q_u->rid,
+                                     names, attrs);
+       unbecome_root();
+
+       if(!make_samr_lookup_rids(p->mem_ctx, num_rids, names,
+                                 &hdr_name, &uni_name))
+               return NT_STATUS_NO_MEMORY;
+
+       init_samr_r_lookup_rids(r_u, num_rids, hdr_name, uni_name, attrs);
+
+       DEBUG(5,("_samr_lookup_rids: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ _samr_open_user. Safe - gives out no passwd info.
+ ********************************************************************/
+
+NTSTATUS _samr_open_user(pipes_struct *p, SAMR_Q_OPEN_USER *q_u, SAMR_R_OPEN_USER *r_u)
+{
+       SAM_ACCOUNT *sampass=NULL;
+       DOM_SID sid;
+       POLICY_HND domain_pol = q_u->domain_pol;
+       POLICY_HND *user_pol = &r_u->user_pol;
+       struct samr_info *info = NULL;
+       SEC_DESC *psd = NULL;
+       uint32    acc_granted;
+       uint32    des_access = q_u->access_mask;
+       size_t    sd_size;
+       BOOL ret;
+       NTSTATUS nt_status;
+       SE_PRIV se_rights;
+
+       r_u->status = NT_STATUS_OK;
+
+       /* find the domain policy handle and get domain SID / access bits in the domain policy. */
+       
+       if ( !get_lsa_policy_samr_sid(p, &domain_pol, &sid, &acc_granted, NULL) )
+               return NT_STATUS_INVALID_HANDLE;
+       
+       nt_status = access_check_samr_function( acc_granted, 
+               SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_user" );
+               
+       if ( !NT_STATUS_IS_OK(nt_status) )
+               return nt_status;
+
+       nt_status = pdb_init_sam_talloc(p->mem_ctx, &sampass);
+       
+       if (!NT_STATUS_IS_OK(nt_status))
+               return nt_status;
+
+       /* append the user's RID to it */
+       
+       if (!sid_append_rid(&sid, q_u->user_rid))
+               return NT_STATUS_NO_SUCH_USER;
+       
+       /* check if access can be granted as requested by client. */
+       
+       make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping, &sid, SAMR_USR_RIGHTS_WRITE_PW);
+       se_map_generic(&des_access, &usr_generic_mapping);
+       
+       se_priv_copy( &se_rights, &se_machine_account );
+       se_priv_add( &se_rights, &se_add_users );
+       
+       nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
+               &se_rights, GENERIC_RIGHTS_USER_WRITE, des_access, 
+               &acc_granted, "_samr_open_user");
+               
+       if ( !NT_STATUS_IS_OK(nt_status) )
+               return nt_status;
+
+       become_root();
+       ret=pdb_getsampwsid(sampass, &sid);
+       unbecome_root();
+
+       /* check that the SID exists in our domain. */
+       if (ret == False) {
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       pdb_free_sam(&sampass);
+
+       /* associate the user's SID and access bits with the new handle. */
+       if ((info = get_samr_info_by_sid(&sid)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+       info->acc_granted = acc_granted;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, user_pol, free_samr_info, (void *)info))
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+       return r_u->status;
+}
+
+/*************************************************************************
+ get_user_info_7. Safe. Only gives out account_name.
+ *************************************************************************/
+
+static NTSTATUS get_user_info_7(TALLOC_CTX *mem_ctx, SAM_USER_INFO_7 *id7, DOM_SID *user_sid)
+{
+       SAM_ACCOUNT *smbpass=NULL;
+       BOOL ret;
+       NTSTATUS nt_status;
+
+       nt_status = pdb_init_sam_talloc(mem_ctx, &smbpass);
+       
+       if (!NT_STATUS_IS_OK(nt_status)) {
+               return nt_status;
+       }
+
+       become_root();
+       ret = pdb_getsampwsid(smbpass, user_sid);
+       unbecome_root();
+
+       if (ret==False) {
+               DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) ));
+
+       ZERO_STRUCTP(id7);
+       init_sam_user_info7(id7, pdb_get_username(smbpass) );
+
+       pdb_free_sam(&smbpass);
+
+       return NT_STATUS_OK;
+}
+
+/*************************************************************************
+ get_user_info_9. Only gives out primary group SID.
+ *************************************************************************/
+static NTSTATUS get_user_info_9(TALLOC_CTX *mem_ctx, SAM_USER_INFO_9 * id9, DOM_SID *user_sid)
+{
+       SAM_ACCOUNT *smbpass=NULL;
+       BOOL ret;
+       NTSTATUS nt_status;
+
+       nt_status = pdb_init_sam_talloc(mem_ctx, &smbpass);
+
+       if (!NT_STATUS_IS_OK(nt_status)) {
+               return nt_status;
+       }
+
+       become_root();
+       ret = pdb_getsampwsid(smbpass, user_sid);
+       unbecome_root();
+
+       if (ret==False) {
+               DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) ));
+
+       ZERO_STRUCTP(id9);
+       init_sam_user_info9(id9, pdb_get_group_rid(smbpass) );
+
+       pdb_free_sam(&smbpass);
+
+       return NT_STATUS_OK;
+}
+
+/*************************************************************************
+ get_user_info_16. Safe. Only gives out acb bits.
+ *************************************************************************/
+
+static NTSTATUS get_user_info_16(TALLOC_CTX *mem_ctx, SAM_USER_INFO_16 *id16, DOM_SID *user_sid)
+{
+       SAM_ACCOUNT *smbpass=NULL;
+       BOOL ret;
+       NTSTATUS nt_status;
+
+       nt_status = pdb_init_sam_talloc(mem_ctx, &smbpass);
+       
+       if (!NT_STATUS_IS_OK(nt_status)) {
+               return nt_status;
+       }
+
+       become_root();
+       ret = pdb_getsampwsid(smbpass, user_sid);
+       unbecome_root();
+
+       if (ret==False) {
+               DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) ));
+
+       ZERO_STRUCTP(id16);
+       init_sam_user_info16(id16, pdb_get_acct_ctrl(smbpass) );
+
+       pdb_free_sam(&smbpass);
+
+       return NT_STATUS_OK;
+}
+
+/*************************************************************************
+ get_user_info_18. OK - this is the killer as it gives out password info.
+ Ensure that this is only allowed on an encrypted connection with a root
+ user. JRA. 
+ *************************************************************************/
+
+static NTSTATUS get_user_info_18(pipes_struct *p, TALLOC_CTX *mem_ctx, SAM_USER_INFO_18 * id18, DOM_SID *user_sid)
+{
+       SAM_ACCOUNT *smbpass=NULL;
+       BOOL ret;
+       NTSTATUS nt_status;
+
+       if (p->auth.auth_type != PIPE_AUTH_TYPE_NTLMSSP || p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP) {
+               return NT_STATUS_ACCESS_DENIED;
+       }
+
+       if (p->auth.auth_level != PIPE_AUTH_LEVEL_PRIVACY) {
+               return NT_STATUS_ACCESS_DENIED;
+       }
+
+       /*
+        * Do *NOT* do become_root()/unbecome_root() here ! JRA.
+        */
+
+       nt_status = pdb_init_sam_talloc(mem_ctx, &smbpass);
+       
+       if (!NT_STATUS_IS_OK(nt_status)) {
+               return nt_status;
+       }
+
+       ret = pdb_getsampwsid(smbpass, user_sid);
+
+       if (ret == False) {
+               DEBUG(4, ("User %s not found\n", sid_string_static(user_sid)));
+               pdb_free_sam(&smbpass);
+               return (geteuid() == (uid_t)0) ? NT_STATUS_NO_SUCH_USER : NT_STATUS_ACCESS_DENIED;
+       }
+
+       DEBUG(3,("User:[%s] 0x%x\n", pdb_get_username(smbpass), pdb_get_acct_ctrl(smbpass) ));
+
+       if ( pdb_get_acct_ctrl(smbpass) & ACB_DISABLED) {
+               pdb_free_sam(&smbpass);
+               return NT_STATUS_ACCOUNT_DISABLED;
+       }
+
+       ZERO_STRUCTP(id18);
+       init_sam_user_info18(id18, pdb_get_lanman_passwd(smbpass), pdb_get_nt_passwd(smbpass));
+       
+       pdb_free_sam(&smbpass);
+
+       return NT_STATUS_OK;
+}
+
+/*************************************************************************
+ get_user_info_20
+ *************************************************************************/
+
+static NTSTATUS get_user_info_20(TALLOC_CTX *mem_ctx, SAM_USER_INFO_20 *id20, DOM_SID *user_sid)
+{
+       SAM_ACCOUNT *sampass=NULL;
+       BOOL ret;
+
+       pdb_init_sam_talloc(mem_ctx, &sampass);
+
+       become_root();
+       ret = pdb_getsampwsid(sampass, user_sid);
+       unbecome_root();
+
+       if (ret == False) {
+               DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       samr_clear_sam_passwd(sampass);
+
+       DEBUG(3,("User:[%s]\n",  pdb_get_username(sampass) ));
+
+       ZERO_STRUCTP(id20);
+       init_sam_user_info20A(id20, sampass);
+       
+       pdb_free_sam(&sampass);
+
+       return NT_STATUS_OK;
+}
+
+/*************************************************************************
+ get_user_info_21
+ *************************************************************************/
+
+static NTSTATUS get_user_info_21(TALLOC_CTX *mem_ctx, SAM_USER_INFO_21 *id21, 
+                                DOM_SID *user_sid, DOM_SID *domain_sid)
+{
+       SAM_ACCOUNT *sampass=NULL;
+       BOOL ret;
+       NTSTATUS nt_status;
+
+       nt_status = pdb_init_sam_talloc(mem_ctx, &sampass);
+       if (!NT_STATUS_IS_OK(nt_status)) {
+               return nt_status;
+       }
+
+       become_root();
+       ret = pdb_getsampwsid(sampass, user_sid);
+       unbecome_root();
+
+       if (ret == False) {
+               DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       samr_clear_sam_passwd(sampass);
+
+       DEBUG(3,("User:[%s]\n",  pdb_get_username(sampass) ));
+
+       ZERO_STRUCTP(id21);
+       nt_status = init_sam_user_info21A(id21, sampass, domain_sid);
+       
+       pdb_free_sam(&sampass);
+
+       return NT_STATUS_OK;
+}
+
+/*******************************************************************
+ _samr_query_userinfo
+ ********************************************************************/
+
+NTSTATUS _samr_query_userinfo(pipes_struct *p, SAMR_Q_QUERY_USERINFO *q_u, SAMR_R_QUERY_USERINFO *r_u)
+{
+       SAM_USERINFO_CTR *ctr;
+       struct samr_info *info = NULL;
+       DOM_SID domain_sid;
+       uint32 rid;
+       
+       r_u->status=NT_STATUS_OK;
+
+       /* search for the handle */
+       if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       domain_sid = info->sid;
+
+       sid_split_rid(&domain_sid, &rid);
+
+       if (!sid_check_is_in_our_domain(&info->sid))
+               return NT_STATUS_OBJECT_TYPE_MISMATCH;
+
+       DEBUG(5,("_samr_query_userinfo: sid:%s\n", sid_string_static(&info->sid)));
+
+       ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_USERINFO_CTR);
+       if (!ctr)
+               return NT_STATUS_NO_MEMORY;
+
+       ZERO_STRUCTP(ctr);
+
+       /* ok!  user info levels (lots: see MSDEV help), off we go... */
+       ctr->switch_value = q_u->switch_value;
+
+       DEBUG(5,("_samr_query_userinfo: user info level: %d\n", q_u->switch_value));
+
+       switch (q_u->switch_value) {
+       case 7:
+               ctr->info.id7 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_7);
+               if (ctr->info.id7 == NULL)
+                       return NT_STATUS_NO_MEMORY;
+
+               if (!NT_STATUS_IS_OK(r_u->status = get_user_info_7(p->mem_ctx, ctr->info.id7, &info->sid)))
+                       return r_u->status;
+               break;
+       case 9:
+               ctr->info.id9 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_9);
+               if (ctr->info.id9 == NULL)
+                       return NT_STATUS_NO_MEMORY;
+
+               if (!NT_STATUS_IS_OK(r_u->status = get_user_info_9(p->mem_ctx, ctr->info.id9, &info->sid)))
+                       return r_u->status;
+               break;
+       case 16:
+               ctr->info.id16 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_16);
+               if (ctr->info.id16 == NULL)
+                       return NT_STATUS_NO_MEMORY;
+
+               if (!NT_STATUS_IS_OK(r_u->status = get_user_info_16(p->mem_ctx, ctr->info.id16, &info->sid)))
+                       return r_u->status;
+               break;
+
+#if 0
+/* whoops - got this wrong.  i think.  or don't understand what's happening. */
+        case 17:
+        {
+            NTTIME expire;
+            info = (void *)&id11;
+
+            expire.low = 0xffffffff;
+            expire.high = 0x7fffffff;
+
+            ctr->info.id = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_17));
+           ZERO_STRUCTP(ctr->info.id17);
+            init_sam_user_info17(ctr->info.id17, &expire,
+                         "BROOKFIELDS$",    /* name */
+                         0x03ef,    /* user rid */
+                         0x201, /* group rid */
+                         0x0080);   /* acb info */
+
+            break;
+        }
+#endif
+
+       case 18:
+               ctr->info.id18 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_18);
+               if (ctr->info.id18 == NULL)
+                       return NT_STATUS_NO_MEMORY;
+
+               if (!NT_STATUS_IS_OK(r_u->status = get_user_info_18(p, p->mem_ctx, ctr->info.id18, &info->sid)))
+                       return r_u->status;
+               break;
+               
+       case 20:
+               ctr->info.id20 = TALLOC_ZERO_P(p->mem_ctx,SAM_USER_INFO_20);
+               if (ctr->info.id20 == NULL)
+                       return NT_STATUS_NO_MEMORY;
+               if (!NT_STATUS_IS_OK(r_u->status = get_user_info_20(p->mem_ctx, ctr->info.id20, &info->sid)))
+                       return r_u->status;
+               break;
+
+       case 21:
+               ctr->info.id21 = TALLOC_ZERO_P(p->mem_ctx,SAM_USER_INFO_21);
+               if (ctr->info.id21 == NULL)
+                       return NT_STATUS_NO_MEMORY;
+               if (!NT_STATUS_IS_OK(r_u->status = get_user_info_21(p->mem_ctx, ctr->info.id21, 
+                                                                   &info->sid, &domain_sid)))
+                       return r_u->status;
+               break;
+
+       default:
+               return NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       init_samr_r_query_userinfo(r_u, ctr, r_u->status);
+
+       DEBUG(5,("_samr_query_userinfo: %d\n", __LINE__));
+       
+       return r_u->status;
+}
+
+/*******************************************************************
+ samr_reply_query_usergroups
+ ********************************************************************/
+
+NTSTATUS _samr_query_usergroups(pipes_struct *p, SAMR_Q_QUERY_USERGROUPS *q_u, SAMR_R_QUERY_USERGROUPS *r_u)
+{
+       SAM_ACCOUNT *sam_pass=NULL;
+       struct passwd *passwd;
+       DOM_SID  sid;
+       DOM_SID *sids;
+       DOM_GID *gids = NULL;
+       size_t num_groups = 0;
+       gid_t *unix_gids;
+       size_t i, num_gids;
+       uint32 acc_granted;
+       BOOL ret;
+       NTSTATUS result;
+
+       /*
+        * from the SID in the request:
+        * we should send back the list of DOMAIN GROUPS
+        * the user is a member of
+        *
+        * and only the DOMAIN GROUPS
+        * no ALIASES !!! neither aliases of the domain
+        * nor aliases of the builtin SID
+        *
+        * JFM, 12/2/2001
+        */
+
+       r_u->status = NT_STATUS_OK;
+
+       DEBUG(5,("_samr_query_usergroups: %d\n", __LINE__));
+
+       /* find the policy handle.  open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->pol, &sid, &acc_granted, NULL))
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_USER_GET_GROUPS, "_samr_query_usergroups"))) {
+               return r_u->status;
+       }
+
+       if (!sid_check_is_in_our_domain(&sid))
+               return NT_STATUS_OBJECT_TYPE_MISMATCH;
+
+       pdb_init_sam(&sam_pass);
+       
+       become_root();
+       ret = pdb_getsampwsid(sam_pass, &sid);
+       unbecome_root();
+
+       if (ret == False) {
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       passwd = getpwnam_alloc(pdb_get_username(sam_pass));
+       if (passwd == NULL) {
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       sids = NULL;
+
+       become_root();
+       result = pdb_enum_group_memberships(pdb_get_username(sam_pass),
+                                           passwd->pw_gid,
+                                           &sids, &unix_gids, &num_groups);
+       unbecome_root();
+
+       pdb_free_sam(&sam_pass);
+       passwd_free(&passwd);
+
+       if (!NT_STATUS_IS_OK(result))
+               return result;
+
+       SAFE_FREE(unix_gids);
+
+       gids = NULL;
+       num_gids = 0;
+
+       for (i=0; i<num_groups; i++) {
+               uint32 rid;
+
+               if (!sid_peek_check_rid(get_global_sam_sid(),
+                                       &(sids[i]), &rid))
+                       continue;
+
+               gids = TALLOC_REALLOC_ARRAY(p->mem_ctx, gids, DOM_GID, num_gids+1);
+               gids[num_gids].attr= (SE_GROUP_MANDATORY|SE_GROUP_ENABLED_BY_DEFAULT|SE_GROUP_ENABLED);
+               gids[num_gids].g_rid = rid;
+               num_gids += 1;
+       }
+       SAFE_FREE(sids);
+       
+       /* construct the response.  lkclXXXX: gids are not copied! */
+       init_samr_r_query_usergroups(r_u, num_groups, gids, r_u->status);
+       
+       DEBUG(5,("_samr_query_usergroups: %d\n", __LINE__));
+       
+       return r_u->status;
+}
+
+/*******************************************************************
+ _samr_query_dom_info
+ ********************************************************************/
+
+NTSTATUS _samr_query_dom_info(pipes_struct *p, SAMR_Q_QUERY_DOMAIN_INFO *q_u, SAMR_R_QUERY_DOMAIN_INFO *r_u)
+{
+       struct samr_info *info = NULL;
+       SAM_UNK_CTR *ctr;
+       uint32 min_pass_len,pass_hist,flag;
+       time_t u_expire, u_min_age;
+       NTTIME nt_expire, nt_min_age;
+
+       time_t u_lock_duration, u_reset_time;
+       NTTIME nt_lock_duration, nt_reset_time;
+       uint32 lockout;
+       time_t u_logout;
+       NTTIME nt_logout;
+
+       uint32 account_policy_temp;
+
+       time_t seq_num;
+       uint32 server_role;
+
+       uint32 num_users=0, num_groups=0, num_aliases=0;
+
+       if ((ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_UNK_CTR)) == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       ZERO_STRUCTP(ctr);
+
+       r_u->status = NT_STATUS_OK;
+       
+       DEBUG(5,("_samr_query_dom_info: %d\n", __LINE__));
+       
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info)) {
+               return NT_STATUS_INVALID_HANDLE;
+       }
+       
+       switch (q_u->switch_value) {
+               case 0x01:
+                       
+                       become_root();
+
+                       /* AS ROOT !!! */
+
+                       pdb_get_account_policy(AP_MIN_PASSWORD_LEN, &account_policy_temp);
+                       min_pass_len = account_policy_temp;
+
+                       pdb_get_account_policy(AP_PASSWORD_HISTORY, &account_policy_temp);
+                       pass_hist = account_policy_temp;
+
+                       pdb_get_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, &account_policy_temp);
+                       flag = account_policy_temp;
+
+                       pdb_get_account_policy(AP_MAX_PASSWORD_AGE, &account_policy_temp);
+                       u_expire = account_policy_temp;
+
+                       pdb_get_account_policy(AP_MIN_PASSWORD_AGE, &account_policy_temp);
+                       u_min_age = account_policy_temp;
+
+                       /* !AS ROOT */
+                       
+                       unbecome_root();
+
+                       unix_to_nt_time_abs(&nt_expire, u_expire);
+                       unix_to_nt_time_abs(&nt_min_age, u_min_age);
+
+                       init_unk_info1(&ctr->info.inf1, (uint16)min_pass_len, (uint16)pass_hist, 
+                                      flag, nt_expire, nt_min_age);
+                       break;
+               case 0x02:
+
+                       become_root();
+
+                       /* AS ROOT !!! */
+
+                       num_users = count_sam_users(info->disp_info, ACB_NORMAL);
+                       num_groups = count_sam_groups(info->disp_info);
+                       num_aliases = count_sam_aliases(info->disp_info);
+
+                       pdb_get_account_policy(AP_TIME_TO_LOGOUT, &account_policy_temp);
+                       u_logout = account_policy_temp;
+
+                       unix_to_nt_time_abs(&nt_logout, u_logout);
+
+                       if (!pdb_get_seq_num(&seq_num))
+                               seq_num = time(NULL);
+
+                       /* !AS ROOT */
+                       
+                       unbecome_root();
+
+                       server_role = ROLE_DOMAIN_PDC;
+                       if (lp_server_role() == ROLE_DOMAIN_BDC)
+                               server_role = ROLE_DOMAIN_BDC;
+
+                       init_unk_info2(&ctr->info.inf2, lp_serverstring(), lp_workgroup(), global_myname(), seq_num, 
+                                      num_users, num_groups, num_aliases, nt_logout, server_role);
+                       break;
+               case 0x03:
+
+                       become_root();
+
+                       /* AS ROOT !!! */
+
+                       pdb_get_account_policy(AP_TIME_TO_LOGOUT, (unsigned int *)&u_logout);
+
+                       /* !AS ROOT */
+                       
+                       unbecome_root();
+
+                       unix_to_nt_time_abs(&nt_logout, u_logout);
+                       
+                       init_unk_info3(&ctr->info.inf3, nt_logout);
+                       break;
+               case 0x05:
+                       init_unk_info5(&ctr->info.inf5, global_myname());
+                       break;
+               case 0x06:
+                       init_unk_info6(&ctr->info.inf6);
+                       break;
+               case 0x07:
+                       server_role = ROLE_DOMAIN_PDC;
+                       if (lp_server_role() == ROLE_DOMAIN_BDC)
+                               server_role = ROLE_DOMAIN_BDC;
+
+                       init_unk_info7(&ctr->info.inf7, server_role);
+                       break;
+               case 0x08:
+
+                       become_root();
+
+                       /* AS ROOT !!! */
+
+                       if (!pdb_get_seq_num(&seq_num)) {
+                               seq_num = time(NULL);
+                       }
+
+                       /* !AS ROOT */
+                       
+                       unbecome_root();
+
+                       init_unk_info8(&ctr->info.inf8, (uint32) seq_num);
+                       break;
+               case 0x0c:
+
+                       become_root();
+
+                       /* AS ROOT !!! */
+
+                       pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &account_policy_temp);
+                       u_lock_duration = account_policy_temp;
+                       if (u_lock_duration != -1) {
+                               u_lock_duration *= 60;
+                       }
+
+                       pdb_get_account_policy(AP_RESET_COUNT_TIME, &account_policy_temp);
+                       u_reset_time = account_policy_temp * 60;
+
+                       pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_temp);
+                       lockout = account_policy_temp;
+
+                       /* !AS ROOT */
+                       
+                       unbecome_root();
+
+                       unix_to_nt_time_abs(&nt_lock_duration, u_lock_duration);
+                       unix_to_nt_time_abs(&nt_reset_time, u_reset_time);
+       
+                       init_unk_info12(&ctr->info.inf12, nt_lock_duration, nt_reset_time, (uint16)lockout);
+                       break;
+               default:
+                       return NT_STATUS_INVALID_INFO_CLASS;
+               }
+       
+
+       init_samr_r_query_dom_info(r_u, q_u->switch_value, ctr, NT_STATUS_OK);
+       
+       DEBUG(5,("_samr_query_dom_info: %d\n", __LINE__));
+       
+       return r_u->status;
+}
+
+/*******************************************************************
+ _samr_create_user
+ Create an account, can be either a normal user or a machine.
+ This funcion will need to be updated for bdc/domain trusts.
+ ********************************************************************/
+
+NTSTATUS _samr_create_user(pipes_struct *p, SAMR_Q_CREATE_USER *q_u, SAMR_R_CREATE_USER *r_u)
+{
+       SAM_ACCOUNT *sam_pass=NULL;
+       fstring account;
+       DOM_SID sid;
+       pstring add_script;
+       POLICY_HND dom_pol = q_u->domain_pol;
+       UNISTR2 user_account = q_u->uni_name;
+       uint16 acb_info = q_u->acb_info;
+       POLICY_HND *user_pol = &r_u->user_pol;
+       struct samr_info *info = NULL;
+       BOOL ret;
+       NTSTATUS nt_status;
+       struct passwd *pw;
+       uint32 acc_granted;
+       SEC_DESC *psd;
+       size_t    sd_size;
+       uint32 new_rid = 0;
+       /* check this, when giving away 'add computer to domain' privs */
+       uint32    des_access = GENERIC_RIGHTS_USER_ALL_ACCESS;
+       BOOL can_add_account = False;
+       SE_PRIV se_rights;
+       DISP_INFO *disp_info = NULL;
+
+       /* Get the domain SID stored in the domain policy */
+       if (!get_lsa_policy_samr_sid(p, &dom_pol, &sid, &acc_granted, &disp_info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       if (!NT_STATUS_IS_OK(nt_status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_CREATE_USER, "_samr_create_user"))) {
+               return nt_status;
+       }
+
+       if (!(acb_info == ACB_NORMAL || acb_info == ACB_DOMTRUST || acb_info == ACB_WSTRUST || acb_info == ACB_SVRTRUST)) { 
+               /* Match Win2k, and return NT_STATUS_INVALID_PARAMETER if 
+                  this parameter is not an account type */
+               return NT_STATUS_INVALID_PARAMETER;
+       }
+
+       rpcstr_pull(account, user_account.buffer, sizeof(account), user_account.uni_str_len*2, 0);
+       strlower_m(account);
+
+       pdb_init_sam(&sam_pass);
+
+       become_root();
+       ret = pdb_getsampwnam(sam_pass, account);
+       unbecome_root();
+       if (ret == True) {
+               /* this account exists: say so */
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_USER_EXISTS;
+       }
+
+       pdb_free_sam(&sam_pass);
+
+       /*********************************************************************
+        * HEADS UP!  If we have to create a new user account, we have to get 
+        * a new RID from somewhere.  This used to be done by the passdb 
+        * backend. It has been moved into idmap now.  Since idmap is now 
+        * wrapped up behind winbind, this means you have to run winbindd if you
+        * want new accounts to get a new RID when "enable rid algorithm = no".
+        * Tough.  We now have a uniform way of allocating RIDs regardless
+        * of what ever passdb backend people may use.
+        *                                             --jerry (2003-07-10)
+        *********************************************************************/
+
+       pw = Get_Pwnam(account);
+
+       /* determine which user right we need to check based on the acb_info */
+       
+       if ( acb_info & ACB_WSTRUST )
+       {
+               pstrcpy(add_script, lp_addmachine_script());
+               se_priv_copy( &se_rights, &se_machine_account );
+               can_add_account = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+       } 
+       /* usrmgr.exe (and net rpc trustdom grant) creates a normal user 
+          account for domain trusts and changes the ACB flags later */
+       else if ( acb_info & ACB_NORMAL && (account[strlen(account)-1] != '$') )
+       {
+               pstrcpy(add_script, lp_adduser_script());
+               se_priv_copy( &se_rights, &se_add_users );
+               can_add_account = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+       } 
+       else    /* implicit assumption of a BDC or domain trust account here (we already check the flags earlier) */
+       {
+               pstrcpy(add_script, lp_addmachine_script());
+               if ( lp_enable_privileges() ) {
+                       /* only Domain Admins can add a BDC or domain trust */
+                       se_priv_copy( &se_rights, &se_priv_none );
+                       can_add_account = nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS );
+       }
+       }
+               
+       DEBUG(5, ("_samr_create_user: %s can add this account : %s\n",
+               p->pipe_user_name, can_add_account ? "True":"False" ));
+               
+       /********** BEGIN Admin BLOCK **********/
+
+       if ( can_add_account )
+               become_root();
+
+       if ( !pw ) {
+               if (*add_script) {
+                       int add_ret;
+
+                       all_string_sub(add_script, "%u", account, sizeof(add_script));
+                       add_ret = smbrun(add_script,NULL);
+                       DEBUG(add_ret ? 0 : 3,("_samr_create_user: Running the command `%s' gave %d\n", add_script, add_ret));
+               }
+       }
+
+       /* implicit call to getpwnam() next.  we have a valid SID coming out of this call */
+
+       flush_pwnam_cache();
+       nt_status = pdb_init_sam_new(&sam_pass, account, new_rid);
+
+       /* this code is order such that we have no unnecessary retuns 
+          out of the admin block of code */    
+          
+       if ( NT_STATUS_IS_OK(nt_status) ) {
+               pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
+       
+               if ( !(ret = pdb_add_sam_account(sam_pass)) ) {
+                       pdb_free_sam(&sam_pass);
+                       DEBUG(0, ("could not add user/computer %s to passdb.  Check permissions?\n", 
+                               account));
+                       nt_status = NT_STATUS_ACCESS_DENIED;
+               }
+       }
+               
+       if ( can_add_account )
+               unbecome_root();
+
+       /********** END Admin BLOCK **********/
+       
+       /* now check for failure */
+       
+       if ( !NT_STATUS_IS_OK(nt_status) )
+               return nt_status;
+                       
+       /* Get the user's SID */
+       
+       sid_copy(&sid, pdb_get_user_sid(sam_pass));
+       
+       make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping, &sid, SAMR_USR_RIGHTS_WRITE_PW);
+       se_map_generic(&des_access, &usr_generic_mapping);
+       
+       nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
+               &se_rights, GENERIC_RIGHTS_USER_WRITE, des_access, 
+               &acc_granted, "_samr_create_user");
+               
+       if ( !NT_STATUS_IS_OK(nt_status) ) {
+               return nt_status;
+       }
+
+       /* associate the user's SID with the new handle. */
+       if ((info = get_samr_info_by_sid(&sid)) == NULL) {
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       ZERO_STRUCTP(info);
+       info->sid = sid;
+       info->acc_granted = acc_granted;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, user_pol, free_samr_info, (void *)info)) {
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+       }
+
+       /* After a "set" ensure we have no cached display info. */
+       force_flush_samr_cache(info->disp_info);
+
+       r_u->user_rid=pdb_get_user_rid(sam_pass);
+
+       r_u->access_granted = acc_granted;
+
+       pdb_free_sam(&sam_pass);
+
+       return NT_STATUS_OK;
+}
+
+/*******************************************************************
+ samr_reply_connect_anon
+ ********************************************************************/
+
+NTSTATUS _samr_connect_anon(pipes_struct *p, SAMR_Q_CONNECT_ANON *q_u, SAMR_R_CONNECT_ANON *r_u)
+{
+       struct samr_info *info = NULL;
+       uint32    des_access = q_u->access_mask;
+
+       /* Access check */
+
+       if (!pipe_access_check(p)) {
+               DEBUG(3, ("access denied to samr_connect_anon\n"));
+               r_u->status = NT_STATUS_ACCESS_DENIED;
+               return r_u->status;
+       }
+
+       /* set up the SAMR connect_anon response */
+
+       r_u->status = NT_STATUS_OK;
+
+       /* associate the user's SID with the new handle. */
+       if ((info = get_samr_info_by_sid(NULL)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       /* don't give away the farm but this is probably ok.  The SA_RIGHT_SAM_ENUM_DOMAINS
+          was observed from a win98 client trying to enumerate users (when configured  
+          user level access control on shares)   --jerry */
+          
+       se_map_generic( &des_access, &sam_generic_mapping );
+       info->acc_granted = des_access & (SA_RIGHT_SAM_ENUM_DOMAINS|SA_RIGHT_SAM_OPEN_DOMAIN);
+       
+       info->status = q_u->unknown_0;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info))
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ samr_reply_connect
+ ********************************************************************/
+
+NTSTATUS _samr_connect(pipes_struct *p, SAMR_Q_CONNECT *q_u, SAMR_R_CONNECT *r_u)
+{
+       struct samr_info *info = NULL;
+       SEC_DESC *psd = NULL;
+       uint32    acc_granted;
+       uint32    des_access = q_u->access_mask;
+       NTSTATUS  nt_status;
+       size_t    sd_size;
+
+
+       DEBUG(5,("_samr_connect: %d\n", __LINE__));
+
+       /* Access check */
+
+       if (!pipe_access_check(p)) {
+               DEBUG(3, ("access denied to samr_connect\n"));
+               r_u->status = NT_STATUS_ACCESS_DENIED;
+               return r_u->status;
+       }
+
+       make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
+       se_map_generic(&des_access, &sam_generic_mapping);
+       
+       nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
+               NULL, 0, des_access, &acc_granted, "_samr_connect");
+       
+       if ( !NT_STATUS_IS_OK(nt_status) ) 
+               return nt_status;
+
+       r_u->status = NT_STATUS_OK;
+
+       /* associate the user's SID and access granted with the new handle. */
+       if ((info = get_samr_info_by_sid(NULL)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       info->acc_granted = acc_granted;
+       info->status = q_u->access_mask;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info))
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+       DEBUG(5,("_samr_connect: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ samr_connect4
+ ********************************************************************/
+
+NTSTATUS _samr_connect4(pipes_struct *p, SAMR_Q_CONNECT4 *q_u, SAMR_R_CONNECT4 *r_u)
+{
+       struct samr_info *info = NULL;
+       SEC_DESC *psd = NULL;
+       uint32    acc_granted;
+       uint32    des_access = q_u->access_mask;
+       NTSTATUS  nt_status;
+       size_t    sd_size;
+
+
+       DEBUG(5,("_samr_connect4: %d\n", __LINE__));
+
+       /* Access check */
+
+       if (!pipe_access_check(p)) {
+               DEBUG(3, ("access denied to samr_connect4\n"));
+               r_u->status = NT_STATUS_ACCESS_DENIED;
+               return r_u->status;
+       }
+
+       make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
+       se_map_generic(&des_access, &sam_generic_mapping);
+       
+       nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
+               NULL, 0, des_access, &acc_granted, "_samr_connect4");
+       
+       if ( !NT_STATUS_IS_OK(nt_status) ) 
+               return nt_status;
+
+       r_u->status = NT_STATUS_OK;
+
+       /* associate the user's SID and access granted with the new handle. */
+       if ((info = get_samr_info_by_sid(NULL)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       info->acc_granted = acc_granted;
+       info->status = q_u->access_mask;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info))
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+       DEBUG(5,("_samr_connect: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/**********************************************************************
+ api_samr_lookup_domain
+ **********************************************************************/
+
+NTSTATUS _samr_lookup_domain(pipes_struct *p, SAMR_Q_LOOKUP_DOMAIN *q_u, SAMR_R_LOOKUP_DOMAIN *r_u)
+{
+       struct samr_info *info;
+       fstring domain_name;
+       DOM_SID sid;
+
+       r_u->status = NT_STATUS_OK;
+
+       if (!find_policy_by_hnd(p, &q_u->connect_pol, (void**)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       /* win9x user manager likes to use SA_RIGHT_SAM_ENUM_DOMAINS here.  
+          Reverted that change so we will work with RAS servers again */
+
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, 
+               SA_RIGHT_SAM_OPEN_DOMAIN, "_samr_lookup_domain"))) 
+       {
+               return r_u->status;
+       }
+
+       rpcstr_pull(domain_name, q_u->uni_domain.buffer, sizeof(domain_name), q_u->uni_domain.uni_str_len*2, 0);
+
+       ZERO_STRUCT(sid);
+
+       if (strequal(domain_name, builtin_domain_name())) {
+               sid_copy(&sid, &global_sid_Builtin);
+       } else {
+       if (!secrets_fetch_domain_sid(domain_name, &sid)) {
+               r_u->status = NT_STATUS_NO_SUCH_DOMAIN;
+       }
+       }
+
+       DEBUG(2,("Returning domain sid for domain %s -> %s\n", domain_name, sid_string_static(&sid)));
+
+       init_samr_r_lookup_domain(r_u, &sid, r_u->status);
+
+       return r_u->status;
+}
+
+/******************************************************************
+makes a SAMR_R_ENUM_DOMAINS structure.
+********************************************************************/
+
+static BOOL make_enum_domains(TALLOC_CTX *ctx, SAM_ENTRY **pp_sam,
+                       UNISTR2 **pp_uni_name, uint32 num_sam_entries, fstring doms[])
+{
+       uint32 i;
+       SAM_ENTRY *sam;
+       UNISTR2 *uni_name;
+
+       DEBUG(5, ("make_enum_domains\n"));
+
+       *pp_sam = NULL;
+       *pp_uni_name = NULL;
+
+       if (num_sam_entries == 0)
+               return True;
+
+       sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_sam_entries);
+       uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_sam_entries);
+
+       if (sam == NULL || uni_name == NULL)
+               return False;
+
+       for (i = 0; i < num_sam_entries; i++) {
+               init_unistr2(&uni_name[i], doms[i], UNI_FLAGS_NONE);
+               init_sam_entry(&sam[i], &uni_name[i], 0);
+       }
+
+       *pp_sam = sam;
+       *pp_uni_name = uni_name;
+
+       return True;
+}
+
+/**********************************************************************
+ api_samr_enum_domains
+ **********************************************************************/
+
+NTSTATUS _samr_enum_domains(pipes_struct *p, SAMR_Q_ENUM_DOMAINS *q_u, SAMR_R_ENUM_DOMAINS *r_u)
+{
+       struct samr_info *info;
+       uint32 num_entries = 2;
+       fstring dom[2];
+       const char *name;
+
+       r_u->status = NT_STATUS_OK;
+       
+       if (!find_policy_by_hnd(p, &q_u->pol, (void**)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, SA_RIGHT_SAM_ENUM_DOMAINS, "_samr_enum_domains"))) {
+               return r_u->status;
+       }
+
+       name = get_global_sam_name();
+
+       fstrcpy(dom[0],name);
+       strupper_m(dom[0]);
+       fstrcpy(dom[1],"Builtin");
+
+       if (!make_enum_domains(p->mem_ctx, &r_u->sam, &r_u->uni_dom_name, num_entries, dom))
+               return NT_STATUS_NO_MEMORY;
+
+       init_samr_r_enum_domains(r_u, q_u->start_idx + num_entries, num_entries);
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ api_samr_open_alias
+ ********************************************************************/
+
+NTSTATUS _samr_open_alias(pipes_struct *p, SAMR_Q_OPEN_ALIAS *q_u, SAMR_R_OPEN_ALIAS *r_u)
+{
+       DOM_SID sid;
+       POLICY_HND domain_pol = q_u->dom_pol;
+       uint32 alias_rid = q_u->rid_alias;
+       POLICY_HND *alias_pol = &r_u->pol;
+       struct    samr_info *info = NULL;
+       SEC_DESC *psd = NULL;
+       uint32    acc_granted;
+       uint32    des_access = q_u->access_mask;
+       size_t    sd_size;
+       NTSTATUS  status;
+       SE_PRIV se_rights;
+
+       r_u->status = NT_STATUS_OK;
+
+       /* find the domain policy and get the SID / access bits stored in the domain policy */
+       
+       if ( !get_lsa_policy_samr_sid(p, &domain_pol, &sid, &acc_granted, NULL) )
+               return NT_STATUS_INVALID_HANDLE;
+       
+       status = access_check_samr_function(acc_granted, 
+               SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_alias");
+               
+       if ( !NT_STATUS_IS_OK(status) ) 
+               return status;
+
+       /* append the alias' RID to it */
+       
+       if (!sid_append_rid(&sid, alias_rid))
+               return NT_STATUS_NO_SUCH_USER;
+               
+       /*check if access can be granted as requested by client. */
+       
+       make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &ali_generic_mapping, NULL, 0);
+       se_map_generic(&des_access,&ali_generic_mapping);
+       
+       se_priv_copy( &se_rights, &se_add_users );
+       
+       
+       status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
+               &se_rights, GENERIC_RIGHTS_ALIAS_WRITE, des_access, 
+               &acc_granted, "_samr_open_alias");
+               
+       if ( !NT_STATUS_IS_OK(status) )
+               return status;
+
+       /*
+        * we should check if the rid really exist !!!
+        * JFM.
+        */
+
+       /* associate the alias SID with the new handle. */
+       if ((info = get_samr_info_by_sid(&sid)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+               
+       info->acc_granted = acc_granted;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, alias_pol, free_samr_info, (void *)info))
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ set_user_info_7
+ ********************************************************************/
+static NTSTATUS set_user_info_7(const SAM_USER_INFO_7 *id7, SAM_ACCOUNT *pwd)
+{
+       fstring new_name;
+       SAM_ACCOUNT *check_acct = NULL;
+       NTSTATUS rc;
+       BOOL check_rc;
+
+       if (id7 == NULL) {
+               DEBUG(5, ("set_user_info_7: NULL id7\n"));
+               pdb_free_sam(&pwd);
+               return NT_STATUS_ACCESS_DENIED;
+       }
+
+       if(!rpcstr_pull(new_name, id7->uni_name.buffer, sizeof(new_name), id7->uni_name.uni_str_len*2, 0)) {
+               DEBUG(5, ("set_user_info_7: failed to get new username\n"));
+               pdb_free_sam(&pwd);
+               return NT_STATUS_ACCESS_DENIED;
+       }
+
+       /* check to see if the new username already exists.  Note: we can't
+          reliably lock all backends, so there is potentially the 
+          possibility that a user can be created in between this check and
+          the rename.  The rename should fail, but may not get the
+          exact same failure status code.  I think this is small enough
+          of a window for this type of operation and the results are
+          simply that the rename fails with a slightly different status
+          code (like UNSUCCESSFUL instead of ALREADY_EXISTS). */
+
+       pdb_init_sam(&check_acct);
+       check_rc = pdb_getsampwnam(check_acct, new_name);
+       pdb_free_sam(&check_acct);
+
+       if (check_rc == True) {
+               /* this account exists: say so */
+               return NT_STATUS_USER_EXISTS;
+       }
+
+       rc = pdb_rename_sam_account(pwd, new_name);
+
+       pdb_free_sam(&pwd);
+       return rc;
+}
+
+/*******************************************************************
+ set_user_info_16
+ ********************************************************************/
+
+static BOOL set_user_info_16(const SAM_USER_INFO_16 *id16, SAM_ACCOUNT *pwd)
+{
+       if (id16 == NULL) {
+               DEBUG(5, ("set_user_info_16: NULL id16\n"));
+               pdb_free_sam(&pwd);
+               return False;
+       }
+       
+       /* FIX ME: check if the value is really changed --metze */
+       if (!pdb_set_acct_ctrl(pwd, id16->acb_info, PDB_CHANGED)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+
+       if(!pdb_update_sam_account(pwd)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+
+       pdb_free_sam(&pwd);
+
+       return True;
+}
+
+/*******************************************************************
+ set_user_info_18
+ ********************************************************************/
+
+static BOOL set_user_info_18(SAM_USER_INFO_18 *id18, SAM_ACCOUNT *pwd)
+{
+
+       if (id18 == NULL) {
+               DEBUG(2, ("set_user_info_18: id18 is NULL\n"));
+               pdb_free_sam(&pwd);
+               return False;
+       }
+       if (!pdb_set_lanman_passwd (pwd, id18->lm_pwd, PDB_CHANGED)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+       if (!pdb_set_nt_passwd     (pwd, id18->nt_pwd, PDB_CHANGED)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+       if (!pdb_set_pass_changed_now (pwd)) {
+               pdb_free_sam(&pwd);
+               return False; 
+       }
+       if(!pdb_update_sam_account(pwd)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+
+       pdb_free_sam(&pwd);
+       return True;
+}
+
+/*******************************************************************
+ The GROUPSID field in the SAM_ACCOUNT changed. Try to tell unix.
+ ********************************************************************/
+static BOOL set_unix_primary_group(SAM_ACCOUNT *sampass)
+{
+       struct group *grp;
+       gid_t gid;
+
+       if (!NT_STATUS_IS_OK(sid_to_gid(pdb_get_group_sid(sampass),
+                                       &gid))) {
+               DEBUG(2,("Could not get gid for primary group of "
+                        "user %s\n", pdb_get_username(sampass)));
+               return False;
+       }
+
+       grp = getgrgid(gid);
+
+       if (grp == NULL) {
+               DEBUG(2,("Could not find primary group %lu for "
+                        "user %s\n", (unsigned long)gid, 
+                        pdb_get_username(sampass)));
+               return False;
+       }
+
+       if (smb_set_primary_group(grp->gr_name,
+                                 pdb_get_username(sampass)) != 0) {
+               DEBUG(2,("Could not set primary group for user %s to "
+                        "%s\n",
+                        pdb_get_username(sampass), grp->gr_name));
+               return False;
+       }
+
+       return True;
+}
+       
+
+/*******************************************************************
+ set_user_info_20
+ ********************************************************************/
+
+static BOOL set_user_info_20(SAM_USER_INFO_20 *id20, SAM_ACCOUNT *pwd)
+{
+       if (id20 == NULL) {
+               DEBUG(5, ("set_user_info_20: NULL id20\n"));
+               return False;
+       }
+       copy_id20_to_sam_passwd(pwd, id20);
+
+       /* write the change out */
+       if(!pdb_update_sam_account(pwd)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+
+       pdb_free_sam(&pwd);
+
+       return True;
+}
+/*******************************************************************
+ set_user_info_21
+ ********************************************************************/
+
+static BOOL set_user_info_21(SAM_USER_INFO_21 *id21, SAM_ACCOUNT *pwd)
+{
+       if (id21 == NULL) {
+               DEBUG(5, ("set_user_info_21: NULL id21\n"));
+               return False;
+       }
+       copy_id21_to_sam_passwd(pwd, id21);
+       /*
+        * The funny part about the previous two calls is
+        * that pwd still has the password hashes from the
+        * passdb entry.  These have not been updated from
+        * id21.  I don't know if they need to be set.    --jerry
+        */
+       if (IS_SAM_CHANGED(pwd, PDB_GROUPSID))
+               set_unix_primary_group(pwd);
+
+       /* write the change out */
+       if(!pdb_update_sam_account(pwd)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+
+       pdb_free_sam(&pwd);
+
+       return True;
+}
+
+/*******************************************************************
+ set_user_info_23
+ ********************************************************************/
+
+static BOOL set_user_info_23(SAM_USER_INFO_23 *id23, SAM_ACCOUNT *pwd)
+{
+       pstring plaintext_buf;
+       uint32 len;
+       uint16 acct_ctrl;
+       if (id23 == NULL) {
+               DEBUG(5, ("set_user_info_23: NULL id23\n"));
+               return False;
+       }
+       DEBUG(5, ("Attempting administrator password change (level 23) for user %s\n",
+                 pdb_get_username(pwd)));
+
+       acct_ctrl = pdb_get_acct_ctrl(pwd);
+
+       if (!decode_pw_buffer(id23->pass, plaintext_buf, 256, &len, STR_UNICODE)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+  
+       if (!pdb_set_plaintext_passwd (pwd, plaintext_buf)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+       copy_id23_to_sam_passwd(pwd, id23);
+       /* if it's a trust account, don't update /etc/passwd */
+       if (    ( (acct_ctrl &  ACB_DOMTRUST) == ACB_DOMTRUST ) ||
+               ( (acct_ctrl &  ACB_WSTRUST) ==  ACB_WSTRUST) ||
+               ( (acct_ctrl &  ACB_SVRTRUST) ==  ACB_SVRTRUST) ) {
+               DEBUG(5, ("Changing trust account or non-unix-user password, not updating /etc/passwd\n"));
+       } else  {
+               /* update the UNIX password */
+               if (lp_unix_password_sync() ) {
+                       struct passwd *passwd = Get_Pwnam(pdb_get_username(pwd));
+                       if (!passwd) {
+                               DEBUG(1, ("chgpasswd: Username does not exist in system !?!\n"));
+                       }
+                       
+                       if(!chgpasswd(pdb_get_username(pwd), passwd, "", plaintext_buf, True)) {
+                               pdb_free_sam(&pwd);
+                               return False;
+                       }
+               }
+       }
+       ZERO_STRUCT(plaintext_buf);
+       if (IS_SAM_CHANGED(pwd, PDB_GROUPSID))
+               set_unix_primary_group(pwd);
+
+       if(!pdb_update_sam_account(pwd)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+       pdb_free_sam(&pwd);
+
+       return True;
+}
+
+/*******************************************************************
+ set_user_info_pw
+ ********************************************************************/
+
+static BOOL set_user_info_pw(uint8 *pass, SAM_ACCOUNT *pwd)
+{
+       uint32 len;
+       pstring plaintext_buf;
+       uint16 acct_ctrl;
+       DEBUG(5, ("Attempting administrator password change for user %s\n",
+                 pdb_get_username(pwd)));
+
+       acct_ctrl = pdb_get_acct_ctrl(pwd);
+
+       ZERO_STRUCT(plaintext_buf);
+       if (!decode_pw_buffer(pass, plaintext_buf, 256, &len, STR_UNICODE)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+
+       if (!pdb_set_plaintext_passwd (pwd, plaintext_buf)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+       /* if it's a trust account, don't update /etc/passwd */
+       if ( ( (acct_ctrl &  ACB_DOMTRUST) == ACB_DOMTRUST ) ||
+               ( (acct_ctrl &  ACB_WSTRUST) ==  ACB_WSTRUST) ||
+               ( (acct_ctrl &  ACB_SVRTRUST) ==  ACB_SVRTRUST) ) {
+               DEBUG(5, ("Changing trust account or non-unix-user password, not updating /etc/passwd\n"));
+       } else {
+               /* update the UNIX password */
+               if (lp_unix_password_sync()) {
+                       struct passwd *passwd = Get_Pwnam(pdb_get_username(pwd));
+                       if (!passwd) {
+                               DEBUG(1, ("chgpasswd: Username does not exist in system !?!\n"));
+                       }
+                       
+                       if(!chgpasswd(pdb_get_username(pwd), passwd, "", plaintext_buf, True)) {
+                               pdb_free_sam(&pwd);
+                               return False;
+                       }
+               }
+       }
+       ZERO_STRUCT(plaintext_buf);
+       DEBUG(5,("set_user_info_pw: pdb_update_pwd()\n"));
+       /* update the SAMBA password */
+       if(!pdb_update_sam_account(pwd)) {
+               pdb_free_sam(&pwd);
+               return False;
+       }
+
+       pdb_free_sam(&pwd);
+
+       return True;
+}
+
+/*******************************************************************
+ samr_reply_set_userinfo
+ ********************************************************************/
+
+NTSTATUS _samr_set_userinfo(pipes_struct *p, SAMR_Q_SET_USERINFO *q_u, SAMR_R_SET_USERINFO *r_u)
+{
+       SAM_ACCOUNT *pwd = NULL;
+       DOM_SID sid;
+       POLICY_HND *pol = &q_u->pol;
+       uint16 switch_value = q_u->switch_value;
+       SAM_USERINFO_CTR *ctr = q_u->ctr;
+       uint32 acc_granted;
+       uint32 acc_required;
+       BOOL ret;
+       BOOL has_enough_rights = False;
+       uint32 acb_info;
+       DISP_INFO *disp_info = NULL;
+
+       DEBUG(5, ("_samr_set_userinfo: %d\n", __LINE__));
+
+       r_u->status = NT_STATUS_OK;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, pol, &sid, &acc_granted, &disp_info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       /* observed when joining an XP client to a Samba domain */
+       
+       acc_required = SA_RIGHT_USER_SET_PASSWORD | SA_RIGHT_USER_SET_ATTRIBUTES | SA_RIGHT_USER_ACCT_FLAGS_EXPIRY;     
+
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, acc_required, "_samr_set_userinfo"))) {
+               return r_u->status;
+       }
+
+       DEBUG(5, ("_samr_set_userinfo: sid:%s, level:%d\n", sid_string_static(&sid), switch_value));
+
+       if (ctr == NULL) {
+               DEBUG(5, ("_samr_set_userinfo: NULL info level\n"));
+               return NT_STATUS_INVALID_INFO_CLASS;
+       }
+       
+       pdb_init_sam(&pwd);     
+       
+       become_root();
+       ret = pdb_getsampwsid(pwd, &sid);
+       unbecome_root();
+       
+       if ( !ret ) {
+               pdb_free_sam(&pwd);
+               return NT_STATUS_NO_SUCH_USER;
+       }
+       
+       /* deal with machine password changes differently from userinfo changes */
+       /* check to see if we have the sufficient rights */
+       
+       acb_info = pdb_get_acct_ctrl(pwd);
+       if ( acb_info & ACB_WSTRUST ) 
+               has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_machine_account);
+       else if ( acb_info & ACB_NORMAL )
+               has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
+       else if ( acb_info & (ACB_SVRTRUST|ACB_DOMTRUST) ) {
+               if ( lp_enable_privileges() )
+                       has_enough_rights = nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS );
+       }
+       
+       DEBUG(5, ("_samr_set_userinfo: %s does%s possess sufficient rights\n",
+               p->pipe_user_name, has_enough_rights ? "" : " not"));
+
+       /* ================ BEGIN SeMachineAccountPrivilege BLOCK ================ */
+       
+       if ( has_enough_rights )                                
+               become_root(); 
+       
+       /* ok!  user info levels (lots: see MSDEV help), off we go... */
+
+       switch (switch_value) {
+               case 18:
+                       if (!set_user_info_18(ctr->info.id18, pwd))
+                               r_u->status = NT_STATUS_ACCESS_DENIED;
+                       break;
+
+               case 24:
+                       if (!p->session_key.length) {
+                               r_u->status = NT_STATUS_NO_USER_SESSION_KEY;
+                       }
+                       SamOEMhashBlob(ctr->info.id24->pass, 516, &p->session_key);
+
+                       dump_data(100, (char *)ctr->info.id24->pass, 516);
+
+                       if (!set_user_info_pw(ctr->info.id24->pass, pwd))
+                               r_u->status = NT_STATUS_ACCESS_DENIED;
+                       break;
+
+               case 25:
+#if 0
+                       /*
+                        * Currently we don't really know how to unmarshall
+                        * the level 25 struct, and the password encryption
+                        * is different. This is a placeholder for when we
+                        * do understand it. In the meantime just return INVALID
+                        * info level and W2K SP2 drops down to level 23... JRA.
+                        */
+
+                       if (!p->session_key.length) {
+                               r_u->status = NT_STATUS_NO_USER_SESSION_KEY;
+                       }
+                       SamOEMhashBlob(ctr->info.id25->pass, 532, &p->session_key);
+
+                       dump_data(100, (char *)ctr->info.id25->pass, 532);
+
+                       if (!set_user_info_pw(ctr->info.id25->pass, &sid))
+                               r_u->status = NT_STATUS_ACCESS_DENIED;
+                       break;
+#endif
+                       r_u->status = NT_STATUS_INVALID_INFO_CLASS;
+                       break;
+
+               case 23:
+                       if (!p->session_key.length) {
+                               r_u->status = NT_STATUS_NO_USER_SESSION_KEY;
+                       }
+                       SamOEMhashBlob(ctr->info.id23->pass, 516, &p->session_key);
+
+                       dump_data(100, (char *)ctr->info.id23->pass, 516);
+
+                       if (!set_user_info_23(ctr->info.id23, pwd))
+                               r_u->status = NT_STATUS_ACCESS_DENIED;
+                       break;
+
+               default:
+                       r_u->status = NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       
+       if ( has_enough_rights )                                
+               unbecome_root();
+               
+       /* ================ END SeMachineAccountPrivilege BLOCK ================ */
+
+       if (NT_STATUS_IS_OK(r_u->status)) {
+               force_flush_samr_cache(disp_info);
+       }
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ samr_reply_set_userinfo2
+ ********************************************************************/
+
+NTSTATUS _samr_set_userinfo2(pipes_struct *p, SAMR_Q_SET_USERINFO2 *q_u, SAMR_R_SET_USERINFO2 *r_u)
+{
+       SAM_ACCOUNT *pwd = NULL;
+       DOM_SID sid;
+       SAM_USERINFO_CTR *ctr = q_u->ctr;
+       POLICY_HND *pol = &q_u->pol;
+       uint16 switch_value = q_u->switch_value;
+       uint32 acc_granted;
+       uint32 acc_required;
+       BOOL ret;
+       BOOL has_enough_rights = False;
+       uint32 acb_info;
+       DISP_INFO *disp_info = NULL;
+
+       DEBUG(5, ("samr_reply_set_userinfo2: %d\n", __LINE__));
+
+       r_u->status = NT_STATUS_OK;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, pol, &sid, &acc_granted, &disp_info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       /* observed when joining XP client to Samba domain */
+               
+       acc_required = SA_RIGHT_USER_SET_PASSWORD | SA_RIGHT_USER_SET_ATTRIBUTES | SA_RIGHT_USER_ACCT_FLAGS_EXPIRY;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, acc_required, "_samr_set_userinfo2"))) {
+               return r_u->status;
+       }
+
+       DEBUG(5, ("samr_reply_set_userinfo2: sid:%s\n", sid_string_static(&sid)));
+
+       if (ctr == NULL) {
+               DEBUG(5, ("samr_reply_set_userinfo2: NULL info level\n"));
+               return NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       switch_value=ctr->switch_value;
+
+       pdb_init_sam(&pwd);     
+       
+       become_root();
+       ret = pdb_getsampwsid(pwd, &sid);
+       unbecome_root();
+       
+       if ( !ret ) {
+               pdb_free_sam(&pwd);
+               return NT_STATUS_NO_SUCH_USER;
+       }
+       
+       acb_info = pdb_get_acct_ctrl(pwd);
+       if ( acb_info & ACB_WSTRUST ) 
+               has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_machine_account);
+       else if ( acb_info & ACB_NORMAL )
+               has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
+       else if ( acb_info & (ACB_SVRTRUST|ACB_DOMTRUST) ) {
+               if ( lp_enable_privileges() )
+                       has_enough_rights = nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS );
+       }
+       
+       DEBUG(5, ("_samr_set_userinfo: %s does%s possess sufficient rights\n",
+               p->pipe_user_name, has_enough_rights ? "" : " not"));
+
+       /* ================ BEGIN SeMachineAccountPrivilege BLOCK ================ */
+       
+       if ( has_enough_rights )                                
+               become_root(); 
+       
+       /* ok!  user info levels (lots: see MSDEV help), off we go... */
+       
+       switch (switch_value) {
+               case 7:
+                       r_u->status = set_user_info_7(ctr->info.id7, pwd);
+                       break;
+               case 16:
+                       if (!set_user_info_16(ctr->info.id16, pwd))
+                               r_u->status = NT_STATUS_ACCESS_DENIED;
+                       break;
+               case 18:
+                       /* Used by AS/U JRA. */
+                       if (!set_user_info_18(ctr->info.id18, pwd))
+                               r_u->status = NT_STATUS_ACCESS_DENIED;
+                       break;
+               case 20:
+                       if (!set_user_info_20(ctr->info.id20, pwd))
+                               r_u->status = NT_STATUS_ACCESS_DENIED;
+                       break;
+               case 21:
+                       if (!set_user_info_21(ctr->info.id21, pwd))
+                               return NT_STATUS_ACCESS_DENIED;
+                       break;
+               default:
+                       r_u->status = NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       if ( has_enough_rights )                                
+               unbecome_root();
+               
+       /* ================ END SeMachineAccountPrivilege BLOCK ================ */
+
+       if (NT_STATUS_IS_OK(r_u->status)) {
+               force_flush_samr_cache(disp_info);
+       }
+
+       return r_u->status;
+}
+
+/*********************************************************************
+ _samr_query_aliasmem
+*********************************************************************/
+
+NTSTATUS _samr_query_useraliases(pipes_struct *p, SAMR_Q_QUERY_USERALIASES *q_u, SAMR_R_QUERY_USERALIASES *r_u)
+{
+       size_t num_alias_rids;
+       uint32 *alias_rids;
+       struct samr_info *info = NULL;
+       size_t i;
+               
+       NTSTATUS ntstatus1;
+       NTSTATUS ntstatus2;
+
+       DOM_SID *members;
+       BOOL res;
+
+       r_u->status = NT_STATUS_OK;
+
+       DEBUG(5,("_samr_query_useraliases: %d\n", __LINE__));
+
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+               
+       ntstatus1 = access_check_samr_function(info->acc_granted, SA_RIGHT_DOMAIN_LOOKUP_ALIAS_BY_MEM, "_samr_query_useraliases");
+       ntstatus2 = access_check_samr_function(info->acc_granted, SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_query_useraliases");
+       
+       if (!NT_STATUS_IS_OK(ntstatus1) || !NT_STATUS_IS_OK(ntstatus2)) {
+               if (!(NT_STATUS_EQUAL(ntstatus1,NT_STATUS_ACCESS_DENIED) && NT_STATUS_IS_OK(ntstatus2)) &&
+                   !(NT_STATUS_EQUAL(ntstatus1,NT_STATUS_ACCESS_DENIED) && NT_STATUS_IS_OK(ntstatus1))) {
+                       return (NT_STATUS_IS_OK(ntstatus1)) ? ntstatus2 : ntstatus1;
+               }
+       }               
+
+       if (!sid_check_is_domain(&info->sid) &&
+           !sid_check_is_builtin(&info->sid))
+               return NT_STATUS_OBJECT_TYPE_MISMATCH;
+
+       members = TALLOC_ARRAY(p->mem_ctx, DOM_SID, q_u->num_sids1);
+
+       if (members == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       for (i=0; i<q_u->num_sids1; i++)
+               sid_copy(&members[i], &q_u->sid[i].sid);
+
+       alias_rids = NULL;
+       num_alias_rids = 0;
+
+       become_root();
+       res = pdb_enum_alias_memberships(p->mem_ctx, &info->sid, members,
+                                        q_u->num_sids1,
+                                        &alias_rids, &num_alias_rids);
+       unbecome_root();
+
+       if (!res)
+               return NT_STATUS_UNSUCCESSFUL;
+
+       init_samr_r_query_useraliases(r_u, num_alias_rids, alias_rids,
+                                     NT_STATUS_OK);
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_query_aliasmem
+*********************************************************************/
+
+NTSTATUS _samr_query_aliasmem(pipes_struct *p, SAMR_Q_QUERY_ALIASMEM *q_u, SAMR_R_QUERY_ALIASMEM *r_u)
+{
+       size_t i;
+       size_t num_sids = 0;
+       DOM_SID2 *sid;
+       DOM_SID *sids=NULL;
+
+       DOM_SID alias_sid;
+
+       uint32 acc_granted;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, NULL)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = 
+               access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_GET_MEMBERS, "_samr_query_aliasmem"))) {
+               return r_u->status;
+       }
+
+       DEBUG(10, ("sid is %s\n", sid_string_static(&alias_sid)));
+
+       if (!pdb_enum_aliasmem(&alias_sid, &sids, &num_sids))
+               return NT_STATUS_NO_SUCH_ALIAS;
+
+       sid = TALLOC_ZERO_ARRAY(p->mem_ctx, DOM_SID2, num_sids);        
+       if (num_sids!=0 && sid == NULL) {
+               SAFE_FREE(sids);
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       for (i = 0; i < num_sids; i++) {
+               init_dom_sid2(&sid[i], &sids[i]);
+       }
+
+       init_samr_r_query_aliasmem(r_u, num_sids, sid, NT_STATUS_OK);
+
+       SAFE_FREE(sids);
+
+       return NT_STATUS_OK;
+}
+
+static void add_uid_to_array_unique(uid_t uid, uid_t **uids, int *num)
+{
+       int i;
+
+       for (i=0; i<*num; i++) {
+               if ((*uids)[i] == uid)
+                       return;
+       }
+       
+       *uids = SMB_REALLOC_ARRAY(*uids, uid_t, *num+1);
+
+       if (*uids == NULL)
+               return;
+
+       (*uids)[*num] = uid;
+       *num += 1;
+}
+
+
+static BOOL get_memberuids(gid_t gid, uid_t **uids, int *num)
+{
+       struct group *grp;
+       char **gr;
+       struct sys_pwent *userlist, *user;
+       *uids = NULL;
+       *num = 0;
+
+       /* We only look at our own sam, so don't care about imported stuff */
+
+       winbind_off();
+
+       if ((grp = getgrgid(gid)) == NULL) {
+               winbind_on();
+               return False;
+       }
+
+       /* Primary group members */
+
+       userlist = getpwent_list();
+
+       for (user = userlist; user != NULL; user = user->next) {
+               if (user->pw_gid != gid)
+                       continue;
+               add_uid_to_array_unique(user->pw_uid, uids, num);
+       }
+
+       pwent_free(userlist);
+
+       /* Secondary group members */
+
+       for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
+               struct passwd *pw = getpwnam(*gr);
+
+               if (pw == NULL)
+                       continue;
+               add_uid_to_array_unique(pw->pw_uid, uids, num);
+       }
+
+       winbind_on();
+
+       return True;
+}      
+
+/*********************************************************************
+ _samr_query_groupmem
+*********************************************************************/
+
+NTSTATUS _samr_query_groupmem(pipes_struct *p, SAMR_Q_QUERY_GROUPMEM *q_u, SAMR_R_QUERY_GROUPMEM *r_u)
+{
+       DOM_SID group_sid;
+       fstring group_sid_str;
+       size_t i, num_members;
+
+       uint32 *rid=NULL;
+       uint32 *attr=NULL;
+
+       uint32 acc_granted;
+
+       NTSTATUS result;
+
+       /* find the policy handle.  open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->group_pol, &group_sid, &acc_granted, NULL)) 
+               return NT_STATUS_INVALID_HANDLE;
+               
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_GET_MEMBERS, "_samr_query_groupmem"))) {
+               return r_u->status;
+       }
+               
+       sid_to_string(group_sid_str, &group_sid);
+       DEBUG(10, ("sid is %s\n", group_sid_str));
+
+       if (!sid_check_is_in_our_domain(&group_sid)) {
+               DEBUG(3, ("sid %s is not in our domain\n", group_sid_str));
+               return NT_STATUS_NO_SUCH_GROUP;
+       }
+
+       DEBUG(10, ("lookup on Domain SID\n"));
+
+       become_root();
+       result = pdb_enum_group_members(p->mem_ctx, &group_sid,
+                                       &rid, &num_members);
+       unbecome_root();
+
+       if (!NT_STATUS_IS_OK(result))
+               return result;
+
+       attr=TALLOC_ZERO_ARRAY(p->mem_ctx, uint32, num_members);
+       
+       if ((num_members!=0) && (rid==NULL))
+               return NT_STATUS_NO_MEMORY;
+       
+       for (i=0; i<num_members; i++)
+               attr[i] = SID_NAME_USER;
+
+       init_samr_r_query_groupmem(r_u, num_members, rid, attr, NT_STATUS_OK);
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_add_aliasmem
+*********************************************************************/
+
+NTSTATUS _samr_add_aliasmem(pipes_struct *p, SAMR_Q_ADD_ALIASMEM *q_u, SAMR_R_ADD_ALIASMEM *r_u)
+{
+       DOM_SID alias_sid;
+       uint32 acc_granted;
+       SE_PRIV se_rights;
+       BOOL can_add_accounts;
+       BOOL ret;
+       DISP_INFO *disp_info = NULL;
+
+       /* Find the policy handle. Open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_ADD_MEMBER, "_samr_add_aliasmem"))) {
+               return r_u->status;
+       }
+               
+       DEBUG(10, ("sid is %s\n", sid_string_static(&alias_sid)));
+       
+       se_priv_copy( &se_rights, &se_add_users );
+       can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+       
+       if ( can_add_accounts )
+               become_root();
+       
+       ret = pdb_add_aliasmem(&alias_sid, &q_u->sid.sid);
+       
+       if ( can_add_accounts )
+               unbecome_root();
+               
+       /******** END SeAddUsers BLOCK *********/
+       
+       if (ret) {
+               force_flush_samr_cache(disp_info);
+       }
+
+       return ret ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
+}
+
+/*********************************************************************
+ _samr_del_aliasmem
+*********************************************************************/
+
+NTSTATUS _samr_del_aliasmem(pipes_struct *p, SAMR_Q_DEL_ALIASMEM *q_u, SAMR_R_DEL_ALIASMEM *r_u)
+{
+       DOM_SID alias_sid;
+       uint32 acc_granted;
+       SE_PRIV se_rights;
+       BOOL can_add_accounts;
+       BOOL ret;
+       DISP_INFO *disp_info = NULL;
+
+       /* Find the policy handle. Open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_REMOVE_MEMBER, "_samr_del_aliasmem"))) {
+               return r_u->status;
+       }
+       
+       DEBUG(10, ("_samr_del_aliasmem:sid is %s\n",
+                  sid_string_static(&alias_sid)));
+
+       se_priv_copy( &se_rights, &se_add_users );
+       can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+       
+       if ( can_add_accounts )
+               become_root();
+
+       ret = pdb_del_aliasmem(&alias_sid, &q_u->sid.sid);
+       
+       if ( can_add_accounts )
+               unbecome_root();
+               
+       /******** END SeAddUsers BLOCK *********/
+       
+       if (ret) {
+               force_flush_samr_cache(disp_info);
+       }
+
+       return ret ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
+}
+
+/*********************************************************************
+ _samr_add_groupmem
+*********************************************************************/
+
+NTSTATUS _samr_add_groupmem(pipes_struct *p, SAMR_Q_ADD_GROUPMEM *q_u, SAMR_R_ADD_GROUPMEM *r_u)
+{
+       DOM_SID group_sid;
+       DOM_SID user_sid;
+       fstring group_sid_str;
+       uid_t uid;
+       struct passwd *pwd;
+       struct group *grp;
+       fstring grp_name;
+       GROUP_MAP map;
+       NTSTATUS ret;
+       SAM_ACCOUNT *sam_user=NULL;
+       BOOL check;
+       uint32 acc_granted;
+       SE_PRIV se_rights;
+       BOOL can_add_accounts;
+       DISP_INFO *disp_info = NULL;
+
+       /* Find the policy handle. Open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_ADD_MEMBER, "_samr_add_groupmem"))) {
+               return r_u->status;
+       }
+
+       sid_to_string(group_sid_str, &group_sid);
+       DEBUG(10, ("sid is %s\n", group_sid_str));
+
+       if (sid_compare(&group_sid, get_global_sam_sid())<=0)
+               return NT_STATUS_NO_SUCH_GROUP;
+
+       DEBUG(10, ("lookup on Domain SID\n"));
+
+       if(!get_domain_group_from_sid(group_sid, &map))
+               return NT_STATUS_NO_SUCH_GROUP;
+
+       sid_copy(&user_sid, get_global_sam_sid());
+       sid_append_rid(&user_sid, q_u->rid);
+
+       ret = pdb_init_sam(&sam_user);
+       if (!NT_STATUS_IS_OK(ret))
+               return ret;
+       
+       check = pdb_getsampwsid(sam_user, &user_sid);
+       
+       if (check != True) {
+               pdb_free_sam(&sam_user);
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       /* check a real user exist before we run the script to add a user to a group */
+       if (!NT_STATUS_IS_OK(sid_to_uid(pdb_get_user_sid(sam_user), &uid))) {
+               pdb_free_sam(&sam_user);
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       pdb_free_sam(&sam_user);
+
+       if ((pwd=getpwuid_alloc(uid)) == NULL) {
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       if ((grp=getgrgid(map.gid)) == NULL) {
+               passwd_free(&pwd);
+               return NT_STATUS_NO_SUCH_GROUP;
+       }
+
+       /* we need to copy the name otherwise it's overloaded in user_in_unix_group_list */
+       fstrcpy(grp_name, grp->gr_name);
+
+       /* if the user is already in the group */
+       if(user_in_unix_group_list(pwd->pw_name, grp_name)) {
+               passwd_free(&pwd);
+               return NT_STATUS_MEMBER_IN_GROUP;
+       }
+
+       se_priv_copy( &se_rights, &se_add_users );
+       can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+       
+       if ( can_add_accounts )
+               become_root();
+               
+       /* 
+        * ok, the group exist, the user exist, the user is not in the group,
+        *
+        * we can (finally) add it to the group !
+        */
+
+       smb_add_user_group(grp_name, pwd->pw_name);
+
+       if ( can_add_accounts )
+               unbecome_root();
+               
+       /******** END SeAddUsers BLOCK *********/
+       
+       /* check if the user has been added then ... */
+       if(!user_in_unix_group_list(pwd->pw_name, grp_name)) {
+               passwd_free(&pwd);
+               return NT_STATUS_MEMBER_NOT_IN_GROUP;           /* don't know what to reply else */
+       }
+
+       passwd_free(&pwd);
+
+       force_flush_samr_cache(disp_info);
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_del_groupmem
+*********************************************************************/
+
+NTSTATUS _samr_del_groupmem(pipes_struct *p, SAMR_Q_DEL_GROUPMEM *q_u, SAMR_R_DEL_GROUPMEM *r_u)
+{
+       DOM_SID group_sid;
+       DOM_SID user_sid;
+       SAM_ACCOUNT *sam_pass=NULL;
+       GROUP_MAP map;
+       fstring grp_name;
+       struct group *grp;
+       uint32 acc_granted;
+       SE_PRIV se_rights;
+       BOOL can_add_accounts;
+       DISP_INFO *disp_info = NULL;
+
+       /*
+        * delete the group member named q_u->rid
+        * who is a member of the sid associated with the handle
+        * the rid is a user's rid as the group is a domain group.
+        */
+
+       /* Find the policy handle. Open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_REMOVE_MEMBER, "_samr_del_groupmem"))) {
+               return r_u->status;
+       }
+               
+       if (!sid_check_is_in_our_domain(&group_sid))
+               return NT_STATUS_NO_SUCH_GROUP;
+
+       sid_copy(&user_sid, get_global_sam_sid());
+       sid_append_rid(&user_sid, q_u->rid);
+
+       if (!get_domain_group_from_sid(group_sid, &map))
+               return NT_STATUS_NO_SUCH_GROUP;
+
+       if ((grp=getgrgid(map.gid)) == NULL)
+               return NT_STATUS_NO_SUCH_GROUP;
+
+       /* we need to copy the name otherwise it's overloaded in user_in_group_list */
+       fstrcpy(grp_name, grp->gr_name);
+
+       /* check if the user exists before trying to remove it from the group */
+       pdb_init_sam(&sam_pass);
+       if (!pdb_getsampwsid(sam_pass, &user_sid)) {
+               DEBUG(5,("User %s doesn't exist.\n", pdb_get_username(sam_pass)));
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_NO_SUCH_USER;
+       }
+
+       /* if the user is not in the group */
+       if (!user_in_unix_group_list(pdb_get_username(sam_pass), grp_name)) {
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_MEMBER_NOT_IN_GROUP;
+       }
+       
+
+       se_priv_copy( &se_rights, &se_add_users );
+       can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+       
+       if ( can_add_accounts )
+               become_root();
+               
+       smb_delete_user_group(grp_name, pdb_get_username(sam_pass));
+
+       if ( can_add_accounts )
+               unbecome_root();
+               
+       /******** END SeAddUsers BLOCK *********/
+       
+       /* check if the user has been removed then ... */
+       if (user_in_unix_group_list(pdb_get_username(sam_pass), grp_name)) {
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_ACCESS_DENIED;         /* don't know what to reply else */
+       }
+       
+       pdb_free_sam(&sam_pass);
+
+       force_flush_samr_cache(disp_info);
+
+       return NT_STATUS_OK;
+
+}
+
+/****************************************************************************
+ Delete a UNIX user on demand.
+****************************************************************************/
+
+static int smb_delete_user(const char *unix_user)
+{
+       pstring del_script;
+       int ret;
+
+       pstrcpy(del_script, lp_deluser_script());
+       if (! *del_script)
+               return -1;
+       all_string_sub(del_script, "%u", unix_user, sizeof(del_script));
+       ret = smbrun(del_script,NULL);
+       flush_pwnam_cache();
+       DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
+
+       return ret;
+}
+
+/*********************************************************************
+ _samr_delete_dom_user
+*********************************************************************/
+
+NTSTATUS _samr_delete_dom_user(pipes_struct *p, SAMR_Q_DELETE_DOM_USER *q_u, SAMR_R_DELETE_DOM_USER *r_u )
+{
+       DOM_SID user_sid;
+       SAM_ACCOUNT *sam_pass=NULL;
+       uint32 acc_granted;
+       BOOL can_add_accounts;
+       BOOL ret;
+       DISP_INFO *disp_info = NULL;
+
+       DEBUG(5, ("_samr_delete_dom_user: %d\n", __LINE__));
+
+       /* Find the policy handle. Open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->user_pol, &user_sid, &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+               
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_delete_dom_user"))) {
+               return r_u->status;
+       }
+               
+       if (!sid_check_is_in_our_domain(&user_sid))
+               return NT_STATUS_CANNOT_DELETE;
+
+       /* check if the user exists before trying to delete */
+       pdb_init_sam(&sam_pass);
+       if(!pdb_getsampwsid(sam_pass, &user_sid)) {
+               DEBUG(5,("_samr_delete_dom_user:User %s doesn't exist.\n", 
+                       sid_string_static(&user_sid)));
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_NO_SUCH_USER;
+       }
+       
+       can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+       
+       if ( can_add_accounts )
+               become_root();
+
+       /* First delete the samba side....
+          code is order to prevent unnecessary returns out of the admin 
+          block of code */
+          
+       if ( (ret = pdb_delete_sam_account(sam_pass)) == True ) {
+               /*
+                * Now delete the unix side ....
+                * note: we don't check if the delete really happened
+                * as the script is not necessary present
+                * and maybe the sysadmin doesn't want to delete the unix side
+                */
+               smb_delete_user( pdb_get_username(sam_pass) );
+       }
+       
+       if ( can_add_accounts )
+               unbecome_root();
+               
+       /******** END SeAddUsers BLOCK *********/
+               
+       if ( !ret ) {
+               DEBUG(5,("_samr_delete_dom_user:Failed to delete entry for user %s.\n", pdb_get_username(sam_pass)));
+               pdb_free_sam(&sam_pass);
+               return NT_STATUS_CANNOT_DELETE;
+       }
+
+
+       pdb_free_sam(&sam_pass);
+
+       if (!close_policy_hnd(p, &q_u->user_pol))
+               return NT_STATUS_OBJECT_NAME_INVALID;
+
+       force_flush_samr_cache(disp_info);
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_delete_dom_group
+*********************************************************************/
+
+NTSTATUS _samr_delete_dom_group(pipes_struct *p, SAMR_Q_DELETE_DOM_GROUP *q_u, SAMR_R_DELETE_DOM_GROUP *r_u)
+{
+       DOM_SID group_sid;
+       DOM_SID dom_sid;
+       uint32 group_rid;
+       fstring group_sid_str;
+       gid_t gid;
+       struct group *grp;
+       GROUP_MAP map;
+       uint32 acc_granted;
+       SE_PRIV se_rights;
+       BOOL can_add_accounts;
+       BOOL ret;
+       DISP_INFO *disp_info = NULL;
+
+       DEBUG(5, ("samr_delete_dom_group: %d\n", __LINE__));
+
+       /* Find the policy handle. Open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->group_pol, &group_sid, &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+               
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_delete_dom_group"))) {
+               return r_u->status;
+       }
+               
+       sid_copy(&dom_sid, &group_sid);
+       sid_to_string(group_sid_str, &dom_sid);
+       sid_split_rid(&dom_sid, &group_rid);
+
+       DEBUG(10, ("sid is %s\n", group_sid_str));
+
+       /* we check if it's our SID before deleting */
+       if (!sid_equal(&dom_sid, get_global_sam_sid()))
+               return NT_STATUS_NO_SUCH_GROUP;
+
+       DEBUG(10, ("lookup on Domain SID\n"));
+
+       if(!get_domain_group_from_sid(group_sid, &map))
+               return NT_STATUS_NO_SUCH_GROUP;
+
+       gid=map.gid;
+
+       /* check if group really exists */
+       if ( (grp=getgrgid(gid)) == NULL) 
+               return NT_STATUS_NO_SUCH_GROUP;
+
+       se_priv_copy( &se_rights, &se_add_users );
+       can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+       
+       if ( can_add_accounts )
+               become_root();
+
+       /* delete mapping first */
+       
+       if ( (ret = pdb_delete_group_mapping_entry(group_sid)) == True ) {
+               smb_delete_group( grp->gr_name );
+       }
+
+       if ( can_add_accounts )
+               unbecome_root();
+               
+       /******** END SeAddUsers BLOCK *********/
+       
+       if ( !ret ) {
+               DEBUG(5,("_samr_delete_dom_group: Failed to delete mapping entry for group %s.\n", 
+                       group_sid_str));
+               return NT_STATUS_ACCESS_DENIED;
+       }
+       
+       /* don't check that the unix group has been deleted.  Work like 
+          _samr_delet_dom_user() */
+
+       if (!close_policy_hnd(p, &q_u->group_pol))
+               return NT_STATUS_OBJECT_NAME_INVALID;
+
+       force_flush_samr_cache(disp_info);
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_delete_dom_alias
+*********************************************************************/
+
+NTSTATUS _samr_delete_dom_alias(pipes_struct *p, SAMR_Q_DELETE_DOM_ALIAS *q_u, SAMR_R_DELETE_DOM_ALIAS *r_u)
+{
+       DOM_SID alias_sid;
+       uint32 acc_granted;
+       SE_PRIV se_rights;
+       BOOL can_add_accounts;
+       BOOL ret;
+       DISP_INFO *disp_info = NULL;
+
+       DEBUG(5, ("_samr_delete_dom_alias: %d\n", __LINE__));
+
+       /* Find the policy handle. Open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_delete_dom_alias"))) {
+               return r_u->status;
+       }
+
+       DEBUG(10, ("sid is %s\n", sid_string_static(&alias_sid)));
+
+       if (!sid_check_is_in_our_domain(&alias_sid))
+               return NT_STATUS_NO_SUCH_ALIAS;
+               
+       DEBUG(10, ("lookup on Local SID\n"));
+
+       se_priv_copy( &se_rights, &se_add_users );
+       can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+       
+       if ( can_add_accounts )
+               become_root();
+
+       /* Have passdb delete the alias */
+       ret = pdb_delete_alias(&alias_sid);
+       
+       if ( can_add_accounts )
+               unbecome_root();
+               
+       /******** END SeAddUsers BLOCK *********/
+
+       if ( !ret )
+               return NT_STATUS_ACCESS_DENIED;
+
+       if (!close_policy_hnd(p, &q_u->alias_pol))
+               return NT_STATUS_OBJECT_NAME_INVALID;
+
+       force_flush_samr_cache(disp_info);
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_create_dom_group
+*********************************************************************/
+
+NTSTATUS _samr_create_dom_group(pipes_struct *p, SAMR_Q_CREATE_DOM_GROUP *q_u, SAMR_R_CREATE_DOM_GROUP *r_u)
+{
+       DOM_SID dom_sid;
+       DOM_SID info_sid;
+       fstring name;
+       fstring sid_string;
+       struct group *grp;
+       struct samr_info *info;
+       uint32 acc_granted;
+       gid_t gid;
+       SE_PRIV se_rights;
+       BOOL can_add_accounts;
+       NTSTATUS result;
+       DISP_INFO *disp_info = NULL;
+
+       /* Find the policy handle. Open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->pol, &dom_sid, &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_CREATE_GROUP, "_samr_create_dom_group"))) {
+               return r_u->status;
+       }
+               
+       if (!sid_equal(&dom_sid, get_global_sam_sid()))
+               return NT_STATUS_ACCESS_DENIED;
+
+       unistr2_to_ascii(name, &q_u->uni_acct_desc, sizeof(name)-1);
+
+       /* check if group already exist */
+       if ((grp=getgrnam(name)) != NULL)
+               return NT_STATUS_GROUP_EXISTS;
+
+       se_priv_copy( &se_rights, &se_add_users );
+       can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+       
+       if ( can_add_accounts )
+               become_root();
+       
+       /* check that we successfully create the UNIX group */
+       
+       result = NT_STATUS_ACCESS_DENIED;
+       if ( (smb_create_group(name, &gid) == 0) && ((grp=getgrgid(gid)) != NULL) ) {
+       
+               /* so far, so good */
+               
+               result = NT_STATUS_OK;
+               
+               r_u->rid = pdb_gid_to_group_rid( grp->gr_gid );
+
+               /* add the group to the mapping table */
+               
+               sid_copy( &info_sid, get_global_sam_sid() );
+               sid_append_rid( &info_sid, r_u->rid );
+               sid_to_string( sid_string, &info_sid );
+               
+               /* reset the error code if we fail to add the mapping entry */
+               
+               if ( !add_initial_entry(grp->gr_gid, sid_string, SID_NAME_DOM_GRP, name, NULL) )
+                       result = NT_STATUS_ACCESS_DENIED;
+       }
+
+       if ( can_add_accounts )
+               unbecome_root();
+               
+       /******** END SeAddUsers BLOCK *********/
+       
+       /* check if we should bail out here */
+       
+       if ( !NT_STATUS_IS_OK(result) )
+               return result;
+       
+       if ((info = get_samr_info_by_sid(&info_sid)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+
+       /* they created it; let the user do what he wants with it */
+
+       info->acc_granted = GENERIC_RIGHTS_GROUP_ALL_ACCESS;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, &r_u->pol, free_samr_info, (void *)info))
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+       force_flush_samr_cache(disp_info);
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_create_dom_alias
+*********************************************************************/
+
+NTSTATUS _samr_create_dom_alias(pipes_struct *p, SAMR_Q_CREATE_DOM_ALIAS *q_u, SAMR_R_CREATE_DOM_ALIAS *r_u)
+{
+       DOM_SID dom_sid;
+       DOM_SID info_sid;
+       fstring name;
+       struct samr_info *info;
+       uint32 acc_granted;
+       gid_t gid;
+       NTSTATUS result;
+       SE_PRIV se_rights;
+       BOOL can_add_accounts;
+       DISP_INFO *disp_info = NULL;
+
+       /* Find the policy handle. Open a policy on it. */
+       if (!get_lsa_policy_samr_sid(p, &q_u->dom_pol, &dom_sid, &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+               
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_CREATE_ALIAS, "_samr_create_alias"))) {
+               return r_u->status;
+       }
+               
+       if (!sid_equal(&dom_sid, get_global_sam_sid()))
+               return NT_STATUS_ACCESS_DENIED;
+
+       unistr2_to_ascii(name, &q_u->uni_acct_desc, sizeof(name)-1);
+
+       se_priv_copy( &se_rights, &se_add_users );
+       can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+       
+       if ( can_add_accounts )
+               become_root();
+
+       /* Have passdb create the alias */
+       result = pdb_create_alias(name, &r_u->rid);
+
+       if ( can_add_accounts )
+               unbecome_root();
+               
+       /******** END SeAddUsers BLOCK *********/
+
+       if (!NT_STATUS_IS_OK(result))
+               return result;
+
+       sid_copy(&info_sid, get_global_sam_sid());
+       sid_append_rid(&info_sid, r_u->rid);
+
+       if (!NT_STATUS_IS_OK(sid_to_gid(&info_sid, &gid)))
+               return NT_STATUS_ACCESS_DENIED;
+
+       /* check if the group has been successfully created */
+       if ( getgrgid(gid) == NULL )
+               return NT_STATUS_ACCESS_DENIED;
+
+       if ((info = get_samr_info_by_sid(&info_sid)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       /* they created it; let the user do what he wants with it */
+
+       info->acc_granted = GENERIC_RIGHTS_ALIAS_ALL_ACCESS;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, &r_u->alias_pol, free_samr_info, (void *)info))
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+       force_flush_samr_cache(disp_info);
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_query_groupinfo
+
+sends the name/comment pair of a domain group
+level 1 send also the number of users of that group
+*********************************************************************/
+
+NTSTATUS _samr_query_groupinfo(pipes_struct *p, SAMR_Q_QUERY_GROUPINFO *q_u, SAMR_R_QUERY_GROUPINFO *r_u)
+{
+       DOM_SID group_sid;
+       GROUP_MAP map;
+       DOM_SID *sids=NULL;
+       uid_t *uids;
+       int num=0;
+       GROUP_INFO_CTR *ctr;
+       uint32 acc_granted;
+       BOOL ret;
+
+       if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, NULL)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_LOOKUP_INFO, "_samr_query_groupinfo"))) {
+               return r_u->status;
+       }
+               
+       become_root();
+       ret = get_domain_group_from_sid(group_sid, &map);
+       unbecome_root();
+       if (!ret)
+               return NT_STATUS_INVALID_HANDLE;
+
+       ctr=TALLOC_ZERO_P(p->mem_ctx, GROUP_INFO_CTR);
+       if (ctr==NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       switch (q_u->switch_level) {
+               case 1:
+                       ctr->switch_value1 = 1;
+                       if(!get_memberuids(map.gid, &uids, &num))
+                               return NT_STATUS_NO_SUCH_GROUP;
+                       SAFE_FREE(uids);
+                       init_samr_group_info1(&ctr->group.info1, map.nt_name, map.comment, num);
+                       SAFE_FREE(sids);
+                       break;
+               case 3:
+                       ctr->switch_value1 = 3;
+                       init_samr_group_info3(&ctr->group.info3);
+                       break;
+               case 4:
+                       ctr->switch_value1 = 4;
+                       init_samr_group_info4(&ctr->group.info4, map.comment);
+                       break;
+               default:
+                       return NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       init_samr_r_query_groupinfo(r_u, ctr, NT_STATUS_OK);
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_set_groupinfo
+ update a domain group's comment.
+*********************************************************************/
+
+NTSTATUS _samr_set_groupinfo(pipes_struct *p, SAMR_Q_SET_GROUPINFO *q_u, SAMR_R_SET_GROUPINFO *r_u)
+{
+       DOM_SID group_sid;
+       GROUP_MAP map;
+       GROUP_INFO_CTR *ctr;
+       uint32 acc_granted;
+       BOOL ret;
+       BOOL can_mod_accounts;
+       DISP_INFO *disp_info = NULL;
+
+       if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, &disp_info))
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_SET_INFO, "_samr_set_groupinfo"))) {
+               return r_u->status;
+       }
+               
+       if (!get_domain_group_from_sid(group_sid, &map))
+               return NT_STATUS_NO_SUCH_GROUP;
+       
+       ctr=q_u->ctr;
+
+       switch (ctr->switch_value1) {
+               case 1:
+                       unistr2_to_ascii(map.comment, &(ctr->group.info1.uni_acct_desc), sizeof(map.comment)-1);
+                       break;
+               case 4:
+                       unistr2_to_ascii(map.comment, &(ctr->group.info4.uni_acct_desc), sizeof(map.comment)-1);
+                       break;
+               default:
+                       return NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       can_mod_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
+
+       /******** BEGIN SeAddUsers BLOCK *********/
+
+       if ( can_mod_accounts )
+               become_root();
+         
+       ret = pdb_update_group_mapping_entry(&map);
+
+       if ( can_mod_accounts )
+               unbecome_root();
+
+       /******** End SeAddUsers BLOCK *********/
+
+       if (ret) {
+               force_flush_samr_cache(disp_info);
+       }
+
+       return ret ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
+}
+
+/*********************************************************************
+ _samr_set_aliasinfo
+ update an alias's comment.
+*********************************************************************/
+
+NTSTATUS _samr_set_aliasinfo(pipes_struct *p, SAMR_Q_SET_ALIASINFO *q_u, SAMR_R_SET_ALIASINFO *r_u)
+{
+       DOM_SID group_sid;
+       struct acct_info info;
+       ALIAS_INFO_CTR *ctr;
+       uint32 acc_granted;
+       BOOL ret;
+       BOOL can_mod_accounts;
+       DISP_INFO *disp_info = NULL;
+
+       if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &group_sid, &acc_granted, &disp_info))
+               return NT_STATUS_INVALID_HANDLE;
+       
+       if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_SET_INFO, "_samr_set_aliasinfo"))) {
+               return r_u->status;
+       }
+               
+       ctr=&q_u->ctr;
+
+       switch (ctr->level) {
+               case 3:
+                       if ( ctr->alias.info3.description.string ) {
+                               unistr2_to_ascii( info.acct_desc, 
+                                       ctr->alias.info3.description.string, 
+                                       sizeof(info.acct_desc)-1 );
+                       }
+                       else
+                               fstrcpy( info.acct_desc, "" );
+                       break;
+               default:
+                       return NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+        can_mod_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
+
+        /******** BEGIN SeAddUsers BLOCK *********/
+
+        if ( can_mod_accounts )
+                become_root();
+
+        ret = pdb_set_aliasinfo( &group_sid, &info );
+
+        if ( can_mod_accounts )
+                unbecome_root();
+
+        /******** End SeAddUsers BLOCK *********/
+
+       if (ret) {
+               force_flush_samr_cache(disp_info);
+       }
+
+       return ret ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
+}
+
+/*********************************************************************
+ _samr_get_dom_pwinfo
+*********************************************************************/
+
+NTSTATUS _samr_get_dom_pwinfo(pipes_struct *p, SAMR_Q_GET_DOM_PWINFO *q_u, SAMR_R_GET_DOM_PWINFO *r_u)
+{
+       /* Perform access check.  Since this rpc does not require a
+          policy handle it will not be caught by the access checks on
+          SAMR_CONNECT or SAMR_CONNECT_ANON. */
+
+       if (!pipe_access_check(p)) {
+               DEBUG(3, ("access denied to samr_get_dom_pwinfo\n"));
+               r_u->status = NT_STATUS_ACCESS_DENIED;
+               return r_u->status;
+       }
+
+       /* Actually, returning zeros here works quite well :-). */
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_open_group
+*********************************************************************/
+
+NTSTATUS _samr_open_group(pipes_struct *p, SAMR_Q_OPEN_GROUP *q_u, SAMR_R_OPEN_GROUP *r_u)
+{
+       DOM_SID sid;
+       DOM_SID info_sid;
+       GROUP_MAP map;
+       struct samr_info *info;
+       SEC_DESC         *psd = NULL;
+       uint32            acc_granted;
+       uint32            des_access = q_u->access_mask;
+       size_t            sd_size;
+       NTSTATUS          status;
+       fstring sid_string;
+       BOOL ret;
+       SE_PRIV se_rights;
+
+       if (!get_lsa_policy_samr_sid(p, &q_u->domain_pol, &sid, &acc_granted, NULL)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       status = access_check_samr_function(acc_granted, 
+               SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_group");
+               
+       if ( !NT_STATUS_IS_OK(status) )
+               return status;
+               
+       /*check if access can be granted as requested by client. */
+       make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &grp_generic_mapping, NULL, 0);
+       se_map_generic(&des_access,&grp_generic_mapping);
+
+       se_priv_copy( &se_rights, &se_add_users );
+
+       status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
+               &se_rights, GENERIC_RIGHTS_GROUP_WRITE, des_access, 
+               &acc_granted, "_samr_open_group");
+               
+       if ( !NT_STATUS_IS_OK(status) ) 
+               return status;
+
+       /* this should not be hard-coded like this */
+       
+       if (!sid_equal(&sid, get_global_sam_sid()))
+               return NT_STATUS_ACCESS_DENIED;
+
+       sid_copy(&info_sid, get_global_sam_sid());
+       sid_append_rid(&info_sid, q_u->rid_group);
+       sid_to_string(sid_string, &info_sid);
+
+       if ((info = get_samr_info_by_sid(&info_sid)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+               
+       info->acc_granted = acc_granted;
+
+       DEBUG(10, ("_samr_open_group:Opening SID: %s\n", sid_string));
+
+       /* check if that group really exists */
+       become_root();
+       ret = get_domain_group_from_sid(info->sid, &map);
+       unbecome_root();
+       if (!ret)
+               return NT_STATUS_NO_SUCH_GROUP;
+
+       /* get a (unique) handle.  open a policy on it. */
+       if (!create_policy_hnd(p, &r_u->pol, free_samr_info, (void *)info))
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+       return NT_STATUS_OK;
+}
+
+/*********************************************************************
+ _samr_remove_sid_foreign_domain
+*********************************************************************/
+
+NTSTATUS _samr_remove_sid_foreign_domain(pipes_struct *p, 
+                                          SAMR_Q_REMOVE_SID_FOREIGN_DOMAIN *q_u, 
+                                          SAMR_R_REMOVE_SID_FOREIGN_DOMAIN *r_u)
+{
+       DOM_SID                 delete_sid, domain_sid;
+       uint32                  acc_granted;
+       NTSTATUS                result;
+       DISP_INFO *disp_info = NULL;
+
+       sid_copy( &delete_sid, &q_u->sid.sid );
+       
+       DEBUG(5,("_samr_remove_sid_foreign_domain: removing SID [%s]\n",
+               sid_string_static(&delete_sid)));
+               
+       /* Find the policy handle. Open a policy on it. */
+       
+       if (!get_lsa_policy_samr_sid(p, &q_u->dom_pol, &domain_sid,
+                                    &acc_granted, &disp_info)) 
+               return NT_STATUS_INVALID_HANDLE;
+       
+       result = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, 
+               "_samr_remove_sid_foreign_domain");
+               
+       if (!NT_STATUS_IS_OK(result)) 
+               return result;
+                       
+       DEBUG(8, ("_samr_remove_sid_foreign_domain:sid is %s\n", 
+               sid_string_static(&domain_sid)));
+
+       /* we can only delete a user from a group since we don't have 
+          nested groups anyways.  So in the latter case, just say OK */
+
+       /* TODO: The above comment nowadays is bogus. Since we have nested
+        * groups now, and aliases members are never reported out of the unix
+        * group membership, the "just say OK" makes this call a no-op. For
+        * us. This needs fixing however. */
+
+       /* I've only ever seen this in the wild when deleting a user from
+        * usrmgr.exe. domain_sid is the builtin domain, and the sid to delete
+        * is the user about to be deleted. I very much suspect this is the
+        * only application of this call. To verify this, let people report
+        * other cases. */
+
+       if (!sid_check_is_builtin(&domain_sid)) {
+               DEBUG(1,("_samr_remove_sid_foreign_domain: domain_sid = %s, "
+                        "global_sam_sid() = %s\n",
+                        sid_string_static(&domain_sid),
+                        sid_string_static(get_global_sam_sid())));
+               DEBUGADD(1,("please report to samba-technical@samba.org!\n"));
+               return NT_STATUS_OK;
+       }
+
+       force_flush_samr_cache(disp_info);
+
+       result = NT_STATUS_OK;
+
+       return result;
+}
+
+/*******************************************************************
+ _samr_query_domain_info2
+ ********************************************************************/
+
+NTSTATUS _samr_query_domain_info2(pipes_struct *p,
+               SAMR_Q_QUERY_DOMAIN_INFO2 *q_u,
+               SAMR_R_QUERY_DOMAIN_INFO2 *r_u)
+{
+       struct samr_info *info = NULL;
+       SAM_UNK_CTR *ctr;
+       uint32 min_pass_len,pass_hist,flag;
+       time_t u_expire, u_min_age;
+       NTTIME nt_expire, nt_min_age;
+
+       time_t u_lock_duration, u_reset_time;
+       NTTIME nt_lock_duration, nt_reset_time;
+       uint32 lockout;
+       
+       time_t u_logout;
+       NTTIME nt_logout;
+
+       uint32 num_users=0, num_groups=0, num_aliases=0;
+
+       uint32 account_policy_temp;
+
+       time_t seq_num;
+       uint32 server_role;
+
+       if ((ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_UNK_CTR)) == NULL)
+               return NT_STATUS_NO_MEMORY;
+
+       ZERO_STRUCTP(ctr);
+
+       r_u->status = NT_STATUS_OK;
+
+       DEBUG(5,("_samr_query_domain_info2: %d\n", __LINE__));
+
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info))
+               return NT_STATUS_INVALID_HANDLE;
+
+       switch (q_u->switch_value) {
+               case 0x01:
+                       pdb_get_account_policy(AP_MIN_PASSWORD_LEN, &account_policy_temp);
+                       min_pass_len = account_policy_temp;
+
+                       pdb_get_account_policy(AP_PASSWORD_HISTORY, &account_policy_temp);
+                       pass_hist = account_policy_temp;
+
+                       pdb_get_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, &account_policy_temp);
+                       flag = account_policy_temp;
+
+                       pdb_get_account_policy(AP_MAX_PASSWORD_AGE, &account_policy_temp);
+                       u_expire = account_policy_temp;
+
+                       pdb_get_account_policy(AP_MIN_PASSWORD_AGE, &account_policy_temp);
+                       u_min_age = account_policy_temp;
+
+                       unix_to_nt_time_abs(&nt_expire, u_expire);
+                       unix_to_nt_time_abs(&nt_min_age, u_min_age);
+
+                       init_unk_info1(&ctr->info.inf1, (uint16)min_pass_len, (uint16)pass_hist, 
+                                      flag, nt_expire, nt_min_age);
+                       break;
+               case 0x02:
+                       become_root();          
+                       num_users = count_sam_users(info->disp_info, ACB_NORMAL);
+                       num_groups = count_sam_groups(info->disp_info);
+                       num_aliases = count_sam_aliases(info->disp_info);
+                       unbecome_root();
+
+                       pdb_get_account_policy(AP_TIME_TO_LOGOUT, &account_policy_temp);
+                       u_logout = account_policy_temp;
+
+                       unix_to_nt_time_abs(&nt_logout, u_logout);
+
+                       if (!pdb_get_seq_num(&seq_num))
+                               seq_num = time(NULL);
+
+                       server_role = ROLE_DOMAIN_PDC;
+                       if (lp_server_role() == ROLE_DOMAIN_BDC)
+                               server_role = ROLE_DOMAIN_BDC;
+
+                       init_unk_info2(&ctr->info.inf2, lp_serverstring(), lp_workgroup(), global_myname(), seq_num, 
+                                      num_users, num_groups, num_aliases, nt_logout, server_role);
+                       break;
+               case 0x03:
+                       pdb_get_account_policy(AP_TIME_TO_LOGOUT, &account_policy_temp);
+                       u_logout = account_policy_temp;
+
+                       unix_to_nt_time_abs(&nt_logout, u_logout);
+                       
+                       init_unk_info3(&ctr->info.inf3, nt_logout);
+                       break;
+               case 0x05:
+                       init_unk_info5(&ctr->info.inf5, global_myname());
+                       break;
+               case 0x06:
+                       init_unk_info6(&ctr->info.inf6);
+                       break;
+               case 0x07:
+                       server_role = ROLE_DOMAIN_PDC;
+                       if (lp_server_role() == ROLE_DOMAIN_BDC)
+                               server_role = ROLE_DOMAIN_BDC;
+
+                       init_unk_info7(&ctr->info.inf7, server_role);
+                       break;
+               case 0x08:
+                       if (!pdb_get_seq_num(&seq_num))
+                               seq_num = time(NULL);
+
+                       init_unk_info8(&ctr->info.inf8, (uint32) seq_num);
+                       break;
+               case 0x0c:
+                       pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &account_policy_temp);
+                       u_lock_duration = account_policy_temp;
+                       if (u_lock_duration != -1)
+                               u_lock_duration *= 60;
+
+                       pdb_get_account_policy(AP_RESET_COUNT_TIME, &account_policy_temp);
+                       u_reset_time = account_policy_temp * 60;
+
+                       pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_temp);
+                       lockout = account_policy_temp;
+       
+                       unix_to_nt_time_abs(&nt_lock_duration, u_lock_duration);
+                       unix_to_nt_time_abs(&nt_reset_time, u_reset_time);
+       
+                       init_unk_info12(&ctr->info.inf12, nt_lock_duration, nt_reset_time, (uint16)lockout);
+                       break;
+               default:
+                       return NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       init_samr_r_samr_query_domain_info2(r_u, q_u->switch_value, ctr, NT_STATUS_OK);
+
+       DEBUG(5,("_samr_query_domain_info2: %d\n", __LINE__));
+
+       return r_u->status;
+}
+
+/*******************************************************************
+ _samr_
+ ********************************************************************/
+
+NTSTATUS _samr_set_dom_info(pipes_struct *p, SAMR_Q_SET_DOMAIN_INFO *q_u, SAMR_R_SET_DOMAIN_INFO *r_u)
+{
+       time_t u_expire, u_min_age;
+       time_t u_logout;
+       time_t u_lock_duration, u_reset_time;
+
+       r_u->status = NT_STATUS_OK;
+
+       DEBUG(5,("_samr_set_dom_info: %d\n", __LINE__));
+
+       /* find the policy handle.  open a policy on it. */
+       if (!find_policy_by_hnd(p, &q_u->domain_pol, NULL))
+               return NT_STATUS_INVALID_HANDLE;
+
+       DEBUG(5,("_samr_set_dom_info: switch_value: %d\n", q_u->switch_value));
+
+       switch (q_u->switch_value) {
+               case 0x01:
+                       u_expire=nt_time_to_unix_abs(&q_u->ctr->info.inf1.expire);
+                       u_min_age=nt_time_to_unix_abs(&q_u->ctr->info.inf1.min_passwordage);
+                       
+                       pdb_set_account_policy(AP_MIN_PASSWORD_LEN, (uint32)q_u->ctr->info.inf1.min_length_password);
+                       pdb_set_account_policy(AP_PASSWORD_HISTORY, (uint32)q_u->ctr->info.inf1.password_history);
+                       pdb_set_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, (uint32)q_u->ctr->info.inf1.password_properties);
+                       pdb_set_account_policy(AP_MAX_PASSWORD_AGE, (int)u_expire);
+                       pdb_set_account_policy(AP_MIN_PASSWORD_AGE, (int)u_min_age);
+                       break;
+               case 0x02:
+                       break;
+               case 0x03:
+                       u_logout=nt_time_to_unix_abs(&q_u->ctr->info.inf3.logout);
+                       pdb_set_account_policy(AP_TIME_TO_LOGOUT, (int)u_logout);
+                       break;
+               case 0x05:
+                       break;
+               case 0x06:
+                       break;
+               case 0x07:
+                       break;
+               case 0x0c:
+                       u_lock_duration=nt_time_to_unix_abs(&q_u->ctr->info.inf12.duration);
+                       if (u_lock_duration != -1)
+                               u_lock_duration /= 60;
+
+                       u_reset_time=nt_time_to_unix_abs(&q_u->ctr->info.inf12.reset_count)/60;
+                       
+                       pdb_set_account_policy(AP_LOCK_ACCOUNT_DURATION, (int)u_lock_duration);
+                       pdb_set_account_policy(AP_RESET_COUNT_TIME, (int)u_reset_time);
+                       pdb_set_account_policy(AP_BAD_ATTEMPT_LOCKOUT, (uint32)q_u->ctr->info.inf12.bad_attempt_lockout);
+                       break;
+               default:
+                       return NT_STATUS_INVALID_INFO_CLASS;
+       }
+
+       init_samr_r_set_domain_info(r_u, NT_STATUS_OK);
+
+       DEBUG(5,("_samr_set_dom_info: %d\n", __LINE__));
+
+       return r_u->status;
+}