s3: Lift the server_messaging_context from print_queue_length
[amitay/samba.git] / source3 / rpc_server / srv_spoolss_nt.c
index b62a7c0e68c7255bedd1a84134ef2d523270f4fc..aaa88f584d75e8648c9312ff006d7296a5a426cc 100644 (file)
@@ -38,6 +38,8 @@
 #include "registry.h"
 #include "registry/reg_objects.h"
 #include "include/printing.h"
+#include "secrets.h"
+#include "../librpc/gen_ndr/netlogon.h"
 
 /* macros stolen from s4 spoolss server */
 #define SPOOLSS_BUFFER_UNION(fn,info,level) \
@@ -157,7 +159,9 @@ static int nt_printq_status(int v)
  Disconnect from the client
 ****************************************************************************/
 
-static void srv_spoolss_replycloseprinter(int snum, struct policy_handle *handle)
+static void srv_spoolss_replycloseprinter(
+       int snum, struct policy_handle *handle,
+       struct messaging_context *msg_ctx)
 {
        WERROR result;
        NTSTATUS status;
@@ -170,7 +174,7 @@ static void srv_spoolss_replycloseprinter(int snum, struct policy_handle *handle
        if (!print_notify_deregister_pid(snum))
                DEBUG(0,("print_notify_register_pid: Failed to register our pid for printer %s\n", lp_const_servicename(snum) ));
 
-       /* weird if the test succeds !!! */
+       /* weird if the test succeeds !!! */
        if (smb_connections==0) {
                DEBUG(0,("srv_spoolss_replycloseprinter:Trying to close non-existant notify backchannel !\n"));
                return;
@@ -187,17 +191,24 @@ static void srv_spoolss_replycloseprinter(int snum, struct policy_handle *handle
        if (smb_connections==1) {
 
                cli_shutdown( rpc_pipe_np_smb_conn(notify_cli_pipe) );
-               notify_cli_pipe = NULL; /* The above call shuts downn the pipe also. */
+               /*
+                * The above call shuts down the pipe also.
+                */
+               notify_cli_pipe = NULL;
 
-               messaging_deregister(smbd_messaging_context(),
-                                    MSG_PRINTER_NOTIFY2, NULL);
+               if (msg_ctx != NULL) {
+                       messaging_deregister(msg_ctx, MSG_PRINTER_NOTIFY2,
+                                            NULL);
 
-               /* Tell the connections db we're no longer interested in
-                * printer notify messages. */
+                       /*
+                        * Tell the serverid.tdb we're no longer
+                        * interested in printer notify messages.
+                        */
 
-               serverid_register_msg_flags(
-                       messaging_server_id(smbd_messaging_context()),
-                       false, FLAG_MSG_PRINT_NOTIFY);
+                       serverid_register_msg_flags(
+                               messaging_server_id(msg_ctx),
+                               false, FLAG_MSG_PRINT_NOTIFY);
+               }
        }
 
        smb_connections--;
@@ -214,12 +225,15 @@ static int printer_entry_destructor(Printer_entry *Printer)
 
                if ( Printer->printer_type == SPLHND_SERVER) {
                        snum = -1;
-                       srv_spoolss_replycloseprinter(snum, &Printer->notify.client_hnd);
+                       srv_spoolss_replycloseprinter(
+                               snum, &Printer->notify.client_hnd,
+                               Printer->notify.msg_ctx);
                } else if (Printer->printer_type == SPLHND_PRINTER) {
                        snum = print_queue_snum(Printer->sharename);
                        if (snum != -1)
-                               srv_spoolss_replycloseprinter(snum,
-                                               &Printer->notify.client_hnd);
+                               srv_spoolss_replycloseprinter(
+                                       snum, &Printer->notify.client_hnd,
+                                       Printer->notify.msg_ctx);
                }
        }
 
@@ -277,7 +291,9 @@ static bool close_printer_handle(struct pipes_struct *p, struct policy_handle *h
  Delete a printer given a handle.
 ****************************************************************************/
 
-static WERROR delete_printer_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token, const char *sharename)
+static WERROR delete_printer_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token,
+                                 const char *sharename,
+                                 struct messaging_context *msg_ctx)
 {
        char *cmd = lp_deleteprinter_cmd();
        char *command = NULL;
@@ -308,8 +324,7 @@ static WERROR delete_printer_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token, const c
 
        if ( (ret = smbrun(command, NULL)) == 0 ) {
                /* Tell everyone we updated smb.conf. */
-               message_send_all(smbd_messaging_context(),
-                                MSG_SMB_CONF_UPDATED, NULL, 0, NULL);
+               message_send_all(msg_ctx, MSG_SMB_CONF_UPDATED, NULL, 0, NULL);
        }
 
        if ( is_print_op )
@@ -326,7 +341,7 @@ static WERROR delete_printer_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token, const c
 
        /* go ahead and re-read the services immediately */
        become_root();
-       reload_services(false);
+       reload_services(msg_ctx, false);
        unbecome_root();
 
        if ( lp_servicenumber( sharename )  > 0 )
@@ -366,14 +381,14 @@ static WERROR delete_printer_handle(struct pipes_struct *p, struct policy_handle
           done on the handle already */
 
        result = winreg_delete_printer_key(p->mem_ctx, p->server_info,
-                                          Printer->sharename, "");
+                                          p->msg_ctx, Printer->sharename, "");
        if (!W_ERROR_IS_OK(result)) {
                DEBUG(3,("Error deleting printer %s\n", Printer->sharename));
                return WERR_BADFID;
        }
 
        return delete_printer_hook(p->mem_ctx, p->server_info->ptok,
-                                  Printer->sharename );
+                                  Printer->sharename, p->msg_ctx);
 }
 
 /****************************************************************************
@@ -440,6 +455,7 @@ static bool set_printer_hnd_printertype(Printer_entry *Printer, const char *hand
 
 static bool set_printer_hnd_name(TALLOC_CTX *mem_ctx,
                                 struct auth_serversupplied_info *server_info,
+                                struct messaging_context *msg_ctx,
                                 Printer_entry *Printer,
                                 const char *handlename)
 {
@@ -447,7 +463,7 @@ static bool set_printer_hnd_name(TALLOC_CTX *mem_ctx,
        int n_services=lp_numservices();
        char *aprinter;
        const char *printername;
-       const char *servername;
+       const char *servername = NULL;
        fstring sname;
        bool found = false;
        struct spoolss_PrinterInfo2 *info2 = NULL;
@@ -524,6 +540,7 @@ static bool set_printer_hnd_name(TALLOC_CTX *mem_ctx,
 
                result = winreg_get_printer(mem_ctx,
                                            server_info,
+                                           msg_ctx,
                                            servername,
                                            sname,
                                            &info2);
@@ -594,7 +611,8 @@ static bool open_printer_hnd(struct pipes_struct *p, struct policy_handle *hnd,
                return false;
        }
 
-       if (!set_printer_hnd_name(p->mem_ctx, p->server_info, new_printer, name)) {
+       if (!set_printer_hnd_name(p->mem_ctx, p->server_info, p->msg_ctx,
+                                 new_printer, name)) {
                close_printer_handle(p, hnd);
                return false;
        }
@@ -1264,7 +1282,8 @@ static void receive_notify2_message_list(struct messaging_context *msg,
  driver
  ********************************************************************/
 
-static bool srv_spoolss_drv_upgrade_printer(const char *drivername)
+static bool srv_spoolss_drv_upgrade_printer(const char *drivername,
+                                           struct messaging_context *msg_ctx)
 {
        int len = strlen(drivername);
 
@@ -1274,8 +1293,7 @@ static bool srv_spoolss_drv_upgrade_printer(const char *drivername)
        DEBUG(10,("srv_spoolss_drv_upgrade_printer: Sending message about driver upgrade [%s]\n",
                drivername));
 
-       messaging_send_buf(smbd_messaging_context(),
-                          messaging_server_id(smbd_messaging_context()),
+       messaging_send_buf(msg_ctx, messaging_server_id(msg_ctx),
                           MSG_PRINTER_DRVUPGRADE,
                           (uint8_t *)drivername, len+1);
 
@@ -1330,7 +1348,8 @@ void do_drv_upgrade_printer(struct messaging_context *msg,
                        continue;
                }
 
-               result = winreg_get_printer(tmp_ctx, server_info, NULL,
+               result = winreg_get_printer(tmp_ctx, server_info, msg,
+                                           NULL,
                                            lp_const_servicename(snum),
                                            &pinfo2);
 
@@ -1351,6 +1370,7 @@ void do_drv_upgrade_printer(struct messaging_context *msg,
                /* all we care about currently is the change_id */
                result = winreg_printer_update_changeid(tmp_ctx,
                                                        server_info,
+                                                       msg,
                                                        pinfo2->printername);
 
                if (!W_ERROR_IS_OK(result)) {
@@ -1630,7 +1650,7 @@ WERROR _spoolss_OpenPrinterEx(struct pipes_struct *p,
 
                if (!user_ok_token(uidtoname(p->server_info->utok.uid), NULL,
                                   p->server_info->ptok, snum) ||
-                   !print_access_check(p->server_info, snum,
+                   !print_access_check(p->server_info, p->msg_ctx, snum,
                                        r->in.access_mask)) {
                        DEBUG(3, ("access DENIED for printer open\n"));
                        close_printer_handle(p, r->out.handle);
@@ -1655,6 +1675,7 @@ WERROR _spoolss_OpenPrinterEx(struct pipes_struct *p,
 
                winreg_create_printer(p->mem_ctx,
                                      p->server_info,
+                                     p->msg_ctx,
                                      Printer->servername,
                                      lp_const_servicename(snum));
 
@@ -1746,6 +1767,7 @@ WERROR _spoolss_DeletePrinter(struct pipes_struct *p,
        if (get_printer_snum(p, r->in.handle, &snum, NULL)) {
                winreg_delete_printer_key(p->mem_ctx,
                                          p->server_info,
+                                         p->msg_ctx,
                                          lp_const_servicename(snum),
                                          "");
        }
@@ -1819,7 +1841,7 @@ WERROR _spoolss_DeletePrinterDriver(struct pipes_struct *p,
        if ((version = get_version_id(r->in.architecture)) == -1)
                return WERR_INVALID_ENVIRONMENT;
 
-       status = winreg_get_driver(p->mem_ctx, p->server_info,
+       status = winreg_get_driver(p->mem_ctx, p->server_info, p->msg_ctx,
                                   r->in.architecture, r->in.driver,
                                   version, &info);
        if (!W_ERROR_IS_OK(status)) {
@@ -1829,6 +1851,7 @@ WERROR _spoolss_DeletePrinterDriver(struct pipes_struct *p,
                        version = 3;
 
                        status = winreg_get_driver(p->mem_ctx, p->server_info,
+                                                  p->msg_ctx,
                                                   r->in.architecture,
                                                   r->in.driver,
                                                   version, &info);
@@ -1845,13 +1868,15 @@ WERROR _spoolss_DeletePrinterDriver(struct pipes_struct *p,
 
        }
 
-       if (printer_driver_in_use(p->mem_ctx, p->server_info, info)) {
+       if (printer_driver_in_use(p->mem_ctx, p->server_info, p->msg_ctx,
+                                 info)) {
                status = WERR_PRINTER_DRIVER_IN_USE;
                goto done;
        }
 
        if (version == 2) {
                status = winreg_get_driver(p->mem_ctx, p->server_info,
+                                          p->msg_ctx,
                                           r->in.architecture,
                                           r->in.driver, 3, &info_win2k);
                if (W_ERROR_IS_OK(status)) {
@@ -1860,6 +1885,7 @@ WERROR _spoolss_DeletePrinterDriver(struct pipes_struct *p,
 
                        status = winreg_del_driver(p->mem_ctx,
                                                   p->server_info,
+                                                  p->msg_ctx,
                                                   info_win2k, 3);
                        talloc_free(info_win2k);
 
@@ -1870,7 +1896,8 @@ WERROR _spoolss_DeletePrinterDriver(struct pipes_struct *p,
                }
        }
 
-       status = winreg_del_driver(p->mem_ctx, p->server_info, info, version);
+       status = winreg_del_driver(p->mem_ctx, p->server_info, p->msg_ctx,
+                                  info, version);
 
 done:
        talloc_free(info);
@@ -1916,8 +1943,8 @@ WERROR _spoolss_DeletePrinterDriverEx(struct pipes_struct *p,
                version = r->in.version;
 
        status = winreg_get_driver(p->mem_ctx, p->server_info,
-                                  r->in.architecture, r->in.driver,
-                                  version, &info);
+                                  p->msg_ctx, r->in.architecture,
+                                  r->in.driver, version, &info);
        if (!W_ERROR_IS_OK(status)) {
                status = WERR_UNKNOWN_PRINTER_DRIVER;
 
@@ -1933,7 +1960,7 @@ WERROR _spoolss_DeletePrinterDriverEx(struct pipes_struct *p,
                /* try for Win2k driver if "Windows NT x86" */
 
                version = 3;
-               status = winreg_get_driver(info, p->server_info,
+               status = winreg_get_driver(info, p->server_info, p->msg_ctx,
                                           r->in.architecture,
                                           r->in.driver,
                                           version, &info);
@@ -1943,7 +1970,7 @@ WERROR _spoolss_DeletePrinterDriverEx(struct pipes_struct *p,
                }
        }
 
-       if (printer_driver_in_use(info, p->server_info, info)) {
+       if (printer_driver_in_use(info, p->server_info, p->msg_ctx, info)) {
                status = WERR_PRINTER_DRIVER_IN_USE;
                goto done;
        }
@@ -1966,7 +1993,8 @@ WERROR _spoolss_DeletePrinterDriverEx(struct pipes_struct *p,
 
        if (delete_files &&
            (r->in.delete_flags & DPD_DELETE_ALL_FILES) &&
-           printer_driver_files_in_use(info, p->server_info, info)) {
+           printer_driver_files_in_use(info, p->server_info, p->msg_ctx,
+                                       info)) {
                /* no idea of the correct error here */
                status = WERR_ACCESS_DENIED;
                goto done;
@@ -1976,7 +2004,7 @@ WERROR _spoolss_DeletePrinterDriverEx(struct pipes_struct *p,
        /* also check for W32X86/3 if necessary; maybe we already have? */
 
        if ( (version == 2) && ((r->in.delete_flags & DPD_DELETE_SPECIFIC_VERSION) != DPD_DELETE_SPECIFIC_VERSION)  ) {
-               status = winreg_get_driver(info, p->server_info,
+               status = winreg_get_driver(info, p->server_info, p->msg_ctx,
                                           r->in.architecture,
                                           r->in.driver, 3, &info_win2k);
                if (W_ERROR_IS_OK(status)) {
@@ -1984,6 +2012,7 @@ WERROR _spoolss_DeletePrinterDriverEx(struct pipes_struct *p,
                        if (delete_files &&
                            (r->in.delete_flags & DPD_DELETE_ALL_FILES) &&
                            printer_driver_files_in_use(info, p->server_info,
+                                                       p->msg_ctx,
                                                        info_win2k)) {
                                /* no idea of the correct error here */
                                talloc_free(info_win2k);
@@ -1995,7 +2024,7 @@ WERROR _spoolss_DeletePrinterDriverEx(struct pipes_struct *p,
                        /* remove the Win2k driver first*/
 
                        status = winreg_del_driver(info, p->server_info,
-                                                  info_win2k, 3);
+                                                  p->msg_ctx, info_win2k, 3);
 
                        /* this should not have failed---if it did, report to client */
 
@@ -2015,7 +2044,8 @@ WERROR _spoolss_DeletePrinterDriverEx(struct pipes_struct *p,
                }
        }
 
-       status = winreg_del_driver(info, p->server_info, info, version);
+       status = winreg_del_driver(info, p->server_info, p->msg_ctx, info,
+                                  version);
        if (!W_ERROR_IS_OK(status)) {
                goto done;
        }
@@ -2222,7 +2252,7 @@ static bool spoolss_connect_to_client(struct rpc_pipe_client **pp_pipe,
                        addr));
        }
 
-       if (ismyaddr((struct sockaddr *)&rm_addr)) {
+       if (ismyaddr((struct sockaddr *)(void *)&rm_addr)) {
                DEBUG(0,("spoolss_connect_to_client: Machine %s is one of our addresses. Cannot add to ourselves.\n",
                        addr));
                return false;
@@ -2271,7 +2301,8 @@ static bool spoolss_connect_to_client(struct rpc_pipe_client **pp_pipe,
 static bool srv_spoolss_replyopenprinter(int snum, const char *printer,
                                        uint32_t localprinter, uint32_t type,
                                        struct policy_handle *handle,
-                                       struct sockaddr_storage *client_ss)
+                                       struct sockaddr_storage *client_ss,
+                                       struct messaging_context *msg_ctx)
 {
        WERROR result;
        NTSTATUS status;
@@ -2288,14 +2319,12 @@ static bool srv_spoolss_replyopenprinter(int snum, const char *printer,
                if ( !spoolss_connect_to_client( &notify_cli_pipe, client_ss, unix_printer ))
                        return false;
 
-               messaging_register(smbd_messaging_context(), NULL,
-                                  MSG_PRINTER_NOTIFY2,
+               messaging_register(msg_ctx, NULL, MSG_PRINTER_NOTIFY2,
                                   receive_notify2_message_list);
                /* Tell the connections db we're now interested in printer
                 * notify messages. */
-               serverid_register_msg_flags(
-                       messaging_server_id(smbd_messaging_context()),
-                       true, FLAG_MSG_PRINT_NOTIFY);
+               serverid_register_msg_flags(messaging_server_id(msg_ctx),
+                                           true, FLAG_MSG_PRINT_NOTIFY);
        }
 
        /*
@@ -2405,6 +2434,7 @@ WERROR _spoolss_RemoteFindFirstPrinterChangeNotifyEx(struct pipes_struct *p,
        Printer->notify.flags           = r->in.flags;
        Printer->notify.options         = r->in.options;
        Printer->notify.printerlocal    = r->in.printer_local;
+       Printer->notify.msg_ctx         = p->msg_ctx;
 
        TALLOC_FREE(Printer->notify.option);
        Printer->notify.option = dup_spoolss_NotifyOption(Printer, option);
@@ -2429,7 +2459,8 @@ WERROR _spoolss_RemoteFindFirstPrinterChangeNotifyEx(struct pipes_struct *p,
 
        if(!srv_spoolss_replyopenprinter(snum, Printer->notify.localmachine,
                                        Printer->notify.printerlocal, 1,
-                                       &Printer->notify.client_hnd, &client_ss))
+                                       &Printer->notify.client_hnd,
+                                       &client_ss, p->msg_ctx))
                return WERR_SERVER_UNAVAILABLE;
 
        Printer->notify.client_connected = true;
@@ -2710,7 +2741,7 @@ static void spoolss_notify_status(int snum,
 {
        print_status_struct status;
 
-       print_queue_length(snum, &status);
+       print_queue_length(server_messaging_context(), snum, &status);
        SETUP_SPOOLSS_NOTIFY_DATA_INTEGER(data, status.status);
 }
 
@@ -2724,7 +2755,9 @@ static void spoolss_notify_cjobs(int snum,
                                 struct spoolss_PrinterInfo2 *pinfo2,
                                 TALLOC_CTX *mem_ctx)
 {
-       SETUP_SPOOLSS_NOTIFY_DATA_INTEGER(data, print_queue_length(snum, NULL));
+       SETUP_SPOOLSS_NOTIFY_DATA_INTEGER(
+               data, print_queue_length(server_messaging_context(), snum,
+                                        NULL));
 }
 
 /*******************************************************************
@@ -3215,6 +3248,7 @@ static WERROR printserver_notify_info(struct pipes_struct *p,
 
                        /* Maybe we should use the SYSTEM server_info here... */
                        result = winreg_get_printer(mem_ctx, p->server_info,
+                                                   p->msg_ctx,
                                                    Printer->servername,
                                                    lp_servicename(snum),
                                                    &pinfo2);
@@ -3298,7 +3332,7 @@ static WERROR printer_notify_info(struct pipes_struct *p,
        get_printer_snum(p, hnd, &snum, NULL);
 
        /* Maybe we should use the SYSTEM server_info here... */
-       result = winreg_get_printer(mem_ctx, p->server_info,
+       result = winreg_get_printer(mem_ctx, p->server_info, p->msg_ctx,
                                    Printer->servername,
                                    lp_servicename(snum), &pinfo2);
        if (!W_ERROR_IS_OK(result)) {
@@ -3430,6 +3464,7 @@ done:
 
 static WERROR construct_printer_info0(TALLOC_CTX *mem_ctx,
                                      struct auth_serversupplied_info *server_info,
+                                     struct messaging_context *msg_ctx,
                                      struct spoolss_PrinterInfo2 *info2,
                                      struct spoolss_PrinterInfo0 *r,
                                      int snum)
@@ -3445,7 +3480,7 @@ static WERROR construct_printer_info0(TALLOC_CTX *mem_ctx,
        r->servername           = talloc_strdup(mem_ctx, info2->servername);
        W_ERROR_HAVE_NO_MEMORY(r->servername);
 
-       count = print_queue_length(snum, &status);
+       count = print_queue_length(msg_ctx, snum, &status);
 
        /* check if we already have a counter for this printer */
        for (session_counter = counter_list; session_counter; session_counter = session_counter->next) {
@@ -3492,7 +3527,11 @@ static WERROR construct_printer_info0(TALLOC_CTX *mem_ctx,
        r->number_of_processors         = 0x1;
        r->processor_type               = PROCESSOR_INTEL_PENTIUM; /* 586 Pentium ? */
        r->high_part_total_bytes        = 0x0;
-       winreg_printer_get_changeid(mem_ctx, server_info, info2->sharename, &r->change_id); /* ChangeID in milliseconds*/
+
+       /* ChangeID in milliseconds*/
+       winreg_printer_get_changeid(mem_ctx, server_info, msg_ctx,
+                                   info2->sharename, &r->change_id);
+
        r->last_error                   = WERR_OK;
        r->status                       = nt_printq_status(status.status);
        r->enumerate_network_printers   = 0x0;
@@ -3552,7 +3591,7 @@ static WERROR construct_printer_info2(TALLOC_CTX *mem_ctx,
        int count;
        print_status_struct status;
 
-       count = print_queue_length(snum, &status);
+       count = print_queue_length(server_messaging_context(), snum, &status);
 
        r->servername           = talloc_strdup(mem_ctx, info2->servername);
        W_ERROR_HAVE_NO_MEMORY(r->servername);
@@ -3690,7 +3729,7 @@ static WERROR construct_printer_info6(TALLOC_CTX *mem_ctx,
        int count;
        print_status_struct status;
 
-       count = print_queue_length(snum, &status);
+       count = print_queue_length(server_messaging_context(), snum, &status);
 
        r->status = nt_printq_status(status.status);
 
@@ -3703,6 +3742,7 @@ static WERROR construct_printer_info6(TALLOC_CTX *mem_ctx,
  ********************************************************************/
 
 static WERROR construct_printer_info7(TALLOC_CTX *mem_ctx,
+                                     struct messaging_context *msg_ctx,
                                      Printer_entry *print_hnd,
                                      struct spoolss_PrinterInfo7 *r,
                                      int snum)
@@ -3718,7 +3758,8 @@ static WERROR construct_printer_info7(TALLOC_CTX *mem_ctx,
                return WERR_NOMEM;
        }
 
-       if (is_printer_published(mem_ctx, server_info, print_hnd->servername,
+       if (is_printer_published(mem_ctx, server_info, msg_ctx,
+                                print_hnd->servername,
                                 lp_servicename(snum), &guid, NULL)) {
                r->guid = talloc_strdup_upper(mem_ctx, GUID_string2(mem_ctx, &guid));
                r->action = DSPRINT_PUBLISH;
@@ -3765,6 +3806,7 @@ static bool snum_is_shared_printer(int snum)
 
 static WERROR enum_all_printers_info_level(TALLOC_CTX *mem_ctx,
                                           struct auth_serversupplied_info *server_info,
+                                          struct messaging_context *msg_ctx,
                                           uint32_t level,
                                           uint32_t flags,
                                           union spoolss_PrinterInfo **info_p,
@@ -3795,6 +3837,7 @@ static WERROR enum_all_printers_info_level(TALLOC_CTX *mem_ctx,
 
                result = winreg_create_printer(mem_ctx,
                                               server_info,
+                                              msg_ctx,
                                               NULL,
                                               printer);
                if (!W_ERROR_IS_OK(result)) {
@@ -3809,7 +3852,7 @@ static WERROR enum_all_printers_info_level(TALLOC_CTX *mem_ctx,
                        goto out;
                }
 
-               result = winreg_get_printer(mem_ctx, server_info,
+               result = winreg_get_printer(mem_ctx, server_info, msg_ctx,
                                            NULL, printer, &info2);
                if (!W_ERROR_IS_OK(result)) {
                        goto out;
@@ -3817,7 +3860,8 @@ static WERROR enum_all_printers_info_level(TALLOC_CTX *mem_ctx,
 
                switch (level) {
                case 0:
-                       result = construct_printer_info0(info, server_info, info2,
+                       result = construct_printer_info0(info, server_info,
+                                                        msg_ctx, info2,
                                                         &info[count].info0, snum);
                        break;
                case 1:
@@ -3869,6 +3913,7 @@ static WERROR enum_all_printers_info_level(TALLOC_CTX *mem_ctx,
 
 static WERROR enumprinters_level0(TALLOC_CTX *mem_ctx,
                                  struct auth_serversupplied_info *server_info,
+                                 struct messaging_context *msg_ctx,
                                  uint32_t flags,
                                  const char *servername,
                                  union spoolss_PrinterInfo **info,
@@ -3876,7 +3921,8 @@ static WERROR enumprinters_level0(TALLOC_CTX *mem_ctx,
 {
        DEBUG(4,("enum_all_printers_info_0\n"));
 
-       return enum_all_printers_info_level(mem_ctx, server_info, 0, flags, info, count);
+       return enum_all_printers_info_level(mem_ctx, server_info, msg_ctx,
+                                           0, flags, info, count);
 }
 
 
@@ -3885,13 +3931,15 @@ static WERROR enumprinters_level0(TALLOC_CTX *mem_ctx,
 
 static WERROR enum_all_printers_info_1(TALLOC_CTX *mem_ctx,
                                       struct auth_serversupplied_info *server_info,
+                                      struct messaging_context *msg_ctx,
                                       uint32_t flags,
                                       union spoolss_PrinterInfo **info,
                                       uint32_t *count)
 {
        DEBUG(4,("enum_all_printers_info_1\n"));
 
-       return enum_all_printers_info_level(mem_ctx, server_info, 1, flags, info, count);
+       return enum_all_printers_info_level(mem_ctx, server_info, msg_ctx,
+                                           1, flags, info, count);
 }
 
 /********************************************************************
@@ -3900,12 +3948,14 @@ static WERROR enum_all_printers_info_1(TALLOC_CTX *mem_ctx,
 
 static WERROR enum_all_printers_info_1_local(TALLOC_CTX *mem_ctx,
                                             struct auth_serversupplied_info *server_info,
+                                            struct messaging_context *msg_ctx,
                                             union spoolss_PrinterInfo **info,
                                             uint32_t *count)
 {
        DEBUG(4,("enum_all_printers_info_1_local\n"));
 
-       return enum_all_printers_info_1(mem_ctx, server_info, PRINTER_ENUM_ICON8, info, count);
+       return enum_all_printers_info_1(mem_ctx, server_info, msg_ctx,
+                                       PRINTER_ENUM_ICON8, info, count);
 }
 
 /********************************************************************
@@ -3914,6 +3964,7 @@ static WERROR enum_all_printers_info_1_local(TALLOC_CTX *mem_ctx,
 
 static WERROR enum_all_printers_info_1_name(TALLOC_CTX *mem_ctx,
                                            struct auth_serversupplied_info *server_info,
+                                           struct messaging_context *msg_ctx,
                                            const char *name,
                                            union spoolss_PrinterInfo **info,
                                            uint32_t *count)
@@ -3930,7 +3981,8 @@ static WERROR enum_all_printers_info_1_name(TALLOC_CTX *mem_ctx,
                return WERR_INVALID_NAME;
        }
 
-       return enum_all_printers_info_1(mem_ctx, server_info, PRINTER_ENUM_ICON8, info, count);
+       return enum_all_printers_info_1(mem_ctx, server_info, msg_ctx,
+                                       PRINTER_ENUM_ICON8, info, count);
 }
 
 /********************************************************************
@@ -3939,6 +3991,7 @@ static WERROR enum_all_printers_info_1_name(TALLOC_CTX *mem_ctx,
 
 static WERROR enum_all_printers_info_1_network(TALLOC_CTX *mem_ctx,
                                               struct auth_serversupplied_info *server_info,
+                                              struct messaging_context *msg_ctx,
                                               const char *name,
                                               union spoolss_PrinterInfo **info,
                                               uint32_t *count)
@@ -3963,7 +4016,8 @@ static WERROR enum_all_printers_info_1_network(TALLOC_CTX *mem_ctx,
                 return WERR_CAN_NOT_COMPLETE;
        }
 
-       return enum_all_printers_info_1(mem_ctx, server_info, PRINTER_ENUM_NAME, info, count);
+       return enum_all_printers_info_1(mem_ctx, server_info, msg_ctx,
+                                       PRINTER_ENUM_NAME, info, count);
 }
 
 /********************************************************************
@@ -3974,12 +4028,14 @@ static WERROR enum_all_printers_info_1_network(TALLOC_CTX *mem_ctx,
 
 static WERROR enum_all_printers_info_2(TALLOC_CTX *mem_ctx,
                                       struct auth_serversupplied_info *server_info,
+                                      struct messaging_context *msg_ctx,
                                       union spoolss_PrinterInfo **info,
                                       uint32_t *count)
 {
        DEBUG(4,("enum_all_printers_info_2\n"));
 
-       return enum_all_printers_info_level(mem_ctx, server_info, 2, 0, info, count);
+       return enum_all_printers_info_level(mem_ctx, server_info, msg_ctx,
+                                           2, 0, info, count);
 }
 
 /********************************************************************
@@ -3988,6 +4044,7 @@ static WERROR enum_all_printers_info_2(TALLOC_CTX *mem_ctx,
 
 static WERROR enumprinters_level1(TALLOC_CTX *mem_ctx,
                                  struct auth_serversupplied_info *server_info,
+                                 struct messaging_context *msg_ctx,
                                  uint32_t flags,
                                  const char *name,
                                  union spoolss_PrinterInfo **info,
@@ -3996,15 +4053,20 @@ static WERROR enumprinters_level1(TALLOC_CTX *mem_ctx,
        /* Not all the flags are equals */
 
        if (flags & PRINTER_ENUM_LOCAL) {
-               return enum_all_printers_info_1_local(mem_ctx, server_info, info, count);
+               return enum_all_printers_info_1_local(mem_ctx, server_info,
+                                                     msg_ctx, info, count);
        }
 
        if (flags & PRINTER_ENUM_NAME) {
-               return enum_all_printers_info_1_name(mem_ctx, server_info, name, info, count);
+               return enum_all_printers_info_1_name(mem_ctx, server_info,
+                                                    msg_ctx, name, info,
+                                                    count);
        }
 
        if (flags & PRINTER_ENUM_NETWORK) {
-               return enum_all_printers_info_1_network(mem_ctx, server_info, name, info, count);
+               return enum_all_printers_info_1_network(mem_ctx, server_info,
+                                                       msg_ctx, name, info,
+                                                       count);
        }
 
        return WERR_OK; /* NT4sp5 does that */
@@ -4016,13 +4078,15 @@ static WERROR enumprinters_level1(TALLOC_CTX *mem_ctx,
 
 static WERROR enumprinters_level2(TALLOC_CTX *mem_ctx,
                                  struct auth_serversupplied_info *server_info,
+                                 struct messaging_context *msg_ctx,
                                  uint32_t flags,
                                  const char *servername,
                                  union spoolss_PrinterInfo **info,
                                  uint32_t *count)
 {
        if (flags & PRINTER_ENUM_LOCAL) {
-               return enum_all_printers_info_2(mem_ctx, server_info, info, count);
+               return enum_all_printers_info_2(mem_ctx, server_info, msg_ctx,
+                                               info, count);
        }
 
        if (flags & PRINTER_ENUM_NAME) {
@@ -4030,7 +4094,8 @@ static WERROR enumprinters_level2(TALLOC_CTX *mem_ctx,
                        return WERR_INVALID_NAME;
                }
 
-               return enum_all_printers_info_2(mem_ctx, server_info, info, count);
+               return enum_all_printers_info_2(mem_ctx, server_info, msg_ctx,
+                                               info, count);
        }
 
        if (flags & PRINTER_ENUM_REMOTE) {
@@ -4046,6 +4111,7 @@ static WERROR enumprinters_level2(TALLOC_CTX *mem_ctx,
 
 static WERROR enumprinters_level4(TALLOC_CTX *mem_ctx,
                                  struct auth_serversupplied_info *server_info,
+                                 struct messaging_context *msg_ctx,
                                  uint32_t flags,
                                  const char *servername,
                                  union spoolss_PrinterInfo **info,
@@ -4053,7 +4119,8 @@ static WERROR enumprinters_level4(TALLOC_CTX *mem_ctx,
 {
        DEBUG(4,("enum_all_printers_info_4\n"));
 
-       return enum_all_printers_info_level(mem_ctx, server_info, 4, flags, info, count);
+       return enum_all_printers_info_level(mem_ctx, server_info, msg_ctx,
+                                           4, flags, info, count);
 }
 
 
@@ -4063,6 +4130,7 @@ static WERROR enumprinters_level4(TALLOC_CTX *mem_ctx,
 
 static WERROR enumprinters_level5(TALLOC_CTX *mem_ctx,
                                  struct auth_serversupplied_info *server_info,
+                                 struct messaging_context *msg_ctx,
                                  uint32_t flags,
                                  const char *servername,
                                  union spoolss_PrinterInfo **info,
@@ -4070,7 +4138,8 @@ static WERROR enumprinters_level5(TALLOC_CTX *mem_ctx,
 {
        DEBUG(4,("enum_all_printers_info_5\n"));
 
-       return enum_all_printers_info_level(mem_ctx, server_info, 5, flags, info, count);
+       return enum_all_printers_info_level(mem_ctx, server_info, msg_ctx,
+                                           5, flags, info, count);
 }
 
 /****************************************************************
@@ -4116,27 +4185,27 @@ WERROR _spoolss_EnumPrinters(struct pipes_struct *p,
        switch (r->in.level) {
        case 0:
                result = enumprinters_level0(p->mem_ctx, p->server_info,
-                                            r->in.flags, name,
+                                            p->msg_ctx, r->in.flags, name,
                                             r->out.info, r->out.count);
                break;
        case 1:
                result = enumprinters_level1(p->mem_ctx, p->server_info,
-                                            r->in.flags, name,
+                                            p->msg_ctx, r->in.flags, name,
                                             r->out.info, r->out.count);
                break;
        case 2:
                result = enumprinters_level2(p->mem_ctx, p->server_info,
-                                            r->in.flags, name,
+                                            p->msg_ctx, r->in.flags, name,
                                             r->out.info, r->out.count);
                break;
        case 4:
                result = enumprinters_level4(p->mem_ctx, p->server_info,
-                                            r->in.flags, name,
+                                            p->msg_ctx, r->in.flags, name,
                                             r->out.info, r->out.count);
                break;
        case 5:
                result = enumprinters_level5(p->mem_ctx, p->server_info,
-                                            r->in.flags, name,
+                                            p->msg_ctx, r->in.flags, name,
                                             r->out.info, r->out.count);
                break;
        default:
@@ -4188,6 +4257,7 @@ WERROR _spoolss_GetPrinter(struct pipes_struct *p,
 
        result = winreg_get_printer(p->mem_ctx,
                                    p->server_info,
+                                   p->msg_ctx,
                                    servername,
                                    lp_const_servicename(snum),
                                    &info2);
@@ -4198,7 +4268,7 @@ WERROR _spoolss_GetPrinter(struct pipes_struct *p,
        switch (r->in.level) {
        case 0:
                result = construct_printer_info0(p->mem_ctx, p->server_info,
-                                                info2,
+                                                p->msg_ctx, info2,
                                                 &r->out.info->info0, snum);
                break;
        case 1:
@@ -4227,7 +4297,8 @@ WERROR _spoolss_GetPrinter(struct pipes_struct *p,
                                                 &r->out.info->info6, snum);
                break;
        case 7:
-               result = construct_printer_info7(p->mem_ctx, Printer,
+               result = construct_printer_info7(p->mem_ctx, p->msg_ctx,
+                                                Printer,
                                                 &r->out.info->info7, snum);
                break;
        case 8:
@@ -4935,6 +5006,7 @@ static WERROR fill_printer_driver_info101(TALLOC_CTX *mem_ctx,
 
 static WERROR construct_printer_driver_info_level(TALLOC_CTX *mem_ctx,
                                                  struct auth_serversupplied_info *server_info,
+                                                 struct messaging_context *msg_ctx,
                                                  uint32_t level,
                                                  union spoolss_DriverInfo *r,
                                                  int snum,
@@ -4948,6 +5020,7 @@ static WERROR construct_printer_driver_info_level(TALLOC_CTX *mem_ctx,
 
        result = winreg_get_printer(mem_ctx,
                                    server_info,
+                                   msg_ctx,
                                    servername,
                                    lp_const_servicename(snum),
                                    &pinfo2);
@@ -4959,7 +5032,8 @@ static WERROR construct_printer_driver_info_level(TALLOC_CTX *mem_ctx,
                return WERR_INVALID_PRINTER_NAME;
        }
 
-       result = winreg_get_driver(mem_ctx, server_info, architecture,
+       result = winreg_get_driver(mem_ctx, server_info, msg_ctx,
+                                  architecture,
                                   pinfo2->drivername, version, &driver);
 
        DEBUG(8,("construct_printer_driver_info_level: status: %s\n",
@@ -4977,7 +5051,8 @@ static WERROR construct_printer_driver_info_level(TALLOC_CTX *mem_ctx,
 
                /* Yes - try again with a WinNT driver. */
                version = 2;
-               result = winreg_get_driver(mem_ctx, server_info, architecture,
+               result = winreg_get_driver(mem_ctx, server_info, msg_ctx,
+                                          architecture,
                                           pinfo2->drivername,
                                           version, &driver);
                DEBUG(8,("construct_printer_driver_level: status: %s\n",
@@ -5059,7 +5134,9 @@ WERROR _spoolss_GetPrinterDriver2(struct pipes_struct *p,
                return WERR_BADFID;
        }
 
-       result = construct_printer_driver_info_level(p->mem_ctx, p->server_info,
+       result = construct_printer_driver_info_level(p->mem_ctx,
+                                                    p->server_info,
+                                                    p->msg_ctx,
                                                     r->in.level, r->out.info,
                                                     snum, printer->servername,
                                                     r->in.architecture,
@@ -5174,7 +5251,7 @@ WERROR _spoolss_StartDocPrinter(struct pipes_struct *p,
                return WERR_BADFID;
        }
 
-       werr = print_job_start(p->server_info, snum,
+       werr = print_job_start(p->server_info, p->msg_ctx, snum,
                                info_1->document_name, info_1->output_file,
                                Printer->devmode, &Printer->jobid);
 
@@ -5287,14 +5364,14 @@ static WERROR control_printer(struct policy_handle *handle, uint32_t command,
 
        switch (command) {
        case SPOOLSS_PRINTER_CONTROL_PAUSE:
-               errcode = print_queue_pause(p->server_info, snum);
+               errcode = print_queue_pause(p->server_info, p->msg_ctx, snum);
                break;
        case SPOOLSS_PRINTER_CONTROL_RESUME:
        case SPOOLSS_PRINTER_CONTROL_UNPAUSE:
-               errcode = print_queue_resume(p->server_info, snum);
+               errcode = print_queue_resume(p->server_info, p->msg_ctx, snum);
                break;
        case SPOOLSS_PRINTER_CONTROL_PURGE:
-               errcode = print_queue_purge(p->server_info, snum);
+               errcode = print_queue_purge(p->server_info, p->msg_ctx, snum);
                break;
        default:
                return WERR_UNKNOWN_LEVEL;
@@ -5330,7 +5407,8 @@ WERROR _spoolss_AbortPrinter(struct pipes_struct *p,
                return WERR_SPL_NO_STARTDOC;
        }
 
-       errcode = print_job_delete(p->server_info, snum, Printer->jobid);
+       errcode = print_job_delete(p->server_info, p->msg_ctx, snum,
+                                  Printer->jobid);
 
        return errcode;
 }
@@ -5382,6 +5460,7 @@ static WERROR update_printer_sec(struct policy_handle *handle,
           nothing may have actually changed. */
        result = winreg_get_printer_secdesc(p->mem_ctx,
                                            p->server_info,
+                                           p->msg_ctx,
                                            printer,
                                            &old_secdesc);
        if (!W_ERROR_IS_OK(result)) {
@@ -5433,6 +5512,7 @@ static WERROR update_printer_sec(struct policy_handle *handle,
 
        result = winreg_set_printer_secdesc(p->mem_ctx,
                                            p->server_info,
+                                           p->msg_ctx,
                                            printer,
                                            new_secdesc);
 
@@ -5545,9 +5625,10 @@ static WERROR add_port_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token, const char *p
 /****************************************************************************
 ****************************************************************************/
 
-bool add_printer_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token,
-                     struct spoolss_SetPrinterInfo2 *info2,
-                     const char *remote_machine)
+static bool add_printer_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token,
+                            struct spoolss_SetPrinterInfo2 *info2,
+                            const char *remote_machine,
+                            struct messaging_context *msg_ctx)
 {
        char *cmd = lp_addprinter_cmd();
        char **qlines;
@@ -5583,8 +5664,7 @@ bool add_printer_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token,
 
        if ( (ret = smbrun(command, &fd)) == 0 ) {
                /* Tell everyone we updated smb.conf. */
-               message_send_all(smbd_messaging_context(),
-                                MSG_SMB_CONF_UPDATED, NULL, 0, NULL);
+               message_send_all(msg_ctx, MSG_SMB_CONF_UPDATED, NULL, 0, NULL);
        }
 
        if ( is_print_op )
@@ -5604,7 +5684,7 @@ bool add_printer_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token,
 
        /* reload our services immediately */
        become_root();
-       reload_services(false);
+       reload_services(msg_ctx, false);
        unbecome_root();
 
        numlines = 0;
@@ -5628,6 +5708,7 @@ bool add_printer_hook(TALLOC_CTX *ctx, NT_USER_TOKEN *token,
 
 static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                               struct auth_serversupplied_info *server_info,
+                              struct messaging_context *msg_ctx,
                               int snum,
                               struct spoolss_SetPrinterInfo2 *printer,
                               struct spoolss_PrinterInfo2 *old_printer)
@@ -5644,6 +5725,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                push_reg_sz(mem_ctx, &buffer, printer->drivername);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_DRIVERNAME,
@@ -5663,6 +5745,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                push_reg_sz(mem_ctx, &buffer, printer->comment);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_DESCRIPTION,
@@ -5679,6 +5762,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                push_reg_sz(mem_ctx, &buffer, printer->sharename);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_PRINTSHARENAME,
@@ -5704,6 +5788,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                push_reg_sz(mem_ctx, &buffer, p);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_PRINTERNAME,
@@ -5720,6 +5805,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                push_reg_sz(mem_ctx, &buffer, printer->portname);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_PORTNAME,
@@ -5736,6 +5822,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                push_reg_sz(mem_ctx, &buffer, printer->location);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_LOCATION,
@@ -5752,6 +5839,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                push_reg_sz(mem_ctx, &buffer, printer->sepfile);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_PRINTSEPARATORFILE,
@@ -5769,6 +5857,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                SIVAL(buffer.data, 0, printer->starttime);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_PRINTSTARTTIME,
@@ -5782,6 +5871,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                SIVAL(buffer.data, 0, printer->untiltime);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_PRINTENDTIME,
@@ -5795,6 +5885,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                SIVAL(buffer.data, 0, printer->priority);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_PRIORITY,
@@ -5809,6 +5900,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                                       PRINTER_ATTRIBUTE_KEEPPRINTEDJOBS));
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_PRINTKEEPPRINTEDJOBS,
@@ -5832,6 +5924,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
                push_reg_sz(mem_ctx, &buffer, spooling);
                winreg_set_printer_dataex(mem_ctx,
                                          server_info,
+                                         msg_ctx,
                                          printer->sharename,
                                          SPOOL_DSSPOOLER_KEY,
                                          SPOOL_REG_PRINTSPOOLING,
@@ -5843,6 +5936,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
        push_reg_sz(mem_ctx, &buffer, global_myname());
        winreg_set_printer_dataex(mem_ctx,
                                  server_info,
+                                 msg_ctx,
                                  printer->sharename,
                                  SPOOL_DSSPOOLER_KEY,
                                  SPOOL_REG_SHORTSERVERNAME,
@@ -5864,6 +5958,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
        push_reg_sz(mem_ctx, &buffer, longname);
        winreg_set_printer_dataex(mem_ctx,
                                  server_info,
+                                 msg_ctx,
                                  printer->sharename,
                                  SPOOL_DSSPOOLER_KEY,
                                  SPOOL_REG_SERVERNAME,
@@ -5876,6 +5971,7 @@ static WERROR update_dsspooler(TALLOC_CTX *mem_ctx,
        push_reg_sz(mem_ctx, &buffer, uncname);
        winreg_set_printer_dataex(mem_ctx,
                                  server_info,
+                                 msg_ctx,
                                  printer->sharename,
                                  SPOOL_DSSPOOLER_KEY,
                                  SPOOL_REG_UNCNAME,
@@ -5929,6 +6025,7 @@ static WERROR update_printer(struct pipes_struct *p,
 
        result = winreg_get_printer(tmp_ctx,
                                    p->server_info,
+                                   p->msg_ctx,
                                    servername,
                                    lp_const_servicename(snum),
                                    &old_printer);
@@ -5964,7 +6061,8 @@ static WERROR update_printer(struct pipes_struct *p,
        {
                /* add_printer_hook() will call reload_services() */
                if (!add_printer_hook(tmp_ctx, p->server_info->ptok,
-                                     printer, p->client_address) ) {
+                                     printer, p->client_address,
+                                     p->msg_ctx)) {
                        result = WERR_ACCESS_DENIED;
                        goto done;
                }
@@ -5972,6 +6070,7 @@ static WERROR update_printer(struct pipes_struct *p,
 
        update_dsspooler(tmp_ctx,
                         p->server_info,
+                        p->msg_ctx,
                         snum,
                         printer,
                         old_printer);
@@ -5983,6 +6082,7 @@ static WERROR update_printer(struct pipes_struct *p,
        }
        result = winreg_update_printer(tmp_ctx,
                                       p->server_info,
+                                      p->msg_ctx,
                                       printer->sharename,
                                       printer_mask,
                                       printer,
@@ -6021,14 +6121,15 @@ static WERROR publish_or_unpublish_printer(struct pipes_struct *p,
        if (!get_printer_snum(p, handle, &snum, NULL))
                return WERR_BADFID;
 
-       result = winreg_get_printer(p->mem_ctx, p->server_info,
+       result = winreg_get_printer(p->mem_ctx, p->server_info, p->msg_ctx,
                                    Printer->servername,
                                    lp_servicename(snum), &pinfo2);
        if (!W_ERROR_IS_OK(result)) {
                return WERR_BADFID;
        }
 
-       nt_printer_publish(pinfo2, p->server_info, pinfo2, info7->action);
+       nt_printer_publish(pinfo2, p->server_info, p->msg_ctx, pinfo2,
+                          info7->action);
 
        TALLOC_FREE(pinfo2);
        return WERR_OK;
@@ -6066,6 +6167,7 @@ static WERROR update_printer_devmode(struct pipes_struct *p,
 
        return winreg_update_printer(p->mem_ctx,
                                     p->server_info,
+                                    p->msg_ctx,
                                     lp_const_servicename(snum),
                                     info2_mask,
                                     NULL,
@@ -6143,7 +6245,8 @@ WERROR _spoolss_FindClosePrinterNotify(struct pipes_struct *p,
                                !get_printer_snum(p, r->in.handle, &snum, NULL) )
                        return WERR_BADFID;
 
-               srv_spoolss_replycloseprinter(snum, &Printer->notify.client_hnd);
+               srv_spoolss_replycloseprinter(
+                       snum, &Printer->notify.client_hnd, p->msg_ctx);
        }
 
        Printer->notify.flags=0;
@@ -6477,8 +6580,8 @@ WERROR _spoolss_EnumJobs(struct pipes_struct *p,
                return WERR_BADFID;
        }
 
-       result = winreg_get_printer(p->mem_ctx, p->server_info, NULL,
-                                   lp_servicename(snum), &pinfo2);
+       result = winreg_get_printer(p->mem_ctx, p->server_info, p->msg_ctx,
+                                   NULL, lp_servicename(snum), &pinfo2);
        if (!W_ERROR_IS_OK(result)) {
                return result;
        }
@@ -6584,20 +6687,22 @@ WERROR _spoolss_SetJob(struct pipes_struct *p,
        switch (r->in.command) {
        case SPOOLSS_JOB_CONTROL_CANCEL:
        case SPOOLSS_JOB_CONTROL_DELETE:
-               errcode = print_job_delete(p->server_info,
+               errcode = print_job_delete(p->server_info, p->msg_ctx,
                                           snum, r->in.job_id);
                if (W_ERROR_EQUAL(errcode, WERR_PRINTER_HAS_JOBS_QUEUED)) {
                        errcode = WERR_OK;
                }
                break;
        case SPOOLSS_JOB_CONTROL_PAUSE:
-               if (print_job_pause(p->server_info, snum, r->in.job_id, &errcode)) {
+               if (print_job_pause(p->server_info, p->msg_ctx,
+                                   snum, r->in.job_id, &errcode)) {
                        errcode = WERR_OK;
                }
                break;
        case SPOOLSS_JOB_CONTROL_RESTART:
        case SPOOLSS_JOB_CONTROL_RESUME:
-               if (print_job_resume(p->server_info, snum, r->in.job_id, &errcode)) {
+               if (print_job_resume(p->server_info, p->msg_ctx,
+                                    snum, r->in.job_id, &errcode)) {
                        errcode = WERR_OK;
                }
                break;
@@ -6638,6 +6743,7 @@ WERROR _spoolss_SetJob(struct pipes_struct *p,
 
 static WERROR enumprinterdrivers_level_by_architecture(TALLOC_CTX *mem_ctx,
                                                       struct auth_serversupplied_info *server_info,
+                                                      struct messaging_context *msg_ctx,
                                                       const char *servername,
                                                       const char *architecture,
                                                       uint32_t level,
@@ -6657,7 +6763,7 @@ static WERROR enumprinterdrivers_level_by_architecture(TALLOC_CTX *mem_ctx,
        *info_p = NULL;
 
        for (version=0; version<DRIVER_MAX_VERSION; version++) {
-               result = winreg_get_driver_list(mem_ctx, server_info,
+               result = winreg_get_driver_list(mem_ctx, server_info, msg_ctx,
                                                architecture, version,
                                                &num_drivers, &drivers);
                if (!W_ERROR_IS_OK(result)) {
@@ -6683,6 +6789,7 @@ static WERROR enumprinterdrivers_level_by_architecture(TALLOC_CTX *mem_ctx,
                        DEBUG(5, ("\tdriver: [%s]\n", drivers[i]));
 
                        result = winreg_get_driver(mem_ctx, server_info,
+                                                  msg_ctx,
                                                   architecture, drivers[i],
                                                   version, &driver);
                        if (!W_ERROR_IS_OK(result)) {
@@ -6754,6 +6861,7 @@ static WERROR enumprinterdrivers_level_by_architecture(TALLOC_CTX *mem_ctx,
 
 static WERROR enumprinterdrivers_level(TALLOC_CTX *mem_ctx,
                                       struct auth_serversupplied_info *server_info,
+                                      struct messaging_context *msg_ctx,
                                       const char *servername,
                                       const char *architecture,
                                       uint32_t level,
@@ -6772,6 +6880,7 @@ static WERROR enumprinterdrivers_level(TALLOC_CTX *mem_ctx,
 
                        result = enumprinterdrivers_level_by_architecture(mem_ctx,
                                                                          server_info,
+                                                                         msg_ctx,
                                                                          servername,
                                                                          archi_table[a].long_archi,
                                                                          level,
@@ -6792,6 +6901,7 @@ static WERROR enumprinterdrivers_level(TALLOC_CTX *mem_ctx,
 
        return enumprinterdrivers_level_by_architecture(mem_ctx,
                                                        server_info,
+                                                       msg_ctx,
                                                        servername,
                                                        architecture,
                                                        level,
@@ -6829,6 +6939,7 @@ WERROR _spoolss_EnumPrinterDrivers(struct pipes_struct *p,
 
        result = enumprinterdrivers_level(p->mem_ctx,
                                          p->server_info,
+                                         p->msg_ctx,
                                          cservername,
                                          r->in.environment,
                                          r->in.level,
@@ -6875,6 +6986,7 @@ WERROR _spoolss_EnumForms(struct pipes_struct *p,
        case 1:
                result = winreg_printer_enumforms1(p->mem_ctx,
                                                   p->server_info,
+                                                  p->msg_ctx,
                                                   r->out.count,
                                                   r->out.info);
                break;
@@ -6924,6 +7036,7 @@ WERROR _spoolss_GetForm(struct pipes_struct *p,
        case 1:
                result = winreg_printer_getform1(p->mem_ctx,
                                                 p->server_info,
+                                                p->msg_ctx,
                                                 r->in.form_name,
                                                 &r->out.info->info1);
                break;
@@ -7254,7 +7367,8 @@ static WERROR spoolss_addprinterex_level_2(struct pipes_struct *p,
 
        if (*lp_addprinter_cmd() ) {
                if ( !add_printer_hook(p->mem_ctx, p->server_info->ptok,
-                                      info2, p->client_address) ) {
+                                      info2, p->client_address,
+                                      p->msg_ctx) ) {
                        return WERR_ACCESS_DENIED;
                }
        } else {
@@ -7269,7 +7383,8 @@ static WERROR spoolss_addprinterex_level_2(struct pipes_struct *p,
        }
 
        /* you must be a printer admin to add a new printer */
-       if (!print_access_check(p->server_info, snum, PRINTER_ACCESS_ADMINISTER)) {
+       if (!print_access_check(p->server_info, p->msg_ctx, snum,
+                               PRINTER_ACCESS_ADMINISTER)) {
                return WERR_ACCESS_DENIED;
        }
 
@@ -7287,12 +7402,14 @@ static WERROR spoolss_addprinterex_level_2(struct pipes_struct *p,
 
        update_dsspooler(p->mem_ctx,
                         p->server_info,
+                        p->msg_ctx,
                         0,
                         info2,
                         NULL);
 
        err = winreg_update_printer(p->mem_ctx,
                                    p->server_info,
+                                   p->msg_ctx,
                                    info2->sharename,
                                    info2_mask,
                                    info2,
@@ -7416,7 +7533,7 @@ WERROR _spoolss_AddPrinterDriverEx(struct pipes_struct *p,
                goto done;
        }
 
-       err = winreg_add_driver(p->mem_ctx, p->server_info,
+       err = winreg_add_driver(p->mem_ctx, p->server_info, p->msg_ctx,
                                 r->in.info_ctr, &driver_name, &version);
        if (!W_ERROR_IS_OK(err)) {
                goto done;
@@ -7429,7 +7546,7 @@ WERROR _spoolss_AddPrinterDriverEx(struct pipes_struct *p,
         * to update each printer bound to this driver.   --jerry
         */
 
-       if (!srv_spoolss_drv_upgrade_printer(driver_name)) {
+       if (!srv_spoolss_drv_upgrade_printer(driver_name, p->msg_ctx)) {
                DEBUG(0,("%s: Failed to send message about upgrading driver [%s]!\n",
                        fn, driver_name));
        }
@@ -7854,7 +7971,8 @@ WERROR _spoolss_AddForm(struct pipes_struct *p,
                return WERR_INVALID_PARAM;
        }
 
-       status = winreg_printer_addform1(p->mem_ctx, p->server_info, form);
+       status = winreg_printer_addform1(p->mem_ctx, p->server_info,
+                                        p->msg_ctx, form);
        if (!W_ERROR_IS_OK(status)) {
                return status;
        }
@@ -7869,6 +7987,7 @@ WERROR _spoolss_AddForm(struct pipes_struct *p,
 
                status = winreg_printer_update_changeid(p->mem_ctx,
                                                        p->server_info,
+                                                       p->msg_ctx,
                                                        lp_const_servicename(snum));
                if (!W_ERROR_IS_OK(status)) {
                        return status;
@@ -7912,6 +8031,7 @@ WERROR _spoolss_DeleteForm(struct pipes_struct *p,
 
        status = winreg_printer_deleteform1(p->mem_ctx,
                                            p->server_info,
+                                           p->msg_ctx,
                                            form_name);
        if (!W_ERROR_IS_OK(status)) {
                return status;
@@ -7927,6 +8047,7 @@ WERROR _spoolss_DeleteForm(struct pipes_struct *p,
 
                status = winreg_printer_update_changeid(p->mem_ctx,
                                                        p->server_info,
+                                                       p->msg_ctx,
                                                        lp_const_servicename(snum));
                if (!W_ERROR_IS_OK(status)) {
                        return status;
@@ -7975,6 +8096,7 @@ WERROR _spoolss_SetForm(struct pipes_struct *p,
 
        status = winreg_printer_setform1(p->mem_ctx,
                                         p->server_info,
+                                        p->msg_ctx,
                                         form_name,
                                         form);
        if (!W_ERROR_IS_OK(status)) {
@@ -7991,6 +8113,7 @@ WERROR _spoolss_SetForm(struct pipes_struct *p,
 
                status = winreg_printer_update_changeid(p->mem_ctx,
                                                        p->server_info,
+                                                       p->msg_ctx,
                                                        lp_const_servicename(snum));
                if (!W_ERROR_IS_OK(status)) {
                        return status;
@@ -8473,8 +8596,8 @@ WERROR _spoolss_GetJob(struct pipes_struct *p,
                return WERR_BADFID;
        }
 
-       result = winreg_get_printer(p->mem_ctx, p->server_info, NULL,
-                                   lp_servicename(snum), &pinfo2);
+       result = winreg_get_printer(p->mem_ctx, p->server_info, p->msg_ctx,
+                                   NULL, lp_servicename(snum), &pinfo2);
        if (!W_ERROR_IS_OK(result)) {
                return result;
        }
@@ -8599,6 +8722,7 @@ WERROR _spoolss_GetPrinterDataEx(struct pipes_struct *p,
 
                        result = winreg_printer_get_changeid(p->mem_ctx,
                                                             p->server_info,
+                                                            p->msg_ctx,
                                                             printer,
                                                             &changeid);
                        if (!W_ERROR_IS_OK(result)) {
@@ -8613,6 +8737,7 @@ WERROR _spoolss_GetPrinterDataEx(struct pipes_struct *p,
 
        result = winreg_get_printer_dataex(p->mem_ctx,
                                           p->server_info,
+                                          p->msg_ctx,
                                           printer,
                                           r->in.key_name,
                                           r->in.value_name,
@@ -8685,7 +8810,7 @@ WERROR _spoolss_SetPrinterDataEx(struct pipes_struct *p,
                return WERR_ACCESS_DENIED;
        }
 
-       result = winreg_get_printer(Printer, p->server_info,
+       result = winreg_get_printer(Printer, p->server_info, p->msg_ctx,
                                    Printer->servername,
                                    lp_servicename(snum),
                                    &pinfo2);
@@ -8705,6 +8830,7 @@ WERROR _spoolss_SetPrinterDataEx(struct pipes_struct *p,
 
        result = winreg_set_printer_dataex(p->mem_ctx,
                                           p->server_info,
+                                          p->msg_ctx,
                                           pinfo2->sharename,
                                           r->in.key_name,
                                           r->in.value_name,
@@ -8730,6 +8856,7 @@ WERROR _spoolss_SetPrinterDataEx(struct pipes_struct *p,
                         */
                        winreg_set_printer_dataex(p->mem_ctx,
                                                  p->server_info,
+                                                 p->msg_ctx,
                                                  pinfo2->sharename,
                                                  str,
                                                  r->in.value_name,
@@ -8740,6 +8867,7 @@ WERROR _spoolss_SetPrinterDataEx(struct pipes_struct *p,
 
                result = winreg_printer_update_changeid(p->mem_ctx,
                                                        p->server_info,
+                                                       p->msg_ctx,
                                                        lp_const_servicename(snum));
 
        }
@@ -8787,12 +8915,14 @@ WERROR _spoolss_DeletePrinterDataEx(struct pipes_struct *p,
 
        status = winreg_delete_printer_dataex(p->mem_ctx,
                                              p->server_info,
+                                             p->msg_ctx,
                                              printer,
                                              r->in.key_name,
                                              r->in.value_name);
        if (W_ERROR_IS_OK(status)) {
                status = winreg_printer_update_changeid(p->mem_ctx,
                                                        p->server_info,
+                                                       p->msg_ctx,
                                                        printer);
        }
 
@@ -8827,6 +8957,7 @@ WERROR _spoolss_EnumPrinterKey(struct pipes_struct *p,
 
        result = winreg_enum_printer_key(p->mem_ctx,
                                         p->server_info,
+                                        p->msg_ctx,
                                         lp_const_servicename(snum),
                                         r->in.key_name,
                                         &num_keys,
@@ -8900,11 +9031,13 @@ WERROR _spoolss_DeletePrinterKey(struct pipes_struct *p,
        /* delete the key and all subkeys */
        status = winreg_delete_printer_key(p->mem_ctx,
                                           p->server_info,
+                                          p->msg_ctx,
                                           printer,
                                           r->in.key_name);
        if (W_ERROR_IS_OK(status)) {
                status = winreg_printer_update_changeid(p->mem_ctx,
                                                        p->server_info,
+                                                       p->msg_ctx,
                                                        printer);
        }
 
@@ -8955,6 +9088,7 @@ WERROR _spoolss_EnumPrinterDataEx(struct pipes_struct *p,
        /* now look for a match on the key name */
        result = winreg_enum_printer_dataex(p->mem_ctx,
                                            p->server_info,
+                                           p->msg_ctx,
                                            lp_const_servicename(snum),
                                            r->in.key_name,
                                            &count,