source3/smbd/server_reload.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Main SMB server routines
   4    Copyright (C) Andrew Tridgell                1992-1998
   5    Copyright (C) Martin Pool                    2002
   6    Copyright (C) Jelmer Vernooij                2002-2003
   7    Copyright (C) Volker Lendecke                1993-2007
   8    Copyright (C) Jeremy Allison                 1993-2007
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25 #include "smbd/globals.h"
  26 #include "librpc/gen_ndr/messaging.h"
  27 #include "nt_printing.h"
  28
  29 /****************************************************************************
  30  Reload printers
  31 **************************************************************************/
  32 void reload_printers(struct messaging_context *msg_ctx)
  33 {
  34         struct auth_serversupplied_info *server_info = NULL;
  35         struct spoolss_PrinterInfo2 *pinfo2 = NULL;
  36         int snum;
  37         int n_services = lp_numservices();
  38         int pnum = lp_servicenumber(PRINTERS_NAME);
  39         const char *pname;
  40         NTSTATUS status;
  41         bool skip = false;
  42
  43         pcap_cache_reload(server_event_context(), msg_ctx);
  44
  45         status = make_server_info_system(talloc_tos(), &server_info);
  46         if (!NT_STATUS_IS_OK(status)) {
  47                 DEBUG(3, ("reload_printers: "
  48                           "Could not create system server_info\n"));
  49                 /* can't remove stale printers before we
  50                  * are fully initilized */
  51                 skip = true;
  52         }
  53
  54         /* remove stale printers */
  55         for (snum = 0; skip == false && snum < n_services; snum++) {
  56                 /* avoid removing PRINTERS_NAME or non-autoloaded printers */
  57                 if (snum == pnum || !(lp_snum_ok(snum) && lp_print_ok(snum) &&
  58                                       lp_autoloaded(snum)))
  59                         continue;
  60
  61                 pname = lp_printername(snum);
  62                 if (!pcap_printername_ok(pname)) {
  63                         DEBUG(3, ("removing stale printer %s\n", pname));
  64
  65                         if (is_printer_published(server_info, server_info,
  66                                                  msg_ctx,
  67                                                  NULL, lp_servicename(snum),
  68                                                  NULL, &pinfo2)) {
  69                                 nt_printer_publish(server_info,
  70                                                    server_info,
  71                                                    msg_ctx,
  72                                                    pinfo2,
  73                                                    DSPRINT_UNPUBLISH);
  74                                 TALLOC_FREE(pinfo2);
  75                         }
  76                         nt_printer_remove(server_info, server_info, msg_ctx,
  77                                           pname);
  78                         lp_killservice(snum);
  79                 }
  80         }
  81
  82         load_printers(server_event_context(), msg_ctx);
  83
  84         TALLOC_FREE(server_info);
  85 }
  86
  87 /****************************************************************************
  88  Reload the services file.
  89 **************************************************************************/
  90
  91 bool reload_services(struct messaging_context *msg_ctx, int smb_sock,
  92                      bool test)
  93 {
  94         bool ret;
  95
  96         if (lp_loaded()) {
  97                 char *fname = lp_configfile();
  98                 if (file_exist(fname) &&
  99                     !strcsequal(fname, get_dyn_CONFIGFILE())) {
 100                         set_dyn_CONFIGFILE(fname);
 101                         test = False;
 102                 }
 103         }
 104
 105         reopen_logs();
 106
 107         if (test && !lp_file_list_changed())
 108                 return(True);
 109
 110         lp_killunused(conn_snum_used);
 111
 112         ret = lp_load(get_dyn_CONFIGFILE(), False, False, True, True);
 113
 114         reload_printers(msg_ctx);
 115
 116         /* perhaps the config filename is now set */
 117         if (!test)
 118                 reload_services(msg_ctx, smb_sock, True);
 119
 120         reopen_logs();
 121
 122         load_interfaces();
 123
 124         if (smb_sock != -1) {
 125                 set_socket_options(smb_sock,"SO_KEEPALIVE");
 126                 set_socket_options(smb_sock, lp_socket_options());
 127         }
 128
 129         mangle_reset_cache();
 130         reset_stat_cache();
 131
 132         /* this forces service parameters to be flushed */
 133         set_current_service(NULL,0,True);
 134
 135         return(ret);
 136 }