source4/libnet/libnet_time.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Stefan Metzmacher      2004
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22 #include "libnet/libnet.h"
  23 #include "system/time.h"
  24 #include "librpc/gen_ndr/ndr_srvsvc_c.h"
  25
  26 /*
  27  * get the remote time of a server via srvsvc_NetRemoteTOD
  28  */
  29 static NTSTATUS libnet_RemoteTOD_srvsvc(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_RemoteTOD *r)
  30 {
  31         NTSTATUS status;
  32         struct libnet_RpcConnect c;
  33         struct srvsvc_NetRemoteTOD tod;
  34         struct tm tm;
  35
  36         /* prepare connect to the SRVSVC pipe of a timeserver */
  37         c.level             = LIBNET_RPC_CONNECT_SERVER;
  38         c.in.name           = r->srvsvc.in.server_name;
  39         c.in.dcerpc_iface   = &dcerpc_table_srvsvc;
  40
  41         /* 1. connect to the SRVSVC pipe of a timeserver */
  42         status = libnet_RpcConnect(ctx, mem_ctx, &c);
  43         if (!NT_STATUS_IS_OK(status)) {
  44                 r->srvsvc.out.error_string = talloc_asprintf(mem_ctx,
  45                                                 "Connection to SRVSVC pipe of server '%s' failed: %s\n",
  46                                                 r->srvsvc.in.server_name, nt_errstr(status));
  47                 return status;
  48         }
  49
  50         /* prepare srvsvc_NetrRemoteTOD */
  51         tod.in.server_unc = talloc_asprintf(mem_ctx, "\\%s", c.in.name);
  52
  53         /* 2. try srvsvc_NetRemoteTOD */
  54         status = dcerpc_srvsvc_NetRemoteTOD(c.out.dcerpc_pipe, mem_ctx, &tod);
  55         if (!NT_STATUS_IS_OK(status)) {
  56                 r->srvsvc.out.error_string = talloc_asprintf(mem_ctx,
  57                                                 "srvsvc_NetrRemoteTOD on server '%s' failed: %s\n",
  58                                                 r->srvsvc.in.server_name, nt_errstr(status));
  59                 goto disconnect;
  60         }
  61
  62         /* check result of srvsvc_NetrRemoteTOD */
  63         if (!W_ERROR_IS_OK(tod.out.result)) {
  64                 r->srvsvc.out.error_string = talloc_asprintf(mem_ctx,
  65                                                 "srvsvc_NetrRemoteTOD on server '%s' failed: %s\n",
  66                                                 r->srvsvc.in.server_name, win_errstr(tod.out.result));
  67                 status = werror_to_ntstatus(tod.out.result);
  68                 goto disconnect;
  69         }
  70
  71         /* need to set the out parameters */
  72         tm.tm_sec = (int)tod.out.info->secs;
  73         tm.tm_min = (int)tod.out.info->mins;
  74         tm.tm_hour = (int)tod.out.info->hours;
  75         tm.tm_mday = (int)tod.out.info->day;
  76         tm.tm_mon = (int)tod.out.info->month -1;
  77         tm.tm_year = (int)tod.out.info->year - 1900;
  78         tm.tm_wday = -1;
  79         tm.tm_yday = -1;
  80         tm.tm_isdst = -1;
  81
  82         r->srvsvc.out.time = timegm(&tm);
  83         r->srvsvc.out.time_zone = tod.out.info->timezone * 60;
  84
  85         goto disconnect;
  86
  87 disconnect:
  88         /* close connection */
  89         talloc_free(c.out.dcerpc_pipe);
  90
  91         return status;
  92 }
  93
  94 static NTSTATUS libnet_RemoteTOD_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_RemoteTOD *r)
  95 {
  96         NTSTATUS status;
  97         union libnet_RemoteTOD r2;
  98
  99         r2.srvsvc.level                 = LIBNET_REMOTE_TOD_SRVSVC;
 100         r2.srvsvc.in.server_name        = r->generic.in.server_name;
 101
 102         status = libnet_RemoteTOD(ctx, mem_ctx, &r2);
 103
 104         r->generic.out.time             = r2.srvsvc.out.time;
 105         r->generic.out.time_zone        = r2.srvsvc.out.time_zone;
 106
 107         r->generic.out.error_string     = r2.srvsvc.out.error_string;
 108
 109         return status;
 110 }
 111
 112 NTSTATUS libnet_RemoteTOD(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_RemoteTOD *r)
 113 {
 114         switch (r->generic.level) {
 115                 case LIBNET_REMOTE_TOD_GENERIC:
 116                         return libnet_RemoteTOD_generic(ctx, mem_ctx, r);
 117                 case LIBNET_REMOTE_TOD_SRVSVC:
 118                         return libnet_RemoteTOD_srvsvc(ctx, mem_ctx, r);
 119         }
 120
 121         return NT_STATUS_INVALID_LEVEL;
 122 }