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 3 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, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "libnet/libnet.h"
  22 #include "system/time.h"
  23 #include "librpc/gen_ndr/ndr_srvsvc_c.h"
  24
  25 /*
  26  * get the remote time of a server via srvsvc_NetRemoteTOD
  27  */
  28 static NTSTATUS libnet_RemoteTOD_srvsvc(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_RemoteTOD *r)
  29 {
  30         NTSTATUS status;
  31         struct libnet_RpcConnect c;
  32         struct srvsvc_NetRemoteTOD tod;
  33         struct srvsvc_NetRemoteTODInfo *info = NULL;
  34         struct tm tm;
  35
  36         ZERO_STRUCT(c);
  37
  38         /* prepare connect to the SRVSVC pipe of a timeserver */
  39         c.level             = LIBNET_RPC_CONNECT_SERVER;
  40         c.in.name           = r->srvsvc.in.server_name;
  41         c.in.dcerpc_iface   = &ndr_table_srvsvc;
  42
  43         /* 1. connect to the SRVSVC pipe of a timeserver */
  44         status = libnet_RpcConnect(ctx, mem_ctx, &c);
  45         if (!NT_STATUS_IS_OK(status)) {
  46                 r->srvsvc.out.error_string = talloc_asprintf(mem_ctx,
  47                                                 "Connection to SRVSVC pipe of server '%s' failed: %s",
  48                                                 r->srvsvc.in.server_name, nt_errstr(status));
  49                 return status;
  50         }
  51
  52         /* prepare srvsvc_NetrRemoteTOD */
  53         tod.in.server_unc = talloc_asprintf(mem_ctx, "\\%s", c.in.name);
  54         tod.out.info = &info;
  55
  56         /* 2. try srvsvc_NetRemoteTOD */
  57         status = dcerpc_srvsvc_NetRemoteTOD_r(c.out.dcerpc_pipe->binding_handle, mem_ctx, &tod);
  58         if (!NT_STATUS_IS_OK(status)) {
  59                 r->srvsvc.out.error_string = talloc_asprintf(mem_ctx,
  60                                                 "srvsvc_NetrRemoteTOD on server '%s' failed: %s",
  61                                                 r->srvsvc.in.server_name, nt_errstr(status));
  62                 goto disconnect;
  63         }
  64
  65         /* check result of srvsvc_NetrRemoteTOD */
  66         if (!W_ERROR_IS_OK(tod.out.result)) {
  67                 r->srvsvc.out.error_string = talloc_asprintf(mem_ctx,
  68                                                 "srvsvc_NetrRemoteTOD on server '%s' failed: %s",
  69                                                 r->srvsvc.in.server_name, win_errstr(tod.out.result));
  70                 status = werror_to_ntstatus(tod.out.result);
  71                 goto disconnect;
  72         }
  73
  74         /* need to set the out parameters */
  75         tm.tm_sec = (int)info->secs;
  76         tm.tm_min = (int)info->mins;
  77         tm.tm_hour = (int)info->hours;
  78         tm.tm_mday = (int)info->day;
  79         tm.tm_mon = (int)info->month -1;
  80         tm.tm_year = (int)info->year - 1900;
  81         tm.tm_wday = -1;
  82         tm.tm_yday = -1;
  83         tm.tm_isdst = -1;
  84
  85         r->srvsvc.out.time = timegm(&tm);
  86         r->srvsvc.out.time_zone = info->timezone * 60;
  87
  88         goto disconnect;
  89
  90 disconnect:
  91         /* close connection */
  92         talloc_free(c.out.dcerpc_pipe);
  93
  94         return status;
  95 }
  96
  97 static NTSTATUS libnet_RemoteTOD_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_RemoteTOD *r)
  98 {
  99         NTSTATUS status;
 100         union libnet_RemoteTOD r2;
 101
 102         r2.srvsvc.level                 = LIBNET_REMOTE_TOD_SRVSVC;
 103         r2.srvsvc.in.server_name        = r->generic.in.server_name;
 104
 105         status = libnet_RemoteTOD(ctx, mem_ctx, &r2);
 106
 107         r->generic.out.time             = r2.srvsvc.out.time;
 108         r->generic.out.time_zone        = r2.srvsvc.out.time_zone;
 109
 110         r->generic.out.error_string     = r2.srvsvc.out.error_string;
 111
 112         return status;
 113 }
 114
 115 NTSTATUS libnet_RemoteTOD(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_RemoteTOD *r)
 116 {
 117         switch (r->generic.level) {
 118                 case LIBNET_REMOTE_TOD_GENERIC:
 119                         return libnet_RemoteTOD_generic(ctx, mem_ctx, r);
 120                 case LIBNET_REMOTE_TOD_SRVSVC:
 121                         return libnet_RemoteTOD_srvsvc(ctx, mem_ctx, r);
 122         }
 123
 124         return NT_STATUS_INVALID_LEVEL;
 125 }