source/rpc_server/srv_reg_nt.c

   1 /*
   2  *  Unix SMB/Netbios implementation.
   3  *  Version 1.9.
   4  *  RPC Pipe client / server routines
   5  *  Copyright (C) Andrew Tridgell              1992-1997,
   6  *  Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
   7  *  Copyright (C) Paul Ashton                       1997.
   8  *  Copyright (C) Hewlett-Packard Company           1999.
   9  *  Copyright (C) Jeremy Allison                                        2001.
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, write to the Free Software
  23  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24  */
  25
  26 /* Implementation of registry functions. */
  27
  28 #include "includes.h"
  29
  30 struct reg_info
  31 {
  32     /* for use by \PIPE\winreg */
  33     fstring name; /* name of registry key */
  34 };
  35
  36 static void free_reg_info(void *ptr)
  37 {
  38         struct reg_info *info = (struct reg_info *)ptr;
  39
  40         safe_free(info);
  41 }
  42
  43 /*******************************************************************
  44  reg_reply_unknown_1
  45  ********************************************************************/
  46
  47 NTSTATUS _reg_close(pipes_struct *p, REG_Q_CLOSE *q_u, REG_R_CLOSE *r_u)
  48 {
  49         /* set up the REG unknown_1 response */
  50         ZERO_STRUCT(r_u->pol);
  51
  52         /* close the policy handle */
  53         if (!close_policy_hnd(p, &q_u->pol))
  54                 return NT_STATUS_OBJECT_NAME_INVALID;
  55
  56         return NT_STATUS_OK;
  57 }
  58
  59 /*******************************************************************
  60  reg_reply_open
  61  ********************************************************************/
  62
  63 NTSTATUS _reg_open(pipes_struct *p, REG_Q_OPEN_HKLM *q_u, REG_R_OPEN_HKLM *r_u)
  64 {
  65         if (!create_policy_hnd(p, &r_u->pol, free_reg_info, NULL))
  66                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
  67
  68         return NT_STATUS_OK;
  69 }
  70
  71 /*******************************************************************
  72  reg_reply_open_entry
  73  ********************************************************************/
  74
  75 NTSTATUS _reg_open_entry(pipes_struct *p, REG_Q_OPEN_ENTRY *q_u, REG_R_OPEN_ENTRY *r_u)
  76 {
  77         POLICY_HND pol;
  78         fstring name;
  79         struct reg_info *info = NULL;
  80
  81         DEBUG(5,("reg_open_entry: %d\n", __LINE__));
  82
  83         if (!find_policy_by_hnd(p, &q_u->pol, NULL))
  84                 return NT_STATUS_INVALID_HANDLE;
  85
  86         fstrcpy(name, dos_unistrn2(q_u->uni_name.buffer, q_u->uni_name.uni_str_len));
  87
  88         DEBUG(5,("reg_open_entry: %s\n", name));
  89
  90         /* lkcl XXXX do a check on the name, here */
  91         if (!strequal(name, "SYSTEM\\CurrentControlSet\\Control\\ProductOptions") &&
  92             !strequal(name, "System\\CurrentControlSet\\services\\Netlogon\\parameters\\"))
  93                         return NT_STATUS_ACCESS_DENIED;
  94
  95         if ((info = (struct reg_info *)malloc(sizeof(struct reg_info))) == NULL)
  96                 return NT_STATUS_NO_MEMORY;
  97
  98         ZERO_STRUCTP(info);
  99         fstrcpy(info->name, name);
 100
 101         if (!create_policy_hnd(p, &pol, free_reg_info, (void *)info))
 102                 return NT_STATUS_TOO_MANY_SECRETS; /* ha ha very droll */
 103
 104         init_reg_r_open_entry(r_u, &pol, NT_STATUS_OK);
 105
 106         DEBUG(5,("reg_open_entry: %d\n", __LINE__));
 107
 108         return r_u->status;
 109 }
 110
 111 /*******************************************************************
 112  reg_reply_info
 113  ********************************************************************/
 114
 115 NTSTATUS _reg_info(pipes_struct *p, REG_Q_INFO *q_u, REG_R_INFO *r_u)
 116 {
 117         NTSTATUS status = NT_STATUS_OK;
 118         char *key = NULL;
 119         uint32 type=0x1; /* key type: REG_SZ */
 120
 121         UNISTR2 *uni_key = NULL;
 122         BUFFER2 *buf = NULL;
 123         fstring name;
 124
 125         DEBUG(5,("_reg_info: %d\n", __LINE__));
 126
 127         if (find_policy_by_hnd(p, &q_u->pol, NULL) == -1)
 128                 return NT_STATUS_INVALID_HANDLE;
 129
 130         fstrcpy(name, dos_unistrn2(q_u->uni_type.buffer, q_u->uni_type.uni_str_len));
 131
 132         DEBUG(5,("reg_info: checking key: %s\n", name));
 133
 134         uni_key = (UNISTR2 *)talloc_zero(p->mem_ctx, sizeof(UNISTR2));
 135         buf = (BUFFER2 *)talloc_zero(p->mem_ctx, sizeof(BUFFER2));
 136
 137         if (!uni_key || !buf)
 138                 return NT_STATUS_NO_MEMORY;
 139
 140         if ( strequal(name, "RefusePasswordChange") ) {
 141                 type=0xF770;
 142                 status = NT_STATUS_NO_SUCH_FILE;
 143                 init_unistr2(uni_key, "", 0);
 144                 init_buffer2(buf, (uint8*) uni_key->buffer, uni_key->uni_str_len*2);
 145
 146                 buf->buf_max_len=4;
 147
 148                 goto out;
 149         }
 150
 151         switch (lp_server_role()) {
 152         case ROLE_DOMAIN_PDC:
 153         case ROLE_DOMAIN_BDC:
 154                 key = "LanmanNT";
 155                 break;
 156         case ROLE_STANDALONE:
 157                 key = "ServerNT";
 158                 break;
 159         case ROLE_DOMAIN_MEMBER:
 160                 key = "WinNT";
 161                 break;
 162         }
 163
 164         /* This makes the server look like a member server to clients */
 165         /* which tells clients that we have our own local user and    */
 166         /* group databases and helps with ACL support.                */
 167
 168         init_unistr2(uni_key, key, strlen(key)+1);
 169         init_buffer2(buf, (uint8*)uni_key->buffer, uni_key->uni_str_len*2);
 170
 171  out:
 172         init_reg_r_info(q_u->ptr_buf, r_u, buf, type, status);
 173
 174         DEBUG(5,("reg_open_entry: %d\n", __LINE__));
 175
 176         return status;
 177 }