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Sourcecode: samba-doc-ja version File versions

srv_reg_nt.c

/* 
 *  Unix SMB/Netbios implementation.
 *  Version 1.9.
 *  RPC Pipe client / server routines
 *  Copyright (C) Andrew Tridgell              1992-1997,
 *  Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
 *  Copyright (C) Paul Ashton                       1997.
 *  Copyright (C) Hewlett-Packard Company           1999.
 *  Copyright (C) Jeremy Allison                            2001.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/* Implementation of registry functions. */

#include "includes.h"

struct reg_info
{
      /* for use by \PIPE\winreg */
      fstring name; /* name of registry key */
};

static void free_reg_info(void *ptr)
{
      struct reg_info *info = (struct reg_info *)ptr;

      SAFE_FREE(info);
}

/*******************************************************************
 reg_reply_unknown_1
 ********************************************************************/

NTSTATUS _reg_close(pipes_struct *p, REG_Q_CLOSE *q_u, REG_R_CLOSE *r_u)
{
      /* set up the REG unknown_1 response */
      ZERO_STRUCT(r_u->pol);

      /* close the policy handle */
      if (!close_policy_hnd(p, &q_u->pol))
            return NT_STATUS_OBJECT_NAME_INVALID;

      return NT_STATUS_OK;
}

/*******************************************************************
 reg_reply_open
 ********************************************************************/

NTSTATUS _reg_open(pipes_struct *p, REG_Q_OPEN_HKLM *q_u, REG_R_OPEN_HKLM *r_u)
{
      if (!create_policy_hnd(p, &r_u->pol, free_reg_info, NULL))
            return NT_STATUS_OBJECT_NAME_NOT_FOUND;

      return NT_STATUS_OK;
}

/*******************************************************************
 reg_reply_open_entry
 ********************************************************************/

NTSTATUS _reg_open_entry(pipes_struct *p, REG_Q_OPEN_ENTRY *q_u, REG_R_OPEN_ENTRY *r_u)
{
      POLICY_HND pol;
      fstring name;
      struct reg_info *info = NULL;

      DEBUG(5,("reg_open_entry: %d\n", __LINE__));

      if (!find_policy_by_hnd(p, &q_u->pol, NULL))
            return NT_STATUS_INVALID_HANDLE;

      fstrcpy(name, dos_unistrn2(q_u->uni_name.buffer, q_u->uni_name.uni_str_len));

      DEBUG(5,("reg_open_entry: %s\n", name));

      /* lkcl XXXX do a check on the name, here */
      if (!strequal(name, "SYSTEM\\CurrentControlSet\\Control\\ProductOptions") &&
          !strequal(name, "System\\CurrentControlSet\\services\\Netlogon\\parameters\\"))
                  return NT_STATUS_ACCESS_DENIED;

      if ((info = (struct reg_info *)malloc(sizeof(struct reg_info))) == NULL)
            return NT_STATUS_NO_MEMORY;

      ZERO_STRUCTP(info);
      fstrcpy(info->name, name);

      if (!create_policy_hnd(p, &pol, free_reg_info, (void *)info))
            return NT_STATUS_TOO_MANY_SECRETS; /* ha ha very droll */

      init_reg_r_open_entry(r_u, &pol, NT_STATUS_OK);

      DEBUG(5,("reg_open_entry: %d\n", __LINE__));

      return r_u->status;
}

/*******************************************************************
 reg_reply_info
 ********************************************************************/

NTSTATUS _reg_info(pipes_struct *p, REG_Q_INFO *q_u, REG_R_INFO *r_u)
{
      NTSTATUS status = NT_STATUS_OK;
      const char *key = NULL;
      uint32 type=0x1; /* key type: REG_SZ */

      UNISTR2 *uni_key = NULL;
      BUFFER2 *buf = NULL;
      fstring name;

      DEBUG(5,("_reg_info: %d\n", __LINE__));

      if (!find_policy_by_hnd(p, &q_u->pol, NULL))
            return NT_STATUS_INVALID_HANDLE;

      fstrcpy(name, dos_unistrn2(q_u->uni_type.buffer, q_u->uni_type.uni_str_len));

      DEBUG(5,("reg_info: checking key: %s\n", name));

      uni_key = (UNISTR2 *)talloc_zero(p->mem_ctx, sizeof(UNISTR2));
      buf = (BUFFER2 *)talloc_zero(p->mem_ctx, sizeof(BUFFER2));

      if (!uni_key || !buf)
            return NT_STATUS_NO_MEMORY;

      if ( strequal(name, "RefusePasswordChange") ) {
            type=0xF770;
            status = NT_STATUS_NO_SUCH_FILE;
            init_unistr2(uni_key, "", 0);
            init_buffer2(buf, (uint8*) uni_key->buffer, uni_key->uni_str_len*2);
            
            buf->buf_max_len=4;

            goto out;
      }

      switch (lp_server_role()) {
      case ROLE_DOMAIN_PDC:
      case ROLE_DOMAIN_BDC:
            key = "LanmanNT";
            break;
      case ROLE_STANDALONE:
            key = "ServerNT";
            break;
      case ROLE_DOMAIN_MEMBER:
            key = "WinNT";
            break;
      }

      /* This makes the server look like a member server to clients */
      /* which tells clients that we have our own local user and    */
      /* group databases and helps with ACL support.                */

      init_unistr2(uni_key, key, strlen(key)+1);
      init_buffer2(buf, (uint8*)uni_key->buffer, uni_key->uni_str_len*2);
  
 out:
      init_reg_r_info(q_u->ptr_buf, r_u, buf, type, status);

      DEBUG(5,("reg_open_entry: %d\n", __LINE__));

      return status;
}

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