access.c 31 KB
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/*
 * Copyright 2002 Andriy Palamarchuk
 *
 * netapi32 access functions
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

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#include "config.h"
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#include <stdarg.h>
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#include <fcntl.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
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#include "ntstatus.h"
#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winbase.h"
#include "winerror.h"
#include "lmcons.h"
#include "lmaccess.h"
#include "lmapibuf.h"
#include "lmerr.h"
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#include "lmuse.h"
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#include "ntsecapi.h"
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#include "wine/debug.h"
#include "wine/unicode.h"
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#include "wine/list.h"
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WINE_DEFAULT_DEBUG_CHANNEL(netapi32);

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/* NOTE: So far, this is implemented to support tests that require user logins,
 *       but not designed to handle real user databases. Those should probably
 *       be synced with either the host's user database or with Samba.
 *
 * FIXME: The user database should hold all the information the USER_INFO_4 struct
 * needs, but for the first try, I will just implement the USER_INFO_1 fields.
 */

struct sam_user
{
    struct list entry;
    WCHAR user_name[LM20_UNLEN+1];
    WCHAR user_password[PWLEN + 1];
    DWORD sec_since_passwd_change;
    DWORD user_priv;
    LPWSTR home_dir;
    LPWSTR user_comment;
    DWORD user_flags;
    LPWSTR user_logon_script_path;
};

static struct list user_list = LIST_INIT( user_list );

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BOOL NETAPI_IsLocalComputer(LPCWSTR ServerName);

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/************************************************************
 *                NETAPI_ValidateServername
 *
 * Validates server name
 */
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static NET_API_STATUS NETAPI_ValidateServername(LPCWSTR ServerName)
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{
    if (ServerName)
    {
        if (ServerName[0] == 0)
            return ERROR_BAD_NETPATH;
        else if (
            ((ServerName[0] == '\\') &&
             (ServerName[1] != '\\'))
            ||
            ((ServerName[0] == '\\') &&
             (ServerName[1] == '\\') &&
             (ServerName[2] == 0))
            )
            return ERROR_INVALID_NAME;
    }
    return NERR_Success;
}

/************************************************************
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 *                NETAPI_FindUser
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 *
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 * Looks for a user in the user database.
 * Returns a pointer to the entry in the user list when the user
 * is found, NULL otherwise.
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 */
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static struct sam_user* NETAPI_FindUser(LPCWSTR UserName)
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{
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    struct sam_user *user;
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    LIST_FOR_EACH_ENTRY(user, &user_list, struct sam_user, entry)
    {
        if(lstrcmpW(user->user_name, UserName) == 0)
            return user;
    }
    return NULL;
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}

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static BOOL NETAPI_IsCurrentUser(LPCWSTR username)
{
    LPWSTR curr_user = NULL;
    DWORD dwSize;
    BOOL ret = FALSE;

    dwSize = LM20_UNLEN+1;
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    curr_user = HeapAlloc(GetProcessHeap(), 0, dwSize * sizeof(WCHAR));
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    if(!curr_user)
    {
        ERR("Failed to allocate memory for user name.\n");
        goto end;
    }
    if(!GetUserNameW(curr_user, &dwSize))
    {
        ERR("Failed to get current user's user name.\n");
        goto end;
    }
    if (!lstrcmpW(curr_user, username))
    {
        ret = TRUE;
    }

end:
    HeapFree(GetProcessHeap(), 0, curr_user);
    return ret;
}

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/************************************************************
 *                NetUserAdd (NETAPI32.@)
 */
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NET_API_STATUS WINAPI NetUserAdd(LPCWSTR servername,
                  DWORD level, LPBYTE bufptr, LPDWORD parm_err)
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{
    NET_API_STATUS status;
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    struct sam_user * su = NULL;

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    FIXME("(%s, %d, %p, %p) stub!\n", debugstr_w(servername), level, bufptr, parm_err);
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    if((status = NETAPI_ValidateServername(servername)) != NERR_Success)
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        return status;
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    switch(level)
    {
    /* Level 3 and 4 are identical for the purposes of NetUserAdd */
    case 4:
    case 3:
        FIXME("Level 3 and 4 not implemented.\n");
        /* Fall through */
    case 2:
        FIXME("Level 2 not implemented.\n");
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        /* Fall through */
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    case 1:
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    {
        PUSER_INFO_1 ui = (PUSER_INFO_1) bufptr;
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        su = HeapAlloc(GetProcessHeap(), 0, sizeof(struct sam_user));
        if(!su)
        {
            status = NERR_InternalError;
            break;
        }

        if(lstrlenW(ui->usri1_name) > LM20_UNLEN)
        {
            status = NERR_BadUsername;
            break;
        }

        /*FIXME: do other checks for a valid username */
        lstrcpyW(su->user_name, ui->usri1_name);

        if(lstrlenW(ui->usri1_password) > PWLEN)
        {
            /* Always return PasswordTooShort on invalid passwords. */
            status = NERR_PasswordTooShort;
            break;
        }
        lstrcpyW(su->user_password, ui->usri1_password);

        su->sec_since_passwd_change = ui->usri1_password_age;
        su->user_priv = ui->usri1_priv;
        su->user_flags = ui->usri1_flags;

        /*FIXME: set the other LPWSTRs to NULL for now */
        su->home_dir = NULL;
        su->user_comment = NULL;
        su->user_logon_script_path = NULL;

        list_add_head(&user_list, &su->entry);
        return NERR_Success;
    }
    default:
        TRACE("Invalid level %d specified.\n", level);
        status = ERROR_INVALID_LEVEL;
        break;
    }

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    HeapFree(GetProcessHeap(), 0, su);

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    return status;
}

/************************************************************
 *                NetUserDel  (NETAPI32.@)
 */
NET_API_STATUS WINAPI NetUserDel(LPCWSTR servername, LPCWSTR username)
{
    NET_API_STATUS status;
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    struct sam_user *user;
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    TRACE("(%s, %s)\n", debugstr_w(servername), debugstr_w(username));

    if((status = NETAPI_ValidateServername(servername))!= NERR_Success)
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        return status;

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    if ((user = NETAPI_FindUser(username)) == NULL)
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        return NERR_UserNotFound;

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    list_remove(&user->entry);

    HeapFree(GetProcessHeap(), 0, user->home_dir);
    HeapFree(GetProcessHeap(), 0, user->user_comment);
    HeapFree(GetProcessHeap(), 0, user->user_logon_script_path);
    HeapFree(GetProcessHeap(), 0, user);

    return NERR_Success;
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}

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/************************************************************
 *                NetUserGetInfo  (NETAPI32.@)
 */
NET_API_STATUS WINAPI
NetUserGetInfo(LPCWSTR servername, LPCWSTR username, DWORD level,
               LPBYTE* bufptr)
{
    NET_API_STATUS status;
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    TRACE("(%s, %s, %d, %p)\n", debugstr_w(servername), debugstr_w(username),
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          level, bufptr);
    status = NETAPI_ValidateServername(servername);
    if (status != NERR_Success)
        return status;
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    if(!NETAPI_IsLocalComputer(servername))
    {
        FIXME("Only implemented for local computer, but remote server"
              "%s was requested.\n", debugstr_w(servername));
        return NERR_InvalidComputer;
    }
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    if(!NETAPI_FindUser(username) && !NETAPI_IsCurrentUser(username))
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    {
        TRACE("User %s is unknown.\n", debugstr_w(username));
        return NERR_UserNotFound;
    }
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    switch (level)
    {
    case 0:
    {
        PUSER_INFO_0 ui;
        int name_sz;

        name_sz = lstrlenW(username) + 1;

        /* set up buffer */
        NetApiBufferAllocate(sizeof(USER_INFO_0) + name_sz * sizeof(WCHAR),
                             (LPVOID *) bufptr);

        ui = (PUSER_INFO_0) *bufptr;
        ui->usri0_name = (LPWSTR) (*bufptr + sizeof(USER_INFO_0));

        /* get data */
        lstrcpyW(ui->usri0_name, username);
        break;
    }

    case 10:
    {
        PUSER_INFO_10 ui;
        PUSER_INFO_0 ui0;
        NET_API_STATUS status;
        /* sizes of the field buffers in WCHARS */
        int name_sz, comment_sz, usr_comment_sz, full_name_sz;

        comment_sz = 1;
        usr_comment_sz = 1;
        full_name_sz = 1;

        /* get data */
        status = NetUserGetInfo(servername, username, 0, (LPBYTE *) &ui0);
        if (status != NERR_Success)
        {
            NetApiBufferFree(ui0);
            return status;
        }
        name_sz = lstrlenW(ui0->usri0_name) + 1;

        /* set up buffer */
        NetApiBufferAllocate(sizeof(USER_INFO_10) +
                             (name_sz + comment_sz + usr_comment_sz +
                              full_name_sz) * sizeof(WCHAR),
                             (LPVOID *) bufptr);
        ui = (PUSER_INFO_10) *bufptr;
        ui->usri10_name = (LPWSTR) (*bufptr + sizeof(USER_INFO_10));
        ui->usri10_comment = (LPWSTR) (
            ((PBYTE) ui->usri10_name) + name_sz * sizeof(WCHAR));
        ui->usri10_usr_comment = (LPWSTR) (
            ((PBYTE) ui->usri10_comment) + comment_sz * sizeof(WCHAR));
        ui->usri10_full_name = (LPWSTR) (
            ((PBYTE) ui->usri10_usr_comment) + usr_comment_sz * sizeof(WCHAR));

        /* set data */
        lstrcpyW(ui->usri10_name, ui0->usri0_name);
        NetApiBufferFree(ui0);
        ui->usri10_comment[0] = 0;
        ui->usri10_usr_comment[0] = 0;
        ui->usri10_full_name[0] = 0;
        break;
    }

    case 1:
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      {
        static const WCHAR homedirW[] = {'H','O','M','E',0};
        PUSER_INFO_1 ui;
        PUSER_INFO_0 ui0;
        NET_API_STATUS status;
        /* sizes of the field buffers in WCHARS */
        int name_sz, password_sz, home_dir_sz, comment_sz, script_path_sz;

        password_sz = 1; /* not filled out for security reasons for NetUserGetInfo*/
        comment_sz = 1;
        script_path_sz = 1;

       /* get data */
        status = NetUserGetInfo(servername, username, 0, (LPBYTE *) &ui0);
        if (status != NERR_Success)
        {
            NetApiBufferFree(ui0);
            return status;
        }
        name_sz = lstrlenW(ui0->usri0_name) + 1;
        home_dir_sz = GetEnvironmentVariableW(homedirW, NULL,0);
        /* set up buffer */
        NetApiBufferAllocate(sizeof(USER_INFO_1) +
                             (name_sz + password_sz + home_dir_sz +
                              comment_sz + script_path_sz) * sizeof(WCHAR),
                             (LPVOID *) bufptr);

        ui = (PUSER_INFO_1) *bufptr;
        ui->usri1_name = (LPWSTR) (ui + 1);
        ui->usri1_password = ui->usri1_name + name_sz;
        ui->usri1_home_dir = ui->usri1_password + password_sz;
        ui->usri1_comment = ui->usri1_home_dir + home_dir_sz;
        ui->usri1_script_path = ui->usri1_comment + comment_sz;
        /* set data */
        lstrcpyW(ui->usri1_name, ui0->usri0_name);
        NetApiBufferFree(ui0);
        ui->usri1_password[0] = 0;
        ui->usri1_password_age = 0;
        ui->usri1_priv = 0;
        GetEnvironmentVariableW(homedirW, ui->usri1_home_dir,home_dir_sz);
        ui->usri1_comment[0] = 0;
        ui->usri1_flags = 0;
        ui->usri1_script_path[0] = 0;
        break;
      }
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    case 2:
    case 3:
    case 4:
    case 11:
    case 20:
    case 23:
    case 1003:
    case 1005:
    case 1006:
    case 1007:
    case 1008:
    case 1009:
    case 1010:
    case 1011:
    case 1012:
    case 1013:
    case 1014:
    case 1017:
    case 1018:
    case 1020:
    case 1023:
    case 1024:
    case 1025:
    case 1051:
    case 1052:
    case 1053:
    {
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        FIXME("Level %d is not implemented\n", level);
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        return NERR_InternalError;
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    }
    default:
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        TRACE("Invalid level %d is specified\n", level);
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        return ERROR_INVALID_LEVEL;
    }
    return NERR_Success;
}

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/************************************************************
 *                NetUserGetLocalGroups  (NETAPI32.@)
 */
NET_API_STATUS WINAPI
NetUserGetLocalGroups(LPCWSTR servername, LPCWSTR username, DWORD level,
                      DWORD flags, LPBYTE* bufptr, DWORD prefmaxlen,
                      LPDWORD entriesread, LPDWORD totalentries)
{
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    NET_API_STATUS status;
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    const WCHAR admins[] = {'A','d','m','i','n','i','s','t','r','a','t','o','r','s',0};
    LPWSTR currentuser;
    LOCALGROUP_USERS_INFO_0* info;
    DWORD size;
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    FIXME("(%s, %s, %d, %08x, %p %d, %p, %p) stub!\n",
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          debugstr_w(servername), debugstr_w(username), level, flags, bufptr,
          prefmaxlen, entriesread, totalentries);
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    status = NETAPI_ValidateServername(servername);
    if (status != NERR_Success)
        return status;

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    size = UNLEN + 1;
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    NetApiBufferAllocate(size * sizeof(WCHAR), (LPVOID*)&currentuser);
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    GetUserNameW(currentuser, &size);

    if (lstrcmpiW(username, currentuser) && NETAPI_FindUser(username))
    {
        NetApiBufferFree(currentuser);
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        return NERR_UserNotFound;
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    }

    NetApiBufferFree(currentuser);
    *totalentries = 1;
    size = sizeof(*info) + sizeof(admins);

    if(prefmaxlen < size)
        status = ERROR_MORE_DATA;
    else
        status = NetApiBufferAllocate(size, (LPVOID*)&info);

    if(status != NERR_Success)
    {
        *bufptr = NULL;
        *entriesread = 0;
        return status;
    }

    info->lgrui0_name = (LPWSTR)((LPBYTE)info + sizeof(*info));
    lstrcpyW(info->lgrui0_name, admins);
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    *bufptr = (LPBYTE)info;
    *entriesread = 1;
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    return NERR_Success;
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}
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/************************************************************
 *                NetUserEnum  (NETAPI32.@)
 */
NET_API_STATUS WINAPI
NetUserEnum(LPCWSTR servername, DWORD level, DWORD filter, LPBYTE* bufptr,
	    DWORD prefmaxlen, LPDWORD entriesread, LPDWORD totalentries,
	    LPDWORD resume_handle)
{
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  FIXME("(%s,%d, 0x%d,%p,%d,%p,%p,%p) stub!\n", debugstr_w(servername), level,
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        filter, bufptr, prefmaxlen, entriesread, totalentries, resume_handle);

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  return ERROR_ACCESS_DENIED;
}

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/************************************************************
 *                ACCESS_QueryAdminDisplayInformation
 *
 *  Creates a buffer with information for the Admin User
 */
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static void ACCESS_QueryAdminDisplayInformation(PNET_DISPLAY_USER *buf, PDWORD pdwSize)
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{
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    static const WCHAR sAdminUserName[] = {
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        'A','d','m','i','n','i','s','t','r','a','t','o','r',0};

    /* sizes of the field buffers in WCHARS */
    int name_sz, comment_sz, full_name_sz;
    PNET_DISPLAY_USER usr;

    /* set up buffer */
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    name_sz = lstrlenW(sAdminUserName) + 1;
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    comment_sz = 1;
    full_name_sz = 1;
    
    *pdwSize = sizeof(NET_DISPLAY_USER);
    *pdwSize += (name_sz + comment_sz + full_name_sz) * sizeof(WCHAR);
    NetApiBufferAllocate(*pdwSize, (LPVOID *) buf);

    usr = *buf;
    usr->usri1_name = (LPWSTR) ((PBYTE) usr + sizeof(NET_DISPLAY_USER));
    usr->usri1_comment = (LPWSTR) (
        ((PBYTE) usr->usri1_name) + name_sz * sizeof(WCHAR));
    usr->usri1_full_name = (LPWSTR) (
        ((PBYTE) usr->usri1_comment) + comment_sz * sizeof(WCHAR));

    /* set data */
    lstrcpyW(usr->usri1_name, sAdminUserName);
    usr->usri1_comment[0] = 0;
    usr->usri1_flags = UF_SCRIPT | UF_NORMAL_ACCOUNT | UF_DONT_EXPIRE_PASSWD;
    usr->usri1_full_name[0] = 0;
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    usr->usri1_user_id = DOMAIN_USER_RID_ADMIN;
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    usr->usri1_next_index = 0;
}

/************************************************************
 *                ACCESS_QueryGuestDisplayInformation
 *
 *  Creates a buffer with information for the Guest User
 */
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static void ACCESS_QueryGuestDisplayInformation(PNET_DISPLAY_USER *buf, PDWORD pdwSize)
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{
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    static const WCHAR sGuestUserName[] = {
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        'G','u','e','s','t',0 };

    /* sizes of the field buffers in WCHARS */
    int name_sz, comment_sz, full_name_sz;
    PNET_DISPLAY_USER usr;

    /* set up buffer */
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    name_sz = lstrlenW(sGuestUserName) + 1;
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    comment_sz = 1;
    full_name_sz = 1;
    
    *pdwSize = sizeof(NET_DISPLAY_USER);
    *pdwSize += (name_sz + comment_sz + full_name_sz) * sizeof(WCHAR);
    NetApiBufferAllocate(*pdwSize, (LPVOID *) buf);

    usr = *buf;
    usr->usri1_name = (LPWSTR) ((PBYTE) usr + sizeof(NET_DISPLAY_USER));
    usr->usri1_comment = (LPWSTR) (
        ((PBYTE) usr->usri1_name) + name_sz * sizeof(WCHAR));
    usr->usri1_full_name = (LPWSTR) (
        ((PBYTE) usr->usri1_comment) + comment_sz * sizeof(WCHAR));

    /* set data */
    lstrcpyW(usr->usri1_name, sGuestUserName);
    usr->usri1_comment[0] = 0;
    usr->usri1_flags = UF_ACCOUNTDISABLE | UF_SCRIPT | UF_NORMAL_ACCOUNT |
        UF_DONT_EXPIRE_PASSWD;
    usr->usri1_full_name[0] = 0;
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    usr->usri1_user_id = DOMAIN_USER_RID_GUEST;
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    usr->usri1_next_index = 0;
}

/************************************************************
 * Copies NET_DISPLAY_USER record.
 */
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static void ACCESS_CopyDisplayUser(const NET_DISPLAY_USER *dest, LPWSTR *dest_buf,
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                            PNET_DISPLAY_USER src)
{
    LPWSTR str = *dest_buf;

    src->usri1_name = str;
    lstrcpyW(src->usri1_name, dest->usri1_name);
    str = (LPWSTR) (
        ((PBYTE) str) + (lstrlenW(str) + 1) * sizeof(WCHAR));

    src->usri1_comment = str;
    lstrcpyW(src->usri1_comment, dest->usri1_comment);
    str = (LPWSTR) (
        ((PBYTE) str) + (lstrlenW(str) + 1) * sizeof(WCHAR));

    src->usri1_flags = dest->usri1_flags;

    src->usri1_full_name = str;
    lstrcpyW(src->usri1_full_name, dest->usri1_full_name);
    str = (LPWSTR) (
        ((PBYTE) str) + (lstrlenW(str) + 1) * sizeof(WCHAR));

    src->usri1_user_id = dest->usri1_user_id;
    src->usri1_next_index = dest->usri1_next_index;
    *dest_buf = str;
}

/************************************************************
 *                NetQueryDisplayInformation  (NETAPI32.@)
 *
 * The buffer structure:
 * - array of fixed size record of the level type
 * - strings, referenced by the record of the level type
 */
NET_API_STATUS WINAPI
NetQueryDisplayInformation(
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    LPCWSTR ServerName, DWORD Level, DWORD Index, DWORD EntriesRequested,
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    DWORD PreferredMaximumLength, LPDWORD ReturnedEntryCount,
    PVOID *SortedBuffer)
{
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    TRACE("(%s, %d, %d, %d, %d, %p, %p)\n", debugstr_w(ServerName),
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          Level, Index, EntriesRequested, PreferredMaximumLength,
          ReturnedEntryCount, SortedBuffer);
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    if(!NETAPI_IsLocalComputer(ServerName))
    {
        FIXME("Only implemented on local computer, but requested for "
              "remote server %s\n", debugstr_w(ServerName));
        return ERROR_ACCESS_DENIED;
    }

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    switch (Level)
    {
    case 1:
    {
        /* current record */
        PNET_DISPLAY_USER inf;
        /* current available strings buffer */
        LPWSTR str;
        PNET_DISPLAY_USER admin, guest;
        DWORD admin_size, guest_size;
        LPWSTR name = NULL;
        DWORD dwSize;

        /* sizes of the field buffers in WCHARS */
        int name_sz, comment_sz, full_name_sz;

        /* number of the records, returned in SortedBuffer
           3 - for current user, Administrator and Guest users
         */
        int records = 3;

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        FIXME("Level %d partially implemented\n", Level);
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        *ReturnedEntryCount = records;
        comment_sz = 1;
        full_name_sz = 1;

        /* get data */
        dwSize = UNLEN + 1;
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        NetApiBufferAllocate(dwSize * sizeof(WCHAR), (LPVOID *) &name);
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        if (!GetUserNameW(name, &dwSize))
        {
            NetApiBufferFree(name);
            return ERROR_ACCESS_DENIED;
        }
        name_sz = dwSize;
        ACCESS_QueryAdminDisplayInformation(&admin, &admin_size);
        ACCESS_QueryGuestDisplayInformation(&guest, &guest_size);

        /* set up buffer */
        dwSize = sizeof(NET_DISPLAY_USER) * records;
        dwSize += (name_sz + comment_sz + full_name_sz) * sizeof(WCHAR);

        NetApiBufferAllocate(dwSize +
                             admin_size - sizeof(NET_DISPLAY_USER) +
                             guest_size - sizeof(NET_DISPLAY_USER),
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                             SortedBuffer);
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        inf = *SortedBuffer;
667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700
        str = (LPWSTR) ((PBYTE) inf + sizeof(NET_DISPLAY_USER) * records);
        inf->usri1_name = str;
        str = (LPWSTR) (
            ((PBYTE) str) + name_sz * sizeof(WCHAR));
        inf->usri1_comment = str;
        str = (LPWSTR) (
            ((PBYTE) str) + comment_sz * sizeof(WCHAR));
        inf->usri1_full_name = str;
        str = (LPWSTR) (
            ((PBYTE) str) + full_name_sz * sizeof(WCHAR));

        /* set data */
        lstrcpyW(inf->usri1_name, name);
        NetApiBufferFree(name);
        inf->usri1_comment[0] = 0;
        inf->usri1_flags =
            UF_SCRIPT | UF_NORMAL_ACCOUNT | UF_DONT_EXPIRE_PASSWD;
        inf->usri1_full_name[0] = 0;
        inf->usri1_user_id = 0;
        inf->usri1_next_index = 0;

        inf++;
        ACCESS_CopyDisplayUser(admin, &str, inf);
        NetApiBufferFree(admin);

        inf++;
        ACCESS_CopyDisplayUser(guest, &str, inf);
        NetApiBufferFree(guest);
        break;
    }

    case 2:
    case 3:
    {
701
        FIXME("Level %d is not implemented\n", Level);
702 703 704 705
        break;
    }

    default:
706
        TRACE("Invalid level %d is specified\n", Level);
707 708 709 710
        return ERROR_INVALID_LEVEL;
    }
    return NERR_Success;
}
711 712 713 714 715 716 717 718

/************************************************************
 *                NetGetDCName  (NETAPI32.@)
 *
 *  Return the name of the primary domain controller (PDC)
 */

NET_API_STATUS WINAPI
719
NetGetDCName(LPCWSTR servername, LPCWSTR domainname, LPBYTE *bufptr)
720
{
721 722
  FIXME("(%s, %s, %p) stub!\n", debugstr_w(servername),
                 debugstr_w(domainname), bufptr);
723 724 725
  return NERR_DCNotFound; /* say we can't find a domain controller */  
}

726 727 728 729 730 731 732 733 734 735 736 737
/************************************************************
 *                NetGroupEnum  (NETAPI32.@)
 *
 */
NET_API_STATUS WINAPI
NetGroupEnum(LPCWSTR servername, DWORD level, LPBYTE *bufptr, DWORD prefmaxlen,
             LPDWORD entriesread, LPDWORD totalentries, LPDWORD resume_handle)
{
    FIXME("(%s, %d, %p, %d, %p, %p, %p) stub!\n", debugstr_w(servername),
          level, bufptr, prefmaxlen, entriesread, totalentries, resume_handle);
    return ERROR_ACCESS_DENIED;
}
738

739 740 741 742 743 744 745 746 747 748
/************************************************************
 *                NetGroupGetInfo  (NETAPI32.@)
 *
 */
NET_API_STATUS WINAPI NetGroupGetInfo(LPCWSTR servername, LPCWSTR groupname, DWORD level, LPBYTE *bufptr)
{
    FIXME("(%s, %s, %d, %p) stub!\n", debugstr_w(servername), debugstr_w(groupname), level, bufptr);
    return ERROR_ACCESS_DENIED;
}

749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773
/******************************************************************************
 * NetUserModalsGet  (NETAPI32.@)
 *
 * Retrieves global information for all users and global groups in the security
 * database.
 *
 * PARAMS
 *  szServer   [I] Specifies the DNS or the NetBIOS name of the remote server
 *                 on which the function is to execute.
 *  level      [I] Information level of the data.
 *     0   Return global passwords parameters. bufptr points to a
 *         USER_MODALS_INFO_0 struct.
 *     1   Return logon server and domain controller information. bufptr
 *         points to a USER_MODALS_INFO_1 struct.
 *     2   Return domain name and identifier. bufptr points to a 
 *         USER_MODALS_INFO_2 struct.
 *     3   Return lockout information. bufptr points to a USER_MODALS_INFO_3
 *         struct.
 *  pbuffer    [I] Buffer that receives the data.
 *
 * RETURNS
 *  Success: NERR_Success.
 *  Failure: 
 *     ERROR_ACCESS_DENIED - the user does not have access to the info.
 *     NERR_InvalidComputer - computer name is invalid.
774
 */
775 776
NET_API_STATUS WINAPI NetUserModalsGet(
    LPCWSTR szServer, DWORD level, LPBYTE *pbuffer)
777
{
778
    TRACE("(%s %d %p)\n", debugstr_w(szServer), level, pbuffer);
779 780
    
    switch (level)
781
    {
782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801
        case 0:
            /* return global passwords parameters */
            FIXME("level 0 not implemented!\n");
            *pbuffer = NULL;
            return NERR_InternalError;
        case 1:
            /* return logon server and domain controller info */
            FIXME("level 1 not implemented!\n");
            *pbuffer = NULL;
            return NERR_InternalError;
        case 2:
        {
            /* return domain name and identifier */
            PUSER_MODALS_INFO_2 umi;
            LSA_HANDLE policyHandle;
            LSA_OBJECT_ATTRIBUTES objectAttributes;
            PPOLICY_ACCOUNT_DOMAIN_INFO domainInfo;
            NTSTATUS ntStatus;
            PSID domainIdentifier = NULL;
            int domainNameLen;
802

803
            ZeroMemory(&objectAttributes, sizeof(objectAttributes));
804 805 806
            objectAttributes.Length = sizeof(objectAttributes);

            ntStatus = LsaOpenPolicy(NULL, &objectAttributes,
807 808 809 810
                                     POLICY_VIEW_LOCAL_INFORMATION,
                                     &policyHandle);
            if (ntStatus != STATUS_SUCCESS)
            {
811
                WARN("LsaOpenPolicy failed with NT status %x\n",
812 813 814
                     LsaNtStatusToWinError(ntStatus));
                return ntStatus;
            }
815 816

            ntStatus = LsaQueryInformationPolicy(policyHandle,
817 818 819 820
                                                 PolicyAccountDomainInformation,
                                                 (PVOID *)&domainInfo);
            if (ntStatus != STATUS_SUCCESS)
            {
821
                WARN("LsaQueryInformationPolicy failed with NT status %x\n",
822
                     LsaNtStatusToWinError(ntStatus));
823
                LsaClose(policyHandle);
824 825
                return ntStatus;
            }
826

827 828 829
            domainIdentifier = domainInfo->DomainSid;
            domainNameLen = lstrlenW(domainInfo->DomainName.Buffer) + 1;
            LsaClose(policyHandle);
830

831 832 833 834
            ntStatus = NetApiBufferAllocate(sizeof(USER_MODALS_INFO_2) +
                                            GetLengthSid(domainIdentifier) +
                                            domainNameLen * sizeof(WCHAR),
                                            (LPVOID *)pbuffer);
835

836
            if (ntStatus != NERR_Success)
837
            {
838 839 840 841 842 843
                WARN("NetApiBufferAllocate() failed\n");
                LsaFreeMemory(domainInfo);
                return ntStatus;
            }

            umi = (USER_MODALS_INFO_2 *) *pbuffer;
844
            umi->usrmod2_domain_id = *pbuffer + sizeof(USER_MODALS_INFO_2);
845 846
            umi->usrmod2_domain_name = (LPWSTR)(*pbuffer +
                sizeof(USER_MODALS_INFO_2) + GetLengthSid(domainIdentifier));
847

848 849 850 851 852 853 854
            lstrcpynW(umi->usrmod2_domain_name,
                      domainInfo->DomainName.Buffer,
                      domainNameLen);
            CopySid(GetLengthSid(domainIdentifier), umi->usrmod2_domain_id,
                    domainIdentifier);

            LsaFreeMemory(domainInfo);
855

856
            break;
857
        } 
858 859 860 861 862 863
        case 3:
            /* return lockout information */
            FIXME("level 3 not implemented!\n");
            *pbuffer = NULL;
            return NERR_InternalError;
        default:
864
            TRACE("Invalid level %d is specified\n", level);
865 866
            *pbuffer = NULL;
            return ERROR_INVALID_LEVEL;
867
    }
868

869
    return NERR_Success;
870
}
871

872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970
static int fork_smbpasswd( char * const argv[] )
{
#ifdef HAVE_FORK
    int pipe_out[2];

    if (pipe( pipe_out ) == -1) return -1;
    fcntl( pipe_out[0], F_SETFD, FD_CLOEXEC );
    fcntl( pipe_out[1], F_SETFD, FD_CLOEXEC );

    switch (fork())
    {
    case -1:
        close( pipe_out[0] );
        close( pipe_out[1] );
        return -1;
    case 0:
        dup2( pipe_out[0], 0 );
        close( pipe_out[0] );
        close( pipe_out[1] );
        execvp( "smbpasswd", argv );
        ERR( "can't execute smbpasswd, is it installed?\n" );
        return -1;
    default:
        close( pipe_out[0] );
        break;
    }
    return pipe_out[1];
#else
    ERR( "no fork support on this platform\n" );
    return -1;
#endif
}

static char *strdup_unixcp( const WCHAR *str )
{
    char *ret;
    int len = WideCharToMultiByte( CP_UNIXCP, 0, str, -1, NULL, 0, NULL, NULL );
    if ((ret = HeapAlloc( GetProcessHeap(), 0, len )))
        WideCharToMultiByte( CP_UNIXCP, 0, str, -1, ret, len, NULL, NULL );
    return ret;
}

static NET_API_STATUS change_password_smb( LPCWSTR domainname, LPCWSTR username,
    LPCWSTR oldpassword, LPCWSTR newpassword )
{
    static char option_silent[] = "-s";
    static char option_user[] = "-U";
    static char option_remote[] = "-r";
    static char smbpasswd[] = "smbpasswd";
    int pipe_out;
    char *server = NULL, *user, *argv[7], *old, *new;

    if (domainname && !(server = strdup_unixcp( domainname ))) return ERROR_OUTOFMEMORY;
    if (!(user = strdup_unixcp( username )))
    {
        HeapFree( GetProcessHeap(), 0, server );
        return ERROR_OUTOFMEMORY;
    }
    argv[0] = smbpasswd;
    argv[1] = option_silent;
    argv[2] = option_user;
    argv[3] = user;
    if (server)
    {
        argv[4] = option_remote;
        argv[5] = server;
        argv[6] = NULL;
    }
    else argv[4] = NULL;

    pipe_out = fork_smbpasswd( argv );
    HeapFree( GetProcessHeap(), 0, server );
    HeapFree( GetProcessHeap(), 0, user );
    if (pipe_out == -1) return NERR_InternalError;

    if (!(old = strdup_unixcp( oldpassword )))
    {
        close( pipe_out );
        return ERROR_OUTOFMEMORY;
    }
    if (!(new = strdup_unixcp( newpassword )))
    {
        close( pipe_out );
        HeapFree( GetProcessHeap(), 0, old );
        return ERROR_OUTOFMEMORY;
    }
    write( pipe_out, old, strlen( old ) );
    write( pipe_out, "\n", 1 );
    write( pipe_out, new, strlen( new ) );
    write( pipe_out, "\n", 1 );
    write( pipe_out, new, strlen( new ) );
    write( pipe_out, "\n", 1 );

    close( pipe_out );
    HeapFree( GetProcessHeap(), 0, old );
    HeapFree( GetProcessHeap(), 0, new );
    return NERR_Success;
}

971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988
/******************************************************************************
 *                NetUserChangePassword  (NETAPI32.@)
 * PARAMS
 *  domainname  [I] Optional. Domain on which the user resides or the logon
 *                  domain of the current user if NULL.
 *  username    [I] Optional. Username to change the password for or the name
 *                  of the current user if NULL.
 *  oldpassword [I] The user's current password.
 *  newpassword [I] The password that the user will be changed to using.
 *
 * RETURNS
 *  Success: NERR_Success.
 *  Failure: NERR_* failure code or win error code.
 *
 */
NET_API_STATUS WINAPI NetUserChangePassword(LPCWSTR domainname, LPCWSTR username,
    LPCWSTR oldpassword, LPCWSTR newpassword)
{
989 990 991 992
    struct sam_user *user;

    TRACE("(%s, %s, ..., ...)\n", debugstr_w(domainname), debugstr_w(username));

993 994 995
    if (!change_password_smb( domainname, username, oldpassword, newpassword ))
        return NERR_Success;

996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010
    if(domainname)
        FIXME("Ignoring domainname %s.\n", debugstr_w(domainname));

    if((user = NETAPI_FindUser(username)) == NULL)
        return NERR_UserNotFound;

    if(lstrcmpW(user->user_password, oldpassword) != 0)
        return ERROR_INVALID_PASSWORD;

    if(lstrlenW(newpassword) > PWLEN)
        return ERROR_PASSWORD_RESTRICTION;

    lstrcpyW(user->user_password, newpassword);

    return NERR_Success;
1011
}
1012

1013
NET_API_STATUS WINAPI NetUseAdd(LMSTR servername, DWORD level, LPBYTE bufptr, LPDWORD parm_err)
1014 1015 1016 1017
{
    FIXME("%s %d %p %p stub\n", debugstr_w(servername), level, bufptr, parm_err);
    return NERR_Success;
}
1018 1019 1020 1021 1022 1023

NET_API_STATUS WINAPI NetUseDel(LMSTR servername, LMSTR usename, DWORD forcecond)
{
    FIXME("%s %s %d stub\n", debugstr_w(servername), debugstr_w(usename), forcecond);
    return NERR_Success;
}