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mirror of https://github.com/samba-team/samba.git synced 2024-12-29 11:21:54 +03:00
samba-mirror/source/rpc_server/srv_reg_nt.c
Gerald Carter 2a68e4529a fixed the geyed out registry keys. Stupid typo on my part.
Now on to plug in the printing tdbs to the registry view....

jerry
0001-01-01 00:00:00 +00:00

811 lines
21 KiB
C

/*
* Unix SMB/CIFS implementation.
* 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.
* Copyright (C) Gerald Carter 2002.
*
* 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"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
#define KEY_HKLM "HKLM"
#define KEY_HKU "HKU"
#define OUR_HANDLE(hnd) (((hnd)==NULL)?"NULL":(IVAL((hnd)->data5,4)==(uint32)sys_getpid()?"OURS":"OTHER")), \
((unsigned int)IVAL((hnd)->data5,4)),((unsigned int)sys_getpid())
/* structure to store the registry handles */
typedef struct _RegistryKey {
struct _RegistryKey *prev, *next;
fstring name; /* name of registry key */
POLICY_HND hnd;
} Registry_Key;
static Registry_Key *regkeys_list;
static TDB_CONTEXT *tdb_reg;
/***********************************************************************
Add subkey strings to the registry tdb under a defined key
fmt is the same format as tdb_pack except this function only supports
fstrings
***********************************************************************/
static BOOL store_reg_keys( TDB_CONTEXT *tdb, char *keyname, char **subkeys, uint32 num_subkeys )
{
TDB_DATA kbuf, dbuf;
void *buffer, *tmpbuf;
int i = 0;
uint32 len, buflen;
BOOL ret = True;
if ( !keyname )
return False;
/* allocate some initial memory */
buffer = malloc(sizeof(pstring));
buflen = sizeof(pstring);
len = 0;
/* store the number of subkeys */
len += tdb_pack(buffer+len, buflen-len, "d", num_subkeys);
/* pack all the strings */
for (i=0; i<num_subkeys; i++) {
len += tdb_pack(buffer+len, buflen-len, "f", subkeys[i]);
if ( len > buflen ) {
/* allocate some extra space */
if ((tmpbuf = Realloc( buffer, len*2 )) == NULL) {
DEBUG(0,("store_reg_keys: Failed to realloc memory of size [%d]\n", len*2));
ret = False;
goto done;
}
buffer = tmpbuf;
buflen = len*2;
len = tdb_pack(buffer+len, buflen-len, "f", subkeys[i]);
}
}
/* finally write out the data */
kbuf.dptr = keyname;
kbuf.dsize = strlen(keyname)+1;
dbuf.dptr = buffer;
dbuf.dsize = len;
if ( tdb_store( tdb, kbuf, dbuf, TDB_REPLACE ) == -1) {
ret = False;
goto done;
}
done:
SAFE_FREE( buffer );
return ret;
}
/***********************************************************************
Retrieve an array of strings containing subkeys. Memory should be
released by the caller. The subkeys are stored in a catenated string
of null terminated character strings
***********************************************************************/
static int fetch_reg_keys( TDB_CONTEXT *tdb, char* key, char **subkeys )
{
pstring path;
uint32 num_items;
TDB_DATA dbuf;
void *buf;
uint32 buflen, len;
int i;
char *s;
pstrcpy( path, key );
/* convert to key format */
pstring_sub( path, "\\", "/" );
dbuf = tdb_fetch_by_string( tdb, path );
buf = dbuf.dptr;
buflen = dbuf.dsize;
if ( !buf ) {
DEBUG(5,("fetch_reg_keys: Failed to fetch any subkeys for [%s]\n", key));
return 0;
}
len = tdb_unpack( buf, buflen, "d", &num_items);
if (num_items) {
if ( (*subkeys = (char*)malloc(sizeof(fstring)*num_items)) == NULL ) {
DEBUG(0,("fetch_reg_keys: Failed to malloc memory for subkey array containing [%d] items!\n",
num_items));
num_items = -1;
goto done;
}
}
s = *subkeys;
for (i=0; i<num_items; i++) {
len += tdb_unpack( buf+len, buflen-len, "f", s );
s += strlen(s) + 1;
}
done:
SAFE_FREE(dbuf.dptr);
return num_items;
}
/***********************************************************************
count the number of subkeys dtored in the registry
***********************************************************************/
static int fetch_reg_keys_count( TDB_CONTEXT *tdb, char* key )
{
pstring path;
uint32 num_items;
TDB_DATA dbuf;
void *buf;
uint32 buflen, len;
pstrcpy( path, key );
/* convert to key format */
pstring_sub( path, "\\", "/" );
dbuf = tdb_fetch_by_string( tdb, path );
buf = dbuf.dptr;
buflen = dbuf.dsize;
if ( !buf ) {
DEBUG(5,("fetch_reg_keys: Failed to fetch any subkeys for [%s]\n", key));
return 0;
}
len = tdb_unpack( buf, buflen, "d", &num_items);
SAFE_FREE( buf );
return num_items;
}
/***********************************************************************
retreive a specific subkey specified by index. The subkey parameter
is assumed to be an fstring.
***********************************************************************/
static BOOL fetch_reg_keys_specific( TDB_CONTEXT *tdb, char* key, char* subkey, uint32 index )
{
int num_subkeys, i;
char *subkeys = NULL;
char *s;
num_subkeys = fetch_reg_keys( tdb_reg, key, &subkeys );
if ( num_subkeys == -1 )
return False;
s = subkeys;
for ( i=0; i<num_subkeys; i++ ) {
/* copy the key if the index matches */
if ( i == index ) {
fstrcpy( subkey, s );
break;
}
/* go onto the next string */
s += strlen(s) + 1;
}
SAFE_FREE(subkeys);
return True;
}
/***********************************************************************
Open the registry database
***********************************************************************/
static BOOL init_registry_data( TDB_CONTEXT* tdb_reg )
{
pstring keyname;
char *subkeys[3];
/* HKEY_LOCAL_MACHINE */
pstrcpy( keyname, KEY_HKLM );
subkeys[0] = "SYSTEM";
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 1 ))
return False;
pstrcpy( keyname, KEY_HKLM );
pstrcat( keyname, "/SYSTEM" );
subkeys[0] = "CurrentControlSet";
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 1 ))
return False;
pstrcpy( keyname, KEY_HKLM );
pstrcat( keyname, "/SYSTEM/CurrentControlSet" );
subkeys[0] = "Control";
subkeys[1] = "services";
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 2 ))
return False;
pstrcpy( keyname, KEY_HKLM );
pstrcat( keyname, "/SYSTEM/CurrentControlSet/Control" );
subkeys[0] = "Print";
subkeys[1] = "ProduceOptions";
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 2 ))
return False;
pstrcpy( keyname, KEY_HKLM );
pstrcat( keyname, "/SYSTEM/CurrentControlSet/Control/Print" );
subkeys[0] = "Environments";
subkeys[1] = "Forms";
subkeys[2] = "Printers";
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 3 ))
return False;
pstrcpy( keyname, KEY_HKLM );
pstrcat( keyname, "/SYSTEM/CurrentControlSet/Control/ProductOptions" );
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 0 ))
return False;
pstrcpy( keyname, KEY_HKLM );
pstrcat( keyname, "/SYSTEM/CurrentControlSet/services" );
subkeys[0] = "Netlogon";
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 1 ))
return False;
pstrcpy( keyname, KEY_HKLM );
pstrcat( keyname, "/SYSTEM/CurrentControlSet/services/Netlogon" );
subkeys[0] = "parameters";
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 1 ))
return False;
pstrcpy( keyname, KEY_HKLM );
pstrcat( keyname, "/SYSTEM/CurrentControlSet/services/Netlogon/parameters" );
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 0 ))
return False;
/* HKEY_USER */
pstrcpy( keyname, KEY_HKU );
if ( !store_reg_keys( tdb_reg, keyname, subkeys, 0 ) )
return False;
return True;
}
/***********************************************************************
Open the registry database
***********************************************************************/
BOOL init_registry( void )
{
static pid_t local_pid;
if (tdb_reg && local_pid == sys_getpid())
return True;
/*
* try to open first without creating so we can determine
* if we need to init the data in the registry
*/
tdb_reg = tdb_open_log(lock_path("registry.tdb"), 0, TDB_DEFAULT, O_RDWR, 0600);
if ( !tdb_reg )
{
tdb_reg = tdb_open_log(lock_path("registry.tdb"), 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
if ( !tdb_reg ) {
DEBUG(0,("init_registry: Failed to open registry %s (%s)\n",
lock_path("registry.tdb"), strerror(errno) ));
return False;
}
DEBUG(10,("init_registry: Successfully created registry tdb\n"));
/* create the registry here */
if ( !init_registry_data( tdb_reg ) ) {
DEBUG(0,("init_registry: Failed to initiailize data in registry!\n"));
return False;
}
}
local_pid = sys_getpid();
return True;
}
/******************************************************************
Find a registry key handle and return a Registry_Key
*****************************************************************/
static Registry_Key *find_regkey_index_by_hnd(pipes_struct *p, POLICY_HND *hnd)
{
Registry_Key *regkey = NULL;
if(!find_policy_by_hnd(p,hnd,(void **)&regkey)) {
DEBUG(2,("find_regkey_index_by_hnd: Registry Key not found: "));
return NULL;
}
return regkey;
}
/******************************************************************
free() function for Registry_Key
*****************************************************************/
static void free_reg_info(void *ptr)
{
Registry_Key *info = (Registry_Key*)ptr;
DLIST_REMOVE(regkeys_list, info);
SAFE_FREE(info);
}
/*******************************************************************
Function for open a new registry handle and creating a handle
Note that P should be valid & hnd should already have space
*******************************************************************/
static BOOL open_registry_key(pipes_struct *p, POLICY_HND *hnd, char *name,
uint32 access_granted)
{
Registry_Key *regkey = NULL;
DEBUG(7,("open_registry_key: name = [%s]\n", name));
/* All registry keys **must** have a name of non-zero length */
if (!name || !*name )
return False;
if ((regkey=(Registry_Key*)malloc(sizeof(Registry_Key))) == NULL)
return False;
ZERO_STRUCTP( regkey );
DLIST_ADD( regkeys_list, regkey );
/* copy the name and obtain a handle */
fstrcpy( regkey->name, name );
DEBUG(7,("open_registry_key: exit\n"));
return create_policy_hnd( p, hnd, free_reg_info, regkey );
}
/*******************************************************************
Function for open a new registry handle and creating a handle
Note that P should be valid & hnd should already have space
*******************************************************************/
static BOOL close_registry_key(pipes_struct *p, POLICY_HND *hnd)
{
Registry_Key *regkey = find_regkey_index_by_hnd(p, hnd);
if ( !regkey ) {
DEBUG(2,("close_registry_key: Invalid handle (%s:%u:%u)\n", OUR_HANDLE(hnd)));
return False;
}
close_policy_hnd(p, hnd);
return True;
}
/********************************************************************
retrieve information about the subkeys
*******************************************************************/
static BOOL get_subkey_information( Registry_Key *key, uint32 *maxnum, uint32 *maxlen )
{
int num_subkeys, i;
uint32 max_len;
char *subkeys = NULL;
uint32 len;
char *s;
if ( !key )
return False;
num_subkeys = fetch_reg_keys( tdb_reg, key->name, &subkeys );
if ( num_subkeys == -1 )
return False;
/* find the longest string */
max_len = 0;
s = subkeys;
for ( i=0; i<num_subkeys; i++ ) {
len = strlen(s);
max_len = MAX(max_len, len);
s += len + 1;
}
*maxnum = num_subkeys;
*maxlen = max_len*2;
SAFE_FREE(subkeys);
return True;
}
/********************************************************************
retrieve information about the values. We don't store values
here. The registry tdb is intended to be a frontend to oether
Samba tdb's (such as ntdrivers.tdb).
*******************************************************************/
static BOOL get_value_information( Registry_Key *key, uint32 *maxnum,
uint32 *maxlen, uint32 *maxsize )
{
if ( !key )
return False;
/* Hard coded key names first */
/* nothing has valuies right now */
*maxnum = 0;
*maxlen = 0;
*maxsize = 0;
return True;
#if 0 /* JERRY */
/*
* FIXME!!! Need to add routines to look up values in other
* databases --jerry
*/
return False;
#endif
}
/********************************************************************
reg_close
********************************************************************/
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_registry_key(p, &q_u->pol))
return NT_STATUS_OBJECT_NAME_INVALID;
return NT_STATUS_OK;
}
/*******************************************************************
reg_reply_open
********************************************************************/
NTSTATUS _reg_open_hklm(pipes_struct *p, REG_Q_OPEN_HKLM *q_u, REG_R_OPEN_HKLM *r_u)
{
if (!open_registry_key(p, &r_u->pol, KEY_HKLM, 0x0))
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
return NT_STATUS_OK;
}
/*******************************************************************
reg_reply_open
********************************************************************/
NTSTATUS _reg_open_hku(pipes_struct *p, REG_Q_OPEN_HKU *q_u, REG_R_OPEN_HKU *r_u)
{
if (!open_registry_key(p, &r_u->pol, KEY_HKU, 0x0))
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;
pstring path;
int num_subkeys;
Registry_Key *key = find_regkey_index_by_hnd(p, &q_u->pol);
DEBUG(5,("reg_open_entry: Enter\n"));
if ( !key )
return NT_STATUS_INVALID_HANDLE;
rpcstr_pull(name,q_u->uni_name.buffer,sizeof(name),q_u->uni_name.uni_str_len*2,0);
/* store the full path in the regkey_list */
pstrcpy( path, key->name );
pstrcat( path, "\\" );
pstrcat( path, name );
DEBUG(5,("reg_open_entry: %s\n", path));
/* do a check on the name, here */
if ( (num_subkeys=fetch_reg_keys_count( tdb_reg, path )) == -1 )
return NT_STATUS_ACCESS_DENIED;
if (!open_registry_key(p, &pol, path, 0x0))
return NT_STATUS_TOO_MANY_SECRETS;
init_reg_r_open_entry(r_u, &pol, NT_STATUS_OK);
DEBUG(5,("reg_open_entry: Exitn"));
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;
char *value = NULL;
uint32 type = 0x1; /* key type: REG_SZ */
UNISTR2 *uni_key = NULL;
BUFFER2 *buf = NULL;
fstring name;
Registry_Key *key = find_regkey_index_by_hnd( p, &q_u->pol );
DEBUG(5,("_reg_info: Enter\n"));
if ( !key )
return NT_STATUS_INVALID_HANDLE;
DEBUG(7,("_reg_info: policy key name = [%s]\n", key->name));
rpcstr_pull(name, q_u->uni_type.buffer, sizeof(name), q_u->uni_type.uni_str_len*2, 0);
DEBUG(5,("reg_info: checking subkey: %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:
value = "LanmanNT";
break;
case ROLE_STANDALONE:
value = "ServerNT";
break;
case ROLE_DOMAIN_MEMBER:
value = "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, value, strlen(value)+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: Exit\n"));
return status;
}
/*****************************************************************************
Implementation of REG_QUERY_KEY
****************************************************************************/
NTSTATUS _reg_query_key(pipes_struct *p, REG_Q_QUERY_KEY *q_u, REG_R_QUERY_KEY *r_u)
{
NTSTATUS status = NT_STATUS_OK;
Registry_Key *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
DEBUG(5,("_reg_query_key: Enter\n"));
if ( !regkey )
return NT_STATUS_INVALID_HANDLE;
if ( !get_subkey_information( regkey, &r_u->num_subkeys, &r_u->max_subkeylen ) )
return NT_STATUS_ACCESS_DENIED;
if ( !get_value_information( regkey, &r_u->num_values, &r_u->max_valnamelen, &r_u->max_valbufsize ) )
return NT_STATUS_ACCESS_DENIED;
r_u->sec_desc = 0x00000078; /* size for key's sec_desc */
/* Win9x set this to 0x0 since it does not keep timestamps.
Doing the same here for simplicity --jerry */
ZERO_STRUCT(r_u->mod_time);
DEBUG(5,("_reg_query_key: Exit\n"));
return status;
}
/*****************************************************************************
Implementation of REG_UNKNOWN_1A
****************************************************************************/
NTSTATUS _reg_unknown_1a(pipes_struct *p, REG_Q_UNKNOWN_1A *q_u, REG_R_UNKNOWN_1A *r_u)
{
NTSTATUS status = NT_STATUS_OK;
Registry_Key *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
DEBUG(5,("_reg_unknown_1a: Enter\n"));
if ( !regkey )
return NT_STATUS_INVALID_HANDLE;
r_u->unknown = 0x00000005; /* seems to be consistent...no idea what it means */
DEBUG(5,("_reg_unknown_1a: Exit\n"));
return status;
}
/*****************************************************************************
Implementation of REG_ENUM_KEY
****************************************************************************/
NTSTATUS _reg_enum_key(pipes_struct *p, REG_Q_ENUM_KEY *q_u, REG_R_ENUM_KEY *r_u)
{
NTSTATUS status = NT_STATUS_OK;
Registry_Key *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
fstring subkey;
DEBUG(5,("_reg_enum_key: Enter\n"));
if ( !regkey )
return NT_STATUS_INVALID_HANDLE;
DEBUG(8,("_reg_enum_key: enumerating key [%s]\n", regkey->name));
if ( !fetch_reg_keys_specific( tdb_reg, regkey->name, subkey, q_u->key_index ) )
{
status = werror_to_ntstatus( WERR_NO_MORE_ITEMS );
goto done;
}
DEBUG(10,("_reg_enum_key: retrieved subkey named [%s]\n", subkey));
/* subkey has the string name now */
init_reg_r_enum_key( r_u, subkey, q_u->unknown_1, q_u->unknown_2 );
DEBUG(5,("_reg_enum_key: Exit\n"));
done:
return status;
}
/*******************************************************************
reg_shutdwon
********************************************************************/
#define SHUTDOWN_R_STRING "-r"
#define SHUTDOWN_F_STRING "-f"
NTSTATUS _reg_shutdown(pipes_struct *p, REG_Q_SHUTDOWN *q_u, REG_R_SHUTDOWN *r_u)
{
NTSTATUS status = NT_STATUS_OK;
pstring shutdown_script;
UNISTR2 unimsg = q_u->uni_msg;
pstring message;
pstring chkmsg;
fstring timeout;
fstring r;
fstring f;
/* message */
rpcstr_pull (message, unimsg.buffer, sizeof(message), unimsg.uni_str_len*2,0);
/* security check */
alpha_strcpy (chkmsg, message, NULL, sizeof(message));
/* timeout */
snprintf(timeout, sizeof(timeout), "%d", q_u->timeout);
/* reboot */
snprintf(r, sizeof(r), (q_u->flags & REG_REBOOT_ON_SHUTDOWN)?SHUTDOWN_R_STRING:"");
/* force */
snprintf(f, sizeof(f), (q_u->flags & REG_FORCE_SHUTDOWN)?SHUTDOWN_F_STRING:"");
pstrcpy(shutdown_script, lp_shutdown_script());
if(*shutdown_script) {
int shutdown_ret;
all_string_sub(shutdown_script, "%m", chkmsg, sizeof(shutdown_script));
all_string_sub(shutdown_script, "%t", timeout, sizeof(shutdown_script));
all_string_sub(shutdown_script, "%r", r, sizeof(shutdown_script));
all_string_sub(shutdown_script, "%f", f, sizeof(shutdown_script));
shutdown_ret = smbrun(shutdown_script,NULL);
DEBUG(3,("_reg_shutdown: Running the command `%s' gave %d\n",shutdown_script,shutdown_ret));
}
return status;
}
/*******************************************************************
reg_abort_shutdwon
********************************************************************/
NTSTATUS _reg_abort_shutdown(pipes_struct *p, REG_Q_ABORT_SHUTDOWN *q_u, REG_R_ABORT_SHUTDOWN *r_u)
{
NTSTATUS status = NT_STATUS_OK;
pstring abort_shutdown_script;
pstrcpy(abort_shutdown_script, lp_abort_shutdown_script());
if(*abort_shutdown_script) {
int abort_shutdown_ret;
abort_shutdown_ret = smbrun(abort_shutdown_script,NULL);
DEBUG(3,("_reg_abort_shutdown: Running the command `%s' gave %d\n",abort_shutdown_script,abort_shutdown_ret));
}
return status;
}