--- /dev/null
+/*
+ * 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) Jeremy Allison 2001.
+ * Copyright (C) Gerald Carter 2002-2005.
+ *
+ * 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"
+#include "regfio.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_RPC_SRV
+
+#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())
+
+static struct generic_mapping reg_generic_map =
+ { REG_KEY_READ, REG_KEY_WRITE, REG_KEY_EXECUTE, REG_KEY_ALL };
+
+
+/******************************************************************
+ free() function for REGISTRY_KEY
+ *****************************************************************/
+
+static void free_regkey_info(void *ptr)
+{
+ regkey_close_internal( (REGISTRY_KEY*)ptr );
+}
+
+/******************************************************************
+ 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 **)(void *)®key)) {
+ DEBUG(2,("find_regkey_index_by_hnd: Registry Key not found: "));
+ return NULL;
+ }
+
+ return regkey;
+}
+
+
+/*******************************************************************
+ Function for open a new registry handle and creating a handle
+ Note that P should be valid & hnd should already have space
+
+ When we open a key, we store the full path to the key as
+ HK[LM|U]\<key>\<key>\...
+ *******************************************************************/
+
+static WERROR open_registry_key( pipes_struct *p, POLICY_HND *hnd,
+ REGISTRY_KEY **keyinfo, REGISTRY_KEY *parent,
+ const char *subkeyname, uint32 access_desired )
+{
+ pstring keypath;
+ int path_len;
+ WERROR result = WERR_OK;
+
+ /* create a full registry path and strip any trailing '\'
+ characters */
+
+ pstr_sprintf( keypath, "%s%s%s",
+ parent ? parent->name : "",
+ parent ? "\\" : "",
+ subkeyname );
+
+ path_len = strlen( keypath );
+ if ( path_len && keypath[path_len-1] == '\\' )
+ keypath[path_len-1] = '\0';
+
+ /* now do the internal open */
+
+ result = regkey_open_internal( keyinfo, keypath, p->pipe_user.nt_user_token, access_desired );
+ if ( !W_ERROR_IS_OK(result) )
+ return result;
+
+ if ( !create_policy_hnd( p, hnd, free_regkey_info, *keyinfo ) ) {
+ result = WERR_BADFILE;
+ regkey_close_internal( *keyinfo );
+ }
+
+ return result;
+}
+
+/*******************************************************************
+ 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;
+ REGSUBKEY_CTR *subkeys;
+ uint32 len;
+
+ if ( !key )
+ return False;
+
+ if ( !(subkeys = TALLOC_ZERO_P( NULL, REGSUBKEY_CTR )) )
+ return False;
+
+ if ( fetch_reg_keys( key, subkeys ) == -1 )
+ return False;
+
+ /* find the longest string */
+
+ max_len = 0;
+ num_subkeys = regsubkey_ctr_numkeys( subkeys );
+
+ for ( i=0; i<num_subkeys; i++ ) {
+ len = strlen( regsubkey_ctr_specific_key(subkeys, i) );
+ max_len = MAX(max_len, len);
+ }
+
+ *maxnum = num_subkeys;
+ *maxlen = max_len*2;
+
+ TALLOC_FREE( subkeys );
+
+ return True;
+}
+
+/********************************************************************
+ retrieve information about the values.
+ *******************************************************************/
+
+static BOOL get_value_information( REGISTRY_KEY *key, uint32 *maxnum,
+ uint32 *maxlen, uint32 *maxsize )
+{
+ REGVAL_CTR *values;
+ REGISTRY_VALUE *val;
+ uint32 sizemax, lenmax;
+ int i, num_values;
+
+ if ( !key )
+ return False;
+
+ if ( !(values = TALLOC_ZERO_P( NULL, REGVAL_CTR )) )
+ return False;
+
+ if ( fetch_reg_values( key, values ) == -1 )
+ return False;
+
+ lenmax = sizemax = 0;
+ num_values = regval_ctr_numvals( values );
+
+ val = regval_ctr_specific_value( values, 0 );
+
+ for ( i=0; i<num_values && val; i++ )
+ {
+ lenmax = MAX(lenmax, val->valuename ? strlen(val->valuename)+1 : 0 );
+ sizemax = MAX(sizemax, val->size );
+
+ val = regval_ctr_specific_value( values, i );
+ }
+
+ *maxnum = num_values;
+ *maxlen = lenmax;
+ *maxsize = sizemax;
+
+ TALLOC_FREE( values );
+
+ return True;
+}
+
+
+/********************************************************************
+ reg_close
+ ********************************************************************/
+
+WERROR _reg_close(pipes_struct *p, REG_Q_CLOSE *q_u, REG_R_CLOSE *r_u)
+{
+ /* close the policy handle */
+
+ if (!close_registry_key(p, &q_u->pol))
+ return WERR_BADFID;
+
+ return WERR_OK;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_open_hklm(pipes_struct *p, REG_Q_OPEN_HIVE *q_u, REG_R_OPEN_HIVE *r_u)
+{
+ REGISTRY_KEY *keyinfo;
+
+ return open_registry_key( p, &r_u->pol, &keyinfo, NULL, KEY_HKLM, q_u->access );
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_open_hkpd(pipes_struct *p, REG_Q_OPEN_HIVE *q_u, REG_R_OPEN_HIVE *r_u)
+{
+ REGISTRY_KEY *keyinfo;
+
+ return open_registry_key( p, &r_u->pol, &keyinfo, NULL, KEY_HKPD, q_u->access );
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_open_hkpt(pipes_struct *p, REG_Q_OPEN_HIVE *q_u, REG_R_OPEN_HIVE *r_u)
+{
+ REGISTRY_KEY *keyinfo;
+
+ return open_registry_key( p, &r_u->pol, &keyinfo, NULL, KEY_HKPT, q_u->access );
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_open_hkcr(pipes_struct *p, REG_Q_OPEN_HIVE *q_u, REG_R_OPEN_HIVE *r_u)
+{
+ REGISTRY_KEY *keyinfo;
+
+ return open_registry_key( p, &r_u->pol, &keyinfo, NULL, KEY_HKCR, q_u->access );
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_open_hku(pipes_struct *p, REG_Q_OPEN_HIVE *q_u, REG_R_OPEN_HIVE *r_u)
+{
+ REGISTRY_KEY *keyinfo;
+
+ return open_registry_key( p, &r_u->pol, &keyinfo, NULL, KEY_HKU, q_u->access );
+}
+
+/*******************************************************************
+ reg_reply_open_entry
+ ********************************************************************/
+
+WERROR _reg_open_entry(pipes_struct *p, REG_Q_OPEN_ENTRY *q_u, REG_R_OPEN_ENTRY *r_u)
+{
+ fstring name;
+ REGISTRY_KEY *parent = find_regkey_index_by_hnd(p, &q_u->pol);
+ REGISTRY_KEY *newkey = NULL;
+ uint32 check_rights;
+
+ if ( !parent )
+ return WERR_BADFID;
+
+ rpcstr_pull( name, q_u->name.string->buffer, sizeof(name), q_u->name.string->uni_str_len*2, 0 );
+
+ /* check granted access first; what is the correct mask here? */
+
+ check_rights = ( SEC_RIGHTS_ENUM_SUBKEYS|
+ SEC_RIGHTS_CREATE_SUBKEY|
+ SEC_RIGHTS_QUERY_VALUE|
+ SEC_RIGHTS_SET_VALUE);
+
+ if ( !(parent->access_granted & check_rights) ) {
+ DEBUG(8,("Rights check failed, parent had %04x, check_rights %04x\n",parent->access_granted, check_rights));
+ return WERR_ACCESS_DENIED;
+ }
+
+ /*
+ * very crazy, but regedit.exe on Win2k will attempt to call
+ * REG_OPEN_ENTRY with a keyname of "". We should return a new
+ * (second) handle here on the key->name. regedt32.exe does
+ * not do this stupidity. --jerry
+ */
+
+ return open_registry_key( p, &r_u->handle, &newkey, parent, name, q_u->access );
+}
+
+/*******************************************************************
+ reg_reply_info
+ ********************************************************************/
+
+WERROR _reg_query_value(pipes_struct *p, REG_Q_QUERY_VALUE *q_u, REG_R_QUERY_VALUE *r_u)
+{
+ WERROR status = WERR_BADFILE;
+ fstring name;
+ REGISTRY_KEY *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
+ REGISTRY_VALUE *val = NULL;
+ REGVAL_CTR *regvals;
+ int i;
+
+ if ( !regkey )
+ return WERR_BADFID;
+
+ DEBUG(7,("_reg_info: policy key name = [%s]\n", regkey->name));
+ DEBUG(7,("_reg_info: policy key type = [%08x]\n", regkey->type));
+
+ rpcstr_pull(name, q_u->name.string->buffer, sizeof(name), q_u->name.string->uni_str_len*2, 0);
+
+ DEBUG(5,("_reg_info: looking up value: [%s]\n", name));
+
+ if ( !(regvals = TALLOC_ZERO_P( p->mem_ctx, REGVAL_CTR )) )
+ return WERR_NOMEM;
+
+ /* Handle QueryValue calls on HKEY_PERFORMANCE_DATA */
+ if(regkey->type == REG_KEY_HKPD)
+ {
+ if(strequal(name, "Global"))
+ {
+ uint32 outbuf_len;
+ prs_struct prs_hkpd;
+ prs_init(&prs_hkpd, q_u->bufsize, p->mem_ctx, MARSHALL);
+ status = reg_perfcount_get_hkpd(&prs_hkpd, q_u->bufsize, &outbuf_len, NULL);
+ regval_ctr_addvalue(regvals, "HKPD", REG_BINARY,
+ prs_hkpd.data_p, outbuf_len);
+ val = dup_registry_value(regval_ctr_specific_value(regvals, 0));
+ prs_mem_free(&prs_hkpd);
+ }
+ else if(strequal(name, "Counter 009"))
+ {
+ uint32 base_index;
+ uint32 buffer_size;
+ char *buffer;
+
+ buffer = NULL;
+ base_index = reg_perfcount_get_base_index();
+ buffer_size = reg_perfcount_get_counter_names(base_index, &buffer);
+ regval_ctr_addvalue(regvals, "Counter 009",
+ REG_MULTI_SZ, buffer, buffer_size);
+
+ val = dup_registry_value(regval_ctr_specific_value(regvals, 0));
+
+ if(buffer_size > 0)
+ {
+ SAFE_FREE(buffer);
+ status = WERR_OK;
+ }
+ }
+ else if(strequal(name, "Explain 009"))
+ {
+ uint32 base_index;
+ uint32 buffer_size;
+ char *buffer;
+
+ buffer = NULL;
+ base_index = reg_perfcount_get_base_index();
+ buffer_size = reg_perfcount_get_counter_help(base_index, &buffer);
+ regval_ctr_addvalue(regvals, "Explain 009",
+ REG_MULTI_SZ, buffer, buffer_size);
+
+ val = dup_registry_value(regval_ctr_specific_value(regvals, 0));
+
+ if(buffer_size > 0)
+ {
+ SAFE_FREE(buffer);
+ status = WERR_OK;
+ }
+ }
+ else if(isdigit(name[0]))
+ {
+ /* we probably have a request for a specific object here */
+ uint32 outbuf_len;
+ prs_struct prs_hkpd;
+ prs_init(&prs_hkpd, q_u->bufsize, p->mem_ctx, MARSHALL);
+ status = reg_perfcount_get_hkpd(&prs_hkpd, q_u->bufsize, &outbuf_len, name);
+ regval_ctr_addvalue(regvals, "HKPD", REG_BINARY,
+ prs_hkpd.data_p, outbuf_len);
+
+ val = dup_registry_value(regval_ctr_specific_value(regvals, 0));
+ prs_mem_free(&prs_hkpd);
+ }
+ else
+ {
+ DEBUG(3,("Unsupported key name [%s] for HKPD.\n", name));
+ return WERR_BADFILE;
+ }
+ }
+ /* HKPT calls can be handled out of reg_dynamic.c with the hkpt_params handler */
+ else
+ {
+ for ( i=0; fetch_reg_values_specific(regkey, &val, i); i++ )
+ {
+ DEBUG(10,("_reg_info: Testing value [%s]\n", val->valuename));
+ if ( strequal( val->valuename, name ) ) {
+ DEBUG(10,("_reg_info: Found match for value [%s]\n", name));
+ status = WERR_OK;
+ break;
+ }
+
+ free_registry_value( val );
+ }
+ }
+
+ init_reg_r_query_value(q_u->ptr_buf, r_u, val, status);
+
+ TALLOC_FREE( regvals );
+ free_registry_value( val );
+
+ return status;
+}
+
+/*****************************************************************************
+ Implementation of REG_QUERY_KEY
+ ****************************************************************************/
+
+WERROR _reg_query_key(pipes_struct *p, REG_Q_QUERY_KEY *q_u, REG_R_QUERY_KEY *r_u)
+{
+ WERROR status = WERR_OK;
+ REGISTRY_KEY *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
+
+ if ( !regkey )
+ return WERR_BADFID;
+
+ if ( !get_subkey_information( regkey, &r_u->num_subkeys, &r_u->max_subkeylen ) ) {
+ DEBUG(0,("_reg_query_key: get_subkey_information() failed!\n"));
+ return WERR_ACCESS_DENIED;
+ }
+
+ if ( !get_value_information( regkey, &r_u->num_values, &r_u->max_valnamelen, &r_u->max_valbufsize ) ) {
+ DEBUG(0,("_reg_query_key: get_value_information() failed!\n"));
+ return WERR_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);
+
+ return status;
+}
+
+
+/*****************************************************************************
+ Implementation of REG_GETVERSION
+ ****************************************************************************/
+
+WERROR _reg_getversion(pipes_struct *p, REG_Q_GETVERSION *q_u, REG_R_GETVERSION *r_u)
+{
+ WERROR status = WERR_OK;
+ REGISTRY_KEY *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
+
+ if ( !regkey )
+ return WERR_BADFID;
+
+ r_u->win_version = 0x00000005; /* Windows 2000 registry API version */
+
+ return status;
+}
+
+
+/*****************************************************************************
+ Implementation of REG_ENUM_KEY
+ ****************************************************************************/
+
+WERROR _reg_enum_key(pipes_struct *p, REG_Q_ENUM_KEY *q_u, REG_R_ENUM_KEY *r_u)
+{
+ WERROR status = WERR_OK;
+ REGISTRY_KEY *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
+ char *subkey = NULL;
+
+
+ if ( !regkey )
+ return WERR_BADFID;
+
+ DEBUG(8,("_reg_enum_key: enumerating key [%s]\n", regkey->name));
+
+ if ( !fetch_reg_keys_specific( regkey, &subkey, q_u->key_index ) )
+ {
+ status = 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 );
+
+done:
+ SAFE_FREE( subkey );
+ return status;
+}
+
+/*****************************************************************************
+ Implementation of REG_ENUM_VALUE
+ ****************************************************************************/
+
+WERROR _reg_enum_value(pipes_struct *p, REG_Q_ENUM_VALUE *q_u, REG_R_ENUM_VALUE *r_u)
+{
+ WERROR status = WERR_OK;
+ REGISTRY_KEY *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
+ REGISTRY_VALUE *val;
+
+
+ if ( !regkey )
+ return WERR_BADFID;
+
+ DEBUG(8,("_reg_enum_value: enumerating values for key [%s]\n", regkey->name));
+
+ if ( !fetch_reg_values_specific( regkey, &val, q_u->val_index ) ) {
+ status = WERR_NO_MORE_ITEMS;
+ goto done;
+ }
+
+#if 0 /* JERRY TEST CODE */
+ if ( val->type == REG_MULTI_SZ ) {
+ char **str;
+ int num_strings = regval_convert_multi_sz( (uint16*)regval_data_p(val), regval_size(val), &str );
+ uint16 *buffer;
+ size_t buf_size;
+
+
+ if ( num_strings )
+ buf_size = regval_build_multi_sz( str, &buffer );
+
+ TALLOC_FREE( str );
+ TALLOC_FREE( buffer );
+ }
+#endif
+
+ DEBUG(10,("_reg_enum_value: retrieved value named [%s]\n", val->valuename));
+
+ /* subkey has the string name now */
+
+ init_reg_r_enum_val( r_u, val );
+
+done:
+ free_registry_value( val );
+
+ return status;
+}
+
+
+/*******************************************************************
+ reg_shutdwon
+ ********************************************************************/
+
+WERROR _reg_shutdown(pipes_struct *p, REG_Q_SHUTDOWN *q_u, REG_R_SHUTDOWN *r_u)
+{
+ REG_Q_SHUTDOWN_EX q_u_ex;
+ REG_R_SHUTDOWN_EX r_u_ex;
+
+ /* copy fields (including stealing memory) */
+
+ q_u_ex.server = q_u->server;
+ q_u_ex.message = q_u->message;
+ q_u_ex.timeout = q_u->timeout;
+ q_u_ex.force = q_u->force;
+ q_u_ex.reboot = q_u->reboot;
+ q_u_ex.reason = 0x0; /* don't care for now */
+
+ /* thunk down to _reg_shutdown_ex() (just returns a status) */
+
+ return _reg_shutdown_ex( p, &q_u_ex, &r_u_ex );
+}
+
+/*******************************************************************
+ reg_shutdown_ex
+ ********************************************************************/
+
+#define SHUTDOWN_R_STRING "-r"
+#define SHUTDOWN_F_STRING "-f"
+
+
+WERROR _reg_shutdown_ex(pipes_struct *p, REG_Q_SHUTDOWN_EX *q_u, REG_R_SHUTDOWN_EX *r_u)
+{
+ pstring shutdown_script;
+ pstring message;
+ pstring chkmsg;
+ fstring timeout;
+ fstring reason;
+ fstring r;
+ fstring f;
+ int ret;
+ BOOL can_shutdown;
+
+
+ pstrcpy(shutdown_script, lp_shutdown_script());
+
+ if ( !*shutdown_script )
+ return WERR_ACCESS_DENIED;
+
+ /* pull the message string and perform necessary sanity checks on it */
+
+ pstrcpy( message, "" );
+ if ( q_u->message ) {
+ UNISTR2 *msg_string = q_u->message->string;
+
+ rpcstr_pull( message, msg_string->buffer, sizeof(message), msg_string->uni_str_len*2, 0 );
+ }
+ alpha_strcpy (chkmsg, message, NULL, sizeof(message));
+
+ fstr_sprintf(timeout, "%d", q_u->timeout);
+ fstr_sprintf(r, (q_u->reboot) ? SHUTDOWN_R_STRING : "");
+ fstr_sprintf(f, (q_u->force) ? SHUTDOWN_F_STRING : "");
+ fstr_sprintf( reason, "%d", q_u->reason );
+
+ all_string_sub( shutdown_script, "%z", 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) );
+ all_string_sub( shutdown_script, "%x", reason, sizeof(shutdown_script) );
+
+ can_shutdown = user_has_privileges( p->pipe_user.nt_user_token, &se_remote_shutdown );
+
+ /* IF someone has privs, run the shutdown script as root. OTHERWISE run it as not root
+ Take the error return from the script and provide it as the Windows return code. */
+
+ /********** BEGIN SeRemoteShutdownPrivilege BLOCK **********/
+
+ if ( can_shutdown )
+ become_root();
+
+ ret = smbrun( shutdown_script, NULL );
+
+ if ( can_shutdown )
+ unbecome_root();
+
+ /********** END SeRemoteShutdownPrivilege BLOCK **********/
+
+ DEBUG(3,("_reg_shutdown_ex: Running the command `%s' gave %d\n",
+ shutdown_script, ret));
+
+
+ return (ret == 0) ? WERR_OK : WERR_ACCESS_DENIED;
+}
+
+
+
+
+/*******************************************************************
+ reg_abort_shutdwon
+ ********************************************************************/
+
+WERROR _reg_abort_shutdown(pipes_struct *p, REG_Q_ABORT_SHUTDOWN *q_u, REG_R_ABORT_SHUTDOWN *r_u)
+{
+ pstring abort_shutdown_script;
+ int ret;
+ BOOL can_shutdown;
+
+ pstrcpy(abort_shutdown_script, lp_abort_shutdown_script());
+
+ if ( !*abort_shutdown_script )
+ return WERR_ACCESS_DENIED;
+
+ can_shutdown = user_has_privileges( p->pipe_user.nt_user_token, &se_remote_shutdown );
+
+ /********** BEGIN SeRemoteShutdownPrivilege BLOCK **********/
+
+ if ( can_shutdown )
+ become_root();
+
+ ret = smbrun( abort_shutdown_script, NULL );
+
+ if ( can_shutdown )
+ unbecome_root();
+
+ /********** END SeRemoteShutdownPrivilege BLOCK **********/
+
+ DEBUG(3,("_reg_abort_shutdown: Running the command `%s' gave %d\n",
+ abort_shutdown_script, ret));
+
+
+ return (ret == 0) ? WERR_OK : WERR_ACCESS_DENIED;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+static int validate_reg_filename( pstring fname )
+{
+ char *p;
+ int num_services = lp_numservices();
+ int snum;
+ pstring share_path;
+ pstring unix_fname;
+
+ /* convert to a unix path, stripping the C:\ along the way */
+
+ if ( !(p = valid_share_pathname( fname ) ))
+ return -1;
+
+ /* has to exist within a valid file share */
+
+ for ( snum=0; snum<num_services; snum++ ) {
+
+ if ( !lp_snum_ok(snum) || lp_print_ok(snum) )
+ continue;
+
+ pstrcpy( share_path, lp_pathname(snum) );
+
+ /* make sure we have a path (e.g. [homes] ) */
+
+ if ( strlen( share_path ) == 0 )
+ continue;
+
+ if ( strncmp( share_path, p, strlen( share_path )) == 0 )
+ break;
+ }
+
+ /* p and fname are overlapping memory so copy out and back in again */
+
+ pstrcpy( unix_fname, p );
+ pstrcpy( fname, unix_fname );
+
+ return (snum < num_services) ? snum : -1;
+}
+
+/*******************************************************************
+ Note: topkeypat is the *full* path that this *key will be
+ loaded into (including the name of the key)
+ ********************************************************************/
+
+static WERROR reg_load_tree( REGF_FILE *regfile, const char *topkeypath,
+ REGF_NK_REC *key )
+{
+ REGF_NK_REC *subkey;
+ REGISTRY_KEY registry_key;
+ REGVAL_CTR *values;
+ REGSUBKEY_CTR *subkeys;
+ int i;
+ pstring path;
+ WERROR result = WERR_OK;
+
+ /* initialize the REGISTRY_KEY structure */
+
+ if ( !(registry_key.hook = reghook_cache_find(topkeypath)) ) {
+ DEBUG(0,("reg_load_tree: Failed to assigned a REGISTRY_HOOK to [%s]\n",
+ topkeypath ));
+ return WERR_BADFILE;
+ }
+ pstrcpy( registry_key.name, topkeypath );
+
+ /* now start parsing the values and subkeys */
+
+ if ( !(subkeys = TALLOC_ZERO_P( regfile->mem_ctx, REGSUBKEY_CTR )) )
+ return WERR_NOMEM;
+
+ if ( !(values = TALLOC_ZERO_P( subkeys, REGVAL_CTR )) )
+ return WERR_NOMEM;
+
+ /* copy values into the REGVAL_CTR */
+
+ for ( i=0; i<key->num_values; i++ ) {
+ regval_ctr_addvalue( values, key->values[i].valuename, key->values[i].type,
+ (char*)key->values[i].data, (key->values[i].data_size & ~VK_DATA_IN_OFFSET) );
+ }
+
+ /* copy subkeys into the REGSUBKEY_CTR */
+
+ key->subkey_index = 0;
+ while ( (subkey = regfio_fetch_subkey( regfile, key )) ) {
+ regsubkey_ctr_addkey( subkeys, subkey->keyname );
+ }
+
+ /* write this key and values out */
+
+ if ( !store_reg_values( ®istry_key, values )
+ || !store_reg_keys( ®istry_key, subkeys ) )
+ {
+ DEBUG(0,("reg_load_tree: Failed to load %s!\n", topkeypath));
+ result = WERR_REG_IO_FAILURE;
+ }
+
+ TALLOC_FREE( subkeys );
+
+ if ( !W_ERROR_IS_OK(result) )
+ return result;
+
+ /* now continue to load each subkey registry tree */
+
+ key->subkey_index = 0;
+ while ( (subkey = regfio_fetch_subkey( regfile, key )) ) {
+ pstr_sprintf( path, "%s%s%s", topkeypath, "\\", subkey->keyname );
+ result = reg_load_tree( regfile, path, subkey );
+ if ( !W_ERROR_IS_OK(result) )
+ break;
+ }
+
+ return result;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+static WERROR restore_registry_key ( REGISTRY_KEY *krecord, const char *fname )
+{
+ REGF_FILE *regfile;
+ REGF_NK_REC *rootkey;
+ WERROR result;
+
+ /* open the registry file....fail if the file already exists */
+
+ if ( !(regfile = regfio_open( fname, (O_RDONLY), 0 )) ) {
+ DEBUG(0,("backup_registry_key: failed to open \"%s\" (%s)\n",
+ fname, strerror(errno) ));
+ return ( ntstatus_to_werror(map_nt_error_from_unix( errno )) );
+ }
+
+ /* get the rootkey from the regf file and then load the tree
+ via recursive calls */
+
+ if ( !(rootkey = regfio_rootkey( regfile )) )
+ return WERR_REG_FILE_INVALID;
+
+ result = reg_load_tree( regfile, krecord->name, rootkey );
+
+ /* cleanup */
+
+ regfio_close( regfile );
+
+ return result;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_restore_key(pipes_struct *p, REG_Q_RESTORE_KEY *q_u, REG_R_RESTORE_KEY *r_u)
+{
+ REGISTRY_KEY *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
+ pstring filename;
+ int snum;
+
+ if ( !regkey )
+ return WERR_BADFID;
+
+ rpcstr_pull(filename, q_u->filename.string->buffer, sizeof(filename), q_u->filename.string->uni_str_len*2, STR_TERMINATE);
+
+ DEBUG(8,("_reg_restore_key: verifying restore of key [%s] from \"%s\"\n", regkey->name, filename));
+
+ if ( (snum = validate_reg_filename( filename )) == -1 )
+ return WERR_OBJECT_PATH_INVALID;
+
+ /* user must posses SeRestorePrivilege for this this proceed */
+
+ if ( !user_has_privileges( p->pipe_user.nt_user_token, &se_restore ) )
+ return WERR_ACCESS_DENIED;
+
+ DEBUG(2,("_reg_restore_key: Restoring [%s] from %s in share %s\n", regkey->name, filename, lp_servicename(snum) ));
+
+ return restore_registry_key( regkey, filename );
+}
+
+/********************************************************************
+********************************************************************/
+
+static WERROR reg_write_tree( REGF_FILE *regfile, const char *keypath,
+ REGF_NK_REC *parent, SEC_DESC *sec_desc )
+{
+ REGF_NK_REC *key;
+ REGVAL_CTR *values;
+ REGSUBKEY_CTR *subkeys;
+ int i, num_subkeys;
+ pstring key_tmp;
+ char *keyname, *parentpath;
+ pstring subkeypath;
+ char *subkeyname;
+ REGISTRY_KEY registry_key;
+ WERROR result = WERR_OK;
+
+ if ( !regfile )
+ return WERR_GENERAL_FAILURE;
+
+ if ( !keypath )
+ return WERR_OBJECT_PATH_INVALID;
+
+ /* split up the registry key path */
+
+ pstrcpy( key_tmp, keypath );
+ if ( !reg_split_key( key_tmp, &parentpath, &keyname ) )
+ return WERR_OBJECT_PATH_INVALID;
+
+ if ( !keyname )
+ keyname = parentpath;
+
+ /* we need a REGISTRY_KEY object here to enumerate subkeys and values */
+
+ ZERO_STRUCT( registry_key );
+ pstrcpy( registry_key.name, keypath );
+ if ( !(registry_key.hook = reghook_cache_find( registry_key.name )) )
+ return WERR_BADFILE;
+
+
+ /* lookup the values and subkeys */
+
+ if ( !(subkeys = TALLOC_ZERO_P( regfile->mem_ctx, REGSUBKEY_CTR )) )
+ return WERR_NOMEM;
+
+ if ( !(values = TALLOC_ZERO_P( subkeys, REGVAL_CTR )) )
+ return WERR_NOMEM;
+
+ fetch_reg_keys( ®istry_key, subkeys );
+ fetch_reg_values( ®istry_key, values );
+
+ /* write out this key */
+
+ if ( !(key = regfio_write_key( regfile, keyname, values, subkeys, sec_desc, parent )) ) {
+ result = WERR_CAN_NOT_COMPLETE;
+ goto done;
+ }
+
+ /* write each one of the subkeys out */
+
+ num_subkeys = regsubkey_ctr_numkeys( subkeys );
+ for ( i=0; i<num_subkeys; i++ ) {
+ subkeyname = regsubkey_ctr_specific_key( subkeys, i );
+ pstr_sprintf( subkeypath, "%s\\%s", keypath, subkeyname );
+ result = reg_write_tree( regfile, subkeypath, key, sec_desc );
+ if ( !W_ERROR_IS_OK(result) )
+ goto done;
+ }
+
+ DEBUG(6,("reg_write_tree: wrote key [%s]\n", keypath ));
+
+done:
+ TALLOC_FREE( subkeys );
+
+ return result;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+static WERROR make_default_reg_sd( TALLOC_CTX *ctx, SEC_DESC **psd )
+{
+ DOM_SID adm_sid, owner_sid;
+ SEC_ACE ace[2]; /* at most 2 entries */
+ SEC_ACCESS mask;
+ SEC_ACL *psa = NULL;
+ size_t sd_size;
+
+ /* set the owner to BUILTIN\Administrator */
+
+ sid_copy(&owner_sid, &global_sid_Builtin);
+ sid_append_rid(&owner_sid, DOMAIN_USER_RID_ADMIN );
+
+
+ /* basic access for Everyone */
+
+ init_sec_access(&mask, reg_generic_map.generic_execute | reg_generic_map.generic_read );
+ init_sec_ace(&ace[0], &global_sid_World, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
+
+ /* add Full Access 'BUILTIN\Administrators' */
+
+ init_sec_access(&mask, reg_generic_map.generic_all);
+ sid_copy(&adm_sid, &global_sid_Builtin);
+ sid_append_rid(&adm_sid, BUILTIN_ALIAS_RID_ADMINS);
+ init_sec_ace(&ace[1], &adm_sid, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
+
+ /* create the security descriptor */
+
+ if ((psa = make_sec_acl(ctx, NT4_ACL_REVISION, 2, ace)) == NULL)
+ return WERR_NOMEM;
+
+ if ((*psd = make_sec_desc(ctx, SEC_DESC_REVISION, SEC_DESC_SELF_RELATIVE, &owner_sid, NULL, NULL, psa, &sd_size)) == NULL)
+ return WERR_NOMEM;
+
+ return WERR_OK;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+static WERROR backup_registry_key ( REGISTRY_KEY *krecord, const char *fname )
+{
+ REGF_FILE *regfile;
+ WERROR result;
+ SEC_DESC *sd = NULL;
+
+ /* open the registry file....fail if the file already exists */
+
+ if ( !(regfile = regfio_open( fname, (O_RDWR|O_CREAT|O_EXCL), (S_IREAD|S_IWRITE) )) ) {
+ DEBUG(0,("backup_registry_key: failed to open \"%s\" (%s)\n",
+ fname, strerror(errno) ));
+ return ( ntstatus_to_werror(map_nt_error_from_unix( errno )) );
+ }
+
+ if ( !W_ERROR_IS_OK(result = make_default_reg_sd( regfile->mem_ctx, &sd )) ) {
+ regfio_close( regfile );
+ return result;
+ }
+
+ /* write the registry tree to the file */
+
+ result = reg_write_tree( regfile, krecord->name, NULL, sd );
+
+ /* cleanup */
+
+ regfio_close( regfile );
+
+ return result;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_save_key(pipes_struct *p, REG_Q_SAVE_KEY *q_u, REG_R_SAVE_KEY *r_u)
+{
+ REGISTRY_KEY *regkey = find_regkey_index_by_hnd( p, &q_u->pol );
+ pstring filename;
+ int snum;
+
+ if ( !regkey )
+ return WERR_BADFID;
+
+ rpcstr_pull(filename, q_u->filename.string->buffer, sizeof(filename), q_u->filename.string->uni_str_len*2, STR_TERMINATE);
+
+ DEBUG(8,("_reg_save_key: verifying backup of key [%s] to \"%s\"\n", regkey->name, filename));
+
+ if ( (snum = validate_reg_filename( filename )) == -1 )
+ return WERR_OBJECT_PATH_INVALID;
+
+ DEBUG(2,("_reg_save_key: Saving [%s] to %s in share %s\n", regkey->name, filename, lp_servicename(snum) ));
+
+ return backup_registry_key( regkey, filename );
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_create_key_ex(pipes_struct *p, REG_Q_CREATE_KEY_EX *q_u, REG_R_CREATE_KEY_EX *r_u)
+{
+ REGISTRY_KEY *parent = find_regkey_index_by_hnd(p, &q_u->handle);
+ REGISTRY_KEY *newparentinfo, *keyinfo;
+ POLICY_HND newparent_handle;
+ REGSUBKEY_CTR *subkeys;
+ BOOL write_result;
+ pstring name;
+ WERROR result;
+
+ if ( !parent )
+ return WERR_BADFID;
+
+ rpcstr_pull( name, q_u->name.string->buffer, sizeof(name), q_u->name.string->uni_str_len*2, 0 );
+
+ /* ok. Here's what we do. */
+
+ if ( strrchr( name, '\\' ) ) {
+ pstring newkeyname;
+ char *ptr;
+
+ /* (1) check for enumerate rights on the parent handle. CLients can try
+ create things like 'SOFTWARE\Samba' on the HKLM handle.
+ (2) open the path to the child parent key if necessary */
+
+ if ( !(parent->access_granted & SEC_RIGHTS_ENUM_SUBKEYS) )
+ return WERR_ACCESS_DENIED;
+
+ pstrcpy( newkeyname, name );
+ ptr = strrchr( newkeyname, '\\' );
+ *ptr = '\0';
+
+ result = open_registry_key( p, &newparent_handle, &newparentinfo,
+ parent, newkeyname, (REG_KEY_READ|REG_KEY_WRITE) );
+
+ if ( !W_ERROR_IS_OK(result) )
+ return result;
+
+ /* copy the new key name (just the lower most keyname) */
+
+ pstrcpy( name, ptr+1 );
+ }
+ else {
+ /* use the existing open key information */
+ newparentinfo = parent;
+ memcpy( &newparent_handle, &q_u->handle, sizeof(POLICY_HND) );
+ }
+
+ /* (3) check for create subkey rights on the correct parent */
+
+ if ( !(newparentinfo->access_granted & SEC_RIGHTS_CREATE_SUBKEY) ) {
+ result = WERR_ACCESS_DENIED;
+ goto done;
+ }
+
+ if ( !(subkeys = TALLOC_ZERO_P( p->mem_ctx, REGSUBKEY_CTR )) ) {
+ result = WERR_NOMEM;
+ goto done;
+ }
+
+ /* (4) lookup the current keys and add the new one */
+
+ fetch_reg_keys( newparentinfo, subkeys );
+ regsubkey_ctr_addkey( subkeys, name );
+
+ /* now write to the registry backend */
+
+ write_result = store_reg_keys( newparentinfo, subkeys );
+
+ TALLOC_FREE( subkeys );
+
+ if ( !write_result )
+ return WERR_REG_IO_FAILURE;
+
+ /* (5) open the new key and return the handle. Note that it is probably
+ not correct to grant full access on this open handle. */
+
+ result = open_registry_key( p, &r_u->handle, &keyinfo, newparentinfo, name, REG_KEY_READ );
+ keyinfo->access_granted = REG_KEY_ALL;
+
+done:
+ /* close any intermediate key handles */
+
+ if ( newparentinfo != parent )
+ close_registry_key( p, &newparent_handle );
+
+ return result;
+}
+
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_set_value(pipes_struct *p, REG_Q_SET_VALUE *q_u, REG_R_SET_VALUE *r_u)
+{
+ REGISTRY_KEY *key = find_regkey_index_by_hnd(p, &q_u->handle);
+ REGVAL_CTR *values;
+ BOOL write_result;
+ fstring valuename;
+
+ if ( !key )
+ return WERR_BADFID;
+
+ /* access checks first */
+
+ if ( !(key->access_granted & SEC_RIGHTS_SET_VALUE) )
+ return WERR_ACCESS_DENIED;
+
+ rpcstr_pull( valuename, q_u->name.string->buffer, sizeof(valuename), q_u->name.string->uni_str_len*2, 0 );
+
+ /* verify the name */
+
+ if ( !*valuename )
+ return WERR_INVALID_PARAM;
+
+ DEBUG(8,("_reg_set_value: Setting value for [%s:%s]\n", key->name, valuename));
+
+ if ( !(values = TALLOC_ZERO_P( p->mem_ctx, REGVAL_CTR )) )
+ return WERR_NOMEM;
+
+ /* lookup the current values and add the new one */
+
+ fetch_reg_values( key, values );
+
+ regval_ctr_addvalue( values, valuename, q_u->type, (char*)q_u->value.buffer, q_u->value.buf_len );
+
+ /* now write to the registry backend */
+
+ write_result = store_reg_values( key, values );
+
+ TALLOC_FREE( values );
+
+ if ( !write_result )
+ return WERR_REG_IO_FAILURE;
+
+ return WERR_OK;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_delete_key(pipes_struct *p, REG_Q_DELETE_KEY *q_u, REG_R_DELETE_KEY *r_u)
+{
+ REGISTRY_KEY *parent = find_regkey_index_by_hnd(p, &q_u->handle);
+ REGISTRY_KEY *newparentinfo;
+ POLICY_HND newparent_handle;
+ REGSUBKEY_CTR *subkeys;
+ BOOL write_result;
+ pstring name;
+ WERROR result;
+
+ if ( !parent )
+ return WERR_BADFID;
+
+ /* MSDN says parent the handle must have been opened with DELETE access */
+
+ /* (1) check for delete rights on the parent */
+
+ if ( !(parent->access_granted & STD_RIGHT_DELETE_ACCESS) ) {
+ result = WERR_ACCESS_DENIED;
+ goto done;
+ }
+
+ rpcstr_pull( name, q_u->name.string->buffer, sizeof(name), q_u->name.string->uni_str_len*2, 0 );
+
+ /* ok. Here's what we do. */
+
+ if ( strrchr( name, '\\' ) ) {
+ pstring newkeyname;
+ char *ptr;
+
+ /* (2) open the path to the child parent key if necessary */
+ /* split the registry path and save the subkeyname */
+
+ pstrcpy( newkeyname, name );
+ ptr = strrchr( newkeyname, '\\' );
+ *ptr = '\0';
+ pstrcpy( name, ptr+1 );
+
+ result = open_registry_key( p, &newparent_handle, &newparentinfo, parent, newkeyname, (REG_KEY_READ|REG_KEY_WRITE) );
+ if ( !W_ERROR_IS_OK(result) )
+ return result;
+ }
+ else {
+ /* use the existing open key information */
+ newparentinfo = parent;
+ }
+
+ if ( !(subkeys = TALLOC_ZERO_P( p->mem_ctx, REGSUBKEY_CTR )) ) {
+ result = WERR_NOMEM;
+ goto done;
+ }
+
+ /* lookup the current keys and delete the new one */
+
+ fetch_reg_keys( newparentinfo, subkeys );
+
+ regsubkey_ctr_delkey( subkeys, name );
+
+ /* now write to the registry backend */
+
+ write_result = store_reg_keys( newparentinfo, subkeys );
+
+ TALLOC_FREE( subkeys );
+
+ result = write_result ? WERR_OK : WERR_REG_IO_FAILURE;
+
+done:
+ /* close any intermediate key handles */
+
+ if ( newparentinfo != parent )
+ close_registry_key( p, &newparent_handle );
+
+ return result;
+}
+
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_delete_value(pipes_struct *p, REG_Q_DELETE_VALUE *q_u, REG_R_DELETE_VALUE *r_u)
+{
+ REGISTRY_KEY *key = find_regkey_index_by_hnd(p, &q_u->handle);
+ REGVAL_CTR *values;
+ BOOL write_result;
+ fstring valuename;
+
+ if ( !key )
+ return WERR_BADFID;
+
+ /* access checks first */
+
+ if ( !(key->access_granted & SEC_RIGHTS_SET_VALUE) )
+ return WERR_ACCESS_DENIED;
+
+ rpcstr_pull( valuename, q_u->name.string->buffer, sizeof(valuename), q_u->name.string->uni_str_len*2, 0 );
+
+ if ( !*valuename )
+ return WERR_INVALID_PARAM;
+
+ DEBUG(8,("_reg_delete_value: Setting value for [%s:%s]\n", key->name, valuename));
+
+ if ( !(values = TALLOC_ZERO_P( p->mem_ctx, REGVAL_CTR )) )
+ return WERR_NOMEM;
+
+ /* lookup the current values and add the new one */
+
+ fetch_reg_values( key, values );
+
+ regval_ctr_delvalue( values, valuename );
+
+ /* now write to the registry backend */
+
+ write_result = store_reg_values( key, values );
+
+ TALLOC_FREE( values );
+
+ if ( !write_result )
+ return WERR_REG_IO_FAILURE;
+
+ return WERR_OK;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_get_key_sec(pipes_struct *p, REG_Q_GET_KEY_SEC *q_u, REG_R_GET_KEY_SEC *r_u)
+{
+ REGISTRY_KEY *key = find_regkey_index_by_hnd(p, &q_u->handle);
+
+ if ( !key )
+ return WERR_BADFID;
+
+ /* access checks first */
+
+ if ( !(key->access_granted & STD_RIGHT_READ_CONTROL_ACCESS) )
+ return WERR_ACCESS_DENIED;
+
+ return WERR_ACCESS_DENIED;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+WERROR _reg_set_key_sec(pipes_struct *p, REG_Q_SET_KEY_SEC *q_u, REG_R_SET_KEY_SEC *r_u)
+{
+ REGISTRY_KEY *key = find_regkey_index_by_hnd(p, &q_u->handle);
+
+ if ( !key )
+ return WERR_BADFID;
+
+ /* access checks first */
+
+ if ( !(key->access_granted & STD_RIGHT_WRITE_DAC_ACCESS) )
+ return WERR_ACCESS_DENIED;
+
+ return WERR_ACCESS_DENIED;
+}
projects / samba / blobdiff