/* * 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. * * 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 REGSTR_PRODUCTTYPE "ProductType" #define REG_PT_WINNT "WinNT" #define REG_PT_LANMANNT "LanmanNT" #define REG_PT_SERVERNT "ServerNT" #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 REGISTRY_KEY *regkeys_list; /****************************************************************** free() function for REGISTRY_KEY *****************************************************************/ static void free_regkey_info(void *ptr) { REGISTRY_KEY *info = (REGISTRY_KEY*)ptr; DLIST_REMOVE(regkeys_list, info); SAFE_FREE(info); } /****************************************************************** 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 **)®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 NTSTATUS open_registry_key(pipes_struct *p, POLICY_HND *hnd, REGISTRY_KEY *parent, const char *subkeyname, uint32 access_granted ) { REGISTRY_KEY *regkey = NULL; NTSTATUS result = NT_STATUS_OK; REGSUBKEY_CTR subkeys; pstring subkeyname2; int subkey_len; DEBUG(7,("open_registry_key: name = [%s][%s]\n", parent ? parent->name : "NULL", subkeyname)); /* strip any trailing '\'s */ pstrcpy( subkeyname2, subkeyname ); subkey_len = strlen ( subkeyname2 ); if ( subkey_len && subkeyname2[subkey_len-1] == '\\' ) subkeyname2[subkey_len-1] = '\0'; if ((regkey=(REGISTRY_KEY*)malloc(sizeof(REGISTRY_KEY))) == NULL) return NT_STATUS_NO_MEMORY; ZERO_STRUCTP( regkey ); /* * 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 */ if ( !subkey_len ) { pstrcpy( regkey->name, parent->name ); } else { pstrcpy( regkey->name, "" ); if ( parent ) { pstrcat( regkey->name, parent->name ); pstrcat( regkey->name, "\\" ); } pstrcat( regkey->name, subkeyname2 ); } /* Look up the table of registry I/O operations */ if ( !(regkey->hook = reghook_cache_find( regkey->name )) ) { DEBUG(0,("open_registry_key: Failed to assigned a REGISTRY_HOOK to [%s]\n", regkey->name )); return NT_STATUS_OBJECT_PATH_NOT_FOUND; } /* check if the path really exists; failed is indicated by -1 */ /* if the subkey count failed, bail out */ ZERO_STRUCTP( &subkeys ); regsubkey_ctr_init( &subkeys ); if ( fetch_reg_keys( regkey, &subkeys ) == -1 ) { /* don't really know what to return here */ result = NT_STATUS_NO_SUCH_FILE; } else { /* * This would previously return NT_STATUS_TOO_MANY_SECRETS * that doesn't sound quite right to me --jerry */ if ( !create_policy_hnd( p, hnd, free_regkey_info, regkey ) ) result = NT_STATUS_OBJECT_NAME_NOT_FOUND; } /* clean up */ regsubkey_ctr_destroy( &subkeys ); if ( ! NT_STATUS_IS_OK(result) ) SAFE_FREE( regkey ); else DLIST_ADD( regkeys_list, regkey ); DEBUG(7,("open_registry_key: exit\n")); 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; ZERO_STRUCTP( &subkeys ); regsubkey_ctr_init( &subkeys ); 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; regsubkey_ctr_destroy( &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 ) { REGVAL_CTR values; REGISTRY_VALUE *val; uint32 sizemax, lenmax; int i, num_values; if ( !key ) return False; ZERO_STRUCTP( &values ); regval_ctr_init( &values ); 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, strlen(val->valuename)+1 ); sizemax = MAX(sizemax, val->size ); val = regval_ctr_specific_value( &values, i ); } *maxnum = num_values; *maxlen = lenmax; *maxsize = sizemax; regval_ctr_destroy( &values ); return True; } /******************************************************************** 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; } /******************************************************************* ********************************************************************/ NTSTATUS _reg_open_hklm(pipes_struct *p, REG_Q_OPEN_HKLM *q_u, REG_R_OPEN_HKLM *r_u) { return open_registry_key( p, &r_u->pol, NULL, KEY_HKLM, 0x0 ); } /******************************************************************* ********************************************************************/ NTSTATUS _reg_open_hkcr(pipes_struct *p, REG_Q_OPEN_HKCR *q_u, REG_R_OPEN_HKCR *r_u) { return open_registry_key( p, &r_u->pol, NULL, KEY_HKCR, 0x0 ); } /******************************************************************* ********************************************************************/ NTSTATUS _reg_open_hku(pipes_struct *p, REG_Q_OPEN_HKU *q_u, REG_R_OPEN_HKU *r_u) { return open_registry_key( p, &r_u->pol, NULL, KEY_HKU, 0x0 ); } /******************************************************************* 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; REGISTRY_KEY *key = find_regkey_index_by_hnd(p, &q_u->pol); NTSTATUS result; 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); result = open_registry_key( p, &pol, key, name, 0x0 ); init_reg_r_open_entry( r_u, &pol, result ); DEBUG(5,("reg_open_entry: Exit\n")); 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_NO_SUCH_FILE; fstring name; const char *value_ascii = ""; fstring value; int value_length; REGISTRY_KEY *regkey = find_regkey_index_by_hnd( p, &q_u->pol ); REGISTRY_VALUE *val = NULL; REGVAL_CTR regvals; int i; DEBUG(5,("_reg_info: Enter\n")); if ( !regkey ) return NT_STATUS_INVALID_HANDLE; DEBUG(7,("_reg_info: policy key name = [%s]\n", regkey->name)); rpcstr_pull(name, q_u->uni_type.buffer, sizeof(name), q_u->uni_type.uni_str_len*2, 0); DEBUG(5,("reg_info: looking up value: [%s]\n", name)); ZERO_STRUCTP( ®vals ); regval_ctr_init( ®vals ); /* couple of hard coded registry values */ if ( strequal(name, "RefusePasswordChange") ) { if ( (val = (REGISTRY_VALUE*)malloc(sizeof(REGISTRY_VALUE))) == NULL ) { DEBUG(0,("_reg_info: malloc() failed!\n")); return NT_STATUS_NO_MEMORY; } ZERO_STRUCTP( val ); goto out; } if ( strequal(name, REGSTR_PRODUCTTYPE) ) { /* 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. */ switch (lp_server_role()) { case ROLE_DOMAIN_PDC: case ROLE_DOMAIN_BDC: value_ascii = REG_PT_LANMANNT; break; case ROLE_STANDALONE: value_ascii = REG_PT_SERVERNT; break; case ROLE_DOMAIN_MEMBER: value_ascii = REG_PT_WINNT; break; } value_length = push_ucs2(value, value, value_ascii, sizeof(value), STR_TERMINATE|STR_NOALIGN); regval_ctr_addvalue(®vals, REGSTR_PRODUCTTYPE, REG_SZ, value, value_length); val = dup_registry_value( regval_ctr_specific_value( ®vals, 0 ) ); status = NT_STATUS_OK; goto out; } /* else fall back to actually looking up the value */ for ( i=0; fetch_reg_values_specific(regkey, &val, i); i++ ) { DEBUG(10,("_reg_info: Testing value [%s]\n", val->valuename)); if ( StrCaseCmp( val->valuename, name ) == 0 ) { DEBUG(10,("_reg_info: Found match for value [%s]\n", name)); status = NT_STATUS_OK; break; } free_registry_value( val ); } out: new_init_reg_r_info(q_u->ptr_buf, r_u, val, status); regval_ctr_destroy( ®vals ); free_registry_value( val ); DEBUG(5,("_reg_info: 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 ); char *subkey = NULL; 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( regkey, &subkey, q_u->key_index ) ) { status = NT_STATUS_NO_MORE_ENTRIES; 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: SAFE_FREE( subkey ); return status; } /***************************************************************************** Implementation of REG_ENUM_VALUE ****************************************************************************/ NTSTATUS _reg_enum_value(pipes_struct *p, REG_Q_ENUM_VALUE *q_u, REG_R_ENUM_VALUE *r_u) { NTSTATUS status = NT_STATUS_OK; REGISTRY_KEY *regkey = find_regkey_index_by_hnd( p, &q_u->pol ); REGISTRY_VALUE *val; DEBUG(5,("_reg_enum_value: Enter\n")); if ( !regkey ) return NT_STATUS_INVALID_HANDLE; DEBUG(8,("_reg_enum_key: enumerating values for key [%s]\n", regkey->name)); if ( !fetch_reg_values_specific( regkey, &val, q_u->val_index ) ) { status = NT_STATUS_NO_MORE_ENTRIES; goto done; } 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 ); DEBUG(5,("_reg_enum_value: Exit\n")); done: free_registry_value( val ); 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->reboot) ? SHUTDOWN_R_STRING : ""); /* force */ snprintf(f, sizeof(f), (q_u->force) ? 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; } /******************************************************************* REG_SAVE_KEY (0x14) ********************************************************************/ NTSTATUS _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 ); DEBUG(5,("_reg_save_key: Enter\n")); /* * basically this is a no op function which just gverifies * that the client gave us a valid registry key handle */ if ( !regkey ) return NT_STATUS_INVALID_HANDLE; DEBUG(8,("_reg_save_key: berifying backup of key [%s]\n", regkey->name)); return NT_STATUS_OK; }