1/* 2 * Unix SMB/CIFS implementation. 3 * Group Policy Object Support 4 * Copyright (C) Guenther Deschner 2005-2006 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 3 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20#include "includes.h" 21#include "system/filesys.h" 22#include "../libgpo/gpo.h" 23#include "../libgpo/gpo_ini.h" 24 25#if _SAMBA_BUILD_ == 4 26#include "param/param.h" 27#include "libcli/resolve/resolve.h" 28#include "../lib/tevent/tevent.h" 29#include "libcli/libcli.h" 30#include "libcli/raw/libcliraw.h" 31#include "libcli/libcli_proto.h" 32#include "libgpo/ads_convenience.h" 33#include "libgpo/gpo_s4.h" 34#include "lib/util/util.h" 35#endif 36 37/**************************************************************** 38 explode the GPO CIFS URI into their components 39****************************************************************/ 40 41NTSTATUS gpo_explode_filesyspath(TALLOC_CTX *mem_ctx, 42 const char *cache_dir, 43 const char *file_sys_path, 44 char **server, 45 char **service, 46 char **nt_path, 47 char **unix_path) 48{ 49 char *path = NULL; 50 51 *server = NULL; 52 *service = NULL; 53 *nt_path = NULL; 54 *unix_path = NULL; 55 56 if (!file_sys_path) { 57 return NT_STATUS_OK; 58 } 59 60 if (!next_token_talloc(mem_ctx, &file_sys_path, server, "\\")) { 61 return NT_STATUS_INVALID_PARAMETER; 62 } 63 NT_STATUS_HAVE_NO_MEMORY(*server); 64 65 if (!next_token_talloc(mem_ctx, &file_sys_path, service, "\\")) { 66 return NT_STATUS_INVALID_PARAMETER; 67 } 68 NT_STATUS_HAVE_NO_MEMORY(*service); 69 70 if ((*nt_path = talloc_asprintf(mem_ctx, "\\%s", file_sys_path)) 71 == NULL) { 72 return NT_STATUS_NO_MEMORY; 73 } 74 NT_STATUS_HAVE_NO_MEMORY(*nt_path); 75 76 if ((path = talloc_asprintf(mem_ctx, 77 "%s/%s", 78 cache_dir, 79 file_sys_path)) == NULL) { 80 return NT_STATUS_NO_MEMORY; 81 } 82#if _SAMBA_BUILD_ == 4 83 path = string_sub_talloc(mem_ctx, path, "\\", "/"); 84#else 85 path = talloc_string_sub(mem_ctx, path, "\\", "/"); 86#endif 87 if (!path) { 88 return NT_STATUS_NO_MEMORY; 89 } 90 91 *unix_path = talloc_strdup(mem_ctx, path); 92 NT_STATUS_HAVE_NO_MEMORY(*unix_path); 93 94 talloc_free(path); 95 return NT_STATUS_OK; 96} 97 98/**************************************************************** 99 prepare the local disc storage for "unix_path" 100****************************************************************/ 101 102static NTSTATUS gpo_prepare_local_store(TALLOC_CTX *mem_ctx, 103 const char *cache_dir, 104 const char *unix_path) 105{ 106 char *current_dir; 107 char *tok; 108 109 current_dir = talloc_strdup(mem_ctx, cache_dir); 110 NT_STATUS_HAVE_NO_MEMORY(current_dir); 111 112 if ((mkdir(cache_dir, 0644)) < 0 && errno != EEXIST) { 113 return NT_STATUS_ACCESS_DENIED; 114 } 115 116 while (next_token_talloc(mem_ctx, &unix_path, &tok, "/")) { 117 if (strequal(tok, GPO_CACHE_DIR)) { 118 break; 119 } 120 } 121 122 while (next_token_talloc(mem_ctx, &unix_path, &tok, "/")) { 123 current_dir = talloc_asprintf_append_buffer(current_dir, "/%s", tok); 124 NT_STATUS_HAVE_NO_MEMORY(current_dir); 125 126 if ((mkdir(current_dir, 0644)) < 0 && errno != EEXIST) { 127 return NT_STATUS_ACCESS_DENIED; 128 } 129 } 130 131 return NT_STATUS_OK; 132} 133 134static NTSTATUS gpo_connect_server(ADS_STRUCT *ads, struct loadparm_context *lp_ctx, 135 const char *server, const char *service, void *ret_cli) 136{ 137 NTSTATUS result; 138#if _SAMBA_BUILD_ == 3 139 struct cli_state *cli; 140 141 142 result = cli_full_connection(&cli, 143 global_myname(), 144 server, 145 NULL, 0, 146 service, "A:", 147 ads->auth.user_name, NULL, 148 ads->auth.password, 149 CLI_FULL_CONNECTION_USE_KERBEROS | 150 CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS, 151 Undefined, NULL); 152 if (!NT_STATUS_IS_OK(result)) { 153 DEBUG(10,("check_refresh_gpo: " 154 "failed to connect: %s\n", 155 nt_errstr(result))); 156 return result; 157 } 158 *(struct cli_state **) ret_cli = cli; 159#else 160 struct smbcli_state *cli = NULL; 161 struct smbcli_options options; 162 struct smbcli_session_options session_options; 163 164 lp_smbcli_options(lp_ctx, &options); 165 lp_smbcli_session_options(lp_ctx, &session_options); 166 167 result = smbcli_full_connection(NULL, &cli, 168 server, 169 NULL, service, 170 NULL /*devtype*/, NULL /* socket options */, 171 ads->credentials, 172 lp_resolve_context(lp_ctx), 173 tevent_context_init(ads), 174 &options, 175 &session_options, 176 lp_iconv_convenience(lp_ctx), 177 lp_gensec_settings(ads, lp_ctx)); 178 if (!NT_STATUS_IS_OK(result)) { 179 DEBUG(10,("failed to connect: %s\n", 180 nt_errstr(result))); 181 return result; 182 } 183 *(struct smbcli_state **) ret_cli = cli; 184#endif 185 return NT_STATUS_OK; 186} 187 188/**************************************************************** 189 download a full GPO via CIFS 190****************************************************************/ 191 192NTSTATUS gpo_fetch_files(TALLOC_CTX *mem_ctx, 193 ADS_STRUCT *ads, 194 struct loadparm_context *lp_ctx, 195 const char *cache_dir, 196 struct GROUP_POLICY_OBJECT *gpo) 197{ 198 NTSTATUS result; 199 char *server, *service, *nt_path, *unix_path; 200 char *nt_ini_path, *unix_ini_path; 201#if _SAMBA_BUILD_ == 3 202 struct cli_state *cli; 203#else 204 struct smbcli_state *cli; 205#endif 206 207 208 result = gpo_explode_filesyspath(mem_ctx, cache_dir, gpo->file_sys_path, 209 &server, &service, &nt_path, 210 &unix_path); 211 NT_STATUS_NOT_OK_RETURN(result); 212 213 214 result = gpo_connect_server(ads, lp_ctx, server, service, &cli); 215 NT_STATUS_NOT_OK_RETURN(result); 216 217 218 result = gpo_prepare_local_store(mem_ctx, cache_dir, unix_path); 219 NT_STATUS_NOT_OK_RETURN(result); 220 221 unix_ini_path = talloc_asprintf(mem_ctx, "%s/%s", unix_path, GPT_INI); 222 nt_ini_path = talloc_asprintf(mem_ctx, "%s\\%s", nt_path, GPT_INI); 223 NT_STATUS_HAVE_NO_MEMORY(unix_ini_path); 224 NT_STATUS_HAVE_NO_MEMORY(nt_ini_path); 225 226 result = gpo_copy_file(mem_ctx, cli, nt_ini_path, unix_ini_path); 227 NT_STATUS_NOT_OK_RETURN(result); 228 229 result = gpo_sync_directories(mem_ctx, cli, nt_path, unix_path); 230 NT_STATUS_NOT_OK_RETURN(result); 231 232 return NT_STATUS_OK; 233} 234 235/**************************************************************** 236 get the locally stored gpt.ini version number 237****************************************************************/ 238 239NTSTATUS gpo_get_sysvol_gpt_version(TALLOC_CTX *mem_ctx, 240 const char *unix_path, 241 uint32_t *sysvol_version, 242 char **display_name) 243{ 244 NTSTATUS status; 245 uint32_t version = 0; 246 char *local_path = NULL; 247 char *name = NULL; 248 249 if (!unix_path) { 250 return NT_STATUS_OK; 251 } 252 253 local_path = talloc_asprintf(mem_ctx, "%s/%s", unix_path, GPT_INI); 254 NT_STATUS_HAVE_NO_MEMORY(local_path); 255 256 status = parse_gpt_ini(mem_ctx, local_path, &version, &name); 257 if (!NT_STATUS_IS_OK(status)) { 258 DEBUG(10,("gpo_get_sysvol_gpt_version: " 259 "failed to parse ini [%s]: %s\n", 260 local_path, nt_errstr(status))); 261 return status; 262 } 263 264 if (sysvol_version) { 265 *sysvol_version = version; 266 } 267 268 if (name && *display_name) { 269 *display_name = talloc_strdup(mem_ctx, name); 270 NT_STATUS_HAVE_NO_MEMORY(*display_name); 271 } 272 273 return NT_STATUS_OK; 274} 275