source4/param/share_classic.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Classic file based shares configuration
   5
   6    Copyright (C) Simo Sorce     2006
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "param/share.h"
  24 #include "param/param.h"
  25
  26 NTSTATUS share_classic_init(void);
  27
  28 static NTSTATUS sclassic_init(TALLOC_CTX *mem_ctx,
  29                               const struct share_ops *ops,
  30                               struct tevent_context *event_ctx,
  31                               struct loadparm_context *lp_ctx,
  32                               struct share_context **ctx)
  33 {
  34         *ctx = talloc(mem_ctx, struct share_context);
  35         if (!*ctx) {
  36                 DEBUG(0, ("ERROR: Out of memory!\n"));
  37                 return NT_STATUS_NO_MEMORY;
  38         }
  39
  40         (*ctx)->ops = ops;
  41         (*ctx)->priv_data = lp_ctx;
  42
  43         return NT_STATUS_OK;
  44 }
  45
  46 static const char *sclassic_string_option(struct share_config *scfg,
  47                                           const char *opt_name,
  48                                           const char *defval)
  49 {
  50         struct loadparm_service *s = talloc_get_type(scfg->opaque,
  51                                                      struct loadparm_service);
  52         struct loadparm_context *lp_ctx = talloc_get_type(scfg->ctx->priv_data,
  53                                                           struct loadparm_context);
  54         char *parm, *val;
  55         const char *ret;
  56
  57         if (strchr(opt_name, ':')) {
  58                 parm = talloc_strdup(scfg, opt_name);
  59                 if (!parm) {
  60                         return NULL;
  61                 }
  62                 val = strchr(parm, ':');
  63                 *val = '\0';
  64                 val++;
  65
  66                 ret = lpcfg_parm_string(lp_ctx, s, parm, val);
  67                 if (!ret) {
  68                         ret = defval;
  69                 }
  70                 talloc_free(parm);
  71                 return ret;
  72         }
  73
  74         if (strcmp(opt_name, SHARE_NAME) == 0) {
  75                 return scfg->name;
  76         }
  77
  78         if (strcmp(opt_name, SHARE_PATH) == 0) {
  79                 return lpcfg_pathname(s, lpcfg_default_service(lp_ctx));
  80         }
  81
  82         if (strcmp(opt_name, SHARE_COMMENT) == 0) {
  83                 return lpcfg_comment(s, lpcfg_default_service(lp_ctx));
  84         }
  85
  86         if (strcmp(opt_name, SHARE_VOLUME) == 0) {
  87                 return lpcfg_volume_label(s, lpcfg_default_service(lp_ctx));
  88         }
  89
  90         if (strcmp(opt_name, SHARE_TYPE) == 0) {
  91                 if (lpcfg_print_ok(s, lpcfg_default_service(lp_ctx))) {
  92                         return "PRINTER";
  93                 }
  94                 if (strcmp("NTFS", lpcfg_fstype(s, lpcfg_default_service(lp_ctx))) == 0) {
  95                         return "DISK";
  96                 }
  97                 return lpcfg_fstype(s, lpcfg_default_service(lp_ctx));
  98         }
  99
 100         if (strcmp(opt_name, SHARE_PASSWORD) == 0) {
 101                 return defval;
 102         }
 103
 104         DEBUG(0,("request for unknown share string option '%s'\n",
 105                  opt_name));
 106
 107         return defval;
 108 }
 109
 110 static int sclassic_int_option(struct share_config *scfg, const char *opt_name, int defval)
 111 {
 112         struct loadparm_service *s = talloc_get_type(scfg->opaque,
 113                                                      struct loadparm_service);
 114         struct loadparm_context *lp_ctx = talloc_get_type(scfg->ctx->priv_data,
 115                                                           struct loadparm_context);
 116         char *parm, *val;
 117         int ret;
 118
 119         if (strchr(opt_name, ':')) {
 120                 parm = talloc_strdup(scfg, opt_name);
 121                 if (!parm) {
 122                         return -1;
 123                 }
 124                 val = strchr(parm, ':');
 125                 *val = '\0';
 126                 val++;
 127
 128                 ret = lpcfg_parm_int(lp_ctx, s, parm, val, defval);
 129                 if (!ret) {
 130                         ret = defval;
 131                 }
 132                 talloc_free(parm);
 133                 return ret;
 134         }
 135
 136         if (strcmp(opt_name, SHARE_CSC_POLICY) == 0) {
 137                 return lpcfg_csc_policy(s, lpcfg_default_service(lp_ctx));
 138         }
 139
 140         if (strcmp(opt_name, SHARE_MAX_CONNECTIONS) == 0) {
 141                 return lpcfg_max_connections(s, lpcfg_default_service(lp_ctx));
 142         }
 143
 144         if (strcmp(opt_name, SHARE_CREATE_MASK) == 0) {
 145                 return lpcfg_create_mask(s, lpcfg_default_service(lp_ctx));
 146         }
 147
 148         if (strcmp(opt_name, SHARE_DIR_MASK) == 0) {
 149                 return lpcfg_dir_mask(s, lpcfg_default_service(lp_ctx));
 150         }
 151
 152         if (strcmp(opt_name, SHARE_FORCE_DIR_MODE) == 0) {
 153                 return lpcfg_force_dir_mode(s, lpcfg_default_service(lp_ctx));
 154         }
 155
 156         if (strcmp(opt_name, SHARE_FORCE_CREATE_MODE) == 0) {
 157                 return lpcfg_force_create_mode(s, lpcfg_default_service(lp_ctx));
 158         }
 159
 160
 161         DEBUG(0,("request for unknown share int option '%s'\n",
 162                  opt_name));
 163
 164         return defval;
 165 }
 166
 167 static bool sclassic_bool_option(struct share_config *scfg, const char *opt_name,
 168                           bool defval)
 169 {
 170         struct loadparm_service *s = talloc_get_type(scfg->opaque,
 171                                                      struct loadparm_service);
 172         struct loadparm_context *lp_ctx = talloc_get_type(scfg->ctx->priv_data,
 173                                                           struct loadparm_context);
 174         char *parm, *val;
 175         bool ret;
 176
 177         if (strchr(opt_name, ':')) {
 178                 parm = talloc_strdup(scfg, opt_name);
 179                 if(!parm) {
 180                         return false;
 181                 }
 182                 val = strchr(parm, ':');
 183                 *val = '\0';
 184                 val++;
 185
 186                 ret = lpcfg_parm_bool(lp_ctx, s, parm, val, defval);
 187                 talloc_free(parm);
 188                 return ret;
 189         }
 190
 191         if (strcmp(opt_name, SHARE_AVAILABLE) == 0) {
 192                 return s != NULL;
 193         }
 194
 195         if (strcmp(opt_name, SHARE_BROWSEABLE) == 0) {
 196                 return lpcfg_browseable(s, lpcfg_default_service(lp_ctx));
 197         }
 198
 199         if (strcmp(opt_name, SHARE_READONLY) == 0) {
 200                 return lpcfg_readonly(s, lpcfg_default_service(lp_ctx));
 201         }
 202
 203         if (strcmp(opt_name, SHARE_MAP_SYSTEM) == 0) {
 204                 return lpcfg_map_system(s, lpcfg_default_service(lp_ctx));
 205         }
 206
 207         if (strcmp(opt_name, SHARE_MAP_HIDDEN) == 0) {
 208                 return lpcfg_map_hidden(s, lpcfg_default_service(lp_ctx));
 209         }
 210
 211         if (strcmp(opt_name, SHARE_MAP_ARCHIVE) == 0) {
 212                 return lpcfg_map_archive(s, lpcfg_default_service(lp_ctx));
 213         }
 214
 215         if (strcmp(opt_name, SHARE_STRICT_LOCKING) == 0) {
 216                 return lpcfg_strict_locking(s, lpcfg_default_service(lp_ctx));
 217         }
 218
 219         if (strcmp(opt_name, SHARE_OPLOCKS) == 0) {
 220                 return lpcfg_oplocks(s, lpcfg_default_service(lp_ctx));
 221         }
 222
 223         if (strcmp(opt_name, SHARE_STRICT_SYNC) == 0) {
 224                 return lpcfg_strict_sync(s, lpcfg_default_service(lp_ctx));
 225         }
 226
 227         if (strcmp(opt_name, SHARE_MSDFS_ROOT) == 0) {
 228                 return lpcfg_msdfs_root(s, lpcfg_default_service(lp_ctx));
 229         }
 230
 231         if (strcmp(opt_name, SHARE_CI_FILESYSTEM) == 0) {
 232                 int case_sensitive = lpcfg_casesensitive(s, lpcfg_default_service(lp_ctx));
 233                 /*
 234                  * Yes, this confusingly named option means Samba acts
 235                  * case sensitive, so that the filesystem can act case
 236                  * insensitive.
 237                  *
 238                  */
 239                 if (case_sensitive == Auto) {
 240                         /* Auto is for unix extensions and unix
 241                          * clients, which we don't support here.
 242                          * Samba needs to do the case changing,
 243                          * because the filesystem is case
 244                          * sensitive  */
 245                         return false;
 246                 } else if (case_sensitive) {
 247                         /* True means that Samba won't do anything to
 248                          * change the case of incoming requests.
 249                          * Essentially this means we trust the file
 250                          * system to be case insensitive */
 251                         return true;
 252                 } else {
 253                         /* False means that Smaba needs to do the case
 254                          * changing, because the filesystem is case
 255                          * sensitive */
 256                         return false;
 257                 }
 258         }
 259
 260         DEBUG(0,("request for unknown share bool option '%s'\n",
 261                  opt_name));
 262
 263         return defval;
 264 }
 265
 266 static const char **sclassic_string_list_option(TALLOC_CTX *mem_ctx, struct share_config *scfg, const char *opt_name)
 267 {
 268         struct loadparm_service *s = talloc_get_type(scfg->opaque,
 269                                                      struct loadparm_service);
 270         struct loadparm_context *lp_ctx = talloc_get_type(scfg->ctx->priv_data,
 271                                                           struct loadparm_context);
 272         char *parm, *val;
 273         const char **ret;
 274
 275         if (strchr(opt_name, ':')) {
 276                 parm = talloc_strdup(scfg, opt_name);
 277                 if (!parm) {
 278                         return NULL;
 279                 }
 280                 val = strchr(parm, ':');
 281                 *val = '\0';
 282                 val++;
 283
 284                 ret = lpcfg_parm_string_list(mem_ctx, lp_ctx, s, parm, val, ",;");
 285                 talloc_free(parm);
 286                 return ret;
 287         }
 288
 289         if (strcmp(opt_name, SHARE_HOSTS_ALLOW) == 0) {
 290                 return lpcfg_hostsallow(s, lpcfg_default_service(lp_ctx));
 291         }
 292
 293         if (strcmp(opt_name, SHARE_HOSTS_DENY) == 0) {
 294                 return lpcfg_hostsdeny(s, lpcfg_default_service(lp_ctx));
 295         }
 296
 297         if (strcmp(opt_name, SHARE_NTVFS_HANDLER) == 0) {
 298                 return lpcfg_ntvfs_handler(s, lpcfg_default_service(lp_ctx));
 299         }
 300
 301         DEBUG(0,("request for unknown share list option '%s'\n",
 302                  opt_name));
 303
 304         return NULL;
 305 }
 306
 307 static NTSTATUS sclassic_list_all(TALLOC_CTX *mem_ctx,
 308                                   struct share_context *ctx,
 309                                   int *count,
 310                                   const char ***names)
 311 {
 312         int i;
 313         int num_services;
 314         const char **n;
 315
 316         num_services = lpcfg_numservices((struct loadparm_context *)ctx->priv_data);
 317
 318         n = talloc_array(mem_ctx, const char *, num_services);
 319         if (!n) {
 320                 DEBUG(0,("ERROR: Out of memory!\n"));
 321                 return NT_STATUS_NO_MEMORY;
 322         }
 323
 324         for (i = 0; i < num_services; i++) {
 325                 n[i] = talloc_strdup(n, lpcfg_servicename(lpcfg_servicebynum((struct loadparm_context *)ctx->priv_data, i)));
 326                 if (!n[i]) {
 327                         DEBUG(0,("ERROR: Out of memory!\n"));
 328                         talloc_free(n);
 329                         return NT_STATUS_NO_MEMORY;
 330                 }
 331         }
 332
 333         *names = n;
 334         *count = num_services;
 335
 336         return NT_STATUS_OK;
 337 }
 338
 339 static NTSTATUS sclassic_get_config(TALLOC_CTX *mem_ctx,
 340                                     struct share_context *ctx,
 341                                     const char *name,
 342                                     struct share_config **scfg)
 343 {
 344         struct share_config *s;
 345         struct loadparm_service *service;
 346
 347         service = lpcfg_service((struct loadparm_context *)ctx->priv_data, name);
 348
 349         if (service == NULL) {
 350                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
 351         }
 352
 353         s = talloc(mem_ctx, struct share_config);
 354         if (!s) {
 355                 DEBUG(0,("ERROR: Out of memory!\n"));
 356                 return NT_STATUS_NO_MEMORY;
 357         }
 358
 359         s->name = talloc_strdup(s, lpcfg_servicename(service));
 360         if (!s->name) {
 361                 DEBUG(0,("ERROR: Out of memory!\n"));
 362                 talloc_free(s);
 363                 return NT_STATUS_NO_MEMORY;
 364         }
 365
 366         s->opaque = (void *)service;
 367         s->ctx = ctx;
 368
 369         *scfg = s;
 370
 371         return NT_STATUS_OK;
 372 }
 373
 374 static const struct share_ops ops = {
 375         .name = "classic",
 376         .init = sclassic_init,
 377         .string_option = sclassic_string_option,
 378         .int_option = sclassic_int_option,
 379         .bool_option = sclassic_bool_option,
 380         .string_list_option = sclassic_string_list_option,
 381         .list_all = sclassic_list_all,
 382         .get_config = sclassic_get_config
 383 };
 384
 385 NTSTATUS share_classic_init(void)
 386 {
 387         return share_register(&ops);
 388 }
 389