source/libcli/clilist.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    client directory list routines
   4    Copyright (C) Andrew Tridgell 1994-2003
   5    Copyright (C) James Myers 2003 <myersjj@samba.org>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "libcli/libcli.h"
  23 #include "libcli/raw/libcliraw.h"
  24 #include "libcli/raw/raw_proto.h"
  25
  26 struct search_private {
  27         struct clilist_file_info *dirlist;
  28         TALLOC_CTX *mem_ctx;
  29         int dirlist_len;
  30         int ff_searchcount;  /* total received in 1 server trip */
  31         int total_received;  /* total received all together */
  32         enum smb_search_data_level data_level;
  33         const char *last_name;     /* used to continue trans2 search */
  34         struct smb_search_id id;   /* used for old-style search */
  35 };
  36
  37
  38 /****************************************************************************
  39  Interpret a long filename structure.
  40 ****************************************************************************/
  41 static bool interpret_long_filename(enum smb_search_data_level level,
  42                                     const union smb_search_data *info,
  43                                     struct clilist_file_info *finfo)
  44 {
  45         struct clilist_file_info finfo2;
  46
  47         if (!finfo) finfo = &finfo2;
  48         ZERO_STRUCTP(finfo);
  49
  50         switch (level) {
  51         case RAW_SEARCH_DATA_STANDARD:
  52                 finfo->size = info->standard.size;
  53                 finfo->mtime = info->standard.write_time;
  54                 finfo->attrib = info->standard.attrib;
  55                 finfo->name = info->standard.name.s;
  56                 finfo->short_name = info->standard.name.s;
  57                 break;
  58
  59         case RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO:
  60                 finfo->size = info->both_directory_info.size;
  61                 finfo->mtime = nt_time_to_unix(info->both_directory_info.write_time);
  62                 finfo->attrib = info->both_directory_info.attrib;
  63                 finfo->short_name = info->both_directory_info.short_name.s;
  64                 finfo->name = info->both_directory_info.name.s;
  65                 break;
  66
  67         default:
  68                 DEBUG(0,("Unhandled level %d in interpret_long_filename\n", (int)level));
  69                 return false;
  70         }
  71
  72         return true;
  73 }
  74
  75 /* callback function used for trans2 search */
  76 static bool smbcli_list_new_callback(void *private, const union smb_search_data *file)
  77 {
  78         struct search_private *state = (struct search_private*) private;
  79         struct clilist_file_info *tdl;
  80
  81         /* add file info to the dirlist pool */
  82         tdl = talloc_realloc(state,
  83                              state->dirlist,
  84                              struct clilist_file_info,
  85                              state->dirlist_len + 1);
  86         if (!tdl) {
  87                 return false;
  88         }
  89         state->dirlist = tdl;
  90         state->dirlist_len++;
  91
  92         interpret_long_filename(state->data_level, file, &state->dirlist[state->total_received]);
  93
  94         state->last_name = state->dirlist[state->total_received].name;
  95         state->total_received++;
  96         state->ff_searchcount++;
  97
  98         return true;
  99 }
 100
 101 int smbcli_list_new(struct smbcli_tree *tree, const char *Mask, uint16_t attribute,
 102                     enum smb_search_data_level level,
 103                     void (*fn)(struct clilist_file_info *, const char *, void *),
 104                     void *caller_state)
 105 {
 106         union smb_search_first first_parms;
 107         union smb_search_next next_parms;
 108         struct search_private state;  /* for callbacks */
 109         int received = 0;
 110         bool first = true;
 111         int num_received = 0;
 112         int max_matches = 512;
 113         char *mask;
 114         int ff_eos = 0, i, ff_searchcount;
 115         int ff_dir_handle=0;
 116
 117         /* initialize state for search */
 118         state.mem_ctx = talloc_init("smbcli_list_new");
 119         state.dirlist_len = 0;
 120         state.total_received = 0;
 121
 122         state.dirlist = talloc_array(state.mem_ctx,
 123                                      struct clilist_file_info, 0);
 124         mask = talloc_strdup(state.mem_ctx, Mask);
 125
 126         if (level == RAW_SEARCH_DATA_GENERIC) {
 127                 if (tree->session->transport->negotiate.capabilities & CAP_NT_SMBS) {
 128                         level = RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO;
 129                 } else {
 130                         level = RAW_SEARCH_DATA_STANDARD;
 131                 }
 132         }
 133         state.data_level = level;
 134
 135         while (1) {
 136                 state.ff_searchcount = 0;
 137                 if (first) {
 138                         NTSTATUS status;
 139
 140                         first_parms.t2ffirst.level = RAW_SEARCH_TRANS2;
 141                         first_parms.t2ffirst.data_level = state.data_level;
 142                         first_parms.t2ffirst.in.max_count = max_matches;
 143                         first_parms.t2ffirst.in.search_attrib = attribute;
 144                         first_parms.t2ffirst.in.pattern = mask;
 145                         first_parms.t2ffirst.in.flags = FLAG_TRANS2_FIND_CLOSE_IF_END;
 146                         first_parms.t2ffirst.in.storage_type = 0;
 147
 148                         status = smb_raw_search_first(tree,
 149                                                       state.mem_ctx, &first_parms,
 150                                                       (void*)&state, smbcli_list_new_callback);
 151                         if (!NT_STATUS_IS_OK(status)) {
 152                                 talloc_free(state.mem_ctx);
 153                                 return -1;
 154                         }
 155
 156                         ff_dir_handle = first_parms.t2ffirst.out.handle;
 157                         ff_searchcount = first_parms.t2ffirst.out.count;
 158                         ff_eos = first_parms.t2ffirst.out.end_of_search;
 159
 160                         received = first_parms.t2ffirst.out.count;
 161                         if (received <= 0) break;
 162                         if (ff_eos) break;
 163                         first = false;
 164                 } else {
 165                         NTSTATUS status;
 166
 167                         next_parms.t2fnext.level = RAW_SEARCH_TRANS2;
 168                         next_parms.t2fnext.data_level = state.data_level;
 169                         next_parms.t2fnext.in.max_count = max_matches;
 170                         next_parms.t2fnext.in.last_name = state.last_name;
 171                         next_parms.t2fnext.in.handle = ff_dir_handle;
 172                         next_parms.t2fnext.in.resume_key = 0;
 173                         next_parms.t2fnext.in.flags = FLAG_TRANS2_FIND_CLOSE_IF_END;
 174
 175                         status = smb_raw_search_next(tree,
 176                                                      state.mem_ctx,
 177                                                      &next_parms,
 178                                                      (void*)&state,
 179                                                      smbcli_list_new_callback);
 180
 181                         if (!NT_STATUS_IS_OK(status)) {
 182                                 return -1;
 183                         }
 184                         ff_searchcount = next_parms.t2fnext.out.count;
 185                         ff_eos = next_parms.t2fnext.out.end_of_search;
 186                         received = next_parms.t2fnext.out.count;
 187                         if (received <= 0) break;
 188                         if (ff_eos) break;
 189                 }
 190
 191                 num_received += received;
 192         }
 193
 194         for (i=0;i<state.total_received;i++) {
 195                 fn(&state.dirlist[i], Mask, caller_state);
 196         }
 197
 198         talloc_free(state.mem_ctx);
 199
 200         return state.total_received;
 201 }
 202
 203 /****************************************************************************
 204  Interpret a short filename structure.
 205  The length of the structure is returned.
 206 ****************************************************************************/
 207 static bool interpret_short_filename(enum smb_search_data_level level,
 208                                      const union smb_search_data *info,
 209                                      struct clilist_file_info *finfo)
 210 {
 211         struct clilist_file_info finfo2;
 212
 213         if (!finfo) finfo = &finfo2;
 214         ZERO_STRUCTP(finfo);
 215
 216         switch (level) {
 217         case RAW_SEARCH_DATA_SEARCH:
 218                 finfo->mtime = info->search.write_time;
 219                 finfo->size = info->search.size;
 220                 finfo->attrib = info->search.attrib;
 221                 finfo->name = info->search.name;
 222                 finfo->short_name = info->search.name;
 223                 break;
 224
 225         default:
 226                 DEBUG(0,("Unhandled level %d in interpret_short_filename\n", (int)level));
 227                 return false;
 228         }
 229
 230         return true;
 231 }
 232
 233 /* callback function used for smb_search */
 234 static bool smbcli_list_old_callback(void *private, const union smb_search_data *file)
 235 {
 236         struct search_private *state = (struct search_private*) private;
 237         struct clilist_file_info *tdl;
 238
 239         /* add file info to the dirlist pool */
 240         tdl = talloc_realloc(state,
 241                              state->dirlist,
 242                              struct clilist_file_info,
 243                              state->dirlist_len + 1);
 244
 245         if (!tdl) {
 246                 return false;
 247         }
 248         state->dirlist = tdl;
 249         state->dirlist_len++;
 250
 251         interpret_short_filename(state->data_level, file, &state->dirlist[state->total_received]);
 252
 253         state->total_received++;
 254         state->ff_searchcount++;
 255         state->id = file->search.id; /* return resume info */
 256
 257         return true;
 258 }
 259
 260 int smbcli_list_old(struct smbcli_tree *tree, const char *Mask, uint16_t attribute,
 261                  void (*fn)(struct clilist_file_info *, const char *, void *),
 262                  void *caller_state)
 263 {
 264         union smb_search_first first_parms;
 265         union smb_search_next next_parms;
 266         struct search_private state;  /* for callbacks */
 267         const int num_asked = 500;
 268         int received = 0;
 269         bool first = true;
 270         int num_received = 0;
 271         char *mask;
 272         int i;
 273
 274         /* initialize state for search */
 275         state.mem_ctx = talloc_init("smbcli_list_old");
 276         state.dirlist_len = 0;
 277         state.total_received = 0;
 278         state.data_level = RAW_SEARCH_DATA_SEARCH;
 279
 280         state.dirlist = talloc_array(state.mem_ctx, struct clilist_file_info,
 281                                      0);
 282         mask = talloc_strdup(state.mem_ctx, Mask);
 283
 284         while (1) {
 285                 state.ff_searchcount = 0;
 286                 if (first) {
 287                         NTSTATUS status;
 288
 289                         first_parms.search_first.level = RAW_SEARCH_SEARCH;
 290                         first_parms.search_first.data_level = RAW_SEARCH_DATA_SEARCH;
 291                         first_parms.search_first.in.max_count = num_asked;
 292                         first_parms.search_first.in.search_attrib = attribute;
 293                         first_parms.search_first.in.pattern = mask;
 294
 295                         status = smb_raw_search_first(tree, state.mem_ctx,
 296                                                       &first_parms,
 297                                                       (void*)&state,
 298                                                       smbcli_list_old_callback);
 299
 300                         if (!NT_STATUS_IS_OK(status)) {
 301                                 talloc_free(state.mem_ctx);
 302                                 return -1;
 303                         }
 304
 305                         received = first_parms.search_first.out.count;
 306                         if (received <= 0) break;
 307                         first = false;
 308                 } else {
 309                         NTSTATUS status;
 310
 311                         next_parms.search_next.level = RAW_SEARCH_SEARCH;
 312                         next_parms.search_next.data_level = RAW_SEARCH_DATA_SEARCH;
 313                         next_parms.search_next.in.max_count = num_asked;
 314                         next_parms.search_next.in.search_attrib = attribute;
 315                         next_parms.search_next.in.id = state.id;
 316
 317                         status = smb_raw_search_next(tree, state.mem_ctx,
 318                                                      &next_parms,
 319                                                      (void*)&state,
 320                                                      smbcli_list_old_callback);
 321
 322                         if (NT_STATUS_EQUAL(status, STATUS_NO_MORE_FILES)) {
 323                                 break;
 324                         }
 325                         if (!NT_STATUS_IS_OK(status)) {
 326                                 talloc_free(state.mem_ctx);
 327                                 return -1;
 328                         }
 329                         received = next_parms.search_next.out.count;
 330                         if (received <= 0) break;
 331                 }
 332
 333                 num_received += received;
 334         }
 335
 336         for (i=0;i<state.total_received;i++) {
 337                 fn(&state.dirlist[i], Mask, caller_state);
 338         }
 339
 340         talloc_free(state.mem_ctx);
 341
 342         return state.total_received;
 343 }
 344
 345 /****************************************************************************
 346  Do a directory listing, calling fn on each file found.
 347  This auto-switches between old and new style.
 348 ****************************************************************************/
 349
 350 int smbcli_list(struct smbcli_tree *tree, const char *Mask,uint16_t attribute,
 351                 void (*fn)(struct clilist_file_info *, const char *, void *), void *state)
 352 {
 353         if (tree->session->transport->negotiate.protocol <= PROTOCOL_LANMAN1)
 354                 return smbcli_list_old(tree, Mask, attribute, fn, state);
 355         return smbcli_list_new(tree, Mask, attribute, RAW_SEARCH_DATA_GENERIC, fn, state);
 356 }