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 2 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, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23 #include "clilist.h"
  24 #include "libcli/raw/libcliraw.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_level info_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_level level,
  42                                     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_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_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, 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->info_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_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_new(state.mem_ctx);
 123         mask = talloc_strdup(state.mem_ctx, Mask);
 124
 125         if (level == RAW_SEARCH_GENERIC) {
 126                 if (tree->session->transport->negotiate.capabilities & CAP_NT_SMBS) {
 127                         level = RAW_SEARCH_BOTH_DIRECTORY_INFO;
 128                 } else {
 129                         level = RAW_SEARCH_STANDARD;
 130                 }
 131         }
 132         state.info_level = level;
 133
 134         while (1) {
 135                 state.ff_searchcount = 0;
 136                 if (first) {
 137                         NTSTATUS status;
 138
 139                         first_parms.t2ffirst.level = state.info_level;
 140                         first_parms.t2ffirst.in.max_count = max_matches;
 141                         first_parms.t2ffirst.in.search_attrib = attribute;
 142                         first_parms.t2ffirst.in.pattern = mask;
 143                         first_parms.t2ffirst.in.flags = FLAG_TRANS2_FIND_CLOSE_IF_END;
 144                         first_parms.t2ffirst.in.storage_type = 0;
 145
 146                         status = smb_raw_search_first(tree,
 147                                                       state.mem_ctx, &first_parms,
 148                                                       (void*)&state, smbcli_list_new_callback);
 149                         if (!NT_STATUS_IS_OK(status)) {
 150                                 talloc_destroy(state.mem_ctx);
 151                                 return -1;
 152                         }
 153
 154                         ff_dir_handle = first_parms.t2ffirst.out.handle;
 155                         ff_searchcount = first_parms.t2ffirst.out.count;
 156                         ff_eos = first_parms.t2ffirst.out.end_of_search;
 157
 158                         received = first_parms.t2ffirst.out.count;
 159                         if (received <= 0) break;
 160                         if (ff_eos) break;
 161                         first = False;
 162                 } else {
 163                         NTSTATUS status;
 164
 165                         next_parms.t2fnext.level = state.info_level;
 166                         next_parms.t2fnext.in.max_count = max_matches;
 167                         next_parms.t2fnext.in.last_name = state.last_name;
 168                         next_parms.t2fnext.in.handle = ff_dir_handle;
 169                         next_parms.t2fnext.in.resume_key = 0;
 170                         next_parms.t2fnext.in.flags = FLAG_TRANS2_FIND_CLOSE_IF_END;
 171
 172                         status = smb_raw_search_next(tree,
 173                                                      state.mem_ctx,
 174                                                      &next_parms,
 175                                                      (void*)&state,
 176                                                      smbcli_list_new_callback);
 177
 178                         if (!NT_STATUS_IS_OK(status)) {
 179                                 return -1;
 180                         }
 181                         ff_searchcount = next_parms.t2fnext.out.count;
 182                         ff_eos = next_parms.t2fnext.out.end_of_search;
 183                         received = next_parms.t2fnext.out.count;
 184                         if (received <= 0) break;
 185                         if (ff_eos) break;
 186                 }
 187
 188                 num_received += received;
 189         }
 190
 191         for (i=0;i<state.total_received;i++) {
 192                 fn(&state.dirlist[i], Mask, caller_state);
 193         }
 194
 195         talloc_destroy(state.mem_ctx);
 196
 197         return state.total_received;
 198 }
 199
 200 /****************************************************************************
 201  Interpret a short filename structure.
 202  The length of the structure is returned.
 203 ****************************************************************************/
 204 static BOOL interpret_short_filename(int level,
 205                                 union smb_search_data *info,
 206                                 struct clilist_file_info *finfo)
 207 {
 208         struct clilist_file_info finfo2;
 209
 210         if (!finfo) finfo = &finfo2;
 211         ZERO_STRUCTP(finfo);
 212
 213         finfo->mtime = info->search.write_time;
 214         finfo->size = info->search.size;
 215         finfo->attrib = info->search.attrib;
 216         finfo->name = info->search.name;
 217         finfo->short_name = info->search.name;
 218         return True;
 219 }
 220
 221 /* callback function used for smb_search */
 222 static BOOL smbcli_list_old_callback(void *private, union smb_search_data *file)
 223 {
 224         struct search_private *state = (struct search_private*) private;
 225         struct clilist_file_info *tdl;
 226
 227         /* add file info to the dirlist pool */
 228         tdl = talloc_realloc(state,
 229                              state->dirlist,
 230                              struct clilist_file_info,
 231                              state->dirlist_len + 1);
 232
 233         if (!tdl) {
 234                 return False;
 235         }
 236         state->dirlist = tdl;
 237         state->dirlist_len++;
 238
 239         interpret_short_filename(state->info_level, file, &state->dirlist[state->total_received]);
 240
 241         state->total_received++;
 242         state->ff_searchcount++;
 243         state->id = file->search.id; /* return resume info */
 244
 245         return True;
 246 }
 247
 248 int smbcli_list_old(struct smbcli_tree *tree, const char *Mask, uint16_t attribute,
 249                  void (*fn)(struct clilist_file_info *, const char *, void *),
 250                  void *caller_state)
 251 {
 252         union smb_search_first first_parms;
 253         union smb_search_next next_parms;
 254         struct search_private state;  /* for callbacks */
 255         const int num_asked = 500;
 256         int received = 0;
 257         BOOL first = True;
 258         int num_received = 0;
 259         char *mask;
 260         int i;
 261
 262         /* initialize state for search */
 263         state.mem_ctx = talloc_init("smbcli_list_old");
 264         state.dirlist_len = 0;
 265         state.total_received = 0;
 266
 267         state.dirlist = talloc_new(state.mem_ctx);
 268         mask = talloc_strdup(state.mem_ctx, Mask);
 269
 270         while (1) {
 271                 state.ff_searchcount = 0;
 272                 if (first) {
 273                         NTSTATUS status;
 274
 275                         first_parms.search_first.level = RAW_SEARCH_SEARCH;
 276                         first_parms.search_first.in.max_count = num_asked;
 277                         first_parms.search_first.in.search_attrib = attribute;
 278                         first_parms.search_first.in.pattern = mask;
 279
 280                         status = smb_raw_search_first(tree, state.mem_ctx,
 281                                                       &first_parms,
 282                                                       (void*)&state,
 283                                                       smbcli_list_old_callback);
 284
 285                         if (!NT_STATUS_IS_OK(status)) {
 286                                 talloc_destroy(state.mem_ctx);
 287                                 return -1;
 288                         }
 289
 290                         received = first_parms.search_first.out.count;
 291                         if (received <= 0) break;
 292                         first = False;
 293                 } else {
 294                         NTSTATUS status;
 295
 296                         next_parms.search_next.level = RAW_SEARCH_SEARCH;
 297                         next_parms.search_next.in.max_count = num_asked;
 298                         next_parms.search_next.in.search_attrib = attribute;
 299                         next_parms.search_next.in.id = state.id;
 300
 301                         status = smb_raw_search_next(tree, state.mem_ctx,
 302                                                      &next_parms,
 303                                                      (void*)&state,
 304                                                      smbcli_list_old_callback);
 305
 306                         if (NT_STATUS_EQUAL(status, STATUS_NO_MORE_FILES)) {
 307                                 break;
 308                         }
 309                         if (!NT_STATUS_IS_OK(status)) {
 310                                 talloc_destroy(state.mem_ctx);
 311                                 return -1;
 312                         }
 313                         received = next_parms.search_next.out.count;
 314                         if (received <= 0) break;
 315                 }
 316
 317                 num_received += received;
 318         }
 319
 320         for (i=0;i<state.total_received;i++) {
 321                 fn(&state.dirlist[i], Mask, caller_state);
 322         }
 323
 324         talloc_destroy(state.mem_ctx);
 325
 326         return state.total_received;
 327 }
 328
 329 /****************************************************************************
 330  Do a directory listing, calling fn on each file found.
 331  This auto-switches between old and new style.
 332 ****************************************************************************/
 333
 334 int smbcli_list(struct smbcli_tree *tree, const char *Mask,uint16_t attribute,
 335                 void (*fn)(struct clilist_file_info *, const char *, void *), void *state)
 336 {
 337         if (tree->session->transport->negotiate.protocol <= PROTOCOL_LANMAN1)
 338                 return smbcli_list_old(tree, Mask, attribute, fn, state);
 339         return smbcli_list_new(tree, Mask, attribute, RAW_SEARCH_GENERIC, fn, state);
 340 }