source4/libcli/smb2/util.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    SMB2 client utility functions
   5
   6    Copyright (C) Andrew Tridgell 2005
   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 "libcli/raw/libcliraw.h"
  24 #include "libcli/raw/raw_proto.h"
  25 #include "libcli/smb2/smb2.h"
  26 #include "libcli/smb2/smb2_calls.h"
  27 #include "libcli/smb_composite/smb_composite.h"
  28
  29 /*
  30   simple close wrapper with SMB2
  31 */
  32 NTSTATUS smb2_util_close(struct smb2_tree *tree, struct smb2_handle h)
  33 {
  34         struct smb2_close c;
  35
  36         ZERO_STRUCT(c);
  37         c.in.file.handle = h;
  38
  39         return smb2_close(tree, &c);
  40 }
  41
  42 /*
  43   unlink a file with SMB2
  44 */
  45 NTSTATUS smb2_util_unlink(struct smb2_tree *tree, const char *fname)
  46 {
  47         union smb_unlink io;
  48
  49         ZERO_STRUCT(io);
  50         io.unlink.in.pattern = fname;
  51
  52         return smb2_composite_unlink(tree, &io);
  53 }
  54
  55
  56 /*
  57   rmdir with SMB2
  58 */
  59 NTSTATUS smb2_util_rmdir(struct smb2_tree *tree, const char *dname)
  60 {
  61         struct smb_rmdir io;
  62
  63         ZERO_STRUCT(io);
  64         io.in.path = dname;
  65
  66         return smb2_composite_rmdir(tree, &io);
  67 }
  68
  69
  70 /*
  71   mkdir with SMB2
  72 */
  73 NTSTATUS smb2_util_mkdir(struct smb2_tree *tree, const char *dname)
  74 {
  75         union smb_mkdir io;
  76
  77         ZERO_STRUCT(io);
  78         io.mkdir.level = RAW_MKDIR_MKDIR;
  79         io.mkdir.in.path = dname;
  80
  81         return smb2_composite_mkdir(tree, &io);
  82 }
  83
  84
  85 /*
  86   set file attribute with SMB2
  87 */
  88 NTSTATUS smb2_util_setatr(struct smb2_tree *tree, const char *name, uint32_t attrib)
  89 {
  90         union smb_setfileinfo io;
  91
  92         ZERO_STRUCT(io);
  93         io.basic_info.level = RAW_SFILEINFO_BASIC_INFORMATION;
  94         io.basic_info.in.file.path = name;
  95         io.basic_info.in.attrib = attrib;
  96
  97         return smb2_composite_setpathinfo(tree, &io);
  98 }
  99
 100
 101
 102
 103 /*
 104    recursively descend a tree deleting all files
 105    returns the number of files deleted, or -1 on error
 106 */
 107 int smb2_deltree(struct smb2_tree *tree, const char *dname)
 108 {
 109         NTSTATUS status;
 110         uint32_t total_deleted = 0;
 111         uint_t count, i;
 112         union smb_search_data *list;
 113         TALLOC_CTX *tmp_ctx = talloc_new(tree);
 114         struct smb2_find f;
 115         struct smb2_create create_parm;
 116         bool did_delete;
 117
 118         /* it might be a file */
 119         status = smb2_util_unlink(tree, dname);
 120         if (NT_STATUS_IS_OK(status)) {
 121                 talloc_free(tmp_ctx);
 122                 return 1;
 123         }
 124         if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND) ||
 125             NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_PATH_NOT_FOUND) ||
 126             NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_FILE)) {
 127                 talloc_free(tmp_ctx);
 128                 return 0;
 129         }
 130
 131         if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
 132                 /* it could be read-only */
 133                 status = smb2_util_setatr(tree, dname, FILE_ATTRIBUTE_NORMAL);
 134                 status = smb2_util_unlink(tree, dname);
 135         }
 136         if (NT_STATUS_IS_OK(status)) {
 137                 talloc_free(tmp_ctx);
 138                 return 1;
 139         }
 140
 141         ZERO_STRUCT(create_parm);
 142         create_parm.in.desired_access = SEC_FILE_READ_DATA;
 143         create_parm.in.share_access =
 144                 NTCREATEX_SHARE_ACCESS_READ|
 145                 NTCREATEX_SHARE_ACCESS_WRITE;
 146         create_parm.in.create_options = NTCREATEX_OPTIONS_DIRECTORY;
 147         create_parm.in.create_disposition = NTCREATEX_DISP_OPEN;
 148         create_parm.in.fname = dname;
 149
 150         status = smb2_create(tree, tmp_ctx, &create_parm);
 151         if (NT_STATUS_IS_ERR(status)) {
 152                 DEBUG(2,("Failed to open %s - %s\n", dname, nt_errstr(status)));
 153                 talloc_free(tmp_ctx);
 154                 return -1;
 155         }
 156
 157
 158         do {
 159                 did_delete = false;
 160
 161                 ZERO_STRUCT(f);
 162                 f.in.file.handle       = create_parm.out.file.handle;
 163                 f.in.max_response_size = 0x10000;
 164                 f.in.level             = SMB2_FIND_NAME_INFO;
 165                 f.in.pattern           = "*";
 166
 167                 status = smb2_find_level(tree, tmp_ctx, &f, &count, &list);
 168                 if (NT_STATUS_IS_ERR(status)) {
 169                         DEBUG(2,("Failed to list %s - %s\n",
 170                                  dname, nt_errstr(status)));
 171                         smb2_util_close(tree, create_parm.out.file.handle);
 172                         talloc_free(tmp_ctx);
 173                         return -1;
 174                 }
 175
 176                 for (i=0;i<count;i++) {
 177                         char *name;
 178                         if (strcmp(".", list[i].name_info.name.s) == 0 ||
 179                             strcmp("..", list[i].name_info.name.s) == 0) {
 180                                 continue;
 181                         }
 182                         name = talloc_asprintf(tmp_ctx, "%s\\%s", dname, list[i].name_info.name.s);
 183                         status = smb2_util_unlink(tree, name);
 184                         if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
 185                                 /* it could be read-only */
 186                                 status = smb2_util_setatr(tree, name, FILE_ATTRIBUTE_NORMAL);
 187                                 status = smb2_util_unlink(tree, name);
 188                         }
 189
 190                         if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) {
 191                                 int ret;
 192                                 ret = smb2_deltree(tree, name);
 193                                 if (ret > 0) total_deleted += ret;
 194                         }
 195                         talloc_free(name);
 196                         if (NT_STATUS_IS_OK(status)) {
 197                                 total_deleted++;
 198                                 did_delete = true;
 199                         }
 200                 }
 201         } while (did_delete);
 202
 203         smb2_util_close(tree, create_parm.out.file.handle);
 204
 205         status = smb2_util_rmdir(tree, dname);
 206         if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
 207                 /* it could be read-only */
 208                 status = smb2_util_setatr(tree, dname, FILE_ATTRIBUTE_NORMAL);
 209                 status = smb2_util_rmdir(tree, dname);
 210         }
 211
 212         if (NT_STATUS_IS_ERR(status)) {
 213                 DEBUG(2,("Failed to delete %s - %s\n",
 214                          dname, nt_errstr(status)));
 215                 talloc_free(tmp_ctx);
 216                 return -1;
 217         }
 218
 219         talloc_free(tmp_ctx);
 220
 221         return total_deleted;
 222 }