source4/smb_server/smb2/fileinfo.c

   1 /*
   2    Unix SMB2 implementation.
   3
   4    Copyright (C) Stefan Metzmacher      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 "libcli/smb2/smb2.h"
  22 #include "libcli/smb2/smb2_calls.h"
  23 #include "smb_server/smb_server.h"
  24 #include "smb_server/smb2/smb2_server.h"
  25 #include "ntvfs/ntvfs.h"
  26 #include "librpc/gen_ndr/ndr_security.h"
  27
  28 struct smb2srv_getinfo_op {
  29         struct smb2srv_request *req;
  30         struct smb2_getinfo *info;
  31         void *io_ptr;
  32         NTSTATUS (*send_fn)(struct smb2srv_getinfo_op *op);
  33 };
  34
  35 static void smb2srv_getinfo_send(struct ntvfs_request *ntvfs)
  36 {
  37         struct smb2srv_getinfo_op *op;
  38         struct smb2srv_request *req;
  39
  40         /*
  41          * SMB2 uses NT_STATUS_INVALID_INFO_CLASS
  42          * so we need to translated it here
  43          */
  44         if (NT_STATUS_EQUAL(NT_STATUS_INVALID_LEVEL, ntvfs->async_states->status)) {
  45                 ntvfs->async_states->status = NT_STATUS_INVALID_INFO_CLASS;
  46         }
  47
  48         SMB2SRV_CHECK_ASYNC_STATUS(op, struct smb2srv_getinfo_op);
  49
  50         ZERO_STRUCT(op->info->out);
  51         if (op->send_fn) {
  52                 SMB2SRV_CHECK(op->send_fn(op));
  53         }
  54
  55         if (op->info->in.output_buffer_length < op->info->out.blob.length) {
  56                 smb2srv_send_error(req,  NT_STATUS_INFO_LENGTH_MISMATCH);
  57                 return;
  58         }
  59
  60         SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x08, true, op->info->out.blob.length));
  61
  62         SMB2SRV_CHECK(smb2_push_o16s32_blob(&req->out, 0x02, op->info->out.blob));
  63         SSVAL(req->out.body,    0x06,   0);
  64
  65         smb2srv_send_reply(req);
  66 }
  67
  68 static NTSTATUS smb2srv_getinfo_file_send(struct smb2srv_getinfo_op *op)
  69 {
  70         union smb_fileinfo *io = talloc_get_type(op->io_ptr, union smb_fileinfo);
  71         NTSTATUS status;
  72
  73         status = smbsrv_push_passthru_fileinfo(op->req,
  74                                                &op->info->out.blob,
  75                                                io->generic.level, io,
  76                                                STR_UNICODE);
  77         NT_STATUS_NOT_OK_RETURN(status);
  78
  79         return NT_STATUS_OK;
  80 }
  81
  82 static NTSTATUS smb2srv_getinfo_file(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
  83 {
  84         union smb_fileinfo *io;
  85         uint16_t level;
  86
  87         io = talloc(op, union smb_fileinfo);
  88         NT_STATUS_HAVE_NO_MEMORY(io);
  89
  90         level = op->info->in.info_type | (op->info->in.info_class << 8);
  91         switch (level) {
  92         case RAW_FILEINFO_SMB2_ALL_EAS:
  93                 io->all_eas.level               = level;
  94                 io->all_eas.in.file.ntvfs       = op->info->in.file.ntvfs;
  95                 io->all_eas.in.continue_flags   = op->info->in.getinfo_flags;
  96                 break;
  97
  98         case RAW_FILEINFO_SMB2_ALL_INFORMATION:
  99                 io->all_info2.level             = level;
 100                 io->all_info2.in.file.ntvfs     = op->info->in.file.ntvfs;
 101                 break;
 102
 103         default:
 104                 /* the rest directly maps to the passthru levels */
 105                 io->generic.level               = smb2_level + 1000;
 106                 io->generic.in.file.ntvfs       = op->info->in.file.ntvfs;
 107                 break;
 108         }
 109
 110         op->io_ptr      = io;
 111         op->send_fn     = smb2srv_getinfo_file_send;
 112
 113         return ntvfs_qfileinfo(op->req->ntvfs, io);
 114 }
 115
 116 static NTSTATUS smb2srv_getinfo_fs_send(struct smb2srv_getinfo_op *op)
 117 {
 118         union smb_fsinfo *io = talloc_get_type(op->io_ptr, union smb_fsinfo);
 119         NTSTATUS status;
 120
 121         status = smbsrv_push_passthru_fsinfo(op->req,
 122                                              &op->info->out.blob,
 123                                              io->generic.level, io,
 124                                              STR_UNICODE);
 125         NT_STATUS_NOT_OK_RETURN(status);
 126
 127         return NT_STATUS_OK;
 128 }
 129
 130 static NTSTATUS smb2srv_getinfo_fs(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
 131 {
 132         union smb_fsinfo *io;
 133
 134         io = talloc(op, union smb_fsinfo);
 135         NT_STATUS_HAVE_NO_MEMORY(io);
 136
 137         /* the rest directly maps to the passthru levels */
 138         io->generic.level       = smb2_level + 1000;
 139
 140         /* TODO: allow qfsinfo only the share root directory handle */
 141
 142         op->io_ptr      = io;
 143         op->send_fn     = smb2srv_getinfo_fs_send;
 144
 145         return ntvfs_fsinfo(op->req->ntvfs, io);
 146 }
 147
 148 static NTSTATUS smb2srv_getinfo_security_send(struct smb2srv_getinfo_op *op)
 149 {
 150         union smb_fileinfo *io = talloc_get_type(op->io_ptr, union smb_fileinfo);
 151         enum ndr_err_code ndr_err;
 152
 153         ndr_err = ndr_push_struct_blob(&op->info->out.blob, op->req, NULL,
 154                                        io->query_secdesc.out.sd,
 155                                        (ndr_push_flags_fn_t)ndr_push_security_descriptor);
 156         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 157                 return ndr_map_error2ntstatus(ndr_err);
 158         }
 159
 160         return NT_STATUS_OK;
 161 }
 162
 163 static NTSTATUS smb2srv_getinfo_security(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
 164 {
 165         union smb_fileinfo *io;
 166
 167         switch (smb2_level) {
 168         case 0x00:
 169                 io = talloc(op, union smb_fileinfo);
 170                 NT_STATUS_HAVE_NO_MEMORY(io);
 171
 172                 io->query_secdesc.level                 = RAW_FILEINFO_SEC_DESC;
 173                 io->query_secdesc.in.file.ntvfs         = op->info->in.file.ntvfs;
 174                 io->query_secdesc.in.secinfo_flags      = op->info->in.additional_information;
 175
 176                 op->io_ptr      = io;
 177                 op->send_fn     = smb2srv_getinfo_security_send;
 178
 179                 return ntvfs_qfileinfo(op->req->ntvfs, io);
 180         }
 181
 182         return NT_STATUS_INVALID_PARAMETER;
 183 }
 184
 185 static NTSTATUS smb2srv_getinfo_backend(struct smb2srv_getinfo_op *op)
 186 {
 187         switch (op->info->in.info_type) {
 188         case SMB2_GETINFO_FILE:
 189                 return smb2srv_getinfo_file(op, op->info->in.info_class);
 190
 191         case SMB2_GETINFO_FS:
 192                 return smb2srv_getinfo_fs(op, op->info->in.info_class);
 193
 194         case SMB2_GETINFO_SECURITY:
 195                 return smb2srv_getinfo_security(op, op->info->in.info_class);
 196
 197         case SMB2_GETINFO_QUOTA:
 198                 return NT_STATUS_NOT_SUPPORTED;
 199         }
 200
 201         return NT_STATUS_INVALID_PARAMETER;
 202 }
 203
 204 void smb2srv_getinfo_recv(struct smb2srv_request *req)
 205 {
 206         struct smb2_getinfo *info;
 207         struct smb2srv_getinfo_op *op;
 208
 209         SMB2SRV_CHECK_BODY_SIZE(req, 0x28, true);
 210         SMB2SRV_TALLOC_IO_PTR(info, struct smb2_getinfo);
 211         /* this overwrites req->io_ptr !*/
 212         SMB2SRV_TALLOC_IO_PTR(op, struct smb2srv_getinfo_op);
 213         op->req         = req;
 214         op->info        = info;
 215         op->io_ptr      = NULL;
 216         op->send_fn     = NULL;
 217         SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_getinfo_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
 218
 219         info->in.info_type              = CVAL(req->in.body, 0x02);
 220         info->in.info_class             = CVAL(req->in.body, 0x03);
 221         info->in.output_buffer_length   = IVAL(req->in.body, 0x04);
 222         info->in.reserved               = IVAL(req->in.body, 0x0C);
 223         info->in.additional_information = IVAL(req->in.body, 0x10);
 224         info->in.getinfo_flags          = IVAL(req->in.body, 0x14);
 225         info->in.file.ntvfs             = smb2srv_pull_handle(req, req->in.body, 0x18);
 226         SMB2SRV_CHECK(smb2_pull_o16As32_blob(&req->in, op,
 227                                             req->in.body+0x08, &info->in.blob));
 228
 229         SMB2SRV_CHECK_FILE_HANDLE(info->in.file.ntvfs);
 230         SMB2SRV_CALL_NTVFS_BACKEND(smb2srv_getinfo_backend(op));
 231 }
 232
 233 struct smb2srv_setinfo_op {
 234         struct smb2srv_request *req;
 235         struct smb2_setinfo *info;
 236 };
 237
 238 static void smb2srv_setinfo_send(struct ntvfs_request *ntvfs)
 239 {
 240         struct smb2srv_setinfo_op *op;
 241         struct smb2srv_request *req;
 242
 243         /*
 244          * SMB2 uses NT_STATUS_INVALID_INFO_CLASS
 245          * so we need to translated it here
 246          */
 247         if (NT_STATUS_EQUAL(NT_STATUS_INVALID_LEVEL, ntvfs->async_states->status)) {
 248                 ntvfs->async_states->status = NT_STATUS_INVALID_INFO_CLASS;
 249         }
 250
 251         SMB2SRV_CHECK_ASYNC_STATUS(op, struct smb2srv_setinfo_op);
 252
 253         SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x02, false, 0));
 254
 255         smb2srv_send_reply(req);
 256 }
 257
 258 static NTSTATUS smb2srv_setinfo_file(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 259 {
 260         union smb_setfileinfo *io;
 261         NTSTATUS status;
 262
 263         io = talloc(op, union smb_setfileinfo);
 264         NT_STATUS_HAVE_NO_MEMORY(io);
 265
 266         /* the levels directly map to the passthru levels */
 267         io->generic.level               = smb2_level + 1000;
 268         io->generic.in.file.ntvfs       = op->info->in.file.ntvfs;
 269
 270         /* handle cases that don't map directly */
 271         if (io->generic.level == RAW_SFILEINFO_RENAME_INFORMATION) {
 272                 io->generic.level = RAW_SFILEINFO_RENAME_INFORMATION_SMB2;
 273         }
 274
 275         status = smbsrv_pull_passthru_sfileinfo(io, io->generic.level, io,
 276                                                 &op->info->in.blob,
 277                                                 STR_UNICODE, &op->req->in.bufinfo);
 278         NT_STATUS_NOT_OK_RETURN(status);
 279
 280         return ntvfs_setfileinfo(op->req->ntvfs, io);
 281 }
 282
 283 static NTSTATUS smb2srv_setinfo_fs(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 284 {
 285         switch (smb2_level) {
 286         case 0x02:
 287                 return NT_STATUS_NOT_IMPLEMENTED;
 288
 289         case 0x06:
 290                 return NT_STATUS_ACCESS_DENIED;
 291
 292         case 0x08:
 293                 return NT_STATUS_ACCESS_DENIED;
 294
 295         case 0x0A:
 296                 return NT_STATUS_ACCESS_DENIED;
 297         }
 298
 299         return NT_STATUS_INVALID_INFO_CLASS;
 300 }
 301
 302 static NTSTATUS smb2srv_setinfo_security(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 303 {
 304         union smb_setfileinfo *io;
 305         enum ndr_err_code ndr_err;
 306
 307         switch (smb2_level) {
 308         case 0x00:
 309                 io = talloc(op, union smb_setfileinfo);
 310                 NT_STATUS_HAVE_NO_MEMORY(io);
 311
 312                 io->set_secdesc.level            = RAW_SFILEINFO_SEC_DESC;
 313                 io->set_secdesc.in.file.ntvfs    = op->info->in.file.ntvfs;
 314                 io->set_secdesc.in.secinfo_flags = op->info->in.flags;
 315
 316                 io->set_secdesc.in.sd = talloc(io, struct security_descriptor);
 317                 NT_STATUS_HAVE_NO_MEMORY(io->set_secdesc.in.sd);
 318
 319                 ndr_err = ndr_pull_struct_blob(&op->info->in.blob, io, NULL,
 320                                                io->set_secdesc.in.sd,
 321                                                (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 322                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 323                         return ndr_map_error2ntstatus(ndr_err);
 324                 }
 325
 326                 return ntvfs_setfileinfo(op->req->ntvfs, io);
 327         }
 328
 329         return NT_STATUS_INVALID_INFO_CLASS;
 330 }
 331
 332 static NTSTATUS smb2srv_setinfo_backend(struct smb2srv_setinfo_op *op)
 333 {
 334         uint8_t smb2_class;
 335         uint8_t smb2_level;
 336
 337         smb2_class = 0xFF & op->info->in.level;
 338         smb2_level = 0xFF & (op->info->in.level>>8);
 339
 340         switch (smb2_class) {
 341         case SMB2_GETINFO_FILE:
 342                 return smb2srv_setinfo_file(op, smb2_level);
 343
 344         case SMB2_GETINFO_FS:
 345                 return smb2srv_setinfo_fs(op, smb2_level);
 346
 347         case SMB2_GETINFO_SECURITY:
 348                 return smb2srv_setinfo_security(op, smb2_level);
 349
 350         case 0x04:
 351                 return NT_STATUS_NOT_SUPPORTED;
 352         }
 353
 354         return NT_STATUS_INVALID_PARAMETER;
 355 }
 356
 357 void smb2srv_setinfo_recv(struct smb2srv_request *req)
 358 {
 359         struct smb2_setinfo *info;
 360         struct smb2srv_setinfo_op *op;
 361
 362         SMB2SRV_CHECK_BODY_SIZE(req, 0x20, true);
 363         SMB2SRV_TALLOC_IO_PTR(info, struct smb2_setinfo);
 364         /* this overwrites req->io_ptr !*/
 365         SMB2SRV_TALLOC_IO_PTR(op, struct smb2srv_setinfo_op);
 366         op->req         = req;
 367         op->info        = info;
 368         SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_setinfo_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
 369
 370         info->in.level                  = SVAL(req->in.body, 0x02);
 371         SMB2SRV_CHECK(smb2_pull_s32o16_blob(&req->in, info, req->in.body+0x04, &info->in.blob));
 372         info->in.flags                  = IVAL(req->in.body, 0x0C);
 373         info->in.file.ntvfs             = smb2srv_pull_handle(req, req->in.body, 0x10);
 374
 375         SMB2SRV_CHECK_FILE_HANDLE(info->in.file.ntvfs);
 376         SMB2SRV_CALL_NTVFS_BACKEND(smb2srv_setinfo_backend(op));
 377 }