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/service_smb_proto.h"
  25 #include "smb_server/smb2/smb2_server.h"
  26 #include "ntvfs/ntvfs.h"
  27 #include "librpc/gen_ndr/ndr_security.h"
  28
  29 struct smb2srv_getinfo_op {
  30         struct smb2srv_request *req;
  31         struct smb2_getinfo *info;
  32         void *io_ptr;
  33         NTSTATUS (*send_fn)(struct smb2srv_getinfo_op *op);
  34 };
  35
  36 static void smb2srv_getinfo_send(struct ntvfs_request *ntvfs)
  37 {
  38         struct smb2srv_getinfo_op *op;
  39         struct smb2srv_request *req;
  40
  41         /*
  42          * SMB2 uses NT_STATUS_INVALID_INFO_CLASS
  43          * so we need to translated it here
  44          */
  45         if (NT_STATUS_EQUAL(NT_STATUS_INVALID_LEVEL, ntvfs->async_states->status)) {
  46                 ntvfs->async_states->status = NT_STATUS_INVALID_INFO_CLASS;
  47         }
  48
  49         SMB2SRV_CHECK_ASYNC_STATUS(op, struct smb2srv_getinfo_op);
  50
  51         ZERO_STRUCT(op->info->out);
  52         if (op->send_fn) {
  53                 SMB2SRV_CHECK(op->send_fn(op));
  54         }
  55
  56         if (op->info->in.output_buffer_length < op->info->out.blob.length) {
  57                 smb2srv_send_error(req,  NT_STATUS_INFO_LENGTH_MISMATCH);
  58                 return;
  59         }
  60
  61         SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x08, true, op->info->out.blob.length));
  62
  63         SMB2SRV_CHECK(smb2_push_o16s32_blob(&req->out, 0x02, op->info->out.blob));
  64         SSVAL(req->out.body,    0x06,   0);
  65
  66         smb2srv_send_reply(req);
  67 }
  68
  69 static NTSTATUS smb2srv_getinfo_file_send(struct smb2srv_getinfo_op *op)
  70 {
  71         union smb_fileinfo *io = talloc_get_type(op->io_ptr, union smb_fileinfo);
  72         NTSTATUS status;
  73
  74         status = smbsrv_push_passthru_fileinfo(op->req,
  75                                                &op->info->out.blob,
  76                                                io->generic.level, io,
  77                                                STR_UNICODE);
  78         NT_STATUS_NOT_OK_RETURN(status);
  79
  80         return NT_STATUS_OK;
  81 }
  82
  83 static NTSTATUS smb2srv_getinfo_file(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
  84 {
  85         union smb_fileinfo *io;
  86         uint16_t level;
  87
  88         io = talloc(op, union smb_fileinfo);
  89         NT_STATUS_HAVE_NO_MEMORY(io);
  90
  91         level = op->info->in.info_type | (op->info->in.info_class << 8);
  92         switch (level) {
  93         case RAW_FILEINFO_SMB2_ALL_EAS:
  94                 io->all_eas.level               = level;
  95                 io->all_eas.in.file.ntvfs       = op->info->in.file.ntvfs;
  96                 io->all_eas.in.continue_flags   = op->info->in.getinfo_flags;
  97                 break;
  98
  99         case RAW_FILEINFO_SMB2_ALL_INFORMATION:
 100                 io->all_info2.level             = level;
 101                 io->all_info2.in.file.ntvfs     = op->info->in.file.ntvfs;
 102                 break;
 103
 104         default:
 105                 /* the rest directly maps to the passthru levels */
 106                 io->generic.level               = smb2_level + 1000;
 107                 io->generic.in.file.ntvfs       = op->info->in.file.ntvfs;
 108                 break;
 109         }
 110
 111         op->io_ptr      = io;
 112         op->send_fn     = smb2srv_getinfo_file_send;
 113
 114         return ntvfs_qfileinfo(op->req->ntvfs, io);
 115 }
 116
 117 static NTSTATUS smb2srv_getinfo_fs_send(struct smb2srv_getinfo_op *op)
 118 {
 119         union smb_fsinfo *io = talloc_get_type(op->io_ptr, union smb_fsinfo);
 120         NTSTATUS status;
 121
 122         status = smbsrv_push_passthru_fsinfo(op->req,
 123                                              &op->info->out.blob,
 124                                              io->generic.level, io,
 125                                              STR_UNICODE);
 126         NT_STATUS_NOT_OK_RETURN(status);
 127
 128         return NT_STATUS_OK;
 129 }
 130
 131 static NTSTATUS smb2srv_getinfo_fs(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
 132 {
 133         union smb_fsinfo *io;
 134
 135         io = talloc(op, union smb_fsinfo);
 136         NT_STATUS_HAVE_NO_MEMORY(io);
 137
 138         /* the rest directly maps to the passthru levels */
 139         io->generic.level       = smb2_level + 1000;
 140
 141         /* TODO: allow qfsinfo only the share root directory handle */
 142
 143         op->io_ptr      = io;
 144         op->send_fn     = smb2srv_getinfo_fs_send;
 145
 146         return ntvfs_fsinfo(op->req->ntvfs, io);
 147 }
 148
 149 static NTSTATUS smb2srv_getinfo_security_send(struct smb2srv_getinfo_op *op)
 150 {
 151         union smb_fileinfo *io = talloc_get_type(op->io_ptr, union smb_fileinfo);
 152         enum ndr_err_code ndr_err;
 153
 154         ndr_err = ndr_push_struct_blob(&op->info->out.blob, op->req, NULL,
 155                                        io->query_secdesc.out.sd,
 156                                        (ndr_push_flags_fn_t)ndr_push_security_descriptor);
 157         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 158                 return ndr_map_error2ntstatus(ndr_err);
 159         }
 160
 161         return NT_STATUS_OK;
 162 }
 163
 164 static NTSTATUS smb2srv_getinfo_security(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
 165 {
 166         union smb_fileinfo *io;
 167
 168         switch (smb2_level) {
 169         case 0x00:
 170                 io = talloc(op, union smb_fileinfo);
 171                 NT_STATUS_HAVE_NO_MEMORY(io);
 172
 173                 io->query_secdesc.level                 = RAW_FILEINFO_SEC_DESC;
 174                 io->query_secdesc.in.file.ntvfs         = op->info->in.file.ntvfs;
 175                 io->query_secdesc.in.secinfo_flags      = op->info->in.additional_information;
 176
 177                 op->io_ptr      = io;
 178                 op->send_fn     = smb2srv_getinfo_security_send;
 179
 180                 return ntvfs_qfileinfo(op->req->ntvfs, io);
 181         }
 182
 183         return NT_STATUS_INVALID_PARAMETER;
 184 }
 185
 186 static NTSTATUS smb2srv_getinfo_backend(struct smb2srv_getinfo_op *op)
 187 {
 188         switch (op->info->in.info_type) {
 189         case SMB2_GETINFO_FILE:
 190                 return smb2srv_getinfo_file(op, op->info->in.info_class);
 191
 192         case SMB2_GETINFO_FS:
 193                 return smb2srv_getinfo_fs(op, op->info->in.info_class);
 194
 195         case SMB2_GETINFO_SECURITY:
 196                 return smb2srv_getinfo_security(op, op->info->in.info_class);
 197
 198         case SMB2_GETINFO_QUOTA:
 199                 return NT_STATUS_NOT_SUPPORTED;
 200         }
 201
 202         return NT_STATUS_INVALID_PARAMETER;
 203 }
 204
 205 void smb2srv_getinfo_recv(struct smb2srv_request *req)
 206 {
 207         struct smb2_getinfo *info;
 208         struct smb2srv_getinfo_op *op;
 209
 210         SMB2SRV_CHECK_BODY_SIZE(req, 0x28, true);
 211         SMB2SRV_TALLOC_IO_PTR(info, struct smb2_getinfo);
 212         /* this overwrites req->io_ptr !*/
 213         SMB2SRV_TALLOC_IO_PTR(op, struct smb2srv_getinfo_op);
 214         op->req         = req;
 215         op->info        = info;
 216         op->io_ptr      = NULL;
 217         op->send_fn     = NULL;
 218         SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_getinfo_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
 219
 220         info->in.info_type              = CVAL(req->in.body, 0x02);
 221         info->in.info_class             = CVAL(req->in.body, 0x03);
 222         info->in.output_buffer_length   = IVAL(req->in.body, 0x04);
 223         info->in.reserved               = IVAL(req->in.body, 0x0C);
 224         info->in.additional_information = IVAL(req->in.body, 0x10);
 225         info->in.getinfo_flags          = IVAL(req->in.body, 0x14);
 226         info->in.file.ntvfs             = smb2srv_pull_handle(req, req->in.body, 0x18);
 227         SMB2SRV_CHECK(smb2_pull_o16As32_blob(&req->in, op,
 228                                             req->in.body+0x08, &info->in.blob));
 229
 230         SMB2SRV_CHECK_FILE_HANDLE(info->in.file.ntvfs);
 231         SMB2SRV_CALL_NTVFS_BACKEND(smb2srv_getinfo_backend(op));
 232 }
 233
 234 struct smb2srv_setinfo_op {
 235         struct smb2srv_request *req;
 236         struct smb2_setinfo *info;
 237 };
 238
 239 static void smb2srv_setinfo_send(struct ntvfs_request *ntvfs)
 240 {
 241         struct smb2srv_setinfo_op *op;
 242         struct smb2srv_request *req;
 243
 244         /*
 245          * SMB2 uses NT_STATUS_INVALID_INFO_CLASS
 246          * so we need to translated it here
 247          */
 248         if (NT_STATUS_EQUAL(NT_STATUS_INVALID_LEVEL, ntvfs->async_states->status)) {
 249                 ntvfs->async_states->status = NT_STATUS_INVALID_INFO_CLASS;
 250         }
 251
 252         SMB2SRV_CHECK_ASYNC_STATUS(op, struct smb2srv_setinfo_op);
 253
 254         SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x02, false, 0));
 255
 256         smb2srv_send_reply(req);
 257 }
 258
 259 static NTSTATUS smb2srv_setinfo_file(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 260 {
 261         union smb_setfileinfo *io;
 262         NTSTATUS status;
 263
 264         io = talloc(op, union smb_setfileinfo);
 265         NT_STATUS_HAVE_NO_MEMORY(io);
 266
 267         /* the levels directly map to the passthru levels */
 268         io->generic.level               = smb2_level + 1000;
 269         io->generic.in.file.ntvfs       = op->info->in.file.ntvfs;
 270
 271         /* handle cases that don't map directly */
 272         if (io->generic.level == RAW_SFILEINFO_RENAME_INFORMATION) {
 273                 io->generic.level = RAW_SFILEINFO_RENAME_INFORMATION_SMB2;
 274         }
 275
 276         status = smbsrv_pull_passthru_sfileinfo(io, io->generic.level, io,
 277                                                 &op->info->in.blob,
 278                                                 STR_UNICODE, &op->req->in.bufinfo);
 279         NT_STATUS_NOT_OK_RETURN(status);
 280
 281         return ntvfs_setfileinfo(op->req->ntvfs, io);
 282 }
 283
 284 static NTSTATUS smb2srv_setinfo_fs(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 285 {
 286         switch (smb2_level) {
 287         case 0x02:
 288                 return NT_STATUS_NOT_IMPLEMENTED;
 289
 290         case 0x06:
 291                 return NT_STATUS_ACCESS_DENIED;
 292
 293         case 0x08:
 294                 return NT_STATUS_ACCESS_DENIED;
 295
 296         case 0x0A:
 297                 return NT_STATUS_ACCESS_DENIED;
 298         }
 299
 300         return NT_STATUS_INVALID_INFO_CLASS;
 301 }
 302
 303 static NTSTATUS smb2srv_setinfo_security(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 304 {
 305         union smb_setfileinfo *io;
 306         enum ndr_err_code ndr_err;
 307
 308         switch (smb2_level) {
 309         case 0x00:
 310                 io = talloc(op, union smb_setfileinfo);
 311                 NT_STATUS_HAVE_NO_MEMORY(io);
 312
 313                 io->set_secdesc.level            = RAW_SFILEINFO_SEC_DESC;
 314                 io->set_secdesc.in.file.ntvfs    = op->info->in.file.ntvfs;
 315                 io->set_secdesc.in.secinfo_flags = op->info->in.flags;
 316
 317                 io->set_secdesc.in.sd = talloc(io, struct security_descriptor);
 318                 NT_STATUS_HAVE_NO_MEMORY(io->set_secdesc.in.sd);
 319
 320                 ndr_err = ndr_pull_struct_blob(&op->info->in.blob, io, NULL,
 321                                                io->set_secdesc.in.sd,
 322                                                (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 323                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 324                         return ndr_map_error2ntstatus(ndr_err);
 325                 }
 326
 327                 return ntvfs_setfileinfo(op->req->ntvfs, io);
 328         }
 329
 330         return NT_STATUS_INVALID_INFO_CLASS;
 331 }
 332
 333 static NTSTATUS smb2srv_setinfo_backend(struct smb2srv_setinfo_op *op)
 334 {
 335         uint8_t smb2_class;
 336         uint8_t smb2_level;
 337
 338         smb2_class = 0xFF & op->info->in.level;
 339         smb2_level = 0xFF & (op->info->in.level>>8);
 340
 341         switch (smb2_class) {
 342         case SMB2_GETINFO_FILE:
 343                 return smb2srv_setinfo_file(op, smb2_level);
 344
 345         case SMB2_GETINFO_FS:
 346                 return smb2srv_setinfo_fs(op, smb2_level);
 347
 348         case SMB2_GETINFO_SECURITY:
 349                 return smb2srv_setinfo_security(op, smb2_level);
 350
 351         case 0x04:
 352                 return NT_STATUS_NOT_SUPPORTED;
 353         }
 354
 355         return NT_STATUS_INVALID_PARAMETER;
 356 }
 357
 358 void smb2srv_setinfo_recv(struct smb2srv_request *req)
 359 {
 360         struct smb2_setinfo *info;
 361         struct smb2srv_setinfo_op *op;
 362
 363         SMB2SRV_CHECK_BODY_SIZE(req, 0x20, true);
 364         SMB2SRV_TALLOC_IO_PTR(info, struct smb2_setinfo);
 365         /* this overwrites req->io_ptr !*/
 366         SMB2SRV_TALLOC_IO_PTR(op, struct smb2srv_setinfo_op);
 367         op->req         = req;
 368         op->info        = info;
 369         SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_setinfo_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
 370
 371         info->in.level                  = SVAL(req->in.body, 0x02);
 372         SMB2SRV_CHECK(smb2_pull_s32o16_blob(&req->in, info, req->in.body+0x04, &info->in.blob));
 373         info->in.flags                  = IVAL(req->in.body, 0x0C);
 374         info->in.file.ntvfs             = smb2srv_pull_handle(req, req->in.body, 0x10);
 375
 376         SMB2SRV_CHECK_FILE_HANDLE(info->in.file.ntvfs);
 377         SMB2SRV_CALL_NTVFS_BACKEND(smb2srv_setinfo_backend(op));
 378 }