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         SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x08, true, op->info->out.blob.length));
  57
  58         /* TODO: this is maybe a o16s32_blob */
  59         SMB2SRV_CHECK(smb2_push_o16s16_blob(&req->out, 0x02, op->info->out.blob));
  60         SSVAL(req->out.body,    0x06,   0);
  61
  62         smb2srv_send_reply(req);
  63 }
  64
  65 static NTSTATUS smb2srv_getinfo_file_send(struct smb2srv_getinfo_op *op)
  66 {
  67         union smb_fileinfo *io = talloc_get_type(op->io_ptr, union smb_fileinfo);
  68         NTSTATUS status;
  69
  70         status = smbsrv_push_passthru_fileinfo(op->req,
  71                                                &op->info->out.blob,
  72                                                io->generic.level, io,
  73                                                STR_UNICODE);
  74         NT_STATUS_NOT_OK_RETURN(status);
  75
  76         return NT_STATUS_OK;
  77 }
  78
  79 static NTSTATUS smb2srv_getinfo_file(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
  80 {
  81         union smb_fileinfo *io;
  82         uint16_t level;
  83
  84         io = talloc(op, union smb_fileinfo);
  85         NT_STATUS_HAVE_NO_MEMORY(io);
  86
  87         level = op->info->in.info_type | (op->info->in.info_class << 8);
  88         switch (level) {
  89         case RAW_FILEINFO_SMB2_ALL_EAS:
  90                 io->all_eas.level               = level;
  91                 io->all_eas.in.file.ntvfs       = op->info->in.file.ntvfs;
  92                 io->all_eas.in.continue_flags   = op->info->in.getinfo_flags;
  93                 break;
  94
  95         case RAW_FILEINFO_SMB2_ALL_INFORMATION:
  96                 io->all_info2.level             = level;
  97                 io->all_info2.in.file.ntvfs     = op->info->in.file.ntvfs;
  98                 break;
  99
 100         default:
 101                 /* the rest directly maps to the passthru levels */
 102                 io->generic.level               = smb2_level + 1000;
 103                 io->generic.in.file.ntvfs       = op->info->in.file.ntvfs;
 104                 break;
 105         }
 106
 107         op->io_ptr      = io;
 108         op->send_fn     = smb2srv_getinfo_file_send;
 109
 110         return ntvfs_qfileinfo(op->req->ntvfs, io);
 111 }
 112
 113 static NTSTATUS smb2srv_getinfo_fs_send(struct smb2srv_getinfo_op *op)
 114 {
 115         union smb_fsinfo *io = talloc_get_type(op->io_ptr, union smb_fsinfo);
 116         NTSTATUS status;
 117
 118         status = smbsrv_push_passthru_fsinfo(op->req,
 119                                              &op->info->out.blob,
 120                                              io->generic.level, io,
 121                                              STR_UNICODE);
 122         NT_STATUS_NOT_OK_RETURN(status);
 123
 124         return NT_STATUS_OK;
 125 }
 126
 127 static NTSTATUS smb2srv_getinfo_fs(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
 128 {
 129         union smb_fsinfo *io;
 130
 131         io = talloc(op, union smb_fsinfo);
 132         NT_STATUS_HAVE_NO_MEMORY(io);
 133
 134         /* the rest directly maps to the passthru levels */
 135         io->generic.level       = smb2_level + 1000;
 136
 137         /* TODO: allow qfsinfo only the share root directory handle */
 138
 139         op->io_ptr      = io;
 140         op->send_fn     = smb2srv_getinfo_fs_send;
 141
 142         return ntvfs_fsinfo(op->req->ntvfs, io);
 143 }
 144
 145 static NTSTATUS smb2srv_getinfo_security_send(struct smb2srv_getinfo_op *op)
 146 {
 147         union smb_fileinfo *io = talloc_get_type(op->io_ptr, union smb_fileinfo);
 148         enum ndr_err_code ndr_err;
 149
 150         ndr_err = ndr_push_struct_blob(&op->info->out.blob, op->req, NULL,
 151                                        io->query_secdesc.out.sd,
 152                                        (ndr_push_flags_fn_t)ndr_push_security_descriptor);
 153         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 154                 return ndr_map_error2ntstatus(ndr_err);
 155         }
 156
 157         return NT_STATUS_OK;
 158 }
 159
 160 static NTSTATUS smb2srv_getinfo_security(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
 161 {
 162         union smb_fileinfo *io;
 163
 164         switch (smb2_level) {
 165         case 0x00:
 166                 io = talloc(op, union smb_fileinfo);
 167                 NT_STATUS_HAVE_NO_MEMORY(io);
 168
 169                 io->query_secdesc.level                 = RAW_FILEINFO_SEC_DESC;
 170                 io->query_secdesc.in.file.ntvfs         = op->info->in.file.ntvfs;
 171                 io->query_secdesc.in.secinfo_flags      = op->info->in.additional_information;
 172
 173                 op->io_ptr      = io;
 174                 op->send_fn     = smb2srv_getinfo_security_send;
 175
 176                 return ntvfs_qfileinfo(op->req->ntvfs, io);
 177         }
 178
 179         return NT_STATUS_INVALID_PARAMETER;
 180 }
 181
 182 static NTSTATUS smb2srv_getinfo_backend(struct smb2srv_getinfo_op *op)
 183 {
 184         switch (op->info->in.info_type) {
 185         case SMB2_GETINFO_FILE:
 186                 return smb2srv_getinfo_file(op, op->info->in.info_class);
 187
 188         case SMB2_GETINFO_FS:
 189                 return smb2srv_getinfo_fs(op, op->info->in.info_class);
 190
 191         case SMB2_GETINFO_SECURITY:
 192                 return smb2srv_getinfo_security(op, op->info->in.info_class);
 193
 194         case SMB2_GETINFO_QUOTA:
 195                 return NT_STATUS_NOT_SUPPORTED;
 196         }
 197
 198         return NT_STATUS_INVALID_PARAMETER;
 199 }
 200
 201 void smb2srv_getinfo_recv(struct smb2srv_request *req)
 202 {
 203         struct smb2_getinfo *info;
 204         struct smb2srv_getinfo_op *op;
 205
 206         SMB2SRV_CHECK_BODY_SIZE(req, 0x28, true);
 207         SMB2SRV_TALLOC_IO_PTR(info, struct smb2_getinfo);
 208         /* this overwrites req->io_ptr !*/
 209         SMB2SRV_TALLOC_IO_PTR(op, struct smb2srv_getinfo_op);
 210         op->req         = req;
 211         op->info        = info;
 212         op->io_ptr      = NULL;
 213         op->send_fn     = NULL;
 214         SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_getinfo_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
 215
 216         info->in.info_type              = CVAL(req->in.body, 0x02);
 217         info->in.info_class             = CVAL(req->in.body, 0x03);
 218         info->in.output_buffer_length   = IVAL(req->in.body, 0x04);
 219         info->in.reserved               = IVAL(req->in.body, 0x0C);
 220         info->in.additional_information = IVAL(req->in.body, 0x10);
 221         info->in.getinfo_flags          = IVAL(req->in.body, 0x14);
 222         info->in.file.ntvfs             = smb2srv_pull_handle(req, req->in.body, 0x18);
 223         SMB2SRV_CHECK(smb2_pull_o16As32_blob(&req->in, op,
 224                                             req->in.body+0x08, &info->in.blob));
 225
 226         SMB2SRV_CHECK_FILE_HANDLE(info->in.file.ntvfs);
 227         SMB2SRV_CALL_NTVFS_BACKEND(smb2srv_getinfo_backend(op));
 228 }
 229
 230 struct smb2srv_setinfo_op {
 231         struct smb2srv_request *req;
 232         struct smb2_setinfo *info;
 233 };
 234
 235 static void smb2srv_setinfo_send(struct ntvfs_request *ntvfs)
 236 {
 237         struct smb2srv_setinfo_op *op;
 238         struct smb2srv_request *req;
 239
 240         /*
 241          * SMB2 uses NT_STATUS_INVALID_INFO_CLASS
 242          * so we need to translated it here
 243          */
 244         if (NT_STATUS_EQUAL(NT_STATUS_INVALID_LEVEL, ntvfs->async_states->status)) {
 245                 ntvfs->async_states->status = NT_STATUS_INVALID_INFO_CLASS;
 246         }
 247
 248         SMB2SRV_CHECK_ASYNC_STATUS(op, struct smb2srv_setinfo_op);
 249
 250         SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x02, false, 0));
 251
 252         smb2srv_send_reply(req);
 253 }
 254
 255 static NTSTATUS smb2srv_setinfo_file(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 256 {
 257         union smb_setfileinfo *io;
 258         NTSTATUS status;
 259
 260         io = talloc(op, union smb_setfileinfo);
 261         NT_STATUS_HAVE_NO_MEMORY(io);
 262
 263         /* the levels directly map to the passthru levels */
 264         io->generic.level               = smb2_level + 1000;
 265         io->generic.in.file.ntvfs       = op->info->in.file.ntvfs;
 266
 267         /* handle cases that don't map directly */
 268         if (io->generic.level == RAW_SFILEINFO_RENAME_INFORMATION) {
 269                 io->generic.level = RAW_SFILEINFO_RENAME_INFORMATION_SMB2;
 270         }
 271
 272         status = smbsrv_pull_passthru_sfileinfo(io, io->generic.level, io,
 273                                                 &op->info->in.blob,
 274                                                 STR_UNICODE, &op->req->in.bufinfo);
 275         NT_STATUS_NOT_OK_RETURN(status);
 276
 277         return ntvfs_setfileinfo(op->req->ntvfs, io);
 278 }
 279
 280 static NTSTATUS smb2srv_setinfo_fs(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 281 {
 282         switch (smb2_level) {
 283         case 0x02:
 284                 return NT_STATUS_NOT_IMPLEMENTED;
 285
 286         case 0x06:
 287                 return NT_STATUS_ACCESS_DENIED;
 288
 289         case 0x08:
 290                 return NT_STATUS_ACCESS_DENIED;
 291
 292         case 0x0A:
 293                 return NT_STATUS_ACCESS_DENIED;
 294         }
 295
 296         return NT_STATUS_INVALID_INFO_CLASS;
 297 }
 298
 299 static NTSTATUS smb2srv_setinfo_security(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 300 {
 301         union smb_setfileinfo *io;
 302         enum ndr_err_code ndr_err;
 303
 304         switch (smb2_level) {
 305         case 0x00:
 306                 io = talloc(op, union smb_setfileinfo);
 307                 NT_STATUS_HAVE_NO_MEMORY(io);
 308
 309                 io->set_secdesc.level            = RAW_SFILEINFO_SEC_DESC;
 310                 io->set_secdesc.in.file.ntvfs    = op->info->in.file.ntvfs;
 311                 io->set_secdesc.in.secinfo_flags = op->info->in.flags;
 312
 313                 io->set_secdesc.in.sd = talloc(io, struct security_descriptor);
 314                 NT_STATUS_HAVE_NO_MEMORY(io->set_secdesc.in.sd);
 315
 316                 ndr_err = ndr_pull_struct_blob(&op->info->in.blob, io, NULL,
 317                                                io->set_secdesc.in.sd,
 318                                                (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 319                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 320                         return ndr_map_error2ntstatus(ndr_err);
 321                 }
 322
 323                 return ntvfs_setfileinfo(op->req->ntvfs, io);
 324         }
 325
 326         return NT_STATUS_INVALID_INFO_CLASS;
 327 }
 328
 329 static NTSTATUS smb2srv_setinfo_backend(struct smb2srv_setinfo_op *op)
 330 {
 331         uint8_t smb2_class;
 332         uint8_t smb2_level;
 333
 334         smb2_class = 0xFF & op->info->in.level;
 335         smb2_level = 0xFF & (op->info->in.level>>8);
 336
 337         switch (smb2_class) {
 338         case SMB2_GETINFO_FILE:
 339                 return smb2srv_setinfo_file(op, smb2_level);
 340
 341         case SMB2_GETINFO_FS:
 342                 return smb2srv_setinfo_fs(op, smb2_level);
 343
 344         case SMB2_GETINFO_SECURITY:
 345                 return smb2srv_setinfo_security(op, smb2_level);
 346
 347         case 0x04:
 348                 return NT_STATUS_NOT_SUPPORTED;
 349         }
 350
 351         return NT_STATUS_INVALID_PARAMETER;
 352 }
 353
 354 void smb2srv_setinfo_recv(struct smb2srv_request *req)
 355 {
 356         struct smb2_setinfo *info;
 357         struct smb2srv_setinfo_op *op;
 358
 359         SMB2SRV_CHECK_BODY_SIZE(req, 0x20, true);
 360         SMB2SRV_TALLOC_IO_PTR(info, struct smb2_setinfo);
 361         /* this overwrites req->io_ptr !*/
 362         SMB2SRV_TALLOC_IO_PTR(op, struct smb2srv_setinfo_op);
 363         op->req         = req;
 364         op->info        = info;
 365         SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_setinfo_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
 366
 367         info->in.level                  = SVAL(req->in.body, 0x02);
 368         SMB2SRV_CHECK(smb2_pull_s32o32_blob(&req->in, info, req->in.body+0x04, &info->in.blob));
 369         info->in.flags                  = IVAL(req->in.body, 0x0C);
 370         info->in.file.ntvfs             = smb2srv_pull_handle(req, req->in.body, 0x10);
 371
 372         SMB2SRV_CHECK_FILE_HANDLE(info->in.file.ntvfs);
 373         SMB2SRV_CALL_NTVFS_BACKEND(smb2srv_setinfo_backend(op));
 374 }