source/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
  83         io = talloc(op, union smb_fileinfo);
  84         NT_STATUS_HAVE_NO_MEMORY(io);
  85
  86         switch (op->info->in.level) {
  87         case RAW_FILEINFO_SMB2_ALL_EAS:
  88                 io->all_eas.level               = op->info->in.level;
  89                 io->all_eas.in.file.ntvfs       = op->info->in.file.ntvfs;
  90                 io->all_eas.in.continue_flags   = op->info->in.flags2;
  91                 break;
  92
  93         case RAW_FILEINFO_SMB2_ALL_INFORMATION:
  94                 io->all_info2.level             = op->info->in.level;
  95                 io->all_info2.in.file.ntvfs     = op->info->in.file.ntvfs;
  96                 break;
  97
  98         default:
  99                 /* the rest directly maps to the passthru levels */
 100                 io->generic.level               = smb2_level + 1000;
 101                 io->generic.in.file.ntvfs       = op->info->in.file.ntvfs;
 102                 break;
 103         }
 104
 105         op->io_ptr      = io;
 106         op->send_fn     = smb2srv_getinfo_file_send;
 107
 108         return ntvfs_qfileinfo(op->req->ntvfs, io);
 109 }
 110
 111 static NTSTATUS smb2srv_getinfo_fs_send(struct smb2srv_getinfo_op *op)
 112 {
 113         union smb_fsinfo *io = talloc_get_type(op->io_ptr, union smb_fsinfo);
 114         NTSTATUS status;
 115
 116         status = smbsrv_push_passthru_fsinfo(op->req,
 117                                              &op->info->out.blob,
 118                                              io->generic.level, io,
 119                                              STR_UNICODE);
 120         NT_STATUS_NOT_OK_RETURN(status);
 121
 122         return NT_STATUS_OK;
 123 }
 124
 125 static NTSTATUS smb2srv_getinfo_fs(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
 126 {
 127         union smb_fsinfo *io;
 128
 129         io = talloc(op, union smb_fsinfo);
 130         NT_STATUS_HAVE_NO_MEMORY(io);
 131
 132         /* the rest directly maps to the passthru levels */
 133         io->generic.level       = smb2_level + 1000;
 134
 135         /* TODO: allow qfsinfo only the share root directory handle */
 136
 137         op->io_ptr      = io;
 138         op->send_fn     = smb2srv_getinfo_fs_send;
 139
 140         return ntvfs_fsinfo(op->req->ntvfs, io);
 141 }
 142
 143 static NTSTATUS smb2srv_getinfo_security_send(struct smb2srv_getinfo_op *op)
 144 {
 145         union smb_fileinfo *io = talloc_get_type(op->io_ptr, union smb_fileinfo);
 146         NTSTATUS status;
 147
 148         status = ndr_push_struct_blob(&op->info->out.blob, op->req,
 149                                       io->query_secdesc.out.sd,
 150                                       (ndr_push_flags_fn_t)ndr_push_security_descriptor);
 151         NT_STATUS_NOT_OK_RETURN(status);
 152
 153         return NT_STATUS_OK;
 154 }
 155
 156 static NTSTATUS smb2srv_getinfo_security(struct smb2srv_getinfo_op *op, uint8_t smb2_level)
 157 {
 158         union smb_fileinfo *io;
 159
 160         switch (smb2_level) {
 161         case 0x00:
 162                 io = talloc(op, union smb_fileinfo);
 163                 NT_STATUS_HAVE_NO_MEMORY(io);
 164
 165                 io->query_secdesc.level                 = RAW_FILEINFO_SEC_DESC;
 166                 io->query_secdesc.in.file.ntvfs         = op->info->in.file.ntvfs;
 167                 io->query_secdesc.in.secinfo_flags      = op->info->in.flags;
 168
 169                 op->io_ptr      = io;
 170                 op->send_fn     = smb2srv_getinfo_security_send;
 171
 172                 return ntvfs_qfileinfo(op->req->ntvfs, io);
 173         }
 174
 175         return NT_STATUS_INVALID_PARAMETER;
 176 }
 177
 178 static NTSTATUS smb2srv_getinfo_backend(struct smb2srv_getinfo_op *op)
 179 {
 180         uint8_t smb2_class;
 181         uint8_t smb2_level;
 182
 183         smb2_class = 0xFF & op->info->in.level;
 184         smb2_level = 0xFF & (op->info->in.level>>8);
 185
 186         switch (smb2_class) {
 187         case SMB2_GETINFO_FILE:
 188                 return smb2srv_getinfo_file(op, smb2_level);
 189
 190         case SMB2_GETINFO_FS:
 191                 return smb2srv_getinfo_fs(op, smb2_level);
 192
 193         case SMB2_GETINFO_SECURITY:
 194                 return smb2srv_getinfo_security(op, smb2_level);
 195
 196         case 0x04:
 197                 return NT_STATUS_NOT_SUPPORTED;
 198         }
 199
 200         return NT_STATUS_INVALID_PARAMETER;
 201 }
 202
 203 void smb2srv_getinfo_recv(struct smb2srv_request *req)
 204 {
 205         struct smb2_getinfo *info;
 206         struct smb2srv_getinfo_op *op;
 207
 208         SMB2SRV_CHECK_BODY_SIZE(req, 0x28, true);
 209         SMB2SRV_TALLOC_IO_PTR(info, struct smb2_getinfo);
 210         /* this overwrites req->io_ptr !*/
 211         SMB2SRV_TALLOC_IO_PTR(op, struct smb2srv_getinfo_op);
 212         op->req         = req;
 213         op->info        = info;
 214         op->io_ptr      = NULL;
 215         op->send_fn     = NULL;
 216         SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_getinfo_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
 217
 218         info->in.level                  = SVAL(req->in.body, 0x02);
 219         info->in.max_response_size      = IVAL(req->in.body, 0x04);
 220         info->in.unknown1               = IVAL(req->in.body, 0x08);
 221         info->in.unknown2               = IVAL(req->in.body, 0x0C);
 222         info->in.flags                  = IVAL(req->in.body, 0x10);
 223         info->in.flags2                 = IVAL(req->in.body, 0x14);
 224         info->in.file.ntvfs             = smb2srv_pull_handle(req, req->in.body, 0x18);
 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         status = smbsrv_pull_passthru_sfileinfo(io, io->generic.level, io,
 268                                                 &op->info->in.blob,
 269                                                 STR_UNICODE, NULL);
 270         NT_STATUS_NOT_OK_RETURN(status);
 271
 272         return ntvfs_setfileinfo(op->req->ntvfs, io);
 273 }
 274
 275 static NTSTATUS smb2srv_setinfo_fs(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 276 {
 277         switch (smb2_level) {
 278         case 0x02:
 279                 return NT_STATUS_NOT_IMPLEMENTED;
 280
 281         case 0x06:
 282                 return NT_STATUS_ACCESS_DENIED;
 283
 284         case 0x08:
 285                 return NT_STATUS_ACCESS_DENIED;
 286
 287         case 0x0A:
 288                 return NT_STATUS_ACCESS_DENIED;
 289         }
 290
 291         return NT_STATUS_INVALID_INFO_CLASS;
 292 }
 293
 294 static NTSTATUS smb2srv_setinfo_security(struct smb2srv_setinfo_op *op, uint8_t smb2_level)
 295 {
 296         union smb_setfileinfo *io;
 297         NTSTATUS status;
 298
 299         switch (smb2_level) {
 300         case 0x00:
 301                 io = talloc(op, union smb_setfileinfo);
 302                 NT_STATUS_HAVE_NO_MEMORY(io);
 303
 304                 io->set_secdesc.level            = RAW_SFILEINFO_SEC_DESC;
 305                 io->set_secdesc.in.file.ntvfs    = op->info->in.file.ntvfs;
 306                 io->set_secdesc.in.secinfo_flags = op->info->in.flags;
 307
 308                 io->set_secdesc.in.sd = talloc(io, struct security_descriptor);
 309                 NT_STATUS_HAVE_NO_MEMORY(io->set_secdesc.in.sd);
 310
 311                 status = ndr_pull_struct_blob(&op->info->in.blob, io,
 312                                               io->set_secdesc.in.sd,
 313                                               (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 314                 NT_STATUS_NOT_OK_RETURN(status);
 315
 316                 return ntvfs_setfileinfo(op->req->ntvfs, io);
 317         }
 318
 319         return NT_STATUS_INVALID_INFO_CLASS;
 320 }
 321
 322 static NTSTATUS smb2srv_setinfo_backend(struct smb2srv_setinfo_op *op)
 323 {
 324         uint8_t smb2_class;
 325         uint8_t smb2_level;
 326
 327         smb2_class = 0xFF & op->info->in.level;
 328         smb2_level = 0xFF & (op->info->in.level>>8);
 329
 330         switch (smb2_class) {
 331         case SMB2_GETINFO_FILE:
 332                 return smb2srv_setinfo_file(op, smb2_level);
 333
 334         case SMB2_GETINFO_FS:
 335                 return smb2srv_setinfo_fs(op, smb2_level);
 336
 337         case SMB2_GETINFO_SECURITY:
 338                 return smb2srv_setinfo_security(op, smb2_level);
 339
 340         case 0x04:
 341                 return NT_STATUS_NOT_SUPPORTED;
 342         }
 343
 344         return NT_STATUS_INVALID_PARAMETER;
 345 }
 346
 347 void smb2srv_setinfo_recv(struct smb2srv_request *req)
 348 {
 349         struct smb2_setinfo *info;
 350         struct smb2srv_setinfo_op *op;
 351
 352         SMB2SRV_CHECK_BODY_SIZE(req, 0x20, true);
 353         SMB2SRV_TALLOC_IO_PTR(info, struct smb2_setinfo);
 354         /* this overwrites req->io_ptr !*/
 355         SMB2SRV_TALLOC_IO_PTR(op, struct smb2srv_setinfo_op);
 356         op->req         = req;
 357         op->info        = info;
 358         SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_setinfo_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
 359
 360         info->in.level                  = SVAL(req->in.body, 0x02);
 361         SMB2SRV_CHECK(smb2_pull_s32o32_blob(&req->in, info, req->in.body+0x04, &info->in.blob));
 362         info->in.flags                  = IVAL(req->in.body, 0x0C);
 363         info->in.file.ntvfs             = smb2srv_pull_handle(req, req->in.body, 0x10);
 364
 365         SMB2SRV_CHECK_FILE_HANDLE(info->in.file.ntvfs);
 366         SMB2SRV_CALL_NTVFS_BACKEND(smb2srv_setinfo_backend(op));
 367 }