source3/libsmb/smb2cli_set_info.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    smb2 lib
   4    Copyright (C) Stefan Metzmacher 2012
   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 "client.h"
  22 #include "async_smb.h"
  23 #include "../libcli/smb/smbXcli_base.h"
  24 #include "smb2cli.h"
  25 #include "libsmb/proto.h"
  26 #include "lib/util/tevent_ntstatus.h"
  27 #include "../librpc/ndr/libndr.h"
  28
  29 struct smb2cli_set_info_state {
  30         uint8_t fixed[0x20];
  31         uint8_t dyn_pad[1];
  32 };
  33
  34 static void smb2cli_set_info_done(struct tevent_req *subreq);
  35
  36 struct tevent_req *smb2cli_set_info_send(TALLOC_CTX *mem_ctx,
  37                                          struct tevent_context *ev,
  38                                          struct smbXcli_conn *conn,
  39                                          uint32_t timeout_msec,
  40                                          struct smbXcli_session *session,
  41                                          uint32_t tcon_id,
  42                                          uint8_t in_info_type,
  43                                          uint8_t in_file_info_class,
  44                                          const DATA_BLOB *in_input_buffer,
  45                                          uint32_t in_additional_info,
  46                                          uint64_t in_fid_persistent,
  47                                          uint64_t in_fid_volatile)
  48 {
  49         struct tevent_req *req, *subreq;
  50         struct smb2cli_set_info_state *state;
  51         uint8_t *fixed;
  52         uint8_t *dyn;
  53         size_t dyn_len;
  54         uint16_t input_buffer_offset = 0;
  55         uint32_t input_buffer_length = 0;
  56
  57         req = tevent_req_create(mem_ctx, &state,
  58                                 struct smb2cli_set_info_state);
  59         if (req == NULL) {
  60                 return NULL;
  61         }
  62
  63         if (in_input_buffer) {
  64                 input_buffer_offset = SMB2_HDR_BODY+0x20;
  65                 input_buffer_length = in_input_buffer->length;
  66         }
  67
  68         fixed = state->fixed;
  69
  70         SSVAL(fixed, 0x00, 0x21);
  71         SCVAL(fixed, 0x02, in_info_type);
  72         SCVAL(fixed, 0x03, in_file_info_class);
  73         SIVAL(fixed, 0x04, input_buffer_length);
  74         SSVAL(fixed, 0x08, input_buffer_offset);
  75         SSVAL(fixed, 0x0A, 0); /* reserved */
  76         SIVAL(fixed, 0x0C, in_additional_info);
  77         SBVAL(fixed, 0x10, in_fid_persistent);
  78         SBVAL(fixed, 0x18, in_fid_volatile);
  79
  80         if (input_buffer_length > 0) {
  81                 dyn = in_input_buffer->data;
  82                 dyn_len = in_input_buffer->length;
  83         } else {
  84                 dyn = state->dyn_pad;
  85                 dyn_len = sizeof(state->dyn_pad);
  86         }
  87
  88         subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_SETINFO,
  89                                   0, 0, /* flags */
  90                                   timeout_msec,
  91                                   0xFEFF, /* pid */
  92                                   tcon_id,
  93                                   session,
  94                                   state->fixed, sizeof(state->fixed),
  95                                   dyn, dyn_len);
  96         if (tevent_req_nomem(subreq, req)) {
  97                 return tevent_req_post(req, ev);
  98         }
  99         tevent_req_set_callback(subreq, smb2cli_set_info_done, req);
 100         return req;
 101 }
 102
 103 static void smb2cli_set_info_done(struct tevent_req *subreq)
 104 {
 105         struct tevent_req *req =
 106                 tevent_req_callback_data(subreq,
 107                 struct tevent_req);
 108         NTSTATUS status;
 109         static const struct smb2cli_req_expected_response expected[] = {
 110         {
 111                 .status = NT_STATUS_OK,
 112                 .body_size = 0x02
 113         },
 114         };
 115
 116         status = smb2cli_req_recv(subreq, NULL, NULL,
 117                                   expected, ARRAY_SIZE(expected));
 118         if (tevent_req_nterror(req, status)) {
 119                 return;
 120         }
 121
 122         tevent_req_done(req);
 123 }
 124
 125 NTSTATUS smb2cli_set_info_recv(struct tevent_req *req)
 126 {
 127         NTSTATUS status;
 128
 129         if (tevent_req_is_nterror(req, &status)) {
 130                 tevent_req_received(req);
 131                 return status;
 132         }
 133
 134         tevent_req_received(req);
 135         return NT_STATUS_OK;
 136 }
 137
 138 NTSTATUS smb2cli_set_info(struct smbXcli_conn *conn,
 139                           uint32_t timeout_msec,
 140                           struct smbXcli_session *session,
 141                           uint32_t tcon_id,
 142                           uint8_t in_info_type,
 143                           uint8_t in_file_info_class,
 144                           const DATA_BLOB *in_input_buffer,
 145                           uint32_t in_additional_info,
 146                           uint64_t in_fid_persistent,
 147                           uint64_t in_fid_volatile)
 148 {
 149         TALLOC_CTX *frame = talloc_stackframe();
 150         struct tevent_context *ev;
 151         struct tevent_req *req;
 152         NTSTATUS status = NT_STATUS_NO_MEMORY;
 153
 154         if (smbXcli_conn_has_async_calls(conn)) {
 155                 /*
 156                  * Can't use sync call while an async call is in flight
 157                  */
 158                 status = NT_STATUS_INVALID_PARAMETER_MIX;
 159                 goto fail;
 160         }
 161         ev = tevent_context_init(frame);
 162         if (ev == NULL) {
 163                 goto fail;
 164         }
 165         req = smb2cli_set_info_send(frame, ev,
 166                                     conn, timeout_msec,
 167                                     session, tcon_id,
 168                                     in_info_type,
 169                                     in_file_info_class,
 170                                     in_input_buffer,
 171                                     in_additional_info,
 172                                     in_fid_persistent,
 173                                     in_fid_volatile);
 174         if (req == NULL) {
 175                 goto fail;
 176         }
 177         if (!tevent_req_poll_ntstatus(req, ev, &status)) {
 178                 goto fail;
 179         }
 180         status = smb2cli_set_info_recv(req);
 181
 182  fail:
 183         TALLOC_FREE(frame);
 184         return status;
 185 }