source3/libsmb/clitrans.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    client transaction calls
   4    Copyright (C) Andrew Tridgell 1994-1998
   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 "libsmb/libsmb.h"
  22 #include "../lib/util/tevent_ntstatus.h"
  23 #include "async_smb.h"
  24 #include "../libcli/smb/smbXcli_base.h"
  25
  26 struct cli_trans_state {
  27         struct cli_state *cli;
  28         struct tevent_req *req;
  29         struct cli_trans_state **ptr;
  30 };
  31
  32 static int cli_trans_state_destructor(struct cli_trans_state *state)
  33 {
  34         talloc_set_destructor(state->ptr, NULL);
  35         talloc_free(state->ptr);
  36         return 0;
  37 }
  38
  39 static int cli_trans_state_ptr_destructor(struct cli_trans_state **ptr)
  40 {
  41         struct cli_trans_state *state = *ptr;
  42         void *parent = talloc_parent(state);
  43
  44         talloc_set_destructor(state, NULL);
  45
  46         talloc_reparent(state, parent, state->req);
  47         talloc_free(state);
  48         return 0;
  49 }
  50
  51 struct tevent_req *cli_trans_send(
  52         TALLOC_CTX *mem_ctx, struct tevent_context *ev,
  53         struct cli_state *cli, uint8_t cmd,
  54         const char *pipe_name, uint16_t fid, uint16_t function, int flags,
  55         uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
  56         uint8_t *param, uint32_t num_param, uint32_t max_param,
  57         uint8_t *data, uint32_t num_data, uint32_t max_data)
  58 {
  59         struct cli_trans_state *state;
  60         uint8_t additional_flags = 0;
  61         uint8_t clear_flags = 0;
  62         uint16_t additional_flags2 = 0;
  63         uint16_t clear_flags2 = 0;
  64
  65         state = talloc_zero(mem_ctx, struct cli_trans_state);
  66         if (state == NULL) {
  67                 return NULL;
  68         }
  69         state->cli = cli;
  70         state->ptr = talloc(state, struct cli_trans_state *);
  71         if (state->ptr == NULL) {
  72                 talloc_free(state);
  73                 return NULL;
  74         }
  75         *state->ptr = state;
  76         if (cli->case_sensitive) {
  77                 clear_flags |= FLAG_CASELESS_PATHNAMES;
  78         } else {
  79                 /* Default setting, case insensitive. */
  80                 additional_flags |= FLAG_CASELESS_PATHNAMES;
  81         }
  82
  83         if ((smb1cli_conn_capabilities(cli->conn) & CAP_DFS) && cli->dfsroot) {
  84                 additional_flags2 |= FLAGS2_DFS_PATHNAMES;
  85         }
  86
  87         state->req = smb1cli_trans_send(state, ev,
  88                                         cli->conn, cmd,
  89                                         additional_flags, clear_flags,
  90                                         additional_flags2, clear_flags2,
  91                                         cli->timeout,
  92                                         cli->smb1.pid, cli->smb1.tid,
  93                                         cli->smb1.session,
  94                                         pipe_name, fid, function, flags,
  95                                         setup, num_setup, max_setup,
  96                                         param, num_param, max_param,
  97                                         data, num_data, max_data);
  98         if (state->req == NULL) {
  99                 talloc_free(state);
 100                 return NULL;
 101         }
 102
 103         talloc_reparent(state, state->req, state->ptr);
 104         talloc_set_destructor(state, cli_trans_state_destructor);
 105         talloc_set_destructor(state->ptr, cli_trans_state_ptr_destructor);
 106
 107         return state->req;
 108 }
 109
 110 NTSTATUS cli_trans_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 111                         uint16_t *recv_flags2,
 112                         uint16_t **setup, uint8_t min_setup,
 113                         uint8_t *num_setup,
 114                         uint8_t **param, uint32_t min_param,
 115                         uint32_t *num_param,
 116                         uint8_t **data, uint32_t min_data,
 117                         uint32_t *num_data)
 118 {
 119         NTSTATUS status;
 120         void *parent = talloc_parent(req);
 121         struct cli_trans_state *state =
 122                 talloc_get_type(parent,
 123                 struct cli_trans_state);
 124         bool map_dos_errors = true;
 125
 126         status = smb1cli_trans_recv(req, mem_ctx, recv_flags2,
 127                                     setup, min_setup, num_setup,
 128                                     param, min_param, num_param,
 129                                     data, min_data, num_data);
 130
 131         if (state) {
 132                 map_dos_errors = state->cli->map_dos_errors;
 133                 state->cli->raw_status = status;
 134                 talloc_free(state->ptr);
 135                 state = NULL;
 136         }
 137
 138         if (NT_STATUS_IS_DOS(status) && map_dos_errors) {
 139                 uint8_t eclass = NT_STATUS_DOS_CLASS(status);
 140                 uint16_t ecode = NT_STATUS_DOS_CODE(status);
 141                 /*
 142                  * TODO: is it really a good idea to do a mapping here?
 143                  *
 144                  * The old cli_pull_error() also does it, so I do not change
 145                  * the behavior yet.
 146                  */
 147                 status = dos_to_ntstatus(eclass, ecode);
 148         }
 149
 150         return status;
 151 }
 152
 153 NTSTATUS cli_trans(TALLOC_CTX *mem_ctx, struct cli_state *cli,
 154                    uint8_t trans_cmd,
 155                    const char *pipe_name, uint16_t fid, uint16_t function,
 156                    int flags,
 157                    uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
 158                    uint8_t *param, uint32_t num_param, uint32_t max_param,
 159                    uint8_t *data, uint32_t num_data, uint32_t max_data,
 160                    uint16_t *recv_flags2,
 161                    uint16_t **rsetup, uint8_t min_rsetup, uint8_t *num_rsetup,
 162                    uint8_t **rparam, uint32_t min_rparam, uint32_t *num_rparam,
 163                    uint8_t **rdata, uint32_t min_rdata, uint32_t *num_rdata)
 164 {
 165         NTSTATUS status;
 166         uint8_t additional_flags = 0;
 167         uint8_t clear_flags = 0;
 168         uint16_t additional_flags2 = 0;
 169         uint16_t clear_flags2 = 0;
 170
 171         if (cli->case_sensitive) {
 172                 clear_flags |= FLAG_CASELESS_PATHNAMES;
 173         } else {
 174                 /* Default setting, case insensitive. */
 175                 additional_flags |= FLAG_CASELESS_PATHNAMES;
 176         }
 177
 178         if ((smb1cli_conn_capabilities(cli->conn) & CAP_DFS) && cli->dfsroot) {
 179                 additional_flags2 |= FLAGS2_DFS_PATHNAMES;
 180         }
 181
 182         status = smb1cli_trans(mem_ctx,
 183                                cli->conn, trans_cmd,
 184                                additional_flags, clear_flags,
 185                                additional_flags2, clear_flags2,
 186                                cli->timeout,
 187                                cli->smb1.pid, cli->smb1.tid,
 188                                cli->smb1.session,
 189                                pipe_name, fid, function, flags,
 190                                setup, num_setup, max_setup,
 191                                param, num_param, max_param,
 192                                data, num_data, max_data,
 193                                recv_flags2,
 194                                rsetup, min_rsetup, num_rsetup,
 195                                rparam, min_rparam, num_rparam,
 196                                rdata, min_rdata, num_rdata);
 197
 198         cli->raw_status = status;
 199
 200         if (NT_STATUS_IS_DOS(status) && cli->map_dos_errors) {
 201                 uint8_t eclass = NT_STATUS_DOS_CLASS(status);
 202                 uint16_t ecode = NT_STATUS_DOS_CODE(status);
 203                 /*
 204                  * TODO: is it really a good idea to do a mapping here?
 205                  *
 206                  * The old cli_pull_error() also does it, so I do not change
 207                  * the behavior yet.
 208                  */
 209                 status = dos_to_ntstatus(eclass, ecode);
 210         }
 211
 212         return status;
 213 }