source3/libsmb/clisecdesc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    client security descriptor functions
   4    Copyright (C) Andrew Tridgell 2000
   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 "../libcli/security/secdesc.h"
  23
  24 NTSTATUS cli_query_security_descriptor(struct cli_state *cli,
  25                                        uint16_t fnum,
  26                                        uint32_t sec_info,
  27                                        TALLOC_CTX *mem_ctx,
  28                                        struct security_descriptor **sd)
  29 {
  30         uint8_t param[8];
  31         uint8_t *rdata=NULL;
  32         uint32_t rdata_count=0;
  33         NTSTATUS status;
  34         struct security_descriptor *lsd;
  35
  36         SIVAL(param, 0, fnum);
  37         SIVAL(param, 4, sec_info);
  38
  39         status = cli_trans(talloc_tos(), cli, SMBnttrans,
  40                            NULL, -1, /* name, fid */
  41                            NT_TRANSACT_QUERY_SECURITY_DESC, 0, /* function, flags */
  42                            NULL, 0, 0, /* setup, length, max */
  43                            param, 8, 4, /* param, length, max */
  44                            NULL, 0, 0x10000, /* data, length, max */
  45                            NULL,             /* recv_flags2 */
  46                            NULL, 0, NULL, /* rsetup, length */
  47                            NULL, 0, NULL,
  48                            &rdata, 0, &rdata_count);
  49
  50         if (!NT_STATUS_IS_OK(status)) {
  51                 DEBUG(1, ("NT_TRANSACT_QUERY_SECURITY_DESC failed: %s\n",
  52                           nt_errstr(status)));
  53                 goto cleanup;
  54         }
  55
  56         status = unmarshall_sec_desc(mem_ctx, (uint8 *)rdata, rdata_count,
  57                                      &lsd);
  58         if (!NT_STATUS_IS_OK(status)) {
  59                 DEBUG(10, ("unmarshall_sec_desc failed: %s\n",
  60                            nt_errstr(status)));
  61                 goto cleanup;
  62         }
  63
  64         if (sd != NULL) {
  65                 *sd = lsd;
  66         } else {
  67                 TALLOC_FREE(lsd);
  68         }
  69
  70  cleanup:
  71
  72         TALLOC_FREE(rdata);
  73
  74         return status;
  75 }
  76
  77 NTSTATUS cli_query_secdesc(struct cli_state *cli, uint16_t fnum,
  78                            TALLOC_CTX *mem_ctx, struct security_descriptor **sd)
  79 {
  80         uint32_t sec_info = SECINFO_OWNER | SECINFO_GROUP | SECINFO_DACL;
  81
  82         return cli_query_security_descriptor(cli, fnum, sec_info, mem_ctx, sd);
  83 }
  84
  85 /****************************************************************************
  86   set the security descriptor for a open file
  87  ****************************************************************************/
  88 NTSTATUS cli_set_security_descriptor(struct cli_state *cli,
  89                                      uint16_t fnum,
  90                                      uint32_t sec_info,
  91                                      const struct security_descriptor *sd)
  92 {
  93         uint8_t param[8];
  94         uint8 *data;
  95         size_t len;
  96         NTSTATUS status;
  97
  98         status = marshall_sec_desc(talloc_tos(), sd, &data, &len);
  99         if (!NT_STATUS_IS_OK(status)) {
 100                 DEBUG(10, ("marshall_sec_desc failed: %s\n",
 101                            nt_errstr(status)));
 102                 return status;
 103         }
 104
 105         SIVAL(param, 0, fnum);
 106         SIVAL(param, 4, sec_info);
 107
 108         status = cli_trans(talloc_tos(), cli, SMBnttrans,
 109                            NULL, -1, /* name, fid */
 110                            NT_TRANSACT_SET_SECURITY_DESC, 0,
 111                            NULL, 0, 0, /* setup */
 112                            param, 8, 0, /* param */
 113                            data, len, 0, /* data */
 114                            NULL,         /* recv_flags2 */
 115                            NULL, 0, NULL, /* rsetup */
 116                            NULL, 0, NULL, /* rparam */
 117                            NULL, 0, NULL); /* rdata */
 118         TALLOC_FREE(data);
 119         if (!NT_STATUS_IS_OK(status)) {
 120                 DEBUG(1, ("Failed to send NT_TRANSACT_SET_SECURITY_DESC: %s\n",
 121                           nt_errstr(status)));
 122         }
 123         return status;
 124 }
 125
 126 NTSTATUS cli_set_secdesc(struct cli_state *cli, uint16_t fnum,
 127                          const struct security_descriptor *sd)
 128 {
 129         uint32_t sec_info = 0;
 130
 131         if (sd->dacl || (sd->type & SEC_DESC_DACL_PRESENT)) {
 132                 sec_info |= SECINFO_DACL;
 133         }
 134         if (sd->sacl || (sd->type & SEC_DESC_SACL_PRESENT)) {
 135                 sec_info |= SECINFO_SACL;
 136         }
 137         if (sd->owner_sid) {
 138                 sec_info |= SECINFO_OWNER;
 139         }
 140         if (sd->group_sid) {
 141                 sec_info |= SECINFO_GROUP;
 142         }
 143
 144         return cli_set_security_descriptor(cli, fnum, sec_info, sd);
 145 }