1 | /*
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2 | Unix SMB/CIFS implementation.
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3 | client security descriptor functions
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4 | Copyright (C) Andrew Tridgell 2000
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5 |
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6 | This program is free software; you can redistribute it and/or modify
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7 | it under the terms of the GNU General Public License as published by
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8 | the Free Software Foundation; either version 3 of the License, or
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9 | (at your option) any later version.
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10 |
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11 | This program is distributed in the hope that it will be useful,
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12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | GNU General Public License for more details.
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15 |
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16 | You should have received a copy of the GNU General Public License
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17 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 | */
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19 |
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20 | #include "includes.h"
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21 | #include "libsmb/libsmb.h"
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22 |
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23 | /****************************************************************************
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24 | query the security descriptor for a open file
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25 | ****************************************************************************/
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26 | struct security_descriptor *cli_query_secdesc(struct cli_state *cli, uint16_t fnum,
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27 | TALLOC_CTX *mem_ctx)
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28 | {
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29 | uint8_t param[8];
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30 | uint8_t *rdata=NULL;
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31 | uint32_t rdata_count=0;
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32 | struct security_descriptor *psd = NULL;
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33 | NTSTATUS status;
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34 |
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35 | SIVAL(param, 0, fnum);
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36 | SIVAL(param, 4, 0x7);
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37 |
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38 | status = cli_trans(talloc_tos(), cli, SMBnttrans,
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39 | NULL, -1, /* name, fid */
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40 | NT_TRANSACT_QUERY_SECURITY_DESC, 0, /* function, flags */
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41 | NULL, 0, 0, /* setup, length, max */
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42 | param, 8, 4, /* param, length, max */
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43 | NULL, 0, 0x10000, /* data, length, max */
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44 | NULL, /* recv_flags2 */
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45 | NULL, 0, NULL, /* rsetup, length */
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46 | NULL, 0, NULL,
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47 | &rdata, 0, &rdata_count);
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48 |
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49 | if (!NT_STATUS_IS_OK(status)) {
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50 | DEBUG(1, ("NT_TRANSACT_QUERY_SECURITY_DESC failed: %s\n",
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51 | nt_errstr(status)));
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52 | goto cleanup;
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53 | }
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54 |
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55 | status = unmarshall_sec_desc(mem_ctx, (uint8 *)rdata, rdata_count,
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56 | &psd);
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57 |
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58 | if (!NT_STATUS_IS_OK(status)) {
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59 | DEBUG(10, ("unmarshall_sec_desc failed: %s\n",
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60 | nt_errstr(status)));
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61 | goto cleanup;
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62 | }
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63 |
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64 | cleanup:
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65 |
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66 | TALLOC_FREE(rdata);
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67 |
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68 | return psd;
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69 | }
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70 |
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71 | /****************************************************************************
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72 | set the security descriptor for a open file
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73 | ****************************************************************************/
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74 | NTSTATUS cli_set_secdesc(struct cli_state *cli, uint16_t fnum,
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75 | struct security_descriptor *sd)
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76 | {
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77 | uint8_t param[8];
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78 | uint32 sec_info = 0;
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79 | uint8 *data;
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80 | size_t len;
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81 | NTSTATUS status;
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82 |
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83 | status = marshall_sec_desc(talloc_tos(), sd, &data, &len);
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84 | if (!NT_STATUS_IS_OK(status)) {
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85 | DEBUG(10, ("marshall_sec_desc failed: %s\n",
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86 | nt_errstr(status)));
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87 | return status;
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88 | }
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89 |
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90 | SIVAL(param, 0, fnum);
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91 |
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92 | if (sd->dacl)
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93 | sec_info |= SECINFO_DACL;
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94 | if (sd->owner_sid)
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95 | sec_info |= SECINFO_OWNER;
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96 | if (sd->group_sid)
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97 | sec_info |= SECINFO_GROUP;
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98 | SSVAL(param, 4, sec_info);
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99 |
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100 | status = cli_trans(talloc_tos(), cli, SMBnttrans,
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101 | NULL, -1, /* name, fid */
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102 | NT_TRANSACT_SET_SECURITY_DESC, 0,
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103 | NULL, 0, 0, /* setup */
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104 | param, 8, 0, /* param */
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105 | data, len, 0, /* data */
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106 | NULL, /* recv_flags2 */
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107 | NULL, 0, NULL, /* rsetup */
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108 | NULL, 0, NULL, /* rparam */
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109 | NULL, 0, NULL); /* rdata */
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110 | TALLOC_FREE(data);
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111 | if (!NT_STATUS_IS_OK(status)) {
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112 | DEBUG(1, ("Failed to send NT_TRANSACT_SET_SECURITY_DESC: %s\n",
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113 | nt_errstr(status)));
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114 | }
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115 | return status;
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116 | }
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