| 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 2 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, write to the Free Software
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| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 19 | */
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| 20 |
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| 21 | #include "includes.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 | SEC_DESC *cli_query_secdesc(struct cli_state *cli, int fnum,
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| 27 | TALLOC_CTX *mem_ctx)
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| 28 | {
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| 29 | char param[8];
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| 30 | char *rparam=NULL, *rdata=NULL;
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| 31 | unsigned int rparam_count=0, rdata_count=0;
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| 32 | prs_struct pd;
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| 33 | BOOL pd_initialized = False;
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| 34 | SEC_DESC *psd = NULL;
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| 35 |
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| 36 | SIVAL(param, 0, fnum);
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| 37 | SIVAL(param, 4, 0x7);
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| 38 |
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| 39 | if (!cli_send_nt_trans(cli,
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| 40 | NT_TRANSACT_QUERY_SECURITY_DESC,
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| 41 | 0,
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| 42 | NULL, 0, 0,
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| 43 | param, 8, 4,
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| 44 | NULL, 0, 0x10000)) {
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| 45 | DEBUG(1,("Failed to send NT_TRANSACT_QUERY_SECURITY_DESC\n"));
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| 46 | goto cleanup;
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| 47 | }
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| 48 |
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| 49 |
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| 50 | if (!cli_receive_nt_trans(cli,
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| 51 | &rparam, &rparam_count,
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| 52 | &rdata, &rdata_count)) {
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| 53 | DEBUG(1,("Failed to recv NT_TRANSACT_QUERY_SECURITY_DESC\n"));
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| 54 | goto cleanup;
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| 55 | }
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| 56 |
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| 57 | if (cli_is_error(cli))
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| 58 | goto cleanup;
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| 59 |
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| 60 | if (!prs_init(&pd, rdata_count, mem_ctx, UNMARSHALL)) {
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| 61 | goto cleanup;
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| 62 | }
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| 63 | pd_initialized = True;
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| 64 | prs_copy_data_in(&pd, rdata, rdata_count);
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| 65 | prs_set_offset(&pd,0);
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| 66 |
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| 67 | if (!sec_io_desc("sd data", &psd, &pd, 1)) {
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| 68 | DEBUG(1,("Failed to parse secdesc\n"));
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| 69 | goto cleanup;
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| 70 | }
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| 71 |
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| 72 | cleanup:
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| 73 |
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| 74 | SAFE_FREE(rparam);
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| 75 | SAFE_FREE(rdata);
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| 76 |
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| 77 | if (pd_initialized)
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| 78 | prs_mem_free(&pd);
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| 79 | return psd;
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| 80 | }
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| 81 |
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| 82 | /****************************************************************************
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| 83 | set the security descriptor for a open file
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| 84 | ****************************************************************************/
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| 85 | BOOL cli_set_secdesc(struct cli_state *cli, int fnum, SEC_DESC *sd)
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| 86 | {
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| 87 | char param[8];
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| 88 | char *rparam=NULL, *rdata=NULL;
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| 89 | unsigned int rparam_count=0, rdata_count=0;
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| 90 | uint32 sec_info = 0;
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| 91 | TALLOC_CTX *mem_ctx;
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| 92 | prs_struct pd;
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| 93 | BOOL ret = False;
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| 94 |
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| 95 | if ((mem_ctx = talloc_init("cli_set_secdesc")) == NULL) {
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| 96 | DEBUG(0,("talloc_init failed.\n"));
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| 97 | goto cleanup;
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| 98 | }
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| 99 |
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| 100 | prs_init(&pd, 0, mem_ctx, MARSHALL);
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| 101 | prs_give_memory(&pd, NULL, 0, True);
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| 102 |
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| 103 | if (!sec_io_desc("sd data", &sd, &pd, 1)) {
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| 104 | DEBUG(1,("Failed to marshall secdesc\n"));
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| 105 | goto cleanup;
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| 106 | }
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| 107 |
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| 108 | SIVAL(param, 0, fnum);
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| 109 |
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| 110 | if (sd->off_dacl)
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| 111 | sec_info |= DACL_SECURITY_INFORMATION;
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| 112 | if (sd->off_owner_sid)
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| 113 | sec_info |= OWNER_SECURITY_INFORMATION;
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| 114 | if (sd->off_grp_sid)
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| 115 | sec_info |= GROUP_SECURITY_INFORMATION;
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| 116 | SSVAL(param, 4, sec_info);
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| 117 |
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| 118 | if (!cli_send_nt_trans(cli,
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| 119 | NT_TRANSACT_SET_SECURITY_DESC,
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| 120 | 0,
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| 121 | NULL, 0, 0,
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| 122 | param, 8, 0,
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| 123 | prs_data_p(&pd), prs_offset(&pd), 0)) {
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| 124 | DEBUG(1,("Failed to send NT_TRANSACT_SET_SECURITY_DESC\n"));
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| 125 | goto cleanup;
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| 126 | }
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| 127 |
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| 128 |
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| 129 | if (!cli_receive_nt_trans(cli,
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| 130 | &rparam, &rparam_count,
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| 131 | &rdata, &rdata_count)) {
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| 132 | DEBUG(1,("NT_TRANSACT_SET_SECURITY_DESC failed\n"));
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| 133 | goto cleanup;
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| 134 | }
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| 135 |
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| 136 | ret = True;
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| 137 |
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| 138 | cleanup:
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| 139 |
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| 140 | SAFE_FREE(rparam);
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| 141 | SAFE_FREE(rdata);
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| 142 |
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| 143 | talloc_destroy(mem_ctx);
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| 144 |
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| 145 | prs_mem_free(&pd);
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| 146 | return ret;
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| 147 | }
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