2 Unix SMB/Netbios implementation.
5 Printer security permission manipulation.
7 Copyright (C) Tim Potter 2000
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 /* This program can get or set NT printer security permissions from the
25 command line. Usage: psec getsec|setsec printername. You must have
26 write access to the ntdrivers.tdb file to set permissions and read
27 access to get permissions.
29 For this program to compile using the supplied Makefile.psec, Samba
30 must be configured with the --srcdir option
32 For getsec, output like the following is sent to standard output:
34 S-1-5-21-1067277791-1719175008-3000797951-500
36 1 9 0x10000000 S-1-5-21-1067277791-1719175008-3000797951-501
37 1 2 0x10000000 S-1-5-21-1067277791-1719175008-3000797951-501
38 0 9 0x10000000 S-1-5-21-1067277791-1719175008-3000797951-500
39 0 2 0x10000000 S-1-5-21-1067277791-1719175008-3000797951-500
40 0 9 0x10000000 S-1-5-21-1067277791-1719175008-3000797951-513
41 0 2 0x00020000 S-1-5-21-1067277791-1719175008-3000797951-513
42 0 2 0xe0000000 S-1-1-0
44 The first two lines describe the owner user and owner group of the printer.
45 If either of these lines are blank then the respective owner property is
46 not set. The remaining lines list the printer permissions or ACE entries,
47 one per line. Each column describes a different property of the ACE:
50 -------------------------------------------------------------------
51 1 ACE type (allow/deny etc) defined in rpc_secdes.h
52 2 ACE flags defined in rpc_secdes.h
53 3 ACE mask - printer ACE masks are defined in rpc_spoolss.h
54 4 SID the ACE applies to
56 The above example describes the following permissions in order:
58 - The guest user has No Access to the printer
59 - The domain administrator has Full Access
60 - Domain Users can Manage Documents
61 - Everyone has Print access
63 The setsec command takes the output format but sets the security descriptor
70 /* ACE type conversions */
72 char *ace_type_to_str(uint ace_type)
77 case SEC_ACE_TYPE_ACCESS_DENIED:
79 case SEC_ACE_TYPE_ACCESS_ALLOWED:
83 slprintf(temp, sizeof(temp) - 1, "0x%02x", ace_type);
87 uint str_to_ace_type(char *ace_type)
89 if (strcmp(ace_type, "ALLOWED") == 0)
90 return SEC_ACE_TYPE_ACCESS_ALLOWED;
92 if (strcmp(ace_type, "DENIED") == 0)
93 return SEC_ACE_TYPE_ACCESS_DENIED;
98 /* ACE mask (permission) conversions */
100 char *ace_mask_to_str(uint32 ace_mask)
105 case PRINTER_ACE_FULL_CONTROL:
106 return "Full Control";
107 case PRINTER_ACE_MANAGE_DOCUMENTS:
108 return "Manage Documents";
109 case PRINTER_ACE_PRINT:
113 slprintf(temp, sizeof(temp) - 1, "0x%08x", ace_mask);
117 uint32 str_to_ace_mask(char *ace_mask)
119 if (strcmp(ace_mask, "Full Control") == 0)
120 return PRINTER_ACE_FULL_CONTROL;
122 if (strcmp(ace_mask, "Manage Documents") == 0)
123 return PRINTER_ACE_MANAGE_DOCUMENTS;
125 if (strcmp(ace_mask, "Print") == 0)
126 return PRINTER_ACE_PRINT;
131 /* ACE conversions */
133 char *ace_to_str(SEC_ACE *ace)
138 sid_to_string(sidstr, &ace->sid);
140 slprintf(temp, sizeof(temp) - 1, "%s %d %s %s",
141 ace_type_to_str(ace->type), ace->flags,
142 ace_mask_to_str(ace->info.mask), sidstr);
147 void str_to_ace(SEC_ACE *ace, char *ace_str)
154 init_sec_access(&sa, mask);
155 init_sec_ace(ace, &sid, type, sa, flags);
158 /* Get a printer security descriptor */
160 int psec_getsec(char *printer)
162 SEC_DESC_BUF *secdesc_ctr = NULL;
163 TALLOC_CTX *mem_ctx = NULL;
164 fstring keystr, sidstr, tdb_path;
170 /* Open tdb for reading */
172 slprintf(tdb_path, sizeof(tdb_path) - 1, "%s/ntdrivers.tdb", LOCKDIR);
173 tdb = tdb_open(tdb_path, 0, 0, O_RDONLY, 0600);
176 printf("psec: failed to open nt drivers database: %s\n",
181 /* Get security blob from tdb */
183 slprintf(keystr, sizeof(keystr) - 1, "SECDESC/%s", printer);
185 mem_ctx = talloc_init();
188 printf("memory allocation error\n");
193 if (tdb_prs_fetch(tdb, keystr, &ps, mem_ctx) != 0) {
194 printf("error fetching descriptor for printer %s\n",
200 /* Unpack into security descriptor buffer */
202 if (!sec_io_desc_buf("nt_printing_getsec", &secdesc_ctr, &ps, 1)) {
203 printf("error unpacking sec_desc_buf\n");
208 /* Print owner and group sid */
210 if (secdesc_ctr->sec->owner_sid) {
211 sid_to_string(sidstr, secdesc_ctr->sec->owner_sid);
216 printf("%s\n", sidstr);
218 if (secdesc_ctr->sec->grp_sid) {
219 sid_to_string(sidstr, secdesc_ctr->sec->grp_sid);
224 printf("%s\n", sidstr);
228 if (!secdesc_ctr->sec->dacl) {
233 for (i = 0; i < secdesc_ctr->sec->dacl->num_aces; i++) {
234 SEC_ACE *ace = &secdesc_ctr->sec->dacl->ace[i];
236 sid_to_string(sidstr, &ace->sid);
238 printf("%d %d 0x%08x %s\n", ace->type, ace->flags,
239 ace->info.mask, sidstr);
243 if (tdb) tdb_close(tdb);
244 if (mem_ctx) talloc_destroy(mem_ctx);
245 if (secdesc_ctr) free_sec_desc_buf(&secdesc_ctr);
251 /* Set a printer security descriptor */
253 int psec_setsec(char *printer)
255 DOM_SID user_sid, group_sid;
256 SEC_ACE *ace_list = NULL;
257 SEC_ACL *dacl = NULL;
259 SEC_DESC_BUF *sdb = NULL;
260 int result = 0, num_aces = 0;
261 fstring line, keystr, tdb_path;
264 TALLOC_CTX *mem_ctx = NULL;
265 BOOL has_user_sid = False, has_group_sid = False;
269 /* Open tdb for reading */
271 slprintf(tdb_path, sizeof(tdb_path) - 1, "%s/ntdrivers.tdb", LOCKDIR);
272 tdb = tdb_open(tdb_path, 0, 0, O_RDWR, 0600);
275 printf("psec: failed to open nt drivers database: %s\n",
281 /* Read owner and group sid */
283 fgets(line, sizeof(fstring), stdin);
284 if (line[0] != '\n') {
285 string_to_sid(&user_sid, line);
289 fgets(line, sizeof(fstring), stdin);
290 if (line[0] != '\n') {
291 string_to_sid(&group_sid, line);
292 has_group_sid = True;
295 /* Read ACEs from standard input for discretionary ACL */
297 while(fgets(line, sizeof(fstring), stdin)) {
298 int ace_type, ace_flags;
304 if (sscanf(line, "%d %d 0x%x %s", &ace_type, &ace_flags,
305 &ace_mask, sidstr) != 4) {
309 string_to_sid(&sid, sidstr);
311 ace_list = Realloc(ace_list, sizeof(SEC_ACE) *
314 init_sec_access(&sa, ace_mask);
315 init_sec_ace(&ace_list[num_aces], &sid, ace_type, sa,
321 dacl = make_sec_acl(ACL_REVISION, num_aces, ace_list);
324 /* Create security descriptor */
326 sd = make_sec_desc(SEC_DESC_REVISION,
327 has_user_sid ? &user_sid : NULL,
328 has_group_sid ? &group_sid : NULL,
329 NULL, /* System ACL */
330 dacl, /* Discretionary ACL */
335 sdb = make_sec_desc_buf(size, sd);
339 /* Write security descriptor to tdb */
341 mem_ctx = talloc_init();
344 printf("memory allocation error\n");
349 prs_init(&ps, (uint32)sec_desc_size(sdb->sec) +
350 sizeof(SEC_DESC_BUF), 4, mem_ctx, MARSHALL);
352 if (!sec_io_desc_buf("nt_printing_setsec", &sdb, &ps, 1)) {
353 printf("sec_io_desc_buf failed\n");
357 slprintf(keystr, sizeof(keystr) - 1, "SECDESC/%s", printer);
359 if (!tdb_prs_store(tdb, keystr, &ps)==0) {
360 printf("Failed to store secdesc for %s\n", printer);
365 if (tdb) tdb_close(tdb);
366 if (sdb) free_sec_desc_buf(&sdb);
367 if (mem_ctx) talloc_destroy(mem_ctx);
377 printf("Usage: psec getsec|setsec printername\n");
382 int main(int argc, char **argv)
393 if (strcmp(argv[1], "setsec") == 0) {
400 return psec_setsec(argv[2]);
403 if (strcmp(argv[1], "getsec") == 0) {
410 return psec_getsec(argv[2]);
413 /* An unknown command */
415 printf("psec: unknown command %s\n", argv[1]);