2 * Unix SMB/Netbios implementation.
4 * RPC Pipe client / server routines
5 * Copyright (C) Andrew Tridgell 1992-1998,
6 * Copyright (C) Jeremy R. Allison 1995-2005.
7 * Copyright (C) Luke Kenneth Casson Leighton 1996-1998,
8 * Copyright (C) Paul Ashton 1997-1998.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, see <http://www.gnu.org/licenses/>.
27 #define DBGC_CLASS DBGC_RPC_PARSE
29 /*******************************************************************
30 Reads or writes a SEC_ACCESS structure.
31 ********************************************************************/
33 bool sec_io_access(const char *desc, SEC_ACCESS *t, prs_struct *ps, int depth)
38 prs_debug(ps, depth, desc, "sec_io_access");
41 if(!prs_uint32("mask", ps, depth, t))
47 /*******************************************************************
48 Reads or writes a SEC_ACE structure.
49 ********************************************************************/
51 bool sec_io_ace(const char *desc, SEC_ACE *psa, prs_struct *ps, int depth)
54 uint32 offset_ace_size;
60 prs_debug(ps, depth, desc, "sec_io_ace");
63 old_offset = prs_offset(ps);
65 if (MARSHALLING(ps)) {
66 type = (uint8)psa->type;
69 if(!prs_uint8("type ", ps, depth, &type))
72 if (UNMARSHALLING(ps)) {
73 psa->type = (enum security_ace_type)type;
76 if(!prs_uint8("flags", ps, depth, &psa->flags))
79 if(!prs_uint16_pre("size ", ps, depth, &psa->size, &offset_ace_size))
82 if(!prs_uint32("access_mask", ps, depth, &psa->access_mask))
85 /* check whether object access is present */
86 if (!sec_ace_object(psa->type)) {
87 if (!smb_io_dom_sid("trustee ", &psa->trustee , ps, depth))
90 if (!prs_uint32("obj_flags", ps, depth, &psa->object.object.flags))
93 if (psa->object.object.flags & SEC_ACE_OBJECT_PRESENT)
94 if (!smb_io_uuid("obj_guid", &psa->object.object.type.type, ps,depth))
97 if (psa->object.object.flags & SEC_ACE_OBJECT_INHERITED_PRESENT)
98 if (!smb_io_uuid("inh_guid", &psa->object.object.inherited_type.inherited_type, ps,depth))
101 if(!smb_io_dom_sid("trustee ", &psa->trustee , ps, depth))
105 /* Theorectically an ACE can have a size greater than the
106 sum of its components. When marshalling, pad with extra null bytes up to the
109 if (MARSHALLING(ps) && (psa->size > prs_offset(ps) - old_offset)) {
110 uint32 extra_len = psa->size - (prs_offset(ps) - old_offset);
114 for (i = 0; i < extra_len; i++) {
115 if (!prs_uint8("ace extra space", ps, depth, &c))
120 if(!prs_uint16_post("size ", ps, depth, &psa->size, offset_ace_size, old_offset))
126 /*******************************************************************
127 Reads or writes a SEC_ACL structure.
129 First of the xx_io_xx functions that allocates its data structures
130 for you as it reads them.
131 ********************************************************************/
133 bool sec_io_acl(const char *desc, SEC_ACL **ppsa, prs_struct *ps, int depth)
137 uint32 offset_acl_size;
142 * Note that the size is always a multiple of 4 bytes due to the
143 * nature of the data structure. Therefore the prs_align() calls
144 * have been removed as they through us off when doing two-layer
145 * marshalling such as in the printing code (RPC_BUFFER). --jerry
153 if(UNMARSHALLING(ps) && psa == NULL) {
155 * This is a read and we must allocate the stuct to read into.
157 if((psa = PRS_ALLOC_MEM(ps, SEC_ACL, 1)) == NULL)
162 prs_debug(ps, depth, desc, "sec_io_acl");
165 old_offset = prs_offset(ps);
167 if (MARSHALLING(ps)) {
168 revision = (uint16)psa->revision;
171 if(!prs_uint16("revision", ps, depth, &revision))
174 if (UNMARSHALLING(ps)) {
175 psa->revision = (enum security_acl_revision)revision;
178 if(!prs_uint16_pre("size ", ps, depth, &psa->size, &offset_acl_size))
181 if(!prs_uint32("num_aces ", ps, depth, &psa->num_aces))
184 if (UNMARSHALLING(ps)) {
186 if((psa->aces = PRS_ALLOC_MEM(ps, SEC_ACE, psa->num_aces)) == NULL)
193 for (i = 0; i < psa->num_aces; i++) {
195 slprintf(tmp, sizeof(tmp)-1, "ace_list[%02d]: ", i);
196 if(!sec_io_ace(tmp, &psa->aces[i], ps, depth))
200 /* Theorectically an ACL can have a size greater than the
201 sum of its components. When marshalling, pad with extra null bytes up to the
204 if (MARSHALLING(ps) && (psa->size > prs_offset(ps) - old_offset)) {
205 uint32 extra_len = psa->size - (prs_offset(ps) - old_offset);
208 for (i = 0; i < extra_len; i++) {
209 if (!prs_uint8("acl extra space", ps, depth, &c))
214 if(!prs_uint16_post("size ", ps, depth, &psa->size, offset_acl_size, old_offset))
220 /*******************************************************************
221 Reads or writes a SEC_DESC structure.
222 If reading and the *ppsd = NULL, allocates the structure.
223 ********************************************************************/
225 bool sec_io_desc(const char *desc, SEC_DESC **ppsd, prs_struct *ps, int depth)
228 uint32 max_offset = 0; /* after we're done, move offset to end */
229 uint32 tmp_offset = 0;
230 uint32 off_sacl, off_dacl, off_owner_sid, off_grp_sid;
241 if(UNMARSHALLING(ps)) {
242 if((psd = PRS_ALLOC_MEM(ps,SEC_DESC,1)) == NULL)
246 /* Marshalling - just ignore. */
251 prs_debug(ps, depth, desc, "sec_io_desc");
254 /* start of security descriptor stored for back-calc offset purposes */
255 old_offset = prs_offset(ps);
257 if (MARSHALLING(ps)) {
258 revision = (uint16)psd->revision;
261 if(!prs_uint16("revision", ps, depth, &revision))
264 if (UNMARSHALLING(ps)) {
265 psd->revision = (enum security_descriptor_revision)revision;
268 if(!prs_uint16("type ", ps, depth, &psd->type))
271 if (MARSHALLING(ps)) {
272 uint32 offset = SEC_DESC_HEADER_SIZE;
275 * Work out the offsets here, as we write it out.
278 if (psd->sacl != NULL) {
280 offset += psd->sacl->size;
285 if (psd->dacl != NULL) {
287 offset += psd->dacl->size;
292 if (psd->owner_sid != NULL) {
293 off_owner_sid = offset;
294 offset += sid_size(psd->owner_sid);
299 if (psd->group_sid != NULL) {
300 off_grp_sid = offset;
301 offset += sid_size(psd->group_sid);
307 if(!prs_uint32("off_owner_sid", ps, depth, &off_owner_sid))
310 if(!prs_uint32("off_grp_sid ", ps, depth, &off_grp_sid))
313 if(!prs_uint32("off_sacl ", ps, depth, &off_sacl))
316 if(!prs_uint32("off_dacl ", ps, depth, &off_dacl))
319 max_offset = MAX(max_offset, prs_offset(ps));
321 if (off_owner_sid != 0) {
323 tmp_offset = prs_offset(ps);
324 if(!prs_set_offset(ps, old_offset + off_owner_sid))
327 if (UNMARSHALLING(ps)) {
329 if((psd->owner_sid = PRS_ALLOC_MEM(ps,DOM_SID,1)) == NULL)
333 if(!smb_io_dom_sid("owner_sid ", psd->owner_sid , ps, depth))
336 max_offset = MAX(max_offset, prs_offset(ps));
338 if (!prs_set_offset(ps,tmp_offset))
342 if (psd->group_sid != 0) {
344 tmp_offset = prs_offset(ps);
345 if(!prs_set_offset(ps, old_offset + off_grp_sid))
348 if (UNMARSHALLING(ps)) {
350 if((psd->group_sid = PRS_ALLOC_MEM(ps,DOM_SID,1)) == NULL)
354 if(!smb_io_dom_sid("grp_sid", psd->group_sid, ps, depth))
357 max_offset = MAX(max_offset, prs_offset(ps));
359 if (!prs_set_offset(ps,tmp_offset))
363 if ((psd->type & SEC_DESC_SACL_PRESENT) && off_sacl) {
364 tmp_offset = prs_offset(ps);
365 if(!prs_set_offset(ps, old_offset + off_sacl))
367 if(!sec_io_acl("sacl", &psd->sacl, ps, depth))
369 max_offset = MAX(max_offset, prs_offset(ps));
370 if (!prs_set_offset(ps,tmp_offset))
374 if ((psd->type & SEC_DESC_DACL_PRESENT) && off_dacl != 0) {
375 tmp_offset = prs_offset(ps);
376 if(!prs_set_offset(ps, old_offset + off_dacl))
378 if(!sec_io_acl("dacl", &psd->dacl, ps, depth))
380 max_offset = MAX(max_offset, prs_offset(ps));
381 if (!prs_set_offset(ps,tmp_offset))
385 if(!prs_set_offset(ps, max_offset))
391 /*******************************************************************
392 Reads or writes a SEC_DESC_BUF structure.
393 ********************************************************************/
395 bool sec_io_desc_buf(const char *desc, SEC_DESC_BUF **ppsdb, prs_struct *ps, int depth)
410 if (UNMARSHALLING(ps) && psdb == NULL) {
411 if((psdb = PRS_ALLOC_MEM(ps,SEC_DESC_BUF,1)) == NULL)
416 prs_debug(ps, depth, desc, "sec_io_desc_buf");
422 if(!prs_uint32_pre("max_len", ps, depth, &psdb->sd_size, &off_max_len))
426 if(!prs_uint32 ("ptr ", ps, depth, &ptr))
429 len = sec_desc_size(psdb->sd);
430 if(!prs_uint32_pre("len ", ps, depth, &len, &off_len))
433 old_offset = prs_offset(ps);
435 /* reading, length is non-zero; writing, descriptor is non-NULL */
436 if ((UNMARSHALLING(ps) && psdb->sd_size != 0) || (MARSHALLING(ps) && psdb->sd != NULL)) {
437 if(!sec_io_desc("sec ", &psdb->sd, ps, depth))
444 size = prs_offset(ps) - old_offset;
445 if(!prs_uint32_post("max_len", ps, depth, &psdb->sd_size, off_max_len, size == 0 ? psdb->sd_size : size))
448 if(!prs_uint32_post("len ", ps, depth, &len, off_len, size))