2 Unix SMB/CIFS implementation.
4 fast routines for getting the wire size of security objects
6 Copyright (C) Andrew Tridgell 2003
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "librpc/gen_ndr/ndr_security.h"
25 #include "libcli/security/security.h"
28 return the wire size of a dom_sid
30 size_t ndr_size_dom_sid(const struct dom_sid *sid, int flags)
33 return 8 + 4*sid->num_auths;
36 size_t ndr_size_dom_sid28(const struct dom_sid *sid, int flags)
38 struct dom_sid zero_sid;
42 ZERO_STRUCT(zero_sid);
44 if (memcmp(&zero_sid, sid, sizeof(zero_sid)) == 0) {
48 return 8 + 4*sid->num_auths;
52 return the wire size of a security_ace
54 size_t ndr_size_security_ace(const struct security_ace *ace, int flags)
60 ret = 8 + ndr_size_dom_sid(&ace->trustee, flags);
63 case SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
64 case SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
65 case SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
66 case SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
67 ret += 4; /* uint32 bitmap ace->object.object.flags */
68 if (ace->object.object.flags & SEC_ACE_OBJECT_TYPE_PRESENT) {
69 ret += 16; /* GUID ace->object.object.type.type */
71 if (ace->object.object.flags & SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT) {
72 ret += 16; /* GUID ace->object.object.inherited_typeinherited_type */
83 return the wire size of a security_acl
85 size_t ndr_size_security_acl(const struct security_acl *acl, int flags)
91 for (i=0;i<acl->num_aces;i++) {
92 ret += ndr_size_security_ace(&acl->aces[i], flags);
98 return the wire size of a security descriptor
100 size_t ndr_size_security_descriptor(const struct security_descriptor *sd, int flags)
106 ret += ndr_size_dom_sid(sd->owner_sid, flags);
107 ret += ndr_size_dom_sid(sd->group_sid, flags);
108 ret += ndr_size_security_acl(sd->dacl, flags);
109 ret += ndr_size_security_acl(sd->sacl, flags);
116 void ndr_print_dom_sid(struct ndr_print *ndr, const char *name, const struct dom_sid *sid)
118 ndr->print(ndr, "%-25s: %s", name, dom_sid_string(ndr, sid));
121 void ndr_print_dom_sid2(struct ndr_print *ndr, const char *name, const struct dom_sid *sid)
123 ndr_print_dom_sid(ndr, name, sid);
126 void ndr_print_dom_sid28(struct ndr_print *ndr, const char *name, const struct dom_sid *sid)
128 ndr_print_dom_sid(ndr, name, sid);
133 parse a dom_sid2 - this is a dom_sid but with an extra copy of the num_auths field
135 NTSTATUS ndr_pull_dom_sid2(struct ndr_pull *ndr, int ndr_flags, struct dom_sid *sid)
138 if (!(ndr_flags & NDR_SCALARS)) {
141 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &num_auths));
142 NDR_CHECK(ndr_pull_dom_sid(ndr, ndr_flags, sid));
143 if (sid->num_auths != num_auths) {
144 return ndr_pull_error(ndr, NDR_ERR_ARRAY_SIZE,
145 "Bad array size %u should exceed %u",
146 num_auths, sid->num_auths);
152 parse a dom_sid2 - this is a dom_sid but with an extra copy of the num_auths field
154 NTSTATUS ndr_push_dom_sid2(struct ndr_push *ndr, int ndr_flags, const struct dom_sid *sid)
156 if (!(ndr_flags & NDR_SCALARS)) {
159 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, sid->num_auths));
160 return ndr_push_dom_sid(ndr, ndr_flags, sid);
164 parse a dom_sid28 - this is a dom_sid in a fixed 28 byte buffer, so we need to ensure there are only upto 5 sub_auth
166 NTSTATUS ndr_pull_dom_sid28(struct ndr_pull *ndr, int ndr_flags, struct dom_sid *sid)
169 struct ndr_pull *subndr;
171 if (!(ndr_flags & NDR_SCALARS)) {
175 subndr = talloc_zero(ndr, struct ndr_pull);
176 NT_STATUS_HAVE_NO_MEMORY(subndr);
177 subndr->flags = ndr->flags;
178 subndr->current_mem_ctx = ndr->current_mem_ctx;
180 subndr->data = ndr->data + ndr->offset;
181 subndr->data_size = 28;
184 NDR_CHECK(ndr_pull_advance(ndr, 28));
186 status = ndr_pull_dom_sid(subndr, ndr_flags, sid);
187 if (!NT_STATUS_IS_OK(status)) {
188 /* handle a w2k bug which send random data in the buffer */
196 push a dom_sid28 - this is a dom_sid in a 28 byte fixed buffer
198 NTSTATUS ndr_push_dom_sid28(struct ndr_push *ndr, int ndr_flags, const struct dom_sid *sid)
203 if (!(ndr_flags & NDR_SCALARS)) {
207 if (sid->num_auths > 5) {
208 return ndr_push_error(ndr, NDR_ERR_RANGE,
209 "dom_sid28 allows only upto 5 sub auth [%u]",
213 old_offset = ndr->offset;
214 NDR_CHECK(ndr_push_dom_sid(ndr, ndr_flags, sid));
216 padding = 28 - (ndr->offset - old_offset);
219 NDR_CHECK(ndr_push_zero(ndr, padding));