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/*
Unix SMB/CIFS implementation.
libndr interface
Copyright (C) Andrew Tridgell 2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
enum ndr_err_code ndr_push_dom_sid(struct ndr_push *ndr, int ndr_flags, const struct dom_sid *r)
{
uint32_t cntr_sub_auths_0;
if (ndr_flags & NDR_SCALARS) {
NDR_CHECK(ndr_push_align(ndr, 4));
NDR_CHECK(ndr_push_uint8(ndr, NDR_SCALARS, r->sid_rev_num));
NDR_CHECK(ndr_push_int8(ndr, NDR_SCALARS, r->num_auths));
NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->id_auth, 6));
for (cntr_sub_auths_0 = 0; cntr_sub_auths_0 < r->num_auths; cntr_sub_auths_0++) {
NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->sub_auths[cntr_sub_auths_0]));
}
}
if (ndr_flags & NDR_BUFFERS) {
}
return NDR_ERR_SUCCESS;
}
enum ndr_err_code ndr_pull_dom_sid(struct ndr_pull *ndr, int ndr_flags, struct dom_sid *r)
{
uint32_t cntr_sub_auths_0;
if (ndr_flags & NDR_SCALARS) {
NDR_CHECK(ndr_pull_align(ndr, 4));
NDR_CHECK(ndr_pull_uint8(ndr, NDR_SCALARS, &r->sid_rev_num));
NDR_CHECK(ndr_pull_uint8(ndr, NDR_SCALARS, &r->num_auths));
if (r->num_auths > 15) {
return ndr_pull_error(ndr, NDR_ERR_RANGE, "value out of range");
}
NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->id_auth, 6));
for (cntr_sub_auths_0 = 0; cntr_sub_auths_0 < r->num_auths; cntr_sub_auths_0++) {
NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->sub_auths[cntr_sub_auths_0]));
}
}
if (ndr_flags & NDR_BUFFERS) {
}
return NDR_ERR_SUCCESS;
}
/*
convert a dom_sid to a string
*/
char *dom_sid_string(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
{
int i, ofs, maxlen;
uint32_t ia;
char *ret;
if (!sid) {
return talloc_strdup(mem_ctx, "(NULL SID)");
}
maxlen = sid->num_auths * 11 + 25;
ret = (char *)talloc_size(mem_ctx, maxlen);
if (!ret) return talloc_strdup(mem_ctx, "(SID ERR)");
/*
* BIG NOTE: this function only does SIDS where the identauth is not
* >= ^32 in a range of 2^48.
*/
ia = (sid->id_auth[5]) +
(sid->id_auth[4] << 8 ) +
(sid->id_auth[3] << 16) +
(sid->id_auth[2] << 24);
ofs = snprintf(ret, maxlen, "S-%u-%lu",
(unsigned int)sid->sid_rev_num, (unsigned long)ia);
for (i = 0; i < sid->num_auths; i++) {
ofs += snprintf(ret + ofs, maxlen - ofs, "-%lu", (unsigned long)sid->sub_auths[i]);
}
return ret;
}
/*
parse a dom_sid2 - this is a dom_sid but with an extra copy of the num_auths field
*/
enum ndr_err_code ndr_pull_dom_sid2(struct ndr_pull *ndr, int ndr_flags, struct dom_sid *sid)
{
uint32_t num_auths;
if (!(ndr_flags & NDR_SCALARS)) {
return NDR_ERR_SUCCESS;
}
NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &num_auths));
NDR_CHECK(ndr_pull_dom_sid(ndr, ndr_flags, sid));
if (sid->num_auths != num_auths) {
return ndr_pull_error(ndr, NDR_ERR_ARRAY_SIZE,
"Bad array size %u should exceed %u",
num_auths, sid->num_auths);
}
return NDR_ERR_SUCCESS;
}
/*
parse a dom_sid2 - this is a dom_sid but with an extra copy of the num_auths field
*/
enum ndr_err_code ndr_push_dom_sid2(struct ndr_push *ndr, int ndr_flags, const struct dom_sid *sid)
{
if (!(ndr_flags & NDR_SCALARS)) {
return NDR_ERR_SUCCESS;
}
NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, sid->num_auths));
return ndr_push_dom_sid(ndr, ndr_flags, sid);
}
/*
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
*/
enum ndr_err_code ndr_pull_dom_sid28(struct ndr_pull *ndr, int ndr_flags, struct dom_sid *sid)
{
enum ndr_err_code status;
struct ndr_pull *subndr;
if (!(ndr_flags & NDR_SCALARS)) {
return NDR_ERR_SUCCESS;
}
subndr = talloc_zero(ndr, struct ndr_pull);
NDR_ERR_HAVE_NO_MEMORY(subndr);
subndr->flags = ndr->flags;
subndr->current_mem_ctx = ndr->current_mem_ctx;
subndr->data = ndr->data + ndr->offset;
subndr->data_size = 28;
subndr->offset = 0;
NDR_CHECK(ndr_pull_advance(ndr, 28));
status = ndr_pull_dom_sid(subndr, ndr_flags, sid);
if (!NDR_ERR_CODE_IS_SUCCESS(status)) {
/* handle a w2k bug which send random data in the buffer */
ZERO_STRUCTP(sid);
}
return NDR_ERR_SUCCESS;
}
/*
push a dom_sid28 - this is a dom_sid in a 28 byte fixed buffer
*/
enum ndr_err_code ndr_push_dom_sid28(struct ndr_push *ndr, int ndr_flags, const struct dom_sid *sid)
{
uint32_t old_offset;
uint32_t padding;
if (!(ndr_flags & NDR_SCALARS)) {
return NDR_ERR_SUCCESS;
}
if (sid->num_auths > 5) {
return ndr_push_error(ndr, NDR_ERR_RANGE,
"dom_sid28 allows only upto 5 sub auth [%u]",
sid->num_auths);
}
old_offset = ndr->offset;
NDR_CHECK(ndr_push_dom_sid(ndr, ndr_flags, sid));
padding = 28 - (ndr->offset - old_offset);
if (padding > 0) {
NDR_CHECK(ndr_push_zero(ndr, padding));
}
return NDR_ERR_SUCCESS;
}
/*
parse a dom_sid0 - this is a dom_sid in a variable byte buffer, which is maybe empty
*/
enum ndr_err_code ndr_pull_dom_sid0(struct ndr_pull *ndr, int ndr_flags, struct dom_sid *sid)
{
if (!(ndr_flags & NDR_SCALARS)) {
return NDR_ERR_SUCCESS;
}
if (ndr->data_size == ndr->offset) {
ZERO_STRUCTP(sid);
return NDR_ERR_SUCCESS;
}
return ndr_pull_dom_sid(ndr, ndr_flags, sid);
}
/*
push a dom_sid0 - this is a dom_sid in a variable byte buffer, which is maybe empty
*/
enum ndr_err_code ndr_push_dom_sid0(struct ndr_push *ndr, int ndr_flags, const struct dom_sid *sid)
{
struct dom_sid zero_sid;
if (!(ndr_flags & NDR_SCALARS)) {
return NDR_ERR_SUCCESS;
}
if (!sid) {
return NDR_ERR_SUCCESS;
}
ZERO_STRUCT(zero_sid);
if (memcmp(&zero_sid, sid, sizeof(zero_sid)) == 0) {
return NDR_ERR_SUCCESS;
}
return ndr_push_dom_sid(ndr, ndr_flags, sid);
}
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