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ec96a742f7
- with this it's also possible to talloc_free() the ndr_pull structure and talloc_steal(ndr->current_mem_ctx); to fetch the whole data of the hierachical tree - if the toplevel struct is a valid talloc pointer it's also possible to use NDR_PULL_SET_MEM_CTX(ndr, mem_ctx); to the the toplevel pointer with the struct pointer (NOTE: no callers are using this yet, but they shortly will) metze (This used to be commit 1a2b8369586642cc9bc15d015c1e4256c3a92732)
121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
/*
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Unix SMB/CIFS implementation.
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routines for marshalling/unmarshalling security descriptors
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and related structures
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Copyright (C) Andrew Tridgell 2003
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "librpc/gen_ndr/ndr_security.h"
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/*
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parse a dom_sid2 - this is a dom_sid but with an extra copy of the num_auths field
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*/
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NTSTATUS ndr_pull_dom_sid2(struct ndr_pull *ndr, int ndr_flags, struct dom_sid *sid)
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{
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uint32_t num_auths;
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if (!(ndr_flags & NDR_SCALARS)) {
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return NT_STATUS_OK;
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}
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NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &num_auths));
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NDR_CHECK(ndr_pull_dom_sid(ndr, ndr_flags, sid));
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if (sid->num_auths != num_auths) {
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return ndr_pull_error(ndr, NDR_ERR_ARRAY_SIZE,
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"Bad array size %u should exceed %u",
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num_auths, sid->num_auths);
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}
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return NT_STATUS_OK;
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}
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/*
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parse a dom_sid2 - this is a dom_sid but with an extra copy of the num_auths field
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*/
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NTSTATUS ndr_push_dom_sid2(struct ndr_push *ndr, int ndr_flags, const struct dom_sid *sid)
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{
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if (!(ndr_flags & NDR_SCALARS)) {
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return NT_STATUS_OK;
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}
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NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, sid->num_auths));
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return ndr_push_dom_sid(ndr, ndr_flags, sid);
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}
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/*
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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
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*/
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NTSTATUS ndr_pull_dom_sid28(struct ndr_pull *ndr, int ndr_flags, struct dom_sid *sid)
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{
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NTSTATUS status;
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struct ndr_pull *subndr;
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if (!(ndr_flags & NDR_SCALARS)) {
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return NT_STATUS_OK;
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}
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subndr = talloc_zero(ndr, struct ndr_pull);
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NT_STATUS_HAVE_NO_MEMORY(subndr);
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subndr->flags = ndr->flags;
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subndr->current_mem_ctx = ndr->current_mem_ctx;
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subndr->data = ndr->data + ndr->offset;
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subndr->data_size = 28;
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subndr->offset = 0;
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NDR_CHECK(ndr_pull_advance(ndr, 28));
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status = ndr_pull_dom_sid(subndr, ndr_flags, sid);
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if (!NT_STATUS_IS_OK(status)) {
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/* handle a w2k bug which send random data in the buffer */
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ZERO_STRUCTP(sid);
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}
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return NT_STATUS_OK;
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}
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/*
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push a dom_sid28 - this is a dom_sid in a 28 byte fixed buffer
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*/
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NTSTATUS ndr_push_dom_sid28(struct ndr_push *ndr, int ndr_flags, const struct dom_sid *sid)
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{
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uint32_t old_offset;
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uint32_t padding;
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if (!(ndr_flags & NDR_SCALARS)) {
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return NT_STATUS_OK;
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}
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if (sid->num_auths > 5) {
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return ndr_push_error(ndr, NDR_ERR_RANGE,
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"dom_sid28 allows only upto 5 sub auth [%u]",
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sid->num_auths);
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}
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old_offset = ndr->offset;
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NDR_CHECK(ndr_push_dom_sid(ndr, ndr_flags, sid));
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padding = 28 - (ndr->offset - old_offset);
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if (padding > 0) {
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NDR_CHECK(ndr_push_zero(ndr, padding));
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}
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return NT_STATUS_OK;
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}
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