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5b4e3de2bb
This removes special-case for initalising the children array in insert_in_object_tree(). talloc_realloc() handles the intial allocate case perfectly well, so there is no need to have this duplicated. This also restores having just one place were the rest of the elements are intialised, to ensure uniform behaviour. To do this, we have to rework insert_in_object_tree to have only one output variable, both because having both root and new_node as output variables was too confusing, and because otherwise the two pointers were being allowed to point at the same memory. Andrew Bartlett Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
93 lines
3.4 KiB
C
93 lines
3.4 KiB
C
/*
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Unix SMB/CIFS implementation.
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Copyright (C) Andrew Tridgell 2004
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Copyright (C) Gerald Carter 2005
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Copyright (C) Volker Lendecke 2007
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Copyright (C) Jeremy Allison 2008
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Copyright (C) Andrew Bartlett 2010
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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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _ACCESS_CHECK_H_
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#define _ACCESS_CHECK_H_
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#include "librpc/gen_ndr/security.h"
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/* Map generic access rights to object specific rights. This technique is
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used to give meaning to assigning read, write, execute and all access to
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objects. Each type of object has its own mapping of generic to object
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specific access rights. */
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void se_map_generic(uint32_t *access_mask, const struct generic_mapping *mapping);
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/* Map generic access rights to object specific rights for all the ACE's
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* in a security_acl.
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*/
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void security_acl_map_generic(struct security_acl *sa,
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const struct generic_mapping *mapping);
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/* Map standard access rights to object specific rights. This technique is
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used to give meaning to assigning read, write, execute and all access to
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objects. Each type of object has its own mapping of standard to object
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specific access rights. */
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void se_map_standard(uint32_t *access_mask, const struct standard_mapping *mapping);
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/*
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The main entry point for access checking. If returning ACCESS_DENIED
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this function returns the denied bits in the uint32_t pointed
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to by the access_granted pointer.
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*/
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NTSTATUS se_access_check(const struct security_descriptor *sd,
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const struct security_token *token,
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uint32_t access_desired,
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uint32_t *access_granted);
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/*
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The main entry point for access checking FOR THE FILE SERVER ONLY !
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If returning ACCESS_DENIED this function returns the denied bits in
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the uint32_t pointed to by the access_granted pointer.
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*/
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NTSTATUS se_file_access_check(const struct security_descriptor *sd,
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const struct security_token *token,
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bool priv_open_requested,
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uint32_t access_desired,
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uint32_t *access_granted);
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/* modified access check for the purposes of DS security
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* Lots of code duplication, it will ve united in just one
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* function eventually */
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NTSTATUS sec_access_check_ds(const struct security_descriptor *sd,
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const struct security_token *token,
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uint32_t access_desired,
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uint32_t *access_granted,
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struct object_tree *tree,
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struct dom_sid *replace_sid);
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bool insert_in_object_tree(TALLOC_CTX *mem_ctx,
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const struct GUID *guid,
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uint32_t init_access,
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struct object_tree *root,
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struct object_tree **new_node_out);
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/* search by GUID */
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struct object_tree *get_object_tree_by_GUID(struct object_tree *root,
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const struct GUID *guid);
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/* Change the granted access per each ACE */
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void object_tree_modify_access(struct object_tree *root,
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uint32_t access_mask);
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#endif
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