Owner and group defaulting.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>

1 files changed, 117 insertions, 0 deletions

diff --git a/source4/libcli/security/create_descriptor.c b/source4/libcli/security/create_descriptor.c
new file mode 100644
index 00000000000..6a928273b78
--- /dev/null
+++ b/source4/libcli/security/create_descriptor.c
@@ -0,0 +1,117 @@
+/*
+   Copyright (C) Nadezhda Ivanova 2009
+
+   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/>.
+*/
+
+/*
+ *  Name: create_descriptor
+ *
+ *  Component: routines for calculating and creating security descriptors
+ *  as described in MS-DTYP 2.5.2.2
+ *
+ *  Description:
+ *
+ *
+ *  Author: Nadezhda Ivanova
+ */
+#include "includes.h"
+#include "libcli/security/security.h"
+
+/* the mapping function for generic rights for DS.(GA,GR,GW,GX)
+ * The mapping function is passed as an argument to the
+ * descriptor calculating routine and depends on the security
+ * manager that calls the calculating routine.
+ * TODO: need similar mappings for the file system and
+ * registry security managers in order to make this code
+ * generic for all security managers
+ */
+
+uint32_t map_generic_rights_ds(uint32_t access_mask)
+{
+	if (access_mask & SEC_GENERIC_ALL){
+		access_mask |= SEC_ADS_GENERIC_ALL;
+		access_mask = ~SEC_GENERIC_ALL;
+	}
+
+	if (access_mask & SEC_GENERIC_EXECUTE){
+		access_mask |= SEC_ADS_GENERIC_EXECUTE;
+		access_mask = ~SEC_GENERIC_EXECUTE;
+	}
+
+	if (access_mask & SEC_GENERIC_WRITE){
+		access_mask |= SEC_ADS_GENERIC_WRITE;
+		access_mask &= ~SEC_GENERIC_WRITE;
+	}
+
+	if (access_mask & SEC_GENERIC_READ){
+		access_mask |= SEC_ADS_GENERIC_READ;
+		access_mask &= ~SEC_GENERIC_READ;
+	}
+
+	return access_mask;
+}
+
+struct security_descriptor *create_security_descriptor(TALLOC_CTX *mem_ctx,
+						       struct security_descriptor *parent_sd,
+						       struct security_descriptor *creator_sd,
+						       bool is_container,
+						       struct GUID *object_list,
+						       uint32_t inherit_flags,
+						       struct security_token *token,
+						       struct dom_sid *default_owner, /* valid only for DS, NULL for the other RSs */
+						       struct dom_sid *default_group, /* valid only for DS, NULL for the other RSs */
+						       uint32_t (*generic_map)(uint32_t access_mask))
+{
+	struct security_descriptor *new_sd;
+	struct dom_sid *new_owner = NULL;
+	struct dom_sid *new_group = NULL;
+
+	new_sd = security_descriptor_initialise(mem_ctx);
+	if (!new_sd)
+		return NULL;
+	if (!creator_sd || !creator_sd->owner_sid){
+		if (inherit_flags & SEC_OWNER_FROM_PARENT)
+			new_owner = parent_sd->owner_sid;
+		else if (!default_owner)
+			new_owner = token->user_sid;
+		else
+			new_owner = default_owner;
+	}
+	else
+		new_owner = creator_sd->owner_sid;
+
+	if (!creator_sd || !creator_sd->group_sid){
+		if (inherit_flags & SEC_GROUP_FROM_PARENT && parent_sd)
+			new_group = parent_sd->group_sid;
+		else if (!default_group)
+			new_group = token->group_sid;
+		else new_group = default_group;
+	}
+	else
+		new_group = creator_sd->group_sid;
+
+	new_sd->owner_sid = talloc_memdup(new_sd, new_owner, sizeof(struct dom_sid));
+	new_sd->group_sid = talloc_memdup(new_sd, new_group, sizeof(struct dom_sid));
+	if (!new_sd->owner_sid || !new_sd->group_sid){
+		talloc_free(new_sd);
+		return NULL;
+	}
+	/* Todo remove */
+	if (creator_sd && creator_sd->type & SEC_DESC_DACL_PRESENT){
+		new_sd->dacl = security_acl_dup(new_sd, creator_sd->dacl);
+		new_sd->type |= SEC_DESC_DACL_PRESENT;
+	}
+	return new_sd;
+}