r3810: create a LIB_SECURITY subsystem

- move dom_sid, security_descriptor, security_* funtions to one place
  and rename some of them

metze
(This used to be commit b620bdd672cfdf0e009492e648b0709e6b6d8596)

1 files changed, 102 insertions, 0 deletions

diff --git a/source4/libcli/security/security_descriptor.c b/source4/libcli/security/security_descriptor.c
new file mode 100644
index 0000000000..255836066a
--- /dev/null
+++ b/source4/libcli/security/security_descriptor.c
@@ -0,0 +1,102 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   security descriptror utility functions
+
+   Copyright (C) Andrew Tridgell 		2004
+      
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "librpc/gen_ndr/ndr_security.h"
+
+/*
+  return a blank security descriptor (no owners, dacl or sacl)
+*/
+struct security_descriptor *security_descriptor_initialise(TALLOC_CTX *mem_ctx)
+{
+	struct security_descriptor *sd;
+
+	sd = talloc_p(mem_ctx, struct security_descriptor);
+	if (!sd) {
+		return NULL;
+	}
+
+	sd->revision = SD_REVISION;
+	/* we mark as self relative, even though it isn't while it remains
+	   a pointer in memory because this simplifies the ndr code later.
+	   All SDs that we store/emit are in fact SELF_RELATIVE
+	*/
+	sd->type = SEC_DESC_SELF_RELATIVE;
+
+	sd->owner_sid = NULL;
+	sd->group_sid = NULL;
+	sd->sacl = NULL;
+	sd->dacl = NULL;
+
+	return sd;
+}
+
+/* 
+   talloc and copy a security descriptor
+ */
+struct security_descriptor *security_descriptor_copy(TALLOC_CTX *mem_ctx, 
+							const struct security_descriptor *osd)
+{
+	struct security_descriptor *nsd;
+
+	/* FIXME */
+	DEBUG(1, ("security_descriptor_copy(): sorry unimplemented yet\n"));
+	nsd = NULL;
+
+	return nsd;
+}
+
+NTSTATUS security_check_dacl(struct security_token *st, struct security_descriptor *sd, uint32 access_mask)
+{
+	size_t i,y;
+	NTSTATUS status = NT_STATUS_ACCESS_DENIED;
+
+	DEBUG(1, ("security_check_dacl(): sorry untested yet\n"));
+	return status;
+
+	if (!sd->dacl) {
+		return NT_STATUS_INVALID_ACL;
+	}
+
+	for (i=0; i < st->num_sids; i++) {
+		for (y=0; y < sd->dacl->num_aces; y++) {
+			if (dom_sid_equal(&st->sids[i], &sd->dacl->aces[y].trustee)) {
+				switch (sd->dacl->aces[y].type) {
+					case SEC_ACE_TYPE_ACCESS_ALLOWED:
+						if (access_mask & sd->dacl->aces[y].access_mask) {
+							status = NT_STATUS_OK;
+						}
+						break;
+					case SEC_ACE_TYPE_ACCESS_DENIED:
+						if (access_mask & sd->dacl->aces[y].access_mask) {
+							return NT_STATUS_ACCESS_DENIED;
+						}
+						break;
+					default:
+						return NT_STATUS_INVALID_ACL;
+				}
+			}
+		}
+	}
+
+	return status;
+}