1 files changed, 113 insertions, 0 deletions
diff --git a/source3/lib/util_sd.c b/source3/lib/util_sd.c
new file mode 100644
index 00000000000..b653fe9745d
--- /dev/null
+++ b/source3/lib/util_sd.c
@@ -0,0 +1,113 @@
+/*
+   Unix SMB/CIFS implementation.
+   Security Descriptor (SD) helper functions
+
+   Copyright (C) Andrew Tridgell 2000
+   Copyright (C) Tim Potter      2000
+   Copyright (C) Jeremy Allison  2000
+   Copyright (C) Jelmer Vernooij 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"
+#include "libsmb/libsmb.h"
+#include "util_sd.h"
+#include "librpc/gen_ndr/ndr_lsa.h"
+#include "../libcli/security/security.h"
+#include "rpc_client/cli_pipe.h"
+#include "rpc_client/cli_lsarpc.h"
+
+/* Open cli connection and policy handle */
+static NTSTATUS cli_lsa_lookup_sid(struct cli_state *cli,
+				   const struct dom_sid *sid,
+				   TALLOC_CTX *mem_ctx,
+				   enum lsa_SidType *type,
+				   char **domain, char **name)
+{
+	uint16 orig_cnum = cli_state_get_tid(cli);
+	struct rpc_pipe_client *p = NULL;
+	struct policy_handle handle;
+	NTSTATUS status;
+	TALLOC_CTX *frame = talloc_stackframe();
+	enum lsa_SidType *types;
+	char **domains;
+	char **names;
+
+	status = cli_tree_connect(cli, "IPC$", "?????", "", 0);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto tcon_fail;
+	}
+
+	status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc,
+					  &p);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto fail;
+	}
+
+	status = rpccli_lsa_open_policy(p, talloc_tos(), True,
+					GENERIC_EXECUTE_ACCESS, &handle);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto fail;
+	}
+
+	status = rpccli_lsa_lookup_sids(p, talloc_tos(), &handle, 1, sid,
+					&domains, &names, &types);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto fail;
+	}
+
+	*type = types[0];
+	*domain = talloc_move(mem_ctx, &domains[0]);
+	*name = talloc_move(mem_ctx, &names[0]);
+
+	status = NT_STATUS_OK;
+ fail:
+	TALLOC_FREE(p);
+	cli_tdis(cli);
+ tcon_fail:
+	cli_state_set_tid(cli, orig_cnum);
+	TALLOC_FREE(frame);
+	return status;
+}
+
+/* convert a SID to a string, either numeric or username/group */
+void SidToString(struct cli_state *cli, fstring str, const struct dom_sid *sid,
+		 bool numeric)
+{
+	char *domain = NULL;
+	char *name = NULL;
+	enum lsa_SidType type;
+	NTSTATUS status;
+
+	sid_to_fstring(str, sid);
+
+	if (numeric) {
+		return;
+	}
+
+	status = cli_lsa_lookup_sid(cli, sid, talloc_tos(), &type,
+				    &domain, &name);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		return;
+	}
+
+	if (*domain) {
+		slprintf(str, sizeof(fstring) - 1, "%s%s%s",
+			domain, lp_winbind_separator(), name);
+	} else {
+		fstrcpy(str, name);
+	}
+}