s3-passdb: move util_unixsids.c out of passdb.

Guenther

1 files changed, 116 insertions, 0 deletions

diff --git a/source3/lib/util_unixsids.c b/source3/lib/util_unixsids.c
new file mode 100644
index 0000000000..8db66d6e89
--- /dev/null
+++ b/source3/lib/util_unixsids.c
@@ -0,0 +1,116 @@
+/*
+   Unix SMB/CIFS implementation.
+   Translate unix-defined names to SIDs and vice versa
+   Copyright (C) Volker Lendecke 2005
+
+   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 "system/passwd.h"
+#include "../libcli/security/security.h"
+#include "../lib/util/util_pw.h"
+
+bool sid_check_is_unix_users(const struct dom_sid *sid)
+{
+	return dom_sid_equal(sid, &global_sid_Unix_Users);
+}
+
+bool sid_check_is_in_unix_users(const struct dom_sid *sid)
+{
+	struct dom_sid dom_sid;
+
+	sid_copy(&dom_sid, sid);
+	sid_split_rid(&dom_sid, NULL);
+
+	return sid_check_is_unix_users(&dom_sid);
+}
+
+void uid_to_unix_users_sid(uid_t uid, struct dom_sid *sid)
+{
+	/*
+	 * This can never fail, we know that global_sid_Unix_Users is
+	 * short enough for a domain sid.
+	 */
+	sid_compose(sid, &global_sid_Unix_Users, uid);
+}
+
+void gid_to_unix_groups_sid(gid_t gid, struct dom_sid *sid)
+{
+	/*
+	 * This can never fail, we know that global_sid_Unix_Groups is
+	 * short enough for a domain sid.
+	 */
+	sid_compose(sid, &global_sid_Unix_Groups, gid);
+}
+
+const char *unix_users_domain_name(void)
+{
+	return "Unix User";
+}
+
+bool lookup_unix_user_name(const char *name, struct dom_sid *sid)
+{
+	struct passwd *pwd;
+	bool ret;
+
+	pwd = Get_Pwnam_alloc(talloc_tos(), name);
+	if (pwd == NULL) {
+		return False;
+	}
+
+	/*
+	 * For 64-bit uid's we have enough space in the whole SID,
+	 * should they become necessary
+	 */
+	ret = sid_compose(sid, &global_sid_Unix_Users, pwd->pw_uid);
+	TALLOC_FREE(pwd);
+	return ret;
+}
+
+bool sid_check_is_unix_groups(const struct dom_sid *sid)
+{
+	return dom_sid_equal(sid, &global_sid_Unix_Groups);
+}
+
+bool sid_check_is_in_unix_groups(const struct dom_sid *sid)
+{
+	struct dom_sid dom_sid;
+
+	sid_copy(&dom_sid, sid);
+	sid_split_rid(&dom_sid, NULL);
+
+	return sid_check_is_unix_groups(&dom_sid);
+}
+
+const char *unix_groups_domain_name(void)
+{
+	return "Unix Group";
+}
+
+bool lookup_unix_group_name(const char *name, struct dom_sid *sid)
+{
+	struct group *grp;
+
+	grp = sys_getgrnam(name);
+	if (grp == NULL) {
+		return False;
+	}
+
+	/*
+	 * For 64-bit gid's we have enough space in the whole SID,
+	 * should they become necessary
+	 */
+	return sid_compose(sid, &global_sid_Unix_Groups, grp->gr_gid);
+}