bus: add basic dbus1 policy parser

Enforcement is still missing, but at least we can parse it now.

1 files changed, 84 insertions, 0 deletions

diff --git a/src/bus-proxyd/bus-policy.h b/src/bus-proxyd/bus-policy.h
new file mode 100644
index 0000000000..cff2613e50
--- /dev/null
+++ b/src/bus-proxyd/bus-policy.h
@@ -0,0 +1,84 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2013 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+
+#include "list.h"
+#include "hashmap.h"
+
+typedef enum PolicyItemType {
+        _POLICY_ITEM_TYPE_UNSET = 0,
+        POLICY_ITEM_ALLOW,
+        POLICY_ITEM_DENY,
+        _POLICY_ITEM_TYPE_MAX,
+        _POLICY_ITEM_TYPE_INVALID = -1,
+} PolicyItemType;
+
+typedef enum PolicyItemClass {
+        _POLICY_ITEM_CLASS_UNSET = 0,
+        POLICY_ITEM_SEND,
+        POLICY_ITEM_RECV,
+        POLICY_ITEM_OWN,
+        POLICY_ITEM_OWN_PREFIX,
+        POLICY_ITEM_USER,
+        POLICY_ITEM_GROUP,
+        _POLICY_ITEM_CLASS_MAX,
+        _POLICY_ITEM_CLASS_INVALID = -1,
+} PolicyItemClass;
+
+typedef struct PolicyItem PolicyItem;
+
+struct PolicyItem {
+        PolicyItemType type;
+        PolicyItemClass class;
+        char *interface;
+        char *member;
+        char *error;
+        char *path;
+        char *name;
+        uint8_t message_type;
+        uid_t uid;
+        gid_t gid;
+
+        bool uid_valid, gid_valid;
+
+        LIST_FIELDS(PolicyItem, items);
+};
+
+typedef struct Policy {
+        LIST_HEAD(PolicyItem, default_items);
+        LIST_HEAD(PolicyItem, mandatory_items);
+        Hashmap *user_items;
+        Hashmap *group_items;
+} Policy;
+
+int policy_load(Policy *p);
+void policy_free(Policy *p);
+
+void policy_dump(Policy *p);
+
+const char* policy_item_type_to_string(PolicyItemType t) _const_;
+PolicyItemType policy_item_type_from_string(const char *s) _pure_;
+
+const char* policy_item_class_to_string(PolicyItemClass t) _const_;
+PolicyItemClass policy_item_class_from_string(const char *s) _pure_;