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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* policy.h Bus security policy
*
* Copyright (C) 2003 Red Hat, Inc.
*
* Licensed under the Academic Free License version 2.1
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef BUS_POLICY_H
#define BUS_POLICY_H
#include <dbus/dbus.h>
#include <dbus/dbus-string.h>
#include <dbus/dbus-list.h>
#include <dbus/dbus-sysdeps.h>
#include "bus.h"
typedef enum
{
BUS_POLICY_RULE_SEND,
BUS_POLICY_RULE_RECEIVE,
BUS_POLICY_RULE_OWN,
BUS_POLICY_RULE_USER,
BUS_POLICY_RULE_GROUP
} BusPolicyRuleType;
typedef enum
{
BUS_POLICY_RULE_ACCESS_DENY,
BUS_POLICY_RULE_ACCESS_ALLOW,
/** runtime check resulting in allow or deny */
BUS_POLICY_RULE_ACCESS_CHECK
} BusPolicyRuleAccess;
typedef enum
{
BUS_POLICY_TRISTATE_ANY = 0,
BUS_POLICY_TRISTATE_FALSE,
BUS_POLICY_TRISTATE_TRUE
} BusPolicyTristate;
/** determines whether the rule affects a connection, or some global item */
#define BUS_POLICY_RULE_IS_PER_CLIENT(rule) (!((rule)->type == BUS_POLICY_RULE_USER || \
(rule)->type == BUS_POLICY_RULE_GROUP))
struct BusPolicyRule
{
int refcount;
BusPolicyRuleType type;
unsigned int access : 2; /**< BusPolicyRuleAccess */
char *privilege; /**< for BUS_POLICY_RULE_ACCESS_CHECK */
union
{
struct
{
/* message type can be DBUS_MESSAGE_TYPE_INVALID meaning "any" */
int message_type;
/* any of these can be NULL meaning "any" */
char *path;
char *interface;
char *member;
char *error;
char *destination;
unsigned int max_fds;
unsigned int min_fds;
unsigned int eavesdrop : 1;
unsigned int requested_reply : 1;
unsigned int log : 1;
unsigned int destination_prefix : 1;
unsigned int broadcast : 2; /**< really a BusPolicyTristate */
} send;
struct
{
/* message type can be DBUS_MESSAGE_TYPE_INVALID meaning "any" */
int message_type;
/* any of these can be NULL meaning "any" */
char *path;
char *interface;
char *member;
char *error;
char *origin;
unsigned int max_fds;
unsigned int min_fds;
unsigned int eavesdrop : 1;
unsigned int requested_reply : 1;
} receive;
struct
{
/* can be NULL meaning "any" */
char *service_name;
/* if prefix is set, any name starting with service_name can be owned */
unsigned int prefix : 1;
} own;
struct
{
/* can be DBUS_UID_UNSET meaning "any" */
dbus_uid_t uid;
} user;
struct
{
/* can be DBUS_GID_UNSET meaning "any" */
dbus_gid_t gid;
} group;
} d;
};
BusPolicyRule* bus_policy_rule_new (BusPolicyRuleType type,
BusPolicyRuleAccess access);
BusPolicyRule* bus_policy_rule_ref (BusPolicyRule *rule);
void bus_policy_rule_unref (BusPolicyRule *rule);
BusPolicy* bus_policy_new (void);
BusPolicy* bus_policy_ref (BusPolicy *policy);
void bus_policy_unref (BusPolicy *policy);
BusClientPolicy* bus_policy_create_client_policy (BusPolicy *policy,
DBusConnection *connection,
DBusError *error);
dbus_bool_t bus_policy_allow_unix_user (BusPolicy *policy,
unsigned long uid);
dbus_bool_t bus_policy_allow_windows_user (BusPolicy *policy,
const char *windows_sid);
dbus_bool_t bus_policy_append_default_rule (BusPolicy *policy,
BusPolicyRule *rule);
dbus_bool_t bus_policy_append_mandatory_rule (BusPolicy *policy,
BusPolicyRule *rule);
dbus_bool_t bus_policy_append_user_rule (BusPolicy *policy,
dbus_uid_t uid,
BusPolicyRule *rule);
dbus_bool_t bus_policy_append_group_rule (BusPolicy *policy,
dbus_gid_t gid,
BusPolicyRule *rule);
dbus_bool_t bus_policy_append_console_rule (BusPolicy *policy,
dbus_bool_t at_console,
BusPolicyRule *rule);
dbus_bool_t bus_policy_merge (BusPolicy *policy,
BusPolicy *to_absorb);
BusClientPolicy* bus_client_policy_new (void);
BusClientPolicy* bus_client_policy_ref (BusClientPolicy *policy);
void bus_client_policy_unref (BusClientPolicy *policy);
BusResult bus_client_policy_check_can_send (DBusConnection *sender,
BusClientPolicy *policy,
BusRegistry *registry,
dbus_bool_t requested_reply,
DBusConnection *addressed_recipient,
DBusConnection *receiver,
DBusMessage *message,
dbus_int32_t *toggles,
dbus_bool_t *log,
const char **privilege_param,
BusDeferredMessage **deferred_message,
char **out_rule);
BusResult bus_client_policy_check_can_receive (BusClientPolicy *policy,
BusRegistry *registry,
dbus_bool_t requested_reply,
DBusConnection *sender,
DBusConnection *addressed_recipient,
DBusConnection *proposed_recipient,
DBusMessage *message,
dbus_int32_t *toggles,
const char **privilege_param,
BusDeferredMessage **deferred_message,
char **out_rule);
BusResult bus_client_policy_check_can_own (BusClientPolicy *policy,
const DBusString *service_name,
DBusConnection *connection,
DBusMessage *message);
#ifdef DBUS_ENABLE_EMBEDDED_TESTS
dbus_bool_t bus_policy_check_can_own (BusPolicy *policy,
const DBusString *service_name);
#endif
#endif /* BUS_POLICY_H */
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