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/*-*- 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 <pthread.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_IGNORE,
_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);
LIST_HEAD(PolicyItem, on_console_items);
LIST_HEAD(PolicyItem, no_console_items);
Hashmap *user_items;
Hashmap *group_items;
} Policy;
typedef struct SharedPolicy {
char **configuration;
pthread_mutex_t lock;
pthread_rwlock_t rwlock;
Policy buffer;
Policy *policy;
} SharedPolicy;
/* policy */
int policy_load(Policy *p, char **files);
void policy_free(Policy *p);
bool policy_check_own(Policy *p, uid_t uid, gid_t gid, const char *name);
bool policy_check_hello(Policy *p, uid_t uid, gid_t gid);
bool policy_check_recv(Policy *p,
uid_t uid,
gid_t gid,
int message_type,
const char *name,
const char *path,
const char *interface,
const char *member,
bool dbus_to_kernel);
bool policy_check_send(Policy *p,
uid_t uid,
gid_t gid,
int message_type,
const char *name,
const char *path,
const char *interface,
const char *member,
bool dbus_to_kernel);
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_;
/* shared policy */
int shared_policy_new(SharedPolicy **out);
SharedPolicy *shared_policy_free(SharedPolicy *sp);
int shared_policy_reload(SharedPolicy *sp);
int shared_policy_preload(SharedPolicy *sp, char **configuration);
Policy *shared_policy_acquire(SharedPolicy *sp);
void shared_policy_release(SharedPolicy *sp, Policy *p);
DEFINE_TRIVIAL_CLEANUP_FUNC(SharedPolicy*, shared_policy_free);
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