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7447362c53
If we test the policy against multiple destination names, we really should not print warnings if one of the names results in DENY. Instead, pass the whole array of names to the policy and let it deal with it.
152 lines
4.6 KiB
C
152 lines
4.6 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <inttypes.h>
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#include <pthread.h>
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#include "list.h"
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#include "hashmap.h"
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#include "set.h"
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typedef enum PolicyItemType {
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_POLICY_ITEM_TYPE_UNSET = 0,
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POLICY_ITEM_ALLOW,
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POLICY_ITEM_DENY,
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_POLICY_ITEM_TYPE_MAX,
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_POLICY_ITEM_TYPE_INVALID = -1,
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} PolicyItemType;
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typedef enum PolicyItemClass {
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_POLICY_ITEM_CLASS_UNSET = 0,
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POLICY_ITEM_SEND,
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POLICY_ITEM_RECV,
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POLICY_ITEM_OWN,
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POLICY_ITEM_OWN_PREFIX,
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POLICY_ITEM_USER,
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POLICY_ITEM_GROUP,
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POLICY_ITEM_IGNORE,
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_POLICY_ITEM_CLASS_MAX,
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_POLICY_ITEM_CLASS_INVALID = -1,
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} PolicyItemClass;
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typedef struct PolicyItem PolicyItem;
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struct PolicyItem {
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PolicyItemType type;
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PolicyItemClass class;
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char *interface;
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char *member;
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char *error;
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char *path;
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char *name;
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uint8_t message_type;
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uid_t uid;
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gid_t gid;
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bool uid_valid, gid_valid;
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LIST_FIELDS(PolicyItem, items);
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};
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typedef struct Policy {
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LIST_HEAD(PolicyItem, default_items);
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LIST_HEAD(PolicyItem, mandatory_items);
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LIST_HEAD(PolicyItem, on_console_items);
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LIST_HEAD(PolicyItem, no_console_items);
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Hashmap *user_items;
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Hashmap *group_items;
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} Policy;
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typedef struct SharedPolicy {
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char **configuration;
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pthread_mutex_t lock;
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pthread_rwlock_t rwlock;
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Policy buffer;
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Policy *policy;
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} SharedPolicy;
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/* policy */
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int policy_load(Policy *p, char **files);
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void policy_free(Policy *p);
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bool policy_check_own(Policy *p, uid_t uid, gid_t gid, const char *name);
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bool policy_check_hello(Policy *p, uid_t uid, gid_t gid);
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bool policy_check_one_recv(Policy *p,
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uid_t uid,
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gid_t gid,
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int message_type,
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const char *name,
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const char *path,
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const char *interface,
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const char *member);
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bool policy_check_recv(Policy *p,
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uid_t uid,
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gid_t gid,
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int message_type,
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Set *names,
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char **namesv,
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const char *path,
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const char *interface,
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const char *member,
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bool dbus_to_kernel);
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bool policy_check_one_send(Policy *p,
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uid_t uid,
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gid_t gid,
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int message_type,
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const char *name,
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const char *path,
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const char *interface,
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const char *member);
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bool policy_check_send(Policy *p,
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uid_t uid,
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gid_t gid,
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int message_type,
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Set *names,
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char **namesv,
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const char *path,
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const char *interface,
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const char *member,
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bool dbus_to_kernel,
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char **out_used_name);
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void policy_dump(Policy *p);
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const char* policy_item_type_to_string(PolicyItemType t) _const_;
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PolicyItemType policy_item_type_from_string(const char *s) _pure_;
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const char* policy_item_class_to_string(PolicyItemClass t) _const_;
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PolicyItemClass policy_item_class_from_string(const char *s) _pure_;
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/* shared policy */
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int shared_policy_new(SharedPolicy **out);
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SharedPolicy *shared_policy_free(SharedPolicy *sp);
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int shared_policy_reload(SharedPolicy *sp);
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int shared_policy_preload(SharedPolicy *sp, char **configuration);
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Policy *shared_policy_acquire(SharedPolicy *sp);
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void shared_policy_release(SharedPolicy *sp, Policy *p);
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DEFINE_TRIVIAL_CLEANUP_FUNC(SharedPolicy*, shared_policy_free);
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