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/*
* Copyright (C) 2013 Kay Sievers
* Copyright (C) 2013 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Copyright (C) 2013 Daniel Mack <daniel@zonque.org>
* Copyright (C) 2013 Linux Foundation
*
* kdbus 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.
*/
#ifndef __KDBUS_NAMES_H
#define __KDBUS_NAMES_H
#include <linux/hashtable.h>
/**
* struct kdbus_name_registry - names registered for a bus
* @entries_hash: Map of entries
* @lock: Registry data lock
* @name_seq_last: Last used sequence number to assign to a name entry
*/
struct kdbus_name_registry {
DECLARE_HASHTABLE(entries_hash, 8);
struct mutex lock;
u64 name_seq_last;
};
/**
* struct kdbus_name_entry - well-know name entry
* @name: The well-known name
* @name_id: Sequence number of name entry to be able to uniquely
* identify a name over its registration lifetime
* @flags: KDBUS_NAME_* flags
* @queue_list: List of queued waiters for the well-known name
* @conn_entry: Entry in connection
* @hentry: Entry in registry map
* @conn: Connection owning the name
* @activator: Connection of the activator queuing incoming messages
*/
struct kdbus_name_entry {
char *name;
u64 name_id;
u64 flags;
struct list_head queue_list;
struct list_head conn_entry;
struct hlist_node hentry;
struct kdbus_conn *conn;
struct kdbus_conn *activator;
};
int kdbus_name_registry_new(struct kdbus_name_registry **reg);
void kdbus_name_registry_free(struct kdbus_name_registry *reg);
int kdbus_name_acquire(struct kdbus_name_registry *reg,
struct kdbus_conn *conn,
const char *name, u64 *flags,
struct kdbus_name_entry **entry);
int kdbus_cmd_name_acquire(struct kdbus_name_registry *reg,
struct kdbus_conn *conn,
struct kdbus_cmd_name *cmd);
int kdbus_cmd_name_release(struct kdbus_name_registry *reg,
struct kdbus_conn *conn,
const struct kdbus_cmd_name *cmd);
int kdbus_cmd_name_list(struct kdbus_name_registry *reg,
struct kdbus_conn *conn,
struct kdbus_cmd_name_list *cmd);
struct kdbus_name_entry *kdbus_name_lookup(struct kdbus_name_registry *reg,
const char *name);
void kdbus_name_remove_by_conn(struct kdbus_name_registry *reg,
struct kdbus_conn *conn);
bool kdbus_name_is_valid(const char *p, bool allow_wildcard);
#endif
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