| /* |
| * Copyright (C) 2013-2015 Kay Sievers |
| * Copyright (C) 2013-2015 Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| * Copyright (C) 2013-2015 Daniel Mack <daniel@zonque.org> |
| * Copyright (C) 2013-2015 David Herrmann <dh.herrmann@gmail.com> |
| * Copyright (C) 2013-2015 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. |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| #include <linux/fs.h> |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| |
| #include "util.h" |
| #include "fs.h" |
| #include "handle.h" |
| #include "metadata.h" |
| #include "node.h" |
| |
| /* |
| * This is a simplified outline of the internal kdbus object relations, for |
| * those interested in the inner life of the driver implementation. |
| * |
| * From a mount point's (domain's) perspective: |
| * |
| * struct kdbus_domain |
| * |» struct kdbus_user *user (many, owned) |
| * '» struct kdbus_node node (embedded) |
| * |» struct kdbus_node children (many, referenced) |
| * |» struct kdbus_node *parent (pinned) |
| * '» struct kdbus_bus (many, pinned) |
| * |» struct kdbus_node node (embedded) |
| * '» struct kdbus_ep (many, pinned) |
| * |» struct kdbus_node node (embedded) |
| * |» struct kdbus_bus *bus (pinned) |
| * |» struct kdbus_conn conn_list (many, pinned) |
| * | |» struct kdbus_ep *ep (pinned) |
| * | |» struct kdbus_name_entry *activator_of (owned) |
| * | |» struct kdbus_match_db *match_db (owned) |
| * | |» struct kdbus_meta *meta (owned) |
| * | |» struct kdbus_match_db *match_db (owned) |
| * | | '» struct kdbus_match_entry (many, owned) |
| * | | |
| * | |» struct kdbus_pool *pool (owned) |
| * | | '» struct kdbus_pool_slice *slices (many, owned) |
| * | | '» struct kdbus_pool *pool (pinned) |
| * | | |
| * | |» struct kdbus_user *user (pinned) |
| * | `» struct kdbus_queue_entry entries (many, embedded) |
| * | |» struct kdbus_pool_slice *slice (pinned) |
| * | |» struct kdbus_conn_reply *reply (owned) |
| * | '» struct kdbus_user *user (pinned) |
| * | |
| * '» struct kdbus_user *user (pinned) |
| * '» struct kdbus_policy_db policy_db (embedded) |
| * |» struct kdbus_policy_db_entry (many, owned) |
| * | |» struct kdbus_conn (pinned) |
| * | '» struct kdbus_ep (pinned) |
| * | |
| * '» struct kdbus_policy_db_cache_entry (many, owned) |
| * '» struct kdbus_conn (pinned) |
| * |
| * For the life-time of a file descriptor derived from calling open() on a file |
| * inside the mount point: |
| * |
| * struct kdbus_handle |
| * |» struct kdbus_meta *meta (owned) |
| * |» struct kdbus_ep *ep (pinned) |
| * |» struct kdbus_conn *conn (owned) |
| * '» struct kdbus_ep *ep (owned) |
| */ |
| |
| /* kdbus mount-point /sys/fs/kdbus */ |
| static struct kobject *kdbus_dir; |
| |
| /* global module option to apply a mask to exported metadata */ |
| unsigned long long kdbus_meta_attach_mask = KDBUS_ATTACH_TIMESTAMP | |
| KDBUS_ATTACH_CREDS | |
| KDBUS_ATTACH_PIDS | |
| KDBUS_ATTACH_AUXGROUPS | |
| KDBUS_ATTACH_NAMES | |
| KDBUS_ATTACH_SECLABEL | |
| KDBUS_ATTACH_CONN_DESCRIPTION; |
| MODULE_PARM_DESC(attach_flags_mask, "Attach-flags mask for exported metadata"); |
| module_param_named(attach_flags_mask, kdbus_meta_attach_mask, ullong, 0644); |
| |
| static int __init kdbus_init(void) |
| { |
| int ret; |
| |
| kdbus_dir = kobject_create_and_add(KBUILD_MODNAME, fs_kobj); |
| if (!kdbus_dir) |
| return -ENOMEM; |
| |
| ret = kdbus_fs_init(); |
| if (ret < 0) { |
| pr_err("cannot register filesystem: %d\n", ret); |
| goto exit_dir; |
| } |
| |
| pr_info("initialized\n"); |
| return 0; |
| |
| exit_dir: |
| kobject_put(kdbus_dir); |
| return ret; |
| } |
| |
| static void __exit kdbus_exit(void) |
| { |
| kdbus_fs_exit(); |
| kobject_put(kdbus_dir); |
| } |
| |
| module_init(kdbus_init); |
| module_exit(kdbus_exit); |
| MODULE_LICENSE("GPL"); |
| MODULE_DESCRIPTION("D-Bus, powerful, easy to use interprocess communication"); |
| MODULE_ALIAS_FS(KBUILD_MODNAME "fs"); |
