* Copyright (C) 2013 Kay Sievers
* Copyright (C) 2013 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Copyright (C) 2013 Linux Foundation
+ * Copyright (C) 2013 Lennart Poettering
+ * Copyright (C) 2013 Daniel Mack <daniel@zonque.org>
*
* 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
#define KDBUS_MATCH_SRC_ID_ANY (~0ULL)
#define KDBUS_DST_ID_BROADCAST (~0ULL)
-/* Message Data Types */
+/* Message Item Types */
enum {
/* Filled in by userspace */
KDBUS_MSG_NULL, /* empty record */
KDBUS_MSG_NAME_CHANGE, /* .name_change */
KDBUS_MSG_ID_ADD, /* .id_change */
KDBUS_MSG_ID_REMOVE, /* .id_change */
- KDBUS_MSG_ID_CHANGE, /* .id_change */
KDBUS_MSG_REPLY_TIMEOUT, /* empty, but .reply_cookie in .kdbus_msg is filled in */
KDBUS_MSG_REPLY_DEAD, /* dito */
};
};
/**
- * struct kdbus_msg_data - chain of data blocks
+ * struct kdbus_msg_item - chain of data blocks
*
* size: overall data record size
- * type: kdbus_msg_data_type of data
+ * type: kdbus_msg_item type of data
*/
-struct kdbus_msg_data {
+struct kdbus_msg_item {
__u64 size;
__u64 type;
union {
* set by userspace:
* dst_id: destination id
* flags: KDBUS_MSG_FLAGS_*
- * data_size: overall message size
- * data: data records
+ * items: data records
*
* set by kernel:
* src_id: who sent the message
__u64 cookie_reply; /* cookie we reply to */
__u64 timeout_ns; /* timespan to wait for reply */
};
- struct kdbus_msg_data items[0];
+ struct kdbus_msg_item items[0];
};
enum {
KDBUS_POLICY_OPEN = 4,
};
+/* Items to append to kdbus_cmd_bus_make, kdbus_cmd_ep_make and
+ * kdbus_cmd_ns_make */
+
+enum {
+ KDBUS_CMD_MAKE_NONE,
+ KDBUS_CMD_MAKE_NAME,
+ KDBUS_CMD_MAKE_CGROUP, /* the cgroup hierarchy ID for which to attach
+ * cgroup membership paths * to messages. */
+ KDBUS_CMD_MAKE_CRED, /* allow translator services which connect
+ * to the bus on behalf of somebody else,
+ * allow specifiying the credentials of the
+ * client to connect on behalf on. Needs
+ * privileges */
+
+};
+
+struct kdbus_cmd_make_item {
+ __u64 size;
+ __u64 type;
+ union {
+ __u8 data[0];
+ __u64 data64[0];
+ char str[0];
+ };
+};
+
struct kdbus_cmd_hello {
+ __u64 size;
+
/* userspace → kernel, kernel → userspace */
__u64 conn_flags; /* userspace specifies its
* capabilities and more, kernel
* capabilities by returning an error
* from KDBUS_CMD_HELLO */
- /* userspace → kernel */
- __u64 pid; /* To allow translator services which
- * connect to the bus on behalf of
- * somebody else, allow specifiying
- * the PID of the client to connect on
- * behalf on. Normal clients should
- * pass this as 0 (i.e. to do things
- * under their own PID). Priviliged
- * clients can pass != 0, to operate
- * on behalf of somebody else. */
-
/* kernel → userspace */
__u64 bus_flags; /* this is .flags copied verbatim from
* from original KDBUS_CMD_BUS_MAKE
* ioctl. It's intended to be useful
* to do negotiation of features of
* the payload that is transfreted. */
- __u64 id; /* peer id */
+ __u64 id; /* id assigned to this connection */
__u64 bloom_size; /* The bloom filter size chosen by the
* bus owner */
+ struct kdbus_cmd_make_item items[0];
};
struct kdbus_cmd_bus_make {
* copied verbatim into the bus
* structure and returned from
* KDBUS_CMD_HELLO, later */
- __u64 cgroup_id; /* the cgroup hierarchy ID for which
- * to attach cgroup membership paths
- * to messages. 0 if no cgroup data
- * shall be attached. */
- __u64 bloom_size; /* Size of the bloom filter for this bus. */
- char name[0];
+ __u64 bloom_size; /* size of the bloom filter for this bus */
+ struct kdbus_cmd_make_item items[0];
+
};
struct kdbus_cmd_ep_make {
* same way as for
* KDBUS_CMD_BUS_MAKE. Unused for
* now. */
- char name[0];
+ struct kdbus_cmd_make_item items[0];
};
struct kdbus_cmd_ns_make {
* same way as for
* KDBUS_CMD_BUS_MAKE. Unused for
* now. */
- char name[0];
+ struct kdbus_cmd_make_item items[0];
};
enum {
};
enum {
- KDBUS_CMD_NAME_INFO_ITEM_NAME,
- KDBUS_CMD_NAME_INFO_ITEM_SECLABEL,
- KDBUS_CMD_NAME_INFO_ITEM_AUDIT,
+ KDBUS_CMD_NAME_INFO_ITEM_NAME, /* userspace → kernel */
+ KDBUS_CMD_NAME_INFO_ITEM_SECLABEL, /* kernel → userspace */
+ KDBUS_CMD_NAME_INFO_ITEM_AUDIT, /* kernel → userspace */
};
struct kdbus_cmd_name_info_item {
__u64 size;
__u64 type;
- __u8 items[0];
+ __u8 data[0];
};
struct kdbus_cmd_name_info {
__u64 flags;
__u64 id; /* either ID, or 0 and _ITEM_NAME follows */
struct kdbus_creds creds;
- struct kdbus_cmd_name_info_item item[0]; /* list of item records */
+ struct kdbus_cmd_name_info_item items[0]; /* list of item records */
};
enum {
KDBUS_CMD_MATCH_NAME_CHANGE, /* Matches a name string against KDBUS_MSG_NAME_CHANGE */
KDBUS_CMD_MATCH_ID_ADD, /* Matches an ID against KDBUS_MSG_ID_ADD */
KDBUS_CMD_MATCH_ID_REMOVE, /* Matches an ID against KDBUS_MSG_ID_REMOVE */
- KDBUS_CMD_MATCH_ID_CHANGE, /* Matches an ID against KDBUS_MSG_ID_CHANGE */
};
struct kdbus_cmd_match_item {
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