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[kdbus] sync with kdbus (kdbus.h - commit: 5ae1ecac44cb)

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This commit is contained in:
Lukasz Skalski
2014-11-21 11:44:01 +00:00
committed by Ryan Lortie
parent defb6c810a
commit 5128c34e0f
3 changed files with 274 additions and 201 deletions
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8
gio/gdbusaddress.c
View File

@@ -1567,18 +1567,18 @@ g_dbus_address_get_for_bus_sync (GBusType bus_type,
case G_BUS_TYPE_MACHINE:
system_bus = g_getenv ("DBUS_SYSTEM_BUS_ADDRESS");
if (system_bus == NULL)
ret = g_strdup ("kernel:path=/dev/kdbus/0-system/bus;unix:path=/var/run/dbus/system_bus_socket");
ret = g_strdup ("kernel:path=/sys/fs/kdbus/0-system/bus;unix:path=/var/run/dbus/system_bus_socket");
else
ret = g_strdup_printf ("kernel:path=/dev/kdbus/0-system/bus;%s", system_bus);
ret = g_strdup_printf ("kernel:path=/sys/fs/kdbus/0-system/bus;%s", system_bus);
break;
case G_BUS_TYPE_USER:
session_bus = g_getenv ("DBUS_SESSION_BUS_ADDRESS");
if (session_bus == NULL)
ret = g_strdup_printf ("kernel:path=/dev/kdbus/%d-user/bus;%s", getuid(),
ret = g_strdup_printf ("kernel:path=/sys/fs/kdbus/%d-user/bus;%s", getuid(),
get_session_address_platform_specific (&local_error));
else
ret = g_strdup_printf ("kernel:path=/dev/kdbus/%d-user/bus;%s", getuid(), session_bus);
ret = g_strdup_printf ("kernel:path=/sys/fs/kdbus/%d-user/bus;%s", getuid(), session_bus);
break;
case G_BUS_TYPE_STARTER:

43
gio/gkdbus.c
View File

@@ -89,8 +89,9 @@ struct _GKdbusPrivate
gchar *unique_name;
guint64 unique_id;
guint64 hello_flags;
guint64 attach_flags;
guint64 flags;
guint64 attach_flags_send;
guint64 attach_flags_recv;
guint closed : 1;
guint inited : 1;
@@ -179,8 +180,9 @@ g_kdbus_init (GKdbus *kdbus)
kdbus->priv->kdbus_buffer = NULL;
kdbus->priv->hello_flags = 0; /* KDBUS_HELLO_ACCEPT_FD */
kdbus->priv->attach_flags = KDBUS_ATTACH_NAMES;
kdbus->priv->flags = 0; /* KDBUS_HELLO_ACCEPT_FD */
kdbus->priv->attach_flags_send = _KDBUS_ATTACH_ALL;
kdbus->priv->attach_flags_recv = _KDBUS_ATTACH_ALL;
}
@@ -562,14 +564,15 @@ _g_kdbus_Hello (GIOStream *stream,
KDBUS_ALIGN8 (G_STRUCT_OFFSET (struct kdbus_item, str) + conn_name_size + 1);
hello = g_alloca0 (size);
hello->conn_flags = kdbus->priv->hello_flags;
hello->attach_flags = kdbus->priv->attach_flags;
hello->flags = kdbus->priv->flags;
hello->attach_flags_send = kdbus->priv->attach_flags_send;
hello->attach_flags_recv = kdbus->priv->attach_flags_recv;
hello->size = size;
hello->pool_size = KDBUS_POOL_SIZE;
item = hello->items;
item->size = G_STRUCT_OFFSET (struct kdbus_item, str) + conn_name_size + 1;
item->type = KDBUS_ITEM_CONN_NAME;
item->type = KDBUS_ITEM_CONN_DESCRIPTION;
memcpy (item->str, conn_name, conn_name_size+1);
item = KDBUS_ITEM_NEXT (item);
@@ -820,7 +823,7 @@ _g_kdbus_GetListNames (GDBusConnection *connection,
struct kdbus_cmd_name_list cmd = {};
struct kdbus_name_list *name_list;
struct kdbus_cmd_name *name;
struct kdbus_name_info *name;
guint64 prev_id;
gint ret;
@@ -871,8 +874,8 @@ _g_kdbus_GetListNames (GDBusConnection *connection,
}
KDBUS_ITEM_FOREACH(item, name, items)
if (item->type == KDBUS_ITEM_NAME)
item_name = item->str;
if (item->type == KDBUS_ITEM_OWNED_NAME)
item_name = item->name.name;
if (g_dbus_is_name (item_name))
g_variant_builder_add (builder, "s", item_name);
@@ -895,20 +898,20 @@ g_kdbus_NameHasOwner_internal (GKdbus *kdbus,
const gchar *name,
GError **error)
{
struct kdbus_cmd_conn_info *cmd;
struct kdbus_cmd_info *cmd;
gssize size, len;
gint ret;
if (g_dbus_is_unique_name(name))
{
size = G_STRUCT_OFFSET (struct kdbus_cmd_conn_info, items);
size = G_STRUCT_OFFSET (struct kdbus_cmd_info, items);
cmd = g_alloca0 (size);
cmd->id = g_ascii_strtoull (name+3, NULL, 10);
}
else
{
len = strlen(name) + 1;
size = G_STRUCT_OFFSET (struct kdbus_cmd_conn_info, items) + KDBUS_ITEM_SIZE(len);
size = G_STRUCT_OFFSET (struct kdbus_cmd_info, items) + KDBUS_ITEM_SIZE(len);
cmd = g_alloca0 (size);
cmd->items[0].size = KDBUS_ITEM_HEADER_SIZE + len;
cmd->items[0].type = KDBUS_ITEM_NAME;
@@ -943,7 +946,7 @@ _g_kdbus_GetListQueuedOwners (GDBusConnection *connection,
struct kdbus_cmd_name_list cmd = {};
struct kdbus_name_list *name_list;
struct kdbus_cmd_name *kname;
struct kdbus_name_info *kname;
kdbus = _g_kdbus_connection_get_kdbus (G_KDBUS_CONNECTION (g_dbus_connection_get_stream (connection)));
if (kdbus == NULL)
@@ -1066,8 +1069,8 @@ g_kdbus_GetConnInfo_internal (GDBusConnection *connection,
GKdbus *kdbus;
GVariant *result;
struct kdbus_cmd_conn_info *cmd;
struct kdbus_conn_info *conn_info;
struct kdbus_cmd_info *cmd;
struct kdbus_info *conn_info;
struct kdbus_item *item;
gssize size, len;
gint ret;
@@ -1103,21 +1106,21 @@ g_kdbus_GetConnInfo_internal (GDBusConnection *connection,
if (g_dbus_is_unique_name(name))
{
size = G_STRUCT_OFFSET (struct kdbus_cmd_conn_info, items);
size = G_STRUCT_OFFSET (struct kdbus_cmd_info, items);
cmd = g_alloca0 (size);
cmd->id = g_ascii_strtoull (name+3, NULL, 10);
}
else
{
len = strlen(name) + 1;
size = G_STRUCT_OFFSET (struct kdbus_cmd_conn_info, items) + KDBUS_ITEM_SIZE(len);
size = G_STRUCT_OFFSET (struct kdbus_cmd_info, items) + KDBUS_ITEM_SIZE(len);
cmd = g_alloca0 (size);
cmd->items[0].size = KDBUS_ITEM_HEADER_SIZE + len;
cmd->items[0].type = KDBUS_ITEM_NAME;
memcpy (cmd->items[0].str, name, len);
}
cmd->flags = KDBUS_ATTACH_NAMES;
cmd->flags = _KDBUS_ATTACH_ALL;
cmd->size = size;
ret = ioctl(kdbus->priv->fd, KDBUS_CMD_CONN_INFO, cmd);
@@ -1130,7 +1133,7 @@ g_kdbus_GetConnInfo_internal (GDBusConnection *connection,
return NULL;
}
conn_info = (struct kdbus_conn_info *) ((guint8 *) kdbus->priv->kdbus_buffer + cmd->offset);
conn_info = (struct kdbus_info *) ((guint8 *) kdbus->priv->kdbus_buffer + cmd->offset);
/*
if (conn_info->flags & KDBUS_HELLO_ACTIVATOR)

346
gio/kdbus.h
View File

@@ -1,18 +1,8 @@
/*
* Copyright (C) 2013-2014 Kay Sievers
* Copyright (C) 2013-2014 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Copyright (C) 2013-2014 Linux Foundation
* Copyright (C) 2013-2014 Lennart Poettering
* Copyright (C) 2013-2014 Daniel Mack <daniel@zonque.org>
* Copyright (C) 2013-2014 David Herrmann <dh.herrmann@gmail.com>
*
* 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.
*
* "Everything should be made as simple as possible, but not simpler."
* -- Albert Einstein
*/
#ifndef _KDBUS_UAPI_H_
@@ -89,6 +79,21 @@ struct kdbus_creds {
__u64 starttime;
};
/**
* struct kdbus_caps - process capabilities
* @last_cap: Highest currently known capability bit
* @caps: Variable number of 32-bit capabilities flags
*
* Contains a variable number of 32-bit capabilities flags.
*
* Attached to:
* KDBUS_ITEM_CAPS
*/
struct kdbus_caps {
__u32 last_cap;
__u32 caps[0];
};
/**
* struct kdbus_audit - audit information
* @sessionid: The audit session ID
@@ -176,7 +181,7 @@ struct kdbus_memfd {
* @name: Well-known name
*
* Attached to:
* KDBUS_ITEM_NAME
* KDBUS_ITEM_OWNED_NAME
*/
struct kdbus_name {
__u64 flags;
@@ -207,38 +212,45 @@ struct kdbus_policy_access {
* @KDBUS_ITEM_BLOOM_PARAMETER: Bus-wide bloom parameters, used with
* KDBUS_CMD_BUS_MAKE, carries a
* struct kdbus_bloom_parameter
* @KDBUS_ITEM_BLOOM_FILTER: Bloom filter carried with a message, used to
* match against a bloom mask of a connection,
* carries a struct kdbus_bloom_filter
* @KDBUS_ITEM_BLOOM_MASK: Bloom mask used to match against a message's
* bloom filter
* @KDBUS_ITEM_BLOOM_FILTER: Bloom filter carried with a message,
* used to match against a bloom mask of a
* connection, carries a struct
* kdbus_bloom_filter
* @KDBUS_ITEM_BLOOM_MASK: Bloom mask used to match against a
* message'sbloom filter
* @KDBUS_ITEM_DST_NAME: Destination's well-known name
* @KDBUS_ITEM_MAKE_NAME: Name of domain, bus, endpoint
* @KDBUS_ITEM_ATTACH_FLAGS: Attach-flags, used for updating which metadata
* a connection subscribes to
* @_KDBUS_ITEM_ATTACH_BASE: Start of metadata attach items
* @KDBUS_ITEM_NAME: Well-know name with flags
* @KDBUS_ITEM_ATTACH_FLAGS_SEND: Attach-flags, used for updating which
* metadata a connection opts in to send
* @KDBUS_ITEM_ATTACH_FLAGS_RECV: Attach-flags, used for updating which
* metadata a connection requests to
* receive for each reeceived message
* @KDBUS_ITEM_ID: Connection ID
* @KDBUS_ITEM_NAME: Well-know name with flags
* @_KDBUS_ITEM_ATTACH_BASE: Start of metadata attach items
* @KDBUS_ITEM_TIMESTAMP: Timestamp
* @KDBUS_ITEM_CREDS: Process credential
* @KDBUS_ITEM_AUXGROUPS: Auxiliary process groups
* @KDBUS_ITEM_PID_COMM: Process ID "comm" identifier
* @KDBUS_ITEM_OWNED_NAME: A name owned by the associated
* connection
* @KDBUS_ITEM_TID_COMM: Thread ID "comm" identifier
* @KDBUS_ITEM_PID_COMM: Process ID "comm" identifier
* @KDBUS_ITEM_EXE: The path of the executable
* @KDBUS_ITEM_CMDLINE: The process command line
* @KDBUS_ITEM_CGROUP: The croup membership
* @KDBUS_ITEM_CAPS: The process capabilities
* @KDBUS_ITEM_SECLABEL: The security label
* @KDBUS_ITEM_AUDIT: The audit IDs
* @KDBUS_ITEM_CONN_NAME: The connection's human-readable name (debugging)
* @KDBUS_ITEM_CONN_DESCRIPTION: The connection's human-readable name
* (debugging)
* @_KDBUS_ITEM_POLICY_BASE: Start of policy items
* @KDBUS_ITEM_POLICY_ACCESS: Policy access block
* @_KDBUS_ITEM_KERNEL_BASE: Start of kernel-generated message items
* @KDBUS_ITEM_NAME_ADD: Notify in struct kdbus_notify_name_change
* @KDBUS_ITEM_NAME_REMOVE: Notify in struct kdbus_notify_name_change
* @KDBUS_ITEM_NAME_CHANGE: Notify in struct kdbus_notify_name_change
* @KDBUS_ITEM_ID_ADD: Notify in struct kdbus_notify_id_change
* @KDBUS_ITEM_ID_REMOVE: Notify in struct kdbus_notify_id_change
* @KDBUS_ITEM_NAME_ADD: Notification in kdbus_notify_name_change
* @KDBUS_ITEM_NAME_REMOVE: Notification in kdbus_notify_name_change
* @KDBUS_ITEM_NAME_CHANGE: Notification in kdbus_notify_name_change
* @KDBUS_ITEM_ID_ADD: Notification in kdbus_notify_id_change
* @KDBUS_ITEM_ID_REMOVE: Notification in kdbus_notify_id_change
* @KDBUS_ITEM_REPLY_TIMEOUT: Timeout has been reached
* @KDBUS_ITEM_REPLY_DEAD: Destination died
*/
@@ -254,23 +266,26 @@ enum kdbus_item_type {
KDBUS_ITEM_BLOOM_MASK,
KDBUS_ITEM_DST_NAME,
KDBUS_ITEM_MAKE_NAME,
KDBUS_ITEM_ATTACH_FLAGS,
_KDBUS_ITEM_ATTACH_BASE = 0x1000,
KDBUS_ITEM_NAME = _KDBUS_ITEM_ATTACH_BASE,
KDBUS_ITEM_ATTACH_FLAGS_SEND,
KDBUS_ITEM_ATTACH_FLAGS_RECV,
KDBUS_ITEM_ID,
KDBUS_ITEM_TIMESTAMP,
KDBUS_ITEM_NAME,
/* keep these item types in sync with KDBUS_ATTACH_* flags */
_KDBUS_ITEM_ATTACH_BASE = 0x1000,
KDBUS_ITEM_TIMESTAMP = _KDBUS_ITEM_ATTACH_BASE,
KDBUS_ITEM_CREDS,
KDBUS_ITEM_AUXGROUPS,
KDBUS_ITEM_PID_COMM,
KDBUS_ITEM_OWNED_NAME,
KDBUS_ITEM_TID_COMM,
KDBUS_ITEM_PID_COMM,
KDBUS_ITEM_EXE,
KDBUS_ITEM_CMDLINE,
KDBUS_ITEM_CGROUP,
KDBUS_ITEM_CAPS,
KDBUS_ITEM_SECLABEL,
KDBUS_ITEM_AUDIT,
KDBUS_ITEM_CONN_NAME,
KDBUS_ITEM_CONN_DESCRIPTION,
_KDBUS_ITEM_POLICY_BASE = 0x2000,
KDBUS_ITEM_POLICY_ACCESS = _KDBUS_ITEM_POLICY_BASE,
@@ -322,6 +337,7 @@ struct kdbus_item {
struct kdbus_vec vec;
struct kdbus_creds creds;
struct kdbus_audit audit;
struct kdbus_caps caps;
struct kdbus_timestamp timestamp;
struct kdbus_name name;
struct kdbus_bloom_parameter bloom_parameter;
@@ -373,7 +389,8 @@ enum kdbus_payload_type {
/**
* struct kdbus_msg - the representation of a kdbus message
* @size: Total size of the message
* @flags: Message flags (KDBUS_MSG_FLAGS_*)
* @flags: Message flags (KDBUS_MSG_FLAGS_*), userspace → kernel
* @kernel_flags: Supported message flags, kernel → userspace
* @priority: Message queue priority value
* @dst_id: 64-bit ID of the destination connection
* @src_id: 64-bit ID of the source connection
@@ -383,7 +400,8 @@ enum kdbus_payload_type {
* @timeout_ns: The time to wait for a message reply from the peer.
* If there is no reply, a kernel-generated message
* with an attached KDBUS_ITEM_REPLY_TIMEOUT item
* is sent to @src_id.
* is sent to @src_id. The timeout is expected in
* nanoseconds and as absolute CLOCK_MONOTONIC value.
* @cookie_reply: A reply to the requesting message with the same
* cookie. The requesting connection can match its
* request and the reply with this value
@@ -395,6 +413,7 @@ enum kdbus_payload_type {
struct kdbus_msg {
__u64 size;
__u64 flags;
__u64 kernel_flags;
__s64 priority;
__u64 dst_id;
__u64 src_id;
@@ -429,25 +448,34 @@ enum kdbus_recv_flags {
/**
* struct kdbus_cmd_recv - struct to de-queue a buffered message
* @flags: KDBUS_RECV_* flags
* @flags: KDBUS_RECV_* flags, userspace → kernel
* @kernel_flags: Supported KDBUS_RECV_* flags, kernel → userspace
* @priority: Minimum priority of the messages to de-queue. Lowest
* values have the highest priority.
* @offset: Returned offset in the pool where the message is
* stored. The user must use KDBUS_CMD_FREE to free
* the allocated memory.
* @dropped_msgs: In case the KDBUS_CMD_MSG_RECV ioctl returns
* -EOVERFLOW, this field will contain the number of
* broadcast messages that have been lost since the
* last call.
*
* This struct is used with the KDBUS_CMD_MSG_RECV ioctl.
*/
struct kdbus_cmd_recv {
__u64 flags;
__u64 kernel_flags;
__s64 priority;
union {
__u64 offset;
__u64 dropped_msgs;
};
} __attribute__((aligned(8)));
/**
* struct kdbus_cmd_cancel - struct to cancel a synchronously pending message
* @cookie The cookie of the pending message
* @flags Flags for the free command. Currently unused.
* @cookie: The cookie of the pending message
* @flags: Flags for the free command. Currently unused.
*
* This struct is used with the KDBUS_CMD_CANCEL ioctl.
*/
@@ -458,15 +486,17 @@ struct kdbus_cmd_cancel {
/**
* struct kdbus_cmd_free - struct to free a slice of memory in the pool
* @offset The offset of the memory slice, as returned by other
* @offset: The offset of the memory slice, as returned by other
* ioctls
* @flags Flags for the free command. Currently unused.
* @flags: Flags for the free command, userspace → kernel
* @kernel_flags: Supported flags of the free command, userspace → kernel
*
* This struct is used with the KDBUS_CMD_FREE ioctl.
*/
struct kdbus_cmd_free {
__u64 offset;
__u64 flags;
__u64 kernel_flags;
} __attribute__((aligned(8)));
/**
@@ -526,38 +556,46 @@ enum kdbus_hello_flags {
* @KDBUS_ATTACH_CREDS: Credentials
* @KDBUS_ATTACH_AUXGROUPS: Auxiliary groups
* @KDBUS_ATTACH_NAMES: Well-known names
* @KDBUS_ATTACH_COMM: The "comm" process identifier
* @KDBUS_ATTACH_TID_COMM: The "comm" process identifier of the TID
* @KDBUS_ATTACH_PID_COMM: The "comm" process identifier of the PID
* @KDBUS_ATTACH_EXE: The path of the executable
* @KDBUS_ATTACH_CMDLINE: The process command line
* @KDBUS_ATTACH_CGROUP: The croup membership
* @KDBUS_ATTACH_CAPS: The process capabilities
* @KDBUS_ATTACH_SECLABEL: The security label
* @KDBUS_ATTACH_AUDIT: The audit IDs
* @KDBUS_ATTACH_CONN_NAME: The human-readable connection name
* @KDBUS_ATTACH_CONN_DESCRIPTION: The human-readable connection name
* @_KDBUS_ATTACH_ALL: All of the above
* @_KDBUS_ATTACH_ANY: Wildcard match to enable any kind of
* metatdata.
*/
enum kdbus_attach_flags {
KDBUS_ATTACH_TIMESTAMP = 1ULL << 0,
KDBUS_ATTACH_CREDS = 1ULL << 1,
KDBUS_ATTACH_AUXGROUPS = 1ULL << 2,
KDBUS_ATTACH_NAMES = 1ULL << 3,
KDBUS_ATTACH_COMM = 1ULL << 4,
KDBUS_ATTACH_EXE = 1ULL << 5,
KDBUS_ATTACH_CMDLINE = 1ULL << 6,
KDBUS_ATTACH_CGROUP = 1ULL << 7,
KDBUS_ATTACH_CAPS = 1ULL << 8,
KDBUS_ATTACH_SECLABEL = 1ULL << 9,
KDBUS_ATTACH_AUDIT = 1ULL << 10,
KDBUS_ATTACH_CONN_NAME = 1ULL << 11,
_KDBUS_ATTACH_ALL = (1ULL << 12) - 1,
KDBUS_ATTACH_TID_COMM = 1ULL << 4,
KDBUS_ATTACH_PID_COMM = 1ULL << 5,
KDBUS_ATTACH_EXE = 1ULL << 6,
KDBUS_ATTACH_CMDLINE = 1ULL << 7,
KDBUS_ATTACH_CGROUP = 1ULL << 8,
KDBUS_ATTACH_CAPS = 1ULL << 9,
KDBUS_ATTACH_SECLABEL = 1ULL << 10,
KDBUS_ATTACH_AUDIT = 1ULL << 11,
KDBUS_ATTACH_CONN_DESCRIPTION = 1ULL << 12,
_KDBUS_ATTACH_ALL = (1ULL << 13) - 1,
_KDBUS_ATTACH_ANY = ~0ULL
};
/**
* struct kdbus_cmd_hello - struct to say hello to kdbus
* @size: The total size of the structure
* @conn_flags: Connection flags (KDBUS_HELLO_*).
* @attach_flags: Mask of metadata to attach to each message sent
* (KDBUS_ATTACH_*)
* @flags: Connection flags (KDBUS_HELLO_*), userspace → kernel
* @kernel_flags: Supported connection flags, kernel → userspace
* @attach_flags_send: Mask of metadata to attach to each message sent
* off by this connection (KDBUS_ATTACH_*)
* @attach_flags_recv: Mask of metadata to attach to each message receieved
* by the new connection (KDBUS_ATTACH_*)
* @bus_flags: The flags field copied verbatim from the original
* KDBUS_CMD_BUS_MAKE ioctl. It's intended to be useful
* to do negotiation of features of the payload that is
@@ -574,8 +612,10 @@ enum kdbus_attach_flags {
*/
struct kdbus_cmd_hello {
__u64 size;
__u64 conn_flags;
__u64 attach_flags;
__u64 flags;
__u64 kernel_flags;
__u64 attach_flags_send;
__u64 attach_flags_recv;
__u64 bus_flags;
__u64 id;
__u64 pool_size;
@@ -586,8 +626,8 @@ struct kdbus_cmd_hello {
/**
* enum kdbus_make_flags - Flags for KDBUS_CMD_{BUS,EP,NS}_MAKE
* @KDBUS_MAKE_ACCESS_GROUP: Make the device node group-accessible
* @KDBUS_MAKE_ACCESS_WORLD: Make the device node world-accessible
* @KDBUS_MAKE_ACCESS_GROUP: Make the bus or endpoint node group-accessible
* @KDBUS_MAKE_ACCESS_WORLD: Make the bus or endpoint node world-accessible
*/
enum kdbus_make_flags {
KDBUS_MAKE_ACCESS_GROUP = 1ULL << 0,
@@ -597,15 +637,18 @@ enum kdbus_make_flags {
/**
* struct kdbus_cmd_make - struct to make a bus, an endpoint or a domain
* @size: The total size of the struct
* @flags: Properties for the bus/ep/domain to create
* @flags: Properties for the bus/ep/domain to create,
* userspace → kernel
* @kernel_flags: Supported flags for the used command, kernel → userspace
* @items: Items describing details
*
* This structure is used with the KDBUS_CMD_BUS_MAKE, KDBUS_CMD_ENDPOINT_MAKE
* and KDBUS_CMD_DOMAIN_MAKE ioctls.
* This structure is used with the KDBUS_CMD_BUS_MAKE and
* KDBUS_CMD_ENDPOINT_MAKE ioctls.
*/
struct kdbus_cmd_make {
__u64 size;
__u64 flags;
__u64 kernel_flags;
struct kdbus_item items[0];
} __attribute__((aligned(8)));
@@ -628,9 +671,9 @@ enum kdbus_name_flags {
/**
* struct kdbus_cmd_name - struct to describe a well-known name
* @size: The total size of the struct
* @flags: Flags for a name entry (KDBUS_NAME_*)
* @owner_id: The current owner of the name
* @conn_flags: The flags of the owning connection (KDBUS_HELLO_*)
* @flags: Flags for a name entry (KDBUS_NAME_*),
* userspace → kernel, kernel → userspace
* @kernel_flags: Supported flags for a name entry, kernel → userspace
* @items: Item list, containing the well-known name as
* KDBUS_ITEM_NAME
*
@@ -639,8 +682,24 @@ enum kdbus_name_flags {
struct kdbus_cmd_name {
__u64 size;
__u64 flags;
__u64 owner_id;
__u64 kernel_flags;
struct kdbus_item items[0];
} __attribute__((aligned(8)));
/**
* struct kdbus_name_info - struct to describe a well-known name
* @size: The total size of the struct
* @conn_flags: The flags of the owning connection (KDBUS_HELLO_*)
* @owner_id: The current owner of the name
* @items: Item list, containing the well-known name as
* KDBUS_ITEM_OWNED_NAME
*
* This structure is used as return struct for the KDBUS_CMD_NAME_LIST ioctl.
*/
struct kdbus_name_info {
__u64 size;
__u64 conn_flags;
__u64 owner_id;
struct kdbus_item items[0];
} __attribute__((aligned(8)));
@@ -660,7 +719,9 @@ enum kdbus_name_list_flags {
/**
* struct kdbus_cmd_name_list - request a list of name entries
* @flags: Flags for the query (KDBUS_NAME_LIST_*)
* @flags: Flags for the query (KDBUS_NAME_LIST_*),
* userspace → kernel
* @kernel_flags: Supported flags for queries, kernel → userspace
* @offset: The returned offset in the caller's pool buffer.
* The user must use KDBUS_CMD_FREE to free the
* allocated memory.
@@ -669,6 +730,7 @@ enum kdbus_name_list_flags {
*/
struct kdbus_cmd_name_list {
__u64 flags;
__u64 kernel_flags;
__u64 offset;
} __attribute__((aligned(8)));
@@ -682,45 +744,48 @@ struct kdbus_cmd_name_list {
*/
struct kdbus_name_list {
__u64 size;
struct kdbus_cmd_name names[0];
struct kdbus_name_info names[0];
};
/**
* struct kdbus_cmd_conn_info - struct used for KDBUS_CMD_CONN_INFO ioctl
* struct kdbus_cmd_info - struct used for KDBUS_CMD_CONN_INFO ioctl
* @size: The total size of the struct
* @flags: KDBUS_ATTACH_* flags
* @flags: KDBUS_ATTACH_* flags, userspace → kernel
* @kernel_flags: Supported KDBUS_ATTACH_* flags, kernel → userspace
* @id: The 64-bit ID of the connection. If set to zero, passing
* @name is required. kdbus will look up the name to
* determine the ID in this case.
* @offset: Returned offset in the caller's pool buffer where the
* kdbus_conn_info struct result is stored. The user must
* kdbus_info struct result is stored. The user must
* use KDBUS_CMD_FREE to free the allocated memory.
* @name: The optional well-known name to look up. Only needed in
* case @id is zero.
* @items: The optional item list, containing the
* well-known name to look up as a KDBUS_ITEM_NAME.
* Only needed in case @id is zero.
*
* On success, the KDBUS_CMD_CONN_INFO ioctl will return 0 and @offset will
* tell the user the offset in the connection pool buffer at which to find the
* result in a struct kdbus_conn_info.
* result in a struct kdbus_info.
*/
struct kdbus_cmd_conn_info {
struct kdbus_cmd_info {
__u64 size;
__u64 flags;
__u64 kernel_flags;
__u64 id;
__u64 offset;
struct kdbus_item items[0];
} __attribute__((aligned(8)));
/**
* struct kdbus_conn_info - information returned by KDBUS_CMD_CONN_INFO
* struct kdbus_info - information returned by KDBUS_CMD_*_INFO
* @size: The total size of the struct
* @id: The connection's 64-bit ID
* @flags: The connection's flags
* @id: The connection's or bus' 64-bit ID
* @flags: The connection's or bus' flags
* @items: A list of struct kdbus_item
*
* Note that the user is responsible for freeing the allocated memory with
* the KDBUS_CMD_FREE ioctl.
*/
struct kdbus_conn_info {
struct kdbus_info {
__u64 size;
__u64 id;
__u64 flags;
@@ -730,6 +795,8 @@ struct kdbus_conn_info {
/**
* struct kdbus_cmd_update - update flags of a connection
* @size: The total size of the struct
* @flags: Flags for the update command, userspace → kernel
* @kernel_flags: Supported flags for this command, kernel → userspace
* @items: A list of struct kdbus_item
*
* This struct is used with the KDBUS_CMD_CONN_UPDATE ioctl.
@@ -737,6 +804,7 @@ struct kdbus_conn_info {
struct kdbus_cmd_update {
__u64 size;
__u64 flags;
__u64 kernel_flags;
struct kdbus_item items[0];
} __attribute__((aligned(8)));
@@ -755,109 +823,111 @@ enum kdbus_cmd_match_flags {
* @size: The total size of the struct
* @cookie: Userspace supplied cookie. When removing, the cookie
* identifies the match to remove
* @flags: Flags for match command (KDBUS_MATCH_*),
* userspace → kernel
* @kernel_flags: Supported flags of the used command, kernel → userspace
* @items: A list of items for additional information
*
* This structure is used with the KDBUS_CMD_ADD_MATCH and
* KDBUS_CMD_REMOVE_MATCH ioctl.
* This structure is used with the KDBUS_CMD_MATCH_ADD and
* KDBUS_CMD_MATCH_REMOVE ioctl.
*/
struct kdbus_cmd_match {
__u64 size;
__u64 cookie;
__u64 flags;
__u64 kernel_flags;
struct kdbus_item items[0];
} __attribute__((aligned(8)));
/**
* enum kdbus_ioctl_type - Ioctl API
* @KDBUS_CMD_BUS_MAKE: After opening the "control" device node, this
* command creates a new bus with the specified
* Ioctl API
* KDBUS_CMD_BUS_MAKE: After opening the "control" node, this command
* creates a new bus with the specified
* name. The bus is immediately shut down and
* cleaned up when the opened "control" device node
* is closed.
* @KDBUS_CMD_DOMAIN_MAKE: Similar to KDBUS_CMD_BUS_MAKE, but it creates a
* new kdbus domain.
* @KDBUS_CMD_ENDPOINT_MAKE: Creates a new named special endpoint to talk to
* cleaned up when the opened file descriptor is
* closed.
* KDBUS_CMD_ENDPOINT_MAKE: Creates a new named special endpoint to talk to
* the bus. Such endpoints usually carry a more
* restrictive policy and grant restricted access
* to specific applications.
* @KDBUS_CMD_HELLO: By opening the bus device node a connection is
* KDBUS_CMD_HELLO: By opening the bus node, a connection is
* created. After a HELLO the opened connection
* becomes an active peer on the bus.
* @KDBUS_CMD_BYEBYE: Disconnect a connection. If there are no
* KDBUS_CMD_BYEBYE: Disconnect a connection. If there are no
* messages queued up in the connection's pool,
* the call succeeds, and the handle is rendered
* unusable. Otherwise, -EBUSY is returned without
* any further side-effects.
* @KDBUS_CMD_MSG_SEND: Send a message and pass data from userspace to
* KDBUS_CMD_MSG_SEND: Send a message and pass data from userspace to
* the kernel.
* @KDBUS_CMD_MSG_RECV: Receive a message from the kernel which is
* KDBUS_CMD_MSG_RECV: Receive a message from the kernel which is
* placed in the receiver's pool.
* @KDBUS_CMD_MSG_CANCEL: Cancel a pending request of a message that
* KDBUS_CMD_MSG_CANCEL: Cancel a pending request of a message that
* blocks while waiting for a reply. The parameter
* denotes the cookie of the message in flight.
* @KDBUS_CMD_FREE: Release the allocated memory in the receiver's
* KDBUS_CMD_FREE: Release the allocated memory in the receiver's
* pool.
* @KDBUS_CMD_NAME_ACQUIRE: Request a well-known bus name to associate with
* KDBUS_CMD_NAME_ACQUIRE: Request a well-known bus name to associate with
* the connection. Well-known names are used to
* address a peer on the bus.
* @KDBUS_CMD_NAME_RELEASE: Release a well-known name the connection
* KDBUS_CMD_NAME_RELEASE: Release a well-known name the connection
* currently owns.
* @KDBUS_CMD_NAME_LIST: Retrieve the list of all currently registered
* KDBUS_CMD_NAME_LIST: Retrieve the list of all currently registered
* well-known and unique names.
* @KDBUS_CMD_CONN_INFO: Retrieve credentials and properties of the
* KDBUS_CMD_CONN_INFO: Retrieve credentials and properties of the
* initial creator of the connection. The data was
* stored at registration time and does not
* necessarily represent the connected process or
* the actual state of the process.
* @KDBUS_CMD_CONN_UPDATE: Update the properties of a connection. Used to
* KDBUS_CMD_CONN_UPDATE: Update the properties of a connection. Used to
* update the metadata subscription mask and
* policy.
* @KDBUS_CMD_ENDPOINT_UPDATE: Update the properties of a custom enpoint. Used
* KDBUS_CMD_BUS_CREATOR_INFO: Retrieve information of the creator of the bus
* a connection is attached to.
* KDBUS_CMD_ENDPOINT_UPDATE: Update the properties of a custom enpoint. Used
* to update the policy.
* @KDBUS_CMD_MATCH_ADD: Install a match which broadcast messages should
* KDBUS_CMD_MATCH_ADD: Install a match which broadcast messages should
* be delivered to the connection.
* @KDBUS_CMD_MATCH_REMOVE: Remove a current match for broadcast messages.
* KDBUS_CMD_MATCH_REMOVE: Remove a current match for broadcast messages.
*/
enum kdbus_ioctl_type {
KDBUS_CMD_BUS_MAKE = _IOW(KDBUS_IOCTL_MAGIC, 0x00,
struct kdbus_cmd_make),
KDBUS_CMD_DOMAIN_MAKE = _IOW(KDBUS_IOCTL_MAGIC, 0x10,
struct kdbus_cmd_make),
KDBUS_CMD_ENDPOINT_MAKE = _IOW(KDBUS_IOCTL_MAGIC, 0x20,
struct kdbus_cmd_make),
#define KDBUS_CMD_BUS_MAKE _IOW(KDBUS_IOCTL_MAGIC, 0x00, \
struct kdbus_cmd_make)
#define KDBUS_CMD_ENDPOINT_MAKE _IOW(KDBUS_IOCTL_MAGIC, 0x10, \
struct kdbus_cmd_make)
KDBUS_CMD_HELLO = _IOWR(KDBUS_IOCTL_MAGIC, 0x30,
struct kdbus_cmd_hello),
KDBUS_CMD_BYEBYE = _IO(KDBUS_IOCTL_MAGIC, 0x31),
#define KDBUS_CMD_HELLO _IOWR(KDBUS_IOCTL_MAGIC, 0x20, \
struct kdbus_cmd_hello)
#define KDBUS_CMD_BYEBYE _IO(KDBUS_IOCTL_MAGIC, 0x21) \
KDBUS_CMD_MSG_SEND = _IOWR(KDBUS_IOCTL_MAGIC, 0x40,
struct kdbus_msg),
KDBUS_CMD_MSG_RECV = _IOWR(KDBUS_IOCTL_MAGIC, 0x41,
struct kdbus_cmd_recv),
KDBUS_CMD_MSG_CANCEL = _IOW(KDBUS_IOCTL_MAGIC, 0x42,
struct kdbus_cmd_cancel),
KDBUS_CMD_FREE = _IOW(KDBUS_IOCTL_MAGIC, 0x43,
struct kdbus_cmd_free),
#define KDBUS_CMD_MSG_SEND _IOWR(KDBUS_IOCTL_MAGIC, 0x30, \
struct kdbus_msg)
#define KDBUS_CMD_MSG_RECV _IOWR(KDBUS_IOCTL_MAGIC, 0x31, \
struct kdbus_cmd_recv)
#define KDBUS_CMD_MSG_CANCEL _IOW(KDBUS_IOCTL_MAGIC, 0x32, \
struct kdbus_cmd_cancel)
#define KDBUS_CMD_FREE _IOW(KDBUS_IOCTL_MAGIC, 0x33, \
struct kdbus_cmd_free)
KDBUS_CMD_NAME_ACQUIRE = _IOWR(KDBUS_IOCTL_MAGIC, 0x50,
struct kdbus_cmd_name),
KDBUS_CMD_NAME_RELEASE = _IOW(KDBUS_IOCTL_MAGIC, 0x51,
struct kdbus_cmd_name),
KDBUS_CMD_NAME_LIST = _IOWR(KDBUS_IOCTL_MAGIC, 0x52,
struct kdbus_cmd_name_list),
#define KDBUS_CMD_NAME_ACQUIRE _IOWR(KDBUS_IOCTL_MAGIC, 0x40, \
struct kdbus_cmd_name)
#define KDBUS_CMD_NAME_RELEASE _IOW(KDBUS_IOCTL_MAGIC, 0x41, \
struct kdbus_cmd_name)
#define KDBUS_CMD_NAME_LIST _IOWR(KDBUS_IOCTL_MAGIC, 0x42, \
struct kdbus_cmd_name_list)
KDBUS_CMD_CONN_INFO = _IOWR(KDBUS_IOCTL_MAGIC, 0x60,
struct kdbus_cmd_conn_info),
KDBUS_CMD_CONN_UPDATE = _IOW(KDBUS_IOCTL_MAGIC, 0x61,
struct kdbus_cmd_update),
#define KDBUS_CMD_CONN_INFO _IOWR(KDBUS_IOCTL_MAGIC, 0x50, \
struct kdbus_cmd_info)
#define KDBUS_CMD_CONN_UPDATE _IOW(KDBUS_IOCTL_MAGIC, 0x51, \
struct kdbus_cmd_update)
#define KDBUS_CMD_BUS_CREATOR_INFO _IOWR(KDBUS_IOCTL_MAGIC, 0x52, \
struct kdbus_cmd_info)
KDBUS_CMD_ENDPOINT_UPDATE = _IOW(KDBUS_IOCTL_MAGIC, 0x71,
struct kdbus_cmd_update),
#define KDBUS_CMD_ENDPOINT_UPDATE _IOW(KDBUS_IOCTL_MAGIC, 0x61, \
struct kdbus_cmd_update)
KDBUS_CMD_MATCH_ADD = _IOW(KDBUS_IOCTL_MAGIC, 0x80,
struct kdbus_cmd_match),
KDBUS_CMD_MATCH_REMOVE = _IOW(KDBUS_IOCTL_MAGIC, 0x81,
struct kdbus_cmd_match),
};
#define KDBUS_CMD_MATCH_ADD _IOW(KDBUS_IOCTL_MAGIC, 0x70, \
struct kdbus_cmd_match)
#define KDBUS_CMD_MATCH_REMOVE _IOW(KDBUS_IOCTL_MAGIC, 0x71, \
struct kdbus_cmd_match)
#endif /* _KDBUS_UAPI_H_ */