#include <linux/types.h>
#endif
-#define KDBUS_IOC_MAGIC 0x95
+#define KDBUS_IOCTL_MAGIC 0x95
#define KDBUS_SRC_ID_KERNEL (0)
#define KDBUS_DST_ID_NAME (0)
#define KDBUS_MATCH_ID_ANY (~0ULL)
* @KDBUS_ITEM_ID: Connection ID
* @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_TID_COMM: Thread ID "comm" identifier
* @KDBUS_ITEM_EXE: The path of the executable
KDBUS_ITEM_ID,
KDBUS_ITEM_TIMESTAMP,
KDBUS_ITEM_CREDS,
+ KDBUS_ITEM_AUXGROUPS,
KDBUS_ITEM_PID_COMM,
KDBUS_ITEM_TID_COMM,
KDBUS_ITEM_EXE,
* respective reply carries the cookie
* in cookie_reply
* @KDBUS_MSG_FLAGS_SYNC_REPLY: Wait for destination connection to
- * reply to this message. The
- * KDBUS_CMD_MSG_SEND ioctl() will block
- * until the reply is received, and
- * offset_reply in struct kdbus_msg will
- * yield the offset in the sender's pool
- * where the reply can be found.
- * This flag is only valid if
- * @KDBUS_MSG_FLAGS_EXPECT_REPLY is set as
- * well.
+ * reply to this message. The
+ * KDBUS_CMD_MSG_SEND ioctl() will block
+ * until the reply is received, and
+ * offset_reply in struct kdbus_msg will
+ * yield the offset in the sender's pool
+ * where the reply can be found.
+ * This flag is only valid if
+ * @KDBUS_MSG_FLAGS_EXPECT_REPLY is set as
+ * well.
* @KDBUS_MSG_FLAGS_NO_AUTO_START: Do not start a service, if the addressed
* name is not currently active
*/
* @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
- * @offset_reply: If KDBUS_MSG_FLAGS_WAIT_FOR_REPLY, this field will
+ * @offset_reply: If KDBUS_MSG_FLAGS_EXPECT_REPLY, this field will
* contain the offset in the sender's pool where the
* reply is stored.
* @items: A list of kdbus_items containing the message payload
* @KDBUS_RECV_DROP: Drop and free the next queued message and all
* its resources without actually receiving it.
* @KDBUS_RECV_USE_PRIORITY: Only de-queue messages with the specified or
- * higher priority (lowest values); if not set,
- * the priority value is ignored.
+ * higher priority (lowest values); if not set,
+ * the priority value is ignored.
*/
enum kdbus_recv_flags {
KDBUS_RECV_PEEK = 1 << 0,
* @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.
+ * stored. The user must use KDBUS_CMD_FREE to free
+ * the allocated memory.
*
* This struct is used with the KDBUS_CMD_MSG_RECV ioctl.
*/
* a well-know name for a process to be started
* when traffic arrives
* @KDBUS_HELLO_POLICY_HOLDER: Special-purpose connection which registers
- * policy entries for one or multiple names. The
- * provided names are not activated, and are not
- * registered with the name database
+ * policy entries for a name. The provided name
+ * is not activated and not registered with the
+ * name database, it only allows unprivileged
+ * connections to aquire a name, talk or discover
+ * a service
* @KDBUS_HELLO_MONITOR: Special-purpose connection to monitor
* bus traffic
*/
* enum kdbus_attach_flags - flags for metadata attachments
* @KDBUS_ATTACH_TIMESTAMP: Timestamp
* @KDBUS_ATTACH_CREDS: Credentials
+ * @KDBUS_ATTACH_AUXGROUPS: Auxiliary groups
* @KDBUS_ATTACH_NAMES: Well-known names
* @KDBUS_ATTACH_COMM: The "comm" process identifier
* @KDBUS_ATTACH_EXE: The path of the executable
* @KDBUS_ATTACH_SECLABEL: The security label
* @KDBUS_ATTACH_AUDIT: The audit IDs
* @KDBUS_ATTACH_CONN_NAME: The human-readable connection name
+ * @_KDBUS_ATTACH_ALL: All of the above
*/
enum kdbus_attach_flags {
KDBUS_ATTACH_TIMESTAMP = 1 << 0,
KDBUS_ATTACH_CREDS = 1 << 1,
- KDBUS_ATTACH_NAMES = 1 << 2,
- KDBUS_ATTACH_COMM = 1 << 3,
- KDBUS_ATTACH_EXE = 1 << 4,
- KDBUS_ATTACH_CMDLINE = 1 << 5,
- KDBUS_ATTACH_CGROUP = 1 << 6,
- KDBUS_ATTACH_CAPS = 1 << 7,
- KDBUS_ATTACH_SECLABEL = 1 << 8,
- KDBUS_ATTACH_AUDIT = 1 << 9,
- KDBUS_ATTACH_CONN_NAME = 1 << 10,
- _KDBUS_ATTACH_ALL = (1 << 11) - 1,
+ KDBUS_ATTACH_AUXGROUPS = 1 << 2,
+ KDBUS_ATTACH_NAMES = 1 << 3,
+ KDBUS_ATTACH_COMM = 1 << 4,
+ KDBUS_ATTACH_EXE = 1 << 5,
+ KDBUS_ATTACH_CMDLINE = 1 << 6,
+ KDBUS_ATTACH_CGROUP = 1 << 7,
+ KDBUS_ATTACH_CAPS = 1 << 8,
+ KDBUS_ATTACH_SECLABEL = 1 << 9,
+ KDBUS_ATTACH_AUDIT = 1 << 10,
+ KDBUS_ATTACH_CONN_NAME = 1 << 11,
+ _KDBUS_ATTACH_ALL = (1 << 12) - 1,
};
/**
* 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. For requests,
- * privileged users may set this field to
- * (de)register names on behalf of other connections.
+ * @owner_id: The current owner of the name.
* @conn_flags: The flags of the owning connection (KDBUS_HELLO_*)
* @name: The well-known name
*
/**
* struct kdbus_cmd_match - struct to add or remove matches
* @size: The total size of the struct
- * @owner_id: Privileged users may (de)register matches on behalf
- * of other peers
* @cookie: Userspace supplied cookie. When removing, the cookie
* identifies the match to remove
* @items: A list of items for additional information
*/
struct kdbus_cmd_match {
__u64 size;
- __u64 owner_id;
__u64 cookie;
struct kdbus_item items[0];
} __attribute__((aligned(8)));
* 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
+ * @KDBUS_CMD_DOMAIN_MAKE: Similar to KDBUS_CMD_BUS_MAKE, but it creates a
* new kdbus domain.
* @KDBUS_CMD_EP_MAKE: Creates a new named special endpoint to talk to
* the bus. Such endpoints usually carry a more
* @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
- * blocks while waiting for a reply. The parameter
- * denotes the cookie of the message in flight.
+ * 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
* pool.
* @KDBUS_CMD_NAME_ACQUIRE: Request a well-known bus name to associate with
* necessarily represent the connected process or
* the actual state of the process.
* @KDBUS_CMD_CONN_UPDATE: Update the properties of a connection. Used to
- * update the metadata subscription.
+ * update the metadata subscription mask and
+ * policy.
+ * @KDBUS_CMD_EP_UPDATE: Update the properties of a custom enpoint. Used
+ * to update the policy.
* @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_EP_POLICY_SET: Set the policy of an endpoint. It is used to
- * restrict the access for endpoints created with
- * KDBUS_CMD_EP_MAKE.
* @KDBUS_CMD_MEMFD_NEW: Return a new file descriptor which provides an
* anonymous shared memory file and which can be
* used to pass around larger chunks of data.
* be changed as long as the file is shared.
*/
enum kdbus_ioctl_type {
- KDBUS_CMD_BUS_MAKE = _IOW (KDBUS_IOC_MAGIC, 0x00, struct kdbus_cmd_make),
- KDBUS_CMD_DOMAIN_MAKE = _IOW (KDBUS_IOC_MAGIC, 0x10, struct kdbus_cmd_make),
- KDBUS_CMD_EP_MAKE = _IOW (KDBUS_IOC_MAGIC, 0x20, struct kdbus_cmd_make),
-
- KDBUS_CMD_HELLO = _IOWR(KDBUS_IOC_MAGIC, 0x30, struct kdbus_cmd_hello),
- KDBUS_CMD_BYEBYE = _IO (KDBUS_IOC_MAGIC, 0x31),
-
- KDBUS_CMD_MSG_SEND = _IOWR(KDBUS_IOC_MAGIC, 0x40, struct kdbus_msg),
- KDBUS_CMD_MSG_RECV = _IOWR(KDBUS_IOC_MAGIC, 0x41, struct kdbus_cmd_recv),
- KDBUS_CMD_MSG_CANCEL = _IOW (KDBUS_IOC_MAGIC, 0x42, __u64 *),
- KDBUS_CMD_FREE = _IOW (KDBUS_IOC_MAGIC, 0x43, __u64 *),
-
- KDBUS_CMD_NAME_ACQUIRE = _IOWR(KDBUS_IOC_MAGIC, 0x50, struct kdbus_cmd_name),
- KDBUS_CMD_NAME_RELEASE = _IOW (KDBUS_IOC_MAGIC, 0x51, struct kdbus_cmd_name),
- KDBUS_CMD_NAME_LIST = _IOWR(KDBUS_IOC_MAGIC, 0x52, struct kdbus_cmd_name_list),
-
- KDBUS_CMD_CONN_INFO = _IOWR(KDBUS_IOC_MAGIC, 0x60, struct kdbus_cmd_conn_info),
- KDBUS_CMD_CONN_UPDATE = _IOW (KDBUS_IOC_MAGIC, 0x61, struct kdbus_cmd_update),
-
- KDBUS_CMD_EP_UPDATE = _IOW (KDBUS_IOC_MAGIC, 0x71, struct kdbus_cmd_update),
-
- KDBUS_CMD_MATCH_ADD = _IOW (KDBUS_IOC_MAGIC, 0x80, struct kdbus_cmd_match),
- KDBUS_CMD_MATCH_REMOVE = _IOW (KDBUS_IOC_MAGIC, 0x81, struct kdbus_cmd_match),
-
- KDBUS_CMD_MEMFD_NEW = _IOWR(KDBUS_IOC_MAGIC, 0xc0, struct kdbus_cmd_memfd_make),
- KDBUS_CMD_MEMFD_SIZE_GET = _IOR (KDBUS_IOC_MAGIC, 0xc1, __u64 *),
- KDBUS_CMD_MEMFD_SIZE_SET = _IOW (KDBUS_IOC_MAGIC, 0xc2, __u64 *),
- KDBUS_CMD_MEMFD_SEAL_GET = _IOR (KDBUS_IOC_MAGIC, 0xc3, int *),
- KDBUS_CMD_MEMFD_SEAL_SET = _IO (KDBUS_IOC_MAGIC, 0xc4),
+ 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_EP_MAKE = _IOW(KDBUS_IOCTL_MAGIC, 0x20,
+ struct kdbus_cmd_make),
+
+ KDBUS_CMD_HELLO = _IOWR(KDBUS_IOCTL_MAGIC, 0x30,
+ struct kdbus_cmd_hello),
+ KDBUS_CMD_BYEBYE = _IO(KDBUS_IOCTL_MAGIC, 0x31),
+
+ 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, __u64 *),
+ KDBUS_CMD_FREE = _IOW(KDBUS_IOCTL_MAGIC, 0x43, __u64 *),
+
+ 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),
+
+ 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),
+
+ KDBUS_CMD_EP_UPDATE = _IOW(KDBUS_IOCTL_MAGIC, 0x71,
+ 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),
+
+ KDBUS_CMD_MEMFD_NEW = _IOWR(KDBUS_IOCTL_MAGIC, 0xc0,
+ struct kdbus_cmd_memfd_make),
+ KDBUS_CMD_MEMFD_SIZE_GET = _IOR(KDBUS_IOCTL_MAGIC, 0xc1, __u64 *),
+ KDBUS_CMD_MEMFD_SIZE_SET = _IOW(KDBUS_IOCTL_MAGIC, 0xc2, __u64 *),
+ KDBUS_CMD_MEMFD_SEAL_GET = _IOR(KDBUS_IOCTL_MAGIC, 0xc3, int *),
+ KDBUS_CMD_MEMFD_SEAL_SET = _IO(KDBUS_IOCTL_MAGIC, 0xc4),
};
/*
* @EEXIST: A requested domain, bus or endpoint with the same
* name already exists. A specific data type, which is
* only expected once, is provided multiple times.
- * @EFAULT: The supplied memory could not be accessed, or the data
- * is not properly aligned.
+ * @EFAULT: The supplied memory could not be accessed, the data
+ * is not properly aligned, or the current task's memory
+ * is inaccessible.
* @EINVAL: The provided data does not match its type or other
* expectations, like a string which is not NUL terminated,
* or a string length that points behind the first
* size.
* @ENOBUFS: There is no space left for the submitted data to fit
* into the receiver's pool.
- * @ENOENT: The name to query information about is currently not on
- * the bus.
+ * @ENOENT: The to be cancelled message was not found.
* @ENOMEM: Out of memory.
* @ENOMSG: The queue is not empty, but no message with a matching
- * priority is currently queued.
+ * priority is currently queued.
* @ENOSYS: The requested functionality is not available.
- * @ENOTSUPP: The feature negotiation failed, a not supported feature
- * was requested, or an unknown item type was received.
* @ENOTTY: An unknown ioctl command was received.
* @ENOTUNIQ: A specific data type was addressed to a broadcast
* address, but only direct addresses support this kind of
* data.
* @ENXIO: A unique address does not exist, or an offset in the
* receiver's pool does not represent a queued message.
+ * @EOPNOTSUPP: The feature negotiation failed, a not supported feature
+ * was requested, or an unknown item type was received.
* @EPERM: The policy prevented an operation. The requested
* resource is owned by another entity.
* @EPIPE: When sending a message, a synchronous reply from the
~ianmdlvl / elogind.git / blobdiff