#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)
/**
* struct kdbus_timestamp
- * @seqnum: Global per-namespace message sequence number
+ * @seqnum: Global per-domain message sequence number
* @monotonic_ns: Monotonic timestamp, in nanoseconds
* @realtime_ns: Realtime timestamp, in nanoseconds
*
/**
* struct kdbus_name - a registered well-known name with its flags
- * @flags: flags from KDBUS_NAME_*
- * @name: well-known name
+ * @flags: Flags from KDBUS_NAME_*
+ * @name: Well-known name
*
* Attached to:
* KDBUS_ITEM_NAME
/**
* struct kdbus_policy_access - policy access item
* @type: One of KDBUS_POLICY_ACCESS_* types
- * @bits: Access to grant. One of KDBUS_POLICY_*
+ * @access: Access to grant
* @id: For KDBUS_POLICY_ACCESS_USER, the uid
* For KDBUS_POLICY_ACCESS_GROUP, the gid
- *
- * Embedded in:
- * struct kdbus_policy
*/
struct kdbus_policy_access {
__u64 type; /* USER, GROUP, WORLD */
- __u64 bits; /* RECV, SEND, OWN */
+ __u64 access; /* OWN, TALK, SEE */
__u64 id; /* uid, gid, 0 */
};
-/**
- * struct kdbus_policy - a policy item
- * @access: Policy access details
- * @name: Well-known name to grant access to
- *
- * Attached to:
- * KDBUS_POLICY_ACCESS
- * KDBUS_ITEM_POLICY_NAME
- */
-struct kdbus_policy {
- union {
- struct kdbus_policy_access access;
- char name[0];
- };
-};
-
/**
* enum kdbus_item_type - item types to chain data in a list
* @_KDBUS_ITEM_NULL: Uninitialized/invalid
* @KDBUS_ITEM_BLOOM_MASK: Bloom mask used to match against a message's
* bloom filter
* @KDBUS_ITEM_DST_NAME: Destination's well-known name
- * @KDBUS_ITEM_MAKE_NAME: Name of namespace, bus, endpoint
+ * @KDBUS_ITEM_MAKE_NAME: Name of domain, bus, endpoint
* @KDBUS_ITEM_MEMFD_NAME: The human readable name of a memfd (debugging)
* @KDBUS_ITEM_ATTACH_FLAGS: Attach-flags, used for updating which metadata
* a connection subscribes to
* @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_AUDIT: The audit IDs
* @KDBUS_ITEM_CONN_NAME: The connection's human-readable name (debugging)
* @_KDBUS_ITEM_POLICY_BASE: Start of policy items
- * @KDBUS_ITEM_POLICY_NAME: Policy in struct kdbus_policy
- * @KDBUS_ITEM_POLICY_ACCESS: Policy in struct kdbus_policy
+ * @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_ID,
KDBUS_ITEM_TIMESTAMP,
KDBUS_ITEM_CREDS,
+ KDBUS_ITEM_AUXGROUPS,
KDBUS_ITEM_PID_COMM,
KDBUS_ITEM_TID_COMM,
KDBUS_ITEM_EXE,
KDBUS_ITEM_CONN_NAME,
_KDBUS_ITEM_POLICY_BASE = 0x2000,
- KDBUS_ITEM_POLICY_NAME = _KDBUS_ITEM_POLICY_BASE,
- KDBUS_ITEM_POLICY_ACCESS,
+ KDBUS_ITEM_POLICY_ACCESS = _KDBUS_ITEM_POLICY_BASE,
_KDBUS_ITEM_KERNEL_BASE = 0x8000,
KDBUS_ITEM_NAME_ADD = _KDBUS_ITEM_KERNEL_BASE,
* KDBUS_ITEM_NAME_CHANGE
* @id_change: KDBUS_ITEM_ID_ADD
* KDBUS_ITEM_ID_REMOVE
- * @policy: KDBUS_ITEM_POLICY_NAME
- * KDBUS_ITEM_POLICY_ACCESS
+ * @policy: KDBUS_ITEM_POLICY_ACCESS
*/
struct kdbus_item {
__u64 size;
int fds[0];
struct kdbus_notify_name_change name_change;
struct kdbus_notify_id_change id_change;
- struct kdbus_policy policy;
+ struct kdbus_policy_access policy_access;
};
};
* 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.
*/
/**
* enum kdbus_policy_access_flags - mode flags
- * @KDBUS_POLICY_RECV: Allow receive
- * @KDBUS_POLICY_SEND: Allow send
* @KDBUS_POLICY_OWN: Allow to own a well-known name
+ * Implies KDBUS_POLICY_TALK and KDBUS_POLICY_SEE
+ * @KDBUS_POLICY_TALK: Allow communication to a well-known name
+ * Implies KDBUS_POLICY_SEE
+ * @KDBUS_POLICY_SEE: Allow to see a well-known name
*/
enum kdbus_policy_type {
- KDBUS_POLICY_RECV = 1 << 2,
- KDBUS_POLICY_SEND = 1 << 1,
- KDBUS_POLICY_OWN = 1 << 0,
+ KDBUS_POLICY_SEE = 0,
+ KDBUS_POLICY_TALK,
+ KDBUS_POLICY_OWN,
};
-/**
- * struct kdbus_cmd_policy - a series of policies to upload
- * @size: The total size of the structure
- * @policies: The policies to upload
- *
- * A KDBUS_POLICY_NAME must always preceeds a KDBUS_POLICY_ACCESS entry.
- * A new KDBUS_POLICY_NAME can be added after KDBUS_POLICY_ACCESS for
- * chaining multiple policies together.
- */
-struct kdbus_cmd_policy {
- __u64 size;
- struct kdbus_item policies[0];
-} __attribute__((aligned(8)));
-
/**
* enum kdbus_hello_flags - flags for struct kdbus_cmd_hello
* @KDBUS_HELLO_ACCEPT_FD: The connection allows the receiving of
* @KDBUS_HELLO_ACTIVATOR: Special-purpose connection which registers
* 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 a name. The provided name
+ * is not activated and not registered with the
+ * name database, it only allows unprivileged
+ * connections to acquire a name, talk or discover
+ * a service
* @KDBUS_HELLO_MONITOR: Special-purpose connection to monitor
* bus traffic
*/
enum kdbus_hello_flags {
KDBUS_HELLO_ACCEPT_FD = 1 << 0,
KDBUS_HELLO_ACTIVATOR = 1 << 1,
- KDBUS_HELLO_MONITOR = 1 << 2,
+ KDBUS_HELLO_POLICY_HOLDER = 1 << 2,
+ KDBUS_HELLO_MONITOR = 1 << 3,
};
/**
* 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_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_item items[0];
} __attribute__((aligned(8)));
-/* Flags for KDBUS_CMD_{BUS,EP,NS}_MAKE */
+/**
+ * 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
+ */
enum kdbus_make_flags {
KDBUS_MAKE_ACCESS_GROUP = 1 << 0,
KDBUS_MAKE_ACCESS_WORLD = 1 << 1,
- KDBUS_MAKE_POLICY_OPEN = 1 << 2,
};
/**
- * struct kdbus_cmd_make - struct to make a bus, an endpoint or a namespace
+ * 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/ns to create
+ * @flags: Properties for the bus/ep/domain to create
* @items: Items describing details
*
* This structure is used with the KDBUS_CMD_BUS_MAKE, KDBUS_CMD_EP_MAKE and
- * KDBUS_CMD_NS_MAKE ioctls.
+ * KDBUS_CMD_DOMAIN_MAKE ioctls.
*/
struct kdbus_cmd_make {
__u64 size;
* 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_conn_update - update flags of a connection
+ * struct kdbus_cmd_update - update flags of a connection
* @size: The total size of the struct
* @items: A list of struct kdbus_item
*
* This struct is used with the KDBUS_CMD_CONN_UPDATE ioctl.
*/
-struct kdbus_cmd_conn_update {
+struct kdbus_cmd_update {
__u64 size;
struct kdbus_item items[0];
} __attribute__((aligned(8)));
/**
* 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)));
-/**
- * struct kdbus_cmd_memfd_make - create a kdbus memfd
- * @size: The total size of the struct
- * @file_size: The initial file size
- * @fd: The returned file descriptor number
- * @__pad: Padding to ensure proper alignement
- * @items: A list of items for additional information
- *
- * This structure is used with the KDBUS_CMD_MEMFD_NEW ioctl.
- */
-struct kdbus_cmd_memfd_make {
- __u64 size;
- __u64 file_size;
- int fd;
- __u32 __pad;
- 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
* name. The bus is immediately shut down and
* cleaned up when the opened "control" device node
* is closed.
- * @KDBUS_CMD_NS_MAKE: Similar to KDBUS_CMD_BUS_MAKE, but it creates a
- * new kdbus namespace.
+ * @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
* restrictive policy and grant restricted access
* @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.
- * Kdbus memfd files can be sealed, which allows
- * the receiver to trust the data it has received.
- * Kdbus memfd files expose only very limited
- * operations, they can be mmap()ed, seek()ed,
- * (p)read(v)() and (p)write(v)(); most other
- * common file operations are not implemented.
- * Special caution needs to be taken with
- * read(v)()/write(v)() on a shared file; the
- * underlying file position is always shared
- * between all users of the file and race against
- * each other, pread(v)()/pwrite(v)() avoid these
- * issues.
- * @KDBUS_CMD_MEMFD_SIZE_GET: Return the size of the underlying file, which
- * changes with write().
- * @KDBUS_CMD_MEMFD_SIZE_SET: Truncate the underlying file to the specified
- * size.
- * @KDBUS_CMD_MEMFD_SEAL_GET: Return the state of the file sealing.
- * @KDBUS_CMD_MEMFD_SEAL_SET: Seal or break a seal of the file. Only files
- * which are not shared with other processes and
- * which are currently not mapped can be sealed.
- * The current process needs to be the one and
- * single owner of the file, the sealing cannot
- * 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_NS_MAKE = _IOR (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 = _IOW (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_conn_update),
-
- KDBUS_CMD_MATCH_ADD = _IOW (KDBUS_IOC_MAGIC, 0x70, struct kdbus_cmd_match),
- KDBUS_CMD_MATCH_REMOVE = _IOW (KDBUS_IOC_MAGIC, 0x71, struct kdbus_cmd_match),
-
- KDBUS_CMD_EP_POLICY_SET = _IOW (KDBUS_IOC_MAGIC, 0x80, struct kdbus_cmd_policy),
-
- 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),
};
/*
* @EADDRNOTAVAIL: A message flagged not to activate a service, addressed
* a service which is not currently running.
* @EAGAIN: No messages are queued at the moment.
+ * @EALREADY: A requested name is already owned by the connection,
+ * a connection is already disconnected, memfd is already
+ * sealed or has the requested size.
* @EBADF: File descriptors passed with the message are not valid.
* @EBADFD: A bus connection is in a corrupted state.
* @EBADMSG: Passed data contains a combination of conflicting or
* inconsistent types.
* @EBUSY: The user tried to say BYEBYE to a connection, but the
* connection had a non-empty message list.
- * @ECANCELED: A syncronous message sending was cancelled.
+ * @ECANCELED: A synchronous message sending was cancelled.
* @ECONNRESET: A connection is shut down, no further operations are
* possible.
* @ECOMM: A peer does not accept the file descriptors addressed
* @EDESTADDRREQ: The well-known bus name is required but missing.
* @EDOM: The size of data does not match the expectations. Used
* for bloom bit field sizes.
- * @EEXIST: A requested namespace, bus or endpoint with the same
+ * @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
* receiving connection was expected but the connection
* died before answering.
- * @ESHUTDOWN: A namespace or endpoint is currently shutting down;
+ * @ESHUTDOWN: A domain, bus or endpoint is currently shutting down;
* no further operations will be possible.
* @ESRCH: A requested well-known bus name is not found.
* @ETIMEDOUT: A synchronous wait for a message reply did not arrive
~ianmdlvl / elogind.git / blobdiff