/* Message sent from kernel to userspace, when the owner or starter of
* a well-known name changes */
-struct kdbus_manager_msg_name_change {
+struct kdbus_notify_name_change {
__u64 old_id;
__u64 new_id;
__u64 flags; /* 0 or (possibly?) KDBUS_NAME_IN_QUEUE */
char name[0];
};
-struct kdbus_manager_msg_id_change {
+struct kdbus_notify_id_change {
__u64 id;
__u64 flags; /* The kernel flags field from KDBUS_HELLO */
};
/* Message Item Types */
enum {
- _KDBUS_MSG_NULL,
+ _KDBUS_ITEM_NULL,
/* Filled in by userspace */
- KDBUS_MSG_PAYLOAD_VEC, /* .data_vec, reference to memory area */
- KDBUS_MSG_PAYLOAD_OFF, /* .data_vec, reference to memory area */
- KDBUS_MSG_PAYLOAD_MEMFD, /* file descriptor of a special data file */
- KDBUS_MSG_FDS, /* .data_fds of file descriptors */
- KDBUS_MSG_BLOOM, /* for broadcasts, carries bloom filter blob in .data */
- KDBUS_MSG_DST_NAME, /* destination's well-known name, in .str */
- KDBUS_MSG_PRIORITY, /* queue priority for message */
+ KDBUS_ITEM_PAYLOAD_VEC, /* .data_vec, reference to memory area */
+ KDBUS_ITEM_PAYLOAD_OFF, /* .data_vec, reference to memory area */
+ KDBUS_ITEM_PAYLOAD_MEMFD, /* file descriptor of a special data file */
+ KDBUS_ITEM_FDS, /* .data_fds of file descriptors */
+ KDBUS_ITEM_BLOOM, /* for broadcasts, carries bloom filter blob in .data */
+ KDBUS_ITEM_DST_NAME, /* destination's well-known name, in .str */
+ KDBUS_ITEM_PRIORITY, /* queue priority for message */
/* Filled in by kernelspace */
- KDBUS_MSG_SRC_NAMES = 0x400,/* NUL separated string list with well-known names of source */
- KDBUS_MSG_TIMESTAMP, /* .timestamp */
- KDBUS_MSG_SRC_CREDS, /* .creds */
- KDBUS_MSG_SRC_PID_COMM, /* optional, in .str */
- KDBUS_MSG_SRC_TID_COMM, /* optional, in .str */
- KDBUS_MSG_SRC_EXE, /* optional, in .str */
- KDBUS_MSG_SRC_CMDLINE, /* optional, in .str (a chain of NUL str) */
- KDBUS_MSG_SRC_CGROUP, /* optional, in .str */
- KDBUS_MSG_SRC_CAPS, /* caps data blob, in .data */
- KDBUS_MSG_SRC_SECLABEL, /* NUL terminated string, in .str */
- KDBUS_MSG_SRC_AUDIT, /* .audit */
+ KDBUS_ITEM_NAMES = 0x400,/* NUL separated string list with well-known names of source */
+ KDBUS_ITEM_TIMESTAMP, /* .timestamp */
+
+ /* when appended to a message, the following items refer to the sender */
+ KDBUS_ITEM_CREDS, /* .creds */
+ KDBUS_ITEM_PID_COMM, /* optional, in .str */
+ KDBUS_ITEM_TID_COMM, /* optional, in .str */
+ KDBUS_ITEM_EXE, /* optional, in .str */
+ KDBUS_ITEM_CMDLINE, /* optional, in .str (a chain of NUL str) */
+ KDBUS_ITEM_CGROUP, /* optional, in .str */
+ KDBUS_ITEM_CAPS, /* caps data blob, in .data */
+ KDBUS_ITEM_SECLABEL, /* NUL terminated string, in .str */
+ KDBUS_ITEM_AUDIT, /* .audit */
/* Special messages from kernel, consisting of one and only one of these data blocks */
- KDBUS_MSG_NAME_ADD = 0x800,/* .name_change */
- KDBUS_MSG_NAME_REMOVE, /* .name_change */
- KDBUS_MSG_NAME_CHANGE, /* .name_change */
- KDBUS_MSG_ID_ADD, /* .id_change */
- KDBUS_MSG_ID_REMOVE, /* .id_change */
- KDBUS_MSG_REPLY_TIMEOUT, /* empty, but .reply_cookie in .kdbus_msg is filled in */
- KDBUS_MSG_REPLY_DEAD, /* dito */
+ KDBUS_ITEM_NAME_ADD = 0x800,/* .name_change */
+ KDBUS_ITEM_NAME_REMOVE, /* .name_change */
+ KDBUS_ITEM_NAME_CHANGE, /* .name_change */
+ KDBUS_ITEM_ID_ADD, /* .id_change */
+ KDBUS_ITEM_ID_REMOVE, /* .id_change */
+ KDBUS_ITEM_REPLY_TIMEOUT, /* empty, but .reply_cookie in .kdbus_msg is filled in */
+ KDBUS_ITEM_REPLY_DEAD, /* dito */
};
/**
/* specific fields */
struct kdbus_memfd memfd;
int fds[0];
- struct kdbus_manager_msg_name_change name_change;
- struct kdbus_manager_msg_id_change id_change;
+ struct kdbus_notify_name_change name_change;
+ struct kdbus_notify_id_change id_change;
};
};
enum {
KDBUS_HELLO_STARTER = 1 << 0,
KDBUS_HELLO_ACCEPT_FD = 1 << 1,
+};
- /* The following have an effect on directed messages only --
- * not for broadcasts */
- KDBUS_HELLO_ATTACH_COMM = 1 << 10,
- KDBUS_HELLO_ATTACH_EXE = 1 << 11,
- KDBUS_HELLO_ATTACH_CMDLINE = 1 << 12,
- KDBUS_HELLO_ATTACH_CGROUP = 1 << 13,
- KDBUS_HELLO_ATTACH_CAPS = 1 << 14,
- KDBUS_HELLO_ATTACH_SECLABEL = 1 << 15,
- KDBUS_HELLO_ATTACH_AUDIT = 1 << 16,
+/* Flags for message attachments */
+enum {
+ 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,
};
struct kdbus_cmd_hello {
* more. Kernel might refuse client's
* capabilities by returning an error
* from KDBUS_HELLO */
+ __u64 attach_flags; /* userspace specifies the metadata
+ * attachments it wishes to receive with
+ * every message. */
/* kernel → userspace */
__u64 bus_flags; /* this is .flags copied verbatim from
__u64 bloom_size; /* The bloom filter size chosen by the
* bus owner */
__u64 pool_size; /* maximum size of pool buffer */
+ __u8 id128[16]; /* the unique id of the bus */
+
struct kdbus_item items[0];
};
KDBUS_MAKE_NAME,
KDBUS_MAKE_CRED, /* allow translator services which connect
* to the bus on behalf of somebody else,
- * allow specifiying the credentials of the
+ * allow specifying the credentials of the
* client to connect on behalf on. Needs
* privileges */
};
char name[0];
};
+enum {
+ KDBUS_NAME_LIST_UNIQUE_NAMES = 1 << 0,
+};
+
struct kdbus_cmd_names {
__u64 size;
+ __u64 flags;
struct kdbus_cmd_name names[0];
};
struct kdbus_cmd_name_info {
__u64 size; /* overall size of info */
- __u64 flags;
+ __u64 flags; /* query flags */
+ __u64 attach_flags; /* which meta data payload to attach */
__u64 id; /* either ID, or 0 and _ITEM_NAME follows */
struct kdbus_creds creds;
struct kdbus_item items[0]; /* list of item records */
~ianmdlvl / elogind.git / blobdiff