preliminary description of kdbus syscalls

1 files changed, 439 insertions, 1 deletions

diff --git a/sys/sys.txt b/sys/sys.txt
index 0ec36f526..adfe4acef 100644
--- a/sys/sys.txt
+++ b/sys/sys.txt
@@ -146,7 +146,7 @@ mlock(addr vma, size len[addr])
 munlock(addr vma, size len[addr])
 mlockall(flags flags[mlockall_flags])
 munlockall()
-memfd_create(name string, flags flags[memfd_flags])
+memfd_create(name string, flags flags[memfd_flags]) fd
 unshare(flags flags[clone_flags])
 kcmp(pid1 pid, pid2 pid, type flags[kcmp_flags], fd1 fd, fd2 fd)
 
@@ -1433,3 +1433,441 @@ define F_SEAL_WRITE		0x0008
 #define __NR_sched_get_priority_max 146
 #define __NR_sched_get_priority_min 147
 
+
+
+ioctl$kdbus_bus_make(fd fd, cmd const[KDBUS_CMD_BUS_MAKE], arg ptr[in, kdbus_cmd_bus_make])
+ioctl$kdbus_ep_make(fd fd, cmd const[KDBUS_CMD_ENDPOINT_MAKE], arg ptr[in, kdbus_cmd_ep_make])
+ioctl$kdbus_ep_update(fd fd, cmd const[KDBUS_CMD_ENDPOINT_UPDATE], arg ptr[in, kdbus_cmd_ep_update])
+ioctl$kdbus_hello(fd fd, cmd const[KDBUS_CMD_HELLO], arg ptr[in, kdbus_cmd_hello])
+ioctl$kdbus_name_acquire(fd fd, cmd const[KDBUS_CMD_NAME_ACQUIRE], arg ptr[in, kdbus_cmd_name_acquire])
+ioctl$kdbus_name_release(fd fd, cmd const[KDBUS_CMD_NAME_RELEASE], arg ptr[in, kdbus_cmd_name_release])
+ioctl$kdbus_free(fd fd, cmd const[KDBUS_CMD_FREE], arg ptr[in, kdbus_cmd_free])
+ioctl$kdbus_recv(fd fd, cmd const[KDBUS_CMD_RECV], arg ptr[in, kdbus_cmd_recv])
+ioctl$kdbus_send(fd fd, cmd const[KDBUS_CMD_SEND], arg ptr[in, kdbus_cmd_send])
+ioctl$kdbus_update(fd fd, cmd const[KDBUS_CMD_UPDATE], arg ptr[in, kdbus_cmd_update])
+ioctl$kdbus_bye(fd fd, cmd const[KDBUS_CMD_BYEBYE], arg ptr[in, kdbus_cmd_bye])
+ioctl$kdbus_conn_info(fd fd, cmd const[KDBUS_CMD_CONN_INFO], arg ptr[in, kdbus_cmd_info])
+ioctl$kdbus_bus_info(fd fd, cmd const[KDBUS_CMD_BUS_CREATOR_INFO], arg ptr[in, kdbus_cmd_info])
+ioctl$kdbus_list(fd fd, cmd const[KDBUS_CMD_LIST], arg ptr[in, kdbus_cmd_list])
+ioctl$kdbus_match_add(fd fd, cmd const[KDBUS_CMD_MATCH_ADD], arg ptr[in, kdbus_cmd_match])
+ioctl$kdbus_match_remove(fd fd, cmd const[KDBUS_CMD_MATCH_REMOVE], arg ptr[in, kdbus_cmd_match])
+
+kdbus_cmd_bus_make {
+	size	len[parent, int64]
+	flags	flags[kdbus_make_flags, int64]
+	rflags	const[0, int64]
+	bloom	kdbus_bloom_parameter
+	name	kdbus_make_name_parameter
+}
+
+kdbus_cmd_ep_make {
+	size	len[parent, int64]
+	flags	flags[kdbus_make_flags, int64]
+	rflags	const[0, int64]
+	name	kdbus_make_name_parameter
+}
+
+kdbus_cmd_ep_update {
+	size	len[parent, int64]
+	flags	flags[kdbus_make_flags, int64]
+	rflags	const[0, int64]
+
+	name	kdbus_make_name_parameter
+	policy	kdbus_policy_parameter
+}
+
+kdbus_cmd_hello {
+	size	len[parent, int64]
+	flags	flags[kdbus_hello_flags, int64]
+	rflags	const[0, int64]
+
+	sflags	flags[kdbus_attach_flags, int64]
+	rflags	flags[kdbus_attach_flags, int64]
+	bflags	int64
+	id	int64
+	poolsz	int64
+	off	int64
+	isize	int64
+	id0	int64
+	id1	int64
+
+	name	kdbus_make_name_parameter
+	policy	kdbus_policy_parameter
+	pids	kdbus_pids_parameter
+	creds	kdbus_creds_parameter
+	seclab	kdbus_seclabel_parameter
+}
+
+kdbus_cmd_bye {
+	size	len[parent, int64]
+	flags	const[0, int64]
+	rflags	const[0, int64]
+}
+
+kdbus_cmd_list {
+	size	len[parent, int64]
+	flags	flags[kdbus_list_flags, int64]
+	rflags	const[0, int64]
+	off	int64
+	lsize	const[0, int64]
+}
+
+kdbus_cmd_update {
+	size	len[parent, int64]
+	flags	flags[kdbus_name_flags, int64]
+	rflags	const[0, int64]
+
+	name	kdbus_make_name_parameter
+	policy	kdbus_policy_parameter
+	attach	kdbus_attach_flags_parameter
+}
+
+kdbus_cmd_name_acquire {
+	size	len[parent, int64]
+	flags	flags[kdbus_name_flags, int64]
+	rflags	const[0, int64]
+	name	kdbus_make_name_parameter
+}
+
+kdbus_cmd_name_release {
+	size	len[parent, int64]
+	flags	const[0, int64]
+	rflags	const[0, int64]
+	name	kdbus_make_name_parameter
+}
+
+kdbus_cmd_match {
+	size	len[parent, int64]
+	flags	flags[kdbus_match_flags, int64]
+	rflags	const[0, int64]
+# TODO: this needs to match between add and remove
+	cookie	int64
+
+	bloom	kdbus_bloom_parameter
+	name0	kdbus_name_parameter
+	name1	kdbus_name_parameter
+	name2	kdbus_name_parameter
+	name3	kdbus_name_parameter
+	idadd	kdbus_id_change_parameter
+	idremov	kdbus_id_change_parameter
+	id	kdbus_id_parameter
+	dstid	kdbus_id_parameter
+}
+
+kdbus_cmd_free {
+	size	len[parent, int64]
+	flags	int64
+	rflags	const[0, int64]
+	off	int64
+# TODO: followed by arbitrary sequence of parameters
+}
+
+kdbus_cmd_recv {
+	size	len[parent, int64]
+	flags	flags[kdbus_recv_flags, int64]
+	rflags	const[0, int64]
+	prio	int64
+	dropped	int64
+	msg	kdbus_msg_info
+# TODO: followed by arbitrary sequence of parameters
+}
+
+kdbus_cmd_send {
+	size	len[parent, int64]
+	flags	flags[kdbus_send_flags, int64]
+	rflags	const[0, int64]
+	msg	ptr[in, kdbus_msg]
+	reply	kdbus_msg_info
+	fd	kdbus_fd_parameter
+}
+
+kdbus_msg {
+	size	len[parent, int64]
+	flags	flags[kdbus_msg_flags, int64]
+	rflags	const[0, int64]
+
+	vec0	kdbus_payload_vec
+	vec1	kdbus_payload_vec
+	memfd0	kdbus_payload_memfd
+	memfd1	kdbus_payload_memfd
+	fds	kdbus_fd_parameter
+	bloom	kdbus_bloom_parameter
+	dname	kdbus_dst_name_parameter
+}
+
+kdbus_msg_info {
+	off	int64
+	size	int64
+	rflags	const[0, int64]
+}
+
+kdbus_cmd_info {
+	size	len[parent, int64]
+	flags	const[0, int64]
+	rflags	const[0, int64]
+
+# TODO: this is connection id, need to extract it from somewhere
+	id	int64
+	aflags	flags[kdbus_attach_flags, int64]
+# TODO: off is offset in the caller's pool buffer where the kdbus_info struct result is stored.
+# It needs to be passed to KDBUS_CMD_FREE, so it should be a resource.
+	off	int64
+	isize	const[0, int64]
+# TODO: name is optional if id is specified
+	name	kdbus_make_name_parameter
+}
+
+kdbus_bloom_parameter {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_BLOOM_PARAMETER, int64]
+	bsize	int64
+	hash	int64
+}
+
+kdbus_make_name_parameter {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_MAKE_NAME, int64]
+# TODO: this is embed strz buffer of variable-length
+	name	int64
+}
+
+kdbus_dst_name_parameter {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_DST_NAME, int64]
+# TODO: this is embed strz buffer of variable-length
+	name	int64
+}
+
+kdbus_name_parameter {
+	size	len[parent, int64]
+	type	flags[kdbus_name_params, int64]
+	flags	flags[kdbus_name_flags, int64]
+# TODO: this is embed var-len string
+	name	int64
+}
+
+kdbus_negotiate_parameter {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_NEGOTIATE, int64]
+}
+
+kdbus_policy_parameter {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_POLICY_ACCESS, int64]
+	ptype	flags[kdbus_policy_access, int64]
+	access	flags[kdbus_policy_flags, int64]
+	id	uid
+}
+
+kdbus_attach_flags_parameter {
+	size	len[parent, int64]
+	type	flags[kdbug_attach_type, int64]
+	flags	flags[kdbus_attach_flags, int64]
+}
+
+kdbus_fd_parameter {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_CANCEL_FD, int64]
+# TODO: this can be embed var-len array
+	fd	fd
+}
+
+kdbus_pids_parameter {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_PIDS, int64]
+	pid	pid
+	pad0	int32
+	tid	pid
+	pad1	int32
+	ppid	pid
+	pad2	int32
+}
+
+kdbus_creds_parameter {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_CREDS, int64]
+	uid	uid
+	pad0	int32
+	euid	uid
+	pad1	int32
+	suid	uid
+	pad2	int32
+	fsuid	uid
+	pad3	int32
+	gid	uid
+	pad4	int32
+	egid	uid
+	pad5	int32
+	sgid	uid
+	pad6	int32
+	fsgid	uid
+	pad7	int32
+}
+
+kdbus_seclabel_parameter {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_SECLABEL, int64]
+# TODO: this is some var-len string of unknown nature
+	label	int64	
+}
+
+kdbus_payload_vec {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_PAYLOAD_VEC, int64]
+	size	len[data, int64]
+	data	buffer[in]
+}
+
+kdbus_payload_memfd {
+	size	len[parent, int64]
+	type	const[KDBUS_ITEM_PAYLOAD_MEMFD, int64]
+	start	int64
+	size	int64
+	fd	fd
+	pad	int32
+}
+
+kdbus_id_change_parameter {
+	size	len[parent, int64]
+	type	flags[kdbus_id_change_type, int64]
+	id	const[0, int64]
+	flags	const[0, int64]
+}
+
+kdbus_id_parameter {
+	size	len[parent, int64]
+	type	flags[kdbus_id_type, int64]
+# TODO: what is this id?
+	id	int64
+}
+
+kdbus_make_flags = KDBUS_MAKE_ACCESS_GROUP, KDBUS_MAKE_ACCESS_WORLD
+kdbus_hello_flags = KDBUS_HELLO_ACCEPT_FD, KDBUS_HELLO_ACTIVATOR, KDBUS_HELLO_POLICY_HOLDER, KDBUS_HELLO_MONITOR
+kdbus_attach_flags = KDBUS_ATTACH_TIMESTAMP, KDBUS_ATTACH_CREDS, KDBUS_ATTACH_PIDS, KDBUS_ATTACH_AUXGROUPS, KDBUS_ATTACH_NAMES, KDBUS_ATTACH_TID_COMM, KDBUS_ATTACH_PID_COMM, KDBUS_ATTACH_EXE, KDBUS_ATTACH_CMDLINE, KDBUS_ATTACH_CGROUP, KDBUS_ATTACH_CAPS, KDBUS_ATTACH_SECLABEL, KDBUS_ATTACH_AUDIT, KDBUS_ATTACH_CONN_DESCRIPTION, KDBUS_ATTACH_ANY
+kdbus_name_flags = KDBUS_NAME_REPLACE_EXISTING, KDBUS_NAME_ALLOW_REPLACEMENT, KDBUS_NAME_QUEUE, KDBUS_NAME_IN_QUEUE, KDBUS_NAME_ACTIVATOR, KDBUS_NAME_PRIMARY, KDBUS_NAME_ACQUIRED
+kdbus_recv_flags = KDBUS_RECV_RETURN_INCOMPLETE_FDS, KDBUS_RECV_RETURN_DROPPED_MSGS
+kdbus_send_flags = KDBUS_SEND_SYNC_REPLY
+kdbus_policy_access = KDBUS_POLICY_ACCESS_NULL, KDBUS_POLICY_ACCESS_USER, KDBUS_POLICY_ACCESS_GROUP, KDBUS_POLICY_ACCESS_WORLD
+kdbus_policy_flags = KDBUS_POLICY_OWN, KDBUS_POLICY_TALK, KDBUS_POLICY_SEE
+kdbug_attach_type = KDBUS_ITEM_ATTACH_FLAGS_SEND, KDBUS_ITEM_ATTACH_FLAGS_RECV
+kdbus_msg_flags = KDBUS_MSG_EXPECT_REPLY, KDBUS_MSG_NO_AUTO_START, KDBUS_MSG_SIGNAL
+kdbus_list_flags = KDBUS_LIST_UNIQUE, KDBUS_LIST_NAMES, KDBUS_LIST_ACTIVATORS, KDBUS_LIST_QUEUED
+kdbus_match_flags = KDBUS_MATCH_REPLACE
+kdbus_name_params = KDBUS_ITEM_NAME, KDBUS_ITEM_NAME_ADD, KDBUS_ITEM_NAME_REMOVE, KDBUS_ITEM_NAME_CHANGE
+kdbus_id_change_type = KDBUS_ITEM_ID_ADD, KDBUS_ITEM_ID_REMOVE
+kdbus_id_type = KDBUS_ITEM_ID, KDBUS_ITEM_DST_ID
+
+define KDBUS_IOCTL_MAGIC		0x95
+define KDBUS_CMD_BUS_MAKE		_IOW(KDBUS_IOCTL_MAGIC, 0x00, int)
+define KDBUS_CMD_ENDPOINT_MAKE		_IOW(KDBUS_IOCTL_MAGIC, 0x10, int)
+define KDBUS_CMD_ENDPOINT_UPDATE	_IOW(KDBUS_IOCTL_MAGIC, 0x11, int)
+define KDBUS_CMD_HELLO			_IOWR(KDBUS_IOCTL_MAGIC, 0x80, int)
+define KDBUS_CMD_UPDATE			_IOW(KDBUS_IOCTL_MAGIC, 0x81, int)
+define KDBUS_CMD_BYEBYE			_IOW(KDBUS_IOCTL_MAGIC, 0x82, int)
+define KDBUS_CMD_FREE			_IOW(KDBUS_IOCTL_MAGIC, 0x83, int)
+define KDBUS_CMD_CONN_INFO		_IOR(KDBUS_IOCTL_MAGIC, 0x84, int)
+define KDBUS_CMD_BUS_CREATOR_INFO	_IOR(KDBUS_IOCTL_MAGIC, 0x85, int)
+define KDBUS_CMD_LIST			_IOR(KDBUS_IOCTL_MAGIC, 0x86, int)
+define KDBUS_CMD_SEND			_IOW(KDBUS_IOCTL_MAGIC, 0x90, int)
+define KDBUS_CMD_RECV			_IOR(KDBUS_IOCTL_MAGIC, 0x91, int)
+define KDBUS_CMD_NAME_ACQUIRE		_IOW(KDBUS_IOCTL_MAGIC, 0xa0, int)
+define KDBUS_CMD_NAME_RELEASE		_IOW(KDBUS_IOCTL_MAGIC, 0xa1, int)
+define KDBUS_CMD_MATCH_ADD		_IOW(KDBUS_IOCTL_MAGIC, 0xb0, int)
+define KDBUS_CMD_MATCH_REMOVE		_IOW(KDBUS_IOCTL_MAGIC, 0xb1, int)
+
+define KDBUS_MAKE_ACCESS_GROUP		(1ULL <<  0)
+define KDBUS_MAKE_ACCESS_WORLD		(1ULL <<  1)
+
+define KDBUS_HELLO_ACCEPT_FD		(1ULL <<  0)
+define KDBUS_HELLO_ACTIVATOR		(1ULL <<  1)
+define KDBUS_HELLO_POLICY_HOLDER	(1ULL <<  2)
+define KDBUS_HELLO_MONITOR		(1ULL <<  3)
+
+define KDBUS_ATTACH_TIMESTAMP		1ULL <<  0
+define KDBUS_ATTACH_CREDS		1ULL <<  1
+define KDBUS_ATTACH_PIDS		1ULL <<  2
+define KDBUS_ATTACH_AUXGROUPS		1ULL <<  3
+define KDBUS_ATTACH_NAMES		1ULL <<  4
+define KDBUS_ATTACH_TID_COMM		1ULL <<  5
+define KDBUS_ATTACH_PID_COMM		1ULL <<  6
+define KDBUS_ATTACH_EXE			1ULL <<  7
+define KDBUS_ATTACH_CMDLINE		1ULL <<  8
+define KDBUS_ATTACH_CGROUP		1ULL <<  9
+define KDBUS_ATTACH_CAPS		1ULL << 10
+define KDBUS_ATTACH_SECLABEL		1ULL << 11
+define KDBUS_ATTACH_AUDIT		1ULL << 12
+define KDBUS_ATTACH_CONN_DESCRIPTION	1ULL << 13
+define KDBUS_ATTACH_ANY			~0ULL
+
+define KDBUS_NAME_REPLACE_EXISTING	1ULL <<  0
+define KDBUS_NAME_ALLOW_REPLACEMENT	1ULL <<  1
+define KDBUS_NAME_QUEUE			1ULL <<  2
+define KDBUS_NAME_IN_QUEUE		1ULL <<  3
+define KDBUS_NAME_ACTIVATOR		1ULL <<  4
+define KDBUS_NAME_PRIMARY		1ULL <<  5
+define KDBUS_NAME_ACQUIRED		1ULL <<  6
+
+define KDBUS_RECV_RETURN_INCOMPLETE_FDS	1ULL <<  0
+define KDBUS_RECV_RETURN_DROPPED_MSGS	1ULL <<  1
+
+define KDBUS_SEND_SYNC_REPLY		1ULL << 0
+
+define KDBUS_LIST_UNIQUE		1ULL <<  0
+define KDBUS_LIST_NAMES			1ULL <<  1
+define KDBUS_LIST_ACTIVATORS		1ULL <<  2
+define KDBUS_LIST_QUEUED		1ULL <<  3
+
+define KDBUS_POLICY_ACCESS_NULL		0
+define KDBUS_POLICY_ACCESS_USER		1
+define KDBUS_POLICY_ACCESS_GROUP	2
+define KDBUS_POLICY_ACCESS_WORLD	3
+
+define KDBUS_POLICY_SEE			0
+define KDBUS_POLICY_TALK		1
+define KDBUS_POLICY_OWN			2
+
+define KDBUS_MATCH_REPLACE		1ULL <<  0
+
+define KDBUS_MSG_EXPECT_REPLY		1ULL << 0
+define KDBUS_MSG_NO_AUTO_START		1ULL << 1
+define KDBUS_MSG_SIGNAL			1ULL << 2
+
+define KDBUS_ITEM_NEGOTIATE		1
+define KDBUS_ITEM_PAYLOAD_VEC		2
+define KDBUS_ITEM_PAYLOAD_OFF		3
+define KDBUS_ITEM_PAYLOAD_MEMFD		4
+define KDBUS_ITEM_FDS			5
+define KDBUS_ITEM_CANCEL_FD		6
+define KDBUS_ITEM_BLOOM_PARAMETER	7
+define KDBUS_ITEM_BLOOM_FILTER		8
+define KDBUS_ITEM_BLOOM_MASK		9
+define KDBUS_ITEM_DST_NAME		10
+define KDBUS_ITEM_MAKE_NAME		11
+define KDBUS_ITEM_ATTACH_FLAGS_SEND	12
+define KDBUS_ITEM_ATTACH_FLAGS_RECV	13
+define KDBUS_ITEM_ID			14
+define KDBUS_ITEM_NAME			15
+define KDBUS_ITEM_DST_ID		16
+define KDBUS_ITEM_TIMESTAMP		(0x1000 + 0)
+define KDBUS_ITEM_CREDS			(0x1000 + 1)
+define KDBUS_ITEM_PIDS			(0x1000 + 2)
+define KDBUS_ITEM_AUXGROUPS		(0x1000 + 3)
+define KDBUS_ITEM_OWNED_NAME		(0x1000 + 4)
+define KDBUS_ITEM_TID_COMM		(0x1000 + 5)
+define KDBUS_ITEM_PID_COM		(0x1000 + 6)
+define KDBUS_ITEM_EXE			(0x1000 + 7)
+define KDBUS_ITEM_CMDLINE		(0x1000 + 8)
+define KDBUS_ITEM_CGROUP		(0x1000 + 9)
+define KDBUS_ITEM_CAPS			(0x1000 + 10)
+define KDBUS_ITEM_SECLABEL		(0x1000 + 11)
+define KDBUS_ITEM_AUDIT			(0x1000 + 12)
+define KDBUS_ITEM_CONN_DESCRIPTION	(0x1000 + 13)
+define KDBUS_ITEM_POLICY_ACCESS		(0x2000 + 0)
+define KDBUS_ITEM_NAME_ADD		(0x8000 + 0)
+define KDBUS_ITEM_NAME_REMOVE		(0x8000 + 1)
+define KDBUS_ITEM_NAME_CHANGE		(0x8000 + 2)
+define KDBUS_ITEM_ID_ADD		(0x8000 + 3)
+define KDBUS_ITEM_ID_REMOVE		(0x8000 + 4)
+define KDBUS_ITEM_REPLY_TIMEOUT		(0x8000 + 5)
+define KDBUS_ITEM_REPLY_DEAD		(0x8000 + 6)
+