sys/linux/socket_bluetooth.txt

# Copyright 2017 syzkaller project authors. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.

# AF_BLUETOOTH support.

include <linux/socket.h>
include <linux/net.h>
include <linux/isdn/capilli.h>
include <net/bluetooth/bluetooth.h>
include <net/bluetooth/hci_sock.h>
include <net/bluetooth/l2cap.h>
include <net/bluetooth/cmtp/cmtp.h>
include <net/bluetooth/bnep/bnep.h>
include <net/bluetooth/hidp/hidp.h>
include <net/bluetooth/sco.h>
include <net/bluetooth/hci.h>
include <net/bluetooth/rfcomm.h>
include <asm/ioctls.h>

resource sock_bt[sock]
resource sock_bt_hci[sock_bt]

syz_init_net_socket$bt_hci(fam const[AF_BLUETOOTH], type const[SOCK_RAW], proto const[BTPROTO_HCI]) sock_bt_hci
bind$bt_hci(fd sock_bt_hci, addr ptr[in, sockaddr_hci], addrlen len[addr])
ioctl$sock_bt_hci(fd sock_bt_hci, cmd flags[bt_hci_ioctl], arg buffer[inout])
ioctl$HCIINQUIRY(fd sock_bt_hci, cmd const[HCIINQUIRY], arg ptr[in, hci_inquiry_req])
setsockopt$bt_hci_HCI_DATA_DIR(fd sock_bt_hci, level const[0], opt const[HCI_DATA_DIR], arg ptr[in, int32], arglen len[arg])
setsockopt$bt_hci_HCI_TIME_STAMP(fd sock_bt_hci, level const[0], opt const[HCI_TIME_STAMP], arg ptr[in, int32], arglen len[arg])
setsockopt$bt_hci_HCI_FILTER(fd sock_bt_hci, level const[0], opt const[HCI_FILTER], arg ptr[in, hci_ufilter], arglen len[arg])
getsockopt$bt_hci(fd sock, level const[0], opt flags[bt_hci_sockopt], arg buffer[out], arglen ptr[inout, len[arg, int32]])

resource fd_vhci[fd]
openat$vhci(fd const[AT_FDCWD], file ptr[in, string["/dev/vhci"]], flags flags[open_flags]) fd_vhci
write$vhci(fd fd_vhci, data ptr[in, vhci_command], size bytesize[data])

vhci_command [
	HCI_EVENT_PKT	vhci_command_generic[HCI_EVENT_PKT]
	HCI_ACLDATA_PKT	vhci_command_generic[HCI_ACLDATA_PKT]
	HCI_SCODATA_PKT	vhci_command_generic[HCI_SCODATA_PKT]
	HCI_VENDOR_PKT	vhci_command_vendor_pkt
] [varlen]

type vhci_command_generic[CMD] {
	cmd	const[CMD, int8]
# TODO: what's the format of these packets? Is there anything interesting?
	data	array[int8]
}

vhci_command_vendor_pkt {
	cmd	const[HCI_VENDOR_PKT, int8]
	opcode	flags[vhci_vendor_pkt_opcode, int8]
}

vhci_vendor_pkt_opcode = HCI_PRIMARY, HCI_AMP, HCI_EXTERNAL_CONFIG, HCI_RAW_DEVICE

define HCI_EXTERNAL_CONFIG	0x40
define HCI_RAW_DEVICE	0x80

resource sock_bt_sco[sock_bt]

syz_init_net_socket$bt_sco(fam const[AF_BLUETOOTH], type const[SOCK_SEQPACKET], proto const[BTPROTO_SCO]) sock_bt_sco
bind$bt_sco(fd sock_bt_sco, addr ptr[in, sockaddr_sco], addrlen len[addr])
connect$bt_sco(fd sock_bt_sco, addr ptr[in, sockaddr_sco], addrlen len[addr])
getsockopt$bt_sco_SCO_OPTIONS(fd sock_bt_sco, level const[SOL_SCO], opt const[SCO_OPTIONS], arg buffer[out], arglen ptr[inout, len[arg, int32]])
getsockopt$bt_sco_SCO_CONNINFO(fd sock_bt_sco, level const[SOL_SCO], opt const[SCO_CONNINFO], arg buffer[out], arglen ptr[inout, len[arg, int32]])

resource sock_bt_l2cap[sock_bt]

syz_init_net_socket$bt_l2cap(fam const[AF_BLUETOOTH], type flags[bt_l2cap_type], proto const[BTPROTO_L2CAP]) sock_bt_l2cap
bind$bt_l2cap(fd sock_bt_l2cap, addr ptr[in, sockaddr_l2], addrlen len[addr])
connect$bt_l2cap(fd sock_bt_l2cap, addr ptr[in, sockaddr_l2], addrlen len[addr])
accept4$bt_l2cap(fd sock_bt_l2cap, peer ptr[out, sockaddr_l2, opt], peerlen ptr[inout, len[peer, int32]], flags flags[accept_flags]) sock_bt_l2cap
setsockopt$bt_l2cap_L2CAP_OPTIONS(fd sock_bt_l2cap, level const[SOL_L2CAP], opt const[L2CAP_OPTIONS], arg ptr[in, l2cap_options], arglen len[arg])
getsockopt$bt_l2cap_L2CAP_OPTIONS(fd sock_bt_l2cap, level const[SOL_L2CAP], opt const[L2CAP_OPTIONS], arg ptr[out, l2cap_options], arglen ptr[inout, len[arg, int32]])
setsockopt$bt_l2cap_L2CAP_LM(fd sock_bt_l2cap, level const[SOL_L2CAP], opt const[L2CAP_LM], arg ptr[in, flags[bt_l2cap_lm, int32]], arglen len[arg])
getsockopt$bt_l2cap_L2CAP_LM(fd sock_bt_l2cap, level const[SOL_L2CAP], opt const[L2CAP_LM], arg ptr[out, int32], arglen ptr[inout, len[arg, int32]])
setsockopt$bt_l2cap_L2CAP_CONNINFO(fd sock_bt_l2cap, level const[SOL_L2CAP], opt const[L2CAP_CONNINFO], arg ptr[in, l2cap_conninfo], arglen len[arg])
getsockopt$bt_l2cap_L2CAP_CONNINFO(fd sock_bt_l2cap, level const[SOL_L2CAP], opt const[L2CAP_CONNINFO], arg ptr[out, l2cap_conninfo], arglen ptr[inout, len[arg, int32]])

resource sock_bt_rfcomm[sock_bt]

socket$bt_rfcomm(fam const[AF_BLUETOOTH], type flags[bt_rfcomm_type], proto const[BTPROTO_RFCOMM]) sock_bt_rfcomm
bind$bt_rfcomm(fd sock_bt_rfcomm, addr ptr[in, sockaddr_rc], addrlen len[addr])
connect$bt_rfcomm(fd sock_bt_rfcomm, addr ptr[in, sockaddr_rc], addrlen len[addr])
setsockopt$bt_rfcomm_RFCOMM_LM(fd sock_bt_rfcomm, level const[SOL_RFCOMM], opt const[RFCOMM_LM], arg ptr[in, flags[bt_l2cap_lm, int32]], arglen len[arg])
getsockopt$bt_rfcomm_RFCOMM_LM(fd sock_bt_rfcomm, level const[SOL_RFCOMM], opt const[RFCOMM_LM], arg ptr[out, int32], arglen ptr[inout, len[arg, int32]])
getsockopt$bt_rfcomm_RFCOMM_CONNINFO(fd sock_bt_rfcomm, level const[SOL_RFCOMM], opt const[RFCOMM_CONNINFO], arg buffer[out], arglen ptr[inout, len[arg, int32]])

resource sock_bt_hidp[sock_bt]

socket$bt_hidp(fam const[AF_BLUETOOTH], type const[SOCK_RAW], proto const[BTPROTO_HIDP]) sock_bt_hidp
ioctl$sock_bt_hidp_HIDPCONNADD(fd sock_bt_hidp, cmd const[HIDPCONNADD], arg ptr[in, hidp_connadd_req])
ioctl$sock_bt_hidp_HIDPCONNDEL(fd sock_bt_hidp, cmd const[HIDPCONNDEL], arg ptr[in, hidp_conndel_req])
ioctl$sock_bt_hidp_HIDPGETCONNLIST(fd sock_bt_hidp, cmd const[HIDPGETCONNLIST], arg ptr[in, hidp_connlist_req])
ioctl$sock_bt_hidp_HIDPGETCONNINFO(fd sock_bt_hidp, cmd const[HIDPGETCONNINFO], arg ptr[in, hidp_conninfo])

resource sock_bt_cmtp[sock_bt]

socket$bt_cmtp(fam const[AF_BLUETOOTH], type const[SOCK_RAW], proto const[BTPROTO_CMTP]) sock_bt_cmtp
ioctl$sock_bt_cmtp_CMTPCONNADD(fd sock_bt_cmtp, cmd const[CMTPCONNADD], arg ptr[in, cmtp_connadd_req])
ioctl$sock_bt_cmtp_CMTPCONNDEL(fd sock_bt_cmtp, cmd const[CMTPCONNDEL], arg ptr[in, cmtp_conndel_req])
ioctl$sock_bt_cmtp_CMTPGETCONNLIST(fd sock_bt_cmtp, cmd const[CMTPGETCONNLIST], arg ptr[in, cmtp_connlist_req])
ioctl$sock_bt_cmtp_CMTPGETCONNINFO(fd sock_bt_cmtp, cmd const[CMTPGETCONNINFO], arg ptr[in, cmtp_conninfo])

resource sock_bt_bnep[sock_bt]

socket$bt_bnep(fam const[AF_BLUETOOTH], type const[SOCK_RAW], proto const[BTPROTO_BNEP]) sock_bt_bnep
ioctl$sock_bt_bnep_BNEPCONNADD(fd sock_bt_bnep, cmd const[BNEPCONNADD], arg ptr[in, bnep_connadd_req])
ioctl$sock_bt_bnep_BNEPCONNDEL(fd sock_bt_bnep, cmd const[BNEPCONNDEL], arg ptr[in, bnep_conndel_req])
ioctl$sock_bt_bnep_BNEPGETCONNLIST(fd sock_bt_bnep, cmd const[BNEPGETCONNLIST], arg ptr[in, bnep_connlist_req])
ioctl$sock_bt_bnep_BNEPGETCONNINFO(fd sock_bt_bnep, cmd const[BNEPGETCONNINFO], arg ptr[in, bnep_conninfo])
ioctl$sock_bt_bnep_BNEPGETSUPPFEAT(fd sock_bt_bnep, cmd const[BNEPGETSUPPFEAT], arg ptr[in, int32])

setsockopt$bt_BT_SECURITY(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_SECURITY], arg ptr[in, bt_security], arglen len[arg])
getsockopt$bt_BT_SECURITY(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_SECURITY], arg ptr[out, bt_security], arglen len[arg])
setsockopt$bt_BT_DEFER_SETUP(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_DEFER_SETUP], arg ptr[in, bool32], arglen len[arg])
getsockopt$bt_BT_DEFER_SETUP(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_DEFER_SETUP], arg ptr[in, bool32], arglen ptr[in, len[arg, intptr]])
setsockopt$bt_BT_VOICE(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_VOICE], arg ptr[in, flags[bt_voice_settings, int16]], arglen len[arg])
getsockopt$bt_BT_VOICE(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_VOICE], arg ptr[in, int16], arglen ptr[in, len[arg, intptr]])
setsockopt$bt_BT_FLUSHABLE(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_FLUSHABLE], arg ptr[in, int32], arglen len[arg])
getsockopt$bt_BT_FLUSHABLE(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_FLUSHABLE], arg ptr[in, int32], arglen ptr[in, len[arg, intptr]])
setsockopt$bt_BT_POWER(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_POWER], arg ptr[in, int8], arglen len[arg])
getsockopt$bt_BT_POWER(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_POWER], arg ptr[in, int8], arglen ptr[in, len[arg, intptr]])
setsockopt$bt_BT_CHANNEL_POLICY(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_CHANNEL_POLICY], arg ptr[in, int32], arglen len[arg])
getsockopt$bt_BT_CHANNEL_POLICY(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_CHANNEL_POLICY], arg ptr[in, int32], arglen ptr[in, len[arg, intptr]])
setsockopt$bt_BT_SNDMTU(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_SNDMTU], arg ptr[in, int16], arglen len[arg])
getsockopt$bt_BT_SNDMTU(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_SNDMTU], arg ptr[in, int16], arglen ptr[in, len[arg, intptr]])
setsockopt$bt_BT_RCVMTU(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_RCVMTU], arg ptr[in, int16], arglen len[arg])
getsockopt$bt_BT_RCVMTU(fd sock_bt, level const[SOL_BLUETOOTH], opt const[BT_RCVMTU], arg ptr[in, int16], arglen ptr[in, len[arg, intptr]])

bt_voice_settings = BT_VOICE_TRANSPARENT, BT_VOICE_CVSD_16BIT

sockaddr_hci {
	fam	const[AF_BLUETOOTH, int16]
	dev	ifindex
	chan	flags[bt_chi_chan, int16]
}

hci_inquiry_req {
	dev	ifindex
	flags	int16
	lap0	int8
	lap1	int8
	lap2	int8
	len	int8
	rsp	int8
}

hci_ufilter {
	type	int32
	event0	int32
	event1	int32
	opcode	int16
}

sockaddr_sco {
	fam	const[AF_BLUETOOTH, int16]
	addr	bdaddr
}

sockaddr_l2 {
	fam	const[AF_BLUETOOTH, int16]
	psm	int16
	addr	bdaddr
	cid	int16
	typ	int8
}

bdaddr {
	addr0	int8
	addr1	int8
	addr2	int8
	addr3	int8
	addr4	int8
	addr5	int8
}

bt_security {
	lev	int8
	keysize	int8
}

l2cap_options {
	omtu	int16
	imtu	int16
	flushto	int16
	mode	int8
	fcs	int8
	maxtx	int8
	txwin	int16
}

l2cap_conninfo {
	handle	int16
	devcls0	int8
	devcls1	int8
	devcls2	int8
}

sockaddr_rc {
	fam	const[AF_BLUETOOTH, int16]
	addr	bdaddr
	chan	int8
}

hidp_connadd_req {
	ctrlsk	sock
	intrsk	sock
	parser	int16
	rdsize	len[rddata, int16]
	rddata	ptr[in, array[int8]]
	country	int8
	subclas	int8
	vendor	int16
	product	int16
	version	int16
	flags	flags[hidp_connadd_flags, int32]
	idleto	int32
	name	string[hidp_connadd_names, 128]
}

hidp_connadd_names = "syz0", "syz1"
hidp_connadd_flags = HIDP_VIRTUAL_CABLE_UNPLUG_BIT, HIDP_BOOT_PROTOCOL_MODE_BIT

define HIDP_VIRTUAL_CABLE_UNPLUG_BIT	1<<HIDP_VIRTUAL_CABLE_UNPLUG
define HIDP_BOOT_PROTOCOL_MODE_BIT	1<<HIDP_BOOT_PROTOCOL_MODE

hidp_conndel_req {
	addr	bdaddr
	flags	int32
}

hidp_conninfo {
	addr	bdaddr
	flags	int32
	state	int16
	vendor	int16
	product	int16
	ver	int16
	name	array[int8, 128]
}

hidp_connlist_req {
	cnum	len[ci, int32]
	ci	ptr[out, array[hidp_conninfo]]
}

cmtp_connadd_req {
	sock	sock
	flags	int32
}

cmtp_conndel_req {
	addr	bdaddr
	flags	int32
}

cmtp_conninfo {
	addr	bdaddr
	flags	int32
	state	int16
	num	int32
}

cmtp_connlist_req {
	cnum	len[ci, int32]
	ci	ptr[out, array[cmtp_conninfo]]
}

bnep_connadd_req {
	sock	sock
	flags	int32
	role	int16
	device	array[int8]
}

bnep_conndel_req {
	flags	int32
	dst	mac_addr
}

bnep_conninfo {
	flags	int32
	role	int16
	state	int16
	dst	mac_addr
	device	devname
}

bnep_connlist_req {
	cnum	len[ci, int32]
	ci	ptr[out, array[bnep_conninfo]]
}

bt_chi_chan = HCI_CHANNEL_RAW, HCI_CHANNEL_USER, HCI_CHANNEL_MONITOR, HCI_CHANNEL_CONTROL
bt_hci_ioctl = HCIDEVUP, HCIDEVDOWN, HCIDEVRESET, HCIDEVRESTAT, HCIGETDEVLIST, HCIGETDEVINFO, HCIGETCONNLIST, HCIGETCONNINFO, HCIGETAUTHINFO, HCISETRAW, HCISETSCAN, HCISETAUTH, HCISETENCRYPT, HCISETPTYPE, HCISETLINKPOL, HCISETLINKMODE, HCISETACLMTU, HCISETSCOMTU, HCIBLOCKADDR, HCIUNBLOCKADDR, HCIINQUIRY
bt_hci_sockopt = HCI_DATA_DIR, HCI_TIME_STAMP, HCI_FILTER
bt_l2cap_type = SOCK_SEQPACKET, SOCK_STREAM, SOCK_DGRAM, SOCK_RAW
bt_l2cap_lm = L2CAP_LM_MASTER, L2CAP_LM_AUTH, L2CAP_LM_ENCRYPT, L2CAP_LM_TRUSTED, L2CAP_LM_RELIABLE, L2CAP_LM_SECURE, L2CAP_LM_FIPS
bt_rfcomm_type = SOCK_STREAM, SOCK_RAW