xref: /OK3568_Linux_fs/kernel/include/uapi/linux/mptcp.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2*4882a593Smuzhiyun #ifndef _UAPI_MPTCP_H
3*4882a593Smuzhiyun #define _UAPI_MPTCP_H
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #include <linux/const.h>
6*4882a593Smuzhiyun #include <linux/types.h>
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun #define MPTCP_SUBFLOW_FLAG_MCAP_REM		_BITUL(0)
9*4882a593Smuzhiyun #define MPTCP_SUBFLOW_FLAG_MCAP_LOC		_BITUL(1)
10*4882a593Smuzhiyun #define MPTCP_SUBFLOW_FLAG_JOIN_REM		_BITUL(2)
11*4882a593Smuzhiyun #define MPTCP_SUBFLOW_FLAG_JOIN_LOC		_BITUL(3)
12*4882a593Smuzhiyun #define MPTCP_SUBFLOW_FLAG_BKUP_REM		_BITUL(4)
13*4882a593Smuzhiyun #define MPTCP_SUBFLOW_FLAG_BKUP_LOC		_BITUL(5)
14*4882a593Smuzhiyun #define MPTCP_SUBFLOW_FLAG_FULLY_ESTABLISHED	_BITUL(6)
15*4882a593Smuzhiyun #define MPTCP_SUBFLOW_FLAG_CONNECTED		_BITUL(7)
16*4882a593Smuzhiyun #define MPTCP_SUBFLOW_FLAG_MAPVALID		_BITUL(8)
17*4882a593Smuzhiyun 
18*4882a593Smuzhiyun enum {
19*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_UNSPEC,
20*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_TOKEN_REM,
21*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_TOKEN_LOC,
22*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_RELWRITE_SEQ,
23*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_MAP_SEQ,
24*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_MAP_SFSEQ,
25*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_SSN_OFFSET,
26*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_MAP_DATALEN,
27*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_FLAGS,
28*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_ID_REM,
29*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_ID_LOC,
30*4882a593Smuzhiyun 	MPTCP_SUBFLOW_ATTR_PAD,
31*4882a593Smuzhiyun 	__MPTCP_SUBFLOW_ATTR_MAX
32*4882a593Smuzhiyun };
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun #define MPTCP_SUBFLOW_ATTR_MAX (__MPTCP_SUBFLOW_ATTR_MAX - 1)
35*4882a593Smuzhiyun 
36*4882a593Smuzhiyun /* netlink interface */
37*4882a593Smuzhiyun #define MPTCP_PM_NAME		"mptcp_pm"
38*4882a593Smuzhiyun #define MPTCP_PM_CMD_GRP_NAME	"mptcp_pm_cmds"
39*4882a593Smuzhiyun #define MPTCP_PM_VER		0x1
40*4882a593Smuzhiyun 
41*4882a593Smuzhiyun /*
42*4882a593Smuzhiyun  * ATTR types defined for MPTCP
43*4882a593Smuzhiyun  */
44*4882a593Smuzhiyun enum {
45*4882a593Smuzhiyun 	MPTCP_PM_ATTR_UNSPEC,
46*4882a593Smuzhiyun 
47*4882a593Smuzhiyun 	MPTCP_PM_ATTR_ADDR,				/* nested address */
48*4882a593Smuzhiyun 	MPTCP_PM_ATTR_RCV_ADD_ADDRS,			/* u32 */
49*4882a593Smuzhiyun 	MPTCP_PM_ATTR_SUBFLOWS,				/* u32 */
50*4882a593Smuzhiyun 
51*4882a593Smuzhiyun 	__MPTCP_PM_ATTR_MAX
52*4882a593Smuzhiyun };
53*4882a593Smuzhiyun 
54*4882a593Smuzhiyun #define MPTCP_PM_ATTR_MAX (__MPTCP_PM_ATTR_MAX - 1)
55*4882a593Smuzhiyun 
56*4882a593Smuzhiyun enum {
57*4882a593Smuzhiyun 	MPTCP_PM_ADDR_ATTR_UNSPEC,
58*4882a593Smuzhiyun 
59*4882a593Smuzhiyun 	MPTCP_PM_ADDR_ATTR_FAMILY,			/* u16 */
60*4882a593Smuzhiyun 	MPTCP_PM_ADDR_ATTR_ID,				/* u8 */
61*4882a593Smuzhiyun 	MPTCP_PM_ADDR_ATTR_ADDR4,			/* struct in_addr */
62*4882a593Smuzhiyun 	MPTCP_PM_ADDR_ATTR_ADDR6,			/* struct in6_addr */
63*4882a593Smuzhiyun 	MPTCP_PM_ADDR_ATTR_PORT,			/* u16 */
64*4882a593Smuzhiyun 	MPTCP_PM_ADDR_ATTR_FLAGS,			/* u32 */
65*4882a593Smuzhiyun 	MPTCP_PM_ADDR_ATTR_IF_IDX,			/* s32 */
66*4882a593Smuzhiyun 
67*4882a593Smuzhiyun 	__MPTCP_PM_ADDR_ATTR_MAX
68*4882a593Smuzhiyun };
69*4882a593Smuzhiyun 
70*4882a593Smuzhiyun #define MPTCP_PM_ADDR_ATTR_MAX (__MPTCP_PM_ADDR_ATTR_MAX - 1)
71*4882a593Smuzhiyun 
72*4882a593Smuzhiyun #define MPTCP_PM_ADDR_FLAG_SIGNAL			(1 << 0)
73*4882a593Smuzhiyun #define MPTCP_PM_ADDR_FLAG_SUBFLOW			(1 << 1)
74*4882a593Smuzhiyun #define MPTCP_PM_ADDR_FLAG_BACKUP			(1 << 2)
75*4882a593Smuzhiyun 
76*4882a593Smuzhiyun enum {
77*4882a593Smuzhiyun 	MPTCP_PM_CMD_UNSPEC,
78*4882a593Smuzhiyun 
79*4882a593Smuzhiyun 	MPTCP_PM_CMD_ADD_ADDR,
80*4882a593Smuzhiyun 	MPTCP_PM_CMD_DEL_ADDR,
81*4882a593Smuzhiyun 	MPTCP_PM_CMD_GET_ADDR,
82*4882a593Smuzhiyun 	MPTCP_PM_CMD_FLUSH_ADDRS,
83*4882a593Smuzhiyun 	MPTCP_PM_CMD_SET_LIMITS,
84*4882a593Smuzhiyun 	MPTCP_PM_CMD_GET_LIMITS,
85*4882a593Smuzhiyun 
86*4882a593Smuzhiyun 	__MPTCP_PM_CMD_AFTER_LAST
87*4882a593Smuzhiyun };
88*4882a593Smuzhiyun 
89*4882a593Smuzhiyun #define MPTCP_INFO_FLAG_FALLBACK		_BITUL(0)
90*4882a593Smuzhiyun #define MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED	_BITUL(1)
91*4882a593Smuzhiyun 
92*4882a593Smuzhiyun struct mptcp_info {
93*4882a593Smuzhiyun 	__u8	mptcpi_subflows;
94*4882a593Smuzhiyun 	__u8	mptcpi_add_addr_signal;
95*4882a593Smuzhiyun 	__u8	mptcpi_add_addr_accepted;
96*4882a593Smuzhiyun 	__u8	mptcpi_subflows_max;
97*4882a593Smuzhiyun 	__u8	mptcpi_add_addr_signal_max;
98*4882a593Smuzhiyun 	__u8	mptcpi_add_addr_accepted_max;
99*4882a593Smuzhiyun 	__u32	mptcpi_flags;
100*4882a593Smuzhiyun 	__u32	mptcpi_token;
101*4882a593Smuzhiyun 	__u64	mptcpi_write_seq;
102*4882a593Smuzhiyun 	__u64	mptcpi_snd_una;
103*4882a593Smuzhiyun 	__u64	mptcpi_rcv_nxt;
104*4882a593Smuzhiyun };
105*4882a593Smuzhiyun 
106*4882a593Smuzhiyun #endif /* _UAPI_MPTCP_H */
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