196 lines
5.4 KiB
C
196 lines
5.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
|
|
#ifndef _UAPI_MPTCP_H
|
|
#define _UAPI_MPTCP_H
|
|
|
|
#include <linux/const.h>
|
|
#include <linux/types.h>
|
|
|
|
#define MPTCP_SUBFLOW_FLAG_MCAP_REM _BITUL(0)
|
|
#define MPTCP_SUBFLOW_FLAG_MCAP_LOC _BITUL(1)
|
|
#define MPTCP_SUBFLOW_FLAG_JOIN_REM _BITUL(2)
|
|
#define MPTCP_SUBFLOW_FLAG_JOIN_LOC _BITUL(3)
|
|
#define MPTCP_SUBFLOW_FLAG_BKUP_REM _BITUL(4)
|
|
#define MPTCP_SUBFLOW_FLAG_BKUP_LOC _BITUL(5)
|
|
#define MPTCP_SUBFLOW_FLAG_FULLY_ESTABLISHED _BITUL(6)
|
|
#define MPTCP_SUBFLOW_FLAG_CONNECTED _BITUL(7)
|
|
#define MPTCP_SUBFLOW_FLAG_MAPVALID _BITUL(8)
|
|
|
|
enum {
|
|
MPTCP_SUBFLOW_ATTR_UNSPEC,
|
|
MPTCP_SUBFLOW_ATTR_TOKEN_REM,
|
|
MPTCP_SUBFLOW_ATTR_TOKEN_LOC,
|
|
MPTCP_SUBFLOW_ATTR_RELWRITE_SEQ,
|
|
MPTCP_SUBFLOW_ATTR_MAP_SEQ,
|
|
MPTCP_SUBFLOW_ATTR_MAP_SFSEQ,
|
|
MPTCP_SUBFLOW_ATTR_SSN_OFFSET,
|
|
MPTCP_SUBFLOW_ATTR_MAP_DATALEN,
|
|
MPTCP_SUBFLOW_ATTR_FLAGS,
|
|
MPTCP_SUBFLOW_ATTR_ID_REM,
|
|
MPTCP_SUBFLOW_ATTR_ID_LOC,
|
|
MPTCP_SUBFLOW_ATTR_PAD,
|
|
__MPTCP_SUBFLOW_ATTR_MAX
|
|
};
|
|
|
|
#define MPTCP_SUBFLOW_ATTR_MAX (__MPTCP_SUBFLOW_ATTR_MAX - 1)
|
|
|
|
/* netlink interface */
|
|
#define MPTCP_PM_NAME "mptcp_pm"
|
|
#define MPTCP_PM_CMD_GRP_NAME "mptcp_pm_cmds"
|
|
#define MPTCP_PM_EV_GRP_NAME "mptcp_pm_events"
|
|
#define MPTCP_PM_VER 0x1
|
|
|
|
/*
|
|
* ATTR types defined for MPTCP
|
|
*/
|
|
enum {
|
|
MPTCP_PM_ATTR_UNSPEC,
|
|
|
|
MPTCP_PM_ATTR_ADDR, /* nested address */
|
|
MPTCP_PM_ATTR_RCV_ADD_ADDRS, /* u32 */
|
|
MPTCP_PM_ATTR_SUBFLOWS, /* u32 */
|
|
|
|
__MPTCP_PM_ATTR_MAX
|
|
};
|
|
|
|
#define MPTCP_PM_ATTR_MAX (__MPTCP_PM_ATTR_MAX - 1)
|
|
|
|
enum {
|
|
MPTCP_PM_ADDR_ATTR_UNSPEC,
|
|
|
|
MPTCP_PM_ADDR_ATTR_FAMILY, /* u16 */
|
|
MPTCP_PM_ADDR_ATTR_ID, /* u8 */
|
|
MPTCP_PM_ADDR_ATTR_ADDR4, /* struct in_addr */
|
|
MPTCP_PM_ADDR_ATTR_ADDR6, /* struct in6_addr */
|
|
MPTCP_PM_ADDR_ATTR_PORT, /* u16 */
|
|
MPTCP_PM_ADDR_ATTR_FLAGS, /* u32 */
|
|
MPTCP_PM_ADDR_ATTR_IF_IDX, /* s32 */
|
|
|
|
__MPTCP_PM_ADDR_ATTR_MAX
|
|
};
|
|
|
|
#define MPTCP_PM_ADDR_ATTR_MAX (__MPTCP_PM_ADDR_ATTR_MAX - 1)
|
|
|
|
#define MPTCP_PM_ADDR_FLAG_SIGNAL (1 << 0)
|
|
#define MPTCP_PM_ADDR_FLAG_SUBFLOW (1 << 1)
|
|
#define MPTCP_PM_ADDR_FLAG_BACKUP (1 << 2)
|
|
|
|
enum {
|
|
MPTCP_PM_CMD_UNSPEC,
|
|
|
|
MPTCP_PM_CMD_ADD_ADDR,
|
|
MPTCP_PM_CMD_DEL_ADDR,
|
|
MPTCP_PM_CMD_GET_ADDR,
|
|
MPTCP_PM_CMD_FLUSH_ADDRS,
|
|
MPTCP_PM_CMD_SET_LIMITS,
|
|
MPTCP_PM_CMD_GET_LIMITS,
|
|
MPTCP_PM_CMD_SET_FLAGS,
|
|
|
|
__MPTCP_PM_CMD_AFTER_LAST
|
|
};
|
|
|
|
#define MPTCP_INFO_FLAG_FALLBACK _BITUL(0)
|
|
#define MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED _BITUL(1)
|
|
|
|
struct mptcp_info {
|
|
__u8 mptcpi_subflows;
|
|
__u8 mptcpi_add_addr_signal;
|
|
__u8 mptcpi_add_addr_accepted;
|
|
__u8 mptcpi_subflows_max;
|
|
__u8 mptcpi_add_addr_signal_max;
|
|
__u8 mptcpi_add_addr_accepted_max;
|
|
__u32 mptcpi_flags;
|
|
__u32 mptcpi_token;
|
|
__u64 mptcpi_write_seq;
|
|
__u64 mptcpi_snd_una;
|
|
__u64 mptcpi_rcv_nxt;
|
|
__u8 mptcpi_local_addr_used;
|
|
__u8 mptcpi_local_addr_max;
|
|
__u8 mptcpi_csum_enabled;
|
|
};
|
|
|
|
/*
|
|
* MPTCP_EVENT_CREATED: token, family, saddr4 | saddr6, daddr4 | daddr6,
|
|
* sport, dport
|
|
* A new MPTCP connection has been created. It is the good time to allocate
|
|
* memory and send ADD_ADDR if needed. Depending on the traffic-patterns
|
|
* it can take a long time until the MPTCP_EVENT_ESTABLISHED is sent.
|
|
*
|
|
* MPTCP_EVENT_ESTABLISHED: token, family, saddr4 | saddr6, daddr4 | daddr6,
|
|
* sport, dport
|
|
* A MPTCP connection is established (can start new subflows).
|
|
*
|
|
* MPTCP_EVENT_CLOSED: token
|
|
* A MPTCP connection has stopped.
|
|
*
|
|
* MPTCP_EVENT_ANNOUNCED: token, rem_id, family, daddr4 | daddr6 [, dport]
|
|
* A new address has been announced by the peer.
|
|
*
|
|
* MPTCP_EVENT_REMOVED: token, rem_id
|
|
* An address has been lost by the peer.
|
|
*
|
|
* MPTCP_EVENT_SUB_ESTABLISHED: token, family, saddr4 | saddr6,
|
|
* daddr4 | daddr6, sport, dport, backup,
|
|
* if_idx [, error]
|
|
* A new subflow has been established. 'error' should not be set.
|
|
*
|
|
* MPTCP_EVENT_SUB_CLOSED: token, family, saddr4 | saddr6, daddr4 | daddr6,
|
|
* sport, dport, backup, if_idx [, error]
|
|
* A subflow has been closed. An error (copy of sk_err) could be set if an
|
|
* error has been detected for this subflow.
|
|
*
|
|
* MPTCP_EVENT_SUB_PRIORITY: token, family, saddr4 | saddr6, daddr4 | daddr6,
|
|
* sport, dport, backup, if_idx [, error]
|
|
* The priority of a subflow has changed. 'error' should not be set.
|
|
*/
|
|
enum mptcp_event_type {
|
|
MPTCP_EVENT_UNSPEC = 0,
|
|
MPTCP_EVENT_CREATED = 1,
|
|
MPTCP_EVENT_ESTABLISHED = 2,
|
|
MPTCP_EVENT_CLOSED = 3,
|
|
|
|
MPTCP_EVENT_ANNOUNCED = 6,
|
|
MPTCP_EVENT_REMOVED = 7,
|
|
|
|
MPTCP_EVENT_SUB_ESTABLISHED = 10,
|
|
MPTCP_EVENT_SUB_CLOSED = 11,
|
|
|
|
MPTCP_EVENT_SUB_PRIORITY = 13,
|
|
};
|
|
|
|
enum mptcp_event_attr {
|
|
MPTCP_ATTR_UNSPEC = 0,
|
|
|
|
MPTCP_ATTR_TOKEN, /* u32 */
|
|
MPTCP_ATTR_FAMILY, /* u16 */
|
|
MPTCP_ATTR_LOC_ID, /* u8 */
|
|
MPTCP_ATTR_REM_ID, /* u8 */
|
|
MPTCP_ATTR_SADDR4, /* be32 */
|
|
MPTCP_ATTR_SADDR6, /* struct in6_addr */
|
|
MPTCP_ATTR_DADDR4, /* be32 */
|
|
MPTCP_ATTR_DADDR6, /* struct in6_addr */
|
|
MPTCP_ATTR_SPORT, /* be16 */
|
|
MPTCP_ATTR_DPORT, /* be16 */
|
|
MPTCP_ATTR_BACKUP, /* u8 */
|
|
MPTCP_ATTR_ERROR, /* u8 */
|
|
MPTCP_ATTR_FLAGS, /* u16 */
|
|
MPTCP_ATTR_TIMEOUT, /* u32 */
|
|
MPTCP_ATTR_IF_IDX, /* s32 */
|
|
MPTCP_ATTR_RESET_REASON,/* u32 */
|
|
MPTCP_ATTR_RESET_FLAGS, /* u32 */
|
|
|
|
__MPTCP_ATTR_AFTER_LAST
|
|
};
|
|
|
|
#define MPTCP_ATTR_MAX (__MPTCP_ATTR_AFTER_LAST - 1)
|
|
|
|
/* MPTCP Reset reason codes, rfc8684 */
|
|
#define MPTCP_RST_EUNSPEC 0
|
|
#define MPTCP_RST_EMPTCP 1
|
|
#define MPTCP_RST_ERESOURCE 2
|
|
#define MPTCP_RST_EPROHIBIT 3
|
|
#define MPTCP_RST_EWQ2BIG 4
|
|
#define MPTCP_RST_EBADPERF 5
|
|
#define MPTCP_RST_EMIDDLEBOX 6
|
|
|
|
#endif /* _UAPI_MPTCP_H */
|