diff options
Diffstat (limited to 'include/uapi/linux/mptcp.h')
| -rw-r--r-- | include/uapi/linux/mptcp.h | 158 |
1 files changed, 90 insertions, 68 deletions
diff --git a/include/uapi/linux/mptcp.h b/include/uapi/linux/mptcp.h index 9762660df741..67d015df8893 100644 --- a/include/uapi/linux/mptcp.h +++ b/include/uapi/linux/mptcp.h @@ -2,8 +2,16 @@ #ifndef _UAPI_MPTCP_H #define _UAPI_MPTCP_H +#ifndef __KERNEL__ +#include <netinet/in.h> /* for sockaddr_in and sockaddr_in6 */ +#include <sys/socket.h> /* for struct sockaddr */ +#endif + #include <linux/const.h> #include <linux/types.h> +#include <linux/in.h> /* for sockaddr_in */ +#include <linux/in6.h> /* for sockaddr_in6 */ +#include <linux/socket.h> /* for sockaddr_storage and sa_family */ #define MPTCP_SUBFLOW_FLAG_MCAP_REM _BITUL(0) #define MPTCP_SUBFLOW_FLAG_MCAP_LOC _BITUL(1) @@ -15,80 +23,20 @@ #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_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_EV_GRP_NAME "mptcp_pm_events" -#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_AFTER_LAST -}; +#include <linux/mptcp_pm.h> #define MPTCP_INFO_FLAG_FALLBACK _BITUL(0) #define MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED _BITUL(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) +#define MPTCP_PM_ADDR_FLAG_FULLMESH (1 << 3) +#define MPTCP_PM_ADDR_FLAG_IMPLICIT (1 << 4) + struct mptcp_info { __u8 mptcpi_subflows; __u8 mptcpi_add_addr_signal; @@ -101,6 +49,80 @@ struct mptcp_info { __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; + __u32 mptcpi_retransmits; + __u64 mptcpi_bytes_retrans; + __u64 mptcpi_bytes_sent; + __u64 mptcpi_bytes_received; + __u64 mptcpi_bytes_acked; + __u8 mptcpi_subflows_total; + __u8 reserved[3]; + __u32 mptcpi_last_data_sent; + __u32 mptcpi_last_data_recv; + __u32 mptcpi_last_ack_recv; }; +/* 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 + +struct mptcp_subflow_data { + __u32 size_subflow_data; /* size of this structure in userspace */ + __u32 num_subflows; /* must be 0, set by kernel */ + __u32 size_kernel; /* must be 0, set by kernel */ + __u32 size_user; /* size of one element in data[] */ +} __attribute__((aligned(8))); + +struct mptcp_subflow_addrs { + union { + __kernel_sa_family_t sa_family; + struct sockaddr sa_local; + struct sockaddr_in sin_local; + struct sockaddr_in6 sin6_local; + struct __kernel_sockaddr_storage ss_local; + }; + union { + struct sockaddr sa_remote; + struct sockaddr_in sin_remote; + struct sockaddr_in6 sin6_remote; + struct __kernel_sockaddr_storage ss_remote; + }; +}; + +struct mptcp_subflow_info { + __u32 id; + struct mptcp_subflow_addrs addrs; +}; + +struct mptcp_full_info { + __u32 size_tcpinfo_kernel; /* must be 0, set by kernel */ + __u32 size_tcpinfo_user; + __u32 size_sfinfo_kernel; /* must be 0, set by kernel */ + __u32 size_sfinfo_user; + __u32 num_subflows; /* must be 0, set by kernel (real subflow count) */ + __u32 size_arrays_user; /* max subflows that userspace is interested in; + * the buffers at subflow_info/tcp_info + * are respectively at least: + * size_arrays * size_sfinfo_user + * size_arrays * size_tcpinfo_user + * bytes wide + */ + __aligned_u64 subflow_info; + __aligned_u64 tcp_info; + struct mptcp_info mptcp_info; +}; + +/* MPTCP socket options */ +#define MPTCP_INFO 1 +#define MPTCP_TCPINFO 2 +#define MPTCP_SUBFLOW_ADDRS 3 +#define MPTCP_FULL_INFO 4 + #endif /* _UAPI_MPTCP_H */ |