mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
synced 2026-04-18 11:33:36 -04:00
37712d84df
A few variables linked to the in-kernel Path-Manager are confusing, and it would help current and future developers, to clarify them. One of them is 'add_addr_accept_max', which in fact represents the limit of ADD_ADDR that can be accepted: the limit set via 'ip mptcp limit add_addr_accepted X' for example. It is not linked to the maximum number of accepted ADD_ADDR. While at it, add an additional name for the corresponding variable in MPTCP INFO: mptcpi_limit_add_addr_accepted. Not to break the current uAPI, the new name is added as a 'define' pointing to the former name. This will then also help userspace devs. No functional changes intended. Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250925-net-next-mptcp-c-flag-laminar-v1-8-ad126cc47c6b@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
136 lines
4.1 KiB
C
136 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
|
|
#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)
|
|
#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)
|
|
|
|
#define MPTCP_PM_CMD_GRP_NAME "mptcp_pm_cmds"
|
|
#define MPTCP_PM_EV_GRP_NAME "mptcp_pm_events"
|
|
|
|
#include <linux/mptcp_pm.h>
|
|
|
|
#define MPTCP_INFO_FLAG_FALLBACK _BITUL(0)
|
|
#define MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED _BITUL(1)
|
|
|
|
#define MPTCP_PM_EV_FLAG_DENY_JOIN_ID0 _BITUL(0)
|
|
#define MPTCP_PM_EV_FLAG_SERVER_SIDE _BITUL(1)
|
|
|
|
#define MPTCP_PM_ADDR_FLAG_SIGNAL _BITUL(0)
|
|
#define MPTCP_PM_ADDR_FLAG_SUBFLOW _BITUL(1)
|
|
#define MPTCP_PM_ADDR_FLAG_BACKUP _BITUL(2)
|
|
#define MPTCP_PM_ADDR_FLAG_FULLMESH _BITUL(3)
|
|
#define MPTCP_PM_ADDR_FLAG_IMPLICIT _BITUL(4)
|
|
|
|
struct mptcp_info {
|
|
__u8 mptcpi_subflows;
|
|
#define mptcpi_extra_subflows mptcpi_subflows
|
|
__u8 mptcpi_add_addr_signal;
|
|
__u8 mptcpi_add_addr_accepted;
|
|
__u8 mptcpi_subflows_max;
|
|
#define mptcpi_limit_extra_subflows mptcpi_subflows_max
|
|
__u8 mptcpi_add_addr_signal_max;
|
|
#define mptcpi_endp_signal_max mptcpi_add_addr_signal_max
|
|
__u8 mptcpi_add_addr_accepted_max;
|
|
#define mptcpi_limit_add_addr_accepted 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;
|
|
__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 */
|