#ifndef _NETINET_MPTCP_VAR_H_
#define _NETINET_MPTCP_VAR_H_
#ifdef PRIVATE
#include <netinet/in.h>
#include <netinet/tcp.h>
#endif
#ifdef BSD_KERNEL_PRIVATE
#include <sys/queue.h>
#include <sys/protosw.h>
#include <kern/locks.h>
#include <mach/boolean.h>
#include <netinet/mp_pcb.h>
#include <netinet/tcp_var.h>
#include <os/log.h>
struct mpt_itf_info {
uint32_t ifindex;
uint32_t has_v4_conn:1,
has_v6_conn:1,
has_nat64_conn:1,
no_mptcp_support:1;
};
struct mptses {
struct mppcb *mpte_mppcb;
struct mptcb *mpte_mptcb;
TAILQ_HEAD(, mptopt) mpte_sopts;
TAILQ_HEAD(, mptsub) mpte_subflows;
#define MPTCP_MAX_NUM_SUBFLOWS 256
uint16_t mpte_numflows;
uint16_t mpte_nummpcapflows;
sae_associd_t mpte_associd;
sae_connid_t mpte_connid_last;
uint64_t mpte_time_target;
thread_call_t mpte_time_thread;
uint32_t mpte_last_cellicon_set;
uint32_t mpte_cellicon_increments;
union {
struct sockaddr _mpte_src;
struct sockaddr_in _mpte_src_v4;
struct sockaddr_in6 _mpte_src_v6;
} mpte_u_src;
#define mpte_src mpte_u_src._mpte_src
#define __mpte_src_v4 mpte_u_src._mpte_src_v4
#define __mpte_src_v6 mpte_u_src._mpte_src_v6
union {
struct sockaddr _mpte_dst;
struct sockaddr_in _mpte_dst_v4;
struct sockaddr_in6 _mpte_dst_v6;
} mpte_u_dst;
#define mpte_dst mpte_u_dst._mpte_dst
#define __mpte_dst_v4 mpte_u_dst._mpte_dst_v4
#define __mpte_dst_v6 mpte_u_dst._mpte_dst_v6
struct sockaddr_in mpte_dst_v4_nat64;
struct sockaddr_in mpte_dst_unicast_v4;
struct sockaddr_in6 mpte_dst_unicast_v6;
uint16_t mpte_alternate_port;
int mpte_epid;
uuid_t mpte_euuid;
struct mptsub *mpte_active_sub;
uint16_t mpte_flags;
#define MPTE_SND_REM_ADDR 0x01
#define MPTE_SVCTYPE_CHECKED 0x02
#define MPTE_FIRSTPARTY 0x04
#define MPTE_ACCESS_GRANTED 0x08
#define MPTE_FORCE_ENABLE 0x10
#define MPTE_IN_WORKLOOP 0x20
#define MPTE_WORKLOOP_RELAUNCH 0x40
#define MPTE_UNICAST_IP 0x80
#define MPTE_CELL_PROHIBITED 0x100
uint8_t mpte_svctype;
uint8_t mpte_lost_aid;
uint8_t mpte_addrid_last;
#define MPTE_ITFINFO_SIZE 4
uint32_t mpte_itfinfo_size;
struct mpt_itf_info _mpte_itfinfo[MPTE_ITFINFO_SIZE];
struct mpt_itf_info *mpte_itfinfo;
struct mbuf *mpte_reinjectq;
uint32_t mpte_subflow_switches;
uint32_t mpte_used_cell:1,
mpte_used_wifi:1,
mpte_initial_cell:1,
mpte_triggered_cell,
mpte_handshake_success:1;
struct mptcp_itf_stats mpte_itfstats[MPTCP_ITFSTATS_SIZE];
uint64_t mpte_init_txbytes __attribute__((aligned(8)));
uint64_t mpte_init_rxbytes __attribute__((aligned(8)));
};
static inline struct socket *
mptetoso(struct mptses *mpte)
{
return mpte->mpte_mppcb->mpp_socket;
}
static inline struct mptses *
mptompte(struct mppcb *mp)
{
return (struct mptses *)mp->mpp_pcbe;
}
static inline struct mptses *
mpsotompte(struct socket *so)
{
return mptompte(mpsotomppcb(so));
}
static inline boolean_t
mpp_try_lock(struct mppcb *mp)
{
if (!lck_mtx_try_lock(&mp->mpp_lock)) {
return false;
}
VERIFY(!(mp->mpp_flags & MPP_INSIDE_OUTPUT));
VERIFY(!(mp->mpp_flags & MPP_INSIDE_INPUT));
return true;
}
static inline void
mpp_lock(struct mppcb *mp)
{
lck_mtx_lock(&mp->mpp_lock);
VERIFY(!(mp->mpp_flags & MPP_INSIDE_OUTPUT));
VERIFY(!(mp->mpp_flags & MPP_INSIDE_INPUT));
}
static inline void
mpp_unlock(struct mppcb *mp)
{
VERIFY(!(mp->mpp_flags & MPP_INSIDE_OUTPUT));
VERIFY(!(mp->mpp_flags & MPP_INSIDE_INPUT));
lck_mtx_unlock(&mp->mpp_lock);
}
static inline lck_mtx_t *
mpp_getlock(struct mppcb *mp, int flags)
{
if (flags & PR_F_WILLUNLOCK) {
VERIFY(!(mp->mpp_flags & MPP_INSIDE_OUTPUT));
VERIFY(!(mp->mpp_flags & MPP_INSIDE_INPUT));
}
return &mp->mpp_lock;
}
static inline int
mptcp_subflow_cwnd_space(struct socket *so)
{
struct tcpcb *tp = sototcpcb(so);
int cwnd = (int)(MIN(tp->snd_wnd, tp->snd_cwnd) - (so->so_snd.sb_cc));
return MIN(cwnd, sbspace(&so->so_snd));
}
struct mptopt {
TAILQ_ENTRY(mptopt) mpo_entry;
uint32_t mpo_flags;
int mpo_level;
int mpo_name;
int mpo_intval;
};
#define MPOF_ATTACHED 0x1
#define MPOF_SUBFLOW_OK 0x2
#define MPOF_INTERIM 0x4
struct mptsub {
TAILQ_ENTRY(mptsub) mpts_entry;
uint32_t mpts_refcnt;
uint32_t mpts_flags;
long mpts_evctl;
sae_connid_t mpts_connid;
int mpts_oldintval;
struct mptses *mpts_mpte;
struct socket *mpts_socket;
struct sockaddr *mpts_src;
union {
struct sockaddr _mpts_dst;
struct sockaddr_in _mpts_dst_v4;
struct sockaddr_in6 _mpts_dst_v6;
} mpts_u_dst;
#define mpts_dst mpts_u_dst._mpts_dst
#define __mpts_dst_v4 mpts_u_dst._mpts_dst_v4
#define __mpts_dst_v6 mpts_u_dst._mpts_dst_v6
u_int32_t mpts_rel_seq;
u_int32_t mpts_iss;
u_int32_t mpts_ifscope;
uint32_t mpts_probesoon;
uint32_t mpts_probecnt;
uint32_t mpts_maxseg;
};
#define MPTSF_ATTACHED 0x00000001
#define MPTSF_CONNECTING 0x00000002
#define MPTSF_CONNECT_PENDING 0x00000004
#define MPTSF_CONNECTED 0x00000008
#define MPTSF_DISCONNECTING 0x00000010
#define MPTSF_DISCONNECTED 0x00000020
#define MPTSF_MP_CAPABLE 0x00000040
#define MPTSF_MP_READY 0x00000080
#define MPTSF_MP_DEGRADED 0x00000100
#define MPTSF_PREFERRED 0x00000200
#define MPTSF_SOPT_OLDVAL 0x00000400
#define MPTSF_SOPT_INPROG 0x00000800
#define MPTSF_FAILINGOVER 0x00001000
#define MPTSF_ACTIVE 0x00002000
#define MPTSF_MPCAP_CTRSET 0x00004000
#define MPTSF_CLOSED 0x00008000
#define MPTSF_TFO_REQD 0x00010000
#define MPTSF_CLOSE_REQD 0x00020000
#define MPTSF_INITIAL_SUB 0x00040000
#define MPTSF_READ_STALL 0x00080000
#define MPTSF_WRITE_STALL 0x00100000
#define MPTSF_FULLY_ESTABLISHED 0x00200000 * whether or not it supports MPTCP.
* No need for further middlebox-detection.
*/
#define MPTSF_CELLICON_SET 0x00400000
#define MPTSF_BITS \
"\020\1ATTACHED\2CONNECTING\3PENDING\4CONNECTED\5DISCONNECTING" \
"\6DISCONNECTED\7MP_CAPABLE\10MP_READY\11MP_DEGRADED" \
"\12PREFERRED\13SOPT_OLDVAL" \
"\14SOPT_INPROG\15FAILINGOVER\16ACTIVE\17MPCAP_CTRSET" \
"\20CLOSED\21TFO_REQD\22CLOSEREQD\23INITIALSUB\24READ_STALL" \
"\25WRITE_STALL\26CONFIRMED"
typedef enum mptcp_state {
MPTCPS_CLOSED = 0,
MPTCPS_LISTEN = 1,
MPTCPS_ESTABLISHED = 2,
MPTCPS_CLOSE_WAIT = 3,
MPTCPS_FIN_WAIT_1 = 4,
MPTCPS_CLOSING = 5,
MPTCPS_LAST_ACK = 6,
MPTCPS_FIN_WAIT_2 = 7,
MPTCPS_TIME_WAIT = 8,
MPTCPS_TERMINATE = 9,
} mptcp_state_t;
typedef u_int64_t mptcp_key_t;
typedef u_int32_t mptcp_token_t;
typedef u_int8_t mptcp_addr_id;
struct mptcp_subf_auth_entry {
LIST_ENTRY(mptcp_subf_auth_entry) msae_next;
u_int32_t msae_laddr_rand;
u_int32_t msae_raddr_rand;
mptcp_addr_id msae_laddr_id;
mptcp_addr_id msae_raddr_id;
};
struct mptcb {
struct mptses *mpt_mpte;
mptcp_state_t mpt_state;
uint32_t mpt_flags;
uint8_t mpt_version;
uint8_t mpt_peer_version;
u_short mpt_softerror;
mptcp_key_t mpt_localkey;
mptcp_key_t mpt_remotekey;
mptcp_token_t mpt_localtoken;
mptcp_token_t mpt_remotetoken;
int mpt_rxtshift;
uint64_t mpt_rxtstart;
uint64_t mpt_rtseq;
uint64_t mpt_timewait;
uint32_t mpt_timer_vals;
uint64_t mpt_snduna;
uint64_t mpt_sndnxt;
uint64_t mpt_sndmax;
uint64_t mpt_local_idsn;
uint32_t mpt_sndwnd;
uint64_t mpt_sndwl1;
uint64_t mpt_sndwl2;
uint64_t mpt_rcvnxt;
uint64_t mpt_remote_idsn;
uint64_t mpt_rcvadv;
uint32_t mpt_rcvwnd;
LIST_HEAD(, mptcp_subf_auth_entry) mpt_subauth_list;
uint64_t mpt_dsn_at_csum_fail;
uint32_t mpt_ssn_at_csum_fail;
#define MPT_GC_TICKS (30)
#define MPT_GC_TICKS_FAST (10)
int32_t mpt_gc_ticks;
uint32_t mpt_notsent_lowat;
struct tsegqe_head mpt_segq;
uint32_t mpt_reassqlen;
};
#define MPTCPF_CHECKSUM 0x001
#define MPTCPF_FALLBACK_TO_TCP 0x002
#define MPTCPF_JOIN_READY 0x004
#define MPTCPF_RECVD_MPFAIL 0x008
#define MPTCPF_SND_64BITDSN 0x010
#define MPTCPF_SND_64BITACK 0x020
#define MPTCPF_RCVD_64BITACK 0x040
#define MPTCPF_POST_FALLBACK_SYNC 0x080
#define MPTCPF_FALLBACK_HEURISTIC 0x100
#define MPTCPF_HEURISTIC_TRAC 0x200
#define MPTCPF_REASS_INPROG 0x400
#define MPTCPF_UNICAST_IP 0x800
#define MPTCPF_BITS \
"\020\1CHECKSUM\2FALLBACK_TO_TCP\3JOIN_READY\4RECVD_MPFAIL" \
"\5SND_64BITDSN\6SND_64BITACK\7RCVD_64BITACK\10POST_FALLBACK_SYNC" \
"\11FALLBACK_HEURISTIC\12HEURISTIC_TRAC\13REASS_INPROG"
#define MPTT_REXMT 0x01
#define MPTT_TW 0x02
#define MPTT_FASTCLOSE 0x04
#define MPCE_CLOSE 0x1
#define MPCE_RECV_DATA_ACK 0x2
#define MPCE_RECV_DATA_FIN 0x4
static inline struct mptcb *
tptomptp(struct tcpcb *tp)
{
return tp->t_mptcb;
}
struct mpp_mtp {
struct mppcb mpp;
struct mptses mpp_ses;
struct mptcb mtcb;
};
#ifdef SYSCTL_DECL
SYSCTL_DECL(_net_inet_mptcp);
#endif
extern struct mppcbinfo mtcbinfo;
extern struct pr_usrreqs mptcp_usrreqs;
extern os_log_t mptcp_log_handle;
#define SHA1_TRUNCATED 8
#define MPTCP_LOGLVL_NONE 0x0
#define MPTCP_LOGLVL_ERR 0x1
#define MPTCP_LOGLVL_LOG 0x2
#define MPTCP_LOGLVL_VERBOSE 0x4
#define MPTCP_NO_DBG 0x00
#define MPTCP_STATE_DBG 0x01
#define MPTCP_SOCKET_DBG 0x02
#define MPTCP_SENDER_DBG 0x04
#define MPTCP_RECEIVER_DBG 0x08
#define MPTCP_EVENTS_DBG 0x10
#define MPTCP_DATASEQ_LOW32_MASK (0xffffffff)
#define MPTCP_DATASEQ_LOW32(seq) (seq & MPTCP_DATASEQ_LOW32_MASK)
#define MPTCP_DATASEQ_HIGH32_MASK (0xffffffff00000000)
#define MPTCP_DATASEQ_HIGH32(seq) (seq & MPTCP_DATASEQ_HIGH32_MASK)
#define MPTCP_DATAACK_LOW32_MASK (0xffffffff)
#define MPTCP_DATAACK_LOW32(ack) (ack & MPTCP_DATAACK_LOW32_MASK)
#define MPTCP_DATAACK_HIGH32_MASK (0xffffffff00000000)
#define MPTCP_DATAACK_HIGH32(ack) (ack & MPTCP_DATAACK_HIGH32_MASK)
#define MPTCP_EXTEND_DSN(x, y, z) { \
if ((MPTCP_DATASEQ_LOW32(x) > y) && \
((((u_int32_t)MPTCP_DATASEQ_LOW32(x)) - (u_int32_t)y) >= \
(u_int32_t)(1U << 31))) { \
\
z = MPTCP_DATASEQ_HIGH32(x) + 0x100000000; \
z |= y; \
} else if ((MPTCP_DATASEQ_LOW32(x) < y) && \
(((u_int32_t)y - \
((u_int32_t)MPTCP_DATASEQ_LOW32(x))) >= \
(u_int32_t)(1U << 31))) { \
\
z = MPTCP_DATASEQ_HIGH32(x) - 0x100000000; \
z |= y; \
} else { \
z = MPTCP_DATASEQ_HIGH32(x) | y; \
} \
}
#define mptcplog(x, y, z) do { \
if ((mptcp_dbg_area & y) && (mptcp_dbg_level & z)) \
log x; \
} while (0)
extern int mptcp_enable;
extern int mptcp_mpcap_retries;
extern int mptcp_join_retries;
extern int mptcp_dss_csum;
extern int mptcp_fail_thresh;
extern int mptcp_subflow_keeptime;
extern uint32_t mptcp_dbg_level;
extern uint32_t mptcp_dbg_area;
extern int mptcp_developer_mode;
extern uint32_t mptcp_cellicon_refcount;
#define MPTCP_CELLICON_TOGGLE_RATE (5 * TCP_RETRANSHZ)
extern int tcp_jack_rxmt;
__BEGIN_DECLS
extern void mptcp_init(struct protosw *, struct domain *);
extern int mptcp_ctloutput(struct socket *, struct sockopt *);
extern int mptcp_session_create(struct mppcb *);
extern boolean_t mptcp_ok_to_create_subflows(struct mptcb *mp_tp);
extern void mptcp_check_subflows_and_add(struct mptses *mpte);
extern void mptcp_check_subflows_and_remove(struct mptses *mpte);
extern void mptcpstats_inc_switch(struct mptses *mpte, const struct mptsub *mpts);
extern void mptcpstats_update(struct mptcp_itf_stats *stats, const struct mptsub *mpts);
extern int mptcpstats_get_index_by_ifindex(struct mptcp_itf_stats *stats, u_short ifindex, boolean_t create);
extern struct mptses *mptcp_drop(struct mptses *mpte, struct mptcb *mp_tp, u_short errno);
extern struct mptses *mptcp_close(struct mptses *, struct mptcb *);
extern int mptcp_lock(struct socket *, int, void *);
extern int mptcp_unlock(struct socket *, int, void *);
extern lck_mtx_t *mptcp_getlock(struct socket *, int);
extern void mptcp_subflow_workloop(struct mptses *);
extern void mptcp_sched_create_subflows(struct mptses *);
extern void mptcp_finish_usrclosed(struct mptses *mpte);
extern struct mptopt *mptcp_sopt_alloc(zalloc_flags_t);
extern const char *mptcp_sopt2str(int, int);
extern void mptcp_sopt_free(struct mptopt *);
extern void mptcp_sopt_insert(struct mptses *, struct mptopt *);
extern void mptcp_sopt_remove(struct mptses *, struct mptopt *);
extern struct mptopt *mptcp_sopt_find(struct mptses *, struct sockopt *);
extern int mptcp_subflow_add(struct mptses *, struct sockaddr *,
struct sockaddr *, uint32_t, sae_connid_t *);
extern void mptcp_subflow_del(struct mptses *, struct mptsub *);
extern void mptcp_handle_input(struct socket *so);
#define MPTCP_SUBOUT_PROBING 0x01
extern int mptcp_subflow_output(struct mptses *mpte, struct mptsub *mpts, int flags);
extern void mptcp_clean_reinjectq(struct mptses *mpte);
extern void mptcp_subflow_shutdown(struct mptses *, struct mptsub *);
extern void mptcp_subflow_disconnect(struct mptses *, struct mptsub *);
extern int mptcp_subflow_sosetopt(struct mptses *, struct mptsub *,
struct mptopt *);
extern int mptcp_subflow_sogetopt(struct mptses *, struct socket *,
struct mptopt *);
extern void mptcp_input(struct mptses *, struct mbuf *);
extern boolean_t mptcp_can_send_more(struct mptcb *mp_tp, boolean_t ignore_reinject);
extern int mptcp_output(struct mptses *);
extern void mptcp_close_fsm(struct mptcb *, uint32_t);
extern void mptcp_hmac_sha1(mptcp_key_t, mptcp_key_t, u_int32_t, u_int32_t,
u_char*);
extern void mptcp_get_hmac(mptcp_addr_id, struct mptcb *, u_char *);
extern void mptcp_get_rands(mptcp_addr_id, struct mptcb *, u_int32_t *,
u_int32_t *);
extern void mptcp_set_raddr_rand(mptcp_addr_id, struct mptcb *, mptcp_addr_id,
u_int32_t);
extern int mptcp_init_remote_parms(struct mptcb *);
extern boolean_t mptcp_ok_to_keepalive(struct mptcb *);
extern void mptcp_insert_dsn(struct mppcb *, struct mbuf *);
extern void mptcp_output_getm_dsnmap32(struct socket *so, int off,
uint32_t *dsn, uint32_t *relseq,
uint16_t *data_len, uint16_t *dss_csum);
extern void mptcp_output_getm_dsnmap64(struct socket *so, int off,
uint64_t *dsn, uint32_t *relseq,
uint16_t *data_len, uint16_t *dss_csum);
extern void mptcp_act_on_txfail(struct socket *);
extern struct mptsub *mptcp_get_subflow(struct mptses *mpte, struct mptsub **preferred);
extern int mptcp_get_map_for_dsn(struct socket *so, uint64_t dsn_fail, uint32_t *tcp_seq);
extern int32_t mptcp_adj_sendlen(struct socket *so, int32_t off);
extern void mptcp_sbrcv_grow(struct mptcb *mp_tp);
extern int32_t mptcp_sbspace(struct mptcb *);
extern void mptcp_notify_mpready(struct socket *);
extern void mptcp_notify_mpfail(struct socket *);
extern void mptcp_notify_close(struct socket *);
extern boolean_t mptcp_no_rto_spike(struct socket*);
extern int mptcp_set_notsent_lowat(struct mptses *mpte, int optval);
extern u_int32_t mptcp_get_notsent_lowat(struct mptses *mpte);
extern int mptcp_notsent_lowat_check(struct socket *so);
extern void mptcp_ask_symptoms(struct mptses *mpte);
extern void mptcp_control_register(void);
extern int mptcp_is_wifi_unusable_for_session(struct mptses *mpte);
extern boolean_t symptoms_is_wifi_lossy(void);
extern void mptcp_ask_for_nat64(struct ifnet *ifp);
extern void mptcp_session_necp_cb(void *, int, uint32_t, uint32_t, bool *);
extern struct sockaddr *mptcp_get_session_dst(struct mptses *mpte,
boolean_t has_v6, boolean_t has_v4);
extern void mptcp_set_restrictions(struct socket *mp_so);
extern void mptcp_clear_cellicon(void);
extern void mptcp_unset_cellicon(struct mptses *mpte, struct mptsub *mpts, uint32_t val);
extern void mptcp_reset_rexmit_state(struct tcpcb *tp);
extern void mptcp_reset_keepalive(struct tcpcb *tp);
extern int mptcp_validate_csum(struct tcpcb *tp, struct mbuf *m, uint64_t dsn,
uint32_t sseq, uint16_t dlen, uint16_t csum, int dfin);
__END_DECLS
#endif
#ifdef PRIVATE
typedef struct mptcp_flow {
uint64_t flow_len;
uint64_t flow_tcpci_offset;
uint32_t flow_flags;
sae_connid_t flow_cid;
struct sockaddr_storage flow_src;
struct sockaddr_storage flow_dst;
uint32_t flow_relseq;
int32_t flow_soerror;
uint32_t flow_probecnt;
conninfo_tcp_t flow_ci;
} mptcp_flow_t;
typedef struct conninfo_mptcp {
uint64_t mptcpci_len;
uint64_t mptcpci_flow_offset;
uint64_t mptcpci_nflows;
uint32_t mptcpci_state;
uint32_t mptcpci_mpte_flags;
uint32_t mptcpci_flags;
uint32_t mptcpci_ltoken;
uint32_t mptcpci_rtoken;
uint32_t mptcpci_notsent_lowat;
uint64_t mptcpci_snduna;
uint64_t mptcpci_sndnxt;
uint64_t mptcpci_sndmax;
uint64_t mptcpci_lidsn;
uint32_t mptcpci_sndwnd;
uint64_t mptcpci_rcvnxt;
uint64_t mptcpci_rcvatmark;
uint64_t mptcpci_ridsn;
uint32_t mptcpci_rcvwnd;
uint8_t mptcpci_mpte_addrid;
mptcp_flow_t mptcpci_flows[1];
} conninfo_mptcp_t;
#define MPTCP_KERN_CTL_NAME "com.apple.network.advisory"
typedef struct symptoms_advisory {
union {
uint32_t sa_nwk_status_int;
struct {
union {
#define SYMPTOMS_ADVISORY_NOCOMMENT 0x0000
#define SYMPTOMS_ADVISORY_USEAPP 0xFFFF
uint16_t sa_nwk_status;
struct {
#define SYMPTOMS_ADVISORY_WIFI_BAD 0x01
#define SYMPTOMS_ADVISORY_WIFI_OK 0x02
uint8_t sa_wifi_status;
#define SYMPTOMS_ADVISORY_CELL_BAD 0x01
#define SYMPTOMS_ADVISORY_CELL_OK 0x02
uint8_t sa_cell_status;
};
};
uint16_t sa_unused;
};
};
} symptoms_advisory_t;
#define MPTCP_TARGET_BASED_RSSI_THRESHOLD -75
struct mptcp_symptoms_answer {
struct symptoms_advisory advisory;
uuid_t uuid;
int32_t rssi;
};
struct mptcp_symptoms_ask_uuid {
uint32_t cmd;
#define MPTCP_SYMPTOMS_ASK_UUID 1
uuid_t uuid;
uint32_t priority;
#define MPTCP_SYMPTOMS_UNKNOWN 0
#define MPTCP_SYMPTOMS_BACKGROUND 1
#define MPTCP_SYMPTOMS_FOREGROUND 2
};
struct kev_mptcp_data {
int value;
};
#endif
#endif