diff options
Diffstat (limited to 'sys/netinet/tcp_var.h')
| -rw-r--r-- | sys/netinet/tcp_var.h | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/sys/netinet/tcp_var.h b/sys/netinet/tcp_var.h index 2e5b3fa..ddcfd3c 100644 --- a/sys/netinet/tcp_var.h +++ b/sys/netinet/tcp_var.h @@ -213,8 +213,6 @@ struct syncache { struct tcpcb *sc_tp; /* tcb for listening socket */ struct mbuf *sc_ipopts; /* source route */ struct in_conninfo sc_inc; /* addresses */ -#define sc_route sc_inc.inc_route -#define sc_route6 sc_inc.inc6_route u_int32_t sc_tsrecent; tcp_cc sc_cc_send; /* holds CC or CCnew */ tcp_cc sc_cc_recv; @@ -232,7 +230,6 @@ struct syncache { #define SCF_TIMESTAMP 0x04 /* negotiated timestamps */ #define SCF_CC 0x08 /* negotiated CC */ #define SCF_UNREACH 0x10 /* icmp unreachable received */ -#define SCF_KEEPROUTE 0x20 /* keep cloned route */ TAILQ_ENTRY(syncache) sc_hash; TAILQ_ENTRY(syncache) sc_timerq; }; @@ -242,6 +239,17 @@ struct syncache_head { u_int sch_length; }; +struct hc_metrics_lite { /* must stay in sync with hc_metrics */ + u_long rmx_mtu; /* MTU for this path */ + u_long rmx_ssthresh; /* outbound gateway buffer limit */ + u_long rmx_rtt; /* estimated round trip time */ + u_long rmx_rttvar; /* estimated rtt variance */ + u_long rmx_bandwidth; /* estimated bandwidth */ + u_long rmx_cwnd; /* congestion window */ + u_long rmx_sendpipe; /* outbound delay-bandwidth product */ + u_long rmx_recvpipe; /* inbound delay-bandwidth product */ +}; + struct tcptw { struct inpcb *tw_inpcb; /* XXX back pointer to internet pcb */ tcp_seq snd_nxt; @@ -260,8 +268,7 @@ struct tcptw { }; /* - * The TAO cache entry which is stored in the protocol family specific - * portion of the route metrics. + * The TAO cache entry which is stored in the tcp hostcache. */ struct rmxp_tao { tcp_cc tao_cc; /* latest CC in valid SYN */ @@ -274,7 +281,6 @@ struct rmxp_tao { #define TAOF_UNDEF 0 /* we don't know yet */ #endif /* notyet */ }; -#define rmx_taop(r) ((struct rmxp_tao *)(r).rmx_filler) #define intotcpcb(ip) ((struct tcpcb *)(ip)->inp_ppcb) #define intotw(ip) ((struct tcptw *)(ip)->inp_ppcb) @@ -401,6 +407,9 @@ struct tcpstat { u_long tcps_sc_zonefail; /* zalloc() failed */ u_long tcps_sc_sendcookie; /* SYN cookie sent */ u_long tcps_sc_recvcookie; /* SYN cookie received */ + + u_long tcps_hc_added; /* entry added to hostcache */ + u_long tcps_hc_bucketoverflow; /* hostcache per bucket limit hit */ }; /* @@ -451,6 +460,7 @@ struct xtcpcb { { "pcblist", CTLTYPE_STRUCT }, \ { "delacktime", CTLTYPE_INT }, \ { "v6mssdflt", CTLTYPE_INT }, \ + { "maxid", CTLTYPE_INT }, \ } @@ -482,12 +492,12 @@ struct tcpcb * tcp_drop(struct tcpcb *, int); void tcp_drain(void); void tcp_fasttimo(void); -struct rmxp_tao * - tcp_gettaocache(struct in_conninfo *); void tcp_init(void); void tcp_input(struct mbuf *, int); +u_long tcp_maxmtu(struct in_conninfo *); +u_long tcp_maxmtu6(struct in_conninfo *); void tcp_mss(struct tcpcb *, int); -int tcp_mssopt(struct tcpcb *); +int tcp_mssopt(struct in_conninfo *); struct inpcb * tcp_drop_syn_sent(struct inpcb *, int); struct inpcb * @@ -500,8 +510,6 @@ struct inpcb * void tcp_respond(struct tcpcb *, void *, struct tcphdr *, struct mbuf *, tcp_seq, tcp_seq, int); int tcp_twrespond(struct tcptw *, struct socket *, struct mbuf *, int); -struct rtentry * - tcp_rtlookup(struct in_conninfo *); void tcp_setpersist(struct tcpcb *); void tcp_slowtimo(void); struct tcptemp * @@ -519,6 +527,20 @@ int syncache_add(struct in_conninfo *, struct tcpopt *, struct tcphdr *, struct socket **, struct mbuf *); void syncache_chkrst(struct in_conninfo *, struct tcphdr *); void syncache_badack(struct in_conninfo *); +/* + * All tcp_hc_* functions are IPv4 and IPv6 (via in_conninfo) + */ +void tcp_hc_init(void); +void tcp_hc_get(struct in_conninfo *, struct hc_metrics_lite *); +u_long tcp_hc_getmtu(struct in_conninfo *); +void tcp_hc_gettao(struct in_conninfo *, struct rmxp_tao *); +void tcp_hc_updatemtu(struct in_conninfo *, u_long); +void tcp_hc_update(struct in_conninfo *, struct hc_metrics_lite *); +void tcp_hc_updatetao(struct in_conninfo *, int, tcp_cc, u_short); +/* update which tao field */ +#define TCP_HC_TAO_CC 0x1 +#define TCP_HC_TAO_CCSENT 0x2 +#define TCP_HC_TAO_MSSOPT 0x3 extern struct pr_usrreqs tcp_usrreqs; extern u_long tcp_sendspace; |
