diff options
Diffstat (limited to 'freebsd/sys/netinet/tcp_timer.h')
| -rw-r--r-- | freebsd/sys/netinet/tcp_timer.h | 39 |
1 files changed, 30 insertions, 9 deletions
diff --git a/freebsd/sys/netinet/tcp_timer.h b/freebsd/sys/netinet/tcp_timer.h index 0da58fd8..bb78062d 100644 --- a/freebsd/sys/netinet/tcp_timer.h +++ b/freebsd/sys/netinet/tcp_timer.h @@ -76,9 +76,8 @@ #define TCPTV_SRTTBASE 0 /* base roundtrip time; if 0, no idea yet */ #define TCPTV_RTOBASE ( 3*hz) /* assumed RTO if no info */ -#define TCPTV_SRTTDFLT ( 3*hz) /* assumed RTT if no info */ -#define TCPTV_PERSMIN ( 5*hz) /* retransmit persistence */ +#define TCPTV_PERSMIN ( 5*hz) /* minimum persist interval */ #define TCPTV_PERSMAX ( 60*hz) /* maximum persist interval */ #define TCPTV_KEEP_INIT ( 75*hz) /* initial connect keepalive */ @@ -122,7 +121,7 @@ #ifdef TCPTIMERS static const char *tcptimers[] = - { "REXMT", "PERSIST", "KEEP", "2MSL" }; + { "REXMT", "PERSIST", "KEEP", "2MSL", "DELACK" }; #endif /* @@ -146,12 +145,27 @@ struct tcp_timer { struct callout tt_keep; /* keepalive */ struct callout tt_2msl; /* 2*msl TIME_WAIT timer */ struct callout tt_delack; /* delayed ACK timer */ + uint32_t tt_flags; /* Timers flags */ + uint32_t tt_draincnt; /* Count being drained */ }; -#define TT_DELACK 0x01 -#define TT_REXMT 0x02 -#define TT_PERSIST 0x04 -#define TT_KEEP 0x08 -#define TT_2MSL 0x10 + +/* + * Flags for the tt_flags field. + */ +#define TT_DELACK 0x0001 +#define TT_REXMT 0x0002 +#define TT_PERSIST 0x0004 +#define TT_KEEP 0x0008 +#define TT_2MSL 0x0010 +#define TT_MASK (TT_DELACK|TT_REXMT|TT_PERSIST|TT_KEEP|TT_2MSL) + +#define TT_DELACK_RST 0x0100 +#define TT_REXMT_RST 0x0200 +#define TT_PERSIST_RST 0x0400 +#define TT_KEEP_RST 0x0800 +#define TT_2MSL_RST 0x1000 + +#define TT_STOPPED 0x00010000 #define TP_KEEPINIT(tp) ((tp)->t_keepinit ? (tp)->t_keepinit : tcp_keepinit) #define TP_KEEPIDLE(tp) ((tp)->t_keepidle ? (tp)->t_keepidle : tcp_keepidle) @@ -159,6 +173,8 @@ struct tcp_timer { #define TP_KEEPCNT(tp) ((tp)->t_keepcnt ? (tp)->t_keepcnt : tcp_keepcnt) #define TP_MAXIDLE(tp) (TP_KEEPCNT(tp) * TP_KEEPINTVL(tp)) +extern int tcp_persmin; /* minimum persist interval */ +extern int tcp_persmax; /* maximum persist interval */ extern int tcp_keepinit; /* time to establish connection */ extern int tcp_keepidle; /* time before keepalive probes begin */ extern int tcp_keepintvl; /* time between keepalive probes */ @@ -170,14 +186,19 @@ extern int tcp_rexmit_slop; extern int tcp_msl; extern int tcp_ttl; /* time to live for TCP segs */ extern int tcp_backoff[]; +extern int tcp_syn_backoff[]; extern int tcp_finwait2_timeout; extern int tcp_fast_finwait2_recycle; +int tcp_inpinfo_lock_add(struct inpcb *inp); +void tcp_inpinfo_lock_del(struct inpcb *inp, struct tcpcb *tp); + void tcp_timer_init(void); void tcp_timer_2msl(void *xtp); +void tcp_timer_discard(void *); struct tcptw * - tcp_tw_2msl_scan(int _reuse); /* XXX temporary */ + tcp_tw_2msl_scan(int reuse); /* XXX temporary? */ void tcp_timer_keep(void *xtp); void tcp_timer_persist(void *xtp); void tcp_timer_rexmt(void *xtp); |