-/* XXX
- * We want to avoid doing m_pullup on incoming packets but that
- * means avoiding dtom on the tcp reassembly code. That in turn means
- * keeping an mbuf pointer in the reassembly queue (since we might
- * have a cluster). As a quick hack, the source & destination
- * port numbers (which are no longer needed once we've located the
- * tcpcb) are overlayed with an mbuf pointer.
- */
-#if SIZEOF_CHAR_P == 4
-typedef struct mbuf *mbufp_32;
-#else
-typedef u_int32_t mbufp_32;
-#endif
-#define REASS_MBUF(ti) (*(mbufp_32 *)&((ti)->ti_t))
-
-/*
- * TCP statistics.
- * Many of these should be kept per connection,
- * but that's inconvenient at the moment.
- */
-struct tcpstat {
- u_long tcps_connattempt; /* connections initiated */
- u_long tcps_accepts; /* connections accepted */
- u_long tcps_connects; /* connections established */
- u_long tcps_drops; /* connections dropped */
- u_long tcps_conndrops; /* embryonic connections dropped */
- u_long tcps_closed; /* conn. closed (includes drops) */
- u_long tcps_segstimed; /* segs where we tried to get rtt */
- u_long tcps_rttupdated; /* times we succeeded */
- u_long tcps_delack; /* delayed acks sent */
- u_long tcps_timeoutdrop; /* conn. dropped in rxmt timeout */
- u_long tcps_rexmttimeo; /* retransmit timeouts */
- u_long tcps_persisttimeo; /* persist timeouts */
- u_long tcps_keeptimeo; /* keepalive timeouts */
- u_long tcps_keepprobe; /* keepalive probes sent */
- u_long tcps_keepdrops; /* connections dropped in keepalive */
-
- u_long tcps_sndtotal; /* total packets sent */
- u_long tcps_sndpack; /* data packets sent */
- u_long tcps_sndbyte; /* data bytes sent */
- u_long tcps_sndrexmitpack; /* data packets retransmitted */
- u_long tcps_sndrexmitbyte; /* data bytes retransmitted */
- u_long tcps_sndacks; /* ack-only packets sent */
- u_long tcps_sndprobe; /* window probes sent */
- u_long tcps_sndurg; /* packets sent with URG only */
- u_long tcps_sndwinup; /* window update-only packets sent */
- u_long tcps_sndctrl; /* control (SYN|FIN|RST) packets sent */
-
- u_long tcps_rcvtotal; /* total packets received */
- u_long tcps_rcvpack; /* packets received in sequence */
- u_long tcps_rcvbyte; /* bytes received in sequence */
- u_long tcps_rcvbadsum; /* packets received with ccksum errs */
- u_long tcps_rcvbadoff; /* packets received with bad offset */
-/* u_long tcps_rcvshort; */ /* packets received too short */
- u_long tcps_rcvduppack; /* duplicate-only packets received */
- u_long tcps_rcvdupbyte; /* duplicate-only bytes received */
- u_long tcps_rcvpartduppack; /* packets with some duplicate data */
- u_long tcps_rcvpartdupbyte; /* dup. bytes in part-dup. packets */
- u_long tcps_rcvoopack; /* out-of-order packets received */
- u_long tcps_rcvoobyte; /* out-of-order bytes received */
- u_long tcps_rcvpackafterwin; /* packets with data after window */
- u_long tcps_rcvbyteafterwin; /* bytes rcvd after window */
- u_long tcps_rcvafterclose; /* packets rcvd after "close" */
- u_long tcps_rcvwinprobe; /* rcvd window probe packets */
- u_long tcps_rcvdupack; /* rcvd duplicate acks */
- u_long tcps_rcvacktoomuch; /* rcvd acks for unsent data */
- u_long tcps_rcvackpack; /* rcvd ack packets */
- u_long tcps_rcvackbyte; /* bytes acked by rcvd acks */
- u_long tcps_rcvwinupd; /* rcvd window update packets */
-/* u_long tcps_pawsdrop; */ /* segments dropped due to PAWS */
- u_long tcps_predack; /* times hdr predict ok for acks */
- u_long tcps_preddat; /* times hdr predict ok for data pkts */
- u_long tcps_socachemiss; /* tcp_last_so misses */
- u_long tcps_didnuttin; /* Times tcp_output didn't do anything XXX */
-};
-
-extern struct tcpstat tcpstat; /* tcp statistics */
-extern u_int32_t tcp_now; /* for RFC 1323 timestamps */
-