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[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc1/] [newlib/] [libc/] [sys/] [linux/] [include/] [netinet/] [tcp_var.h] - Blame information for rev 345

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/*
 * Copyright (c) 1982, 1986, 1993, 1994, 1995
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)tcp_var.h   8.4 (Berkeley) 5/24/95
 * $FreeBSD: src/sys/netinet/tcp_var.h,v 1.76 2002/03/19 21:25:46 alfred Exp $
 */
 
#ifndef _NETINET_TCP_VAR_H_
#define _NETINET_TCP_VAR_H_
 
#include <netinet/in_pcb.h>             /* needed for in_conninfo, inp_gen_t */
 
/*
 * Kernel variables for tcp.
 */
extern int      tcp_do_rfc1323;
extern int      tcp_do_rfc1644;
 
/* TCP segment queue entry */
struct tseg_qent {
        LIST_ENTRY(tseg_qent) tqe_q;
        int     tqe_len;                /* TCP segment data length */
        struct  tcphdr *tqe_th;         /* a pointer to tcp header */
        struct  mbuf    *tqe_m;         /* mbuf contains packet */
};
LIST_HEAD(tsegqe_head, tseg_qent);
#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_TSEGQ);
#endif
 
struct tcptemp {
        u_char  tt_ipgen[40]; /* the size must be of max ip header, now IPv6 */
        struct  tcphdr tt_t;
};
 
#define tcp6cb          tcpcb  /* for KAME src sync over BSD*'s */
 
/*
 * Tcp control block, one per tcp; fields:
 * Organized for 16 byte cacheline efficiency.
 */
struct tcpcb {
        struct  tsegqe_head t_segq;
        int     t_dupacks;              /* consecutive dup acks recd */
        struct  tcptemp *unused;        /* unused */
 
        struct  callout *tt_rexmt;      /* retransmit timer */
        struct  callout *tt_persist;    /* retransmit persistence */
        struct  callout *tt_keep;       /* keepalive */
        struct  callout *tt_2msl;       /* 2*msl TIME_WAIT timer */
        struct  callout *tt_delack;     /* delayed ACK timer */
 
        struct  inpcb *t_inpcb;         /* back pointer to internet pcb */
        int     t_state;                /* state of this connection */
        u_int   t_flags;
#define TF_ACKNOW       0x00001         /* ack peer immediately */
#define TF_DELACK       0x00002         /* ack, but try to delay it */
#define TF_NODELAY      0x00004         /* don't delay packets to coalesce */
#define TF_NOOPT        0x00008         /* don't use tcp options */
#define TF_SENTFIN      0x00010         /* have sent FIN */
#define TF_REQ_SCALE    0x00020         /* have/will request window scaling */
#define TF_RCVD_SCALE   0x00040         /* other side has requested scaling */
#define TF_REQ_TSTMP    0x00080         /* have/will request timestamps */
#define TF_RCVD_TSTMP   0x00100         /* a timestamp was received in SYN */
#define TF_SACK_PERMIT  0x00200         /* other side said I could SACK */
#define TF_NEEDSYN      0x00400         /* send SYN (implicit state) */
#define TF_NEEDFIN      0x00800         /* send FIN (implicit state) */
#define TF_NOPUSH       0x01000         /* don't push */
#define TF_REQ_CC       0x02000         /* have/will request CC */
#define TF_RCVD_CC      0x04000         /* a CC was received in SYN */
#define TF_SENDCCNEW    0x08000         /* send CCnew instead of CC in SYN */
#define TF_MORETOCOME   0x10000         /* More data to be appended to sock */
#define TF_LQ_OVERFLOW  0x20000         /* listen queue overflow */
#define TF_LASTIDLE     0x40000         /* connection was previously idle */
#define TF_RXWIN0SENT   0x80000         /* sent a receiver win 0 in response */
        int     t_force;                /* 1 if forcing out a byte */
 
        tcp_seq snd_una;                /* send unacknowledged */
        tcp_seq snd_max;                /* highest sequence number sent;
                                         * used to recognize retransmits
                                         */
        tcp_seq snd_nxt;                /* send next */
        tcp_seq snd_up;                 /* send urgent pointer */
 
        tcp_seq snd_wl1;                /* window update seg seq number */
        tcp_seq snd_wl2;                /* window update seg ack number */
        tcp_seq iss;                    /* initial send sequence number */
        tcp_seq irs;                    /* initial receive sequence number */
 
        tcp_seq rcv_nxt;                /* receive next */
        tcp_seq rcv_adv;                /* advertised window */
        u_long  rcv_wnd;                /* receive window */
        tcp_seq rcv_up;                 /* receive urgent pointer */
 
        u_long  snd_wnd;                /* send window */
        u_long  snd_cwnd;               /* congestion-controlled window */
        u_long  snd_ssthresh;           /* snd_cwnd size threshold for
                                         * for slow start exponential to
                                         * linear switch
                                         */
        tcp_seq snd_recover;            /* for use in fast recovery */
 
        u_int   t_maxopd;               /* mss plus options */
 
        u_long  t_rcvtime;              /* inactivity time */
        u_long  t_starttime;            /* time connection was established */
        int     t_rtttime;              /* round trip time */
        tcp_seq t_rtseq;                /* sequence number being timed */
 
        int     t_rxtcur;               /* current retransmit value (ticks) */
        u_int   t_maxseg;               /* maximum segment size */
        int     t_srtt;                 /* smoothed round-trip time */
        int     t_rttvar;               /* variance in round-trip time */
 
        int     t_rxtshift;             /* log(2) of rexmt exp. backoff */
        u_int   t_rttmin;               /* minimum rtt allowed */
        u_long  t_rttupdated;           /* number of times rtt sampled */
        u_long  max_sndwnd;             /* largest window peer has offered */
 
        int     t_softerror;            /* possible error not yet reported */
/* out-of-band data */
        char    t_oobflags;             /* have some */
        char    t_iobc;                 /* input character */
#define TCPOOB_HAVEDATA 0x01
#define TCPOOB_HADDATA  0x02
/* RFC 1323 variables */
        u_char  snd_scale;              /* window scaling for send window */
        u_char  rcv_scale;              /* window scaling for recv window */
        u_char  request_r_scale;        /* pending window scaling */
        u_char  requested_s_scale;
        u_long  ts_recent;              /* timestamp echo data */
 
        u_long  ts_recent_age;          /* when last updated */
        tcp_seq last_ack_sent;
/* RFC 1644 variables */
        tcp_cc  cc_send;                /* send connection count */
        tcp_cc  cc_recv;                /* receive connection count */
/* experimental */
        u_long  snd_cwnd_prev;          /* cwnd prior to retransmit */
        u_long  snd_ssthresh_prev;      /* ssthresh prior to retransmit */
        u_long  t_badrxtwin;            /* window for retransmit recovery */
};
 
/*
 * Structure to hold TCP options that are only used during segment
 * processing (in tcp_input), but not held in the tcpcb.
 * It's basically used to reduce the number of parameters
 * to tcp_dooptions.
 */
struct tcpopt {
        u_long          to_flags;       /* which options are present */
#define TOF_TS          0x0001          /* timestamp */
#define TOF_CC          0x0002          /* CC and CCnew are exclusive */
#define TOF_CCNEW       0x0004
#define TOF_CCECHO      0x0008
#define TOF_MSS         0x0010
#define TOF_SCALE       0x0020
        u_int32_t       to_tsval;
        u_int32_t       to_tsecr;
        tcp_cc          to_cc;          /* holds CC or CCnew */
        tcp_cc          to_ccecho;
        u_int16_t       to_mss;
        u_int8_t        to_requested_s_scale;
        u_int8_t        to_pad;
};
 
struct syncache {
        inp_gen_t       sc_inp_gencnt;          /* pointer check */
        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;
        tcp_seq         sc_irs;                 /* seq from peer */
        tcp_seq         sc_iss;                 /* our ISS */
        u_long          sc_rxttime;             /* retransmit time */
        u_int16_t       sc_rxtslot;             /* retransmit counter */
        u_int16_t       sc_peer_mss;            /* peer's MSS */
        u_int16_t       sc_wnd;                 /* advertised window */
        u_int8_t        sc_requested_s_scale:4,
                        sc_request_r_scale:4;
        u_int8_t        sc_flags;
#define SCF_NOOPT       0x01                    /* no TCP options */
#define SCF_WINSCALE    0x02                    /* negotiated window scaling */
#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;
};
 
struct syncache_head {
        TAILQ_HEAD(, syncache)  sch_bucket;
        u_int           sch_length;
};
 
/*
 * The TAO cache entry which is stored in the protocol family specific
 * portion of the route metrics.
 */
struct rmxp_tao {
        tcp_cc  tao_cc;                 /* latest CC in valid SYN */
        tcp_cc  tao_ccsent;             /* latest CC sent to peer */
        u_short tao_mssopt;             /* peer's cached MSS */
#ifdef notyet
        u_short tao_flags;              /* cache status flags */
#define TAOF_DONT       0x0001          /* peer doesn't understand rfc1644 */
#define TAOF_OK         0x0002          /* peer does understand rfc1644 */
#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 sototcpcb(so)   (intotcpcb(sotoinpcb(so)))
 
/*
 * The smoothed round-trip time and estimated variance
 * are stored as fixed point numbers scaled by the values below.
 * For convenience, these scales are also used in smoothing the average
 * (smoothed = (1/scale)sample + ((scale-1)/scale)smoothed).
 * With these scales, srtt has 3 bits to the right of the binary point,
 * and thus an "ALPHA" of 0.875.  rttvar has 2 bits to the right of the
 * binary point, and is smoothed with an ALPHA of 0.75.
 */
#define TCP_RTT_SCALE           32      /* multiplier for srtt; 3 bits frac. */
#define TCP_RTT_SHIFT           5       /* shift for srtt; 3 bits frac. */
#define TCP_RTTVAR_SCALE        16      /* multiplier for rttvar; 2 bits */
#define TCP_RTTVAR_SHIFT        4       /* shift for rttvar; 2 bits */
#define TCP_DELTA_SHIFT         2       /* see tcp_input.c */
 
/*
 * The initial retransmission should happen at rtt + 4 * rttvar.
 * Because of the way we do the smoothing, srtt and rttvar
 * will each average +1/2 tick of bias.  When we compute
 * the retransmit timer, we want 1/2 tick of rounding and
 * 1 extra tick because of +-1/2 tick uncertainty in the
 * firing of the timer.  The bias will give us exactly the
 * 1.5 tick we need.  But, because the bias is
 * statistical, we have to test that we don't drop below
 * the minimum feasible timer (which is 2 ticks).
 * This version of the macro adapted from a paper by Lawrence
 * Brakmo and Larry Peterson which outlines a problem caused
 * by insufficient precision in the original implementation,
 * which results in inappropriately large RTO values for very
 * fast networks.
 */
#define TCP_REXMTVAL(tp) \
        max((tp)->t_rttmin, (((tp)->t_srtt >> (TCP_RTT_SHIFT - TCP_DELTA_SHIFT))  \
          + (tp)->t_rttvar) >> TCP_DELTA_SHIFT)
 
/*
 * 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_rcvmemdrop;        /* packets dropped for lack of memory */
        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_pcbcachemiss;
        u_long  tcps_cachedrtt;         /* times cached RTT in route updated */
        u_long  tcps_cachedrttvar;      /* times cached rttvar updated */
        u_long  tcps_cachedssthresh;    /* times cached ssthresh updated */
        u_long  tcps_usedrtt;           /* times RTT initialized from route */
        u_long  tcps_usedrttvar;        /* times RTTVAR initialized from rt */
        u_long  tcps_usedssthresh;      /* times ssthresh initialized from rt*/
        u_long  tcps_persistdrop;       /* timeout in persist state */
        u_long  tcps_badsyn;            /* bogus SYN, e.g. premature ACK */
        u_long  tcps_mturesent;         /* resends due to MTU discovery */
        u_long  tcps_listendrop;        /* listen queue overflows */
 
        u_long  tcps_sc_added;          /* entry added to syncache */
        u_long  tcps_sc_retransmitted;  /* syncache entry was retransmitted */
        u_long  tcps_sc_dupsyn;         /* duplicate SYN packet */
        u_long  tcps_sc_dropped;        /* could not reply to packet */
        u_long  tcps_sc_completed;      /* successful extraction of entry */
        u_long  tcps_sc_bucketoverflow; /* syncache per-bucket limit hit */
        u_long  tcps_sc_cacheoverflow;  /* syncache cache limit hit */
        u_long  tcps_sc_reset;          /* RST removed entry from syncache */
        u_long  tcps_sc_stale;          /* timed out or listen socket gone */
        u_long  tcps_sc_aborted;        /* syncache entry aborted */
        u_long  tcps_sc_badack;         /* removed due to bad ACK */
        u_long  tcps_sc_unreach;        /* ICMP unreachable received */
        u_long  tcps_sc_zonefail;       /* zalloc() failed */
        u_long  tcps_sc_sendcookie;     /* SYN cookie sent */
        u_long  tcps_sc_recvcookie;     /* SYN cookie received */
};
 
/*
 * TCB structure exported to user-land via sysctl(3).
 * Evil hack: declare only if in_pcb.h and sys/socketvar.h have been
 * included.  Not all of our clients do.
 */
#if defined(_NETINET_IN_PCB_H_) && defined(_SYS_SOCKETVAR_H_)
struct  xtcpcb {
        size_t  xt_len;
        struct  inpcb   xt_inp;
        struct  tcpcb   xt_tp;
        struct  xsocket xt_socket;
        u_quad_t        xt_alignment_hack;
};
#endif
 
/*
 * Names for TCP sysctl objects
 */
#define TCPCTL_DO_RFC1323       1       /* use RFC-1323 extensions */
#define TCPCTL_DO_RFC1644       2       /* use RFC-1644 extensions */
#define TCPCTL_MSSDFLT          3       /* MSS default */
#define TCPCTL_STATS            4       /* statistics (read-only) */
#define TCPCTL_RTTDFLT          5       /* default RTT estimate */
#define TCPCTL_KEEPIDLE         6       /* keepalive idle timer */
#define TCPCTL_KEEPINTVL        7       /* interval to send keepalives */
#define TCPCTL_SENDSPACE        8       /* send buffer space */
#define TCPCTL_RECVSPACE        9       /* receive buffer space */
#define TCPCTL_KEEPINIT         10      /* timeout for establishing syn */
#define TCPCTL_PCBLIST          11      /* list of all outstanding PCBs */
#define TCPCTL_DELACKTIME       12      /* time before sending delayed ACK */
#define TCPCTL_V6MSSDFLT        13      /* MSS default for IPv6 */
#define TCPCTL_MAXID            14
 
#define TCPCTL_NAMES { \
        { 0, 0 }, \
        { "rfc1323", CTLTYPE_INT }, \
        { "rfc1644", CTLTYPE_INT }, \
        { "mssdflt", CTLTYPE_INT }, \
        { "stats", CTLTYPE_STRUCT }, \
        { "rttdflt", CTLTYPE_INT }, \
        { "keepidle", CTLTYPE_INT }, \
        { "keepintvl", CTLTYPE_INT }, \
        { "sendspace", CTLTYPE_INT }, \
        { "recvspace", CTLTYPE_INT }, \
        { "keepinit", CTLTYPE_INT }, \
        { "pcblist", CTLTYPE_STRUCT }, \
        { "delacktime", CTLTYPE_INT }, \
        { "v6mssdflt", CTLTYPE_INT }, \
}
 
 
#ifdef _KERNEL
#ifdef SYSCTL_DECL
SYSCTL_DECL(_net_inet_tcp);
#endif
 
extern  struct inpcbhead tcb;           /* head of queue of active tcpcb's */
extern  struct inpcbinfo tcbinfo;
extern  struct tcpstat tcpstat; /* tcp statistics */
extern  int tcp_mssdflt;        /* XXX */
extern  int tcp_delack_enabled;
extern  int tcp_do_newreno;
extern  int ss_fltsz;
extern  int ss_fltsz_local;
 
void     tcp_canceltimers(struct tcpcb *);
struct tcpcb *
         tcp_close(struct tcpcb *);
void     tcp_ctlinput(int, struct sockaddr *, void *);
int      tcp_ctloutput(struct socket *, struct sockopt *);
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);
void     tcp_mss(struct tcpcb *, int);
int      tcp_mssopt(struct tcpcb *);
void     tcp_drop_syn_sent(struct inpcb *, int);
void     tcp_mtudisc(struct inpcb *, int);
struct tcpcb *
         tcp_newtcpcb(struct inpcb *);
int      tcp_output(struct tcpcb *);
void     tcp_quench(struct inpcb *, int);
void     tcp_respond(struct tcpcb *, void *,
            struct tcphdr *, struct mbuf *, tcp_seq, tcp_seq, int);
struct rtentry *
         tcp_rtlookup(struct in_conninfo *);
void     tcp_setpersist(struct tcpcb *);
void     tcp_slowtimo(void);
struct tcptemp *
         tcp_maketemplate(struct tcpcb *);
void     tcp_fillheaders(struct tcpcb *, void *, void *);
struct tcpcb *
         tcp_timers(struct tcpcb *, int);
void     tcp_trace(int, int, struct tcpcb *, void *, struct tcphdr *, int);
void     syncache_init(void);
void     syncache_unreach(struct in_conninfo *, struct tcphdr *);
int      syncache_expand(struct in_conninfo *, struct tcphdr *,
             struct socket **, struct mbuf *);
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 *);
 
extern  struct pr_usrreqs tcp_usrreqs;
extern  u_long tcp_sendspace;
extern  u_long tcp_recvspace;
tcp_seq tcp_new_isn(struct tcpcb *);
 
#endif /* _KERNEL */
 
#endif /* _NETINET_TCP_VAR_H_ */
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[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc1/] [newlib/] [libc/] [sys/] [linux/] [include/] [netinet/] [tcp_var.h] - Blame information for rev 345
