diff options
Diffstat (limited to 'freebsd/sys/netinet/tcp_syncache.c')
| -rw-r--r-- | freebsd/sys/netinet/tcp_syncache.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/freebsd/sys/netinet/tcp_syncache.c b/freebsd/sys/netinet/tcp_syncache.c index 4dc1208f..46b8414c 100644 --- a/freebsd/sys/netinet/tcp_syncache.c +++ b/freebsd/sys/netinet/tcp_syncache.c @@ -150,23 +150,23 @@ static VNET_DEFINE(struct tcp_syncache, tcp_syncache); SYSCTL_NODE(_net_inet_tcp, OID_AUTO, syncache, CTLFLAG_RW, 0, "TCP SYN cache"); -SYSCTL_VNET_INT(_net_inet_tcp_syncache, OID_AUTO, bucketlimit, CTLFLAG_RDTUN, +SYSCTL_VNET_UINT(_net_inet_tcp_syncache, OID_AUTO, bucketlimit, CTLFLAG_RDTUN, &VNET_NAME(tcp_syncache.bucket_limit), 0, "Per-bucket hash limit for syncache"); -SYSCTL_VNET_INT(_net_inet_tcp_syncache, OID_AUTO, cachelimit, CTLFLAG_RDTUN, +SYSCTL_VNET_UINT(_net_inet_tcp_syncache, OID_AUTO, cachelimit, CTLFLAG_RDTUN, &VNET_NAME(tcp_syncache.cache_limit), 0, "Overall entry limit for syncache"); -SYSCTL_VNET_INT(_net_inet_tcp_syncache, OID_AUTO, count, CTLFLAG_RD, +SYSCTL_VNET_UINT(_net_inet_tcp_syncache, OID_AUTO, count, CTLFLAG_RD, &VNET_NAME(tcp_syncache.cache_count), 0, "Current number of entries in syncache"); -SYSCTL_VNET_INT(_net_inet_tcp_syncache, OID_AUTO, hashsize, CTLFLAG_RDTUN, +SYSCTL_VNET_UINT(_net_inet_tcp_syncache, OID_AUTO, hashsize, CTLFLAG_RDTUN, &VNET_NAME(tcp_syncache.hashsize), 0, "Size of TCP syncache hashtable"); -SYSCTL_VNET_INT(_net_inet_tcp_syncache, OID_AUTO, rexmtlimit, CTLFLAG_RW, +SYSCTL_VNET_UINT(_net_inet_tcp_syncache, OID_AUTO, rexmtlimit, CTLFLAG_RW, &VNET_NAME(tcp_syncache.rexmt_limit), 0, "Limit on SYN/ACK retransmissions"); @@ -526,7 +526,7 @@ syncache_chkrst(struct in_conninfo *inc, struct tcphdr *th) * used, or we are under memory pressure, a valid RST * may not find a syncache entry. In that case we're * done and no SYN|ACK retransmissions will happen. - * Otherwise the the RST was misdirected or spoofed. + * Otherwise the RST was misdirected or spoofed. */ if (sc == NULL) { if ((s = tcp_log_addrs(inc, th, NULL, NULL))) @@ -814,7 +814,7 @@ syncache_socket(struct syncache *sc, struct socket *lso, struct mbuf *m) if (sc->sc_flags & SCF_TIMESTAMP) { tp->t_flags |= TF_REQ_TSTMP|TF_RCVD_TSTMP; tp->ts_recent = sc->sc_tsreflect; - tp->ts_recent_age = ticks; + tp->ts_recent_age = tcp_ts_getticks(); tp->ts_offset = sc->sc_tsoff; } #ifdef TCP_SIGNATURE @@ -1023,7 +1023,8 @@ _syncache_add(struct in_conninfo *inc, struct tcpopt *to, struct tcphdr *th, struct syncache_head *sch; struct mbuf *ipopts = NULL; u_int32_t flowtmp; - int win, sb_hiwat, ip_ttl, ip_tos, noopt; + u_int ltflags; + int win, sb_hiwat, ip_ttl, ip_tos; char *s; #ifdef INET6 int autoflowlabel = 0; @@ -1056,7 +1057,7 @@ _syncache_add(struct in_conninfo *inc, struct tcpopt *to, struct tcphdr *th, ip_tos = inp->inp_ip_tos; win = sbspace(&so->so_rcv); sb_hiwat = so->so_rcv.sb_hiwat; - noopt = (tp->t_flags & TF_NOOPT); + ltflags = (tp->t_flags & (TF_NOOPT | TF_SIGNATURE)); /* By the time we drop the lock these should no longer be used. */ so = NULL; @@ -1208,7 +1209,7 @@ _syncache_add(struct in_conninfo *inc, struct tcpopt *to, struct tcphdr *th, */ if (to->to_flags & TOF_TS) { sc->sc_tsreflect = to->to_tsval; - sc->sc_ts = ticks; + sc->sc_ts = tcp_ts_getticks(); sc->sc_flags |= SCF_TIMESTAMP; } if (to->to_flags & TOF_SCALE) { @@ -1251,14 +1252,14 @@ _syncache_add(struct in_conninfo *inc, struct tcpopt *to, struct tcphdr *th, * XXX: Currently we always record the option by default and will * attempt to use it in syncache_respond(). */ - if (to->to_flags & TOF_SIGNATURE) + if (to->to_flags & TOF_SIGNATURE || ltflags & TF_SIGNATURE) sc->sc_flags |= SCF_SIGNATURE; #endif if (to->to_flags & TOF_SACKPERM) sc->sc_flags |= SCF_SACK; if (to->to_flags & TOF_MSS) sc->sc_peer_mss = to->to_mss; /* peer mss may be zero */ - if (noopt) + if (ltflags & TF_NOOPT) sc->sc_flags |= SCF_NOOPT; if ((th->th_flags & (TH_ECE|TH_CWR)) && V_tcp_do_ecn) sc->sc_flags |= SCF_ECN; @@ -1639,7 +1640,7 @@ syncookie_generate(struct syncache_head *sch, struct syncache *sc, data |= md5_buffer[2] << 10; /* more digest bits */ data ^= md5_buffer[3]; sc->sc_ts = data; - sc->sc_tsoff = data - ticks; /* after XOR */ + sc->sc_tsoff = data - tcp_ts_getticks(); /* after XOR */ } TCPSTAT_INC(tcps_sc_sendcookie); @@ -1724,7 +1725,7 @@ syncookie_lookup(struct in_conninfo *inc, struct syncache_head *sch, sc->sc_flags |= SCF_TIMESTAMP; sc->sc_tsreflect = to->to_tsval; sc->sc_ts = to->to_tsecr; - sc->sc_tsoff = to->to_tsecr - ticks; + sc->sc_tsoff = to->to_tsecr - tcp_ts_getticks(); sc->sc_flags |= (data & 0x1) ? SCF_SIGNATURE : 0; sc->sc_flags |= ((data >> 1) & 0x1) ? SCF_SACK : 0; sc->sc_requested_s_scale = min((data >> 2) & 0xf, |