| 1 | /*
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| 2 | * Copyright (c) 1995 Danny Gasparovski.
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| 3 | * Portions copyright (c) 2000 Kelly Price.
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| 4 | *
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| 5 | * Please read the file COPYRIGHT for the
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| 6 | * terms and conditions of the copyright.
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| 7 | */
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| 8 |
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| 9 | #include <slirp.h>
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| 10 |
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| 11 |
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| 12 | /* Carry over one item from main.c so that the tty's restored.
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| 13 | * Only done when the tty being used is /dev/tty --RedWolf */
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| 14 | extern struct termios slirp_tty_settings;
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| 15 | extern int slirp_tty_restore;
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| 16 |
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| 17 |
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| 18 | /*
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| 19 | * Dump a packet in the same format as tcpdump -x
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| 20 | */
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| 21 | #ifdef DEBUG
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| 22 | void
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| 23 | dump_packet(dat, n)
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| 24 | void *dat;
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| 25 | int n;
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| 26 | {
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| 27 | Log(("nat: PACKET DUMPED:\n%.*Vhxd\n", n, dat));
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| 28 | }
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| 29 | #endif
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| 30 |
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| 31 | #if 0
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| 32 | /*
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| 33 | * Statistic routines
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| 34 | *
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| 35 | * These will print statistics to the screen, the debug file (dfd), or
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| 36 | * a buffer, depending on "type", so that the stats can be sent over
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| 37 | * the link as well.
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| 38 | */
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| 39 |
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| 40 | void
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| 41 | ttystats(ttyp)
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| 42 | struct ttys *ttyp;
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| 43 | {
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| 44 | struct slirp_ifstats *is = &ttyp->ifstats;
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| 45 | char buff[512];
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| 46 |
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| 47 | lprint(" \r\n");
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| 48 |
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| 49 | if (if_comp & IF_COMPRESS)
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| 50 | strcpy(buff, "on");
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| 51 | else if (if_comp & IF_NOCOMPRESS)
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| 52 | strcpy(buff, "off");
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| 53 | else
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| 54 | strcpy(buff, "off (for now)");
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| 55 | lprint("Unit %d:\r\n", ttyp->unit);
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| 56 | lprint(" using %s encapsulation (VJ compression is %s)\r\n", (
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| 57 | #ifdef USE_PPP
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| 58 | ttyp->proto==PROTO_PPP?"PPP":
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| 59 | #endif
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| 60 | "SLIP"), buff);
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| 61 | lprint(" %d baudrate\r\n", ttyp->baud);
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| 62 | lprint(" interface is %s\r\n", ttyp->up?"up":"down");
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| 63 | lprint(" using fd %d, guardian pid is %d\r\n", ttyp->fd, ttyp->pid);
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| 64 | #ifndef FULL_BOLT
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| 65 | lprint(" towrite is %d bytes\r\n", ttyp->towrite);
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| 66 | #endif
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| 67 | if (ttyp->zeros)
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| 68 | lprint(" %d zeros have been typed\r\n", ttyp->zeros);
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| 69 | else if (ttyp->ones)
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| 70 | lprint(" %d ones have been typed\r\n", ttyp->ones);
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| 71 | lprint("Interface stats:\r\n");
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| 72 | lprint(" %6d output packets sent (%d bytes)\r\n", is->out_pkts, is->out_bytes);
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| 73 | lprint(" %6d output packets dropped (%d bytes)\r\n", is->out_errpkts, is->out_errbytes);
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| 74 | lprint(" %6d input packets received (%d bytes)\r\n", is->in_pkts, is->in_bytes);
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| 75 | lprint(" %6d input packets dropped (%d bytes)\r\n", is->in_errpkts, is->in_errbytes);
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| 76 | lprint(" %6d bad input packets\r\n", is->in_mbad);
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| 77 | }
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| 78 |
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| 79 | void
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| 80 | allttystats()
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| 81 | {
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| 82 | struct ttys *ttyp;
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| 83 |
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| 84 | for (ttyp = ttys; ttyp; ttyp = ttyp->next)
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| 85 | ttystats(ttyp);
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| 86 | }
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| 87 | #endif
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| 88 |
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| 89 | void
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| 90 | ipstats(PNATState pData)
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| 91 | {
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| 92 | lprint(" \r\n");
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| 93 |
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| 94 | lprint("IP stats:\r\n");
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| 95 | lprint(" %6d total packets received (%d were unaligned)\r\n",
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| 96 | ipstat.ips_total, ipstat.ips_unaligned);
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| 97 | lprint(" %6d with incorrect version\r\n", ipstat.ips_badvers);
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| 98 | lprint(" %6d with bad header checksum\r\n", ipstat.ips_badsum);
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| 99 | lprint(" %6d with length too short (len < sizeof(iphdr))\r\n", ipstat.ips_tooshort);
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| 100 | lprint(" %6d with length too small (len < ip->len)\r\n", ipstat.ips_toosmall);
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| 101 | lprint(" %6d with bad header length\r\n", ipstat.ips_badhlen);
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| 102 | lprint(" %6d with bad packet length\r\n", ipstat.ips_badlen);
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| 103 | lprint(" %6d fragments received\r\n", ipstat.ips_fragments);
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| 104 | lprint(" %6d fragments dropped\r\n", ipstat.ips_fragdropped);
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| 105 | lprint(" %6d fragments timed out\r\n", ipstat.ips_fragtimeout);
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| 106 | lprint(" %6d packets reassembled ok\r\n", ipstat.ips_reassembled);
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| 107 | lprint(" %6d outgoing packets fragmented\r\n", ipstat.ips_fragmented);
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| 108 | lprint(" %6d total outgoing fragments\r\n", ipstat.ips_ofragments);
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| 109 | lprint(" %6d with bad protocol field\r\n", ipstat.ips_noproto);
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| 110 | lprint(" %6d total packets delivered\r\n", ipstat.ips_delivered);
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| 111 | }
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| 112 |
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| 113 | #if 0
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| 114 | void
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| 115 | vjstats()
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| 116 | {
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| 117 | lprint(" \r\n");
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| 118 |
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| 119 | lprint("VJ compression stats:\r\n");
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| 120 |
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| 121 | lprint(" %6d outbound packets (%d compressed)\r\n",
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| 122 | comp_s.sls_packets, comp_s.sls_compressed);
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| 123 | lprint(" %6d searches for connection stats (%d misses)\r\n",
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| 124 | comp_s.sls_searches, comp_s.sls_misses);
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| 125 | lprint(" %6d inbound uncompressed packets\r\n", comp_s.sls_uncompressedin);
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| 126 | lprint(" %6d inbound compressed packets\r\n", comp_s.sls_compressedin);
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| 127 | lprint(" %6d inbound unknown type packets\r\n", comp_s.sls_errorin);
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| 128 | lprint(" %6d inbound packets tossed due to error\r\n", comp_s.sls_tossed);
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| 129 | }
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| 130 | #endif
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| 131 |
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| 132 | void
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| 133 | tcpstats(PNATState pData)
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| 134 | {
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| 135 | lprint(" \r\n");
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| 136 |
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| 137 | lprint("TCP stats:\r\n");
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| 138 |
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| 139 | lprint(" %6d packets sent\r\n", tcpstat.tcps_sndtotal);
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| 140 | lprint(" %6d data packets (%d bytes)\r\n",
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| 141 | tcpstat.tcps_sndpack, tcpstat.tcps_sndbyte);
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| 142 | lprint(" %6d data packets retransmitted (%d bytes)\r\n",
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| 143 | tcpstat.tcps_sndrexmitpack, tcpstat.tcps_sndrexmitbyte);
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| 144 | lprint(" %6d ack-only packets (%d delayed)\r\n",
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| 145 | tcpstat.tcps_sndacks, tcpstat.tcps_delack);
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| 146 | lprint(" %6d URG only packets\r\n", tcpstat.tcps_sndurg);
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| 147 | lprint(" %6d window probe packets\r\n", tcpstat.tcps_sndprobe);
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| 148 | lprint(" %6d window update packets\r\n", tcpstat.tcps_sndwinup);
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| 149 | lprint(" %6d control (SYN/FIN/RST) packets\r\n", tcpstat.tcps_sndctrl);
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| 150 | lprint(" %6d times tcp_output did nothing\r\n", tcpstat.tcps_didnuttin);
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| 151 |
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| 152 | lprint(" %6d packets received\r\n", tcpstat.tcps_rcvtotal);
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| 153 | lprint(" %6d acks (for %d bytes)\r\n",
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| 154 | tcpstat.tcps_rcvackpack, tcpstat.tcps_rcvackbyte);
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| 155 | lprint(" %6d duplicate acks\r\n", tcpstat.tcps_rcvdupack);
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| 156 | lprint(" %6d acks for unsent data\r\n", tcpstat.tcps_rcvacktoomuch);
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| 157 | lprint(" %6d packets received in sequence (%d bytes)\r\n",
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| 158 | tcpstat.tcps_rcvpack, tcpstat.tcps_rcvbyte);
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| 159 | lprint(" %6d completely duplicate packets (%d bytes)\r\n",
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| 160 | tcpstat.tcps_rcvduppack, tcpstat.tcps_rcvdupbyte);
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| 161 |
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| 162 | lprint(" %6d packets with some duplicate data (%d bytes duped)\r\n",
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| 163 | tcpstat.tcps_rcvpartduppack, tcpstat.tcps_rcvpartdupbyte);
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| 164 | lprint(" %6d out-of-order packets (%d bytes)\r\n",
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| 165 | tcpstat.tcps_rcvoopack, tcpstat.tcps_rcvoobyte);
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| 166 | lprint(" %6d packets of data after window (%d bytes)\r\n",
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| 167 | tcpstat.tcps_rcvpackafterwin, tcpstat.tcps_rcvbyteafterwin);
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| 168 | lprint(" %6d window probes\r\n", tcpstat.tcps_rcvwinprobe);
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| 169 | lprint(" %6d window update packets\r\n", tcpstat.tcps_rcvwinupd);
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| 170 | lprint(" %6d packets received after close\r\n", tcpstat.tcps_rcvafterclose);
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| 171 | lprint(" %6d discarded for bad checksums\r\n", tcpstat.tcps_rcvbadsum);
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| 172 | lprint(" %6d discarded for bad header offset fields\r\n",
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| 173 | tcpstat.tcps_rcvbadoff);
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| 174 |
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| 175 | lprint(" %6d connection requests\r\n", tcpstat.tcps_connattempt);
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| 176 | lprint(" %6d connection accepts\r\n", tcpstat.tcps_accepts);
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| 177 | lprint(" %6d connections established (including accepts)\r\n", tcpstat.tcps_connects);
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| 178 | lprint(" %6d connections closed (including %d drop)\r\n",
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| 179 | tcpstat.tcps_closed, tcpstat.tcps_drops);
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| 180 | lprint(" %6d embryonic connections dropped\r\n", tcpstat.tcps_conndrops);
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| 181 | lprint(" %6d segments we tried to get rtt (%d succeeded)\r\n",
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| 182 | tcpstat.tcps_segstimed, tcpstat.tcps_rttupdated);
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| 183 | lprint(" %6d retransmit timeouts\r\n", tcpstat.tcps_rexmttimeo);
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| 184 | lprint(" %6d connections dropped by rxmt timeout\r\n",
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| 185 | tcpstat.tcps_timeoutdrop);
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| 186 | lprint(" %6d persist timeouts\r\n", tcpstat.tcps_persisttimeo);
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| 187 | lprint(" %6d keepalive timeouts\r\n", tcpstat.tcps_keeptimeo);
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| 188 | lprint(" %6d keepalive probes sent\r\n", tcpstat.tcps_keepprobe);
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| 189 | lprint(" %6d connections dropped by keepalive\r\n", tcpstat.tcps_keepdrops);
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| 190 | lprint(" %6d correct ACK header predictions\r\n", tcpstat.tcps_predack);
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| 191 | lprint(" %6d correct data packet header predictions\n", tcpstat.tcps_preddat);
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| 192 | lprint(" %6d TCP cache misses\r\n", tcpstat.tcps_socachemiss);
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| 193 |
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| 194 |
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| 195 | /* lprint(" Packets received too short: %d\r\n", tcpstat.tcps_rcvshort); */
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| 196 | /* lprint(" Segments dropped due to PAWS: %d\r\n", tcpstat.tcps_pawsdrop); */
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| 197 |
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| 198 | }
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| 199 |
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| 200 | void
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| 201 | udpstats(PNATState pData)
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| 202 | {
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| 203 | lprint(" \r\n");
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| 204 |
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| 205 | lprint("UDP stats:\r\n");
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| 206 | lprint(" %6d datagrams received\r\n", udpstat.udps_ipackets);
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| 207 | lprint(" %6d with packets shorter than header\r\n", udpstat.udps_hdrops);
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| 208 | lprint(" %6d with bad checksums\r\n", udpstat.udps_badsum);
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| 209 | lprint(" %6d with data length larger than packet\r\n", udpstat.udps_badlen);
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| 210 | lprint(" %6d UDP socket cache misses\r\n", udpstat.udpps_pcbcachemiss);
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| 211 | lprint(" %6d datagrams sent\r\n", udpstat.udps_opackets);
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| 212 | }
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| 213 |
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| 214 | void
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| 215 | icmpstats(PNATState pData)
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| 216 | {
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| 217 | lprint(" \r\n");
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| 218 | lprint("ICMP stats:\r\n");
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| 219 | lprint(" %6d ICMP packets received\r\n", icmpstat.icps_received);
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| 220 | lprint(" %6d were too short\r\n", icmpstat.icps_tooshort);
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| 221 | lprint(" %6d with bad checksums\r\n", icmpstat.icps_checksum);
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| 222 | lprint(" %6d with type not supported\r\n", icmpstat.icps_notsupp);
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| 223 | lprint(" %6d with bad type feilds\r\n", icmpstat.icps_badtype);
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| 224 | lprint(" %6d ICMP packets sent in reply\r\n", icmpstat.icps_reflect);
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| 225 | }
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| 226 |
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| 227 | void
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| 228 | mbufstats(PNATState pData)
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| 229 | {
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| 230 | struct mbuf *m;
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| 231 | int i;
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| 232 |
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| 233 | lprint(" \r\n");
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| 234 |
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| 235 | lprint("Mbuf stats:\r\n");
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| 236 |
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| 237 | lprint(" %6d mbufs allocated (%d max)\r\n", mbuf_alloced, mbuf_max);
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| 238 |
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| 239 | i = 0;
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| 240 | for (m = m_freelist.m_next; m != &m_freelist; m = m->m_next)
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| 241 | i++;
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| 242 | lprint(" %6d mbufs on free list\r\n", i);
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| 243 |
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| 244 | i = 0;
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| 245 | for (m = m_usedlist.m_next; m != &m_usedlist; m = m->m_next)
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| 246 | i++;
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| 247 | lprint(" %6d mbufs on used list\r\n", i);
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| 248 | lprint(" %6d mbufs queued as packets\r\n\r\n", if_queued);
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| 249 | }
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| 250 |
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| 251 | void
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| 252 | sockstats(PNATState pData)
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| 253 | {
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| 254 | char buff[256];
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| 255 | int n;
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| 256 | struct socket *so;
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| 257 |
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| 258 | lprint(" \r\n");
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| 259 |
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| 260 | lprint(
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| 261 | "Proto[state] Sock Local Address, Port Remote Address, Port RecvQ SendQ\r\n");
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| 262 |
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| 263 | for (so = tcb.so_next; so != &tcb; so = so->so_next) {
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| 264 |
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| 265 | n = sprintf(buff, "tcp[%s]", so->so_tcpcb?tcpstates[so->so_tcpcb->t_state]:"NONE");
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| 266 | while (n < 17)
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| 267 | buff[n++] = ' ';
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| 268 | buff[17] = 0;
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| 269 | lprint("%s %3d %15s %5d ",
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| 270 | buff, so->s,
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| 271 | inet_ntoa(so->so_laddr), ntohs(so->so_lport));
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| 272 | lprint("%15s %5d %5d %5d\r\n",
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| 273 | inet_ntoa(so->so_faddr), ntohs(so->so_fport),
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| 274 | so->so_rcv.sb_cc, so->so_snd.sb_cc);
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| 275 | }
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| 276 |
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| 277 | for (so = udb.so_next; so != &udb; so = so->so_next) {
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| 278 |
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| 279 | n = sprintf(buff, "udp[%d sec]", (so->so_expire - curtime) / 1000);
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| 280 | while (n < 17)
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| 281 | buff[n++] = ' ';
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| 282 | buff[17] = 0;
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| 283 | lprint("%s %3d %15s %5d ",
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| 284 | buff, so->s,
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| 285 | inet_ntoa(so->so_laddr), ntohs(so->so_lport));
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| 286 | lprint("%15s %5d %5d %5d\r\n",
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| 287 | inet_ntoa(so->so_faddr), ntohs(so->so_fport),
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| 288 | so->so_rcv.sb_cc, so->so_snd.sb_cc);
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| 289 | }
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| 290 | }
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| 291 |
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| 292 | #if 0
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| 293 | void
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| 294 | slirp_exit(exit_status)
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| 295 | int exit_status;
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| 296 | {
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| 297 | struct ttys *ttyp;
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| 298 |
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| 299 | DEBUG_CALL("slirp_exit");
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| 300 | DEBUG_ARG("exit_status = %d", exit_status);
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| 301 |
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| 302 | if (dostats) {
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| 303 | lprint_print = (int (*) _P((void *, const char *, va_list)))vfprintf;
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| 304 | if (!dfd)
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| 305 | debug_init("slirp_stats", 0xf);
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| 306 | lprint_arg = (char **)&dfd;
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| 307 |
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| 308 | ipstats();
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| 309 | tcpstats();
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| 310 | udpstats();
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| 311 | icmpstats();
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| 312 | mbufstats();
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| 313 | sockstats();
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| 314 | allttystats();
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| 315 | vjstats();
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| 316 | }
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| 317 |
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| 318 | for (ttyp = ttys; ttyp; ttyp = ttyp->next)
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| 319 | tty_detached(ttyp, 1);
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| 320 |
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| 321 | if (slirp_forked) {
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| 322 | /* Menendez time */
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| 323 | if (kill(getppid(), SIGQUIT) < 0)
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| 324 | lprint("Couldn't kill parent process %ld!\n",
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| 325 | (long) getppid());
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| 326 | }
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| 327 |
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| 328 | /* Restore the terminal if we gotta */
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| 329 | if(slirp_tty_restore)
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| 330 | tcsetattr(0,TCSANOW, &slirp_tty_settings); /* NOW DAMMIT! */
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| 331 | exit(exit_status);
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| 332 | }
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| 333 | #endif
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