377 lines
11 KiB
C
377 lines
11 KiB
C
/*
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* Copyright (c) 1995 Danny Gasparovski.
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* Portions copyright (c) 2000 Kelly Price.
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*
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* Please read the file COPYRIGHT for the
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* terms and conditions of the copyright.
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*/
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#include <slirp.h>
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FILE *dfd = NULL;
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#ifdef DEBUG
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int dostats = 1;
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#else
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int dostats = 0;
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#endif
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int slirp_debug = 0;
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extern char *strerror _P((int));
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/* Carry over one item from main.c so that the tty's restored.
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* Only done when the tty being used is /dev/tty --RedWolf */
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extern struct termios slirp_tty_settings;
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extern int slirp_tty_restore;
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void
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debug_init(file, dbg)
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char *file;
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int dbg;
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{
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/* Close the old debugging file */
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if (dfd)
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fclose(dfd);
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dfd = fopen(file,"w");
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if (dfd != NULL) {
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#if 0
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fprintf(dfd,"Slirp %s - Debugging Started.\n", SLIRP_VERSION);
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#endif
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fprintf(dfd,"Debugging Started level %i.\r\n",dbg);
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fflush(dfd);
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slirp_debug = dbg;
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} else {
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lprint("Error: Debugging file \"%s\" could not be opened: %s\r\n",
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file, strerror(errno));
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}
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}
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/*
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* Dump a packet in the same format as tcpdump -x
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*/
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#ifdef DEBUG
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void
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dump_packet(dat, n)
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void *dat;
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int n;
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{
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u_char *pptr = (u_char *)dat;
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int j,k;
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n /= 16;
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n++;
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DEBUG_MISC((dfd, "PACKET DUMPED: \n"));
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for(j = 0; j < n; j++) {
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for(k = 0; k < 6; k++)
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DEBUG_MISC((dfd, "%02x ", *pptr++));
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DEBUG_MISC((dfd, "\n"));
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fflush(dfd);
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}
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}
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#endif
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#if 0
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/*
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* Statistic routines
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*
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* These will print statistics to the screen, the debug file (dfd), or
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* a buffer, depending on "type", so that the stats can be sent over
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* the link as well.
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*/
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void
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ttystats(ttyp)
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struct ttys *ttyp;
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{
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struct slirp_ifstats *is = &ttyp->ifstats;
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char buff[512];
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lprint(" \r\n");
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if (if_comp & IF_COMPRESS)
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strcpy(buff, "on");
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else if (if_comp & IF_NOCOMPRESS)
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strcpy(buff, "off");
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else
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strcpy(buff, "off (for now)");
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lprint("Unit %d:\r\n", ttyp->unit);
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lprint(" using %s encapsulation (VJ compression is %s)\r\n", (
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#ifdef USE_PPP
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ttyp->proto==PROTO_PPP?"PPP":
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#endif
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"SLIP"), buff);
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lprint(" %d baudrate\r\n", ttyp->baud);
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lprint(" interface is %s\r\n", ttyp->up?"up":"down");
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lprint(" using fd %d, guardian pid is %d\r\n", ttyp->fd, ttyp->pid);
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#ifndef FULL_BOLT
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lprint(" towrite is %d bytes\r\n", ttyp->towrite);
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#endif
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if (ttyp->zeros)
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lprint(" %d zeros have been typed\r\n", ttyp->zeros);
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else if (ttyp->ones)
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lprint(" %d ones have been typed\r\n", ttyp->ones);
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lprint("Interface stats:\r\n");
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lprint(" %6d output packets sent (%d bytes)\r\n", is->out_pkts, is->out_bytes);
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lprint(" %6d output packets dropped (%d bytes)\r\n", is->out_errpkts, is->out_errbytes);
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lprint(" %6d input packets received (%d bytes)\r\n", is->in_pkts, is->in_bytes);
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lprint(" %6d input packets dropped (%d bytes)\r\n", is->in_errpkts, is->in_errbytes);
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lprint(" %6d bad input packets\r\n", is->in_mbad);
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}
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void
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allttystats()
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{
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struct ttys *ttyp;
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for (ttyp = ttys; ttyp; ttyp = ttyp->next)
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ttystats(ttyp);
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}
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#endif
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void
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ipstats()
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{
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lprint(" \r\n");
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lprint("IP stats:\r\n");
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lprint(" %6d total packets received (%d were unaligned)\r\n",
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ipstat.ips_total, ipstat.ips_unaligned);
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lprint(" %6d with incorrect version\r\n", ipstat.ips_badvers);
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lprint(" %6d with bad header checksum\r\n", ipstat.ips_badsum);
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lprint(" %6d with length too short (len < sizeof(iphdr))\r\n", ipstat.ips_tooshort);
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lprint(" %6d with length too small (len < ip->len)\r\n", ipstat.ips_toosmall);
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lprint(" %6d with bad header length\r\n", ipstat.ips_badhlen);
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lprint(" %6d with bad packet length\r\n", ipstat.ips_badlen);
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lprint(" %6d fragments received\r\n", ipstat.ips_fragments);
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lprint(" %6d fragments dropped\r\n", ipstat.ips_fragdropped);
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lprint(" %6d fragments timed out\r\n", ipstat.ips_fragtimeout);
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lprint(" %6d packets reassembled ok\r\n", ipstat.ips_reassembled);
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lprint(" %6d outgoing packets fragmented\r\n", ipstat.ips_fragmented);
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lprint(" %6d total outgoing fragments\r\n", ipstat.ips_ofragments);
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lprint(" %6d with bad protocol field\r\n", ipstat.ips_noproto);
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lprint(" %6d total packets delivered\r\n", ipstat.ips_delivered);
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}
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#if 0
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void
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vjstats()
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{
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lprint(" \r\n");
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lprint("VJ compression stats:\r\n");
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lprint(" %6d outbound packets (%d compressed)\r\n",
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comp_s.sls_packets, comp_s.sls_compressed);
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lprint(" %6d searches for connection stats (%d misses)\r\n",
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comp_s.sls_searches, comp_s.sls_misses);
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lprint(" %6d inbound uncompressed packets\r\n", comp_s.sls_uncompressedin);
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lprint(" %6d inbound compressed packets\r\n", comp_s.sls_compressedin);
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lprint(" %6d inbound unknown type packets\r\n", comp_s.sls_errorin);
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lprint(" %6d inbound packets tossed due to error\r\n", comp_s.sls_tossed);
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}
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#endif
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void
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tcpstats()
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{
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lprint(" \r\n");
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lprint("TCP stats:\r\n");
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lprint(" %6d packets sent\r\n", tcpstat.tcps_sndtotal);
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lprint(" %6d data packets (%d bytes)\r\n",
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tcpstat.tcps_sndpack, tcpstat.tcps_sndbyte);
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lprint(" %6d data packets retransmitted (%d bytes)\r\n",
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tcpstat.tcps_sndrexmitpack, tcpstat.tcps_sndrexmitbyte);
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lprint(" %6d ack-only packets (%d delayed)\r\n",
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tcpstat.tcps_sndacks, tcpstat.tcps_delack);
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lprint(" %6d URG only packets\r\n", tcpstat.tcps_sndurg);
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lprint(" %6d window probe packets\r\n", tcpstat.tcps_sndprobe);
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lprint(" %6d window update packets\r\n", tcpstat.tcps_sndwinup);
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lprint(" %6d control (SYN/FIN/RST) packets\r\n", tcpstat.tcps_sndctrl);
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lprint(" %6d times tcp_output did nothing\r\n", tcpstat.tcps_didnuttin);
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lprint(" %6d packets received\r\n", tcpstat.tcps_rcvtotal);
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lprint(" %6d acks (for %d bytes)\r\n",
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tcpstat.tcps_rcvackpack, tcpstat.tcps_rcvackbyte);
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lprint(" %6d duplicate acks\r\n", tcpstat.tcps_rcvdupack);
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lprint(" %6d acks for unsent data\r\n", tcpstat.tcps_rcvacktoomuch);
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lprint(" %6d packets received in sequence (%d bytes)\r\n",
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tcpstat.tcps_rcvpack, tcpstat.tcps_rcvbyte);
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lprint(" %6d completely duplicate packets (%d bytes)\r\n",
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tcpstat.tcps_rcvduppack, tcpstat.tcps_rcvdupbyte);
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lprint(" %6d packets with some duplicate data (%d bytes duped)\r\n",
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tcpstat.tcps_rcvpartduppack, tcpstat.tcps_rcvpartdupbyte);
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lprint(" %6d out-of-order packets (%d bytes)\r\n",
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tcpstat.tcps_rcvoopack, tcpstat.tcps_rcvoobyte);
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lprint(" %6d packets of data after window (%d bytes)\r\n",
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tcpstat.tcps_rcvpackafterwin, tcpstat.tcps_rcvbyteafterwin);
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lprint(" %6d window probes\r\n", tcpstat.tcps_rcvwinprobe);
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lprint(" %6d window update packets\r\n", tcpstat.tcps_rcvwinupd);
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lprint(" %6d packets received after close\r\n", tcpstat.tcps_rcvafterclose);
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lprint(" %6d discarded for bad checksums\r\n", tcpstat.tcps_rcvbadsum);
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lprint(" %6d discarded for bad header offset fields\r\n",
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tcpstat.tcps_rcvbadoff);
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lprint(" %6d connection requests\r\n", tcpstat.tcps_connattempt);
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lprint(" %6d connection accepts\r\n", tcpstat.tcps_accepts);
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lprint(" %6d connections established (including accepts)\r\n", tcpstat.tcps_connects);
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lprint(" %6d connections closed (including %d drop)\r\n",
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tcpstat.tcps_closed, tcpstat.tcps_drops);
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lprint(" %6d embryonic connections dropped\r\n", tcpstat.tcps_conndrops);
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lprint(" %6d segments we tried to get rtt (%d succeeded)\r\n",
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tcpstat.tcps_segstimed, tcpstat.tcps_rttupdated);
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lprint(" %6d retransmit timeouts\r\n", tcpstat.tcps_rexmttimeo);
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lprint(" %6d connections dropped by rxmt timeout\r\n",
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tcpstat.tcps_timeoutdrop);
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lprint(" %6d persist timeouts\r\n", tcpstat.tcps_persisttimeo);
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lprint(" %6d keepalive timeouts\r\n", tcpstat.tcps_keeptimeo);
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lprint(" %6d keepalive probes sent\r\n", tcpstat.tcps_keepprobe);
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lprint(" %6d connections dropped by keepalive\r\n", tcpstat.tcps_keepdrops);
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lprint(" %6d correct ACK header predictions\r\n", tcpstat.tcps_predack);
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lprint(" %6d correct data packet header predictions\n", tcpstat.tcps_preddat);
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lprint(" %6d TCP cache misses\r\n", tcpstat.tcps_socachemiss);
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/* lprint(" Packets received too short: %d\r\n", tcpstat.tcps_rcvshort); */
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/* lprint(" Segments dropped due to PAWS: %d\r\n", tcpstat.tcps_pawsdrop); */
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}
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void
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udpstats()
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{
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lprint(" \r\n");
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lprint("UDP stats:\r\n");
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lprint(" %6d datagrams received\r\n", udpstat.udps_ipackets);
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lprint(" %6d with packets shorter than header\r\n", udpstat.udps_hdrops);
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lprint(" %6d with bad checksums\r\n", udpstat.udps_badsum);
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lprint(" %6d with data length larger than packet\r\n", udpstat.udps_badlen);
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lprint(" %6d UDP socket cache misses\r\n", udpstat.udpps_pcbcachemiss);
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lprint(" %6d datagrams sent\r\n", udpstat.udps_opackets);
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}
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void
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icmpstats()
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{
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lprint(" \r\n");
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lprint("ICMP stats:\r\n");
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lprint(" %6d ICMP packets received\r\n", icmpstat.icps_received);
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lprint(" %6d were too short\r\n", icmpstat.icps_tooshort);
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lprint(" %6d with bad checksums\r\n", icmpstat.icps_checksum);
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lprint(" %6d with type not supported\r\n", icmpstat.icps_notsupp);
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lprint(" %6d with bad type feilds\r\n", icmpstat.icps_badtype);
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lprint(" %6d ICMP packets sent in reply\r\n", icmpstat.icps_reflect);
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}
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void
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mbufstats()
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{
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struct mbuf *m;
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int i;
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lprint(" \r\n");
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lprint("Mbuf stats:\r\n");
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lprint(" %6d mbufs allocated (%d max)\r\n", mbuf_alloced, mbuf_max);
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i = 0;
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for (m = m_freelist.m_next; m != &m_freelist; m = m->m_next)
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i++;
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lprint(" %6d mbufs on free list\r\n", i);
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i = 0;
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for (m = m_usedlist.m_next; m != &m_usedlist; m = m->m_next)
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i++;
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lprint(" %6d mbufs on used list\r\n", i);
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lprint(" %6d mbufs queued as packets\r\n\r\n", if_queued);
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}
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void
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sockstats()
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{
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char buff[256];
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int n;
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struct socket *so;
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lprint(" \r\n");
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lprint(
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"Proto[state] Sock Local Address, Port Remote Address, Port RecvQ SendQ\r\n");
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for (so = tcb.so_next; so != &tcb; so = so->so_next) {
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n = sprintf(buff, "tcp[%s]", so->so_tcpcb?tcpstates[so->so_tcpcb->t_state]:"NONE");
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while (n < 17)
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buff[n++] = ' ';
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buff[17] = 0;
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lprint("%s %3d %15s %5d ",
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buff, so->s,
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inet_ntoa(so->so_laddr), ntohs(so->so_lport));
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lprint("%15s %5d %5d %5d\r\n",
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inet_ntoa(so->so_faddr), ntohs(so->so_fport),
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so->so_rcv.sb_cc, so->so_snd.sb_cc);
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}
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for (so = udb.so_next; so != &udb; so = so->so_next) {
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n = sprintf(buff, "udp[%d sec]", (so->so_expire - curtime) / 1000);
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while (n < 17)
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buff[n++] = ' ';
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buff[17] = 0;
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lprint("%s %3d %15s %5d ",
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buff, so->s,
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inet_ntoa(so->so_laddr), ntohs(so->so_lport));
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lprint("%15s %5d %5d %5d\r\n",
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inet_ntoa(so->so_faddr), ntohs(so->so_fport),
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so->so_rcv.sb_cc, so->so_snd.sb_cc);
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}
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}
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#if 0
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void
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slirp_exit(exit_status)
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int exit_status;
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{
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struct ttys *ttyp;
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DEBUG_CALL("slirp_exit");
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DEBUG_ARG("exit_status = %d", exit_status);
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if (dostats) {
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lprint_print = (int (*) _P((void *, const char *, va_list)))vfprintf;
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if (!dfd)
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debug_init("slirp_stats", 0xf);
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lprint_arg = (char **)&dfd;
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ipstats();
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tcpstats();
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udpstats();
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icmpstats();
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mbufstats();
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sockstats();
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allttystats();
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vjstats();
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}
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for (ttyp = ttys; ttyp; ttyp = ttyp->next)
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tty_detached(ttyp, 1);
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if (slirp_forked) {
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/* Menendez time */
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if (kill(getppid(), SIGQUIT) < 0)
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lprint("Couldn't kill parent process %ld!\n",
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(long) getppid());
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}
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/* Restore the terminal if we gotta */
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if(slirp_tty_restore)
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tcsetattr(0,TCSANOW, &slirp_tty_settings); /* NOW DAMMIT! */
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exit(exit_status);
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}
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#endif
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