slirp/debug.c

   1 /*
   2  * Copyright (c) 1995 Danny Gasparovski.
   3  * Portions copyright (c) 2000 Kelly Price.
   4  *
   5  * Please read the file COPYRIGHT for the
   6  * terms and conditions of the copyright.
   7  */
   8
   9 #include <slirp.h>
  10
  11 FILE *dfd = NULL;
  12 #ifdef DEBUG
  13 int dostats = 1;
  14 #else
  15 int dostats = 0;
  16 #endif
  17 int slirp_debug = 0;
  18
  19 extern char *strerror _P((int));
  20
  21 /* Carry over one item from main.c so that the tty's restored.
  22  * Only done when the tty being used is /dev/tty --RedWolf */
  23 extern struct termios slirp_tty_settings;
  24 extern int slirp_tty_restore;
  25
  26
  27 void
  28 debug_init(file, dbg)
  29         char *file;
  30         int dbg;
  31 {
  32         /* Close the old debugging file */
  33         if (dfd)
  34            fclose(dfd);
  35
  36         dfd = fopen(file,"w");
  37         if (dfd != NULL) {
  38 #if 0
  39                 fprintf(dfd,"Slirp %s - Debugging Started.\n", SLIRP_VERSION);
  40 #endif
  41                 fprintf(dfd,"Debugging Started level %i.\r\n",dbg);
  42                 fflush(dfd);
  43                 slirp_debug = dbg;
  44         } else {
  45                 lprint("Error: Debugging file \"%s\" could not be opened: %s\r\n",
  46                         file, strerror(errno));
  47         }
  48 }
  49
  50 /*
  51  * Dump a packet in the same format as tcpdump -x
  52  */
  53 #ifdef DEBUG
  54 void
  55 dump_packet(dat, n)
  56         void *dat;
  57         int n;
  58 {
  59         u_char *pptr = (u_char *)dat;
  60         int j,k;
  61
  62         n /= 16;
  63         n++;
  64         DEBUG_MISC((dfd, "PACKET DUMPED: \n"));
  65         for(j = 0; j < n; j++) {
  66                 for(k = 0; k < 6; k++)
  67                         DEBUG_MISC((dfd, "%02x ", *pptr++));
  68                 DEBUG_MISC((dfd, "\n"));
  69                 fflush(dfd);
  70         }
  71 }
  72 #endif
  73
  74 #if 0
  75 /*
  76  * Statistic routines
  77  *
  78  * These will print statistics to the screen, the debug file (dfd), or
  79  * a buffer, depending on "type", so that the stats can be sent over
  80  * the link as well.
  81  */
  82
  83 void
  84 ttystats(ttyp)
  85         struct ttys *ttyp;
  86 {
  87         struct slirp_ifstats *is = &ttyp->ifstats;
  88         char buff[512];
  89
  90         lprint(" \r\n");
  91
  92         if (if_comp & IF_COMPRESS)
  93            strcpy(buff, "on");
  94         else if (if_comp & IF_NOCOMPRESS)
  95            strcpy(buff, "off");
  96         else
  97            strcpy(buff, "off (for now)");
  98         lprint("Unit %d:\r\n", ttyp->unit);
  99         lprint("  using %s encapsulation (VJ compression is %s)\r\n", (
 100 #ifdef USE_PPP
 101                ttyp->proto==PROTO_PPP?"PPP":
 102 #endif
 103                "SLIP"), buff);
 104         lprint("  %d baudrate\r\n", ttyp->baud);
 105         lprint("  interface is %s\r\n", ttyp->up?"up":"down");
 106         lprint("  using fd %d, guardian pid is %d\r\n", ttyp->fd, ttyp->pid);
 107 #ifndef FULL_BOLT
 108         lprint("  towrite is %d bytes\r\n", ttyp->towrite);
 109 #endif
 110         if (ttyp->zeros)
 111            lprint("  %d zeros have been typed\r\n", ttyp->zeros);
 112         else if (ttyp->ones)
 113            lprint("  %d ones have been typed\r\n", ttyp->ones);
 114         lprint("Interface stats:\r\n");
 115         lprint("  %6d output packets sent (%d bytes)\r\n", is->out_pkts, is->out_bytes);
 116         lprint("  %6d output packets dropped (%d bytes)\r\n", is->out_errpkts, is->out_errbytes);
 117         lprint("  %6d input packets received (%d bytes)\r\n", is->in_pkts, is->in_bytes);
 118         lprint("  %6d input packets dropped (%d bytes)\r\n", is->in_errpkts, is->in_errbytes);
 119         lprint("  %6d bad input packets\r\n", is->in_mbad);
 120 }
 121
 122 void
 123 allttystats()
 124 {
 125         struct ttys *ttyp;
 126
 127         for (ttyp = ttys; ttyp; ttyp = ttyp->next)
 128            ttystats(ttyp);
 129 }
 130 #endif
 131
 132 void
 133 ipstats()
 134 {
 135         lprint(" \r\n");
 136
 137         lprint("IP stats:\r\n");
 138         lprint("  %6d total packets received (%d were unaligned)\r\n",
 139                         ipstat.ips_total, ipstat.ips_unaligned);
 140         lprint("  %6d with incorrect version\r\n", ipstat.ips_badvers);
 141         lprint("  %6d with bad header checksum\r\n", ipstat.ips_badsum);
 142         lprint("  %6d with length too short (len < sizeof(iphdr))\r\n", ipstat.ips_tooshort);
 143         lprint("  %6d with length too small (len < ip->len)\r\n", ipstat.ips_toosmall);
 144         lprint("  %6d with bad header length\r\n", ipstat.ips_badhlen);
 145         lprint("  %6d with bad packet length\r\n", ipstat.ips_badlen);
 146         lprint("  %6d fragments received\r\n", ipstat.ips_fragments);
 147         lprint("  %6d fragments dropped\r\n", ipstat.ips_fragdropped);
 148         lprint("  %6d fragments timed out\r\n", ipstat.ips_fragtimeout);
 149         lprint("  %6d packets reassembled ok\r\n", ipstat.ips_reassembled);
 150         lprint("  %6d outgoing packets fragmented\r\n", ipstat.ips_fragmented);
 151         lprint("  %6d total outgoing fragments\r\n", ipstat.ips_ofragments);
 152         lprint("  %6d with bad protocol field\r\n", ipstat.ips_noproto);
 153         lprint("  %6d total packets delivered\r\n", ipstat.ips_delivered);
 154 }
 155
 156 #if 0
 157 void
 158 vjstats()
 159 {
 160         lprint(" \r\n");
 161
 162         lprint("VJ compression stats:\r\n");
 163
 164         lprint("  %6d outbound packets (%d compressed)\r\n",
 165                comp_s.sls_packets, comp_s.sls_compressed);
 166         lprint("  %6d searches for connection stats (%d misses)\r\n",
 167                comp_s.sls_searches, comp_s.sls_misses);
 168         lprint("  %6d inbound uncompressed packets\r\n", comp_s.sls_uncompressedin);
 169         lprint("  %6d inbound compressed packets\r\n", comp_s.sls_compressedin);
 170         lprint("  %6d inbound unknown type packets\r\n", comp_s.sls_errorin);
 171         lprint("  %6d inbound packets tossed due to error\r\n", comp_s.sls_tossed);
 172 }
 173 #endif
 174
 175 void
 176 tcpstats()
 177 {
 178         lprint(" \r\n");
 179
 180         lprint("TCP stats:\r\n");
 181
 182         lprint("  %6d packets sent\r\n", tcpstat.tcps_sndtotal);
 183         lprint("          %6d data packets (%d bytes)\r\n",
 184                         tcpstat.tcps_sndpack, tcpstat.tcps_sndbyte);
 185         lprint("          %6d data packets retransmitted (%d bytes)\r\n",
 186                         tcpstat.tcps_sndrexmitpack, tcpstat.tcps_sndrexmitbyte);
 187         lprint("          %6d ack-only packets (%d delayed)\r\n",
 188                         tcpstat.tcps_sndacks, tcpstat.tcps_delack);
 189         lprint("          %6d URG only packets\r\n", tcpstat.tcps_sndurg);
 190         lprint("          %6d window probe packets\r\n", tcpstat.tcps_sndprobe);
 191         lprint("          %6d window update packets\r\n", tcpstat.tcps_sndwinup);
 192         lprint("          %6d control (SYN/FIN/RST) packets\r\n", tcpstat.tcps_sndctrl);
 193         lprint("          %6d times tcp_output did nothing\r\n", tcpstat.tcps_didnuttin);
 194
 195         lprint("  %6d packets received\r\n", tcpstat.tcps_rcvtotal);
 196         lprint("          %6d acks (for %d bytes)\r\n",
 197                         tcpstat.tcps_rcvackpack, tcpstat.tcps_rcvackbyte);
 198         lprint("          %6d duplicate acks\r\n", tcpstat.tcps_rcvdupack);
 199         lprint("          %6d acks for unsent data\r\n", tcpstat.tcps_rcvacktoomuch);
 200         lprint("          %6d packets received in sequence (%d bytes)\r\n",
 201                         tcpstat.tcps_rcvpack, tcpstat.tcps_rcvbyte);
 202         lprint("          %6d completely duplicate packets (%d bytes)\r\n",
 203                         tcpstat.tcps_rcvduppack, tcpstat.tcps_rcvdupbyte);
 204
 205         lprint("          %6d packets with some duplicate data (%d bytes duped)\r\n",
 206                         tcpstat.tcps_rcvpartduppack, tcpstat.tcps_rcvpartdupbyte);
 207         lprint("          %6d out-of-order packets (%d bytes)\r\n",
 208                         tcpstat.tcps_rcvoopack, tcpstat.tcps_rcvoobyte);
 209         lprint("          %6d packets of data after window (%d bytes)\r\n",
 210                         tcpstat.tcps_rcvpackafterwin, tcpstat.tcps_rcvbyteafterwin);
 211         lprint("          %6d window probes\r\n", tcpstat.tcps_rcvwinprobe);
 212         lprint("          %6d window update packets\r\n", tcpstat.tcps_rcvwinupd);
 213         lprint("          %6d packets received after close\r\n", tcpstat.tcps_rcvafterclose);
 214         lprint("          %6d discarded for bad checksums\r\n", tcpstat.tcps_rcvbadsum);
 215         lprint("          %6d discarded for bad header offset fields\r\n",
 216                         tcpstat.tcps_rcvbadoff);
 217
 218         lprint("  %6d connection requests\r\n", tcpstat.tcps_connattempt);
 219         lprint("  %6d connection accepts\r\n", tcpstat.tcps_accepts);
 220         lprint("  %6d connections established (including accepts)\r\n", tcpstat.tcps_connects);
 221         lprint("  %6d connections closed (including %d drop)\r\n",
 222                         tcpstat.tcps_closed, tcpstat.tcps_drops);
 223         lprint("  %6d embryonic connections dropped\r\n", tcpstat.tcps_conndrops);
 224         lprint("  %6d segments we tried to get rtt (%d succeeded)\r\n",
 225                         tcpstat.tcps_segstimed, tcpstat.tcps_rttupdated);
 226         lprint("  %6d retransmit timeouts\r\n", tcpstat.tcps_rexmttimeo);
 227         lprint("          %6d connections dropped by rxmt timeout\r\n",
 228                         tcpstat.tcps_timeoutdrop);
 229         lprint("  %6d persist timeouts\r\n", tcpstat.tcps_persisttimeo);
 230         lprint("  %6d keepalive timeouts\r\n", tcpstat.tcps_keeptimeo);
 231         lprint("          %6d keepalive probes sent\r\n", tcpstat.tcps_keepprobe);
 232         lprint("          %6d connections dropped by keepalive\r\n", tcpstat.tcps_keepdrops);
 233         lprint("  %6d correct ACK header predictions\r\n", tcpstat.tcps_predack);
 234         lprint("  %6d correct data packet header predictions\n", tcpstat.tcps_preddat);
 235         lprint("  %6d TCP cache misses\r\n", tcpstat.tcps_socachemiss);
 236
 237
 238 /*      lprint("    Packets received too short:         %d\r\n", tcpstat.tcps_rcvshort); */
 239 /*      lprint("    Segments dropped due to PAWS:       %d\r\n", tcpstat.tcps_pawsdrop); */
 240
 241 }
 242
 243 void
 244 udpstats()
 245 {
 246         lprint(" \r\n");
 247
 248         lprint("UDP stats:\r\n");
 249         lprint("  %6d datagrams received\r\n", udpstat.udps_ipackets);
 250         lprint("  %6d with packets shorter than header\r\n", udpstat.udps_hdrops);
 251         lprint("  %6d with bad checksums\r\n", udpstat.udps_badsum);
 252         lprint("  %6d with data length larger than packet\r\n", udpstat.udps_badlen);
 253         lprint("  %6d UDP socket cache misses\r\n", udpstat.udpps_pcbcachemiss);
 254         lprint("  %6d datagrams sent\r\n", udpstat.udps_opackets);
 255 }
 256
 257 void
 258 icmpstats()
 259 {
 260         lprint(" \r\n");
 261         lprint("ICMP stats:\r\n");
 262         lprint("  %6d ICMP packets received\r\n", icmpstat.icps_received);
 263         lprint("  %6d were too short\r\n", icmpstat.icps_tooshort);
 264         lprint("  %6d with bad checksums\r\n", icmpstat.icps_checksum);
 265         lprint("  %6d with type not supported\r\n", icmpstat.icps_notsupp);
 266         lprint("  %6d with bad type feilds\r\n", icmpstat.icps_badtype);
 267         lprint("  %6d ICMP packets sent in reply\r\n", icmpstat.icps_reflect);
 268 }
 269
 270 void
 271 mbufstats()
 272 {
 273         struct mbuf *m;
 274         int i;
 275
 276         lprint(" \r\n");
 277
 278         lprint("Mbuf stats:\r\n");
 279
 280         lprint("  %6d mbufs allocated (%d max)\r\n", mbuf_alloced, mbuf_max);
 281
 282         i = 0;
 283         for (m = m_freelist.m_next; m != &m_freelist; m = m->m_next)
 284                 i++;
 285         lprint("  %6d mbufs on free list\r\n",  i);
 286
 287         i = 0;
 288         for (m = m_usedlist.m_next; m != &m_usedlist; m = m->m_next)
 289                 i++;
 290         lprint("  %6d mbufs on used list\r\n",  i);
 291         lprint("  %6d mbufs queued as packets\r\n\r\n", if_queued);
 292 }
 293
 294 void
 295 sockstats()
 296 {
 297         char buff[256];
 298         int n;
 299         struct socket *so;
 300
 301         lprint(" \r\n");
 302
 303         lprint(
 304            "Proto[state]     Sock     Local Address, Port  Remote Address, Port RecvQ SendQ\r\n");
 305
 306         for (so = tcb.so_next; so != &tcb; so = so->so_next) {
 307
 308                 n = sprintf(buff, "tcp[%s]", so->so_tcpcb?tcpstates[so->so_tcpcb->t_state]:"NONE");
 309                 while (n < 17)
 310                    buff[n++] = ' ';
 311                 buff[17] = 0;
 312                 lprint("%s %3d   %15s %5d ",
 313                                 buff, so->s,
 314                                 inet_ntoa(so->so_laddr), ntohs(so->so_lport));
 315                 lprint("%15s %5d %5d %5d\r\n",
 316                                 inet_ntoa(so->so_faddr), ntohs(so->so_fport),
 317                                 so->so_rcv.sb_cc, so->so_snd.sb_cc);
 318         }
 319
 320         for (so = udb.so_next; so != &udb; so = so->so_next) {
 321
 322                 n = sprintf(buff, "udp[%d sec]", (so->so_expire - curtime) / 1000);
 323                 while (n < 17)
 324                    buff[n++] = ' ';
 325                 buff[17] = 0;
 326                 lprint("%s %3d  %15s %5d  ",
 327                                 buff, so->s,
 328                                 inet_ntoa(so->so_laddr), ntohs(so->so_lport));
 329                 lprint("%15s %5d %5d %5d\r\n",
 330                                 inet_ntoa(so->so_faddr), ntohs(so->so_fport),
 331                                 so->so_rcv.sb_cc, so->so_snd.sb_cc);
 332         }
 333 }
 334
 335 #if 0
 336 void
 337 slirp_exit(exit_status)
 338         int exit_status;
 339 {
 340         struct ttys *ttyp;
 341
 342         DEBUG_CALL("slirp_exit");
 343         DEBUG_ARG("exit_status = %d", exit_status);
 344
 345         if (dostats) {
 346                 lprint_print = (int (*) _P((void *, const char *, va_list)))vfprintf;
 347                 if (!dfd)
 348                    debug_init("slirp_stats", 0xf);
 349                 lprint_arg = (char **)&dfd;
 350
 351                 ipstats();
 352                 tcpstats();
 353                 udpstats();
 354                 icmpstats();
 355                 mbufstats();
 356                 sockstats();
 357                 allttystats();
 358                 vjstats();
 359         }
 360
 361         for (ttyp = ttys; ttyp; ttyp = ttyp->next)
 362            tty_detached(ttyp, 1);
 363
 364         if (slirp_forked) {
 365                 /* Menendez time */
 366                 if (kill(getppid(), SIGQUIT) < 0)
 367                         lprint("Couldn't kill parent process %ld!\n",
 368                             (long) getppid());
 369         }
 370
 371         /* Restore the terminal if we gotta */
 372         if(slirp_tty_restore)
 373           tcsetattr(0,TCSANOW, &slirp_tty_settings);  /* NOW DAMMIT! */
 374         exit(exit_status);
 375 }
 376 #endif