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 /* Carry over one item from main.c so that the tty's restored. 20 * Only done when the tty being used is /dev/tty --RedWolf */ 21 #ifndef CONFIG_QEMU 22 extern struct termios slirp_tty_settings; 23 extern int slirp_tty_restore; 24 25 26 void 27 debug_init(file, dbg) 28 char *file; 29 int dbg; 30 { 31 /* Close the old debugging file */ 32 if (dfd) 33 fclose(dfd); 34 35 dfd = fopen(file,"w"); 36 if (dfd != NULL) { 37 #if 0 38 fprintf(dfd,"Slirp %s - Debugging Started.\n", SLIRP_VERSION); 39 #endif 40 fprintf(dfd,"Debugging Started level %i.\r\n",dbg); 41 fflush(dfd); 42 slirp_debug = dbg; 43 } else { 44 lprint("Error: Debugging file \"%s\" could not be opened: %s\r\n", 45 file, strerror(errno)); 46 } 47 } 48 49 /* 50 * Dump a packet in the same format as tcpdump -x 51 */ 52 #ifdef DEBUG 53 void 54 dump_packet(dat, n) 55 void *dat; 56 int n; 57 { 58 u_char *pptr = (u_char *)dat; 59 int j,k; 60 61 n /= 16; 62 n++; 63 DEBUG_MISC((dfd, "PACKET DUMPED: \n")); 64 for(j = 0; j < n; j++) { 65 for(k = 0; k < 6; k++) 66 DEBUG_MISC((dfd, "%02x ", *pptr++)); 67 DEBUG_MISC((dfd, "\n")); 68 fflush(dfd); 69 } 70 } 71 #endif 72 #endif 73 74 #ifdef LOG_ENABLED 75 #if 0 76 /* 77 * Statistic routines 78 * 79 * These will print statistics to the screen, the debug file (dfd), or 80 * a buffer, depending on "type", so that the stats can be sent over 81 * the link as well. 82 */ 83 84 static void 85 ttystats(ttyp) 86 struct ttys *ttyp; 87 { 88 struct slirp_ifstats *is = &ttyp->ifstats; 89 char buff[512]; 90 91 lprint(" \r\n"); 92 93 if (IF_COMP & IF_COMPRESS) 94 strcpy(buff, "on"); 95 else if (IF_COMP & IF_NOCOMPRESS) 96 strcpy(buff, "off"); 97 else 98 strcpy(buff, "off (for now)"); 99 lprint("Unit %d:\r\n", ttyp->unit); 100 lprint(" using %s encapsulation (VJ compression is %s)\r\n", ( 101 #ifdef USE_PPP 102 ttyp->proto==PROTO_PPP?"PPP": 103 #endif 104 "SLIP"), buff); 105 lprint(" %d baudrate\r\n", ttyp->baud); 106 lprint(" interface is %s\r\n", ttyp->up?"up":"down"); 107 lprint(" using fd %d, guardian pid is %d\r\n", ttyp->fd, ttyp->pid); 108 #ifndef FULL_BOLT 109 lprint(" towrite is %d bytes\r\n", ttyp->towrite); 110 #endif 111 if (ttyp->zeros) 112 lprint(" %d zeros have been typed\r\n", ttyp->zeros); 113 else if (ttyp->ones) 114 lprint(" %d ones have been typed\r\n", ttyp->ones); 115 lprint("Interface stats:\r\n"); 116 lprint(" %6d output packets sent (%d bytes)\r\n", is->out_pkts, is->out_bytes); 117 lprint(" %6d output packets dropped (%d bytes)\r\n", is->out_errpkts, is->out_errbytes); 118 lprint(" %6d input packets received (%d bytes)\r\n", is->in_pkts, is->in_bytes); 119 lprint(" %6d input packets dropped (%d bytes)\r\n", is->in_errpkts, is->in_errbytes); 120 lprint(" %6d bad input packets\r\n", is->in_mbad); 121 } 122 123 static void 124 allttystats(void) 125 { 126 struct ttys *ttyp; 127 128 for (ttyp = ttys; ttyp; ttyp = ttyp->next) 129 ttystats(ttyp); 130 } 131 #endif 132 133 static void 134 ipstats(void) 135 { 136 lprint(" \r\n"); 137 138 lprint("IP stats:\r\n"); 139 lprint(" %6d total packets received (%d were unaligned)\r\n", 140 ipstat.ips_total, ipstat.ips_unaligned); 141 lprint(" %6d with incorrect version\r\n", ipstat.ips_badvers); 142 lprint(" %6d with bad header checksum\r\n", ipstat.ips_badsum); 143 lprint(" %6d with length too short (len < sizeof(iphdr))\r\n", ipstat.ips_tooshort); 144 lprint(" %6d with length too small (len < ip->len)\r\n", ipstat.ips_toosmall); 145 lprint(" %6d with bad header length\r\n", ipstat.ips_badhlen); 146 lprint(" %6d with bad packet length\r\n", ipstat.ips_badlen); 147 lprint(" %6d fragments received\r\n", ipstat.ips_fragments); 148 lprint(" %6d fragments dropped\r\n", ipstat.ips_fragdropped); 149 lprint(" %6d fragments timed out\r\n", ipstat.ips_fragtimeout); 150 lprint(" %6d packets reassembled ok\r\n", ipstat.ips_reassembled); 151 lprint(" %6d outgoing packets fragmented\r\n", ipstat.ips_fragmented); 152 lprint(" %6d total outgoing fragments\r\n", ipstat.ips_ofragments); 153 lprint(" %6d with bad protocol field\r\n", ipstat.ips_noproto); 154 lprint(" %6d total packets delivered\r\n", ipstat.ips_delivered); 155 } 156 157 #ifndef CONFIG_QEMU 158 static void 159 vjstats(void) 160 { 161 lprint(" \r\n"); 162 163 lprint("VJ compression stats:\r\n"); 164 165 lprint(" %6d outbound packets (%d compressed)\r\n", 166 comp_s.sls_packets, comp_s.sls_compressed); 167 lprint(" %6d searches for connection stats (%d misses)\r\n", 168 comp_s.sls_searches, comp_s.sls_misses); 169 lprint(" %6d inbound uncompressed packets\r\n", comp_s.sls_uncompressedin); 170 lprint(" %6d inbound compressed packets\r\n", comp_s.sls_compressedin); 171 lprint(" %6d inbound unknown type packets\r\n", comp_s.sls_errorin); 172 lprint(" %6d inbound packets tossed due to error\r\n", comp_s.sls_tossed); 173 } 174 #endif 175 176 static void 177 tcpstats(void) 178 { 179 lprint(" \r\n"); 180 181 lprint("TCP stats:\r\n"); 182 183 lprint(" %6d packets sent\r\n", tcpstat.tcps_sndtotal); 184 lprint(" %6d data packets (%d bytes)\r\n", 185 tcpstat.tcps_sndpack, tcpstat.tcps_sndbyte); 186 lprint(" %6d data packets retransmitted (%d bytes)\r\n", 187 tcpstat.tcps_sndrexmitpack, tcpstat.tcps_sndrexmitbyte); 188 lprint(" %6d ack-only packets (%d delayed)\r\n", 189 tcpstat.tcps_sndacks, tcpstat.tcps_delack); 190 lprint(" %6d URG only packets\r\n", tcpstat.tcps_sndurg); 191 lprint(" %6d window probe packets\r\n", tcpstat.tcps_sndprobe); 192 lprint(" %6d window update packets\r\n", tcpstat.tcps_sndwinup); 193 lprint(" %6d control (SYN/FIN/RST) packets\r\n", tcpstat.tcps_sndctrl); 194 lprint(" %6d times tcp_output did nothing\r\n", tcpstat.tcps_didnuttin); 195 196 lprint(" %6d packets received\r\n", tcpstat.tcps_rcvtotal); 197 lprint(" %6d acks (for %d bytes)\r\n", 198 tcpstat.tcps_rcvackpack, tcpstat.tcps_rcvackbyte); 199 lprint(" %6d duplicate acks\r\n", tcpstat.tcps_rcvdupack); 200 lprint(" %6d acks for unsent data\r\n", tcpstat.tcps_rcvacktoomuch); 201 lprint(" %6d packets received in sequence (%d bytes)\r\n", 202 tcpstat.tcps_rcvpack, tcpstat.tcps_rcvbyte); 203 lprint(" %6d completely duplicate packets (%d bytes)\r\n", 204 tcpstat.tcps_rcvduppack, tcpstat.tcps_rcvdupbyte); 205 206 lprint(" %6d packets with some duplicate data (%d bytes duped)\r\n", 207 tcpstat.tcps_rcvpartduppack, tcpstat.tcps_rcvpartdupbyte); 208 lprint(" %6d out-of-order packets (%d bytes)\r\n", 209 tcpstat.tcps_rcvoopack, tcpstat.tcps_rcvoobyte); 210 lprint(" %6d packets of data after window (%d bytes)\r\n", 211 tcpstat.tcps_rcvpackafterwin, tcpstat.tcps_rcvbyteafterwin); 212 lprint(" %6d window probes\r\n", tcpstat.tcps_rcvwinprobe); 213 lprint(" %6d window update packets\r\n", tcpstat.tcps_rcvwinupd); 214 lprint(" %6d packets received after close\r\n", tcpstat.tcps_rcvafterclose); 215 lprint(" %6d discarded for bad checksums\r\n", tcpstat.tcps_rcvbadsum); 216 lprint(" %6d discarded for bad header offset fields\r\n", 217 tcpstat.tcps_rcvbadoff); 218 219 lprint(" %6d connection requests\r\n", tcpstat.tcps_connattempt); 220 lprint(" %6d connection accepts\r\n", tcpstat.tcps_accepts); 221 lprint(" %6d connections established (including accepts)\r\n", tcpstat.tcps_connects); 222 lprint(" %6d connections closed (including %d drop)\r\n", 223 tcpstat.tcps_closed, tcpstat.tcps_drops); 224 lprint(" %6d embryonic connections dropped\r\n", tcpstat.tcps_conndrops); 225 lprint(" %6d segments we tried to get rtt (%d succeeded)\r\n", 226 tcpstat.tcps_segstimed, tcpstat.tcps_rttupdated); 227 lprint(" %6d retransmit timeouts\r\n", tcpstat.tcps_rexmttimeo); 228 lprint(" %6d connections dropped by rxmt timeout\r\n", 229 tcpstat.tcps_timeoutdrop); 230 lprint(" %6d persist timeouts\r\n", tcpstat.tcps_persisttimeo); 231 lprint(" %6d keepalive timeouts\r\n", tcpstat.tcps_keeptimeo); 232 lprint(" %6d keepalive probes sent\r\n", tcpstat.tcps_keepprobe); 233 lprint(" %6d connections dropped by keepalive\r\n", tcpstat.tcps_keepdrops); 234 lprint(" %6d correct ACK header predictions\r\n", tcpstat.tcps_predack); 235 lprint(" %6d correct data packet header predictions\n", tcpstat.tcps_preddat); 236 lprint(" %6d TCP cache misses\r\n", tcpstat.tcps_socachemiss); 237 238 239 /* lprint(" Packets received too short: %d\r\n", tcpstat.tcps_rcvshort); */ 240 /* lprint(" Segments dropped due to PAWS: %d\r\n", tcpstat.tcps_pawsdrop); */ 241 242 } 243 244 static void 245 udpstats(void) 246 { 247 lprint(" \r\n"); 248 249 lprint("UDP stats:\r\n"); 250 lprint(" %6d datagrams received\r\n", udpstat.udps_ipackets); 251 lprint(" %6d with packets shorter than header\r\n", udpstat.udps_hdrops); 252 lprint(" %6d with bad checksums\r\n", udpstat.udps_badsum); 253 lprint(" %6d with data length larger than packet\r\n", udpstat.udps_badlen); 254 lprint(" %6d UDP socket cache misses\r\n", udpstat.udpps_pcbcachemiss); 255 lprint(" %6d datagrams sent\r\n", udpstat.udps_opackets); 256 } 257 258 static void 259 icmpstats(void) 260 { 261 lprint(" \r\n"); 262 lprint("ICMP stats:\r\n"); 263 lprint(" %6d ICMP packets received\r\n", icmpstat.icps_received); 264 lprint(" %6d were too short\r\n", icmpstat.icps_tooshort); 265 lprint(" %6d with bad checksums\r\n", icmpstat.icps_checksum); 266 lprint(" %6d with type not supported\r\n", icmpstat.icps_notsupp); 267 lprint(" %6d with bad type feilds\r\n", icmpstat.icps_badtype); 268 lprint(" %6d ICMP packets sent in reply\r\n", icmpstat.icps_reflect); 269 } 270 271 static void 272 mbufstats(void) 273 { 274 struct mbuf *m; 275 int i; 276 277 lprint(" \r\n"); 278 279 lprint("Mbuf stats:\r\n"); 280 281 lprint(" %6d mbufs allocated (%d max)\r\n", mbuf_alloced, mbuf_max); 282 283 i = 0; 284 for (m = m_freelist.m_next; m != &m_freelist; m = m->m_next) 285 i++; 286 lprint(" %6d mbufs on free list\r\n", i); 287 288 i = 0; 289 for (m = m_usedlist.m_next; m != &m_usedlist; m = m->m_next) 290 i++; 291 lprint(" %6d mbufs on used list\r\n", i); 292 lprint(" %6d mbufs queued as packets\r\n\r\n", if_queued); 293 } 294 295 static void 296 sockstats(void) 297 { 298 char buff[256]; 299 int n; 300 struct socket *so; 301 302 lprint(" \r\n"); 303 304 lprint( 305 "Proto[state] Sock Local Address, Port Remote Address, Port RecvQ SendQ\r\n"); 306 307 for (so = tcb.so_next; so != &tcb; so = so->so_next) { 308 309 n = sprintf(buff, "tcp[%s]", so->so_tcpcb?tcpstates[so->so_tcpcb->t_state]:"NONE"); 310 while (n < 17) 311 buff[n++] = ' '; 312 buff[17] = 0; 313 lprint("%s %3d %15s %5d ", 314 buff, so->s, 315 inet_ntoa(so->so_laddr), ntohs(so->so_lport)); 316 lprint("%15s %5d %5d %5d\r\n", 317 inet_ntoa(so->so_faddr), ntohs(so->so_fport), 318 so->so_rcv.sb_cc, so->so_snd.sb_cc); 319 } 320 321 for (so = udb.so_next; so != &udb; so = so->so_next) { 322 323 n = sprintf(buff, "udp[%d sec]", (so->so_expire - curtime) / 1000); 324 while (n < 17) 325 buff[n++] = ' '; 326 buff[17] = 0; 327 lprint("%s %3d %15s %5d ", 328 buff, so->s, 329 inet_ntoa(so->so_laddr), ntohs(so->so_lport)); 330 lprint("%15s %5d %5d %5d\r\n", 331 inet_ntoa(so->so_faddr), ntohs(so->so_fport), 332 so->so_rcv.sb_cc, so->so_snd.sb_cc); 333 } 334 } 335 #endif 336 337 #ifndef CONFIG_QEMU 338 void 339 slirp_exit(exit_status) 340 int exit_status; 341 { 342 struct ttys *ttyp; 343 344 DEBUG_CALL("slirp_exit"); 345 DEBUG_ARG("exit_status = %d", exit_status); 346 347 if (dostats) { 348 lprint_print = (int (*) _P((void *, const char *, va_list)))vfprintf; 349 if (!dfd) 350 debug_init("slirp_stats", 0xf); 351 lprint_arg = (char **)&dfd; 352 353 ipstats(); 354 tcpstats(); 355 udpstats(); 356 icmpstats(); 357 mbufstats(); 358 sockstats(); 359 allttystats(); 360 vjstats(); 361 } 362 363 for (ttyp = ttys; ttyp; ttyp = ttyp->next) 364 tty_detached(ttyp, 1); 365 366 if (slirp_forked) { 367 /* Menendez time */ 368 if (kill(getppid(), SIGQUIT) < 0) 369 lprint("Couldn't kill parent process %ld!\n", 370 (long) getppid()); 371 } 372 373 /* Restore the terminal if we gotta */ 374 if(slirp_tty_restore) 375 tcsetattr(0,TCSANOW, &slirp_tty_settings); /* NOW DAMMIT! */ 376 exit(exit_status); 377 } 378 #endif 379 380 void 381 slirp_stats(void) 382 { 383 #ifdef LOG_ENABLED 384 ipstats(); 385 tcpstats(); 386 udpstats(); 387 icmpstats(); 388 mbufstats(); 389 sockstats(); 390 #else 391 lprint("SLIRP statistics code not compiled.\n"); 392 #endif 393 } 394
