File:  [Qemu by Fabrice Bellard] / qemu / slirp / debug.c
Revision 1.1.1.3 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 16:54:32 2018 UTC (3 years, 3 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu0105, qemu0104, qemu0103, qemu0102, qemu0101, qemu0100, HEAD
qemu 0.10.0

    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: }

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