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Annotation of qemu/slirp/debug.c, revision 1.1

1.1     ! root        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

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