qemu/slirp/debug.c

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