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
11FILE *dfd = NULL;
12#ifdef DEBUG
13int dostats = 1;
14#else
15int dostats = 0;
16#endif
17int 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
22extern struct termios slirp_tty_settings;
23extern int slirp_tty_restore;
24
25
26void
27debug_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
53void
54dump_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
84static void
85ttystats(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
123static void
124allttystats(void)
125{
126	struct ttys *ttyp;
127
128	for (ttyp = ttys; ttyp; ttyp = ttyp->next)
129	   ttystats(ttyp);
130}
131#endif
132
133static void
134ipstats(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
158static void
159vjstats(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
176static void
177tcpstats(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
244static void
245udpstats(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
258static void
259icmpstats(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
271static void
272mbufstats(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
295static void
296sockstats(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
338void
339slirp_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
380void
381slirp_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