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