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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:
48: /*
49: * Dump a packet in the same format as tcpdump -x
50: */
51: #ifdef DEBUG
52: void
53: dump_packet(dat, n)
54: void *dat;
55: int n;
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: #if 0
73: /*
74: * Statistic routines
75: *
76: * These will print statistics to the screen, the debug file (dfd), or
77: * a buffer, depending on "type", so that the stats can be sent over
78: * the link as well.
79: */
80:
81: void
82: ttystats(ttyp)
83: struct ttys *ttyp;
84: {
85: struct slirp_ifstats *is = &ttyp->ifstats;
86: char buff[512];
87:
88: lprint(" \r\n");
89:
90: if (if_comp & IF_COMPRESS)
91: strcpy(buff, "on");
92: else if (if_comp & IF_NOCOMPRESS)
93: strcpy(buff, "off");
94: else
95: strcpy(buff, "off (for now)");
96: lprint("Unit %d:\r\n", ttyp->unit);
97: lprint(" using %s encapsulation (VJ compression is %s)\r\n", (
98: #ifdef USE_PPP
99: ttyp->proto==PROTO_PPP?"PPP":
100: #endif
101: "SLIP"), buff);
102: lprint(" %d baudrate\r\n", ttyp->baud);
103: lprint(" interface is %s\r\n", ttyp->up?"up":"down");
104: lprint(" using fd %d, guardian pid is %d\r\n", ttyp->fd, ttyp->pid);
105: #ifndef FULL_BOLT
106: lprint(" towrite is %d bytes\r\n", ttyp->towrite);
107: #endif
108: if (ttyp->zeros)
109: lprint(" %d zeros have been typed\r\n", ttyp->zeros);
110: else if (ttyp->ones)
111: lprint(" %d ones have been typed\r\n", ttyp->ones);
112: lprint("Interface stats:\r\n");
113: lprint(" %6d output packets sent (%d bytes)\r\n", is->out_pkts, is->out_bytes);
114: lprint(" %6d output packets dropped (%d bytes)\r\n", is->out_errpkts, is->out_errbytes);
115: lprint(" %6d input packets received (%d bytes)\r\n", is->in_pkts, is->in_bytes);
116: lprint(" %6d input packets dropped (%d bytes)\r\n", is->in_errpkts, is->in_errbytes);
117: lprint(" %6d bad input packets\r\n", is->in_mbad);
118: }
119:
120: void
121: allttystats()
122: {
123: struct ttys *ttyp;
124:
125: for (ttyp = ttys; ttyp; ttyp = ttyp->next)
126: ttystats(ttyp);
127: }
128: #endif
129:
130: void
131: ipstats()
132: {
133: lprint(" \r\n");
134:
135: lprint("IP stats:\r\n");
136: lprint(" %6d total packets received (%d were unaligned)\r\n",
137: ipstat.ips_total, ipstat.ips_unaligned);
138: lprint(" %6d with incorrect version\r\n", ipstat.ips_badvers);
139: lprint(" %6d with bad header checksum\r\n", ipstat.ips_badsum);
140: lprint(" %6d with length too short (len < sizeof(iphdr))\r\n", ipstat.ips_tooshort);
141: lprint(" %6d with length too small (len < ip->len)\r\n", ipstat.ips_toosmall);
142: lprint(" %6d with bad header length\r\n", ipstat.ips_badhlen);
143: lprint(" %6d with bad packet length\r\n", ipstat.ips_badlen);
144: lprint(" %6d fragments received\r\n", ipstat.ips_fragments);
145: lprint(" %6d fragments dropped\r\n", ipstat.ips_fragdropped);
146: lprint(" %6d fragments timed out\r\n", ipstat.ips_fragtimeout);
147: lprint(" %6d packets reassembled ok\r\n", ipstat.ips_reassembled);
148: lprint(" %6d outgoing packets fragmented\r\n", ipstat.ips_fragmented);
149: lprint(" %6d total outgoing fragments\r\n", ipstat.ips_ofragments);
150: lprint(" %6d with bad protocol field\r\n", ipstat.ips_noproto);
151: lprint(" %6d total packets delivered\r\n", ipstat.ips_delivered);
152: }
153:
154: #if 0
155: void
156: vjstats()
157: {
158: lprint(" \r\n");
159:
160: lprint("VJ compression stats:\r\n");
161:
162: lprint(" %6d outbound packets (%d compressed)\r\n",
163: comp_s.sls_packets, comp_s.sls_compressed);
164: lprint(" %6d searches for connection stats (%d misses)\r\n",
165: comp_s.sls_searches, comp_s.sls_misses);
166: lprint(" %6d inbound uncompressed packets\r\n", comp_s.sls_uncompressedin);
167: lprint(" %6d inbound compressed packets\r\n", comp_s.sls_compressedin);
168: lprint(" %6d inbound unknown type packets\r\n", comp_s.sls_errorin);
169: lprint(" %6d inbound packets tossed due to error\r\n", comp_s.sls_tossed);
170: }
171: #endif
172:
173: void
174: tcpstats()
175: {
176: lprint(" \r\n");
177:
178: lprint("TCP stats:\r\n");
179:
180: lprint(" %6d packets sent\r\n", tcpstat.tcps_sndtotal);
181: lprint(" %6d data packets (%d bytes)\r\n",
182: tcpstat.tcps_sndpack, tcpstat.tcps_sndbyte);
183: lprint(" %6d data packets retransmitted (%d bytes)\r\n",
184: tcpstat.tcps_sndrexmitpack, tcpstat.tcps_sndrexmitbyte);
185: lprint(" %6d ack-only packets (%d delayed)\r\n",
186: tcpstat.tcps_sndacks, tcpstat.tcps_delack);
187: lprint(" %6d URG only packets\r\n", tcpstat.tcps_sndurg);
188: lprint(" %6d window probe packets\r\n", tcpstat.tcps_sndprobe);
189: lprint(" %6d window update packets\r\n", tcpstat.tcps_sndwinup);
190: lprint(" %6d control (SYN/FIN/RST) packets\r\n", tcpstat.tcps_sndctrl);
191: lprint(" %6d times tcp_output did nothing\r\n", tcpstat.tcps_didnuttin);
192:
193: lprint(" %6d packets received\r\n", tcpstat.tcps_rcvtotal);
194: lprint(" %6d acks (for %d bytes)\r\n",
195: tcpstat.tcps_rcvackpack, tcpstat.tcps_rcvackbyte);
196: lprint(" %6d duplicate acks\r\n", tcpstat.tcps_rcvdupack);
197: lprint(" %6d acks for unsent data\r\n", tcpstat.tcps_rcvacktoomuch);
198: lprint(" %6d packets received in sequence (%d bytes)\r\n",
199: tcpstat.tcps_rcvpack, tcpstat.tcps_rcvbyte);
200: lprint(" %6d completely duplicate packets (%d bytes)\r\n",
201: tcpstat.tcps_rcvduppack, tcpstat.tcps_rcvdupbyte);
202:
203: lprint(" %6d packets with some duplicate data (%d bytes duped)\r\n",
204: tcpstat.tcps_rcvpartduppack, tcpstat.tcps_rcvpartdupbyte);
205: lprint(" %6d out-of-order packets (%d bytes)\r\n",
206: tcpstat.tcps_rcvoopack, tcpstat.tcps_rcvoobyte);
207: lprint(" %6d packets of data after window (%d bytes)\r\n",
208: tcpstat.tcps_rcvpackafterwin, tcpstat.tcps_rcvbyteafterwin);
209: lprint(" %6d window probes\r\n", tcpstat.tcps_rcvwinprobe);
210: lprint(" %6d window update packets\r\n", tcpstat.tcps_rcvwinupd);
211: lprint(" %6d packets received after close\r\n", tcpstat.tcps_rcvafterclose);
212: lprint(" %6d discarded for bad checksums\r\n", tcpstat.tcps_rcvbadsum);
213: lprint(" %6d discarded for bad header offset fields\r\n",
214: tcpstat.tcps_rcvbadoff);
215:
216: lprint(" %6d connection requests\r\n", tcpstat.tcps_connattempt);
217: lprint(" %6d connection accepts\r\n", tcpstat.tcps_accepts);
218: lprint(" %6d connections established (including accepts)\r\n", tcpstat.tcps_connects);
219: lprint(" %6d connections closed (including %d drop)\r\n",
220: tcpstat.tcps_closed, tcpstat.tcps_drops);
221: lprint(" %6d embryonic connections dropped\r\n", tcpstat.tcps_conndrops);
222: lprint(" %6d segments we tried to get rtt (%d succeeded)\r\n",
223: tcpstat.tcps_segstimed, tcpstat.tcps_rttupdated);
224: lprint(" %6d retransmit timeouts\r\n", tcpstat.tcps_rexmttimeo);
225: lprint(" %6d connections dropped by rxmt timeout\r\n",
226: tcpstat.tcps_timeoutdrop);
227: lprint(" %6d persist timeouts\r\n", tcpstat.tcps_persisttimeo);
228: lprint(" %6d keepalive timeouts\r\n", tcpstat.tcps_keeptimeo);
229: lprint(" %6d keepalive probes sent\r\n", tcpstat.tcps_keepprobe);
230: lprint(" %6d connections dropped by keepalive\r\n", tcpstat.tcps_keepdrops);
231: lprint(" %6d correct ACK header predictions\r\n", tcpstat.tcps_predack);
232: lprint(" %6d correct data packet header predictions\n", tcpstat.tcps_preddat);
233: lprint(" %6d TCP cache misses\r\n", tcpstat.tcps_socachemiss);
234:
235:
236: /* lprint(" Packets received too short: %d\r\n", tcpstat.tcps_rcvshort); */
237: /* lprint(" Segments dropped due to PAWS: %d\r\n", tcpstat.tcps_pawsdrop); */
238:
239: }
240:
241: void
242: udpstats()
243: {
244: lprint(" \r\n");
245:
246: lprint("UDP stats:\r\n");
247: lprint(" %6d datagrams received\r\n", udpstat.udps_ipackets);
248: lprint(" %6d with packets shorter than header\r\n", udpstat.udps_hdrops);
249: lprint(" %6d with bad checksums\r\n", udpstat.udps_badsum);
250: lprint(" %6d with data length larger than packet\r\n", udpstat.udps_badlen);
251: lprint(" %6d UDP socket cache misses\r\n", udpstat.udpps_pcbcachemiss);
252: lprint(" %6d datagrams sent\r\n", udpstat.udps_opackets);
253: }
254:
255: void
256: icmpstats()
257: {
258: lprint(" \r\n");
259: lprint("ICMP stats:\r\n");
260: lprint(" %6d ICMP packets received\r\n", icmpstat.icps_received);
261: lprint(" %6d were too short\r\n", icmpstat.icps_tooshort);
262: lprint(" %6d with bad checksums\r\n", icmpstat.icps_checksum);
263: lprint(" %6d with type not supported\r\n", icmpstat.icps_notsupp);
264: lprint(" %6d with bad type feilds\r\n", icmpstat.icps_badtype);
265: lprint(" %6d ICMP packets sent in reply\r\n", icmpstat.icps_reflect);
266: }
267:
268: void
269: mbufstats()
270: {
271: struct mbuf *m;
272: int i;
273:
274: lprint(" \r\n");
275:
276: lprint("Mbuf stats:\r\n");
277:
278: lprint(" %6d mbufs allocated (%d max)\r\n", mbuf_alloced, mbuf_max);
279:
280: i = 0;
281: for (m = m_freelist.m_next; m != &m_freelist; m = m->m_next)
282: i++;
283: lprint(" %6d mbufs on free list\r\n", i);
284:
285: i = 0;
286: for (m = m_usedlist.m_next; m != &m_usedlist; m = m->m_next)
287: i++;
288: lprint(" %6d mbufs on used list\r\n", i);
289: lprint(" %6d mbufs queued as packets\r\n\r\n", if_queued);
290: }
291:
292: void
293: sockstats()
294: {
1.1.1.2 ! root 295: char addr[INET_ADDRSTRLEN];
1.1 root 296: char buff[256];
297: int n;
298: struct socket *so;
299:
300: lprint(" \r\n");
301:
302: lprint(
303: "Proto[state] Sock Local Address, Port Remote Address, Port RecvQ SendQ\r\n");
304:
305: for (so = tcb.so_next; so != &tcb; so = so->so_next) {
306:
307: n = sprintf(buff, "tcp[%s]", so->so_tcpcb?tcpstates[so->so_tcpcb->t_state]:"NONE");
308: while (n < 17)
309: buff[n++] = ' ';
310: buff[17] = 0;
311: lprint("%s %3d %15s %5d ",
312: buff, so->s,
1.1.1.2 ! root 313: inet_ntop(AF_INET, &so->so_laddr, addr, sizeof(addr)),
! 314: ntohs(so->so_lport));
1.1 root 315: lprint("%15s %5d %5d %5d\r\n",
1.1.1.2 ! root 316: inet_ntop(AF_INET, &so->so_faddr, addr, sizeof(addr)),
! 317: ntohs(so->so_fport),
1.1 root 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,
1.1.1.2 ! root 329: inet_ntop(AF_INET, &so->so_laddr, addr, sizeof(addr)),
! 330: ntohs(so->so_lport));
1.1 root 331: lprint("%15s %5d %5d %5d\r\n",
1.1.1.2 ! root 332: inet_ntop(AF_INET, &so->so_faddr, addr, sizeof(addr)),
! 333: ntohs(so->so_fport),
1.1 root 334: so->so_rcv.sb_cc, so->so_snd.sb_cc);
335: }
336: }
337:
338: #if 0
339: void
340: slirp_exit(exit_status)
341: int exit_status;
342: {
343: struct ttys *ttyp;
344:
345: DEBUG_CALL("slirp_exit");
346: DEBUG_ARG("exit_status = %d", exit_status);
347:
348: if (dostats) {
349: lprint_print = (int (*) _P((void *, const char *, va_list)))vfprintf;
350: if (!dfd)
351: debug_init("slirp_stats", 0xf);
352: lprint_arg = (char **)&dfd;
353:
354: ipstats();
355: tcpstats();
356: udpstats();
357: icmpstats();
358: mbufstats();
359: sockstats();
360: allttystats();
361: vjstats();
362: }
363:
364: for (ttyp = ttys; ttyp; ttyp = ttyp->next)
365: tty_detached(ttyp, 1);
366:
367: if (slirp_forked) {
368: /* Menendez time */
369: if (kill(getppid(), SIGQUIT) < 0)
370: lprint("Couldn't kill parent process %ld!\n",
371: (long) getppid());
372: }
373:
374: /* Restore the terminal if we gotta */
375: if(slirp_tty_restore)
376: tcsetattr(0,TCSANOW, &slirp_tty_settings); /* NOW DAMMIT! */
377: exit(exit_status);
378: }
379: #endif
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