Annotation of src/usr.bin/netstat/ns.c, Revision 1.3
1.3 ! millert 1: /* $OpenBSD: ns.c,v 1.2 1996/06/26 05:37:25 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: ns.c,v 1.8 1995/10/03 21:42:46 thorpej Exp $ */
3:
4: /*
5: * Copyright (c) 1983, 1988, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: #if 0
39: static char sccsid[] = "from: @(#)ns.c 8.1 (Berkeley) 6/6/93";
40: #else
1.3 ! millert 41: static char *rcsid = "$OpenBSD: ns.c,v 1.2 1996/06/26 05:37:25 deraadt Exp $";
1.1 deraadt 42: #endif
43: #endif /* not lint */
44:
45: #include <sys/param.h>
46: #include <sys/socket.h>
47: #include <sys/socketvar.h>
48: #include <sys/mbuf.h>
49: #include <sys/protosw.h>
50:
51: #include <net/route.h>
52: #include <net/if.h>
53:
54: #include <netinet/tcp_fsm.h>
55:
56: #include <netns/ns.h>
57: #include <netns/ns_pcb.h>
58: #include <netns/idp.h>
59: #include <netns/idp_var.h>
60: #include <netns/ns_error.h>
61: #include <netns/sp.h>
62: #include <netns/spidp.h>
63: #include <netns/spp_timer.h>
64: #include <netns/spp_var.h>
65: #define SANAMES
66: #include <netns/spp_debug.h>
67:
68: #include <nlist.h>
69: #include <errno.h>
70: #include <stdio.h>
71: #include <string.h>
72: #include "netstat.h"
73:
74: struct nspcb nspcb;
75: struct sppcb sppcb;
76: struct socket sockb;
77:
78: static char *ns_prpr __P((struct ns_addr *));
79: static void ns_erputil __P((int, int));
80:
81: static int first = 1;
82:
83: /*
84: * Print a summary of connections related to a Network Systems
85: * protocol. For SPP, also give state of connection.
86: * Listening processes (aflag) are suppressed unless the
87: * -a (all) flag is specified.
88: */
89:
90: void
91: nsprotopr(off, name)
92: u_long off;
93: char *name;
94: {
95: struct nspcb cb;
96: register struct nspcb *prev, *next;
97: int isspp;
98:
99: if (off == 0)
100: return;
101: isspp = strcmp(name, "spp") == 0;
102: kread(off, (char *)&cb, sizeof (struct nspcb));
103: nspcb = cb;
104: prev = (struct nspcb *)off;
105: if (nspcb.nsp_next == (struct nspcb *)off)
106: return;
107: for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) {
108: u_long ppcb;
109:
110: next = nspcb.nsp_next;
111: kread((u_long)next, (char *)&nspcb, sizeof (nspcb));
112: if (nspcb.nsp_prev != prev) {
113: printf("???\n");
114: break;
115: }
116: if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) {
117: continue;
118: }
119: kread((u_long)nspcb.nsp_socket,
120: (char *)&sockb, sizeof (sockb));
121: ppcb = (u_long) nspcb.nsp_pcb;
122: if (ppcb) {
123: if (isspp) {
124: kread(ppcb, (char *)&sppcb, sizeof (sppcb));
125: } else continue;
126: } else
127: if (isspp) continue;
128: if (first) {
129: printf("Active NS connections");
130: if (aflag)
131: printf(" (including servers)");
132: putchar('\n');
133: if (Aflag)
134: printf("%-8.8s ", "PCB");
135: printf(Aflag ?
136: "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
137: "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
138: "Proto", "Recv-Q", "Send-Q",
139: "Local Address", "Foreign Address", "(state)");
140: first = 0;
141: }
142: if (Aflag)
1.3 ! millert 143: printf("%8lx ", ppcb);
! 144: printf("%-5.5s %6ld %6ld ", name, sockb.so_rcv.sb_cc,
1.1 deraadt 145: sockb.so_snd.sb_cc);
146: printf(" %-22.22s", ns_prpr(&nspcb.nsp_laddr));
147: printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr));
148: if (isspp) {
149: extern char *tcpstates[];
150: if (sppcb.s_state >= TCP_NSTATES)
151: printf(" %d", sppcb.s_state);
152: else
153: printf(" %s", tcpstates[sppcb.s_state]);
154: }
155: putchar('\n');
156: prev = next;
157: }
158: }
159: #define ANY(x,y,z) \
1.3 ! millert 160: ((x) ? printf("\t%ld %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0)
1.1 deraadt 161:
162: /*
163: * Dump SPP statistics structure.
164: */
165: void
166: spp_stats(off, name)
167: u_long off;
168: char *name;
169: {
170: struct spp_istat spp_istat;
171: #define sppstat spp_istat.newstats
172:
173: if (off == 0)
174: return;
175: kread(off, (char *)&spp_istat, sizeof (spp_istat));
176: printf("%s:\n", name);
1.3 ! millert 177: ANY((long)spp_istat.nonucn, "connection",
! 178: " dropped due to no new sockets ");
! 179: ANY((long)spp_istat.gonawy, "connection",
! 180: " terminated due to our end dying");
! 181: ANY((long)spp_istat.nonucn, "connection",
1.1 deraadt 182: " dropped due to inability to connect");
1.3 ! millert 183: ANY((long)spp_istat.noconn, "connection",
1.1 deraadt 184: " dropped due to inability to connect");
1.3 ! millert 185: ANY((long)spp_istat.notme, "connection",
1.1 deraadt 186: " incompleted due to mismatched id's");
1.3 ! millert 187: ANY((long)spp_istat.wrncon, "connection",
! 188: " dropped due to mismatched id's");
! 189: ANY((long)spp_istat.bdreas, "packet", " dropped out of sequence");
! 190: ANY((long)spp_istat.lstdup, "packet",
! 191: " duplicating the highest packet");
! 192: ANY((long)spp_istat.notyet, "packet",
! 193: " refused as exceeding allocation");
1.1 deraadt 194: ANY(sppstat.spps_connattempt, "connection", " initiated");
195: ANY(sppstat.spps_accepts, "connection", " accepted");
196: ANY(sppstat.spps_connects, "connection", " established");
197: ANY(sppstat.spps_drops, "connection", " dropped");
198: ANY(sppstat.spps_conndrops, "embryonic connection", " dropped");
199: ANY(sppstat.spps_closed, "connection", " closed (includes drops)");
200: ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt");
201: ANY(sppstat.spps_rttupdated, "time", " we got rtt");
202: ANY(sppstat.spps_delack, "delayed ack", " sent");
203: ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout");
204: ANY(sppstat.spps_rexmttimeo, "retransmit timeout", "");
205: ANY(sppstat.spps_persisttimeo, "persist timeout", "");
206: ANY(sppstat.spps_keeptimeo, "keepalive timeout", "");
207: ANY(sppstat.spps_keepprobe, "keepalive probe", " sent");
208: ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive");
209: ANY(sppstat.spps_sndtotal, "total packet", " sent");
210: ANY(sppstat.spps_sndpack, "data packet", " sent");
211: ANY(sppstat.spps_sndbyte, "data byte", " sent");
212: ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted");
213: ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted");
214: ANY(sppstat.spps_sndacks, "ack-only packet", " sent");
215: ANY(sppstat.spps_sndprobe, "window probe", " sent");
216: ANY(sppstat.spps_sndurg, "packet", " sent with URG only");
217: ANY(sppstat.spps_sndwinup, "window update-only packet", " sent");
218: ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent");
219: ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet");
220: ANY(sppstat.spps_rcvtotal, "total packet", " received");
221: ANY(sppstat.spps_rcvpack, "packet", " received in sequence");
222: ANY(sppstat.spps_rcvbyte, "byte", " received in sequence");
223: ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs");
224: ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset");
225: ANY(sppstat.spps_rcvshort, "packet", " received too short");
226: ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received");
227: ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received");
228: ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data");
229: ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet");
230: ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received");
231: ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received");
232: ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window");
233: ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window");
234: ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'");
235: ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", "");
236: ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", "");
237: ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data");
238: ANY(sppstat.spps_rcvackpack, "rcvd ack packet", "");
239: ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks");
240: ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", "");
241: }
242: #undef ANY
243: #define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0)
244:
245: /*
246: * Dump IDP statistics structure.
247: */
248: void
249: idp_stats(off, name)
250: u_long off;
251: char *name;
252: {
253: struct idpstat idpstat;
254:
255: if (off == 0)
256: return;
257: kread(off, (char *)&idpstat, sizeof (idpstat));
258: printf("%s:\n", name);
259: ANY(idpstat.idps_toosmall, "packet", " smaller than a header");
260: ANY(idpstat.idps_tooshort, "packet", " smaller than advertised");
261: ANY(idpstat.idps_badsum, "packet", " with bad checksums");
262: }
263:
264: static struct {
265: u_short code;
266: char *name;
267: char *where;
268: } ns_errnames[] = {
269: {0, "Unspecified Error", " at Destination"},
270: {1, "Bad Checksum", " at Destination"},
271: {2, "No Listener", " at Socket"},
272: {3, "Packet", " Refused due to lack of space at Destination"},
273: {01000, "Unspecified Error", " while gatewayed"},
274: {01001, "Bad Checksum", " while gatewayed"},
275: {01002, "Packet", " forwarded too many times"},
276: {01003, "Packet", " too large to be forwarded"},
277: {-1, 0, 0},
278: };
279:
280: /*
281: * Dump NS Error statistics structure.
282: */
283: /*ARGSUSED*/
284: void
285: nserr_stats(off, name)
286: u_long off;
287: char *name;
288: {
289: struct ns_errstat ns_errstat;
290: register int j;
291: register int histoprint = 1;
292: int z;
293:
294: if (off == 0)
295: return;
296: kread(off, (char *)&ns_errstat, sizeof (ns_errstat));
297: printf("NS error statistics:\n");
298: ANY(ns_errstat.ns_es_error, "call", " to ns_error");
299: ANY(ns_errstat.ns_es_oldshort, "error",
300: " ignored due to insufficient addressing");
301: ANY(ns_errstat.ns_es_oldns_err, "error request",
302: " in response to error packets");
303: ANY(ns_errstat.ns_es_tooshort, "error packet",
304: " received incomplete");
305: ANY(ns_errstat.ns_es_badcode, "error packet",
306: " received of unknown type");
307: for(j = 0; j < NS_ERR_MAX; j ++) {
308: z = ns_errstat.ns_es_outhist[j];
309: if (z && histoprint) {
310: printf("Output Error Histogram:\n");
311: histoprint = 0;
312: }
313: ns_erputil(z, ns_errstat.ns_es_codes[j]);
314:
315: }
316: histoprint = 1;
317: for(j = 0; j < NS_ERR_MAX; j ++) {
318: z = ns_errstat.ns_es_inhist[j];
319: if (z && histoprint) {
320: printf("Input Error Histogram:\n");
321: histoprint = 0;
322: }
323: ns_erputil(z, ns_errstat.ns_es_codes[j]);
324: }
325: }
326:
327: static void
328: ns_erputil(z, c)
329: int z, c;
330: {
331: int j;
332: char codebuf[30];
333: char *name, *where;
334:
335: for(j = 0;; j ++) {
336: if ((name = ns_errnames[j].name) == 0)
337: break;
338: if (ns_errnames[j].code == c)
339: break;
340: }
341: if (name == 0) {
342: if (c > 01000)
343: where = "in transit";
344: else
345: where = "at destination";
346: sprintf(codebuf, "Unknown XNS error code 0%o", c);
347: name = codebuf;
348: } else
349: where = ns_errnames[j].where;
350: ANY(z, name, where);
351: }
352:
353: static struct sockaddr_ns ssns = {AF_NS};
354:
355: static
356: char *ns_prpr(x)
357: struct ns_addr *x;
358: {
359: struct sockaddr_ns *sns = &ssns;
360:
361: sns->sns_addr = *x;
362: return(ns_print((struct sockaddr *)sns));
363: }
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