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1.1 root 1: /*
2: * Copyright (c) 1985, 1988 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms are permitted
6: * provided that the above copyright notice and this paragraph are
7: * duplicated in all such forms and that any documentation,
8: * advertising materials, and other materials related to such
9: * distribution and use acknowledge that the software was developed
10: * by the University of California, Berkeley. The name of the
11: * University may not be used to endorse or promote products derived
12: * from this software without specific prior written permission.
13: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15: * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16: */
17:
18: #ifndef lint
19: static char sccsid[] = "@(#)ns.c 5.9 (Berkeley) 6/29/88";
20: #endif /* not lint */
21:
22: #include <stdio.h>
23: #include <errno.h>
24: #include <nlist.h>
25:
26: #include <sys/types.h>
27: #include <sys/socket.h>
28: #include <sys/socketvar.h>
29: #include <sys/mbuf.h>
30: #include <sys/protosw.h>
31:
32: #include <net/route.h>
33: #include <net/if.h>
34:
35: #include <netinet/tcp_fsm.h>
36:
37: #include <netns/ns.h>
38: #include <netns/ns_pcb.h>
39: #include <netns/idp.h>
40: #include <netns/idp_var.h>
41: #include <netns/ns_error.h>
42: #include <netns/sp.h>
43: #include <netns/spidp.h>
44: #include <netns/spp_timer.h>
45: #include <netns/spp_var.h>
46: #define SANAMES
47: #include <netns/spp_debug.h>
48:
49:
50: struct nspcb nspcb;
51: struct sppcb sppcb;
52: struct socket sockb;
53: extern int kmem;
54: extern int Aflag;
55: extern int aflag;
56: extern int nflag;
57: extern char *plural();
58: char *ns_prpr();
59:
60: static int first = 1;
61:
62: /*
63: * Print a summary of connections related to a Network Systems
64: * protocol. For SPP, also give state of connection.
65: * Listening processes (aflag) are suppressed unless the
66: * -a (all) flag is specified.
67: */
68:
69: nsprotopr(off, name)
70: off_t off;
71: char *name;
72: {
73: struct nspcb cb;
74: register struct nspcb *prev, *next;
75: int isspp;
76:
77: if (off == 0)
78: return;
79: isspp = strcmp(name, "spp") == 0;
80: klseek(kmem, off, 0);
81: read(kmem, (char *)&cb, sizeof (struct nspcb));
82: nspcb = cb;
83: prev = (struct nspcb *)off;
84: if (nspcb.nsp_next == (struct nspcb *)off)
85: return;
86: for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) {
87: off_t ppcb;
88:
89: next = nspcb.nsp_next;
90: klseek(kmem, (off_t)next, 0);
91: read(kmem, (char *)&nspcb, sizeof (nspcb));
92: if (nspcb.nsp_prev != prev) {
93: printf("???\n");
94: break;
95: }
96: if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) {
97: continue;
98: }
99: klseek(kmem, (off_t)nspcb.nsp_socket, 0);
100: read(kmem, (char *)&sockb, sizeof (sockb));
101: ppcb = (off_t) nspcb.nsp_pcb;
102: if (ppcb) {
103: if (isspp) {
104: klseek(kmem, ppcb, 0);
105: read(kmem, (char *)&sppcb, sizeof (sppcb));
106: } else continue;
107: } else
108: if (isspp) continue;
109: if (first) {
110: printf("Active NS connections");
111: if (aflag)
112: printf(" (including servers)");
113: putchar('\n');
114: if (Aflag)
115: printf("%-8.8s ", "PCB");
116: printf(Aflag ?
117: "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
118: "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
119: "Proto", "Recv-Q", "Send-Q",
120: "Local Address", "Foreign Address", "(state)");
121: first = 0;
122: }
123: if (Aflag)
124: printf("%8x ", ppcb);
125: printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc,
126: sockb.so_snd.sb_cc);
127: printf(" %-22.22s", ns_prpr(&nspcb.nsp_laddr));
128: printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr));
129: if (isspp) {
130: extern char *tcpstates[];
131: if (sppcb.s_state >= TCP_NSTATES)
132: printf(" %d", sppcb.s_state);
133: else
134: printf(" %s", tcpstates[sppcb.s_state]);
135: }
136: putchar('\n');
137: prev = next;
138: }
139: }
140: #define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0)
141:
142: /*
143: * Dump SPP statistics structure.
144: */
145: spp_stats(off, name)
146: off_t off;
147: char *name;
148: {
149: struct spp_istat spp_istat;
150: #define sppstat spp_istat.newstats
151:
152: if (off == 0)
153: return;
154: klseek(kmem, off, 0);
155: read(kmem, (char *)&spp_istat, sizeof (spp_istat));
156: printf("%s:\n", name);
157: ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets ");
158: ANY(spp_istat.gonawy, "connection", " terminated due to our end dying");
159: ANY(spp_istat.nonucn, "connection", " dropped due to inability to connect");
160: ANY(spp_istat.noconn, "connection", " dropped due to inability to connect");
161: ANY(spp_istat.notme, "connection", " incompleted due to mismatched id's");
162: ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's");
163: ANY(spp_istat.bdreas, "packet", " dropped out of sequence");
164: ANY(spp_istat.lstdup, "packet", " duplicating the highest packet");
165: ANY(spp_istat.notyet, "packet", " refused as exceeding allocation");
166: ANY(sppstat.spps_connattempt, "connection", " initiated");
167: ANY(sppstat.spps_accepts, "connection", " accepted");
168: ANY(sppstat.spps_connects, "connection", " established");
169: ANY(sppstat.spps_drops, "connection", " dropped");
170: ANY(sppstat.spps_conndrops, "embryonic connection", " dropped");
171: ANY(sppstat.spps_closed, "connection", " closed (includes drops)");
172: ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt");
173: ANY(sppstat.spps_rttupdated, "time", " we got rtt");
174: ANY(sppstat.spps_delack, "delayed ack", " sent");
175: ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout");
176: ANY(sppstat.spps_rexmttimeo, "retransmit timeout", "");
177: ANY(sppstat.spps_persisttimeo, "persist timeout", "");
178: ANY(sppstat.spps_keeptimeo, "keepalive timeout", "");
179: ANY(sppstat.spps_keepprobe, "keepalive probe", " sent");
180: ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive");
181: ANY(sppstat.spps_sndtotal, "total packet", " sent");
182: ANY(sppstat.spps_sndpack, "data packet", " sent");
183: ANY(sppstat.spps_sndbyte, "data byte", " sent");
184: ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted");
185: ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted");
186: ANY(sppstat.spps_sndacks, "ack-only packet", " sent");
187: ANY(sppstat.spps_sndprobe, "window probe", " sent");
188: ANY(sppstat.spps_sndurg, "packet", " sent with URG only");
189: ANY(sppstat.spps_sndwinup, "window update-only packet", " sent");
190: ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent");
191: ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet");
192: ANY(sppstat.spps_rcvtotal, "total packet", " received");
193: ANY(sppstat.spps_rcvpack, "packet", " received in sequence");
194: ANY(sppstat.spps_rcvbyte, "byte", " received in sequence");
195: ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs");
196: ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset");
197: ANY(sppstat.spps_rcvshort, "packet", " received too short");
198: ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received");
199: ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received");
200: ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data");
201: ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet");
202: ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received");
203: ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received");
204: ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window");
205: ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window");
206: ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'");
207: ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", "");
208: ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", "");
209: ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data");
210: ANY(sppstat.spps_rcvackpack, "rcvd ack packet", "");
211: ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks");
212: ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", "");
213: }
214: #undef ANY
215: #define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0)
216:
217: /*
218: * Dump IDP statistics structure.
219: */
220: idp_stats(off, name)
221: off_t off;
222: char *name;
223: {
224: struct idpstat idpstat;
225:
226: if (off == 0)
227: return;
228: klseek(kmem, off, 0);
229: read(kmem, (char *)&idpstat, sizeof (idpstat));
230: printf("%s:\n", name);
231: ANY(idpstat.idps_toosmall, "packet", " smaller than a header");
232: ANY(idpstat.idps_tooshort, "packet", " smaller than advertised");
233: ANY(idpstat.idps_badsum, "packet", " with bad checksums");
234: }
235:
236: static struct {
237: u_short code;
238: char *name;
239: char *where;
240: } ns_errnames[] = {
241: {0, "Unspecified Error", " at Destination"},
242: {1, "Bad Checksum", " at Destination"},
243: {2, "No Listener", " at Socket"},
244: {3, "Packet", " Refused due to lack of space at Destination"},
245: {01000, "Unspecified Error", " while gatewayed"},
246: {01001, "Bad Checksum", " while gatewayed"},
247: {01002, "Packet", " forwarded too many times"},
248: {01003, "Packet", " too large to be forwarded"},
249: {-1, 0, 0},
250: };
251:
252: /*
253: * Dump NS Error statistics structure.
254: */
255: /*ARGSUSED*/
256: nserr_stats(off, name)
257: off_t off;
258: char *name;
259: {
260: struct ns_errstat ns_errstat;
261: register int j;
262: register int histoprint = 1;
263: int z;
264:
265: if (off == 0)
266: return;
267: klseek(kmem, off, 0);
268: read(kmem, (char *)&ns_errstat, sizeof (ns_errstat));
269: printf("NS error statistics:\n");
270: ANY(ns_errstat.ns_es_error, "call", " to ns_error");
271: ANY(ns_errstat.ns_es_oldshort, "error",
272: " ignored due to insufficient addressing");
273: ANY(ns_errstat.ns_es_oldns_err, "error request",
274: " in response to error packets");
275: ANY(ns_errstat.ns_es_tooshort, "error packet",
276: " received incomplete");
277: ANY(ns_errstat.ns_es_badcode, "error packet",
278: " received of unknown type");
279: for(j = 0; j < NS_ERR_MAX; j ++) {
280: z = ns_errstat.ns_es_outhist[j];
281: if (z && histoprint) {
282: printf("Output Error Histogram:\n");
283: histoprint = 0;
284: }
285: ns_erputil(z, ns_errstat.ns_es_codes[j]);
286:
287: }
288: histoprint = 1;
289: for(j = 0; j < NS_ERR_MAX; j ++) {
290: z = ns_errstat.ns_es_inhist[j];
291: if (z && histoprint) {
292: printf("Input Error Histogram:\n");
293: histoprint = 0;
294: }
295: ns_erputil(z, ns_errstat.ns_es_codes[j]);
296: }
297: }
298: static
299: ns_erputil(z, c)
300: {
301: int j;
302: char codebuf[30];
303: char *name, *where;
304: for(j = 0;; j ++) {
305: if ((name = ns_errnames[j].name) == 0)
306: break;
307: if (ns_errnames[j].code == c)
308: break;
309: }
310: if (name == 0) {
311: if (c > 01000)
312: where = "in transit";
313: else
314: where = "at destination";
315: sprintf(codebuf, "Unknown XNS error code 0%o", c);
316: name = codebuf;
317: } else
318: where = ns_errnames[j].where;
319: ANY(z, name, where);
320: }
321: static struct sockaddr_ns ssns = {AF_NS};
322:
323: char *ns_prpr(x)
324: struct ns_addr *x;
325: {
326: extern char *ns_print();
327: struct sockaddr_ns *sns = &ssns;
328: sns->sns_addr = *x;
329: return(ns_print(sns));
330: }
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