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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 provided
6: * that: (1) source distributions retain this entire copyright notice and
7: * comment, and (2) distributions including binaries display the following
8: * acknowledgement: ``This product includes software developed by the
9: * University of California, Berkeley and its contributors'' in the
10: * documentation or other materials provided with the distribution and in
11: * all advertising materials mentioning features or use of this software.
12: * Neither the name of the University nor the names of its contributors may
13: * be used to endorse or promote products derived from this software without
14: * specific prior written permission.
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
16: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
17: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18: */
19:
20: #ifndef lint
21: static char sccsid[] = "@(#)ns.c 5.12 (Berkeley) 6/18/90";
22: #endif /* not lint */
23:
24: #include <stdio.h>
25: #include <errno.h>
26: #include <nlist.h>
27:
28: #include <sys/param.h>
29: #include <sys/socket.h>
30: #include <sys/socketvar.h>
31: #include <sys/mbuf.h>
32: #include <sys/protosw.h>
33:
34: #include <net/route.h>
35: #include <net/if.h>
36:
37: #include <netinet/tcp_fsm.h>
38:
39: #include <netns/ns.h>
40: #include <netns/ns_pcb.h>
41: #include <netns/idp.h>
42: #include <netns/idp_var.h>
43: #include <netns/ns_error.h>
44: #include <netns/sp.h>
45: #include <netns/spidp.h>
46: #include <netns/spp_timer.h>
47: #include <netns/spp_var.h>
48: #define SANAMES
49: #include <netns/spp_debug.h>
50:
51:
52: struct nspcb nspcb;
53: struct sppcb sppcb;
54: struct socket sockb;
55: extern int Aflag;
56: extern int aflag;
57: extern int nflag;
58: extern char *plural();
59: char *ns_prpr();
60:
61: static int first = 1;
62:
63: /*
64: * Print a summary of connections related to a Network Systems
65: * protocol. For SPP, also give state of connection.
66: * Listening processes (aflag) are suppressed unless the
67: * -a (all) flag is specified.
68: */
69:
70: nsprotopr(off, name)
71: off_t off;
72: char *name;
73: {
74: struct nspcb cb;
75: register struct nspcb *prev, *next;
76: int isspp;
77:
78: if (off == 0)
79: return;
80: isspp = strcmp(name, "spp") == 0;
81: kvm_read(off, (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: kvm_read((off_t)next, (char *)&nspcb, sizeof (nspcb));
91: if (nspcb.nsp_prev != prev) {
92: printf("???\n");
93: break;
94: }
95: if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) {
96: continue;
97: }
98: kvm_read((off_t)nspcb.nsp_socket,
99: (char *)&sockb, sizeof (sockb));
100: ppcb = (off_t) nspcb.nsp_pcb;
101: if (ppcb) {
102: if (isspp) {
103: kvm_read(ppcb, (char *)&sppcb, sizeof (sppcb));
104: } else continue;
105: } else
106: if (isspp) continue;
107: if (first) {
108: printf("Active NS connections");
109: if (aflag)
110: printf(" (including servers)");
111: putchar('\n');
112: if (Aflag)
113: printf("%-8.8s ", "PCB");
114: printf(Aflag ?
115: "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
116: "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
117: "Proto", "Recv-Q", "Send-Q",
118: "Local Address", "Foreign Address", "(state)");
119: first = 0;
120: }
121: if (Aflag)
122: printf("%8x ", ppcb);
123: printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc,
124: sockb.so_snd.sb_cc);
125: printf(" %-22.22s", ns_prpr(&nspcb.nsp_laddr));
126: printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr));
127: if (isspp) {
128: extern char *tcpstates[];
129: if (sppcb.s_state >= TCP_NSTATES)
130: printf(" %d", sppcb.s_state);
131: else
132: printf(" %s", tcpstates[sppcb.s_state]);
133: }
134: putchar('\n');
135: prev = next;
136: }
137: }
138: #define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0)
139:
140: /*
141: * Dump SPP statistics structure.
142: */
143: spp_stats(off, name)
144: off_t off;
145: char *name;
146: {
147: struct spp_istat spp_istat;
148: #define sppstat spp_istat.newstats
149:
150: if (off == 0)
151: return;
152: kvm_read(off, (char *)&spp_istat, sizeof (spp_istat));
153: printf("%s:\n", name);
154: ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets ");
155: ANY(spp_istat.gonawy, "connection", " terminated due to our end dying");
156: ANY(spp_istat.nonucn, "connection", " dropped due to inability to connect");
157: ANY(spp_istat.noconn, "connection", " dropped due to inability to connect");
158: ANY(spp_istat.notme, "connection", " incompleted due to mismatched id's");
159: ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's");
160: ANY(spp_istat.bdreas, "packet", " dropped out of sequence");
161: ANY(spp_istat.lstdup, "packet", " duplicating the highest packet");
162: ANY(spp_istat.notyet, "packet", " refused as exceeding allocation");
163: ANY(sppstat.spps_connattempt, "connection", " initiated");
164: ANY(sppstat.spps_accepts, "connection", " accepted");
165: ANY(sppstat.spps_connects, "connection", " established");
166: ANY(sppstat.spps_drops, "connection", " dropped");
167: ANY(sppstat.spps_conndrops, "embryonic connection", " dropped");
168: ANY(sppstat.spps_closed, "connection", " closed (includes drops)");
169: ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt");
170: ANY(sppstat.spps_rttupdated, "time", " we got rtt");
171: ANY(sppstat.spps_delack, "delayed ack", " sent");
172: ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout");
173: ANY(sppstat.spps_rexmttimeo, "retransmit timeout", "");
174: ANY(sppstat.spps_persisttimeo, "persist timeout", "");
175: ANY(sppstat.spps_keeptimeo, "keepalive timeout", "");
176: ANY(sppstat.spps_keepprobe, "keepalive probe", " sent");
177: ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive");
178: ANY(sppstat.spps_sndtotal, "total packet", " sent");
179: ANY(sppstat.spps_sndpack, "data packet", " sent");
180: ANY(sppstat.spps_sndbyte, "data byte", " sent");
181: ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted");
182: ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted");
183: ANY(sppstat.spps_sndacks, "ack-only packet", " sent");
184: ANY(sppstat.spps_sndprobe, "window probe", " sent");
185: ANY(sppstat.spps_sndurg, "packet", " sent with URG only");
186: ANY(sppstat.spps_sndwinup, "window update-only packet", " sent");
187: ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent");
188: ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet");
189: ANY(sppstat.spps_rcvtotal, "total packet", " received");
190: ANY(sppstat.spps_rcvpack, "packet", " received in sequence");
191: ANY(sppstat.spps_rcvbyte, "byte", " received in sequence");
192: ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs");
193: ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset");
194: ANY(sppstat.spps_rcvshort, "packet", " received too short");
195: ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received");
196: ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received");
197: ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data");
198: ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet");
199: ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received");
200: ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received");
201: ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window");
202: ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window");
203: ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'");
204: ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", "");
205: ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", "");
206: ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data");
207: ANY(sppstat.spps_rcvackpack, "rcvd ack packet", "");
208: ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks");
209: ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", "");
210: }
211: #undef ANY
212: #define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0)
213:
214: /*
215: * Dump IDP statistics structure.
216: */
217: idp_stats(off, name)
218: off_t off;
219: char *name;
220: {
221: struct idpstat idpstat;
222:
223: if (off == 0)
224: return;
225: kvm_read(off, (char *)&idpstat, sizeof (idpstat));
226: printf("%s:\n", name);
227: ANY(idpstat.idps_toosmall, "packet", " smaller than a header");
228: ANY(idpstat.idps_tooshort, "packet", " smaller than advertised");
229: ANY(idpstat.idps_badsum, "packet", " with bad checksums");
230: }
231:
232: static struct {
233: u_short code;
234: char *name;
235: char *where;
236: } ns_errnames[] = {
237: {0, "Unspecified Error", " at Destination"},
238: {1, "Bad Checksum", " at Destination"},
239: {2, "No Listener", " at Socket"},
240: {3, "Packet", " Refused due to lack of space at Destination"},
241: {01000, "Unspecified Error", " while gatewayed"},
242: {01001, "Bad Checksum", " while gatewayed"},
243: {01002, "Packet", " forwarded too many times"},
244: {01003, "Packet", " too large to be forwarded"},
245: {-1, 0, 0},
246: };
247:
248: /*
249: * Dump NS Error statistics structure.
250: */
251: /*ARGSUSED*/
252: nserr_stats(off, name)
253: off_t off;
254: char *name;
255: {
256: struct ns_errstat ns_errstat;
257: register int j;
258: register int histoprint = 1;
259: int z;
260:
261: if (off == 0)
262: return;
263: kvm_read(off, (char *)&ns_errstat, sizeof (ns_errstat));
264: printf("NS error statistics:\n");
265: ANY(ns_errstat.ns_es_error, "call", " to ns_error");
266: ANY(ns_errstat.ns_es_oldshort, "error",
267: " ignored due to insufficient addressing");
268: ANY(ns_errstat.ns_es_oldns_err, "error request",
269: " in response to error packets");
270: ANY(ns_errstat.ns_es_tooshort, "error packet",
271: " received incomplete");
272: ANY(ns_errstat.ns_es_badcode, "error packet",
273: " received of unknown type");
274: for(j = 0; j < NS_ERR_MAX; j ++) {
275: z = ns_errstat.ns_es_outhist[j];
276: if (z && histoprint) {
277: printf("Output Error Histogram:\n");
278: histoprint = 0;
279: }
280: ns_erputil(z, ns_errstat.ns_es_codes[j]);
281:
282: }
283: histoprint = 1;
284: for(j = 0; j < NS_ERR_MAX; j ++) {
285: z = ns_errstat.ns_es_inhist[j];
286: if (z && histoprint) {
287: printf("Input Error Histogram:\n");
288: histoprint = 0;
289: }
290: ns_erputil(z, ns_errstat.ns_es_codes[j]);
291: }
292: }
293: static
294: ns_erputil(z, c)
295: {
296: int j;
297: char codebuf[30];
298: char *name, *where;
299: for(j = 0;; j ++) {
300: if ((name = ns_errnames[j].name) == 0)
301: break;
302: if (ns_errnames[j].code == c)
303: break;
304: }
305: if (name == 0) {
306: if (c > 01000)
307: where = "in transit";
308: else
309: where = "at destination";
310: sprintf(codebuf, "Unknown XNS error code 0%o", c);
311: name = codebuf;
312: } else
313: where = ns_errnames[j].where;
314: ANY(z, name, where);
315: }
316: static struct sockaddr_ns ssns = {AF_NS};
317:
318: char *ns_prpr(x)
319: struct ns_addr *x;
320: {
321: extern char *ns_print();
322: struct sockaddr_ns *sns = &ssns;
323: sns->sns_addr = *x;
324: return(ns_print(sns));
325: }
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