Commit | Line | Data |
---|---|---|
bbb841ef SL |
1 | /* implog.c 4.1 82/04/04 */ |
2 | ||
3 | #include <stdio.h> | |
4 | #include <time.h> | |
5 | #include <signal.h> | |
6 | #include <sgtty.h> | |
7 | #include <sys/types.h> | |
8 | #include <sys/stat.h> | |
9 | #include <sys/socket.h> | |
10 | #include <net/in.h> | |
11 | #define IMPLEADERS | |
12 | #include <net/if_imp.h> | |
13 | ||
14 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
15 | ||
16 | u_char buf[1024]; | |
17 | int showdata = 1; | |
18 | int showcontents = 0; | |
19 | int follow = 0; | |
20 | int link = -1; | |
21 | int host = -1; | |
22 | int imp = -1; | |
23 | int packettype = -1; | |
24 | extern int errno; | |
25 | int log; | |
26 | char *logfile = "/usr/adm/implog"; | |
27 | ||
28 | /* | |
29 | * Socket address, internet style, with | |
30 | * unused space taken by timestamp and packet | |
31 | * size. | |
32 | */ | |
33 | struct sockstamp { | |
34 | short sin_family; | |
35 | u_short sin_port; | |
36 | struct in_addr sin_addr; | |
37 | time_t sin_time; | |
38 | int sin_cc; | |
39 | }; | |
40 | struct sockstamp from; | |
41 | ||
42 | main(argc, argv) | |
43 | char *argv[]; | |
44 | { | |
45 | struct stat b; | |
46 | int size; | |
47 | char *cp; | |
48 | ||
49 | argc--, argv++; | |
50 | while (argc > 0 && argv[0][0] == '-') { | |
51 | if (strcmp(*argv, "-D") == 0) { | |
52 | showdata = 0; | |
53 | argv++, argc--; | |
54 | continue; | |
55 | } | |
56 | if (strcmp(*argv, "-f") == 0) { | |
57 | follow++; | |
58 | argv++, argc--; | |
59 | continue; | |
60 | } | |
61 | if (strcmp(*argv, "-c") == 0) { | |
62 | showcontents++; | |
63 | argv++, argc--; | |
64 | continue; | |
65 | } | |
66 | if (strcmp(*argv, "-l") == 0) { | |
67 | argc--, argv++; | |
68 | if (argc > 0) { | |
69 | link = atoi(*argv); | |
70 | argc--, argv++; | |
71 | } else | |
72 | link = IMPLINK_IP; | |
73 | continue; | |
74 | } | |
75 | if (strcmp(*argv, "-h") == 0) { | |
76 | argc--, argv++; | |
77 | if (argc < 1) { | |
78 | printf("-h: missing host #\n"); | |
79 | exit(2); | |
80 | } | |
81 | host = atoi(*argv); | |
82 | argv++, argc--; | |
83 | continue; | |
84 | } | |
85 | if (strcmp(*argv, "-i") == 0) { | |
86 | argc--, argv++; | |
87 | if (argc < 1) { | |
88 | printf("-i: missing imp #\n"); | |
89 | exit(2); | |
90 | } | |
91 | imp = atoi(*argv); | |
92 | argv++, argc--; | |
93 | continue; | |
94 | } | |
95 | if (strcmp(*argv, "-t") == 0) { | |
96 | argc--, argv++;; | |
97 | if (argc < 1) { | |
98 | printf("-t: missing packet type\n"); | |
99 | exit(2); | |
100 | } | |
101 | packettype = atoi(*argv); | |
102 | argv++, argc--;; | |
103 | continue; | |
104 | } | |
105 | printf("usage: prlog [ -D ] [ -c ] [ -f ] [-h #] [-i #] [ -t # ] [-l [#]] [logfile]\n"); | |
106 | exit(2); | |
107 | } | |
108 | if (argc > 0) | |
109 | logfile = argv[0]; | |
110 | log = open(logfile, 0); | |
111 | if (log < 0) { | |
112 | perror(logfile); | |
113 | exit(1); | |
114 | } | |
115 | fstat(log, &b); | |
116 | size = b.st_size; | |
117 | again: | |
118 | while (read(log, (char *)&from, sizeof(from)) == sizeof(from)) { | |
119 | if (from.sin_family == 0) { | |
120 | printf("restarted: %.24s\n", ctime(&from.sin_time)); | |
121 | continue; | |
122 | } | |
123 | if (host >= 0 && from.sin_addr.s_host != host) { | |
124 | lseek(log, from.sin_cc, 1); | |
125 | continue; | |
126 | } | |
127 | if (imp >= 0) { | |
128 | from.sin_addr.s_imp = ntohs(from.sin_addr.s_imp); | |
129 | if (from.sin_addr.s_imp != imp) { | |
130 | lseek(log, from.sin_cc, 1); | |
131 | continue; | |
132 | } | |
133 | } | |
134 | process(log, &from); | |
135 | } | |
136 | while (follow) { | |
137 | fflush(stdout); | |
138 | sleep(5); | |
139 | fstat(log, &b); | |
140 | if (b.st_size > size) { | |
141 | size = b.st_size; | |
142 | goto again; | |
143 | } | |
144 | } | |
145 | } | |
146 | ||
147 | int impdata(), impbadleader(), impdown(), impnoop(); | |
148 | int imprfnm(), impincomplete(), imphostdead(), imphostunreach(); | |
149 | int impbaddata(), impreset(), impretry(), impnotify(), imptrying(); | |
150 | int impready(), impundef(); | |
151 | ||
152 | struct messages { | |
153 | u_char m_type; /* type of message */ | |
154 | int (*m_func)(); /* routine to process message */ | |
155 | } mtypes[] = { | |
156 | { IMPTYPE_DATA, impdata }, | |
157 | { IMPTYPE_BADLEADER, impbadleader }, | |
158 | { IMPTYPE_DOWN, impdown }, | |
159 | { IMPTYPE_NOOP, impnoop }, | |
160 | { IMPTYPE_RFNM, imprfnm }, | |
161 | { IMPTYPE_INCOMPLETE, impincomplete }, | |
162 | { IMPTYPE_HOSTDEAD, imphostdead }, | |
163 | { IMPTYPE_HOSTUNREACH, imphostunreach }, | |
164 | { IMPTYPE_BADDATA, impbaddata }, | |
165 | { IMPTYPE_RESET, impreset }, | |
166 | { IMPTYPE_RETRY, impretry }, | |
167 | { IMPTYPE_NOTIFY, impnotify }, | |
168 | { IMPTYPE_TRYING, imptrying }, | |
169 | { IMPTYPE_READY, impready }, | |
170 | { -1, impundef } | |
171 | }; | |
172 | ||
173 | /* | |
174 | * Print a packet. | |
175 | */ | |
176 | process(l, f) | |
177 | int l; | |
178 | struct sockstamp *f; | |
179 | { | |
180 | register struct messages *mp; | |
181 | struct imp_leader *ip; | |
182 | ||
183 | if (read(l, (char *)buf, f->sin_cc) != f->sin_cc) { | |
184 | perror("read"); | |
185 | return; | |
186 | } | |
187 | ip = (struct imp_leader *)buf; | |
188 | #if vax | |
189 | ip->il_imp = ntohs(ip->il_imp); | |
190 | #endif | |
191 | for (mp = mtypes; mp->m_type != -1; mp++) | |
192 | if (mp->m_type == ip->il_mtype) | |
193 | break; | |
194 | if (mp->m_type == IMPTYPE_DATA) { | |
195 | if (link >= 0 && ip->il_link != link) | |
196 | return; | |
197 | if (!showdata) | |
198 | return; | |
199 | } | |
200 | if (packettype >= 0 && mp->m_type != packettype) | |
201 | return; | |
202 | printf("%.24s: ", ctime(&f->sin_time)); | |
203 | (*mp->m_func)(ip, f->sin_cc); | |
204 | } | |
205 | ||
206 | impdata(ip, cc) | |
207 | register struct imp_leader *ip; | |
208 | { | |
209 | printf("<%d/%d, DATA, link=", ip->il_host, ntohs(ip->il_imp)); | |
210 | if (ip->il_link == IMPLINK_IP) | |
211 | printf("ip,"); | |
212 | else | |
213 | printf("%d,", ip->il_link); | |
214 | printf(" len=%d bytes>\n", ntohs(ip->il_length) >> 3); | |
215 | if (showcontents) { | |
216 | register u_char *cp = ((u_char *)ip) + sizeof(*ip); | |
217 | register int i; | |
218 | ||
219 | i = (ntohs(ip->il_length) >> 3) - sizeof(struct imp_leader); | |
220 | cc = min(i, cc); | |
221 | printf("data: (%d bytes)", cc); | |
222 | for (i = 0; i < cc; i++, cp++) { | |
223 | if (i % 25 == 0) | |
224 | printf("\n"); | |
225 | printf("%02x ", *cp); | |
226 | } | |
227 | putchar('\n'); | |
228 | } | |
229 | } | |
230 | ||
231 | char *badleader[] = { | |
232 | "error flip-flop set", | |
233 | "message < 80 bits", | |
234 | "illegal type field", | |
235 | "opposite leader type" | |
236 | }; | |
237 | ||
238 | impbadleader(ip) | |
239 | register struct imp_leader *ip; | |
240 | { | |
241 | printf("bad leader: "); | |
242 | if (ip->il_subtype > IMPLEADER_OPPOSITE) | |
243 | printf("%x\n", ip->il_subtype); | |
244 | else | |
245 | printf("%s\n", badleader[ip->il_subtype]); | |
246 | } | |
247 | ||
248 | char *down[] = { | |
249 | "in 30 secs", | |
250 | "for hardware pm", | |
251 | "for software reload", | |
252 | "for emergency restart" | |
253 | }; | |
254 | ||
255 | impdown(ip) | |
256 | register struct imp_leader *ip; | |
257 | { | |
258 | int tdown, tbackup; | |
259 | ||
260 | printf("imp going down %s", down[ip->il_link & IMP_DMASK]); | |
261 | tdown = ((ip->il_link >> 2) & 0xf) * 5; | |
262 | if (ip->il_link & IMP_DMASK) | |
263 | printf(" in %d minutes", tdown); | |
264 | tbackup = ip->il_subtype * 5; | |
265 | printf(": back up "); | |
266 | if (tbackup) | |
267 | printf("%d minutes\n", tbackup); | |
268 | else | |
269 | printf("immediately\n"); | |
270 | } | |
271 | ||
272 | impnoop(ip) | |
273 | register struct imp_leader *ip; | |
274 | { | |
275 | printf("noop: host %d, imp %d\n", ip->il_host, ntohs(ip->il_imp)); | |
276 | } | |
277 | ||
278 | imprfnm(ip) | |
279 | register struct imp_leader *ip; | |
280 | { | |
281 | printf("rfnm: htype=%x, source=%d/%d, link=", | |
282 | ip->il_htype, ip->il_host, ip->il_imp); | |
283 | if (ip->il_link == IMPLINK_IP) | |
284 | printf("ip,"); | |
285 | else | |
286 | printf("%x,", ip->il_link); | |
287 | printf(" subtype=%x\n", ip->il_subtype); | |
288 | } | |
289 | ||
290 | char *hostdead[] = { | |
291 | "???", | |
292 | "ready-line negated", | |
293 | "tardy receiving messages", | |
294 | "ncc doesn't know host", | |
295 | "imp software won't allow messages", | |
296 | "host down for scheduled pm", | |
297 | "host down for hardware work", | |
298 | "host down for software work", | |
299 | "host down for emergency restart", | |
300 | "host down because of power outage", | |
301 | "host stopped at a breakpoint", | |
302 | "host down due to hardware failure", | |
303 | "host not scheduled to be up", | |
304 | "???", | |
305 | "???", | |
306 | "host in the process of coming up" | |
307 | }; | |
308 | ||
309 | imphostdead(ip) | |
310 | register struct imp_leader *ip; | |
311 | { | |
312 | printf("host dead: "); | |
313 | if (ip->il_link & IMP_DMASK) | |
314 | printf("down %s, ", down[ip->il_link & IMP_DMASK]); | |
315 | if (ip->il_subtype <= IMPHOST_COMINGUP) | |
316 | printf("%s\n", hostdead[ip->il_subtype]); | |
317 | else | |
318 | printf("subtype=%x\n", ip->il_subtype); | |
319 | } | |
320 | ||
321 | char *hostunreach[] = { | |
322 | "destination imp can't be reached", | |
323 | "destination host isn't up", | |
324 | "host doesn't support long leader", | |
325 | "communication is prohibited" | |
326 | }; | |
327 | ||
328 | imphostunreach(ip) | |
329 | register struct imp_leader *ip; | |
330 | { | |
331 | printf("host unreachable: "); | |
332 | if (ip->il_subtype <= IMPREACH_PROHIBITED) | |
333 | printf("%s\n", hostunreach[ip->il_subtype]); | |
334 | else | |
335 | printf("subtype=%x\n", ip->il_subtype); | |
336 | } | |
337 | ||
338 | impbaddata(ip) | |
339 | register struct imp_leader *ip; | |
340 | { | |
341 | printf("error in data: htype=%x, source=%d/%d, link=", | |
342 | ip->il_htype, ip->il_host, ip->il_imp); | |
343 | if (ip->il_link == IMPLINK_IP) | |
344 | printf("ip, "); | |
345 | else | |
346 | printf("%x, ", ip->il_link); | |
347 | printf("subtype=%x\n", ip->il_subtype); | |
348 | } | |
349 | ||
350 | char *incomplete[] = { | |
351 | "host didn't take data fast enough", | |
352 | "message was too long", | |
353 | "message transmission time > 15 seconds", | |
354 | "imp/circuit failure", | |
355 | "no resources within 15 seconds", | |
356 | "source imp i/o failure during receipt" | |
357 | }; | |
358 | ||
359 | impincomplete(ip) | |
360 | register struct imp_leader *ip; | |
361 | { | |
362 | printf("incomplete: htype=%x, source=%d/%d, link=", | |
363 | ip->il_htype, ip->il_host, ip->il_imp); | |
364 | if (ip->il_link == IMPLINK_IP) | |
365 | printf("ip,"); | |
366 | else | |
367 | printf("%x,", ip->il_link); | |
368 | if (ip->il_subtype <= IMPCOMPLETE_IMPIO) | |
369 | printf(" %s\n", incomplete[ip->il_subtype]); | |
370 | else | |
371 | printf(" subtype=%x\n", ip->il_subtype); | |
372 | } | |
373 | ||
374 | impreset(ip) | |
375 | register struct imp_leader *ip; | |
376 | { | |
377 | printf("reset complete\n"); | |
378 | } | |
379 | ||
380 | char *retry[] = { | |
381 | "imp buffer wasn't available", | |
382 | "connection block unavailable" | |
383 | }; | |
384 | ||
385 | impretry(ip) | |
386 | register struct imp_leader *ip; | |
387 | { | |
388 | printf("refused, try again: "); | |
389 | if (ip->il_subtype <= IMPRETRY_BLOCK) | |
390 | printf("%s\n", retry[ip->il_subtype]); | |
391 | else | |
392 | printf("subtype=%x\n", ip->il_subtype); | |
393 | } | |
394 | ||
395 | char *notify[] = { | |
396 | "???", | |
397 | "???", | |
398 | "connection not available", | |
399 | "reassembly space not available at destination", | |
400 | "message number not available", | |
401 | "transaction block for message not available" | |
402 | }; | |
403 | ||
404 | impnotify(ip) | |
405 | register struct imp_leader *ip; | |
406 | { | |
407 | printf("refused, will notify: "); | |
408 | if (ip->il_subtype <= 5) | |
409 | printf("%s\n", notify[ip->il_subtype]); | |
410 | else | |
411 | printf("subtype=%x\n", ip->il_subtype); | |
412 | } | |
413 | ||
414 | imptrying(ip) | |
415 | register struct imp_leader *ip; | |
416 | { | |
417 | printf("refused, still trying\n"); | |
418 | } | |
419 | ||
420 | impready(ip) | |
421 | register struct imp_leader *ip; | |
422 | { | |
423 | printf("ready\n"); | |
424 | } | |
425 | ||
426 | impundef(ip) | |
427 | register struct imp_leader *ip; | |
428 | { | |
429 | printf("<fmt=%x, net=%x, flags=%x, mtype=", ip->il_format, | |
430 | ip->il_network, ip->il_flags); | |
431 | printf("%x, htype=%x, host=%x, imp=%x, link=", ip->il_mtype, | |
432 | ip->il_htype, ip->il_host, ip->il_imp); | |
433 | if (ip->il_link == IMPLINK_IP) | |
434 | printf("ip,"); | |
435 | else | |
436 | printf("%x,", ip->il_link); | |
437 | printf(" subtype=%x>\n", ip->il_subtype); | |
438 | } |