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3fededfc KS |
1 | This manual page documents a tool used for debugging failures in |
2 | the Xerox NS Sequenced packet protocol layer. It is adapted from | |
3 | the Internet equivalent trpt(8c). | |
4 | /* | |
5 | * Copyright (c) 1985 Regents of the University of California. | |
6 | * All rights reserved. The Berkeley software License Agreement | |
7 | * specifies the terms and conditions for redistribution. | |
8 | */ | |
9 | ||
10 | #ifndef lint | |
11 | char copyright[] = | |
12 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
13 | All rights reserved.\n"; | |
14 | #endif not lint | |
15 | ||
16 | #ifndef lint | |
17 | static char sccsid[] = "@(#)trsp.c 6.1 (Berkeley) %G%"; | |
18 | #endif not lint | |
19 | ||
20 | #include <sys/param.h> | |
21 | #include <sys/socket.h> | |
22 | #include <sys/socketvar.h> | |
23 | #define PRUREQUESTS | |
24 | #include <sys/protosw.h> | |
25 | ||
26 | #include <net/route.h> | |
27 | #include <net/if.h> | |
28 | ||
29 | #define TCPSTATES | |
30 | #include <netinet/tcp_fsm.h> | |
31 | #define TCPTIMERS | |
32 | #include <netinet/tcp_timer.h> | |
33 | ||
34 | #include <netns/ns.h> | |
35 | #include <netns/ns_pcb.h> | |
36 | #include <netns/idp.h> | |
37 | #include <netns/idp_var.h> | |
38 | #include <netns/sp.h> | |
39 | #include <netns/spidp.h> | |
40 | #include <netns/spp_var.h> | |
41 | #define SANAMES | |
42 | #include <netns/spp_debug.h> | |
43 | ||
44 | #include <stdio.h> | |
45 | #include <errno.h> | |
46 | #include <nlist.h> | |
47 | ||
48 | unsigned long ntime; | |
49 | int sflag; | |
50 | int tflag; | |
51 | int jflag; | |
52 | int aflag; | |
53 | int zflag; | |
54 | int numeric(); | |
55 | struct nlist nl[] = { | |
56 | { "_spp_debug" }, | |
57 | { "_spp_debx" }, | |
58 | 0 | |
59 | }; | |
60 | struct spp_debug spp_debug[SPP_NDEBUG]; | |
61 | caddr_t spp_pcbs[SPP_NDEBUG]; | |
62 | int spp_debx; | |
63 | ||
64 | main(argc, argv) | |
65 | int argc; | |
66 | char **argv; | |
67 | { | |
68 | int i, mask = 0, npcbs = 0; | |
69 | char *system = "/vmunix", *core = "/dev/kmem"; | |
70 | ||
71 | argc--, argv++; | |
72 | again: | |
73 | if (argc > 0 && !strcmp(*argv, "-a")) { | |
74 | aflag++, argc--, argv++; | |
75 | goto again; | |
76 | } | |
77 | if (argc > 0 && !strcmp(*argv, "-z")) { | |
78 | zflag++, argc--, argv++; | |
79 | goto again; | |
80 | } | |
81 | if (argc > 0 && !strcmp(*argv, "-s")) { | |
82 | sflag++, argc--, argv++; | |
83 | goto again; | |
84 | } | |
85 | if (argc > 0 && !strcmp(*argv, "-t")) { | |
86 | tflag++, argc--, argv++; | |
87 | goto again; | |
88 | } | |
89 | if (argc > 0 && !strcmp(*argv, "-j")) { | |
90 | jflag++, argc--, argv++; | |
91 | goto again; | |
92 | } | |
93 | if (argc > 0 && !strcmp(*argv, "-p")) { | |
94 | argc--, argv++; | |
95 | if (argc < 1) { | |
96 | fprintf(stderr, "-p: missing sppcb address\n"); | |
97 | exit(1); | |
98 | } | |
99 | if (npcbs >= SPP_NDEBUG) { | |
100 | fprintf(stderr, "-p: too many pcb's specified\n"); | |
101 | exit(1); | |
102 | } | |
103 | sscanf(*argv, "%x", &spp_pcbs[npcbs++]); | |
104 | argc--, argv++; | |
105 | goto again; | |
106 | } | |
107 | if (argc > 0) { | |
108 | system = *argv; | |
109 | argc--, argv++; | |
110 | mask++; | |
111 | } | |
112 | if (argc > 0) { | |
113 | core = *argv; | |
114 | argc--, argv++; | |
115 | mask++; | |
116 | } | |
117 | (void) nlist(system, nl); | |
118 | if (nl[0].n_value == 0) { | |
119 | fprintf(stderr, "trsp: %s: no namelist\n", system); | |
120 | exit(1); | |
121 | } | |
122 | (void) close(0); | |
123 | if (open(core, 0) < 0) { | |
124 | fprintf(stderr, "trsp: "); perror(core); | |
125 | exit(2); | |
126 | } | |
127 | if (mask) { | |
128 | nl[0].n_value &= 0x7fffffff; | |
129 | nl[1].n_value &= 0x7fffffff; | |
130 | } | |
131 | (void) lseek(0, nl[1].n_value, 0); | |
132 | if (read(0, &spp_debx, sizeof (spp_debx)) != sizeof (spp_debx)) { | |
133 | fprintf(stderr, "trsp: "); perror("spp_debx"); | |
134 | exit(3); | |
135 | } | |
136 | printf("spp_debx=%d\n", spp_debx); | |
137 | (void) lseek(0, nl[0].n_value, 0); | |
138 | if (read(0, spp_debug, sizeof (spp_debug)) != sizeof (spp_debug)) { | |
139 | fprintf(stderr, "trsp: "); perror("spp_debug"); | |
140 | exit(3); | |
141 | } | |
142 | /* | |
143 | * Here, we just want to clear out the old trace data and start over. | |
144 | */ | |
145 | if (zflag) { | |
146 | char *cp = (char *) spp_debug, | |
147 | *cplim = cp + sizeof(spp_debug); | |
148 | (void) close(0); | |
149 | if (open(core, 2) < 0) { | |
150 | fprintf(stderr, "trsp: "); perror(core); | |
151 | exit(2); | |
152 | } | |
153 | while(cp < cplim) *cp++ = 0; | |
154 | (void) lseek(0, nl[0].n_value, 0); | |
155 | if (write(0, spp_debug, sizeof (spp_debug)) != sizeof (spp_debug)) { | |
156 | fprintf(stderr, "trsp: "); perror("spp_debug"); | |
157 | exit(3); | |
158 | } | |
159 | (void) lseek(0, nl[1].n_value, 0); | |
160 | spp_debx = 0; | |
161 | if (write(0, &spp_debx, sizeof (spp_debx)) != sizeof (spp_debx)) { | |
162 | fprintf(stderr, "trsp: "); perror("spp_debx"); | |
163 | exit(3); | |
164 | } | |
165 | exit(0); | |
166 | } | |
167 | /* | |
168 | * If no control blocks have been specified, figure | |
169 | * out how many distinct one we have and summarize | |
170 | * them in spp_pcbs for sorting the trace records | |
171 | * below. | |
172 | */ | |
173 | if (npcbs == 0) { | |
174 | for (i = 0; i < SPP_NDEBUG; i++) { | |
175 | register int j; | |
176 | register struct spp_debug *sd = &spp_debug[i]; | |
177 | ||
178 | if (sd->sd_cb == 0) | |
179 | continue; | |
180 | for (j = 0; j < npcbs; j++) | |
181 | if (spp_pcbs[j] == sd->sd_cb) | |
182 | break; | |
183 | if (j >= npcbs) | |
184 | spp_pcbs[npcbs++] = sd->sd_cb; | |
185 | } | |
186 | } | |
187 | qsort(spp_pcbs, npcbs, sizeof (caddr_t), numeric); | |
188 | if (jflag) { | |
189 | char *cp = ""; | |
190 | ||
191 | for (i = 0; i < npcbs; i++) { | |
192 | printf("%s%x", cp, spp_pcbs[i]); | |
193 | cp = ", "; | |
194 | } | |
195 | if (*cp) | |
196 | putchar('\n'); | |
197 | exit(0); | |
198 | } | |
199 | for (i = 0; i < npcbs; i++) { | |
200 | printf("\n%x:\n", spp_pcbs[i]); | |
201 | dotrace(spp_pcbs[i]); | |
202 | } | |
203 | exit(0); | |
204 | } | |
205 | ||
206 | dotrace(sppcb) | |
207 | register caddr_t sppcb; | |
208 | { | |
209 | register int i; | |
210 | register struct spp_debug *sd; | |
211 | ||
212 | for (i = spp_debx % SPP_NDEBUG; i < SPP_NDEBUG; i++) { | |
213 | sd = &spp_debug[i]; | |
214 | if (sppcb && sd->sd_cb != sppcb) | |
215 | continue; | |
216 | ntime = ntohl(sd->sd_time); | |
217 | spp_trace(sd->sd_act, sd->sd_ostate, sd->sd_cb, &sd->sd_sp, | |
218 | &sd->sd_si, sd->sd_req); | |
219 | } | |
220 | for (i = 0; i < spp_debx % SPP_NDEBUG; i++) { | |
221 | sd = &spp_debug[i]; | |
222 | if (sppcb && sd->sd_cb != sppcb) | |
223 | continue; | |
224 | ntime = ntohl(sd->sd_time); | |
225 | spp_trace(sd->sd_act, sd->sd_ostate, sd->sd_cb, &sd->sd_sp, | |
226 | &sd->sd_si, sd->sd_req); | |
227 | } | |
228 | } | |
229 | ||
230 | ptime(ms) | |
231 | int ms; | |
232 | { | |
233 | ||
234 | printf("%03d ", (ms/10) % 1000); | |
235 | } | |
236 | ||
237 | numeric(c1, c2) | |
238 | caddr_t *c1, *c2; | |
239 | { | |
240 | ||
241 | return (*c1 - *c2); | |
242 | } | |
243 | ||
244 | spp_trace(act, ostate, asp, sp, si, req) | |
245 | short act, ostate; | |
246 | struct sppcb *asp, *sp; | |
247 | struct spidp *si; | |
248 | int req; | |
249 | { | |
250 | u_short seq, ack, len, alo; | |
251 | int flags, timer; | |
252 | char *cp; | |
253 | ||
254 | if(ostate >= TCP_NSTATES) ostate = 0; | |
255 | if(act > SA_DROP) act = SA_DROP; | |
256 | printf("\n"); | |
257 | ptime(ntime); | |
258 | printf("%s:%s", tcpstates[ostate], sanames[act]); | |
259 | ||
260 | if (si != 0) { | |
261 | seq = si->si_seq; | |
262 | ack = si->si_ack; | |
263 | alo = si->si_alo; | |
264 | len = si->si_len; | |
265 | switch (act) { | |
266 | case SA_RESPOND: | |
267 | case SA_OUTPUT: | |
268 | seq = ntohs(seq); | |
269 | ack = ntohs(ack); | |
270 | alo = ntohs(alo); | |
271 | len = ntohs(len); | |
272 | case SA_INPUT: | |
273 | case SA_DROP: | |
274 | if (aflag) { | |
275 | printf("\n\tsna="); | |
276 | ns_printhost(&si->si_sna); | |
277 | printf("\tdna="); | |
278 | ns_printhost(&si->si_dna); | |
279 | } | |
280 | printf("\n\t"); | |
281 | #define p1(f) { printf("%s = %x, ", "f", f); } | |
282 | p1(seq); p1(ack); p1(alo); p1(len); | |
283 | flags = si->si_cc; | |
284 | printf("flags=%x", flags); | |
285 | if (flags) { | |
286 | char *cp = "<"; | |
287 | #define pf(f) { if (flags&SP_/**/f) { printf("%s%s", cp, "f"); cp = ","; } } | |
288 | pf(SP); pf(SA); pf(OB); pf(EM); | |
289 | printf(">"); | |
290 | } | |
291 | printf(", "); | |
292 | #define p2(f) { printf("%s = %x, ", "f", si->si_/**/f); } | |
293 | p2(sid);p2(did);p2(dt); | |
294 | printf("\n\tsna="); | |
295 | ns_printhost(&si->si_sna); | |
296 | printf("\tdna="); | |
297 | ns_printhost(&si->si_dna); | |
298 | } | |
299 | } | |
300 | if(act == SA_USER) { | |
301 | printf("\treq=%s", prurequests[req&0xff]); | |
302 | if ((req & 0xff) == PRU_SLOWTIMO) | |
303 | printf("<%s>", tcptimers[req>>8]); | |
304 | } | |
305 | printf(" -> %s", tcpstates[sp->s_state]); | |
306 | ||
307 | /* print out internal state of sp !?! */ | |
308 | printf("\n"); | |
309 | if (sp == 0) | |
310 | return; | |
311 | #define p3(f) { printf("%s = %x, ", "f", sp->s_/**/f); } | |
312 | if(sflag) { | |
313 | printf("\t"); p3(rack); p3(ralo); p3(snt); p3(flags); | |
314 | #undef pf | |
315 | #define pf(f) { if (flags&SF_/**/f) { printf("%s%s", cp, "f"); cp = ","; } } | |
316 | flags = sp->s_flags; | |
317 | if (flags || sp->s_oobflags) { | |
318 | char *cp = "<"; | |
319 | pf(AK); pf(DELACK); pf(HI); pf(HO); | |
320 | flags = sp->s_oobflags; | |
321 | pf(SOOB); pf(IOOB); | |
322 | printf(">"); | |
323 | } | |
324 | ||
325 | } | |
326 | /* print out timers? */ | |
327 | if (tflag) { | |
328 | char *cp = "\t"; | |
329 | register int i; | |
330 | ||
331 | printf("\n\tTIMERS: "); | |
332 | p3(idle); p3(force); p3(rtseq); | |
333 | for (i = 0; i < TCPT_NTIMERS; i++) { | |
334 | if (sp->s_timer[i] == 0) | |
335 | continue; | |
336 | printf("%s%s=%d", cp, tcptimers[i], sp->s_timer[i]); | |
337 | if (i == TCPT_REXMT) | |
338 | printf(" (s_rxtshft=%d)", sp->s_rxtshift); | |
339 | cp = ", "; | |
340 | } | |
341 | if (*cp != '\t') | |
342 | putchar('\n'); | |
343 | } | |
344 | } | |
345 | ||
346 | ns_printhost(p) | |
347 | register struct ns_addr *p; | |
348 | { | |
349 | ||
350 | printf("<net:%x%x,host:%4.4x%4.4x%4.4x,port:%x>", | |
351 | p->x_net.s_net[0], | |
352 | p->x_net.s_net[1], | |
353 | p->x_host.s_host[0], | |
354 | p->x_host.s_host[1], | |
355 | p->x_host.s_host[2], | |
356 | p->x_port); | |
357 | ||
358 | } | |
359 |