sys/kern/uipc_debug.c

   1 /*-
   2  * Copyright (c) 2007 Robert N. M. Watson
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 /*
  28  * Debugger routines relating to sockets, protocols, etc, for use in DDB.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __FBSDID("$FreeBSD$");
  33
  34 #include "opt_ddb.h"
  35
  36 #include <sys/param.h>
  37 #include <sys/domain.h>
  38 #include <sys/kernel.h>
  39 #include <sys/protosw.h>
  40 #include <sys/socket.h>
  41 #include <sys/socketvar.h>
  42
  43 #ifdef DDB
  44 #include <ddb/ddb.h>
  45
  46 static void
  47 db_print_sotype(short so_type)
  48 {
  49
  50         switch (so_type) {
  51         case SOCK_STREAM:
  52                 db_printf("SOCK_STREAM");
  53                 break;
  54
  55         case SOCK_DGRAM:
  56                 db_printf("SOCK_DGRAM");
  57                 break;
  58
  59         case SOCK_RAW:
  60                 db_printf("SOCK_RAW");
  61                 break;
  62
  63         case SOCK_RDM:
  64                 db_printf("SOCK_RDM");
  65                 break;
  66
  67         case SOCK_SEQPACKET:
  68                 db_printf("SOCK_SEQPACKET");
  69                 break;
  70
  71         default:
  72                 db_printf("unknown");
  73                 break;
  74         }
  75 }
  76
  77 static void
  78 db_print_sooptions(short so_options)
  79 {
  80         int comma;
  81
  82         comma = 0;
  83         if (so_options & SO_DEBUG) {
  84                 db_printf("%sSO_DEBUG", comma ? ", " : "");
  85                 comma = 1;
  86         }
  87         if (so_options & SO_ACCEPTCONN) {
  88                 db_printf("%sSO_ACCEPTCONN", comma ? ", " : "");
  89                 comma = 1;
  90         }
  91         if (so_options & SO_REUSEADDR) {
  92                 db_printf("%sSO_REUSEADDR", comma ? ", " : "");
  93                 comma = 1;
  94         }
  95         if (so_options & SO_KEEPALIVE) {
  96                 db_printf("%sSO_KEEPALIVE", comma ? ", " : "");
  97                 comma = 1;
  98         }
  99         if (so_options & SO_DONTROUTE) {
 100                 db_printf("%sSO_DONTROUTE", comma ? ", " : "");
 101                 comma = 1;
 102         }
 103         if (so_options & SO_BROADCAST) {
 104                 db_printf("%sSO_BROADCAST", comma ? ", " : "");
 105                 comma = 1;
 106         }
 107         if (so_options & SO_USELOOPBACK) {
 108                 db_printf("%sSO_USELOOPBACK", comma ? ", " : "");
 109                 comma = 1;
 110         }
 111         if (so_options & SO_LINGER) {
 112                 db_printf("%sSO_LINGER", comma ? ", " : "");
 113                 comma = 1;
 114         }
 115         if (so_options & SO_OOBINLINE) {
 116                 db_printf("%sSO_OOBINLINE", comma ? ", " : "");
 117                 comma = 1;
 118         }
 119         if (so_options & SO_REUSEPORT) {
 120                 db_printf("%sSO_REUSEPORT", comma ? ", " : "");
 121                 comma = 1;
 122         }
 123         if (so_options & SO_TIMESTAMP) {
 124                 db_printf("%sSO_TIMESTAMP", comma ? ", " : "");
 125                 comma = 1;
 126         }
 127         if (so_options & SO_NOSIGPIPE) {
 128                 db_printf("%sSO_NOSIGPIPE", comma ? ", " : "");
 129                 comma = 1;
 130         }
 131         if (so_options & SO_ACCEPTFILTER) {
 132                 db_printf("%sSO_ACCEPTFILTER", comma ? ", " : "");
 133                 comma = 1;
 134         }
 135         if (so_options & SO_BINTIME) {
 136                 db_printf("%sSO_BINTIME", comma ? ", " : "");
 137                 comma = 1;
 138         }
 139 }
 140
 141 static void
 142 db_print_sostate(short so_state)
 143 {
 144         int comma;
 145
 146         comma = 0;
 147         if (so_state & SS_NOFDREF) {
 148                 db_printf("%sSS_FDREF", comma ? ", " : "");
 149                 comma = 1;
 150         }
 151         if (so_state & SS_ISCONNECTED) {
 152                 db_printf("%sSS_ISCONNECTED", comma ? ", " : "");
 153                 comma = 1;
 154         }
 155         if (so_state & SS_ISCONNECTING) {
 156                 db_printf("%sSS_ISCONNECTING", comma ? ", " : "");
 157                 comma = 1;
 158         }
 159         if (so_state & SS_ISDISCONNECTING) {
 160                 db_printf("%sSS_ISDISCONNECTING", comma ? ", " : "");
 161                 comma = 1;
 162         }
 163         if (so_state & SS_NBIO) {
 164                 db_printf("%sSS_NBIO", comma ? ", " : "");
 165                 comma = 1;
 166         }
 167         if (so_state & SS_ASYNC) {
 168                 db_printf("%sSS_ASYNC", comma ? ", " : "");
 169                 comma = 1;
 170         }
 171         if (so_state & SS_ISCONFIRMING) {
 172                 db_printf("%sSS_ISCONFIRMING", comma ? ", " : "");
 173                 comma = 1;
 174         }
 175         comma = 0;
 176         if (so_state & SS_PROTOREF) {
 177                 db_printf("%sSS_PROTOREF", comma ? ", " : "");
 178                 comma = 1;
 179         }
 180 }
 181
 182 static void
 183 db_print_soqstate(int so_qstate)
 184 {
 185         int comma;
 186
 187         comma = 0;
 188         if (so_qstate & SQ_INCOMP) {
 189                 db_printf("%sSQ_INCOMP", comma ? ", " : "");
 190                 comma = 1;
 191         }
 192         if (so_qstate & SQ_COMP) {
 193                 db_printf("%sSQ_COMP", comma ? ", " : "");
 194                 comma = 1;
 195         }
 196 }
 197
 198 static void
 199 db_print_sbstate(short sb_state)
 200 {
 201         int comma;
 202
 203         comma = 0;
 204         if (sb_state & SBS_CANTSENDMORE) {
 205                 db_printf("%sSS_CANTSENDMORE", comma ? ", " : "");
 206                 comma = 1;
 207         }
 208         if (sb_state & SBS_CANTRCVMORE) {
 209                 db_printf("%sSS_CANTRCVMORE", comma ? ", " : "");
 210                 comma = 1;
 211         }
 212         if (sb_state & SBS_RCVATMARK) {
 213                 db_printf("%sSS_RCVATMARK", comma ? ", " : "");
 214                 comma = 1;
 215         }
 216 }
 217
 218 static void
 219 db_print_indent(int indent)
 220 {
 221         int i;
 222
 223         for (i = 0; i < indent; i++)
 224                 db_printf(" ");
 225 }
 226
 227 static void
 228 db_print_domain(struct domain *d, const char *domainname, int indent)
 229 {
 230
 231         db_print_indent(indent);
 232         db_printf("%s at %p\n", domainname, d);
 233
 234         indent += 2;
 235
 236         db_print_indent(indent);
 237         db_printf("dom_family: %d   ", d->dom_family);
 238         db_printf("dom_name: %s\n", d->dom_name);
 239
 240         db_print_indent(indent);
 241         db_printf("dom_init: %p   ", d->dom_init);
 242         db_printf("dom_externalize: %p   ", d->dom_externalize);
 243         db_printf("dom_dispose: %p\n", d->dom_dispose);
 244
 245         db_print_indent(indent);
 246         db_printf("dom_protosw: %p   ", d->dom_protosw);
 247         db_printf("dom_next: %p\n", d->dom_next);
 248
 249         db_print_indent(indent);
 250         db_printf("dom_rtattach: %p   ", d->dom_rtattach);
 251         db_printf("dom_rtoffset: %d   ", d->dom_rtoffset);
 252         db_printf("dom_maxrtkey: %d\n", d->dom_maxrtkey);
 253
 254         db_print_indent(indent);
 255         db_printf("dom_ifattach: %p   ", d->dom_ifattach);
 256         db_printf("dom_ifdetach: %p\n", d->dom_ifdetach);
 257 }
 258
 259 static void
 260 db_print_prflags(short pr_flags)
 261 {
 262         int comma;
 263
 264         comma = 0;
 265         if (pr_flags & PR_ATOMIC) {
 266                 db_printf("%sPR_ATOMIC", comma ? ", " : "");
 267                 comma = 1;
 268         }
 269         if (pr_flags & PR_ADDR) {
 270                 db_printf("%sPR_ADDR", comma ? ", " : "");
 271                 comma = 1;
 272         }
 273         if (pr_flags & PR_CONNREQUIRED) {
 274                 db_printf("%sPR_CONNREQUIRED", comma ? ", " : "");
 275                 comma = 1;
 276         }
 277         if (pr_flags & PR_WANTRCVD) {
 278                 db_printf("%sPR_WANTRCVD", comma ? ", " : "");
 279                 comma = 1;
 280         }
 281         if (pr_flags & PR_RIGHTS) {
 282                 db_printf("%sPR_RIGHTS", comma ? ", " : "");
 283                 comma = 1;
 284         }
 285         if (pr_flags & PR_IMPLOPCL) {
 286                 db_printf("%sPR_IMPLOPCL", comma ? ", " : "");
 287                 comma = 1;
 288         }
 289         if (pr_flags & PR_LASTHDR) {
 290                 db_printf("%sPR_LASTHDR", comma ? ", " : "");
 291                 comma = 1;
 292         }
 293 }
 294
 295 static void
 296 db_print_protosw(struct protosw *pr, const char *prname, int indent)
 297 {
 298
 299         db_print_indent(indent);
 300         db_printf("%s at %p\n", prname, pr);
 301
 302         indent += 2;
 303
 304         db_print_indent(indent);
 305         db_printf("pr_type: %d   ", pr->pr_type);
 306         db_printf("pr_domain: %p\n", pr->pr_domain);
 307         if (pr->pr_domain != NULL)
 308                 db_print_domain(pr->pr_domain, "pr_domain", indent);
 309
 310         db_print_indent(indent);
 311         db_printf("pr_protocol: %d\n", pr->pr_protocol);
 312
 313         db_print_indent(indent);
 314         db_printf("pr_flags: %d (", pr->pr_flags);
 315         db_print_prflags(pr->pr_flags);
 316         db_printf(")\n");
 317
 318         db_print_indent(indent);
 319         db_printf("pr_input: %p   ", pr->pr_input);
 320         db_printf("pr_output: %p   ", pr->pr_output);
 321         db_printf("pr_ctlinput: %p\n", pr->pr_ctlinput);
 322
 323         db_print_indent(indent);
 324         db_printf("pr_ctloutput: %p   ", pr->pr_ctloutput);
 325         db_printf("pr_ousrreq: %p   ", pr->pr_ousrreq);
 326         db_printf("pr_init: %p\n", pr->pr_init);
 327
 328         db_print_indent(indent);
 329         db_printf("pr_fasttimo: %p   ", pr->pr_fasttimo);
 330         db_printf("pr_slowtimo: %p   ", pr->pr_slowtimo);
 331         db_printf("pr_drain: %p\n", pr->pr_drain);
 332
 333         db_print_indent(indent);
 334         db_printf("pr_ousrreq: %p\n", pr->pr_ousrreq);
 335 }
 336
 337 static void
 338 db_print_sbflags(short sb_flags)
 339 {
 340         int comma;
 341
 342         comma = 0;
 343         if (sb_flags & SB_WAIT) {
 344                 db_printf("%sSB_WAIT", comma ? ", " : "");
 345                 comma = 1;
 346         }
 347         if (sb_flags & SB_SEL) {
 348                 db_printf("%sSB_SEL", comma ? ", " : "");
 349                 comma = 1;
 350         }
 351         if (sb_flags & SB_ASYNC) {
 352                 db_printf("%sSB_ASYNC", comma ? ", " : "");
 353                 comma = 1;
 354         }
 355         if (sb_flags & SB_UPCALL) {
 356                 db_printf("%sSB_UPCALL", comma ? ", " : "");
 357                 comma = 1;
 358         }
 359         if (sb_flags & SB_NOINTR) {
 360                 db_printf("%sSB_NOINTR", comma ? ", " : "");
 361                 comma = 1;
 362         }
 363         if (sb_flags & SB_AIO) {
 364                 db_printf("%sSB_AIO", comma ? ", " : "");
 365                 comma = 1;
 366         }
 367         if (sb_flags & SB_KNOTE) {
 368                 db_printf("%sSB_KNOTE", comma ? ", " : "");
 369                 comma = 1;
 370         }
 371         if (sb_flags & SB_AUTOSIZE) {
 372                 db_printf("%sSB_AUTOSIZE", comma ? ", " : "");
 373                 comma = 1;
 374         }
 375 }
 376
 377 static void
 378 db_print_sockbuf(struct sockbuf *sb, const char *sockbufname, int indent)
 379 {
 380
 381         db_print_indent(indent);
 382         db_printf("%s at %p\n", sockbufname, sb);
 383
 384         indent += 2;
 385
 386         db_print_indent(indent);
 387         db_printf("sb_state: 0x%x (", sb->sb_state);
 388         db_print_sbstate(sb->sb_state);
 389         db_printf(")\n");
 390
 391         db_print_indent(indent);
 392         db_printf("sb_mb: %p   ", sb->sb_mb);
 393         db_printf("sb_mbtail: %p   ", sb->sb_mbtail);
 394         db_printf("sb_lastrecord: %p\n", sb->sb_lastrecord);
 395
 396         db_print_indent(indent);
 397         db_printf("sb_sndptr: %p   ", sb->sb_sndptr);
 398         db_printf("sb_sndptroff: %u\n", sb->sb_sndptroff);
 399
 400         db_print_indent(indent);
 401         db_printf("sb_cc: %u   ", sb->sb_cc);
 402         db_printf("sb_hiwat: %u   ", sb->sb_hiwat);
 403         db_printf("sb_mbcnt: %u   ", sb->sb_mbcnt);
 404         db_printf("sb_mbmax: %u\n", sb->sb_mbmax);
 405
 406         db_print_indent(indent);
 407         db_printf("sb_ctl: %u   ", sb->sb_ctl);
 408         db_printf("sb_lowat: %d   ", sb->sb_lowat);
 409         db_printf("sb_timeo: %d\n", sb->sb_timeo);
 410
 411         db_print_indent(indent);
 412         db_printf("sb_flags: 0x%x (", sb->sb_flags);
 413         db_print_sbflags(sb->sb_flags);
 414         db_printf(")\n");
 415 }
 416
 417 static void
 418 db_print_socket(struct socket *so, const char *socketname, int indent)
 419 {
 420
 421         db_print_indent(indent);
 422         db_printf("%s at %p\n", socketname, so);
 423
 424         indent += 2;
 425
 426         db_print_indent(indent);
 427         db_printf("so_count: %d   ", so->so_count);
 428         db_printf("so_type: %d (", so->so_type);
 429         db_print_sotype(so->so_type);
 430         db_printf(")\n");
 431
 432         db_print_indent(indent);
 433         db_printf("so_options: 0x%x (", so->so_options);
 434         db_print_sooptions(so->so_options);
 435         db_printf(")\n");
 436
 437         db_print_indent(indent);
 438         db_printf("so_linger: %d   ", so->so_linger);
 439         db_printf("so_state: 0x%x (", so->so_state);
 440         db_print_sostate(so->so_state);
 441         db_printf(")\n");
 442
 443         db_print_indent(indent);
 444         db_printf("so_qstate: 0x%x (", so->so_qstate);
 445         db_print_soqstate(so->so_qstate);
 446         db_printf(")   ");
 447         db_printf("so_pcb: %p   ", so->so_pcb);
 448         db_printf("so_proto: %p\n", so->so_proto);
 449
 450         if (so->so_proto != NULL)
 451                 db_print_protosw(so->so_proto, "so_proto", indent);
 452
 453         db_print_indent(indent);
 454         db_printf("so_head: %p   ", so->so_head);
 455         db_printf("so_incomp first: %p   ", TAILQ_FIRST(&so->so_incomp));
 456         db_printf("so_comp first: %p\n", TAILQ_FIRST(&so->so_comp));
 457
 458         db_print_indent(indent);
 459         /* so_list skipped */
 460         db_printf("so_qlen: %d   ", so->so_qlen);
 461         db_printf("so_incqlen: %d   ", so->so_incqlen);
 462         db_printf("so_qlimit: %d   ", so->so_qlimit);
 463         db_printf("so_timeo: %d   ", so->so_timeo);
 464         db_printf("so_error: %d\n", so->so_error);
 465
 466         db_print_indent(indent);
 467         db_printf("so_sigio: %p   ", so->so_sigio);
 468         db_printf("so_oobmark: %lu   ", so->so_oobmark);
 469         db_printf("so_aiojobq first: %p\n", TAILQ_FIRST(&so->so_aiojobq));
 470
 471         db_print_sockbuf(&so->so_rcv, "so_rcv", indent);
 472         db_print_sockbuf(&so->so_snd, "so_snd", indent);
 473 }
 474
 475 DB_SHOW_COMMAND(socket, db_show_socket)
 476 {
 477         struct socket *so;
 478
 479         if (!have_addr) {
 480                 db_printf("usage: show socket <addr>\n");
 481                 return;
 482         }
 483         so = (struct socket *)addr;
 484
 485         db_print_socket(so, "socket", 0);
 486 }
 487
 488 DB_SHOW_COMMAND(sockbuf, db_show_sockbuf)
 489 {
 490         struct sockbuf *sb;
 491
 492         if (!have_addr) {
 493                 db_printf("usage: show sockbuf <addr>\n");
 494                 return;
 495         }
 496         sb = (struct sockbuf *)addr;
 497
 498         db_print_sockbuf(sb, "sockbuf", 0);
 499 }
 500
 501 DB_SHOW_COMMAND(protosw, db_show_protosw)
 502 {
 503         struct protosw *pr;
 504
 505         if (!have_addr) {
 506                 db_printf("usage: show protosw <addr>\n");
 507                 return;
 508         }
 509         pr = (struct protosw *)addr;
 510
 511         db_print_protosw(pr, "protosw", 0);
 512 }
 513
 514 DB_SHOW_COMMAND(domain, db_show_domain)
 515 {
 516         struct domain *d;
 517
 518         if (!have_addr) {
 519                 db_printf("usage: show protosw <addr>\n");
 520                 return;
 521         }
 522         d = (struct domain *)addr;
 523
 524         db_print_domain(d, "domain", 0);
 525 }
 526 #endif