1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/stream.h> 31 #include <sys/mdb_modapi.h> 32 #include <sys/socket.h> 33 #include <sys/list.h> 34 #include <sys/strsun.h> 35 36 #include <mdb/mdb_stdlib.h> 37 38 #include <netinet/in.h> 39 #include <netinet/ip6.h> 40 #include <netinet/sctp.h> 41 42 #include <inet/common.h> 43 #include <inet/ip.h> 44 #include <inet/ip6.h> 45 #include <inet/ipclassifier.h> 46 47 #include <sctp/sctp_impl.h> 48 #include <sctp/sctp_addr.h> 49 50 #define MDB_SCTP_SHOW_FLAGS 0x1 51 #define MDB_SCTP_DUMP_ADDRS 0x2 52 #define MDB_SCTP_SHOW_HASH 0x4 53 #define MDB_SCTP_SHOW_OUT 0x8 54 #define MDB_SCTP_SHOW_IN 0x10 55 #define MDB_SCTP_SHOW_MISC 0x20 56 #define MDB_SCTP_SHOW_RTT 0x40 57 #define MDB_SCTP_SHOW_STATS 0x80 58 #define MDB_SCTP_SHOW_FLOW 0x100 59 #define MDB_SCTP_SHOW_HDR 0x200 60 #define MDB_SCTP_SHOW_PMTUD 0x400 61 #define MDB_SCTP_SHOW_RXT 0x800 62 #define MDB_SCTP_SHOW_CONN 0x1000 63 #define MDB_SCTP_SHOW_CLOSE 0x2000 64 #define MDB_SCTP_SHOW_EXT 0x4000 65 66 #define MDB_SCTP_SHOW_ALL 0xffffffff 67 68 /* 69 * Copy from usr/src/uts/common/os/list.c. Should we have a generic 70 * mdb list walker? 71 */ 72 #define list_object(a, node) ((void *)(((char *)node) - (a)->list_offset)) 73 74 static int 75 ns_to_stackid(uintptr_t kaddr) 76 { 77 netstack_t nss; 78 79 if (mdb_vread(&nss, sizeof (nss), kaddr) == -1) { 80 mdb_warn("failed to read netdstack info %p", kaddr); 81 return (0); 82 } 83 return (nss.netstack_stackid); 84 } 85 86 int 87 sctp_stacks_walk_init(mdb_walk_state_t *wsp) 88 { 89 if (mdb_layered_walk("netstack", wsp) == -1) { 90 mdb_warn("can't walk 'netstack'"); 91 return (WALK_ERR); 92 } 93 return (WALK_NEXT); 94 } 95 96 int 97 sctp_stacks_walk_step(mdb_walk_state_t *wsp) 98 { 99 uintptr_t kaddr; 100 netstack_t nss; 101 102 if (mdb_vread(&nss, sizeof (nss), wsp->walk_addr) == -1) { 103 mdb_warn("can't read netstack at %p", wsp->walk_addr); 104 return (WALK_ERR); 105 } 106 kaddr = (uintptr_t)nss.netstack_modules[NS_SCTP]; 107 return (wsp->walk_callback(kaddr, wsp->walk_layer, wsp->walk_cbdata)); 108 } 109 110 static char * 111 sctp_faddr_state(int state) 112 { 113 char *statestr; 114 115 switch (state) { 116 case SCTP_FADDRS_UNREACH: 117 statestr = "Unreachable"; 118 break; 119 case SCTP_FADDRS_DOWN: 120 statestr = "Down"; 121 break; 122 case SCTP_FADDRS_ALIVE: 123 statestr = "Alive"; 124 break; 125 case SCTP_FADDRS_UNCONFIRMED: 126 statestr = "Unconfirmed"; 127 break; 128 default: 129 statestr = "Unknown"; 130 break; 131 } 132 return (statestr); 133 } 134 135 /* ARGSUSED */ 136 static int 137 sctp_faddr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 138 { 139 sctp_faddr_t fa[1]; 140 char *statestr; 141 142 if (!(flags & DCMD_ADDRSPEC)) 143 return (DCMD_USAGE); 144 145 if (mdb_vread(fa, sizeof (*fa), addr) == -1) { 146 mdb_warn("cannot read fadder at %p", addr); 147 return (DCMD_ERR); 148 } 149 150 statestr = sctp_faddr_state(fa->state); 151 mdb_printf("%<u>%p\t%<b>%N%</b>\t%s%</u>\n", addr, &fa->faddr, 152 statestr); 153 mdb_printf("next\t\t%?p\tsaddr\t%N\n", fa->next, &fa->saddr); 154 mdb_printf("rto\t\t%?d\tsrtt\t\t%?d\n", fa->rto, fa->srtt); 155 mdb_printf("rttvar\t\t%?d\trtt_updates\t%?u\n", fa->rttvar, 156 fa->rtt_updates); 157 mdb_printf("strikes\t\t%?d\tmax_retr\t%?d\n", fa->strikes, 158 fa->max_retr); 159 mdb_printf("hb_expiry\t%?ld\thb_interval\t%?u\n", fa->hb_expiry, 160 fa->hb_interval); 161 mdb_printf("pmss\t\t%?u\tcwnd\t\t%?u\n", fa->sfa_pmss, fa->cwnd); 162 mdb_printf("ssthresh\t%?u\tsuna\t\t%?u\n", fa->ssthresh, fa->suna); 163 mdb_printf("pba\t\t%?u\tacked\t\t%?u\n", fa->pba, fa->acked); 164 mdb_printf("lastactive\t%?ld\thb_secret\t%?#lx\n", fa->lastactive, 165 fa->hb_secret); 166 mdb_printf("timer_mp\t%?p\tire\t\t%?p\n", fa->timer_mp, fa->ire); 167 mdb_printf("hb_pending\t%?d\ttimer_running\t%?d\n" 168 "df\t\t%?d\tpmtu_discovered\t%?d\n" 169 "isv4\t\t%?d\tretransmissions\t%?u\n", 170 fa->hb_pending, fa->timer_running, fa->df, fa->pmtu_discovered, 171 fa->isv4, fa->T3expire); 172 173 return (DCMD_OK); 174 } 175 176 static void 177 print_set(sctp_set_t *sp) 178 { 179 mdb_printf("\tbegin\t%<b>%?x%</b>\t\tend\t%<b>%?x%</b>\n", 180 sp->begin, sp->end); 181 mdb_printf("\tnext\t%?p\tprev\t%?p\n", sp->next, sp->prev); 182 } 183 184 /* ARGSUSED */ 185 static int 186 sctp_set(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 187 { 188 sctp_set_t sp[1]; 189 190 if (!(flags & DCMD_ADDRSPEC)) 191 return (DCMD_USAGE); 192 193 if (mdb_vread(sp, sizeof (*sp), addr) == -1) 194 return (DCMD_ERR); 195 196 print_set(sp); 197 198 return (DCMD_OK); 199 } 200 201 static void 202 dump_sack_info(uintptr_t addr) 203 { 204 sctp_set_t sp[1]; 205 206 while (addr != 0) { 207 if (mdb_vread(sp, sizeof (*sp), addr) == -1) { 208 mdb_warn("failed to read sctp_set at %p", addr); 209 return; 210 } 211 212 addr = (uintptr_t)sp->next; 213 print_set(sp); 214 } 215 } 216 217 static int 218 dump_msghdr(mblk_t *meta) 219 { 220 sctp_msg_hdr_t smh; 221 222 if (mdb_vread(&smh, sizeof (smh), (uintptr_t)meta->b_rptr) == -1) 223 return (-1); 224 225 mdb_printf("%<u>msg_hdr_t at \t%?p\tsentto\t%?p%</u>\n", 226 meta->b_rptr, SCTP_CHUNK_DEST(meta)); 227 mdb_printf("\tttl\t%?ld\ttob\t%?ld\n", smh.smh_ttl, smh.smh_tob); 228 mdb_printf("\tsid\t%?u\tssn\t%?u\n", smh.smh_sid, smh.smh_ssn); 229 mdb_printf("\tppid\t%?u\tflags\t%?s\n", smh.smh_ppid, 230 smh.smh_flags & MSG_UNORDERED ? "unordered" : " "); 231 mdb_printf("\tcontext\t%?u\tmsglen\t%?d\n", smh.smh_context, 232 smh.smh_msglen); 233 234 return (0); 235 } 236 237 static int 238 dump_datahdr(mblk_t *mp) 239 { 240 sctp_data_hdr_t sdc; 241 uint16_t sdh_int16; 242 uint32_t sdh_int32; 243 244 if (mdb_vread(&sdc, sizeof (sdc), (uintptr_t)mp->b_rptr) == -1) 245 return (-1); 246 247 mdb_printf("%<u>data_chunk_t \t%?p\tsentto\t%?p%</u>\n", 248 mp->b_rptr, SCTP_CHUNK_DEST(mp)); 249 mdb_printf("\tsent\t%?d\t", SCTP_CHUNK_ISSENT(mp)?1:0); 250 mdb_printf("retrans\t%?d\n", SCTP_CHUNK_WANT_REXMIT(mp)?1:0); 251 mdb_printf("\tacked\t%?d\t", SCTP_CHUNK_ISACKED(mp)?1:0); 252 mdb_printf("sackcnt\t%?u\n", SCTP_CHUNK_SACKCNT(mp)); 253 254 mdb_nhconvert(&sdh_int16, &sdc.sdh_len, sizeof (sdc.sdh_len)); 255 mdb_printf("\tlen\t%?d\t", sdh_int16); 256 mdb_printf("BBIT=%d", SCTP_DATA_GET_BBIT(&sdc) == 0 ? 0 : 1); 257 mdb_printf("EBIT=%d", SCTP_DATA_GET_EBIT(&sdc) == 0 ? 0 : 1); 258 259 mdb_nhconvert(&sdh_int32, &sdc.sdh_tsn, sizeof (sdc.sdh_tsn)); 260 mdb_nhconvert(&sdh_int16, &sdc.sdh_sid, sizeof (sdc.sdh_sid)); 261 mdb_printf("\ttsn\t%?x\tsid\t%?hu\n", sdh_int32, sdh_int16); 262 263 mdb_nhconvert(&sdh_int16, &sdc.sdh_ssn, sizeof (sdc.sdh_ssn)); 264 mdb_nhconvert(&sdh_int32, &sdc.sdh_payload_id, 265 sizeof (sdc.sdh_payload_id)); 266 mdb_printf("\tssn\t%?hu\tppid\t%?d\n", sdh_int16, sdh_int32); 267 268 return (0); 269 } 270 271 static int 272 sctp_sent_list(mblk_t *addr) 273 { 274 mblk_t meta, mp; 275 276 if (!addr) 277 return (0); 278 279 if (mdb_vread(&meta, sizeof (meta), (uintptr_t)addr) == -1) 280 return (-1); 281 282 for (;;) { 283 dump_msghdr(&meta); 284 285 if (meta.b_cont == NULL) { 286 mdb_printf("No data chunks with message header!\n"); 287 return (-1); 288 } 289 if (mdb_vread(&mp, sizeof (mp), 290 (uintptr_t)meta.b_cont) == -1) { 291 return (-1); 292 } 293 for (;;) { 294 dump_datahdr(&mp); 295 if (!mp.b_next) 296 break; 297 298 if (mdb_vread(&mp, sizeof (mp), 299 (uintptr_t)(mp.b_next)) == -1) 300 return (-1); 301 } 302 if (meta.b_next == NULL) 303 break; 304 if (mdb_vread(&meta, sizeof (meta), 305 (uintptr_t)meta.b_next) == -1) 306 return (-1); 307 } 308 309 return (0); 310 } 311 312 static int 313 sctp_unsent_list(mblk_t *addr) 314 { 315 mblk_t meta; 316 317 if (!addr) 318 return (0); 319 320 if (mdb_vread(&meta, sizeof (meta), (uintptr_t)addr) == -1) 321 return (-1); 322 323 for (;;) { 324 dump_msghdr(&meta); 325 326 if (meta.b_next == NULL) 327 break; 328 329 if (mdb_vread(&meta, sizeof (meta), 330 (uintptr_t)meta.b_next) == -1) 331 return (-1); 332 } 333 334 return (0); 335 } 336 337 /* ARGSUSED */ 338 static int 339 sctp_xmit_list(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 340 { 341 sctp_t sctp; 342 343 if (!(flags & DCMD_ADDRSPEC)) 344 return (DCMD_USAGE); 345 346 if (mdb_vread(&sctp, sizeof (sctp), addr) == -1) 347 return (DCMD_ERR); 348 349 mdb_printf("%<b>Chunkified TX list%</b>\n"); 350 if (sctp_sent_list(sctp.sctp_xmit_head) < 0) 351 return (DCMD_ERR); 352 353 mdb_printf("%<b>Unchunkified TX list%</b>\n"); 354 if (sctp_unsent_list(sctp.sctp_xmit_unsent) < 0) 355 return (DCMD_ERR); 356 357 return (DCMD_OK); 358 } 359 360 /* ARGSUSED */ 361 static int 362 sctp_mdata_chunk(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 363 { 364 sctp_data_hdr_t dc; 365 mblk_t mp; 366 367 if (!(flags & DCMD_ADDRSPEC)) 368 return (DCMD_USAGE); 369 370 if (mdb_vread(&mp, sizeof (mp), addr) == -1) 371 return (DCMD_ERR); 372 373 if (mdb_vread(&dc, sizeof (dc), (uintptr_t)mp.b_rptr) == -1) 374 return (DCMD_ERR); 375 376 mdb_printf("%<b>%-?p%</b>tsn\t%?x\tsid\t%?hu\n", addr, 377 dc.sdh_tsn, dc.sdh_sid); 378 mdb_printf("%-?sssn\t%?hu\tppid\t%?x\n", "", dc.sdh_ssn, 379 dc.sdh_payload_id); 380 381 return (DCMD_OK); 382 } 383 384 /* ARGSUSED */ 385 static int 386 sctp_istr_msgs(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 387 { 388 mblk_t istrmp; 389 mblk_t dmp; 390 sctp_data_hdr_t dp; 391 uintptr_t daddr; 392 uintptr_t chaddr; 393 boolean_t bbit; 394 boolean_t ebit; 395 396 if (!(flags & DCMD_ADDRSPEC)) 397 return (DCMD_USAGE); 398 399 do { 400 if (mdb_vread(&istrmp, sizeof (istrmp), addr) == -1) 401 return (DCMD_ERR); 402 403 mdb_printf("\tistr mblk at %p: next: %?p\n" 404 "\t\tprev: %?p\tcont: %?p\n", addr, istrmp.b_next, 405 istrmp.b_prev, istrmp.b_cont); 406 daddr = (uintptr_t)&istrmp; 407 do { 408 if (mdb_vread(&dmp, sizeof (dmp), daddr) == -1) 409 break; 410 chaddr = (uintptr_t)dmp.b_rptr; 411 if (mdb_vread(&dp, sizeof (dp), chaddr) == -1) 412 break; 413 414 bbit = (SCTP_DATA_GET_BBIT(&dp) != 0); 415 ebit = (SCTP_DATA_GET_EBIT(&dp) != 0); 416 417 mdb_printf("\t\t\ttsn: %x bbit: %d ebit: %d\n", 418 dp.sdh_tsn, bbit, ebit); 419 420 421 daddr = (uintptr_t)dmp.b_cont; 422 } while (daddr != NULL); 423 424 addr = (uintptr_t)istrmp.b_next; 425 } while (addr != NULL); 426 427 return (DCMD_OK); 428 } 429 430 /* ARGSUSED */ 431 static int 432 sctp_reass_list(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 433 { 434 sctp_reass_t srp; 435 mblk_t srpmp; 436 sctp_data_hdr_t dp; 437 mblk_t dmp; 438 uintptr_t daddr; 439 uintptr_t chaddr; 440 boolean_t bbit, ebit; 441 442 if (!(flags & DCMD_ADDRSPEC)) 443 return (DCMD_USAGE); 444 445 do { 446 if (mdb_vread(&srpmp, sizeof (srpmp), addr) == -1) 447 return (DCMD_ERR); 448 449 if (mdb_vread(&srp, sizeof (srp), 450 (uintptr_t)srpmp.b_datap->db_base) == -1) 451 return (DCMD_ERR); 452 453 mdb_printf("\treassembly mblk at %p: next: %?p\n" 454 "\t\tprev: %?p\tcont: %?p\n", addr, srpmp.b_next, 455 srpmp.b_prev, srpmp.b_cont); 456 mdb_printf("\t\tssn: %hu\tneeded: %hu\tgot: %hu\ttail: %?p\n" 457 "\t\tpartial_delivered: %s\n", srp.ssn, srp.needed, 458 srp.got, srp.tail, srp.partial_delivered ? "TRUE" : 459 "FALSE"); 460 461 /* display the contents of this ssn's reassemby list */ 462 daddr = DB_TYPE(&srpmp) == M_CTL ? (uintptr_t)srpmp.b_cont : 463 (uintptr_t)&srpmp; 464 do { 465 if (mdb_vread(&dmp, sizeof (dmp), daddr) == -1) 466 break; 467 chaddr = (uintptr_t)dmp.b_rptr; 468 if (mdb_vread(&dp, sizeof (dp), chaddr) == -1) 469 break; 470 471 bbit = (SCTP_DATA_GET_BBIT(&dp) != 0); 472 ebit = (SCTP_DATA_GET_EBIT(&dp) != 0); 473 474 mdb_printf("\t\t\ttsn: %x bbit: %d ebit: %d\n", 475 dp.sdh_tsn, bbit, ebit); 476 477 daddr = (uintptr_t)dmp.b_cont; 478 } while (daddr != NULL); 479 480 addr = (uintptr_t)srpmp.b_next; 481 } while (addr != NULL); 482 483 return (DCMD_OK); 484 } 485 486 /* ARGSUSED */ 487 static int 488 sctp_uo_reass_list(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 489 { 490 sctp_data_hdr_t dp; 491 mblk_t dmp; 492 uintptr_t chaddr; 493 boolean_t bbit; 494 boolean_t ebit; 495 boolean_t ubit; 496 497 if (!(flags & DCMD_ADDRSPEC)) 498 return (DCMD_USAGE); 499 500 do { 501 if (mdb_vread(&dmp, sizeof (dmp), addr) == -1) 502 return (DCMD_ERR); 503 504 mdb_printf("\treassembly mblk at %p: next: %?p\n" 505 "\t\tprev: %?p\n", addr, dmp.b_next, dmp.b_prev); 506 507 chaddr = (uintptr_t)dmp.b_rptr; 508 if (mdb_vread(&dp, sizeof (dp), chaddr) == -1) 509 break; 510 511 bbit = (SCTP_DATA_GET_BBIT(&dp) != 0); 512 ebit = (SCTP_DATA_GET_EBIT(&dp) != 0); 513 ubit = (SCTP_DATA_GET_UBIT(&dp) != 0); 514 515 mdb_printf("\t\t\tsid: %hu ssn: %hu tsn: %x " 516 "flags: %x (U=%d B=%d E=%d)\n", dp.sdh_sid, dp.sdh_ssn, 517 dp.sdh_tsn, dp.sdh_flags, ubit, bbit, ebit); 518 519 addr = (uintptr_t)dmp.b_next; 520 } while (addr != NULL); 521 522 return (DCMD_OK); 523 } 524 525 static int 526 sctp_instr(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 527 { 528 sctp_instr_t sip; 529 530 if (!(flags & DCMD_ADDRSPEC)) 531 return (DCMD_USAGE); 532 533 if (mdb_vread(&sip, sizeof (sip), addr) == -1) 534 return (DCMD_ERR); 535 536 mdb_printf("%<b>%-?p%</b>\n\tmsglist\t%?p\tnmsgs\t%?d\n" 537 "\tnextseq\t%?d\treass\t%?p\n", addr, sip.istr_msgs, 538 sip.istr_nmsgs, sip.nextseq, sip.istr_reass); 539 mdb_set_dot(addr + sizeof (sip)); 540 541 return (sctp_reass_list((uintptr_t)sip.istr_reass, flags, ac, av)); 542 } 543 544 static const char * 545 state2str(sctp_t *sctp) 546 { 547 switch (sctp->sctp_state) { 548 case SCTPS_IDLE: return ("SCTPS_IDLE"); 549 case SCTPS_BOUND: return ("SCTPS_BOUND"); 550 case SCTPS_LISTEN: return ("SCTPS_LISTEN"); 551 case SCTPS_COOKIE_WAIT: return ("SCTPS_COOKIE_WAIT"); 552 case SCTPS_COOKIE_ECHOED: return ("SCTPS_COOKIE_ECHOED"); 553 case SCTPS_ESTABLISHED: return ("SCTPS_ESTABLISHED"); 554 case SCTPS_SHUTDOWN_PENDING: return ("SCTPS_SHUTDOWN_PENDING"); 555 case SCTPS_SHUTDOWN_SENT: return ("SCTPS_SHUTDOWN_SENT"); 556 case SCTPS_SHUTDOWN_RECEIVED: return ("SCTPS_SHUTDOWN_RECEIVED"); 557 case SCTPS_SHUTDOWN_ACK_SENT: return ("SCTPS_SHUTDOWN_ACK_SENT"); 558 default: return ("UNKNOWN STATE"); 559 } 560 } 561 562 static void 563 show_sctp_flags(sctp_t *sctp) 564 { 565 mdb_printf("\tunderstands_asconf\t%d\n", 566 sctp->sctp_understands_asconf); 567 mdb_printf("\tdebug\t\t\t%d\n", sctp->sctp_debug); 568 mdb_printf("\tcchunk_pend\t\t%d\n", sctp->sctp_cchunk_pend); 569 mdb_printf("\tdgram_errind\t\t%d\n", sctp->sctp_dgram_errind); 570 571 mdb_printf("\tlinger\t\t\t%d\n", sctp->sctp_linger); 572 if (sctp->sctp_lingering) 573 return; 574 mdb_printf("\tlingering\t\t%d\n", sctp->sctp_lingering); 575 mdb_printf("\tloopback\t\t%d\n", sctp->sctp_loopback); 576 mdb_printf("\tforce_sack\t\t%d\n", sctp->sctp_force_sack); 577 578 mdb_printf("\tack_timer_runing\t%d\n", sctp->sctp_ack_timer_running); 579 mdb_printf("\trecvdstaddr\t\t%d\n", sctp->sctp_recvdstaddr); 580 mdb_printf("\thwcksum\t\t\t%d\n", sctp->sctp_hwcksum); 581 mdb_printf("\tunderstands_addip\t%d\n", sctp->sctp_understands_addip); 582 583 mdb_printf("\tbound_to_all\t\t%d\n", sctp->sctp_bound_to_all); 584 mdb_printf("\tcansleep\t\t%d\n", sctp->sctp_cansleep); 585 mdb_printf("\tdetached\t\t%d\n", sctp->sctp_detached); 586 mdb_printf("\tsend_adaption\t\t%d\n", sctp->sctp_send_adaption); 587 588 mdb_printf("\trecv_adaption\t\t%d\n", sctp->sctp_recv_adaption); 589 mdb_printf("\tndelay\t\t\t%d\n", sctp->sctp_ndelay); 590 mdb_printf("\tcondemned\t\t%d\n", sctp->sctp_condemned); 591 mdb_printf("\tchk_fast_rexmit\t\t%d\n", sctp->sctp_chk_fast_rexmit); 592 593 mdb_printf("\tprsctp_aware\t\t%d\n", sctp->sctp_prsctp_aware); 594 mdb_printf("\tlinklocal\t\t%d\n", sctp->sctp_linklocal); 595 mdb_printf("\trexmitting\t\t%d\n", sctp->sctp_rexmitting); 596 mdb_printf("\tzero_win_probe\t\t%d\n", sctp->sctp_zero_win_probe); 597 598 mdb_printf("\trecvsndrcvinfo\t\t%d\n", sctp->sctp_recvsndrcvinfo); 599 mdb_printf("\trecvassocevnt\t\t%d\n", sctp->sctp_recvassocevnt); 600 mdb_printf("\trecvpathevnt\t\t%d\n", sctp->sctp_recvpathevnt); 601 mdb_printf("\trecvsendfailevnt\t%d\n", sctp->sctp_recvsendfailevnt); 602 603 mdb_printf("\trecvpeerevnt\t\t%d\n", sctp->sctp_recvpeererr); 604 mdb_printf("\trecvchutdownevnt\t%d\n", sctp->sctp_recvshutdownevnt); 605 mdb_printf("\trecvcpdnevnt\t\t%d\n", sctp->sctp_recvpdevnt); 606 mdb_printf("\trecvcalevnt\t\t%d\n\n", sctp->sctp_recvalevnt); 607 } 608 609 /* 610 * Given a sctp_saddr_ipif_t, print out its address. This assumes 611 * that addr contains the sctp_addr_ipif_t structure already and this 612 * function does not need to read it in. 613 */ 614 /* ARGSUSED */ 615 static int 616 print_saddr(uintptr_t ptr, const void *addr, void *cbdata) 617 { 618 sctp_saddr_ipif_t *saddr = (sctp_saddr_ipif_t *)addr; 619 sctp_ipif_t ipif; 620 char *statestr; 621 622 /* Read in the sctp_ipif object */ 623 if (mdb_vread(&ipif, sizeof (ipif), (uintptr_t)saddr->saddr_ipifp) == 624 -1) { 625 mdb_warn("cannot read ipif at %p", saddr->saddr_ipifp); 626 return (WALK_ERR); 627 } 628 629 switch (ipif.sctp_ipif_state) { 630 case SCTP_IPIFS_CONDEMNED: 631 statestr = "Condemned"; 632 break; 633 case SCTP_IPIFS_INVALID: 634 statestr = "Invalid"; 635 break; 636 case SCTP_IPIFS_DOWN: 637 statestr = "Down"; 638 break; 639 case SCTP_IPIFS_UP: 640 statestr = "Up"; 641 break; 642 default: 643 statestr = "Unknown"; 644 break; 645 } 646 mdb_printf("\t%p\t%N% (%s", saddr->saddr_ipifp, &ipif.sctp_ipif_saddr, 647 statestr); 648 if (saddr->saddr_ipif_dontsrc == 1) 649 mdb_printf("/Dontsrc"); 650 if (saddr->saddr_ipif_unconfirmed == 1) 651 mdb_printf("/Unconfirmed"); 652 if (saddr->saddr_ipif_delete_pending == 1) 653 mdb_printf("/DeletePending"); 654 mdb_printf(")\n"); 655 mdb_printf("\t\t\tMTU %d id %d zoneid %d IPIF flags %x\n", 656 ipif.sctp_ipif_mtu, ipif.sctp_ipif_id, 657 ipif.sctp_ipif_zoneid, ipif.sctp_ipif_flags); 658 return (WALK_NEXT); 659 } 660 661 /* 662 * Given a sctp_faddr_t, print out its address. This assumes that 663 * addr contains the sctp_faddr_t structure already and this function 664 * does not need to read it in. 665 */ 666 static int 667 print_faddr(uintptr_t ptr, const void *addr, void *cbdata) 668 { 669 char *statestr; 670 sctp_faddr_t *faddr = (sctp_faddr_t *)addr; 671 int *i = cbdata; 672 673 statestr = sctp_faddr_state(faddr->state); 674 675 mdb_printf("\t%d:\t%N\t%?p (%s)\n", (*i)++, &faddr->faddr, ptr, 676 statestr); 677 return (WALK_NEXT); 678 } 679 680 int 681 sctp(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 682 { 683 sctp_t sctp; 684 conn_t connp; 685 int i; 686 uint_t opts = 0; 687 uint_t paddr = 0; 688 in_port_t lport, fport; 689 690 if (!(flags & DCMD_ADDRSPEC)) 691 return (DCMD_USAGE); 692 693 if (mdb_vread(&sctp, sizeof (sctp), addr) == -1) { 694 mdb_warn("failed to read sctp_t at: %p\n", addr); 695 return (DCMD_ERR); 696 } 697 if (mdb_vread(&connp, sizeof (connp), 698 (uintptr_t)sctp.sctp_connp) == -1) { 699 mdb_warn("failed to read conn_t at: %p\n", sctp.sctp_connp); 700 return (DCMD_ERR); 701 } 702 703 if (mdb_getopts(argc, argv, 704 'a', MDB_OPT_SETBITS, MDB_SCTP_SHOW_ALL, &opts, 705 'f', MDB_OPT_SETBITS, MDB_SCTP_SHOW_FLAGS, &opts, 706 'h', MDB_OPT_SETBITS, MDB_SCTP_SHOW_HASH, &opts, 707 'o', MDB_OPT_SETBITS, MDB_SCTP_SHOW_OUT, &opts, 708 'i', MDB_OPT_SETBITS, MDB_SCTP_SHOW_IN, &opts, 709 'm', MDB_OPT_SETBITS, MDB_SCTP_SHOW_MISC, &opts, 710 'r', MDB_OPT_SETBITS, MDB_SCTP_SHOW_RTT, &opts, 711 'S', MDB_OPT_SETBITS, MDB_SCTP_SHOW_STATS, &opts, 712 'F', MDB_OPT_SETBITS, MDB_SCTP_SHOW_FLOW, &opts, 713 'H', MDB_OPT_SETBITS, MDB_SCTP_SHOW_HDR, &opts, 714 'p', MDB_OPT_SETBITS, MDB_SCTP_SHOW_PMTUD, &opts, 715 'R', MDB_OPT_SETBITS, MDB_SCTP_SHOW_RXT, &opts, 716 'C', MDB_OPT_SETBITS, MDB_SCTP_SHOW_CONN, &opts, 717 'c', MDB_OPT_SETBITS, MDB_SCTP_SHOW_CLOSE, &opts, 718 'e', MDB_OPT_SETBITS, MDB_SCTP_SHOW_EXT, &opts, 719 'P', MDB_OPT_SETBITS, 1, &paddr, 720 'd', MDB_OPT_SETBITS, MDB_SCTP_DUMP_ADDRS, &opts) != argc) { 721 return (DCMD_USAGE); 722 } 723 724 /* non-verbose faddrs, suitable for pipelines to sctp_faddr */ 725 if (paddr != 0) { 726 sctp_faddr_t faddr, *fp; 727 for (fp = sctp.sctp_faddrs; fp != NULL; fp = faddr.next) { 728 if (mdb_vread(&faddr, sizeof (faddr), (uintptr_t)fp) 729 == -1) { 730 mdb_warn("failed to read faddr at %p", 731 fp); 732 return (DCMD_ERR); 733 } 734 mdb_printf("%p\n", fp); 735 } 736 return (DCMD_OK); 737 } 738 739 mdb_nhconvert(&lport, &sctp.sctp_lport, sizeof (lport)); 740 mdb_nhconvert(&fport, &sctp.sctp_fport, sizeof (fport)); 741 mdb_printf("%<u>%p% %22s S=%-6hu D=%-6hu% STACK=%d ZONE=%d%</u>", addr, 742 state2str(&sctp), lport, fport, 743 ns_to_stackid((uintptr_t)connp.conn_netstack), connp.conn_zoneid); 744 745 if (sctp.sctp_faddrs) { 746 sctp_faddr_t faddr; 747 if (mdb_vread(&faddr, sizeof (faddr), 748 (uintptr_t)sctp.sctp_faddrs) != -1) 749 mdb_printf("%<u> %N%</u>", &faddr.faddr); 750 } 751 mdb_printf("\n"); 752 753 if (opts & MDB_SCTP_DUMP_ADDRS) { 754 mdb_printf("%<b>Local and Peer Addresses%</b>\n"); 755 756 /* Display source addresses */ 757 mdb_printf("nsaddrs\t\t%?d\n", sctp.sctp_nsaddrs); 758 (void) mdb_pwalk("sctp_walk_saddr", print_saddr, NULL, addr); 759 760 /* Display peer addresses */ 761 mdb_printf("nfaddrs\t\t%?d\n", sctp.sctp_nfaddrs); 762 i = 1; 763 (void) mdb_pwalk("sctp_walk_faddr", print_faddr, &i, addr); 764 765 mdb_printf("lastfaddr\t%?p\tprimary\t\t%?p\n", 766 sctp.sctp_lastfaddr, sctp.sctp_primary); 767 mdb_printf("current\t\t%?p\tlastdata\t%?p\n", 768 sctp.sctp_current, sctp.sctp_lastdata); 769 } 770 771 if (opts & MDB_SCTP_SHOW_OUT) { 772 mdb_printf("%<b>Outbound Data%</b>\n"); 773 mdb_printf("xmit_head\t%?p\txmit_tail\t%?p\n", 774 sctp.sctp_xmit_head, sctp.sctp_xmit_tail); 775 mdb_printf("xmit_unsent\t%?p\txmit_unsent_tail%?p\n", 776 sctp.sctp_xmit_unsent, sctp.sctp_xmit_unsent_tail); 777 mdb_printf("xmit_unacked\t%?p\n", sctp.sctp_xmit_unacked); 778 mdb_printf("unacked\t\t%?u\tunsent\t\t%?ld\n", 779 sctp.sctp_unacked, sctp.sctp_unsent); 780 mdb_printf("ltsn\t\t%?x\tlastack_rxd\t%?x\n", 781 sctp.sctp_ltsn, sctp.sctp_lastack_rxd); 782 mdb_printf("recovery_tsn\t%?x\tadv_pap\t\t%?x\n", 783 sctp.sctp_recovery_tsn, sctp.sctp_adv_pap); 784 mdb_printf("num_ostr\t%?hu\tostrcntrs\t%?p\n", 785 sctp.sctp_num_ostr, sctp.sctp_ostrcntrs); 786 787 mdb_printf("%<b>Default Send Parameters%</b>\n"); 788 mdb_printf("def_stream\t%?u\tdef_flags\t%?x\n", 789 sctp.sctp_def_stream, sctp.sctp_def_flags); 790 mdb_printf("def_ppid\t%?x\tdef_context\t%?x\n", 791 sctp.sctp_def_ppid, sctp.sctp_def_context); 792 mdb_printf("def_timetolive\t%?u\n", 793 sctp.sctp_def_timetolive); 794 } 795 796 if (opts & MDB_SCTP_SHOW_IN) { 797 mdb_printf("%<b>Inbound Data%</b>\n"); 798 mdb_printf("sack_info\t%?p\tsack_gaps\t%?d\n", 799 sctp.sctp_sack_info, sctp.sctp_sack_gaps); 800 dump_sack_info((uintptr_t)sctp.sctp_sack_info); 801 mdb_printf("ftsn\t\t%?x\tlastacked\t%?x\n", 802 sctp.sctp_ftsn, sctp.sctp_lastacked); 803 mdb_printf("istr_nmsgs\t%?d\tsack_toggle\t%?d\n", 804 sctp.sctp_istr_nmsgs, sctp.sctp_sack_toggle); 805 mdb_printf("ack_mp\t\t%?p\n", sctp.sctp_ack_mp); 806 mdb_printf("num_istr\t%?hu\tinstr\t\t%?p\n", 807 sctp.sctp_num_istr, sctp.sctp_instr); 808 mdb_printf("unord_reass\t%?p\n", sctp.sctp_uo_frags); 809 } 810 811 if (opts & MDB_SCTP_SHOW_RTT) { 812 mdb_printf("%<b>RTT Tracking%</b>\n"); 813 mdb_printf("rtt_tsn\t\t%?x\tout_time\t%?ld\n", 814 sctp.sctp_rtt_tsn, sctp.sctp_out_time); 815 } 816 817 if (opts & MDB_SCTP_SHOW_FLOW) { 818 mdb_printf("%<b>Flow Control%</b>\n"); 819 mdb_printf("txmit_hiwater\t%?d\n" 820 "xmit_lowater\t%?d\tfrwnd\t\t%?u\n" 821 "rwnd\t\t%?u\tinitial rwnd\t%?u\n" 822 "rxqueued\t%?u\tcwnd_max\t%?u\n", sctp.sctp_xmit_hiwater, 823 sctp.sctp_xmit_lowater, sctp.sctp_frwnd, 824 sctp.sctp_rwnd, sctp.sctp_irwnd, sctp.sctp_rxqueued, 825 sctp.sctp_cwnd_max); 826 } 827 828 if (opts & MDB_SCTP_SHOW_HDR) { 829 mdb_printf("%<b>Composite Headers%</b>\n"); 830 mdb_printf("iphc\t\t%?p\tiphc6\t\t%?p\n" 831 "iphc_len\t%?d\tiphc6_len\t%?d\n" 832 "hdr_len\t\t%?d\thdr6_len\t%?d\n" 833 "ipha\t\t%?p\tip6h\t\t%?p\n" 834 "ip_hdr_len\t%?d\tip_hdr6_len\t%?d\n" 835 "sctph\t\t%?p\tsctph6\t\t%?p\n" 836 "lvtag\t\t%?x\tfvtag\t\t%?x\n", sctp.sctp_iphc, 837 sctp.sctp_iphc6, sctp.sctp_iphc_len, 838 sctp.sctp_iphc6_len, sctp.sctp_hdr_len, 839 sctp.sctp_hdr6_len, sctp.sctp_ipha, sctp.sctp_ip6h, 840 sctp.sctp_ip_hdr_len, sctp.sctp_ip_hdr6_len, 841 sctp.sctp_sctph, sctp.sctp_sctph6, sctp.sctp_lvtag, 842 sctp.sctp_fvtag); 843 } 844 845 if (opts & MDB_SCTP_SHOW_PMTUD) { 846 mdb_printf("%<b>PMTUd%</b>\n"); 847 mdb_printf("last_mtu_probe\t%?ld\tmtu_probe_intvl\t%?ld\n" 848 "mss\t\t%?u\n", 849 sctp.sctp_last_mtu_probe, sctp.sctp_mtu_probe_intvl, 850 sctp.sctp_mss); 851 } 852 853 if (opts & MDB_SCTP_SHOW_RXT) { 854 mdb_printf("%<b>Retransmit Info%</b>\n"); 855 mdb_printf("cookie_mp\t%?p\tstrikes\t\t%?d\n" 856 "max_init_rxt\t%?d\tpa_max_rxt\t%?d\n" 857 "pp_max_rxt\t%?d\trto_max\t\t%?u\n" 858 "rto_min\t\t%?u\trto_initial\t%?u\n" 859 "init_rto_max\t%?u\n" 860 "rxt_nxttsn\t%?u\trxt_maxtsn\t%?u\n", sctp.sctp_cookie_mp, 861 sctp.sctp_strikes, sctp.sctp_max_init_rxt, 862 sctp.sctp_pa_max_rxt, sctp.sctp_pp_max_rxt, 863 sctp.sctp_rto_max, sctp.sctp_rto_min, 864 sctp.sctp_rto_initial, sctp.sctp_init_rto_max, 865 sctp.sctp_rxt_nxttsn, sctp.sctp_rxt_maxtsn); 866 } 867 868 if (opts & MDB_SCTP_SHOW_CONN) { 869 mdb_printf("%<b>Connection State%</b>\n"); 870 mdb_printf("last_secret_update%?ld\n", 871 sctp.sctp_last_secret_update); 872 873 mdb_printf("secret\t\t"); 874 for (i = 0; i < SCTP_SECRET_LEN; i++) { 875 if (i % 2 == 0) 876 mdb_printf("0x%02x", sctp.sctp_secret[i]); 877 else 878 mdb_printf("%02x ", sctp.sctp_secret[i]); 879 } 880 mdb_printf("\n"); 881 mdb_printf("old_secret\t"); 882 for (i = 0; i < SCTP_SECRET_LEN; i++) { 883 if (i % 2 == 0) 884 mdb_printf("0x%02x", sctp.sctp_old_secret[i]); 885 else 886 mdb_printf("%02x ", sctp.sctp_old_secret[i]); 887 } 888 mdb_printf("\n"); 889 } 890 891 if (opts & MDB_SCTP_SHOW_STATS) { 892 mdb_printf("%<b>Stats Counters%</b>\n"); 893 mdb_printf("opkts\t\t%?llu\tobchunks\t%?llu\n" 894 "odchunks\t%?llu\toudchunks\t%?llu\n" 895 "rxtchunks\t%?llu\tT1expire\t%?lu\n" 896 "T2expire\t%?lu\tT3expire\t%?lu\n" 897 "msgcount\t%?llu\tprsctpdrop\t%?llu\n" 898 "AssocStartTime\t%?lu\n", 899 sctp.sctp_opkts, sctp.sctp_obchunks, 900 sctp.sctp_odchunks, sctp.sctp_oudchunks, 901 sctp.sctp_rxtchunks, sctp.sctp_T1expire, 902 sctp.sctp_T2expire, sctp.sctp_T3expire, 903 sctp.sctp_msgcount, sctp.sctp_prsctpdrop, 904 sctp.sctp_assoc_start_time); 905 mdb_printf("ipkts\t\t%?llu\tibchunks\t%?llu\n" 906 "idchunks\t%?llu\tiudchunks\t%?llu\n" 907 "fragdmsgs\t%?llu\treassmsgs\t%?llu\n", 908 sctp.sctp_ipkts, sctp.sctp_ibchunks, 909 sctp.sctp_idchunks, sctp.sctp_iudchunks, 910 sctp.sctp_fragdmsgs, sctp.sctp_reassmsgs); 911 } 912 913 if (opts & MDB_SCTP_SHOW_HASH) { 914 mdb_printf("%<b>Hash Tables%</b>\n"); 915 mdb_printf("conn_hash_next\t%?p\t", sctp.sctp_conn_hash_next); 916 mdb_printf("conn_hash_prev\t%?p\n", sctp.sctp_conn_hash_prev); 917 918 mdb_printf("listen_hash_next%?p\t", 919 sctp.sctp_listen_hash_next); 920 mdb_printf("listen_hash_prev%?p\n", 921 sctp.sctp_listen_hash_prev); 922 mdb_nhconvert(&lport, &sctp.sctp_lport, sizeof (lport)); 923 mdb_printf("[ listen_hash bucket\t%?d ]\n", 924 SCTP_LISTEN_HASH(lport)); 925 926 mdb_printf("conn_tfp\t%?p\t", sctp.sctp_conn_tfp); 927 mdb_printf("listen_tfp\t%?p\n", sctp.sctp_listen_tfp); 928 929 mdb_printf("bind_hash\t%?p\tptpbhn\t\t%?p\n", 930 sctp.sctp_bind_hash, sctp.sctp_ptpbhn); 931 mdb_printf("bind_lockp\t%?p\n", 932 sctp.sctp_bind_lockp); 933 mdb_printf("[ bind_hash bucket\t%?d ]\n", 934 SCTP_BIND_HASH(lport)); 935 } 936 937 if (opts & MDB_SCTP_SHOW_CLOSE) { 938 mdb_printf("%<b>Cleanup / Close%</b>\n"); 939 mdb_printf("shutdown_faddr\t%?p\tclient_errno\t%?d\n" 940 "lingertime\t%?d\trefcnt\t\t%?hu\n", 941 sctp.sctp_shutdown_faddr, sctp.sctp_client_errno, 942 sctp.sctp_lingertime, sctp.sctp_refcnt); 943 } 944 945 if (opts & MDB_SCTP_SHOW_MISC) { 946 mdb_printf("%<b>Miscellaneous%</b>\n"); 947 mdb_printf("bound_if\t%?u\theartbeat_mp\t%?p\n" 948 "family\t\t%?u\tipversion\t%?hu\n" 949 "hb_interval\t%?u\tautoclose\t%?d\n" 950 "active\t\t%?ld\ttx_adaption_code%?x\n" 951 "rx_adaption_code%?x\ttimer_mp\t%?p\n", 952 sctp.sctp_bound_if, sctp.sctp_heartbeat_mp, 953 sctp.sctp_family, sctp.sctp_ipversion, 954 sctp.sctp_hb_interval, sctp.sctp_autoclose, 955 sctp.sctp_active, sctp.sctp_tx_adaption_code, 956 sctp.sctp_rx_adaption_code, sctp.sctp_timer_mp); 957 } 958 959 if (opts & MDB_SCTP_SHOW_EXT) { 960 mdb_printf("%<b>Extensions and Reliable Ctl Chunks%</b>\n"); 961 mdb_printf("cxmit_list\t%?p\tlcsn\t\t%?x\n" 962 "fcsn\t\t%?x\n", sctp.sctp_cxmit_list, sctp.sctp_lcsn, 963 sctp.sctp_fcsn); 964 } 965 966 if (opts & MDB_SCTP_SHOW_FLAGS) { 967 mdb_printf("%<b>Flags%</b>\n"); 968 show_sctp_flags(&sctp); 969 } 970 971 return (DCMD_OK); 972 } 973 974 typedef struct fanout_walk_data { 975 int index; 976 int size; 977 uintptr_t sctp; 978 sctp_tf_t *fanout; 979 uintptr_t (*getnext)(sctp_t *); 980 } fanout_walk_data_t; 981 982 typedef struct fanout_init { 983 const char *nested_walker_name; 984 size_t offset; /* for what used to be a symbol */ 985 int (*getsize)(sctp_stack_t *); 986 uintptr_t (*getnext)(sctp_t *); 987 } fanout_init_t; 988 989 static uintptr_t 990 listen_next(sctp_t *sctp) 991 { 992 return ((uintptr_t)sctp->sctp_listen_hash_next); 993 } 994 995 /* ARGSUSED */ 996 static int 997 listen_size(sctp_stack_t *sctps) 998 { 999 return (SCTP_LISTEN_FANOUT_SIZE); 1000 } 1001 1002 static uintptr_t 1003 conn_next(sctp_t *sctp) 1004 { 1005 return ((uintptr_t)sctp->sctp_conn_hash_next); 1006 } 1007 1008 static int 1009 conn_size(sctp_stack_t *sctps) 1010 { 1011 int size; 1012 uintptr_t kaddr; 1013 1014 kaddr = (uintptr_t)&sctps->sctps_conn_hash_size; 1015 1016 if (mdb_vread(&size, sizeof (size), kaddr) == -1) { 1017 mdb_warn("can't read 'sctps_conn_hash_size' at %p", kaddr); 1018 return (1); 1019 } 1020 return (size); 1021 } 1022 1023 static uintptr_t 1024 bind_next(sctp_t *sctp) 1025 { 1026 return ((uintptr_t)sctp->sctp_bind_hash); 1027 } 1028 1029 /* ARGSUSED */ 1030 static int 1031 bind_size(sctp_stack_t *sctps) 1032 { 1033 return (SCTP_BIND_FANOUT_SIZE); 1034 } 1035 1036 static intptr_t 1037 find_next_hash_item(fanout_walk_data_t *fw) 1038 { 1039 sctp_tf_t tf; 1040 sctp_t sctp; 1041 1042 /* first try to continue down the hash chain */ 1043 if (fw->sctp != NULL) { 1044 /* try to get next in hash chain */ 1045 if (mdb_vread(&sctp, sizeof (sctp), fw->sctp) == -1) { 1046 mdb_warn("failed to read sctp at %p", fw->sctp); 1047 return (NULL); 1048 } 1049 fw->sctp = fw->getnext(&sctp); 1050 if (fw->sctp != NULL) 1051 return (fw->sctp); 1052 else 1053 /* end of chain; go to next bucket */ 1054 fw->index++; 1055 } 1056 1057 /* find a new hash chain, traversing the buckets */ 1058 for (; fw->index < fw->size; fw->index++) { 1059 /* read the current hash line for an sctp */ 1060 if (mdb_vread(&tf, sizeof (tf), 1061 (uintptr_t)(fw->fanout + fw->index)) == -1) { 1062 mdb_warn("failed to read tf at %p", 1063 fw->fanout + fw->index); 1064 return (NULL); 1065 } 1066 if (tf.tf_sctp != NULL) { 1067 /* start of a new chain */ 1068 fw->sctp = (uintptr_t)tf.tf_sctp; 1069 return (fw->sctp); 1070 } 1071 } 1072 return (NULL); 1073 } 1074 1075 static int 1076 fanout_stack_walk_init(mdb_walk_state_t *wsp) 1077 { 1078 fanout_walk_data_t *lw; 1079 fanout_init_t *fi = wsp->walk_arg; 1080 sctp_stack_t *sctps = (sctp_stack_t *)wsp->walk_addr; 1081 uintptr_t kaddr; 1082 1083 if (mdb_vread(&kaddr, sizeof (kaddr), 1084 wsp->walk_addr + fi->offset) == -1) { 1085 mdb_warn("can't read sctp fanout at %p", 1086 wsp->walk_addr + fi->offset); 1087 return (WALK_ERR); 1088 } 1089 1090 lw = mdb_alloc(sizeof (*lw), UM_SLEEP); 1091 lw->index = 0; 1092 lw->size = fi->getsize(sctps); 1093 lw->sctp = NULL; 1094 lw->fanout = (sctp_tf_t *)kaddr; 1095 lw->getnext = fi->getnext; 1096 1097 if ((wsp->walk_addr = find_next_hash_item(lw)) == NULL) { 1098 return (WALK_DONE); 1099 } 1100 wsp->walk_data = lw; 1101 return (WALK_NEXT); 1102 } 1103 1104 static int 1105 fanout_stack_walk_step(mdb_walk_state_t *wsp) 1106 { 1107 fanout_walk_data_t *fw = wsp->walk_data; 1108 uintptr_t addr = wsp->walk_addr; 1109 sctp_t sctp; 1110 int status; 1111 1112 if (mdb_vread(&sctp, sizeof (sctp), addr) == -1) { 1113 mdb_warn("failed to read sctp at %p", addr); 1114 return (WALK_DONE); 1115 } 1116 1117 status = wsp->walk_callback(addr, &sctp, wsp->walk_cbdata); 1118 if (status != WALK_NEXT) 1119 return (status); 1120 1121 if ((wsp->walk_addr = find_next_hash_item(fw)) == NULL) 1122 return (WALK_DONE); 1123 1124 return (WALK_NEXT); 1125 } 1126 1127 static void 1128 fanout_stack_walk_fini(mdb_walk_state_t *wsp) 1129 { 1130 fanout_walk_data_t *fw = wsp->walk_data; 1131 1132 mdb_free(fw, sizeof (*fw)); 1133 } 1134 1135 int 1136 fanout_walk_init(mdb_walk_state_t *wsp) 1137 { 1138 if (mdb_layered_walk("sctp_stacks", wsp) == -1) { 1139 mdb_warn("can't walk 'sctp_stacks'"); 1140 return (WALK_ERR); 1141 } 1142 1143 return (WALK_NEXT); 1144 } 1145 1146 int 1147 fanout_walk_step(mdb_walk_state_t *wsp) 1148 { 1149 fanout_init_t *fi = wsp->walk_arg; 1150 1151 if (mdb_pwalk(fi->nested_walker_name, wsp->walk_callback, 1152 wsp->walk_cbdata, wsp->walk_addr) == -1) { 1153 mdb_warn("couldn't walk '%s'for address %p", 1154 fi->nested_walker_name, wsp->walk_addr); 1155 return (WALK_ERR); 1156 } 1157 return (WALK_NEXT); 1158 } 1159 1160 int 1161 sctps_walk_init(mdb_walk_state_t *wsp) 1162 { 1163 1164 if (mdb_layered_walk("sctp_stacks", wsp) == -1) { 1165 mdb_warn("can't walk 'sctp_stacks'"); 1166 return (WALK_ERR); 1167 } 1168 1169 return (WALK_NEXT); 1170 } 1171 1172 int 1173 sctps_walk_step(mdb_walk_state_t *wsp) 1174 { 1175 uintptr_t kaddr; 1176 1177 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_list); 1178 if (mdb_pwalk("list", wsp->walk_callback, 1179 wsp->walk_cbdata, kaddr) == -1) { 1180 mdb_warn("couldn't walk 'list' for address %p", kaddr); 1181 return (WALK_ERR); 1182 } 1183 return (WALK_NEXT); 1184 } 1185 1186 static int 1187 sctp_walk_faddr_init(mdb_walk_state_t *wsp) 1188 { 1189 sctp_t sctp; 1190 1191 if (wsp->walk_addr == NULL) 1192 return (WALK_ERR); 1193 1194 if (mdb_vread(&sctp, sizeof (sctp), wsp->walk_addr) == -1) { 1195 mdb_warn("failed to read sctp at %p", wsp->walk_addr); 1196 return (WALK_ERR); 1197 } 1198 if ((wsp->walk_addr = (uintptr_t)sctp.sctp_faddrs) != NULL) 1199 return (WALK_NEXT); 1200 else 1201 return (WALK_DONE); 1202 } 1203 1204 static int 1205 sctp_walk_faddr_step(mdb_walk_state_t *wsp) 1206 { 1207 uintptr_t faddr_ptr = wsp->walk_addr; 1208 sctp_faddr_t sctp_faddr; 1209 int status; 1210 1211 if (mdb_vread(&sctp_faddr, sizeof (sctp_faddr_t), faddr_ptr) == -1) { 1212 mdb_warn("failed to read sctp_faddr_t at %p", faddr_ptr); 1213 return (WALK_ERR); 1214 } 1215 status = wsp->walk_callback(faddr_ptr, &sctp_faddr, wsp->walk_cbdata); 1216 if (status != WALK_NEXT) 1217 return (status); 1218 if ((faddr_ptr = (uintptr_t)sctp_faddr.next) == NULL) { 1219 return (WALK_DONE); 1220 } else { 1221 wsp->walk_addr = faddr_ptr; 1222 return (WALK_NEXT); 1223 } 1224 } 1225 1226 /* 1227 * Helper structure for sctp_walk_saddr. It stores the sctp_t being walked, 1228 * the current index to the sctp_saddrs[], and the current count of the 1229 * sctp_saddr_ipif_t list. 1230 */ 1231 typedef struct { 1232 sctp_t sctp; 1233 int hash_index; 1234 int cur_cnt; 1235 } saddr_walk_t; 1236 1237 static int 1238 sctp_walk_saddr_init(mdb_walk_state_t *wsp) 1239 { 1240 sctp_t *sctp; 1241 int i; 1242 saddr_walk_t *swalker; 1243 1244 if (wsp->walk_addr == NULL) 1245 return (WALK_ERR); 1246 1247 swalker = mdb_alloc(sizeof (saddr_walk_t), UM_SLEEP); 1248 sctp = &swalker->sctp; 1249 if (mdb_vread(sctp, sizeof (sctp_t), wsp->walk_addr) == -1) { 1250 mdb_warn("failed to read sctp at %p", wsp->walk_addr); 1251 mdb_free(swalker, sizeof (saddr_walk_t)); 1252 return (WALK_ERR); 1253 } 1254 1255 /* Find the first source address. */ 1256 for (i = 0; i < SCTP_IPIF_HASH; i++) { 1257 if (sctp->sctp_saddrs[i].ipif_count > 0) { 1258 list_t *addr_list; 1259 1260 addr_list = &sctp->sctp_saddrs[i].sctp_ipif_list; 1261 wsp->walk_addr = (uintptr_t)list_object(addr_list, 1262 addr_list->list_head.list_next); 1263 1264 /* Recode the current info */ 1265 swalker->hash_index = i; 1266 swalker->cur_cnt = 1; 1267 wsp->walk_data = swalker; 1268 1269 return (WALK_NEXT); 1270 } 1271 } 1272 return (WALK_DONE); 1273 } 1274 1275 static int 1276 sctp_walk_saddr_step(mdb_walk_state_t *wsp) 1277 { 1278 uintptr_t saddr_ptr = wsp->walk_addr; 1279 sctp_saddr_ipif_t saddr; 1280 saddr_walk_t *swalker; 1281 sctp_t *sctp; 1282 int status; 1283 int i, j; 1284 1285 if (mdb_vread(&saddr, sizeof (sctp_saddr_ipif_t), saddr_ptr) == -1) { 1286 mdb_warn("failed to read sctp_saddr_ipif_t at %p", saddr_ptr); 1287 return (WALK_ERR); 1288 } 1289 status = wsp->walk_callback(saddr_ptr, &saddr, wsp->walk_cbdata); 1290 if (status != WALK_NEXT) 1291 return (status); 1292 1293 swalker = (saddr_walk_t *)wsp->walk_data; 1294 sctp = &swalker->sctp; 1295 i = swalker->hash_index; 1296 j = swalker->cur_cnt; 1297 1298 /* 1299 * If there is still a source address in the current list, return it. 1300 * Otherwise, go to the next list in the sctp_saddrs[]. 1301 */ 1302 if (j++ < sctp->sctp_saddrs[i].ipif_count) { 1303 wsp->walk_addr = (uintptr_t)saddr.saddr_ipif.list_next; 1304 swalker->cur_cnt = j; 1305 return (WALK_NEXT); 1306 } else { 1307 list_t *lst; 1308 1309 for (i = i + 1; i < SCTP_IPIF_HASH; i++) { 1310 if (sctp->sctp_saddrs[i].ipif_count > 0) { 1311 lst = &sctp->sctp_saddrs[i].sctp_ipif_list; 1312 wsp->walk_addr = (uintptr_t)list_object( 1313 lst, lst->list_head.list_next); 1314 swalker->hash_index = i; 1315 swalker->cur_cnt = 1; 1316 return (WALK_NEXT); 1317 } 1318 } 1319 } 1320 return (WALK_DONE); 1321 } 1322 1323 static void 1324 sctp_walk_saddr_fini(mdb_walk_state_t *wsp) 1325 { 1326 saddr_walk_t *swalker = (saddr_walk_t *)wsp->walk_data; 1327 1328 mdb_free(swalker, sizeof (saddr_walk_t)); 1329 } 1330 1331 1332 typedef struct ill_walk_data { 1333 sctp_ill_hash_t ills[SCTP_ILL_HASH]; 1334 uint32_t count; 1335 } ill_walk_data_t; 1336 1337 typedef struct ipuf_walk_data { 1338 sctp_ipif_hash_t ipifs[SCTP_IPIF_HASH]; 1339 uint32_t count; 1340 } ipif_walk_data_t; 1341 1342 1343 int 1344 sctp_ill_walk_init(mdb_walk_state_t *wsp) 1345 { 1346 if (mdb_layered_walk("sctp_stacks", wsp) == -1) { 1347 mdb_warn("can't walk 'sctp_stacks'"); 1348 return (WALK_ERR); 1349 } 1350 1351 return (WALK_NEXT); 1352 } 1353 1354 int 1355 sctp_ill_walk_step(mdb_walk_state_t *wsp) 1356 { 1357 if (mdb_pwalk("sctp_stack_walk_ill", wsp->walk_callback, 1358 wsp->walk_cbdata, wsp->walk_addr) == -1) { 1359 mdb_warn("couldn't walk 'sctp_stack_walk_ill' for addr %p", 1360 wsp->walk_addr); 1361 return (WALK_ERR); 1362 } 1363 return (WALK_NEXT); 1364 } 1365 1366 /* 1367 * wsp->walk_addr is the address of sctps_ill_list 1368 */ 1369 static int 1370 sctp_stack_ill_walk_init(mdb_walk_state_t *wsp) 1371 { 1372 ill_walk_data_t iw; 1373 intptr_t i; 1374 uintptr_t kaddr, uaddr; 1375 size_t offset; 1376 1377 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_ills_count); 1378 if (mdb_vread(&iw.count, sizeof (iw.count), kaddr) == -1) { 1379 mdb_warn("can't read sctps_ills_count at %p", kaddr); 1380 return (WALK_ERR); 1381 } 1382 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_ills); 1383 1384 if (mdb_vread(&kaddr, sizeof (kaddr), kaddr) == -1) { 1385 mdb_warn("can't read scpts_g_ills %p", kaddr); 1386 return (WALK_ERR); 1387 } 1388 if (mdb_vread(&iw.ills, sizeof (iw.ills), kaddr) == -1) { 1389 mdb_warn("failed to read 'sctps_g_ills'"); 1390 return (NULL); 1391 } 1392 1393 /* Find the first ill. */ 1394 for (i = 0; i < SCTP_ILL_HASH; i++) { 1395 if (iw.ills[i].ill_count > 0) { 1396 uaddr = (uintptr_t)&iw.ills[i].sctp_ill_list; 1397 offset = uaddr - (uintptr_t)&iw.ills; 1398 if (mdb_pwalk("list", wsp->walk_callback, 1399 wsp->walk_cbdata, kaddr+offset) == -1) { 1400 mdb_warn("couldn't walk 'list' for address %p", 1401 kaddr); 1402 return (WALK_ERR); 1403 } 1404 } 1405 } 1406 return (WALK_DONE); 1407 } 1408 1409 static int 1410 sctp_stack_ill_walk_step(mdb_walk_state_t *wsp) 1411 { 1412 return (wsp->walk_callback(wsp->walk_addr, wsp->walk_layer, 1413 wsp->walk_cbdata)); 1414 } 1415 1416 int 1417 sctp_ipif_walk_init(mdb_walk_state_t *wsp) 1418 { 1419 if (mdb_layered_walk("sctp_stacks", wsp) == -1) { 1420 mdb_warn("can't walk 'sctp_stacks'"); 1421 return (WALK_ERR); 1422 } 1423 return (WALK_NEXT); 1424 } 1425 1426 int 1427 sctp_ipif_walk_step(mdb_walk_state_t *wsp) 1428 { 1429 if (mdb_pwalk("sctp_stack_walk_ipif", wsp->walk_callback, 1430 wsp->walk_cbdata, wsp->walk_addr) == -1) { 1431 mdb_warn("couldn't walk 'sctp_stack_walk_ipif' for addr %p", 1432 wsp->walk_addr); 1433 return (WALK_ERR); 1434 } 1435 return (WALK_NEXT); 1436 } 1437 1438 /* 1439 * wsp->walk_addr is the address of sctps_ipif_list 1440 */ 1441 static int 1442 sctp_stack_ipif_walk_init(mdb_walk_state_t *wsp) 1443 { 1444 ipif_walk_data_t iw; 1445 intptr_t i; 1446 uintptr_t kaddr, uaddr; 1447 size_t offset; 1448 1449 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_ipifs_count); 1450 if (mdb_vread(&iw.count, sizeof (iw.count), kaddr) == -1) { 1451 mdb_warn("can't read sctps_g_ipifs_count at %p", kaddr); 1452 return (WALK_ERR); 1453 } 1454 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_ipifs); 1455 1456 if (mdb_vread(&kaddr, sizeof (kaddr), kaddr) == -1) { 1457 mdb_warn("can't read scpts_g_ipifs %p", kaddr); 1458 return (WALK_ERR); 1459 } 1460 if (mdb_vread(&iw.ipifs, sizeof (iw.ipifs), kaddr) == -1) { 1461 mdb_warn("failed to read 'sctps_g_ipifs'"); 1462 return (NULL); 1463 } 1464 1465 /* Find the first ipif. */ 1466 for (i = 0; i < SCTP_IPIF_HASH; i++) { 1467 if (iw.ipifs[i].ipif_count > 0) { 1468 uaddr = (uintptr_t)&iw.ipifs[i].sctp_ipif_list; 1469 offset = uaddr - (uintptr_t)&iw.ipifs; 1470 if (mdb_pwalk("list", wsp->walk_callback, 1471 wsp->walk_cbdata, kaddr+offset) == -1) { 1472 mdb_warn("couldn't walk 'list' for address %p", 1473 kaddr); 1474 return (WALK_ERR); 1475 } 1476 } 1477 } 1478 return (WALK_DONE); 1479 } 1480 1481 static int 1482 sctp_stack_ipif_walk_step(mdb_walk_state_t *wsp) 1483 { 1484 return (wsp->walk_callback(wsp->walk_addr, wsp->walk_layer, 1485 wsp->walk_cbdata)); 1486 } 1487 1488 static void 1489 sctp_help(void) 1490 { 1491 mdb_printf("Print information for a given SCTP sctp_t\n\n"); 1492 mdb_printf("Options:\n"); 1493 mdb_printf("\t-a\t All the information\n"); 1494 mdb_printf("\t-f\t Flags\n"); 1495 mdb_printf("\t-h\t Hash Tables\n"); 1496 mdb_printf("\t-o\t Outbound Data\n"); 1497 mdb_printf("\t-i\t Inbound Data\n"); 1498 mdb_printf("\t-m\t Miscellaneous Information\n"); 1499 mdb_printf("\t-r\t RTT Tracking\n"); 1500 mdb_printf("\t-S\t Stats Counters\n"); 1501 mdb_printf("\t-F\t Flow Control\n"); 1502 mdb_printf("\t-H\t Composite Headers\n"); 1503 mdb_printf("\t-p\t PMTUD\n"); 1504 mdb_printf("\t-R\t Retransmit Information\n"); 1505 mdb_printf("\t-C\t Connection State\n"); 1506 mdb_printf("\t-c\t Cleanup / Close\n"); 1507 mdb_printf("\t-e\t Extensions and Reliable Control Chunks\n"); 1508 mdb_printf("\t-d\t Local and Peer addresses\n"); 1509 mdb_printf("\t-P\t Peer addresses\n"); 1510 } 1511 static const mdb_dcmd_t dcmds[] = { 1512 { "sctp", ":[-afhoimrSFHpRCcedP]", 1513 "display sctp control structure", sctp, sctp_help }, 1514 { "sctp_set", ":", "display a SCTP set", sctp_set }, 1515 { "sctp_faddr", ":", "display a faddr", sctp_faddr }, 1516 { "sctp_istr_msgs", ":", "display msg list on an instream", 1517 sctp_istr_msgs }, 1518 { "sctp_mdata_chunk", ":", "display a data chunk in an mblk", 1519 sctp_mdata_chunk }, 1520 { "sctp_xmit_list", ":", "display sctp xmit lists", sctp_xmit_list }, 1521 { "sctp_instr", ":", "display instr", sctp_instr }, 1522 { "sctp_reass_list", ":", "display reass list", sctp_reass_list }, 1523 { "sctp_uo_reass_list", ":", "display un-ordered reass list", 1524 sctp_uo_reass_list }, 1525 { NULL } 1526 }; 1527 1528 static const fanout_init_t listen_fanout_init = { 1529 "sctp_stack_listen_fanout", OFFSETOF(sctp_stack_t, sctps_listen_fanout), 1530 listen_size, listen_next 1531 }; 1532 1533 static const fanout_init_t conn_fanout_init = { 1534 "sctp_stack_conn_fanout", OFFSETOF(sctp_stack_t, sctps_conn_fanout), 1535 conn_size, conn_next 1536 }; 1537 1538 static const fanout_init_t bind_fanout_init = { 1539 "sctp_stack_bind_fanout", OFFSETOF(sctp_stack_t, sctps_bind_fanout), 1540 bind_size, bind_next 1541 }; 1542 1543 static const mdb_walker_t walkers[] = { 1544 { "sctps", "walk the full chain of sctps for all stacks", 1545 sctps_walk_init, sctps_walk_step, NULL }, 1546 { "sctp_listen_fanout", "walk the sctp listen fanout for all stacks", 1547 fanout_walk_init, fanout_walk_step, NULL, 1548 (void *)&listen_fanout_init }, 1549 { "sctp_conn_fanout", "walk the sctp conn fanout for all stacks", 1550 fanout_walk_init, fanout_walk_step, NULL, 1551 (void *)&conn_fanout_init }, 1552 { "sctp_bind_fanout", "walk the sctp bind fanout for all stacks", 1553 fanout_walk_init, fanout_walk_step, NULL, 1554 (void *)&bind_fanout_init }, 1555 { "sctp_stack_listen_fanout", 1556 "walk the sctp listen fanout for one stack", 1557 fanout_stack_walk_init, fanout_stack_walk_step, 1558 fanout_stack_walk_fini, 1559 (void *)&listen_fanout_init }, 1560 { "sctp_stack_conn_fanout", "walk the sctp conn fanout for one stack", 1561 fanout_stack_walk_init, fanout_stack_walk_step, 1562 fanout_stack_walk_fini, 1563 (void *)&conn_fanout_init }, 1564 { "sctp_stack_bind_fanout", "walk the sctp bind fanoutfor one stack", 1565 fanout_stack_walk_init, fanout_stack_walk_step, 1566 fanout_stack_walk_fini, 1567 (void *)&bind_fanout_init }, 1568 { "sctp_walk_faddr", "walk the peer address list of a given sctp_t", 1569 sctp_walk_faddr_init, sctp_walk_faddr_step, NULL }, 1570 { "sctp_walk_saddr", "walk the local address list of a given sctp_t", 1571 sctp_walk_saddr_init, sctp_walk_saddr_step, sctp_walk_saddr_fini }, 1572 { "sctp_walk_ill", "walk the sctp_g_ills list for all stacks", 1573 sctp_ill_walk_init, sctp_ill_walk_step, NULL }, 1574 { "sctp_walk_ipif", "walk the sctp_g_ipif list for all stacks", 1575 sctp_ipif_walk_init, sctp_ipif_walk_step, NULL }, 1576 { "sctp_stack_walk_ill", "walk the sctp_g_ills list for one stack", 1577 sctp_stack_ill_walk_init, sctp_stack_ill_walk_step, NULL }, 1578 { "sctp_stack_walk_ipif", "walk the sctp_g_ipif list for one stack", 1579 sctp_stack_ipif_walk_init, sctp_stack_ipif_walk_step, NULL }, 1580 { "sctp_stacks", "walk all the sctp_stack_t", 1581 sctp_stacks_walk_init, sctp_stacks_walk_step, NULL }, 1582 { NULL } 1583 }; 1584 1585 static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, walkers }; 1586 1587 const mdb_modinfo_t * 1588 _mdb_init(void) 1589 { 1590 return (&modinfo); 1591 } 1592