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("rxt_unacked\t\t%?u\n", fa->rxt_unacked); 167 mdb_printf("timer_mp\t%?p\tire\t\t%?p\n", fa->timer_mp, fa->ire); 168 mdb_printf("hb_pending\t%?d\ttimer_running\t%?d\n" 169 "df\t\t%?d\tpmtu_discovered\t%?d\n" 170 "isv4\t\t%?d\tretransmissions\t%?u\n", 171 fa->hb_pending, fa->timer_running, fa->df, fa->pmtu_discovered, 172 fa->isv4, fa->T3expire); 173 174 return (DCMD_OK); 175 } 176 177 static void 178 print_set(sctp_set_t *sp) 179 { 180 mdb_printf("\tbegin\t%<b>%?x%</b>\t\tend\t%<b>%?x%</b>\n", 181 sp->begin, sp->end); 182 mdb_printf("\tnext\t%?p\tprev\t%?p\n", sp->next, sp->prev); 183 } 184 185 /* ARGSUSED */ 186 static int 187 sctp_set(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 188 { 189 sctp_set_t sp[1]; 190 191 if (!(flags & DCMD_ADDRSPEC)) 192 return (DCMD_USAGE); 193 194 if (mdb_vread(sp, sizeof (*sp), addr) == -1) 195 return (DCMD_ERR); 196 197 print_set(sp); 198 199 return (DCMD_OK); 200 } 201 202 static void 203 dump_sack_info(uintptr_t addr) 204 { 205 sctp_set_t sp[1]; 206 207 while (addr != 0) { 208 if (mdb_vread(sp, sizeof (*sp), addr) == -1) { 209 mdb_warn("failed to read sctp_set at %p", addr); 210 return; 211 } 212 213 addr = (uintptr_t)sp->next; 214 print_set(sp); 215 } 216 } 217 218 static int 219 dump_msghdr(mblk_t *meta) 220 { 221 sctp_msg_hdr_t smh; 222 223 if (mdb_vread(&smh, sizeof (smh), (uintptr_t)meta->b_rptr) == -1) 224 return (-1); 225 226 mdb_printf("%<u>msg_hdr_t at \t%?p\tsentto\t%?p%</u>\n", 227 meta->b_rptr, SCTP_CHUNK_DEST(meta)); 228 mdb_printf("\tttl\t%?ld\ttob\t%?ld\n", smh.smh_ttl, smh.smh_tob); 229 mdb_printf("\tsid\t%?u\tssn\t%?u\n", smh.smh_sid, smh.smh_ssn); 230 mdb_printf("\tppid\t%?u\tflags\t%?s\n", smh.smh_ppid, 231 smh.smh_flags & MSG_UNORDERED ? "unordered" : " "); 232 mdb_printf("\tcontext\t%?u\tmsglen\t%?d\n", smh.smh_context, 233 smh.smh_msglen); 234 235 return (0); 236 } 237 238 static int 239 dump_datahdr(mblk_t *mp) 240 { 241 sctp_data_hdr_t sdc; 242 uint16_t sdh_int16; 243 uint32_t sdh_int32; 244 245 if (mdb_vread(&sdc, sizeof (sdc), (uintptr_t)mp->b_rptr) == -1) 246 return (-1); 247 248 mdb_printf("%<u>data_chunk_t \t%?p\tsentto\t%?p%</u>\n", 249 mp->b_rptr, SCTP_CHUNK_DEST(mp)); 250 mdb_printf("\tsent\t%?d\t", SCTP_CHUNK_ISSENT(mp)?1:0); 251 mdb_printf("retrans\t%?d\n", SCTP_CHUNK_WANT_REXMIT(mp)?1:0); 252 mdb_printf("\tacked\t%?d\t", SCTP_CHUNK_ISACKED(mp)?1:0); 253 mdb_printf("sackcnt\t%?u\n", SCTP_CHUNK_SACKCNT(mp)); 254 255 mdb_nhconvert(&sdh_int16, &sdc.sdh_len, sizeof (sdc.sdh_len)); 256 mdb_printf("\tlen\t%?d\t", sdh_int16); 257 mdb_printf("BBIT=%d", SCTP_DATA_GET_BBIT(&sdc) == 0 ? 0 : 1); 258 mdb_printf("EBIT=%d", SCTP_DATA_GET_EBIT(&sdc) == 0 ? 0 : 1); 259 260 mdb_nhconvert(&sdh_int32, &sdc.sdh_tsn, sizeof (sdc.sdh_tsn)); 261 mdb_nhconvert(&sdh_int16, &sdc.sdh_sid, sizeof (sdc.sdh_sid)); 262 mdb_printf("\ttsn\t%?x\tsid\t%?hu\n", sdh_int32, sdh_int16); 263 264 mdb_nhconvert(&sdh_int16, &sdc.sdh_ssn, sizeof (sdc.sdh_ssn)); 265 mdb_nhconvert(&sdh_int32, &sdc.sdh_payload_id, 266 sizeof (sdc.sdh_payload_id)); 267 mdb_printf("\tssn\t%?hu\tppid\t%?d\n", sdh_int16, sdh_int32); 268 269 return (0); 270 } 271 272 static int 273 sctp_sent_list(mblk_t *addr) 274 { 275 mblk_t meta, mp; 276 277 if (!addr) 278 return (0); 279 280 if (mdb_vread(&meta, sizeof (meta), (uintptr_t)addr) == -1) 281 return (-1); 282 283 for (;;) { 284 dump_msghdr(&meta); 285 286 if (meta.b_cont == NULL) { 287 mdb_printf("No data chunks with message header!\n"); 288 return (-1); 289 } 290 if (mdb_vread(&mp, sizeof (mp), 291 (uintptr_t)meta.b_cont) == -1) { 292 return (-1); 293 } 294 for (;;) { 295 dump_datahdr(&mp); 296 if (!mp.b_next) 297 break; 298 299 if (mdb_vread(&mp, sizeof (mp), 300 (uintptr_t)(mp.b_next)) == -1) 301 return (-1); 302 } 303 if (meta.b_next == NULL) 304 break; 305 if (mdb_vread(&meta, sizeof (meta), 306 (uintptr_t)meta.b_next) == -1) 307 return (-1); 308 } 309 310 return (0); 311 } 312 313 static int 314 sctp_unsent_list(mblk_t *addr) 315 { 316 mblk_t meta; 317 318 if (!addr) 319 return (0); 320 321 if (mdb_vread(&meta, sizeof (meta), (uintptr_t)addr) == -1) 322 return (-1); 323 324 for (;;) { 325 dump_msghdr(&meta); 326 327 if (meta.b_next == NULL) 328 break; 329 330 if (mdb_vread(&meta, sizeof (meta), 331 (uintptr_t)meta.b_next) == -1) 332 return (-1); 333 } 334 335 return (0); 336 } 337 338 /* ARGSUSED */ 339 static int 340 sctp_xmit_list(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 341 { 342 sctp_t sctp; 343 344 if (!(flags & DCMD_ADDRSPEC)) 345 return (DCMD_USAGE); 346 347 if (mdb_vread(&sctp, sizeof (sctp), addr) == -1) 348 return (DCMD_ERR); 349 350 mdb_printf("%<b>Chunkified TX list%</b>\n"); 351 if (sctp_sent_list(sctp.sctp_xmit_head) < 0) 352 return (DCMD_ERR); 353 354 mdb_printf("%<b>Unchunkified TX list%</b>\n"); 355 if (sctp_unsent_list(sctp.sctp_xmit_unsent) < 0) 356 return (DCMD_ERR); 357 358 return (DCMD_OK); 359 } 360 361 /* ARGSUSED */ 362 static int 363 sctp_mdata_chunk(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 364 { 365 sctp_data_hdr_t dc; 366 mblk_t mp; 367 368 if (!(flags & DCMD_ADDRSPEC)) 369 return (DCMD_USAGE); 370 371 if (mdb_vread(&mp, sizeof (mp), addr) == -1) 372 return (DCMD_ERR); 373 374 if (mdb_vread(&dc, sizeof (dc), (uintptr_t)mp.b_rptr) == -1) 375 return (DCMD_ERR); 376 377 mdb_printf("%<b>%-?p%</b>tsn\t%?x\tsid\t%?hu\n", addr, 378 dc.sdh_tsn, dc.sdh_sid); 379 mdb_printf("%-?sssn\t%?hu\tppid\t%?x\n", "", dc.sdh_ssn, 380 dc.sdh_payload_id); 381 382 return (DCMD_OK); 383 } 384 385 /* ARGSUSED */ 386 static int 387 sctp_istr_msgs(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 388 { 389 mblk_t istrmp; 390 mblk_t dmp; 391 sctp_data_hdr_t dp; 392 uintptr_t daddr; 393 uintptr_t chaddr; 394 boolean_t bbit; 395 boolean_t ebit; 396 397 if (!(flags & DCMD_ADDRSPEC)) 398 return (DCMD_USAGE); 399 400 do { 401 if (mdb_vread(&istrmp, sizeof (istrmp), addr) == -1) 402 return (DCMD_ERR); 403 404 mdb_printf("\tistr mblk at %p: next: %?p\n" 405 "\t\tprev: %?p\tcont: %?p\n", addr, istrmp.b_next, 406 istrmp.b_prev, istrmp.b_cont); 407 daddr = (uintptr_t)&istrmp; 408 do { 409 if (mdb_vread(&dmp, sizeof (dmp), daddr) == -1) 410 break; 411 chaddr = (uintptr_t)dmp.b_rptr; 412 if (mdb_vread(&dp, sizeof (dp), chaddr) == -1) 413 break; 414 415 bbit = (SCTP_DATA_GET_BBIT(&dp) != 0); 416 ebit = (SCTP_DATA_GET_EBIT(&dp) != 0); 417 418 mdb_printf("\t\t\ttsn: %x bbit: %d ebit: %d\n", 419 dp.sdh_tsn, bbit, ebit); 420 421 422 daddr = (uintptr_t)dmp.b_cont; 423 } while (daddr != NULL); 424 425 addr = (uintptr_t)istrmp.b_next; 426 } while (addr != NULL); 427 428 return (DCMD_OK); 429 } 430 431 /* ARGSUSED */ 432 static int 433 sctp_reass_list(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 434 { 435 sctp_reass_t srp; 436 mblk_t srpmp; 437 sctp_data_hdr_t dp; 438 mblk_t dmp; 439 uintptr_t daddr; 440 uintptr_t chaddr; 441 boolean_t bbit, ebit; 442 443 if (!(flags & DCMD_ADDRSPEC)) 444 return (DCMD_USAGE); 445 446 do { 447 if (mdb_vread(&srpmp, sizeof (srpmp), addr) == -1) 448 return (DCMD_ERR); 449 450 if (mdb_vread(&srp, sizeof (srp), 451 (uintptr_t)srpmp.b_datap->db_base) == -1) 452 return (DCMD_ERR); 453 454 mdb_printf("\treassembly mblk at %p: next: %?p\n" 455 "\t\tprev: %?p\tcont: %?p\n", addr, srpmp.b_next, 456 srpmp.b_prev, srpmp.b_cont); 457 mdb_printf("\t\tssn: %hu\tneeded: %hu\tgot: %hu\ttail: %?p\n" 458 "\t\tpartial_delivered: %s\n", srp.ssn, srp.needed, 459 srp.got, srp.tail, srp.partial_delivered ? "TRUE" : 460 "FALSE"); 461 462 /* display the contents of this ssn's reassemby list */ 463 daddr = DB_TYPE(&srpmp) == M_CTL ? (uintptr_t)srpmp.b_cont : 464 (uintptr_t)&srpmp; 465 do { 466 if (mdb_vread(&dmp, sizeof (dmp), daddr) == -1) 467 break; 468 chaddr = (uintptr_t)dmp.b_rptr; 469 if (mdb_vread(&dp, sizeof (dp), chaddr) == -1) 470 break; 471 472 bbit = (SCTP_DATA_GET_BBIT(&dp) != 0); 473 ebit = (SCTP_DATA_GET_EBIT(&dp) != 0); 474 475 mdb_printf("\t\t\ttsn: %x bbit: %d ebit: %d\n", 476 dp.sdh_tsn, bbit, ebit); 477 478 daddr = (uintptr_t)dmp.b_cont; 479 } while (daddr != NULL); 480 481 addr = (uintptr_t)srpmp.b_next; 482 } while (addr != NULL); 483 484 return (DCMD_OK); 485 } 486 487 /* ARGSUSED */ 488 static int 489 sctp_uo_reass_list(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 490 { 491 sctp_data_hdr_t dp; 492 mblk_t dmp; 493 uintptr_t chaddr; 494 boolean_t bbit; 495 boolean_t ebit; 496 boolean_t ubit; 497 498 if (!(flags & DCMD_ADDRSPEC)) 499 return (DCMD_USAGE); 500 501 do { 502 if (mdb_vread(&dmp, sizeof (dmp), addr) == -1) 503 return (DCMD_ERR); 504 505 mdb_printf("\treassembly mblk at %p: next: %?p\n" 506 "\t\tprev: %?p\n", addr, dmp.b_next, dmp.b_prev); 507 508 chaddr = (uintptr_t)dmp.b_rptr; 509 if (mdb_vread(&dp, sizeof (dp), chaddr) == -1) 510 break; 511 512 bbit = (SCTP_DATA_GET_BBIT(&dp) != 0); 513 ebit = (SCTP_DATA_GET_EBIT(&dp) != 0); 514 ubit = (SCTP_DATA_GET_UBIT(&dp) != 0); 515 516 mdb_printf("\t\t\tsid: %hu ssn: %hu tsn: %x " 517 "flags: %x (U=%d B=%d E=%d)\n", dp.sdh_sid, dp.sdh_ssn, 518 dp.sdh_tsn, dp.sdh_flags, ubit, bbit, ebit); 519 520 addr = (uintptr_t)dmp.b_next; 521 } while (addr != NULL); 522 523 return (DCMD_OK); 524 } 525 526 static int 527 sctp_instr(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av) 528 { 529 sctp_instr_t sip; 530 531 if (!(flags & DCMD_ADDRSPEC)) 532 return (DCMD_USAGE); 533 534 if (mdb_vread(&sip, sizeof (sip), addr) == -1) 535 return (DCMD_ERR); 536 537 mdb_printf("%<b>%-?p%</b>\n\tmsglist\t%?p\tnmsgs\t%?d\n" 538 "\tnextseq\t%?d\treass\t%?p\n", addr, sip.istr_msgs, 539 sip.istr_nmsgs, sip.nextseq, sip.istr_reass); 540 mdb_set_dot(addr + sizeof (sip)); 541 542 return (sctp_reass_list((uintptr_t)sip.istr_reass, flags, ac, av)); 543 } 544 545 static const char * 546 state2str(sctp_t *sctp) 547 { 548 switch (sctp->sctp_state) { 549 case SCTPS_IDLE: return ("SCTPS_IDLE"); 550 case SCTPS_BOUND: return ("SCTPS_BOUND"); 551 case SCTPS_LISTEN: return ("SCTPS_LISTEN"); 552 case SCTPS_COOKIE_WAIT: return ("SCTPS_COOKIE_WAIT"); 553 case SCTPS_COOKIE_ECHOED: return ("SCTPS_COOKIE_ECHOED"); 554 case SCTPS_ESTABLISHED: return ("SCTPS_ESTABLISHED"); 555 case SCTPS_SHUTDOWN_PENDING: return ("SCTPS_SHUTDOWN_PENDING"); 556 case SCTPS_SHUTDOWN_SENT: return ("SCTPS_SHUTDOWN_SENT"); 557 case SCTPS_SHUTDOWN_RECEIVED: return ("SCTPS_SHUTDOWN_RECEIVED"); 558 case SCTPS_SHUTDOWN_ACK_SENT: return ("SCTPS_SHUTDOWN_ACK_SENT"); 559 default: return ("UNKNOWN STATE"); 560 } 561 } 562 563 static void 564 show_sctp_flags(sctp_t *sctp) 565 { 566 mdb_printf("\tunderstands_asconf\t%d\n", 567 sctp->sctp_understands_asconf); 568 mdb_printf("\tdebug\t\t\t%d\n", sctp->sctp_debug); 569 mdb_printf("\tcchunk_pend\t\t%d\n", sctp->sctp_cchunk_pend); 570 mdb_printf("\tdgram_errind\t\t%d\n", sctp->sctp_dgram_errind); 571 572 mdb_printf("\tlinger\t\t\t%d\n", sctp->sctp_linger); 573 if (sctp->sctp_lingering) 574 return; 575 mdb_printf("\tlingering\t\t%d\n", sctp->sctp_lingering); 576 mdb_printf("\tloopback\t\t%d\n", sctp->sctp_loopback); 577 mdb_printf("\tforce_sack\t\t%d\n", sctp->sctp_force_sack); 578 579 mdb_printf("\tack_timer_runing\t%d\n", sctp->sctp_ack_timer_running); 580 mdb_printf("\trecvdstaddr\t\t%d\n", sctp->sctp_recvdstaddr); 581 mdb_printf("\thwcksum\t\t\t%d\n", sctp->sctp_hwcksum); 582 mdb_printf("\tunderstands_addip\t%d\n", sctp->sctp_understands_addip); 583 584 mdb_printf("\tbound_to_all\t\t%d\n", sctp->sctp_bound_to_all); 585 mdb_printf("\tcansleep\t\t%d\n", sctp->sctp_cansleep); 586 mdb_printf("\tdetached\t\t%d\n", sctp->sctp_detached); 587 mdb_printf("\tsend_adaption\t\t%d\n", sctp->sctp_send_adaption); 588 589 mdb_printf("\trecv_adaption\t\t%d\n", sctp->sctp_recv_adaption); 590 mdb_printf("\tndelay\t\t\t%d\n", sctp->sctp_ndelay); 591 mdb_printf("\tcondemned\t\t%d\n", sctp->sctp_condemned); 592 mdb_printf("\tchk_fast_rexmit\t\t%d\n", sctp->sctp_chk_fast_rexmit); 593 594 mdb_printf("\tprsctp_aware\t\t%d\n", sctp->sctp_prsctp_aware); 595 mdb_printf("\tlinklocal\t\t%d\n", sctp->sctp_linklocal); 596 mdb_printf("\trexmitting\t\t%d\n", sctp->sctp_rexmitting); 597 mdb_printf("\tzero_win_probe\t\t%d\n", sctp->sctp_zero_win_probe); 598 599 mdb_printf("\trecvsndrcvinfo\t\t%d\n", sctp->sctp_recvsndrcvinfo); 600 mdb_printf("\trecvassocevnt\t\t%d\n", sctp->sctp_recvassocevnt); 601 mdb_printf("\trecvpathevnt\t\t%d\n", sctp->sctp_recvpathevnt); 602 mdb_printf("\trecvsendfailevnt\t%d\n", sctp->sctp_recvsendfailevnt); 603 604 mdb_printf("\trecvpeerevnt\t\t%d\n", sctp->sctp_recvpeererr); 605 mdb_printf("\trecvchutdownevnt\t%d\n", sctp->sctp_recvshutdownevnt); 606 mdb_printf("\trecvcpdnevnt\t\t%d\n", sctp->sctp_recvpdevnt); 607 mdb_printf("\trecvcalevnt\t\t%d\n\n", sctp->sctp_recvalevnt); 608 } 609 610 /* 611 * Given a sctp_saddr_ipif_t, print out its address. This assumes 612 * that addr contains the sctp_addr_ipif_t structure already and this 613 * function does not need to read it in. 614 */ 615 /* ARGSUSED */ 616 static int 617 print_saddr(uintptr_t ptr, const void *addr, void *cbdata) 618 { 619 sctp_saddr_ipif_t *saddr = (sctp_saddr_ipif_t *)addr; 620 sctp_ipif_t ipif; 621 char *statestr; 622 623 /* Read in the sctp_ipif object */ 624 if (mdb_vread(&ipif, sizeof (ipif), (uintptr_t)saddr->saddr_ipifp) == 625 -1) { 626 mdb_warn("cannot read ipif at %p", saddr->saddr_ipifp); 627 return (WALK_ERR); 628 } 629 630 switch (ipif.sctp_ipif_state) { 631 case SCTP_IPIFS_CONDEMNED: 632 statestr = "Condemned"; 633 break; 634 case SCTP_IPIFS_INVALID: 635 statestr = "Invalid"; 636 break; 637 case SCTP_IPIFS_DOWN: 638 statestr = "Down"; 639 break; 640 case SCTP_IPIFS_UP: 641 statestr = "Up"; 642 break; 643 default: 644 statestr = "Unknown"; 645 break; 646 } 647 mdb_printf("\t%p\t%N% (%s", saddr->saddr_ipifp, &ipif.sctp_ipif_saddr, 648 statestr); 649 if (saddr->saddr_ipif_dontsrc == 1) 650 mdb_printf("/Dontsrc"); 651 if (saddr->saddr_ipif_unconfirmed == 1) 652 mdb_printf("/Unconfirmed"); 653 if (saddr->saddr_ipif_delete_pending == 1) 654 mdb_printf("/DeletePending"); 655 mdb_printf(")\n"); 656 mdb_printf("\t\t\tMTU %d id %d zoneid %d IPIF flags %x\n", 657 ipif.sctp_ipif_mtu, ipif.sctp_ipif_id, 658 ipif.sctp_ipif_zoneid, ipif.sctp_ipif_flags); 659 return (WALK_NEXT); 660 } 661 662 /* 663 * Given a sctp_faddr_t, print out its address. This assumes that 664 * addr contains the sctp_faddr_t structure already and this function 665 * does not need to read it in. 666 */ 667 static int 668 print_faddr(uintptr_t ptr, const void *addr, void *cbdata) 669 { 670 char *statestr; 671 sctp_faddr_t *faddr = (sctp_faddr_t *)addr; 672 int *i = cbdata; 673 674 statestr = sctp_faddr_state(faddr->state); 675 676 mdb_printf("\t%d:\t%N\t%?p (%s)\n", (*i)++, &faddr->faddr, ptr, 677 statestr); 678 return (WALK_NEXT); 679 } 680 681 int 682 sctp(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 683 { 684 sctp_t sctp; 685 conn_t connp; 686 int i; 687 uint_t opts = 0; 688 uint_t paddr = 0; 689 in_port_t lport, fport; 690 691 if (!(flags & DCMD_ADDRSPEC)) 692 return (DCMD_USAGE); 693 694 if (mdb_vread(&sctp, sizeof (sctp), addr) == -1) { 695 mdb_warn("failed to read sctp_t at: %p\n", addr); 696 return (DCMD_ERR); 697 } 698 if (mdb_vread(&connp, sizeof (connp), 699 (uintptr_t)sctp.sctp_connp) == -1) { 700 mdb_warn("failed to read conn_t at: %p\n", sctp.sctp_connp); 701 return (DCMD_ERR); 702 } 703 704 if (mdb_getopts(argc, argv, 705 'a', MDB_OPT_SETBITS, MDB_SCTP_SHOW_ALL, &opts, 706 'f', MDB_OPT_SETBITS, MDB_SCTP_SHOW_FLAGS, &opts, 707 'h', MDB_OPT_SETBITS, MDB_SCTP_SHOW_HASH, &opts, 708 'o', MDB_OPT_SETBITS, MDB_SCTP_SHOW_OUT, &opts, 709 'i', MDB_OPT_SETBITS, MDB_SCTP_SHOW_IN, &opts, 710 'm', MDB_OPT_SETBITS, MDB_SCTP_SHOW_MISC, &opts, 711 'r', MDB_OPT_SETBITS, MDB_SCTP_SHOW_RTT, &opts, 712 'S', MDB_OPT_SETBITS, MDB_SCTP_SHOW_STATS, &opts, 713 'F', MDB_OPT_SETBITS, MDB_SCTP_SHOW_FLOW, &opts, 714 'H', MDB_OPT_SETBITS, MDB_SCTP_SHOW_HDR, &opts, 715 'p', MDB_OPT_SETBITS, MDB_SCTP_SHOW_PMTUD, &opts, 716 'R', MDB_OPT_SETBITS, MDB_SCTP_SHOW_RXT, &opts, 717 'C', MDB_OPT_SETBITS, MDB_SCTP_SHOW_CONN, &opts, 718 'c', MDB_OPT_SETBITS, MDB_SCTP_SHOW_CLOSE, &opts, 719 'e', MDB_OPT_SETBITS, MDB_SCTP_SHOW_EXT, &opts, 720 'P', MDB_OPT_SETBITS, 1, &paddr, 721 'd', MDB_OPT_SETBITS, MDB_SCTP_DUMP_ADDRS, &opts) != argc) { 722 return (DCMD_USAGE); 723 } 724 725 /* non-verbose faddrs, suitable for pipelines to sctp_faddr */ 726 if (paddr != 0) { 727 sctp_faddr_t faddr, *fp; 728 for (fp = sctp.sctp_faddrs; fp != NULL; fp = faddr.next) { 729 if (mdb_vread(&faddr, sizeof (faddr), (uintptr_t)fp) 730 == -1) { 731 mdb_warn("failed to read faddr at %p", 732 fp); 733 return (DCMD_ERR); 734 } 735 mdb_printf("%p\n", fp); 736 } 737 return (DCMD_OK); 738 } 739 740 mdb_nhconvert(&lport, &sctp.sctp_lport, sizeof (lport)); 741 mdb_nhconvert(&fport, &sctp.sctp_fport, sizeof (fport)); 742 mdb_printf("%<u>%p% %22s S=%-6hu D=%-6hu% STACK=%d ZONE=%d%</u>", addr, 743 state2str(&sctp), lport, fport, 744 ns_to_stackid((uintptr_t)connp.conn_netstack), connp.conn_zoneid); 745 746 if (sctp.sctp_faddrs) { 747 sctp_faddr_t faddr; 748 if (mdb_vread(&faddr, sizeof (faddr), 749 (uintptr_t)sctp.sctp_faddrs) != -1) 750 mdb_printf("%<u> %N%</u>", &faddr.faddr); 751 } 752 mdb_printf("\n"); 753 754 if (opts & MDB_SCTP_DUMP_ADDRS) { 755 mdb_printf("%<b>Local and Peer Addresses%</b>\n"); 756 757 /* Display source addresses */ 758 mdb_printf("nsaddrs\t\t%?d\n", sctp.sctp_nsaddrs); 759 (void) mdb_pwalk("sctp_walk_saddr", print_saddr, NULL, addr); 760 761 /* Display peer addresses */ 762 mdb_printf("nfaddrs\t\t%?d\n", sctp.sctp_nfaddrs); 763 i = 1; 764 (void) mdb_pwalk("sctp_walk_faddr", print_faddr, &i, addr); 765 766 mdb_printf("lastfaddr\t%?p\tprimary\t\t%?p\n", 767 sctp.sctp_lastfaddr, sctp.sctp_primary); 768 mdb_printf("current\t\t%?p\tlastdata\t%?p\n", 769 sctp.sctp_current, sctp.sctp_lastdata); 770 } 771 772 if (opts & MDB_SCTP_SHOW_OUT) { 773 mdb_printf("%<b>Outbound Data%</b>\n"); 774 mdb_printf("xmit_head\t%?p\txmit_tail\t%?p\n", 775 sctp.sctp_xmit_head, sctp.sctp_xmit_tail); 776 mdb_printf("xmit_unsent\t%?p\txmit_unsent_tail%?p\n", 777 sctp.sctp_xmit_unsent, sctp.sctp_xmit_unsent_tail); 778 mdb_printf("xmit_unacked\t%?p\n", sctp.sctp_xmit_unacked); 779 mdb_printf("unacked\t\t%?u\tunsent\t\t%?ld\n", 780 sctp.sctp_unacked, sctp.sctp_unsent); 781 mdb_printf("ltsn\t\t%?x\tlastack_rxd\t%?x\n", 782 sctp.sctp_ltsn, sctp.sctp_lastack_rxd); 783 mdb_printf("recovery_tsn\t%?x\tadv_pap\t\t%?x\n", 784 sctp.sctp_recovery_tsn, sctp.sctp_adv_pap); 785 mdb_printf("num_ostr\t%?hu\tostrcntrs\t%?p\n", 786 sctp.sctp_num_ostr, sctp.sctp_ostrcntrs); 787 788 mdb_printf("%<b>Default Send Parameters%</b>\n"); 789 mdb_printf("def_stream\t%?u\tdef_flags\t%?x\n", 790 sctp.sctp_def_stream, sctp.sctp_def_flags); 791 mdb_printf("def_ppid\t%?x\tdef_context\t%?x\n", 792 sctp.sctp_def_ppid, sctp.sctp_def_context); 793 mdb_printf("def_timetolive\t%?u\n", 794 sctp.sctp_def_timetolive); 795 } 796 797 if (opts & MDB_SCTP_SHOW_IN) { 798 mdb_printf("%<b>Inbound Data%</b>\n"); 799 mdb_printf("sack_info\t%?p\tsack_gaps\t%?d\n", 800 sctp.sctp_sack_info, sctp.sctp_sack_gaps); 801 dump_sack_info((uintptr_t)sctp.sctp_sack_info); 802 mdb_printf("ftsn\t\t%?x\tlastacked\t%?x\n", 803 sctp.sctp_ftsn, sctp.sctp_lastacked); 804 mdb_printf("istr_nmsgs\t%?d\tsack_toggle\t%?d\n", 805 sctp.sctp_istr_nmsgs, sctp.sctp_sack_toggle); 806 mdb_printf("ack_mp\t\t%?p\n", sctp.sctp_ack_mp); 807 mdb_printf("num_istr\t%?hu\tinstr\t\t%?p\n", 808 sctp.sctp_num_istr, sctp.sctp_instr); 809 mdb_printf("unord_reass\t%?p\n", sctp.sctp_uo_frags); 810 } 811 812 if (opts & MDB_SCTP_SHOW_RTT) { 813 mdb_printf("%<b>RTT Tracking%</b>\n"); 814 mdb_printf("rtt_tsn\t\t%?x\tout_time\t%?ld\n", 815 sctp.sctp_rtt_tsn, sctp.sctp_out_time); 816 } 817 818 if (opts & MDB_SCTP_SHOW_FLOW) { 819 mdb_printf("%<b>Flow Control%</b>\n"); 820 mdb_printf("txmit_hiwater\t%?d\n" 821 "xmit_lowater\t%?d\tfrwnd\t\t%?u\n" 822 "rwnd\t\t%?u\tinitial rwnd\t%?u\n" 823 "rxqueued\t%?u\tcwnd_max\t%?u\n", sctp.sctp_xmit_hiwater, 824 sctp.sctp_xmit_lowater, sctp.sctp_frwnd, 825 sctp.sctp_rwnd, sctp.sctp_irwnd, sctp.sctp_rxqueued, 826 sctp.sctp_cwnd_max); 827 } 828 829 if (opts & MDB_SCTP_SHOW_HDR) { 830 mdb_printf("%<b>Composite Headers%</b>\n"); 831 mdb_printf("iphc\t\t%?p\tiphc6\t\t%?p\n" 832 "iphc_len\t%?d\tiphc6_len\t%?d\n" 833 "hdr_len\t\t%?d\thdr6_len\t%?d\n" 834 "ipha\t\t%?p\tip6h\t\t%?p\n" 835 "ip_hdr_len\t%?d\tip_hdr6_len\t%?d\n" 836 "sctph\t\t%?p\tsctph6\t\t%?p\n" 837 "lvtag\t\t%?x\tfvtag\t\t%?x\n", sctp.sctp_iphc, 838 sctp.sctp_iphc6, sctp.sctp_iphc_len, 839 sctp.sctp_iphc6_len, sctp.sctp_hdr_len, 840 sctp.sctp_hdr6_len, sctp.sctp_ipha, sctp.sctp_ip6h, 841 sctp.sctp_ip_hdr_len, sctp.sctp_ip_hdr6_len, 842 sctp.sctp_sctph, sctp.sctp_sctph6, sctp.sctp_lvtag, 843 sctp.sctp_fvtag); 844 } 845 846 if (opts & MDB_SCTP_SHOW_PMTUD) { 847 mdb_printf("%<b>PMTUd%</b>\n"); 848 mdb_printf("last_mtu_probe\t%?ld\tmtu_probe_intvl\t%?ld\n" 849 "mss\t\t%?u\n", 850 sctp.sctp_last_mtu_probe, sctp.sctp_mtu_probe_intvl, 851 sctp.sctp_mss); 852 } 853 854 if (opts & MDB_SCTP_SHOW_RXT) { 855 mdb_printf("%<b>Retransmit Info%</b>\n"); 856 mdb_printf("cookie_mp\t%?p\tstrikes\t\t%?d\n" 857 "max_init_rxt\t%?d\tpa_max_rxt\t%?d\n" 858 "pp_max_rxt\t%?d\trto_max\t\t%?u\n" 859 "rto_min\t\t%?u\trto_initial\t%?u\n" 860 "init_rto_max\t%?u\n" 861 "rxt_nxttsn\t%?u\trxt_maxtsn\t%?u\n", sctp.sctp_cookie_mp, 862 sctp.sctp_strikes, sctp.sctp_max_init_rxt, 863 sctp.sctp_pa_max_rxt, sctp.sctp_pp_max_rxt, 864 sctp.sctp_rto_max, sctp.sctp_rto_min, 865 sctp.sctp_rto_initial, sctp.sctp_init_rto_max, 866 sctp.sctp_rxt_nxttsn, sctp.sctp_rxt_maxtsn); 867 } 868 869 if (opts & MDB_SCTP_SHOW_CONN) { 870 mdb_printf("%<b>Connection State%</b>\n"); 871 mdb_printf("last_secret_update%?ld\n", 872 sctp.sctp_last_secret_update); 873 874 mdb_printf("secret\t\t"); 875 for (i = 0; i < SCTP_SECRET_LEN; i++) { 876 if (i % 2 == 0) 877 mdb_printf("0x%02x", sctp.sctp_secret[i]); 878 else 879 mdb_printf("%02x ", sctp.sctp_secret[i]); 880 } 881 mdb_printf("\n"); 882 mdb_printf("old_secret\t"); 883 for (i = 0; i < SCTP_SECRET_LEN; i++) { 884 if (i % 2 == 0) 885 mdb_printf("0x%02x", sctp.sctp_old_secret[i]); 886 else 887 mdb_printf("%02x ", sctp.sctp_old_secret[i]); 888 } 889 mdb_printf("\n"); 890 } 891 892 if (opts & MDB_SCTP_SHOW_STATS) { 893 mdb_printf("%<b>Stats Counters%</b>\n"); 894 mdb_printf("opkts\t\t%?llu\tobchunks\t%?llu\n" 895 "odchunks\t%?llu\toudchunks\t%?llu\n" 896 "rxtchunks\t%?llu\tT1expire\t%?lu\n" 897 "T2expire\t%?lu\tT3expire\t%?lu\n" 898 "msgcount\t%?llu\tprsctpdrop\t%?llu\n" 899 "AssocStartTime\t%?lu\n", 900 sctp.sctp_opkts, sctp.sctp_obchunks, 901 sctp.sctp_odchunks, sctp.sctp_oudchunks, 902 sctp.sctp_rxtchunks, sctp.sctp_T1expire, 903 sctp.sctp_T2expire, sctp.sctp_T3expire, 904 sctp.sctp_msgcount, sctp.sctp_prsctpdrop, 905 sctp.sctp_assoc_start_time); 906 mdb_printf("ipkts\t\t%?llu\tibchunks\t%?llu\n" 907 "idchunks\t%?llu\tiudchunks\t%?llu\n" 908 "fragdmsgs\t%?llu\treassmsgs\t%?llu\n", 909 sctp.sctp_ipkts, sctp.sctp_ibchunks, 910 sctp.sctp_idchunks, sctp.sctp_iudchunks, 911 sctp.sctp_fragdmsgs, sctp.sctp_reassmsgs); 912 } 913 914 if (opts & MDB_SCTP_SHOW_HASH) { 915 mdb_printf("%<b>Hash Tables%</b>\n"); 916 mdb_printf("conn_hash_next\t%?p\t", sctp.sctp_conn_hash_next); 917 mdb_printf("conn_hash_prev\t%?p\n", sctp.sctp_conn_hash_prev); 918 919 mdb_printf("listen_hash_next%?p\t", 920 sctp.sctp_listen_hash_next); 921 mdb_printf("listen_hash_prev%?p\n", 922 sctp.sctp_listen_hash_prev); 923 mdb_nhconvert(&lport, &sctp.sctp_lport, sizeof (lport)); 924 mdb_printf("[ listen_hash bucket\t%?d ]\n", 925 SCTP_LISTEN_HASH(lport)); 926 927 mdb_printf("conn_tfp\t%?p\t", sctp.sctp_conn_tfp); 928 mdb_printf("listen_tfp\t%?p\n", sctp.sctp_listen_tfp); 929 930 mdb_printf("bind_hash\t%?p\tptpbhn\t\t%?p\n", 931 sctp.sctp_bind_hash, sctp.sctp_ptpbhn); 932 mdb_printf("bind_lockp\t%?p\n", 933 sctp.sctp_bind_lockp); 934 mdb_printf("[ bind_hash bucket\t%?d ]\n", 935 SCTP_BIND_HASH(lport)); 936 } 937 938 if (opts & MDB_SCTP_SHOW_CLOSE) { 939 mdb_printf("%<b>Cleanup / Close%</b>\n"); 940 mdb_printf("shutdown_faddr\t%?p\tclient_errno\t%?d\n" 941 "lingertime\t%?d\trefcnt\t\t%?hu\n", 942 sctp.sctp_shutdown_faddr, sctp.sctp_client_errno, 943 sctp.sctp_lingertime, sctp.sctp_refcnt); 944 } 945 946 if (opts & MDB_SCTP_SHOW_MISC) { 947 mdb_printf("%<b>Miscellaneous%</b>\n"); 948 mdb_printf("bound_if\t%?u\theartbeat_mp\t%?p\n" 949 "family\t\t%?u\tipversion\t%?hu\n" 950 "hb_interval\t%?u\tautoclose\t%?d\n" 951 "active\t\t%?ld\ttx_adaption_code%?x\n" 952 "rx_adaption_code%?x\ttimer_mp\t%?p\n" 953 "partial_delivery_point\t%?d\n", 954 sctp.sctp_bound_if, sctp.sctp_heartbeat_mp, 955 sctp.sctp_family, sctp.sctp_ipversion, 956 sctp.sctp_hb_interval, sctp.sctp_autoclose, 957 sctp.sctp_active, sctp.sctp_tx_adaption_code, 958 sctp.sctp_rx_adaption_code, sctp.sctp_timer_mp, 959 sctp.sctp_pd_point); 960 } 961 962 if (opts & MDB_SCTP_SHOW_EXT) { 963 mdb_printf("%<b>Extensions and Reliable Ctl Chunks%</b>\n"); 964 mdb_printf("cxmit_list\t%?p\tlcsn\t\t%?x\n" 965 "fcsn\t\t%?x\n", sctp.sctp_cxmit_list, sctp.sctp_lcsn, 966 sctp.sctp_fcsn); 967 } 968 969 if (opts & MDB_SCTP_SHOW_FLAGS) { 970 mdb_printf("%<b>Flags%</b>\n"); 971 show_sctp_flags(&sctp); 972 } 973 974 return (DCMD_OK); 975 } 976 977 typedef struct fanout_walk_data { 978 int index; 979 int size; 980 uintptr_t sctp; 981 sctp_tf_t *fanout; 982 uintptr_t (*getnext)(sctp_t *); 983 } fanout_walk_data_t; 984 985 typedef struct fanout_init { 986 const char *nested_walker_name; 987 size_t offset; /* for what used to be a symbol */ 988 int (*getsize)(sctp_stack_t *); 989 uintptr_t (*getnext)(sctp_t *); 990 } fanout_init_t; 991 992 static uintptr_t 993 listen_next(sctp_t *sctp) 994 { 995 return ((uintptr_t)sctp->sctp_listen_hash_next); 996 } 997 998 /* ARGSUSED */ 999 static int 1000 listen_size(sctp_stack_t *sctps) 1001 { 1002 return (SCTP_LISTEN_FANOUT_SIZE); 1003 } 1004 1005 static uintptr_t 1006 conn_next(sctp_t *sctp) 1007 { 1008 return ((uintptr_t)sctp->sctp_conn_hash_next); 1009 } 1010 1011 static int 1012 conn_size(sctp_stack_t *sctps) 1013 { 1014 int size; 1015 uintptr_t kaddr; 1016 1017 kaddr = (uintptr_t)&sctps->sctps_conn_hash_size; 1018 1019 if (mdb_vread(&size, sizeof (size), kaddr) == -1) { 1020 mdb_warn("can't read 'sctps_conn_hash_size' at %p", kaddr); 1021 return (1); 1022 } 1023 return (size); 1024 } 1025 1026 static uintptr_t 1027 bind_next(sctp_t *sctp) 1028 { 1029 return ((uintptr_t)sctp->sctp_bind_hash); 1030 } 1031 1032 /* ARGSUSED */ 1033 static int 1034 bind_size(sctp_stack_t *sctps) 1035 { 1036 return (SCTP_BIND_FANOUT_SIZE); 1037 } 1038 1039 static intptr_t 1040 find_next_hash_item(fanout_walk_data_t *fw) 1041 { 1042 sctp_tf_t tf; 1043 sctp_t sctp; 1044 1045 /* first try to continue down the hash chain */ 1046 if (fw->sctp != NULL) { 1047 /* try to get next in hash chain */ 1048 if (mdb_vread(&sctp, sizeof (sctp), fw->sctp) == -1) { 1049 mdb_warn("failed to read sctp at %p", fw->sctp); 1050 return (NULL); 1051 } 1052 fw->sctp = fw->getnext(&sctp); 1053 if (fw->sctp != NULL) 1054 return (fw->sctp); 1055 else 1056 /* end of chain; go to next bucket */ 1057 fw->index++; 1058 } 1059 1060 /* find a new hash chain, traversing the buckets */ 1061 for (; fw->index < fw->size; fw->index++) { 1062 /* read the current hash line for an sctp */ 1063 if (mdb_vread(&tf, sizeof (tf), 1064 (uintptr_t)(fw->fanout + fw->index)) == -1) { 1065 mdb_warn("failed to read tf at %p", 1066 fw->fanout + fw->index); 1067 return (NULL); 1068 } 1069 if (tf.tf_sctp != NULL) { 1070 /* start of a new chain */ 1071 fw->sctp = (uintptr_t)tf.tf_sctp; 1072 return (fw->sctp); 1073 } 1074 } 1075 return (NULL); 1076 } 1077 1078 static int 1079 fanout_stack_walk_init(mdb_walk_state_t *wsp) 1080 { 1081 fanout_walk_data_t *lw; 1082 fanout_init_t *fi = wsp->walk_arg; 1083 sctp_stack_t *sctps = (sctp_stack_t *)wsp->walk_addr; 1084 uintptr_t kaddr; 1085 1086 if (mdb_vread(&kaddr, sizeof (kaddr), 1087 wsp->walk_addr + fi->offset) == -1) { 1088 mdb_warn("can't read sctp fanout at %p", 1089 wsp->walk_addr + fi->offset); 1090 return (WALK_ERR); 1091 } 1092 1093 lw = mdb_alloc(sizeof (*lw), UM_SLEEP); 1094 lw->index = 0; 1095 lw->size = fi->getsize(sctps); 1096 lw->sctp = NULL; 1097 lw->fanout = (sctp_tf_t *)kaddr; 1098 lw->getnext = fi->getnext; 1099 1100 if ((wsp->walk_addr = find_next_hash_item(lw)) == NULL) { 1101 return (WALK_DONE); 1102 } 1103 wsp->walk_data = lw; 1104 return (WALK_NEXT); 1105 } 1106 1107 static int 1108 fanout_stack_walk_step(mdb_walk_state_t *wsp) 1109 { 1110 fanout_walk_data_t *fw = wsp->walk_data; 1111 uintptr_t addr = wsp->walk_addr; 1112 sctp_t sctp; 1113 int status; 1114 1115 if (mdb_vread(&sctp, sizeof (sctp), addr) == -1) { 1116 mdb_warn("failed to read sctp at %p", addr); 1117 return (WALK_DONE); 1118 } 1119 1120 status = wsp->walk_callback(addr, &sctp, wsp->walk_cbdata); 1121 if (status != WALK_NEXT) 1122 return (status); 1123 1124 if ((wsp->walk_addr = find_next_hash_item(fw)) == NULL) 1125 return (WALK_DONE); 1126 1127 return (WALK_NEXT); 1128 } 1129 1130 static void 1131 fanout_stack_walk_fini(mdb_walk_state_t *wsp) 1132 { 1133 fanout_walk_data_t *fw = wsp->walk_data; 1134 1135 mdb_free(fw, sizeof (*fw)); 1136 } 1137 1138 int 1139 fanout_walk_init(mdb_walk_state_t *wsp) 1140 { 1141 if (mdb_layered_walk("sctp_stacks", wsp) == -1) { 1142 mdb_warn("can't walk 'sctp_stacks'"); 1143 return (WALK_ERR); 1144 } 1145 1146 return (WALK_NEXT); 1147 } 1148 1149 int 1150 fanout_walk_step(mdb_walk_state_t *wsp) 1151 { 1152 fanout_init_t *fi = wsp->walk_arg; 1153 1154 if (mdb_pwalk(fi->nested_walker_name, wsp->walk_callback, 1155 wsp->walk_cbdata, wsp->walk_addr) == -1) { 1156 mdb_warn("couldn't walk '%s'for address %p", 1157 fi->nested_walker_name, wsp->walk_addr); 1158 return (WALK_ERR); 1159 } 1160 return (WALK_NEXT); 1161 } 1162 1163 int 1164 sctps_walk_init(mdb_walk_state_t *wsp) 1165 { 1166 1167 if (mdb_layered_walk("sctp_stacks", wsp) == -1) { 1168 mdb_warn("can't walk 'sctp_stacks'"); 1169 return (WALK_ERR); 1170 } 1171 1172 return (WALK_NEXT); 1173 } 1174 1175 int 1176 sctps_walk_step(mdb_walk_state_t *wsp) 1177 { 1178 uintptr_t kaddr; 1179 1180 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_list); 1181 if (mdb_pwalk("list", wsp->walk_callback, 1182 wsp->walk_cbdata, kaddr) == -1) { 1183 mdb_warn("couldn't walk 'list' for address %p", kaddr); 1184 return (WALK_ERR); 1185 } 1186 return (WALK_NEXT); 1187 } 1188 1189 static int 1190 sctp_walk_faddr_init(mdb_walk_state_t *wsp) 1191 { 1192 sctp_t sctp; 1193 1194 if (wsp->walk_addr == NULL) 1195 return (WALK_ERR); 1196 1197 if (mdb_vread(&sctp, sizeof (sctp), wsp->walk_addr) == -1) { 1198 mdb_warn("failed to read sctp at %p", wsp->walk_addr); 1199 return (WALK_ERR); 1200 } 1201 if ((wsp->walk_addr = (uintptr_t)sctp.sctp_faddrs) != NULL) 1202 return (WALK_NEXT); 1203 else 1204 return (WALK_DONE); 1205 } 1206 1207 static int 1208 sctp_walk_faddr_step(mdb_walk_state_t *wsp) 1209 { 1210 uintptr_t faddr_ptr = wsp->walk_addr; 1211 sctp_faddr_t sctp_faddr; 1212 int status; 1213 1214 if (mdb_vread(&sctp_faddr, sizeof (sctp_faddr_t), faddr_ptr) == -1) { 1215 mdb_warn("failed to read sctp_faddr_t at %p", faddr_ptr); 1216 return (WALK_ERR); 1217 } 1218 status = wsp->walk_callback(faddr_ptr, &sctp_faddr, wsp->walk_cbdata); 1219 if (status != WALK_NEXT) 1220 return (status); 1221 if ((faddr_ptr = (uintptr_t)sctp_faddr.next) == NULL) { 1222 return (WALK_DONE); 1223 } else { 1224 wsp->walk_addr = faddr_ptr; 1225 return (WALK_NEXT); 1226 } 1227 } 1228 1229 /* 1230 * Helper structure for sctp_walk_saddr. It stores the sctp_t being walked, 1231 * the current index to the sctp_saddrs[], and the current count of the 1232 * sctp_saddr_ipif_t list. 1233 */ 1234 typedef struct { 1235 sctp_t sctp; 1236 int hash_index; 1237 int cur_cnt; 1238 } saddr_walk_t; 1239 1240 static int 1241 sctp_walk_saddr_init(mdb_walk_state_t *wsp) 1242 { 1243 sctp_t *sctp; 1244 int i; 1245 saddr_walk_t *swalker; 1246 1247 if (wsp->walk_addr == NULL) 1248 return (WALK_ERR); 1249 1250 swalker = mdb_alloc(sizeof (saddr_walk_t), UM_SLEEP); 1251 sctp = &swalker->sctp; 1252 if (mdb_vread(sctp, sizeof (sctp_t), wsp->walk_addr) == -1) { 1253 mdb_warn("failed to read sctp at %p", wsp->walk_addr); 1254 mdb_free(swalker, sizeof (saddr_walk_t)); 1255 return (WALK_ERR); 1256 } 1257 1258 /* Find the first source address. */ 1259 for (i = 0; i < SCTP_IPIF_HASH; i++) { 1260 if (sctp->sctp_saddrs[i].ipif_count > 0) { 1261 list_t *addr_list; 1262 1263 addr_list = &sctp->sctp_saddrs[i].sctp_ipif_list; 1264 wsp->walk_addr = (uintptr_t)list_object(addr_list, 1265 addr_list->list_head.list_next); 1266 1267 /* Recode the current info */ 1268 swalker->hash_index = i; 1269 swalker->cur_cnt = 1; 1270 wsp->walk_data = swalker; 1271 1272 return (WALK_NEXT); 1273 } 1274 } 1275 return (WALK_DONE); 1276 } 1277 1278 static int 1279 sctp_walk_saddr_step(mdb_walk_state_t *wsp) 1280 { 1281 uintptr_t saddr_ptr = wsp->walk_addr; 1282 sctp_saddr_ipif_t saddr; 1283 saddr_walk_t *swalker; 1284 sctp_t *sctp; 1285 int status; 1286 int i, j; 1287 1288 if (mdb_vread(&saddr, sizeof (sctp_saddr_ipif_t), saddr_ptr) == -1) { 1289 mdb_warn("failed to read sctp_saddr_ipif_t at %p", saddr_ptr); 1290 return (WALK_ERR); 1291 } 1292 status = wsp->walk_callback(saddr_ptr, &saddr, wsp->walk_cbdata); 1293 if (status != WALK_NEXT) 1294 return (status); 1295 1296 swalker = (saddr_walk_t *)wsp->walk_data; 1297 sctp = &swalker->sctp; 1298 i = swalker->hash_index; 1299 j = swalker->cur_cnt; 1300 1301 /* 1302 * If there is still a source address in the current list, return it. 1303 * Otherwise, go to the next list in the sctp_saddrs[]. 1304 */ 1305 if (j++ < sctp->sctp_saddrs[i].ipif_count) { 1306 wsp->walk_addr = (uintptr_t)saddr.saddr_ipif.list_next; 1307 swalker->cur_cnt = j; 1308 return (WALK_NEXT); 1309 } else { 1310 list_t *lst; 1311 1312 for (i = i + 1; i < SCTP_IPIF_HASH; i++) { 1313 if (sctp->sctp_saddrs[i].ipif_count > 0) { 1314 lst = &sctp->sctp_saddrs[i].sctp_ipif_list; 1315 wsp->walk_addr = (uintptr_t)list_object( 1316 lst, lst->list_head.list_next); 1317 swalker->hash_index = i; 1318 swalker->cur_cnt = 1; 1319 return (WALK_NEXT); 1320 } 1321 } 1322 } 1323 return (WALK_DONE); 1324 } 1325 1326 static void 1327 sctp_walk_saddr_fini(mdb_walk_state_t *wsp) 1328 { 1329 saddr_walk_t *swalker = (saddr_walk_t *)wsp->walk_data; 1330 1331 mdb_free(swalker, sizeof (saddr_walk_t)); 1332 } 1333 1334 1335 typedef struct ill_walk_data { 1336 sctp_ill_hash_t ills[SCTP_ILL_HASH]; 1337 uint32_t count; 1338 } ill_walk_data_t; 1339 1340 typedef struct ipuf_walk_data { 1341 sctp_ipif_hash_t ipifs[SCTP_IPIF_HASH]; 1342 uint32_t count; 1343 } ipif_walk_data_t; 1344 1345 1346 int 1347 sctp_ill_walk_init(mdb_walk_state_t *wsp) 1348 { 1349 if (mdb_layered_walk("sctp_stacks", wsp) == -1) { 1350 mdb_warn("can't walk 'sctp_stacks'"); 1351 return (WALK_ERR); 1352 } 1353 1354 return (WALK_NEXT); 1355 } 1356 1357 int 1358 sctp_ill_walk_step(mdb_walk_state_t *wsp) 1359 { 1360 if (mdb_pwalk("sctp_stack_walk_ill", wsp->walk_callback, 1361 wsp->walk_cbdata, wsp->walk_addr) == -1) { 1362 mdb_warn("couldn't walk 'sctp_stack_walk_ill' for addr %p", 1363 wsp->walk_addr); 1364 return (WALK_ERR); 1365 } 1366 return (WALK_NEXT); 1367 } 1368 1369 /* 1370 * wsp->walk_addr is the address of sctps_ill_list 1371 */ 1372 static int 1373 sctp_stack_ill_walk_init(mdb_walk_state_t *wsp) 1374 { 1375 ill_walk_data_t iw; 1376 intptr_t i; 1377 uintptr_t kaddr, uaddr; 1378 size_t offset; 1379 1380 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_ills_count); 1381 if (mdb_vread(&iw.count, sizeof (iw.count), kaddr) == -1) { 1382 mdb_warn("can't read sctps_ills_count at %p", kaddr); 1383 return (WALK_ERR); 1384 } 1385 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_ills); 1386 1387 if (mdb_vread(&kaddr, sizeof (kaddr), kaddr) == -1) { 1388 mdb_warn("can't read scpts_g_ills %p", kaddr); 1389 return (WALK_ERR); 1390 } 1391 if (mdb_vread(&iw.ills, sizeof (iw.ills), kaddr) == -1) { 1392 mdb_warn("failed to read 'sctps_g_ills'"); 1393 return (NULL); 1394 } 1395 1396 /* Find the first ill. */ 1397 for (i = 0; i < SCTP_ILL_HASH; i++) { 1398 if (iw.ills[i].ill_count > 0) { 1399 uaddr = (uintptr_t)&iw.ills[i].sctp_ill_list; 1400 offset = uaddr - (uintptr_t)&iw.ills; 1401 if (mdb_pwalk("list", wsp->walk_callback, 1402 wsp->walk_cbdata, kaddr+offset) == -1) { 1403 mdb_warn("couldn't walk 'list' for address %p", 1404 kaddr); 1405 return (WALK_ERR); 1406 } 1407 } 1408 } 1409 return (WALK_DONE); 1410 } 1411 1412 static int 1413 sctp_stack_ill_walk_step(mdb_walk_state_t *wsp) 1414 { 1415 return (wsp->walk_callback(wsp->walk_addr, wsp->walk_layer, 1416 wsp->walk_cbdata)); 1417 } 1418 1419 int 1420 sctp_ipif_walk_init(mdb_walk_state_t *wsp) 1421 { 1422 if (mdb_layered_walk("sctp_stacks", wsp) == -1) { 1423 mdb_warn("can't walk 'sctp_stacks'"); 1424 return (WALK_ERR); 1425 } 1426 return (WALK_NEXT); 1427 } 1428 1429 int 1430 sctp_ipif_walk_step(mdb_walk_state_t *wsp) 1431 { 1432 if (mdb_pwalk("sctp_stack_walk_ipif", wsp->walk_callback, 1433 wsp->walk_cbdata, wsp->walk_addr) == -1) { 1434 mdb_warn("couldn't walk 'sctp_stack_walk_ipif' for addr %p", 1435 wsp->walk_addr); 1436 return (WALK_ERR); 1437 } 1438 return (WALK_NEXT); 1439 } 1440 1441 /* 1442 * wsp->walk_addr is the address of sctps_ipif_list 1443 */ 1444 static int 1445 sctp_stack_ipif_walk_init(mdb_walk_state_t *wsp) 1446 { 1447 ipif_walk_data_t iw; 1448 intptr_t i; 1449 uintptr_t kaddr, uaddr; 1450 size_t offset; 1451 1452 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_ipifs_count); 1453 if (mdb_vread(&iw.count, sizeof (iw.count), kaddr) == -1) { 1454 mdb_warn("can't read sctps_g_ipifs_count at %p", kaddr); 1455 return (WALK_ERR); 1456 } 1457 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_ipifs); 1458 1459 if (mdb_vread(&kaddr, sizeof (kaddr), kaddr) == -1) { 1460 mdb_warn("can't read scpts_g_ipifs %p", kaddr); 1461 return (WALK_ERR); 1462 } 1463 if (mdb_vread(&iw.ipifs, sizeof (iw.ipifs), kaddr) == -1) { 1464 mdb_warn("failed to read 'sctps_g_ipifs'"); 1465 return (NULL); 1466 } 1467 1468 /* Find the first ipif. */ 1469 for (i = 0; i < SCTP_IPIF_HASH; i++) { 1470 if (iw.ipifs[i].ipif_count > 0) { 1471 uaddr = (uintptr_t)&iw.ipifs[i].sctp_ipif_list; 1472 offset = uaddr - (uintptr_t)&iw.ipifs; 1473 if (mdb_pwalk("list", wsp->walk_callback, 1474 wsp->walk_cbdata, kaddr+offset) == -1) { 1475 mdb_warn("couldn't walk 'list' for address %p", 1476 kaddr); 1477 return (WALK_ERR); 1478 } 1479 } 1480 } 1481 return (WALK_DONE); 1482 } 1483 1484 static int 1485 sctp_stack_ipif_walk_step(mdb_walk_state_t *wsp) 1486 { 1487 return (wsp->walk_callback(wsp->walk_addr, wsp->walk_layer, 1488 wsp->walk_cbdata)); 1489 } 1490 1491 static void 1492 sctp_help(void) 1493 { 1494 mdb_printf("Print information for a given SCTP sctp_t\n\n"); 1495 mdb_printf("Options:\n"); 1496 mdb_printf("\t-a\t All the information\n"); 1497 mdb_printf("\t-f\t Flags\n"); 1498 mdb_printf("\t-h\t Hash Tables\n"); 1499 mdb_printf("\t-o\t Outbound Data\n"); 1500 mdb_printf("\t-i\t Inbound Data\n"); 1501 mdb_printf("\t-m\t Miscellaneous Information\n"); 1502 mdb_printf("\t-r\t RTT Tracking\n"); 1503 mdb_printf("\t-S\t Stats Counters\n"); 1504 mdb_printf("\t-F\t Flow Control\n"); 1505 mdb_printf("\t-H\t Composite Headers\n"); 1506 mdb_printf("\t-p\t PMTUD\n"); 1507 mdb_printf("\t-R\t Retransmit Information\n"); 1508 mdb_printf("\t-C\t Connection State\n"); 1509 mdb_printf("\t-c\t Cleanup / Close\n"); 1510 mdb_printf("\t-e\t Extensions and Reliable Control Chunks\n"); 1511 mdb_printf("\t-d\t Local and Peer addresses\n"); 1512 mdb_printf("\t-P\t Peer addresses\n"); 1513 } 1514 static const mdb_dcmd_t dcmds[] = { 1515 { "sctp", ":[-afhoimrSFHpRCcedP]", 1516 "display sctp control structure", sctp, sctp_help }, 1517 { "sctp_set", ":", "display a SCTP set", sctp_set }, 1518 { "sctp_faddr", ":", "display a faddr", sctp_faddr }, 1519 { "sctp_istr_msgs", ":", "display msg list on an instream", 1520 sctp_istr_msgs }, 1521 { "sctp_mdata_chunk", ":", "display a data chunk in an mblk", 1522 sctp_mdata_chunk }, 1523 { "sctp_xmit_list", ":", "display sctp xmit lists", sctp_xmit_list }, 1524 { "sctp_instr", ":", "display instr", sctp_instr }, 1525 { "sctp_reass_list", ":", "display reass list", sctp_reass_list }, 1526 { "sctp_uo_reass_list", ":", "display un-ordered reass list", 1527 sctp_uo_reass_list }, 1528 { NULL } 1529 }; 1530 1531 static const fanout_init_t listen_fanout_init = { 1532 "sctp_stack_listen_fanout", OFFSETOF(sctp_stack_t, sctps_listen_fanout), 1533 listen_size, listen_next 1534 }; 1535 1536 static const fanout_init_t conn_fanout_init = { 1537 "sctp_stack_conn_fanout", OFFSETOF(sctp_stack_t, sctps_conn_fanout), 1538 conn_size, conn_next 1539 }; 1540 1541 static const fanout_init_t bind_fanout_init = { 1542 "sctp_stack_bind_fanout", OFFSETOF(sctp_stack_t, sctps_bind_fanout), 1543 bind_size, bind_next 1544 }; 1545 1546 static const mdb_walker_t walkers[] = { 1547 { "sctps", "walk the full chain of sctps for all stacks", 1548 sctps_walk_init, sctps_walk_step, NULL }, 1549 { "sctp_listen_fanout", "walk the sctp listen fanout for all stacks", 1550 fanout_walk_init, fanout_walk_step, NULL, 1551 (void *)&listen_fanout_init }, 1552 { "sctp_conn_fanout", "walk the sctp conn fanout for all stacks", 1553 fanout_walk_init, fanout_walk_step, NULL, 1554 (void *)&conn_fanout_init }, 1555 { "sctp_bind_fanout", "walk the sctp bind fanout for all stacks", 1556 fanout_walk_init, fanout_walk_step, NULL, 1557 (void *)&bind_fanout_init }, 1558 { "sctp_stack_listen_fanout", 1559 "walk the sctp listen fanout for one stack", 1560 fanout_stack_walk_init, fanout_stack_walk_step, 1561 fanout_stack_walk_fini, 1562 (void *)&listen_fanout_init }, 1563 { "sctp_stack_conn_fanout", "walk the sctp conn fanout for one stack", 1564 fanout_stack_walk_init, fanout_stack_walk_step, 1565 fanout_stack_walk_fini, 1566 (void *)&conn_fanout_init }, 1567 { "sctp_stack_bind_fanout", "walk the sctp bind fanoutfor one stack", 1568 fanout_stack_walk_init, fanout_stack_walk_step, 1569 fanout_stack_walk_fini, 1570 (void *)&bind_fanout_init }, 1571 { "sctp_walk_faddr", "walk the peer address list of a given sctp_t", 1572 sctp_walk_faddr_init, sctp_walk_faddr_step, NULL }, 1573 { "sctp_walk_saddr", "walk the local address list of a given sctp_t", 1574 sctp_walk_saddr_init, sctp_walk_saddr_step, sctp_walk_saddr_fini }, 1575 { "sctp_walk_ill", "walk the sctp_g_ills list for all stacks", 1576 sctp_ill_walk_init, sctp_ill_walk_step, NULL }, 1577 { "sctp_walk_ipif", "walk the sctp_g_ipif list for all stacks", 1578 sctp_ipif_walk_init, sctp_ipif_walk_step, NULL }, 1579 { "sctp_stack_walk_ill", "walk the sctp_g_ills list for one stack", 1580 sctp_stack_ill_walk_init, sctp_stack_ill_walk_step, NULL }, 1581 { "sctp_stack_walk_ipif", "walk the sctp_g_ipif list for one stack", 1582 sctp_stack_ipif_walk_init, sctp_stack_ipif_walk_step, NULL }, 1583 { "sctp_stacks", "walk all the sctp_stack_t", 1584 sctp_stacks_walk_init, sctp_stacks_walk_step, NULL }, 1585 { NULL } 1586 }; 1587 1588 static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, walkers }; 1589 1590 const mdb_modinfo_t * 1591 _mdb_init(void) 1592 { 1593 return (&modinfo); 1594 } 1595