1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 2017 Dell EMC 5 * Copyright (c) 2009 Stanislav Sedov <[email protected]> 6 * Copyright (c) 1988, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 38 #include <sys/cdefs.h> 39 __FBSDID("$FreeBSD$"); 40 41 #include <sys/param.h> 42 #include <sys/elf.h> 43 #include <sys/time.h> 44 #include <sys/resourcevar.h> 45 #define _WANT_UCRED 46 #include <sys/ucred.h> 47 #undef _WANT_UCRED 48 #include <sys/proc.h> 49 #include <sys/user.h> 50 #include <sys/stat.h> 51 #include <sys/vnode.h> 52 #include <sys/socket.h> 53 #define _WANT_SOCKET 54 #include <sys/socketvar.h> 55 #include <sys/domain.h> 56 #include <sys/protosw.h> 57 #include <sys/un.h> 58 #define _WANT_UNPCB 59 #include <sys/unpcb.h> 60 #include <sys/sysctl.h> 61 #include <sys/tty.h> 62 #include <sys/filedesc.h> 63 #include <sys/queue.h> 64 #define _WANT_FILE 65 #include <sys/file.h> 66 #include <sys/conf.h> 67 #include <sys/ksem.h> 68 #include <sys/mman.h> 69 #include <sys/capsicum.h> 70 #include <sys/ptrace.h> 71 #define _KERNEL 72 #include <sys/mount.h> 73 #include <sys/filedesc.h> 74 #include <sys/pipe.h> 75 #include <ufs/ufs/quota.h> 76 #include <ufs/ufs/inode.h> 77 #include <fs/devfs/devfs.h> 78 #include <fs/devfs/devfs_int.h> 79 #undef _KERNEL 80 #include <nfs/nfsproto.h> 81 #include <nfsclient/nfs.h> 82 #include <nfsclient/nfsnode.h> 83 84 #include <vm/vm.h> 85 #include <vm/vm_map.h> 86 #include <vm/vm_object.h> 87 88 #include <net/route.h> 89 #include <netinet/in.h> 90 #include <netinet/in_systm.h> 91 #include <netinet/ip.h> 92 #define _WANT_INPCB 93 #include <netinet/in_pcb.h> 94 95 #include <assert.h> 96 #include <ctype.h> 97 #include <err.h> 98 #include <fcntl.h> 99 #include <kvm.h> 100 #include <libutil.h> 101 #include <limits.h> 102 #include <paths.h> 103 #include <pwd.h> 104 #include <stdio.h> 105 #include <stdlib.h> 106 #include <stddef.h> 107 #include <string.h> 108 #include <unistd.h> 109 #include <netdb.h> 110 111 #include <libprocstat.h> 112 #include "libprocstat_internal.h" 113 #include "common_kvm.h" 114 #include "core.h" 115 116 int statfs(const char *, struct statfs *); /* XXX */ 117 118 #define PROCSTAT_KVM 1 119 #define PROCSTAT_SYSCTL 2 120 #define PROCSTAT_CORE 3 121 122 static char **getargv(struct procstat *procstat, struct kinfo_proc *kp, 123 size_t nchr, int env); 124 static char *getmnton(kvm_t *kd, struct mount *m); 125 static struct kinfo_vmentry * kinfo_getvmmap_core(struct procstat_core *core, 126 int *cntp); 127 static Elf_Auxinfo *procstat_getauxv_core(struct procstat_core *core, 128 unsigned int *cntp); 129 static Elf_Auxinfo *procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp); 130 static struct filestat_list *procstat_getfiles_kvm( 131 struct procstat *procstat, struct kinfo_proc *kp, int mmapped); 132 static struct filestat_list *procstat_getfiles_sysctl( 133 struct procstat *procstat, struct kinfo_proc *kp, int mmapped); 134 static int procstat_get_pipe_info_sysctl(struct filestat *fst, 135 struct pipestat *pipe, char *errbuf); 136 static int procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst, 137 struct pipestat *pipe, char *errbuf); 138 static int procstat_get_pts_info_sysctl(struct filestat *fst, 139 struct ptsstat *pts, char *errbuf); 140 static int procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst, 141 struct ptsstat *pts, char *errbuf); 142 static int procstat_get_sem_info_sysctl(struct filestat *fst, 143 struct semstat *sem, char *errbuf); 144 static int procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst, 145 struct semstat *sem, char *errbuf); 146 static int procstat_get_shm_info_sysctl(struct filestat *fst, 147 struct shmstat *shm, char *errbuf); 148 static int procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst, 149 struct shmstat *shm, char *errbuf); 150 static int procstat_get_socket_info_sysctl(struct filestat *fst, 151 struct sockstat *sock, char *errbuf); 152 static int procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst, 153 struct sockstat *sock, char *errbuf); 154 static int to_filestat_flags(int flags); 155 static int procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst, 156 struct vnstat *vn, char *errbuf); 157 static int procstat_get_vnode_info_sysctl(struct filestat *fst, 158 struct vnstat *vn, char *errbuf); 159 static gid_t *procstat_getgroups_core(struct procstat_core *core, 160 unsigned int *count); 161 static gid_t * procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp, 162 unsigned int *count); 163 static gid_t *procstat_getgroups_sysctl(pid_t pid, unsigned int *count); 164 static struct kinfo_kstack *procstat_getkstack_sysctl(pid_t pid, 165 int *cntp); 166 static int procstat_getosrel_core(struct procstat_core *core, 167 int *osrelp); 168 static int procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp, 169 int *osrelp); 170 static int procstat_getosrel_sysctl(pid_t pid, int *osrelp); 171 static int procstat_getpathname_core(struct procstat_core *core, 172 char *pathname, size_t maxlen); 173 static int procstat_getpathname_sysctl(pid_t pid, char *pathname, 174 size_t maxlen); 175 static int procstat_getrlimit_core(struct procstat_core *core, int which, 176 struct rlimit* rlimit); 177 static int procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp, 178 int which, struct rlimit* rlimit); 179 static int procstat_getrlimit_sysctl(pid_t pid, int which, 180 struct rlimit* rlimit); 181 static int procstat_getumask_core(struct procstat_core *core, 182 unsigned short *maskp); 183 static int procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp, 184 unsigned short *maskp); 185 static int procstat_getumask_sysctl(pid_t pid, unsigned short *maskp); 186 static int vntype2psfsttype(int type); 187 188 void 189 procstat_close(struct procstat *procstat) 190 { 191 192 assert(procstat); 193 if (procstat->type == PROCSTAT_KVM) 194 kvm_close(procstat->kd); 195 else if (procstat->type == PROCSTAT_CORE) 196 procstat_core_close(procstat->core); 197 procstat_freeargv(procstat); 198 procstat_freeenvv(procstat); 199 free(procstat); 200 } 201 202 struct procstat * 203 procstat_open_sysctl(void) 204 { 205 struct procstat *procstat; 206 207 procstat = calloc(1, sizeof(*procstat)); 208 if (procstat == NULL) { 209 warn("malloc()"); 210 return (NULL); 211 } 212 procstat->type = PROCSTAT_SYSCTL; 213 return (procstat); 214 } 215 216 struct procstat * 217 procstat_open_kvm(const char *nlistf, const char *memf) 218 { 219 struct procstat *procstat; 220 kvm_t *kd; 221 char buf[_POSIX2_LINE_MAX]; 222 223 procstat = calloc(1, sizeof(*procstat)); 224 if (procstat == NULL) { 225 warn("malloc()"); 226 return (NULL); 227 } 228 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf); 229 if (kd == NULL) { 230 warnx("kvm_openfiles(): %s", buf); 231 free(procstat); 232 return (NULL); 233 } 234 procstat->type = PROCSTAT_KVM; 235 procstat->kd = kd; 236 return (procstat); 237 } 238 239 struct procstat * 240 procstat_open_core(const char *filename) 241 { 242 struct procstat *procstat; 243 struct procstat_core *core; 244 245 procstat = calloc(1, sizeof(*procstat)); 246 if (procstat == NULL) { 247 warn("malloc()"); 248 return (NULL); 249 } 250 core = procstat_core_open(filename); 251 if (core == NULL) { 252 free(procstat); 253 return (NULL); 254 } 255 procstat->type = PROCSTAT_CORE; 256 procstat->core = core; 257 return (procstat); 258 } 259 260 struct kinfo_proc * 261 procstat_getprocs(struct procstat *procstat, int what, int arg, 262 unsigned int *count) 263 { 264 struct kinfo_proc *p0, *p; 265 size_t len, olen; 266 int name[4]; 267 int cnt; 268 int error; 269 270 assert(procstat); 271 assert(count); 272 p = NULL; 273 if (procstat->type == PROCSTAT_KVM) { 274 *count = 0; 275 p0 = kvm_getprocs(procstat->kd, what, arg, &cnt); 276 if (p0 == NULL || cnt <= 0) 277 return (NULL); 278 *count = cnt; 279 len = *count * sizeof(*p); 280 p = malloc(len); 281 if (p == NULL) { 282 warnx("malloc(%zu)", len); 283 goto fail; 284 } 285 bcopy(p0, p, len); 286 return (p); 287 } else if (procstat->type == PROCSTAT_SYSCTL) { 288 len = 0; 289 name[0] = CTL_KERN; 290 name[1] = KERN_PROC; 291 name[2] = what; 292 name[3] = arg; 293 error = sysctl(name, nitems(name), NULL, &len, NULL, 0); 294 if (error < 0 && errno != EPERM) { 295 warn("sysctl(kern.proc)"); 296 goto fail; 297 } 298 if (len == 0) { 299 warnx("no processes?"); 300 goto fail; 301 } 302 do { 303 len += len / 10; 304 p = reallocf(p, len); 305 if (p == NULL) { 306 warnx("reallocf(%zu)", len); 307 goto fail; 308 } 309 olen = len; 310 error = sysctl(name, nitems(name), p, &len, NULL, 0); 311 } while (error < 0 && errno == ENOMEM && olen == len); 312 if (error < 0 && errno != EPERM) { 313 warn("sysctl(kern.proc)"); 314 goto fail; 315 } 316 /* Perform simple consistency checks. */ 317 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) { 318 warnx("kinfo_proc structure size mismatch (len = %zu)", len); 319 goto fail; 320 } 321 *count = len / sizeof(*p); 322 return (p); 323 } else if (procstat->type == PROCSTAT_CORE) { 324 p = procstat_core_get(procstat->core, PSC_TYPE_PROC, NULL, 325 &len); 326 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) { 327 warnx("kinfo_proc structure size mismatch"); 328 goto fail; 329 } 330 *count = len / sizeof(*p); 331 return (p); 332 } else { 333 warnx("unknown access method: %d", procstat->type); 334 return (NULL); 335 } 336 fail: 337 if (p) 338 free(p); 339 return (NULL); 340 } 341 342 void 343 procstat_freeprocs(struct procstat *procstat __unused, struct kinfo_proc *p) 344 { 345 346 if (p != NULL) 347 free(p); 348 p = NULL; 349 } 350 351 struct filestat_list * 352 procstat_getfiles(struct procstat *procstat, struct kinfo_proc *kp, int mmapped) 353 { 354 355 switch(procstat->type) { 356 case PROCSTAT_KVM: 357 return (procstat_getfiles_kvm(procstat, kp, mmapped)); 358 case PROCSTAT_SYSCTL: 359 case PROCSTAT_CORE: 360 return (procstat_getfiles_sysctl(procstat, kp, mmapped)); 361 default: 362 warnx("unknown access method: %d", procstat->type); 363 return (NULL); 364 } 365 } 366 367 void 368 procstat_freefiles(struct procstat *procstat, struct filestat_list *head) 369 { 370 struct filestat *fst, *tmp; 371 372 STAILQ_FOREACH_SAFE(fst, head, next, tmp) { 373 if (fst->fs_path != NULL) 374 free(fst->fs_path); 375 free(fst); 376 } 377 free(head); 378 if (procstat->vmentries != NULL) { 379 free(procstat->vmentries); 380 procstat->vmentries = NULL; 381 } 382 if (procstat->files != NULL) { 383 free(procstat->files); 384 procstat->files = NULL; 385 } 386 } 387 388 static struct filestat * 389 filestat_new_entry(void *typedep, int type, int fd, int fflags, int uflags, 390 int refcount, off_t offset, char *path, cap_rights_t *cap_rightsp) 391 { 392 struct filestat *entry; 393 394 entry = calloc(1, sizeof(*entry)); 395 if (entry == NULL) { 396 warn("malloc()"); 397 return (NULL); 398 } 399 entry->fs_typedep = typedep; 400 entry->fs_fflags = fflags; 401 entry->fs_uflags = uflags; 402 entry->fs_fd = fd; 403 entry->fs_type = type; 404 entry->fs_ref_count = refcount; 405 entry->fs_offset = offset; 406 entry->fs_path = path; 407 if (cap_rightsp != NULL) 408 entry->fs_cap_rights = *cap_rightsp; 409 else 410 cap_rights_init(&entry->fs_cap_rights); 411 return (entry); 412 } 413 414 static struct vnode * 415 getctty(kvm_t *kd, struct kinfo_proc *kp) 416 { 417 struct pgrp pgrp; 418 struct proc proc; 419 struct session sess; 420 int error; 421 422 assert(kp); 423 error = kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc, 424 sizeof(proc)); 425 if (error == 0) { 426 warnx("can't read proc struct at %p for pid %d", 427 kp->ki_paddr, kp->ki_pid); 428 return (NULL); 429 } 430 if (proc.p_pgrp == NULL) 431 return (NULL); 432 error = kvm_read_all(kd, (unsigned long)proc.p_pgrp, &pgrp, 433 sizeof(pgrp)); 434 if (error == 0) { 435 warnx("can't read pgrp struct at %p for pid %d", 436 proc.p_pgrp, kp->ki_pid); 437 return (NULL); 438 } 439 error = kvm_read_all(kd, (unsigned long)pgrp.pg_session, &sess, 440 sizeof(sess)); 441 if (error == 0) { 442 warnx("can't read session struct at %p for pid %d", 443 pgrp.pg_session, kp->ki_pid); 444 return (NULL); 445 } 446 return (sess.s_ttyvp); 447 } 448 449 static int 450 procstat_vm_map_reader(void *token, vm_map_entry_t addr, vm_map_entry_t dest) 451 { 452 kvm_t *kd; 453 454 kd = (kvm_t *)token; 455 return (kvm_read_all(kd, (unsigned long)addr, dest, sizeof(*dest))); 456 } 457 458 static struct filestat_list * 459 procstat_getfiles_kvm(struct procstat *procstat, struct kinfo_proc *kp, int mmapped) 460 { 461 struct file file; 462 struct filedesc filed; 463 struct pwddesc pathsd; 464 struct fdescenttbl *fdt; 465 struct pwd pwd; 466 unsigned long pwd_addr; 467 struct vm_map_entry vmentry; 468 struct vm_object object; 469 struct vmspace vmspace; 470 vm_map_entry_t entryp; 471 vm_object_t objp; 472 struct vnode *vp; 473 struct filestat *entry; 474 struct filestat_list *head; 475 kvm_t *kd; 476 void *data; 477 int fflags; 478 unsigned int i; 479 int prot, type; 480 size_t fdt_size; 481 unsigned int nfiles; 482 bool haspwd; 483 484 assert(procstat); 485 kd = procstat->kd; 486 if (kd == NULL) 487 return (NULL); 488 if (kp->ki_fd == NULL || kp->ki_pd == NULL) 489 return (NULL); 490 if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &filed, 491 sizeof(filed))) { 492 warnx("can't read filedesc at %p", (void *)kp->ki_fd); 493 return (NULL); 494 } 495 if (!kvm_read_all(kd, (unsigned long)kp->ki_pd, &pathsd, 496 sizeof(pathsd))) { 497 warnx("can't read pwddesc at %p", (void *)kp->ki_pd); 498 return (NULL); 499 } 500 haspwd = false; 501 pwd_addr = (unsigned long)(PWDDESC_KVM_LOAD_PWD(&pathsd)); 502 if (pwd_addr != 0) { 503 if (!kvm_read_all(kd, pwd_addr, &pwd, sizeof(pwd))) { 504 warnx("can't read fd_pwd at %p", (void *)pwd_addr); 505 return (NULL); 506 } 507 haspwd = true; 508 } 509 510 /* 511 * Allocate list head. 512 */ 513 head = malloc(sizeof(*head)); 514 if (head == NULL) 515 return (NULL); 516 STAILQ_INIT(head); 517 518 /* root directory vnode, if one. */ 519 if (haspwd) { 520 if (pwd.pwd_rdir) { 521 entry = filestat_new_entry(pwd.pwd_rdir, PS_FST_TYPE_VNODE, -1, 522 PS_FST_FFLAG_READ, PS_FST_UFLAG_RDIR, 0, 0, NULL, NULL); 523 if (entry != NULL) 524 STAILQ_INSERT_TAIL(head, entry, next); 525 } 526 /* current working directory vnode. */ 527 if (pwd.pwd_cdir) { 528 entry = filestat_new_entry(pwd.pwd_cdir, PS_FST_TYPE_VNODE, -1, 529 PS_FST_FFLAG_READ, PS_FST_UFLAG_CDIR, 0, 0, NULL, NULL); 530 if (entry != NULL) 531 STAILQ_INSERT_TAIL(head, entry, next); 532 } 533 /* jail root, if any. */ 534 if (pwd.pwd_jdir) { 535 entry = filestat_new_entry(pwd.pwd_jdir, PS_FST_TYPE_VNODE, -1, 536 PS_FST_FFLAG_READ, PS_FST_UFLAG_JAIL, 0, 0, NULL, NULL); 537 if (entry != NULL) 538 STAILQ_INSERT_TAIL(head, entry, next); 539 } 540 } 541 /* ktrace vnode, if one */ 542 if (kp->ki_tracep) { 543 entry = filestat_new_entry(kp->ki_tracep, PS_FST_TYPE_VNODE, -1, 544 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE, 545 PS_FST_UFLAG_TRACE, 0, 0, NULL, NULL); 546 if (entry != NULL) 547 STAILQ_INSERT_TAIL(head, entry, next); 548 } 549 /* text vnode, if one */ 550 if (kp->ki_textvp) { 551 entry = filestat_new_entry(kp->ki_textvp, PS_FST_TYPE_VNODE, -1, 552 PS_FST_FFLAG_READ, PS_FST_UFLAG_TEXT, 0, 0, NULL, NULL); 553 if (entry != NULL) 554 STAILQ_INSERT_TAIL(head, entry, next); 555 } 556 /* Controlling terminal. */ 557 if ((vp = getctty(kd, kp)) != NULL) { 558 entry = filestat_new_entry(vp, PS_FST_TYPE_VNODE, -1, 559 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE, 560 PS_FST_UFLAG_CTTY, 0, 0, NULL, NULL); 561 if (entry != NULL) 562 STAILQ_INSERT_TAIL(head, entry, next); 563 } 564 565 if (!kvm_read_all(kd, (unsigned long)filed.fd_files, &nfiles, 566 sizeof(nfiles))) { 567 warnx("can't read fd_files at %p", (void *)filed.fd_files); 568 return (NULL); 569 } 570 571 fdt_size = sizeof(*fdt) + nfiles * sizeof(struct filedescent); 572 fdt = malloc(fdt_size); 573 if (fdt == NULL) { 574 warn("malloc(%zu)", fdt_size); 575 goto do_mmapped; 576 } 577 if (!kvm_read_all(kd, (unsigned long)filed.fd_files, fdt, fdt_size)) { 578 warnx("cannot read file structures at %p", (void *)filed.fd_files); 579 free(fdt); 580 goto do_mmapped; 581 } 582 for (i = 0; i < nfiles; i++) { 583 if (fdt->fdt_ofiles[i].fde_file == NULL) { 584 continue; 585 } 586 if (!kvm_read_all(kd, (unsigned long)fdt->fdt_ofiles[i].fde_file, &file, 587 sizeof(struct file))) { 588 warnx("can't read file %d at %p", i, 589 (void *)fdt->fdt_ofiles[i].fde_file); 590 continue; 591 } 592 switch (file.f_type) { 593 case DTYPE_VNODE: 594 type = PS_FST_TYPE_VNODE; 595 data = file.f_vnode; 596 break; 597 case DTYPE_SOCKET: 598 type = PS_FST_TYPE_SOCKET; 599 data = file.f_data; 600 break; 601 case DTYPE_PIPE: 602 type = PS_FST_TYPE_PIPE; 603 data = file.f_data; 604 break; 605 case DTYPE_FIFO: 606 type = PS_FST_TYPE_FIFO; 607 data = file.f_vnode; 608 break; 609 #ifdef DTYPE_PTS 610 case DTYPE_PTS: 611 type = PS_FST_TYPE_PTS; 612 data = file.f_data; 613 break; 614 #endif 615 case DTYPE_SEM: 616 type = PS_FST_TYPE_SEM; 617 data = file.f_data; 618 break; 619 case DTYPE_SHM: 620 type = PS_FST_TYPE_SHM; 621 data = file.f_data; 622 break; 623 case DTYPE_PROCDESC: 624 type = PS_FST_TYPE_PROCDESC; 625 data = file.f_data; 626 break; 627 case DTYPE_DEV: 628 type = PS_FST_TYPE_DEV; 629 data = file.f_data; 630 break; 631 case DTYPE_EVENTFD: 632 type = PS_FST_TYPE_EVENTFD; 633 data = file.f_data; 634 break; 635 default: 636 continue; 637 } 638 /* XXXRW: No capability rights support for kvm yet. */ 639 entry = filestat_new_entry(data, type, i, 640 to_filestat_flags(file.f_flag), 0, 0, 0, NULL, NULL); 641 if (entry != NULL) 642 STAILQ_INSERT_TAIL(head, entry, next); 643 } 644 free(fdt); 645 646 do_mmapped: 647 648 /* 649 * Process mmapped files if requested. 650 */ 651 if (mmapped) { 652 if (!kvm_read_all(kd, (unsigned long)kp->ki_vmspace, &vmspace, 653 sizeof(vmspace))) { 654 warnx("can't read vmspace at %p", 655 (void *)kp->ki_vmspace); 656 goto exit; 657 } 658 659 vmentry = vmspace.vm_map.header; 660 for (entryp = vm_map_entry_read_succ(kd, &vmentry, procstat_vm_map_reader); 661 entryp != NULL && entryp != &kp->ki_vmspace->vm_map.header; 662 entryp = vm_map_entry_read_succ(kd, &vmentry, procstat_vm_map_reader)) { 663 if (vmentry.eflags & MAP_ENTRY_IS_SUB_MAP) 664 continue; 665 if ((objp = vmentry.object.vm_object) == NULL) 666 continue; 667 for (; objp; objp = object.backing_object) { 668 if (!kvm_read_all(kd, (unsigned long)objp, 669 &object, sizeof(object))) { 670 warnx("can't read vm_object at %p", 671 (void *)objp); 672 break; 673 } 674 } 675 676 /* We want only vnode objects. */ 677 if (object.type != OBJT_VNODE) 678 continue; 679 680 prot = vmentry.protection; 681 fflags = 0; 682 if (prot & VM_PROT_READ) 683 fflags = PS_FST_FFLAG_READ; 684 if ((vmentry.eflags & MAP_ENTRY_COW) == 0 && 685 prot & VM_PROT_WRITE) 686 fflags |= PS_FST_FFLAG_WRITE; 687 688 /* 689 * Create filestat entry. 690 */ 691 entry = filestat_new_entry(object.handle, 692 PS_FST_TYPE_VNODE, -1, fflags, 693 PS_FST_UFLAG_MMAP, 0, 0, NULL, NULL); 694 if (entry != NULL) 695 STAILQ_INSERT_TAIL(head, entry, next); 696 } 697 if (entryp == NULL) 698 warnx("can't read vm_map_entry"); 699 } 700 exit: 701 return (head); 702 } 703 704 /* 705 * kinfo types to filestat translation. 706 */ 707 static int 708 kinfo_type2fst(int kftype) 709 { 710 static struct { 711 int kf_type; 712 int fst_type; 713 } kftypes2fst[] = { 714 { KF_TYPE_PROCDESC, PS_FST_TYPE_PROCDESC }, 715 { KF_TYPE_DEV, PS_FST_TYPE_DEV }, 716 { KF_TYPE_FIFO, PS_FST_TYPE_FIFO }, 717 { KF_TYPE_KQUEUE, PS_FST_TYPE_KQUEUE }, 718 { KF_TYPE_MQUEUE, PS_FST_TYPE_MQUEUE }, 719 { KF_TYPE_NONE, PS_FST_TYPE_NONE }, 720 { KF_TYPE_PIPE, PS_FST_TYPE_PIPE }, 721 { KF_TYPE_PTS, PS_FST_TYPE_PTS }, 722 { KF_TYPE_SEM, PS_FST_TYPE_SEM }, 723 { KF_TYPE_SHM, PS_FST_TYPE_SHM }, 724 { KF_TYPE_SOCKET, PS_FST_TYPE_SOCKET }, 725 { KF_TYPE_VNODE, PS_FST_TYPE_VNODE }, 726 { KF_TYPE_EVENTFD, PS_FST_TYPE_EVENTFD }, 727 { KF_TYPE_UNKNOWN, PS_FST_TYPE_UNKNOWN } 728 }; 729 #define NKFTYPES (sizeof(kftypes2fst) / sizeof(*kftypes2fst)) 730 unsigned int i; 731 732 for (i = 0; i < NKFTYPES; i++) 733 if (kftypes2fst[i].kf_type == kftype) 734 break; 735 if (i == NKFTYPES) 736 return (PS_FST_TYPE_UNKNOWN); 737 return (kftypes2fst[i].fst_type); 738 } 739 740 /* 741 * kinfo flags to filestat translation. 742 */ 743 static int 744 kinfo_fflags2fst(int kfflags) 745 { 746 static struct { 747 int kf_flag; 748 int fst_flag; 749 } kfflags2fst[] = { 750 { KF_FLAG_APPEND, PS_FST_FFLAG_APPEND }, 751 { KF_FLAG_ASYNC, PS_FST_FFLAG_ASYNC }, 752 { KF_FLAG_CREAT, PS_FST_FFLAG_CREAT }, 753 { KF_FLAG_DIRECT, PS_FST_FFLAG_DIRECT }, 754 { KF_FLAG_EXCL, PS_FST_FFLAG_EXCL }, 755 { KF_FLAG_EXEC, PS_FST_FFLAG_EXEC }, 756 { KF_FLAG_EXLOCK, PS_FST_FFLAG_EXLOCK }, 757 { KF_FLAG_FSYNC, PS_FST_FFLAG_SYNC }, 758 { KF_FLAG_HASLOCK, PS_FST_FFLAG_HASLOCK }, 759 { KF_FLAG_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW }, 760 { KF_FLAG_NONBLOCK, PS_FST_FFLAG_NONBLOCK }, 761 { KF_FLAG_READ, PS_FST_FFLAG_READ }, 762 { KF_FLAG_SHLOCK, PS_FST_FFLAG_SHLOCK }, 763 { KF_FLAG_TRUNC, PS_FST_FFLAG_TRUNC }, 764 { KF_FLAG_WRITE, PS_FST_FFLAG_WRITE } 765 }; 766 #define NKFFLAGS (sizeof(kfflags2fst) / sizeof(*kfflags2fst)) 767 unsigned int i; 768 int flags; 769 770 flags = 0; 771 for (i = 0; i < NKFFLAGS; i++) 772 if ((kfflags & kfflags2fst[i].kf_flag) != 0) 773 flags |= kfflags2fst[i].fst_flag; 774 return (flags); 775 } 776 777 static int 778 kinfo_uflags2fst(int fd) 779 { 780 781 switch (fd) { 782 case KF_FD_TYPE_CTTY: 783 return (PS_FST_UFLAG_CTTY); 784 case KF_FD_TYPE_CWD: 785 return (PS_FST_UFLAG_CDIR); 786 case KF_FD_TYPE_JAIL: 787 return (PS_FST_UFLAG_JAIL); 788 case KF_FD_TYPE_TEXT: 789 return (PS_FST_UFLAG_TEXT); 790 case KF_FD_TYPE_TRACE: 791 return (PS_FST_UFLAG_TRACE); 792 case KF_FD_TYPE_ROOT: 793 return (PS_FST_UFLAG_RDIR); 794 } 795 return (0); 796 } 797 798 static struct kinfo_file * 799 kinfo_getfile_core(struct procstat_core *core, int *cntp) 800 { 801 int cnt; 802 size_t len; 803 char *buf, *bp, *eb; 804 struct kinfo_file *kif, *kp, *kf; 805 806 buf = procstat_core_get(core, PSC_TYPE_FILES, NULL, &len); 807 if (buf == NULL) 808 return (NULL); 809 /* 810 * XXXMG: The code below is just copy&past from libutil. 811 * The code duplication can be avoided if libutil 812 * is extended to provide something like: 813 * struct kinfo_file *kinfo_getfile_from_buf(const char *buf, 814 * size_t len, int *cntp); 815 */ 816 817 /* Pass 1: count items */ 818 cnt = 0; 819 bp = buf; 820 eb = buf + len; 821 while (bp < eb) { 822 kf = (struct kinfo_file *)(uintptr_t)bp; 823 if (kf->kf_structsize == 0) 824 break; 825 bp += kf->kf_structsize; 826 cnt++; 827 } 828 829 kif = calloc(cnt, sizeof(*kif)); 830 if (kif == NULL) { 831 free(buf); 832 return (NULL); 833 } 834 bp = buf; 835 eb = buf + len; 836 kp = kif; 837 /* Pass 2: unpack */ 838 while (bp < eb) { 839 kf = (struct kinfo_file *)(uintptr_t)bp; 840 if (kf->kf_structsize == 0) 841 break; 842 /* Copy/expand into pre-zeroed buffer */ 843 memcpy(kp, kf, kf->kf_structsize); 844 /* Advance to next packed record */ 845 bp += kf->kf_structsize; 846 /* Set field size to fixed length, advance */ 847 kp->kf_structsize = sizeof(*kp); 848 kp++; 849 } 850 free(buf); 851 *cntp = cnt; 852 return (kif); /* Caller must free() return value */ 853 } 854 855 static struct filestat_list * 856 procstat_getfiles_sysctl(struct procstat *procstat, struct kinfo_proc *kp, 857 int mmapped) 858 { 859 struct kinfo_file *kif, *files; 860 struct kinfo_vmentry *kve, *vmentries; 861 struct filestat_list *head; 862 struct filestat *entry; 863 char *path; 864 off_t offset; 865 int cnt, fd, fflags; 866 int i, type, uflags; 867 int refcount; 868 cap_rights_t cap_rights; 869 870 assert(kp); 871 switch (procstat->type) { 872 case PROCSTAT_SYSCTL: 873 files = kinfo_getfile(kp->ki_pid, &cnt); 874 break; 875 case PROCSTAT_CORE: 876 files = kinfo_getfile_core(procstat->core, &cnt); 877 break; 878 default: 879 assert(!"invalid type"); 880 } 881 if (files == NULL && errno != EPERM) { 882 warn("kinfo_getfile()"); 883 return (NULL); 884 } 885 procstat->files = files; 886 887 /* 888 * Allocate list head. 889 */ 890 head = malloc(sizeof(*head)); 891 if (head == NULL) 892 return (NULL); 893 STAILQ_INIT(head); 894 for (i = 0; i < cnt; i++) { 895 kif = &files[i]; 896 897 type = kinfo_type2fst(kif->kf_type); 898 fd = kif->kf_fd >= 0 ? kif->kf_fd : -1; 899 fflags = kinfo_fflags2fst(kif->kf_flags); 900 uflags = kinfo_uflags2fst(kif->kf_fd); 901 refcount = kif->kf_ref_count; 902 offset = kif->kf_offset; 903 if (*kif->kf_path != '\0') 904 path = strdup(kif->kf_path); 905 else 906 path = NULL; 907 cap_rights = kif->kf_cap_rights; 908 909 /* 910 * Create filestat entry. 911 */ 912 entry = filestat_new_entry(kif, type, fd, fflags, uflags, 913 refcount, offset, path, &cap_rights); 914 if (entry != NULL) 915 STAILQ_INSERT_TAIL(head, entry, next); 916 } 917 if (mmapped != 0) { 918 vmentries = procstat_getvmmap(procstat, kp, &cnt); 919 procstat->vmentries = vmentries; 920 if (vmentries == NULL || cnt == 0) 921 goto fail; 922 for (i = 0; i < cnt; i++) { 923 kve = &vmentries[i]; 924 if (kve->kve_type != KVME_TYPE_VNODE) 925 continue; 926 fflags = 0; 927 if (kve->kve_protection & KVME_PROT_READ) 928 fflags = PS_FST_FFLAG_READ; 929 if ((kve->kve_flags & KVME_FLAG_COW) == 0 && 930 kve->kve_protection & KVME_PROT_WRITE) 931 fflags |= PS_FST_FFLAG_WRITE; 932 offset = kve->kve_offset; 933 refcount = kve->kve_ref_count; 934 if (*kve->kve_path != '\0') 935 path = strdup(kve->kve_path); 936 else 937 path = NULL; 938 entry = filestat_new_entry(kve, PS_FST_TYPE_VNODE, -1, 939 fflags, PS_FST_UFLAG_MMAP, refcount, offset, path, 940 NULL); 941 if (entry != NULL) 942 STAILQ_INSERT_TAIL(head, entry, next); 943 } 944 } 945 fail: 946 return (head); 947 } 948 949 int 950 procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst, 951 struct pipestat *ps, char *errbuf) 952 { 953 954 assert(ps); 955 if (procstat->type == PROCSTAT_KVM) { 956 return (procstat_get_pipe_info_kvm(procstat->kd, fst, ps, 957 errbuf)); 958 } else if (procstat->type == PROCSTAT_SYSCTL || 959 procstat->type == PROCSTAT_CORE) { 960 return (procstat_get_pipe_info_sysctl(fst, ps, errbuf)); 961 } else { 962 warnx("unknown access method: %d", procstat->type); 963 if (errbuf != NULL) 964 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 965 return (1); 966 } 967 } 968 969 static int 970 procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst, 971 struct pipestat *ps, char *errbuf) 972 { 973 struct pipe pi; 974 void *pipep; 975 976 assert(kd); 977 assert(ps); 978 assert(fst); 979 bzero(ps, sizeof(*ps)); 980 pipep = fst->fs_typedep; 981 if (pipep == NULL) 982 goto fail; 983 if (!kvm_read_all(kd, (unsigned long)pipep, &pi, sizeof(struct pipe))) { 984 warnx("can't read pipe at %p", (void *)pipep); 985 goto fail; 986 } 987 ps->addr = (uintptr_t)pipep; 988 ps->peer = (uintptr_t)pi.pipe_peer; 989 ps->buffer_cnt = pi.pipe_buffer.cnt; 990 return (0); 991 992 fail: 993 if (errbuf != NULL) 994 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 995 return (1); 996 } 997 998 static int 999 procstat_get_pipe_info_sysctl(struct filestat *fst, struct pipestat *ps, 1000 char *errbuf __unused) 1001 { 1002 struct kinfo_file *kif; 1003 1004 assert(ps); 1005 assert(fst); 1006 bzero(ps, sizeof(*ps)); 1007 kif = fst->fs_typedep; 1008 if (kif == NULL) 1009 return (1); 1010 ps->addr = kif->kf_un.kf_pipe.kf_pipe_addr; 1011 ps->peer = kif->kf_un.kf_pipe.kf_pipe_peer; 1012 ps->buffer_cnt = kif->kf_un.kf_pipe.kf_pipe_buffer_cnt; 1013 return (0); 1014 } 1015 1016 int 1017 procstat_get_pts_info(struct procstat *procstat, struct filestat *fst, 1018 struct ptsstat *pts, char *errbuf) 1019 { 1020 1021 assert(pts); 1022 if (procstat->type == PROCSTAT_KVM) { 1023 return (procstat_get_pts_info_kvm(procstat->kd, fst, pts, 1024 errbuf)); 1025 } else if (procstat->type == PROCSTAT_SYSCTL || 1026 procstat->type == PROCSTAT_CORE) { 1027 return (procstat_get_pts_info_sysctl(fst, pts, errbuf)); 1028 } else { 1029 warnx("unknown access method: %d", procstat->type); 1030 if (errbuf != NULL) 1031 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1032 return (1); 1033 } 1034 } 1035 1036 static int 1037 procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst, 1038 struct ptsstat *pts, char *errbuf) 1039 { 1040 struct tty tty; 1041 void *ttyp; 1042 1043 assert(kd); 1044 assert(pts); 1045 assert(fst); 1046 bzero(pts, sizeof(*pts)); 1047 ttyp = fst->fs_typedep; 1048 if (ttyp == NULL) 1049 goto fail; 1050 if (!kvm_read_all(kd, (unsigned long)ttyp, &tty, sizeof(struct tty))) { 1051 warnx("can't read tty at %p", (void *)ttyp); 1052 goto fail; 1053 } 1054 pts->dev = dev2udev(kd, tty.t_dev); 1055 (void)kdevtoname(kd, tty.t_dev, pts->devname); 1056 return (0); 1057 1058 fail: 1059 if (errbuf != NULL) 1060 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1061 return (1); 1062 } 1063 1064 static int 1065 procstat_get_pts_info_sysctl(struct filestat *fst, struct ptsstat *pts, 1066 char *errbuf __unused) 1067 { 1068 struct kinfo_file *kif; 1069 1070 assert(pts); 1071 assert(fst); 1072 bzero(pts, sizeof(*pts)); 1073 kif = fst->fs_typedep; 1074 if (kif == NULL) 1075 return (0); 1076 pts->dev = kif->kf_un.kf_pts.kf_pts_dev; 1077 strlcpy(pts->devname, kif->kf_path, sizeof(pts->devname)); 1078 return (0); 1079 } 1080 1081 int 1082 procstat_get_sem_info(struct procstat *procstat, struct filestat *fst, 1083 struct semstat *sem, char *errbuf) 1084 { 1085 1086 assert(sem); 1087 if (procstat->type == PROCSTAT_KVM) { 1088 return (procstat_get_sem_info_kvm(procstat->kd, fst, sem, 1089 errbuf)); 1090 } else if (procstat->type == PROCSTAT_SYSCTL || 1091 procstat->type == PROCSTAT_CORE) { 1092 return (procstat_get_sem_info_sysctl(fst, sem, errbuf)); 1093 } else { 1094 warnx("unknown access method: %d", procstat->type); 1095 if (errbuf != NULL) 1096 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1097 return (1); 1098 } 1099 } 1100 1101 static int 1102 procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst, 1103 struct semstat *sem, char *errbuf) 1104 { 1105 struct ksem ksem; 1106 void *ksemp; 1107 char *path; 1108 int i; 1109 1110 assert(kd); 1111 assert(sem); 1112 assert(fst); 1113 bzero(sem, sizeof(*sem)); 1114 ksemp = fst->fs_typedep; 1115 if (ksemp == NULL) 1116 goto fail; 1117 if (!kvm_read_all(kd, (unsigned long)ksemp, &ksem, 1118 sizeof(struct ksem))) { 1119 warnx("can't read ksem at %p", (void *)ksemp); 1120 goto fail; 1121 } 1122 sem->mode = S_IFREG | ksem.ks_mode; 1123 sem->value = ksem.ks_value; 1124 if (fst->fs_path == NULL && ksem.ks_path != NULL) { 1125 path = malloc(MAXPATHLEN); 1126 for (i = 0; i < MAXPATHLEN - 1; i++) { 1127 if (!kvm_read_all(kd, (unsigned long)ksem.ks_path + i, 1128 path + i, 1)) 1129 break; 1130 if (path[i] == '\0') 1131 break; 1132 } 1133 path[i] = '\0'; 1134 if (i == 0) 1135 free(path); 1136 else 1137 fst->fs_path = path; 1138 } 1139 return (0); 1140 1141 fail: 1142 if (errbuf != NULL) 1143 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1144 return (1); 1145 } 1146 1147 static int 1148 procstat_get_sem_info_sysctl(struct filestat *fst, struct semstat *sem, 1149 char *errbuf __unused) 1150 { 1151 struct kinfo_file *kif; 1152 1153 assert(sem); 1154 assert(fst); 1155 bzero(sem, sizeof(*sem)); 1156 kif = fst->fs_typedep; 1157 if (kif == NULL) 1158 return (0); 1159 sem->value = kif->kf_un.kf_sem.kf_sem_value; 1160 sem->mode = kif->kf_un.kf_sem.kf_sem_mode; 1161 return (0); 1162 } 1163 1164 int 1165 procstat_get_shm_info(struct procstat *procstat, struct filestat *fst, 1166 struct shmstat *shm, char *errbuf) 1167 { 1168 1169 assert(shm); 1170 if (procstat->type == PROCSTAT_KVM) { 1171 return (procstat_get_shm_info_kvm(procstat->kd, fst, shm, 1172 errbuf)); 1173 } else if (procstat->type == PROCSTAT_SYSCTL || 1174 procstat->type == PROCSTAT_CORE) { 1175 return (procstat_get_shm_info_sysctl(fst, shm, errbuf)); 1176 } else { 1177 warnx("unknown access method: %d", procstat->type); 1178 if (errbuf != NULL) 1179 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1180 return (1); 1181 } 1182 } 1183 1184 static int 1185 procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst, 1186 struct shmstat *shm, char *errbuf) 1187 { 1188 struct shmfd shmfd; 1189 void *shmfdp; 1190 char *path; 1191 int i; 1192 1193 assert(kd); 1194 assert(shm); 1195 assert(fst); 1196 bzero(shm, sizeof(*shm)); 1197 shmfdp = fst->fs_typedep; 1198 if (shmfdp == NULL) 1199 goto fail; 1200 if (!kvm_read_all(kd, (unsigned long)shmfdp, &shmfd, 1201 sizeof(struct shmfd))) { 1202 warnx("can't read shmfd at %p", (void *)shmfdp); 1203 goto fail; 1204 } 1205 shm->mode = S_IFREG | shmfd.shm_mode; 1206 shm->size = shmfd.shm_size; 1207 if (fst->fs_path == NULL && shmfd.shm_path != NULL) { 1208 path = malloc(MAXPATHLEN); 1209 for (i = 0; i < MAXPATHLEN - 1; i++) { 1210 if (!kvm_read_all(kd, (unsigned long)shmfd.shm_path + i, 1211 path + i, 1)) 1212 break; 1213 if (path[i] == '\0') 1214 break; 1215 } 1216 path[i] = '\0'; 1217 if (i == 0) 1218 free(path); 1219 else 1220 fst->fs_path = path; 1221 } 1222 return (0); 1223 1224 fail: 1225 if (errbuf != NULL) 1226 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1227 return (1); 1228 } 1229 1230 static int 1231 procstat_get_shm_info_sysctl(struct filestat *fst, struct shmstat *shm, 1232 char *errbuf __unused) 1233 { 1234 struct kinfo_file *kif; 1235 1236 assert(shm); 1237 assert(fst); 1238 bzero(shm, sizeof(*shm)); 1239 kif = fst->fs_typedep; 1240 if (kif == NULL) 1241 return (0); 1242 shm->size = kif->kf_un.kf_file.kf_file_size; 1243 shm->mode = kif->kf_un.kf_file.kf_file_mode; 1244 return (0); 1245 } 1246 1247 int 1248 procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst, 1249 struct vnstat *vn, char *errbuf) 1250 { 1251 1252 assert(vn); 1253 if (procstat->type == PROCSTAT_KVM) { 1254 return (procstat_get_vnode_info_kvm(procstat->kd, fst, vn, 1255 errbuf)); 1256 } else if (procstat->type == PROCSTAT_SYSCTL || 1257 procstat->type == PROCSTAT_CORE) { 1258 return (procstat_get_vnode_info_sysctl(fst, vn, errbuf)); 1259 } else { 1260 warnx("unknown access method: %d", procstat->type); 1261 if (errbuf != NULL) 1262 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1263 return (1); 1264 } 1265 } 1266 1267 static int 1268 procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst, 1269 struct vnstat *vn, char *errbuf) 1270 { 1271 /* Filesystem specific handlers. */ 1272 #define FSTYPE(fst) {#fst, fst##_filestat} 1273 struct { 1274 const char *tag; 1275 int (*handler)(kvm_t *kd, struct vnode *vp, 1276 struct vnstat *vn); 1277 } fstypes[] = { 1278 FSTYPE(devfs), 1279 FSTYPE(isofs), 1280 FSTYPE(msdosfs), 1281 FSTYPE(nfs), 1282 FSTYPE(smbfs), 1283 FSTYPE(udf), 1284 FSTYPE(ufs), 1285 #ifdef LIBPROCSTAT_ZFS 1286 FSTYPE(zfs), 1287 #endif 1288 }; 1289 #define NTYPES (sizeof(fstypes) / sizeof(*fstypes)) 1290 struct vnode vnode; 1291 char tagstr[12]; 1292 void *vp; 1293 int error; 1294 unsigned int i; 1295 1296 assert(kd); 1297 assert(vn); 1298 assert(fst); 1299 vp = fst->fs_typedep; 1300 if (vp == NULL) 1301 goto fail; 1302 error = kvm_read_all(kd, (unsigned long)vp, &vnode, sizeof(vnode)); 1303 if (error == 0) { 1304 warnx("can't read vnode at %p", (void *)vp); 1305 goto fail; 1306 } 1307 bzero(vn, sizeof(*vn)); 1308 vn->vn_type = vntype2psfsttype(vnode.v_type); 1309 if (vnode.v_type == VNON || vnode.v_type == VBAD) 1310 return (0); 1311 error = kvm_read_all(kd, (unsigned long)vnode.v_lock.lock_object.lo_name, 1312 tagstr, sizeof(tagstr)); 1313 if (error == 0) { 1314 warnx("can't read lo_name at %p", (void *)vp); 1315 goto fail; 1316 } 1317 tagstr[sizeof(tagstr) - 1] = '\0'; 1318 1319 /* 1320 * Find appropriate handler. 1321 */ 1322 for (i = 0; i < NTYPES; i++) 1323 if (!strcmp(fstypes[i].tag, tagstr)) { 1324 if (fstypes[i].handler(kd, &vnode, vn) != 0) { 1325 goto fail; 1326 } 1327 break; 1328 } 1329 if (i == NTYPES) { 1330 if (errbuf != NULL) 1331 snprintf(errbuf, _POSIX2_LINE_MAX, "?(%s)", tagstr); 1332 return (1); 1333 } 1334 vn->vn_mntdir = getmnton(kd, vnode.v_mount); 1335 if ((vnode.v_type == VBLK || vnode.v_type == VCHR) && 1336 vnode.v_rdev != NULL){ 1337 vn->vn_dev = dev2udev(kd, vnode.v_rdev); 1338 (void)kdevtoname(kd, vnode.v_rdev, vn->vn_devname); 1339 } else { 1340 vn->vn_dev = -1; 1341 } 1342 return (0); 1343 1344 fail: 1345 if (errbuf != NULL) 1346 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1347 return (1); 1348 } 1349 1350 /* 1351 * kinfo vnode type to filestat translation. 1352 */ 1353 static int 1354 kinfo_vtype2fst(int kfvtype) 1355 { 1356 static struct { 1357 int kf_vtype; 1358 int fst_vtype; 1359 } kfvtypes2fst[] = { 1360 { KF_VTYPE_VBAD, PS_FST_VTYPE_VBAD }, 1361 { KF_VTYPE_VBLK, PS_FST_VTYPE_VBLK }, 1362 { KF_VTYPE_VCHR, PS_FST_VTYPE_VCHR }, 1363 { KF_VTYPE_VDIR, PS_FST_VTYPE_VDIR }, 1364 { KF_VTYPE_VFIFO, PS_FST_VTYPE_VFIFO }, 1365 { KF_VTYPE_VLNK, PS_FST_VTYPE_VLNK }, 1366 { KF_VTYPE_VNON, PS_FST_VTYPE_VNON }, 1367 { KF_VTYPE_VREG, PS_FST_VTYPE_VREG }, 1368 { KF_VTYPE_VSOCK, PS_FST_VTYPE_VSOCK } 1369 }; 1370 #define NKFVTYPES (sizeof(kfvtypes2fst) / sizeof(*kfvtypes2fst)) 1371 unsigned int i; 1372 1373 for (i = 0; i < NKFVTYPES; i++) 1374 if (kfvtypes2fst[i].kf_vtype == kfvtype) 1375 break; 1376 if (i == NKFVTYPES) 1377 return (PS_FST_VTYPE_UNKNOWN); 1378 return (kfvtypes2fst[i].fst_vtype); 1379 } 1380 1381 static int 1382 procstat_get_vnode_info_sysctl(struct filestat *fst, struct vnstat *vn, 1383 char *errbuf) 1384 { 1385 struct statfs stbuf; 1386 struct kinfo_file *kif; 1387 struct kinfo_vmentry *kve; 1388 char *name, *path; 1389 uint64_t fileid; 1390 uint64_t size; 1391 uint64_t fsid; 1392 uint64_t rdev; 1393 uint16_t mode; 1394 int vntype; 1395 int status; 1396 1397 assert(fst); 1398 assert(vn); 1399 bzero(vn, sizeof(*vn)); 1400 if (fst->fs_typedep == NULL) 1401 return (1); 1402 if (fst->fs_uflags & PS_FST_UFLAG_MMAP) { 1403 kve = fst->fs_typedep; 1404 fileid = kve->kve_vn_fileid; 1405 fsid = kve->kve_vn_fsid; 1406 mode = kve->kve_vn_mode; 1407 path = kve->kve_path; 1408 rdev = kve->kve_vn_rdev; 1409 size = kve->kve_vn_size; 1410 vntype = kinfo_vtype2fst(kve->kve_vn_type); 1411 status = kve->kve_status; 1412 } else { 1413 kif = fst->fs_typedep; 1414 fileid = kif->kf_un.kf_file.kf_file_fileid; 1415 fsid = kif->kf_un.kf_file.kf_file_fsid; 1416 mode = kif->kf_un.kf_file.kf_file_mode; 1417 path = kif->kf_path; 1418 rdev = kif->kf_un.kf_file.kf_file_rdev; 1419 size = kif->kf_un.kf_file.kf_file_size; 1420 vntype = kinfo_vtype2fst(kif->kf_vnode_type); 1421 status = kif->kf_status; 1422 } 1423 vn->vn_type = vntype; 1424 if (vntype == PS_FST_VTYPE_VNON || vntype == PS_FST_VTYPE_VBAD) 1425 return (0); 1426 if ((status & KF_ATTR_VALID) == 0) { 1427 if (errbuf != NULL) { 1428 snprintf(errbuf, _POSIX2_LINE_MAX, 1429 "? (no info available)"); 1430 } 1431 return (1); 1432 } 1433 if (path && *path) { 1434 statfs(path, &stbuf); 1435 vn->vn_mntdir = strdup(stbuf.f_mntonname); 1436 } else 1437 vn->vn_mntdir = strdup("-"); 1438 vn->vn_dev = rdev; 1439 if (vntype == PS_FST_VTYPE_VBLK) { 1440 name = devname(rdev, S_IFBLK); 1441 if (name != NULL) 1442 strlcpy(vn->vn_devname, name, 1443 sizeof(vn->vn_devname)); 1444 } else if (vntype == PS_FST_VTYPE_VCHR) { 1445 name = devname(vn->vn_dev, S_IFCHR); 1446 if (name != NULL) 1447 strlcpy(vn->vn_devname, name, 1448 sizeof(vn->vn_devname)); 1449 } 1450 vn->vn_fsid = fsid; 1451 vn->vn_fileid = fileid; 1452 vn->vn_size = size; 1453 vn->vn_mode = mode; 1454 return (0); 1455 } 1456 1457 int 1458 procstat_get_socket_info(struct procstat *procstat, struct filestat *fst, 1459 struct sockstat *sock, char *errbuf) 1460 { 1461 1462 assert(sock); 1463 if (procstat->type == PROCSTAT_KVM) { 1464 return (procstat_get_socket_info_kvm(procstat->kd, fst, sock, 1465 errbuf)); 1466 } else if (procstat->type == PROCSTAT_SYSCTL || 1467 procstat->type == PROCSTAT_CORE) { 1468 return (procstat_get_socket_info_sysctl(fst, sock, errbuf)); 1469 } else { 1470 warnx("unknown access method: %d", procstat->type); 1471 if (errbuf != NULL) 1472 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1473 return (1); 1474 } 1475 } 1476 1477 static int 1478 procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst, 1479 struct sockstat *sock, char *errbuf) 1480 { 1481 struct domain dom; 1482 struct inpcb inpcb; 1483 struct protosw proto; 1484 struct socket s; 1485 struct unpcb unpcb; 1486 ssize_t len; 1487 void *so; 1488 1489 assert(kd); 1490 assert(sock); 1491 assert(fst); 1492 bzero(sock, sizeof(*sock)); 1493 so = fst->fs_typedep; 1494 if (so == NULL) 1495 goto fail; 1496 sock->so_addr = (uintptr_t)so; 1497 /* fill in socket */ 1498 if (!kvm_read_all(kd, (unsigned long)so, &s, 1499 sizeof(struct socket))) { 1500 warnx("can't read sock at %p", (void *)so); 1501 goto fail; 1502 } 1503 /* fill in protosw entry */ 1504 if (!kvm_read_all(kd, (unsigned long)s.so_proto, &proto, 1505 sizeof(struct protosw))) { 1506 warnx("can't read protosw at %p", (void *)s.so_proto); 1507 goto fail; 1508 } 1509 /* fill in domain */ 1510 if (!kvm_read_all(kd, (unsigned long)proto.pr_domain, &dom, 1511 sizeof(struct domain))) { 1512 warnx("can't read domain at %p", 1513 (void *)proto.pr_domain); 1514 goto fail; 1515 } 1516 if ((len = kvm_read(kd, (unsigned long)dom.dom_name, sock->dname, 1517 sizeof(sock->dname) - 1)) < 0) { 1518 warnx("can't read domain name at %p", (void *)dom.dom_name); 1519 sock->dname[0] = '\0'; 1520 } 1521 else 1522 sock->dname[len] = '\0'; 1523 1524 /* 1525 * Fill in known data. 1526 */ 1527 sock->type = s.so_type; 1528 sock->proto = proto.pr_protocol; 1529 sock->dom_family = dom.dom_family; 1530 sock->so_pcb = (uintptr_t)s.so_pcb; 1531 1532 /* 1533 * Protocol specific data. 1534 */ 1535 switch(dom.dom_family) { 1536 case AF_INET: 1537 case AF_INET6: 1538 if (proto.pr_protocol == IPPROTO_TCP) { 1539 if (s.so_pcb) { 1540 if (kvm_read(kd, (u_long)s.so_pcb, 1541 (char *)&inpcb, sizeof(struct inpcb)) 1542 != sizeof(struct inpcb)) { 1543 warnx("can't read inpcb at %p", 1544 (void *)s.so_pcb); 1545 } else 1546 sock->inp_ppcb = 1547 (uintptr_t)inpcb.inp_ppcb; 1548 sock->sendq = s.so_snd.sb_ccc; 1549 sock->recvq = s.so_rcv.sb_ccc; 1550 } 1551 } 1552 break; 1553 case AF_UNIX: 1554 if (s.so_pcb) { 1555 if (kvm_read(kd, (u_long)s.so_pcb, (char *)&unpcb, 1556 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 1557 warnx("can't read unpcb at %p", 1558 (void *)s.so_pcb); 1559 } else if (unpcb.unp_conn) { 1560 sock->so_rcv_sb_state = s.so_rcv.sb_state; 1561 sock->so_snd_sb_state = s.so_snd.sb_state; 1562 sock->unp_conn = (uintptr_t)unpcb.unp_conn; 1563 sock->sendq = s.so_snd.sb_ccc; 1564 sock->recvq = s.so_rcv.sb_ccc; 1565 } 1566 } 1567 break; 1568 default: 1569 break; 1570 } 1571 return (0); 1572 1573 fail: 1574 if (errbuf != NULL) 1575 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1576 return (1); 1577 } 1578 1579 static int 1580 procstat_get_socket_info_sysctl(struct filestat *fst, struct sockstat *sock, 1581 char *errbuf __unused) 1582 { 1583 struct kinfo_file *kif; 1584 1585 assert(sock); 1586 assert(fst); 1587 bzero(sock, sizeof(*sock)); 1588 kif = fst->fs_typedep; 1589 if (kif == NULL) 1590 return (0); 1591 1592 /* 1593 * Fill in known data. 1594 */ 1595 sock->type = kif->kf_sock_type; 1596 sock->proto = kif->kf_sock_protocol; 1597 sock->dom_family = kif->kf_sock_domain; 1598 sock->so_pcb = kif->kf_un.kf_sock.kf_sock_pcb; 1599 strlcpy(sock->dname, kif->kf_path, sizeof(sock->dname)); 1600 bcopy(&kif->kf_un.kf_sock.kf_sa_local, &sock->sa_local, 1601 kif->kf_un.kf_sock.kf_sa_local.ss_len); 1602 bcopy(&kif->kf_un.kf_sock.kf_sa_peer, &sock->sa_peer, 1603 kif->kf_un.kf_sock.kf_sa_peer.ss_len); 1604 1605 /* 1606 * Protocol specific data. 1607 */ 1608 switch(sock->dom_family) { 1609 case AF_INET: 1610 case AF_INET6: 1611 if (sock->proto == IPPROTO_TCP) { 1612 sock->inp_ppcb = kif->kf_un.kf_sock.kf_sock_inpcb; 1613 sock->sendq = kif->kf_un.kf_sock.kf_sock_sendq; 1614 sock->recvq = kif->kf_un.kf_sock.kf_sock_recvq; 1615 } 1616 break; 1617 case AF_UNIX: 1618 if (kif->kf_un.kf_sock.kf_sock_unpconn != 0) { 1619 sock->so_rcv_sb_state = 1620 kif->kf_un.kf_sock.kf_sock_rcv_sb_state; 1621 sock->so_snd_sb_state = 1622 kif->kf_un.kf_sock.kf_sock_snd_sb_state; 1623 sock->unp_conn = 1624 kif->kf_un.kf_sock.kf_sock_unpconn; 1625 sock->sendq = kif->kf_un.kf_sock.kf_sock_sendq; 1626 sock->recvq = kif->kf_un.kf_sock.kf_sock_recvq; 1627 } 1628 break; 1629 default: 1630 break; 1631 } 1632 return (0); 1633 } 1634 1635 /* 1636 * Descriptor flags to filestat translation. 1637 */ 1638 static int 1639 to_filestat_flags(int flags) 1640 { 1641 static struct { 1642 int flag; 1643 int fst_flag; 1644 } fstflags[] = { 1645 { FREAD, PS_FST_FFLAG_READ }, 1646 { FWRITE, PS_FST_FFLAG_WRITE }, 1647 { O_APPEND, PS_FST_FFLAG_APPEND }, 1648 { O_ASYNC, PS_FST_FFLAG_ASYNC }, 1649 { O_CREAT, PS_FST_FFLAG_CREAT }, 1650 { O_DIRECT, PS_FST_FFLAG_DIRECT }, 1651 { O_EXCL, PS_FST_FFLAG_EXCL }, 1652 { O_EXEC, PS_FST_FFLAG_EXEC }, 1653 { O_EXLOCK, PS_FST_FFLAG_EXLOCK }, 1654 { O_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW }, 1655 { O_NONBLOCK, PS_FST_FFLAG_NONBLOCK }, 1656 { O_SHLOCK, PS_FST_FFLAG_SHLOCK }, 1657 { O_SYNC, PS_FST_FFLAG_SYNC }, 1658 { O_TRUNC, PS_FST_FFLAG_TRUNC } 1659 }; 1660 #define NFSTFLAGS (sizeof(fstflags) / sizeof(*fstflags)) 1661 int fst_flags; 1662 unsigned int i; 1663 1664 fst_flags = 0; 1665 for (i = 0; i < NFSTFLAGS; i++) 1666 if (flags & fstflags[i].flag) 1667 fst_flags |= fstflags[i].fst_flag; 1668 return (fst_flags); 1669 } 1670 1671 /* 1672 * Vnode type to filestate translation. 1673 */ 1674 static int 1675 vntype2psfsttype(int type) 1676 { 1677 static struct { 1678 int vtype; 1679 int fst_vtype; 1680 } vt2fst[] = { 1681 { VBAD, PS_FST_VTYPE_VBAD }, 1682 { VBLK, PS_FST_VTYPE_VBLK }, 1683 { VCHR, PS_FST_VTYPE_VCHR }, 1684 { VDIR, PS_FST_VTYPE_VDIR }, 1685 { VFIFO, PS_FST_VTYPE_VFIFO }, 1686 { VLNK, PS_FST_VTYPE_VLNK }, 1687 { VNON, PS_FST_VTYPE_VNON }, 1688 { VREG, PS_FST_VTYPE_VREG }, 1689 { VSOCK, PS_FST_VTYPE_VSOCK } 1690 }; 1691 #define NVFTYPES (sizeof(vt2fst) / sizeof(*vt2fst)) 1692 unsigned int i, fst_type; 1693 1694 fst_type = PS_FST_VTYPE_UNKNOWN; 1695 for (i = 0; i < NVFTYPES; i++) { 1696 if (type == vt2fst[i].vtype) { 1697 fst_type = vt2fst[i].fst_vtype; 1698 break; 1699 } 1700 } 1701 return (fst_type); 1702 } 1703 1704 static char * 1705 getmnton(kvm_t *kd, struct mount *m) 1706 { 1707 struct mount mnt; 1708 static struct mtab { 1709 struct mtab *next; 1710 struct mount *m; 1711 char mntonname[MNAMELEN + 1]; 1712 } *mhead = NULL; 1713 struct mtab *mt; 1714 1715 for (mt = mhead; mt != NULL; mt = mt->next) 1716 if (m == mt->m) 1717 return (mt->mntonname); 1718 if (!kvm_read_all(kd, (unsigned long)m, &mnt, sizeof(struct mount))) { 1719 warnx("can't read mount table at %p", (void *)m); 1720 return (NULL); 1721 } 1722 if ((mt = malloc(sizeof (struct mtab))) == NULL) 1723 err(1, NULL); 1724 mt->m = m; 1725 bcopy(&mnt.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 1726 mt->mntonname[MNAMELEN] = '\0'; 1727 mt->next = mhead; 1728 mhead = mt; 1729 return (mt->mntonname); 1730 } 1731 1732 /* 1733 * Auxiliary structures and functions to get process environment or 1734 * command line arguments. 1735 */ 1736 struct argvec { 1737 char *buf; 1738 size_t bufsize; 1739 char **argv; 1740 size_t argc; 1741 }; 1742 1743 static struct argvec * 1744 argvec_alloc(size_t bufsize) 1745 { 1746 struct argvec *av; 1747 1748 av = malloc(sizeof(*av)); 1749 if (av == NULL) 1750 return (NULL); 1751 av->bufsize = bufsize; 1752 av->buf = malloc(av->bufsize); 1753 if (av->buf == NULL) { 1754 free(av); 1755 return (NULL); 1756 } 1757 av->argc = 32; 1758 av->argv = malloc(sizeof(char *) * av->argc); 1759 if (av->argv == NULL) { 1760 free(av->buf); 1761 free(av); 1762 return (NULL); 1763 } 1764 return av; 1765 } 1766 1767 static void 1768 argvec_free(struct argvec * av) 1769 { 1770 1771 free(av->argv); 1772 free(av->buf); 1773 free(av); 1774 } 1775 1776 static char ** 1777 getargv(struct procstat *procstat, struct kinfo_proc *kp, size_t nchr, int env) 1778 { 1779 int error, name[4], argc, i; 1780 struct argvec *av, **avp; 1781 enum psc_type type; 1782 size_t len; 1783 char *p, **argv; 1784 1785 assert(procstat); 1786 assert(kp); 1787 if (procstat->type == PROCSTAT_KVM) { 1788 warnx("can't use kvm access method"); 1789 return (NULL); 1790 } 1791 if (procstat->type != PROCSTAT_SYSCTL && 1792 procstat->type != PROCSTAT_CORE) { 1793 warnx("unknown access method: %d", procstat->type); 1794 return (NULL); 1795 } 1796 1797 if (nchr == 0 || nchr > ARG_MAX) 1798 nchr = ARG_MAX; 1799 1800 avp = (struct argvec **)(env ? &procstat->argv : &procstat->envv); 1801 av = *avp; 1802 1803 if (av == NULL) 1804 { 1805 av = argvec_alloc(nchr); 1806 if (av == NULL) 1807 { 1808 warn("malloc(%zu)", nchr); 1809 return (NULL); 1810 } 1811 *avp = av; 1812 } else if (av->bufsize < nchr) { 1813 av->buf = reallocf(av->buf, nchr); 1814 if (av->buf == NULL) { 1815 warn("malloc(%zu)", nchr); 1816 return (NULL); 1817 } 1818 } 1819 if (procstat->type == PROCSTAT_SYSCTL) { 1820 name[0] = CTL_KERN; 1821 name[1] = KERN_PROC; 1822 name[2] = env ? KERN_PROC_ENV : KERN_PROC_ARGS; 1823 name[3] = kp->ki_pid; 1824 len = nchr; 1825 error = sysctl(name, nitems(name), av->buf, &len, NULL, 0); 1826 if (error != 0 && errno != ESRCH && errno != EPERM) 1827 warn("sysctl(kern.proc.%s)", env ? "env" : "args"); 1828 if (error != 0 || len == 0) 1829 return (NULL); 1830 } else /* procstat->type == PROCSTAT_CORE */ { 1831 type = env ? PSC_TYPE_ENVV : PSC_TYPE_ARGV; 1832 len = nchr; 1833 if (procstat_core_get(procstat->core, type, av->buf, &len) 1834 == NULL) { 1835 return (NULL); 1836 } 1837 } 1838 1839 argv = av->argv; 1840 argc = av->argc; 1841 i = 0; 1842 for (p = av->buf; p < av->buf + len; p += strlen(p) + 1) { 1843 argv[i++] = p; 1844 if (i < argc) 1845 continue; 1846 /* Grow argv. */ 1847 argc += argc; 1848 argv = realloc(argv, sizeof(char *) * argc); 1849 if (argv == NULL) { 1850 warn("malloc(%zu)", sizeof(char *) * argc); 1851 return (NULL); 1852 } 1853 av->argv = argv; 1854 av->argc = argc; 1855 } 1856 argv[i] = NULL; 1857 1858 return (argv); 1859 } 1860 1861 /* 1862 * Return process command line arguments. 1863 */ 1864 char ** 1865 procstat_getargv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr) 1866 { 1867 1868 return (getargv(procstat, p, nchr, 0)); 1869 } 1870 1871 /* 1872 * Free the buffer allocated by procstat_getargv(). 1873 */ 1874 void 1875 procstat_freeargv(struct procstat *procstat) 1876 { 1877 1878 if (procstat->argv != NULL) { 1879 argvec_free(procstat->argv); 1880 procstat->argv = NULL; 1881 } 1882 } 1883 1884 /* 1885 * Return process environment. 1886 */ 1887 char ** 1888 procstat_getenvv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr) 1889 { 1890 1891 return (getargv(procstat, p, nchr, 1)); 1892 } 1893 1894 /* 1895 * Free the buffer allocated by procstat_getenvv(). 1896 */ 1897 void 1898 procstat_freeenvv(struct procstat *procstat) 1899 { 1900 if (procstat->envv != NULL) { 1901 argvec_free(procstat->envv); 1902 procstat->envv = NULL; 1903 } 1904 } 1905 1906 static struct kinfo_vmentry * 1907 kinfo_getvmmap_core(struct procstat_core *core, int *cntp) 1908 { 1909 int cnt; 1910 size_t len; 1911 char *buf, *bp, *eb; 1912 struct kinfo_vmentry *kiv, *kp, *kv; 1913 1914 buf = procstat_core_get(core, PSC_TYPE_VMMAP, NULL, &len); 1915 if (buf == NULL) 1916 return (NULL); 1917 1918 /* 1919 * XXXMG: The code below is just copy&past from libutil. 1920 * The code duplication can be avoided if libutil 1921 * is extended to provide something like: 1922 * struct kinfo_vmentry *kinfo_getvmmap_from_buf(const char *buf, 1923 * size_t len, int *cntp); 1924 */ 1925 1926 /* Pass 1: count items */ 1927 cnt = 0; 1928 bp = buf; 1929 eb = buf + len; 1930 while (bp < eb) { 1931 kv = (struct kinfo_vmentry *)(uintptr_t)bp; 1932 if (kv->kve_structsize == 0) 1933 break; 1934 bp += kv->kve_structsize; 1935 cnt++; 1936 } 1937 1938 kiv = calloc(cnt, sizeof(*kiv)); 1939 if (kiv == NULL) { 1940 free(buf); 1941 return (NULL); 1942 } 1943 bp = buf; 1944 eb = buf + len; 1945 kp = kiv; 1946 /* Pass 2: unpack */ 1947 while (bp < eb) { 1948 kv = (struct kinfo_vmentry *)(uintptr_t)bp; 1949 if (kv->kve_structsize == 0) 1950 break; 1951 /* Copy/expand into pre-zeroed buffer */ 1952 memcpy(kp, kv, kv->kve_structsize); 1953 /* Advance to next packed record */ 1954 bp += kv->kve_structsize; 1955 /* Set field size to fixed length, advance */ 1956 kp->kve_structsize = sizeof(*kp); 1957 kp++; 1958 } 1959 free(buf); 1960 *cntp = cnt; 1961 return (kiv); /* Caller must free() return value */ 1962 } 1963 1964 struct kinfo_vmentry * 1965 procstat_getvmmap(struct procstat *procstat, struct kinfo_proc *kp, 1966 unsigned int *cntp) 1967 { 1968 1969 switch(procstat->type) { 1970 case PROCSTAT_KVM: 1971 warnx("kvm method is not supported"); 1972 return (NULL); 1973 case PROCSTAT_SYSCTL: 1974 return (kinfo_getvmmap(kp->ki_pid, cntp)); 1975 case PROCSTAT_CORE: 1976 return (kinfo_getvmmap_core(procstat->core, cntp)); 1977 default: 1978 warnx("unknown access method: %d", procstat->type); 1979 return (NULL); 1980 } 1981 } 1982 1983 void 1984 procstat_freevmmap(struct procstat *procstat __unused, 1985 struct kinfo_vmentry *vmmap) 1986 { 1987 1988 free(vmmap); 1989 } 1990 1991 static gid_t * 1992 procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned int *cntp) 1993 { 1994 struct proc proc; 1995 struct ucred ucred; 1996 gid_t *groups; 1997 size_t len; 1998 1999 assert(kd != NULL); 2000 assert(kp != NULL); 2001 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc, 2002 sizeof(proc))) { 2003 warnx("can't read proc struct at %p for pid %d", 2004 kp->ki_paddr, kp->ki_pid); 2005 return (NULL); 2006 } 2007 if (proc.p_ucred == NOCRED) 2008 return (NULL); 2009 if (!kvm_read_all(kd, (unsigned long)proc.p_ucred, &ucred, 2010 sizeof(ucred))) { 2011 warnx("can't read ucred struct at %p for pid %d", 2012 proc.p_ucred, kp->ki_pid); 2013 return (NULL); 2014 } 2015 len = ucred.cr_ngroups * sizeof(gid_t); 2016 groups = malloc(len); 2017 if (groups == NULL) { 2018 warn("malloc(%zu)", len); 2019 return (NULL); 2020 } 2021 if (!kvm_read_all(kd, (unsigned long)ucred.cr_groups, groups, len)) { 2022 warnx("can't read groups at %p for pid %d", 2023 ucred.cr_groups, kp->ki_pid); 2024 free(groups); 2025 return (NULL); 2026 } 2027 *cntp = ucred.cr_ngroups; 2028 return (groups); 2029 } 2030 2031 static gid_t * 2032 procstat_getgroups_sysctl(pid_t pid, unsigned int *cntp) 2033 { 2034 int mib[4]; 2035 size_t len; 2036 gid_t *groups; 2037 2038 mib[0] = CTL_KERN; 2039 mib[1] = KERN_PROC; 2040 mib[2] = KERN_PROC_GROUPS; 2041 mib[3] = pid; 2042 len = (sysconf(_SC_NGROUPS_MAX) + 1) * sizeof(gid_t); 2043 groups = malloc(len); 2044 if (groups == NULL) { 2045 warn("malloc(%zu)", len); 2046 return (NULL); 2047 } 2048 if (sysctl(mib, nitems(mib), groups, &len, NULL, 0) == -1) { 2049 warn("sysctl: kern.proc.groups: %d", pid); 2050 free(groups); 2051 return (NULL); 2052 } 2053 *cntp = len / sizeof(gid_t); 2054 return (groups); 2055 } 2056 2057 static gid_t * 2058 procstat_getgroups_core(struct procstat_core *core, unsigned int *cntp) 2059 { 2060 size_t len; 2061 gid_t *groups; 2062 2063 groups = procstat_core_get(core, PSC_TYPE_GROUPS, NULL, &len); 2064 if (groups == NULL) 2065 return (NULL); 2066 *cntp = len / sizeof(gid_t); 2067 return (groups); 2068 } 2069 2070 gid_t * 2071 procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp, 2072 unsigned int *cntp) 2073 { 2074 switch(procstat->type) { 2075 case PROCSTAT_KVM: 2076 return (procstat_getgroups_kvm(procstat->kd, kp, cntp)); 2077 case PROCSTAT_SYSCTL: 2078 return (procstat_getgroups_sysctl(kp->ki_pid, cntp)); 2079 case PROCSTAT_CORE: 2080 return (procstat_getgroups_core(procstat->core, cntp)); 2081 default: 2082 warnx("unknown access method: %d", procstat->type); 2083 return (NULL); 2084 } 2085 } 2086 2087 void 2088 procstat_freegroups(struct procstat *procstat __unused, gid_t *groups) 2089 { 2090 2091 free(groups); 2092 } 2093 2094 static int 2095 procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned short *maskp) 2096 { 2097 struct pwddesc pd; 2098 2099 assert(kd != NULL); 2100 assert(kp != NULL); 2101 if (kp->ki_pd == NULL) 2102 return (-1); 2103 if (!kvm_read_all(kd, (unsigned long)kp->ki_pd, &pd, sizeof(pd))) { 2104 warnx("can't read pwddesc at %p for pid %d", kp->ki_pd, 2105 kp->ki_pid); 2106 return (-1); 2107 } 2108 *maskp = pd.pd_cmask; 2109 return (0); 2110 } 2111 2112 static int 2113 procstat_getumask_sysctl(pid_t pid, unsigned short *maskp) 2114 { 2115 int error; 2116 int mib[4]; 2117 size_t len; 2118 2119 mib[0] = CTL_KERN; 2120 mib[1] = KERN_PROC; 2121 mib[2] = KERN_PROC_UMASK; 2122 mib[3] = pid; 2123 len = sizeof(*maskp); 2124 error = sysctl(mib, nitems(mib), maskp, &len, NULL, 0); 2125 if (error != 0 && errno != ESRCH && errno != EPERM) 2126 warn("sysctl: kern.proc.umask: %d", pid); 2127 return (error); 2128 } 2129 2130 static int 2131 procstat_getumask_core(struct procstat_core *core, unsigned short *maskp) 2132 { 2133 size_t len; 2134 unsigned short *buf; 2135 2136 buf = procstat_core_get(core, PSC_TYPE_UMASK, NULL, &len); 2137 if (buf == NULL) 2138 return (-1); 2139 if (len < sizeof(*maskp)) { 2140 free(buf); 2141 return (-1); 2142 } 2143 *maskp = *buf; 2144 free(buf); 2145 return (0); 2146 } 2147 2148 int 2149 procstat_getumask(struct procstat *procstat, struct kinfo_proc *kp, 2150 unsigned short *maskp) 2151 { 2152 switch(procstat->type) { 2153 case PROCSTAT_KVM: 2154 return (procstat_getumask_kvm(procstat->kd, kp, maskp)); 2155 case PROCSTAT_SYSCTL: 2156 return (procstat_getumask_sysctl(kp->ki_pid, maskp)); 2157 case PROCSTAT_CORE: 2158 return (procstat_getumask_core(procstat->core, maskp)); 2159 default: 2160 warnx("unknown access method: %d", procstat->type); 2161 return (-1); 2162 } 2163 } 2164 2165 static int 2166 procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp, int which, 2167 struct rlimit* rlimit) 2168 { 2169 struct proc proc; 2170 unsigned long offset; 2171 2172 assert(kd != NULL); 2173 assert(kp != NULL); 2174 assert(which >= 0 && which < RLIM_NLIMITS); 2175 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc, 2176 sizeof(proc))) { 2177 warnx("can't read proc struct at %p for pid %d", 2178 kp->ki_paddr, kp->ki_pid); 2179 return (-1); 2180 } 2181 if (proc.p_limit == NULL) 2182 return (-1); 2183 offset = (unsigned long)proc.p_limit + sizeof(struct rlimit) * which; 2184 if (!kvm_read_all(kd, offset, rlimit, sizeof(*rlimit))) { 2185 warnx("can't read rlimit struct at %p for pid %d", 2186 (void *)offset, kp->ki_pid); 2187 return (-1); 2188 } 2189 return (0); 2190 } 2191 2192 static int 2193 procstat_getrlimit_sysctl(pid_t pid, int which, struct rlimit* rlimit) 2194 { 2195 int error, name[5]; 2196 size_t len; 2197 2198 name[0] = CTL_KERN; 2199 name[1] = KERN_PROC; 2200 name[2] = KERN_PROC_RLIMIT; 2201 name[3] = pid; 2202 name[4] = which; 2203 len = sizeof(struct rlimit); 2204 error = sysctl(name, nitems(name), rlimit, &len, NULL, 0); 2205 if (error < 0 && errno != ESRCH) { 2206 warn("sysctl: kern.proc.rlimit: %d", pid); 2207 return (-1); 2208 } 2209 if (error < 0 || len != sizeof(struct rlimit)) 2210 return (-1); 2211 return (0); 2212 } 2213 2214 static int 2215 procstat_getrlimit_core(struct procstat_core *core, int which, 2216 struct rlimit* rlimit) 2217 { 2218 size_t len; 2219 struct rlimit* rlimits; 2220 2221 if (which < 0 || which >= RLIM_NLIMITS) { 2222 errno = EINVAL; 2223 warn("getrlimit: which"); 2224 return (-1); 2225 } 2226 rlimits = procstat_core_get(core, PSC_TYPE_RLIMIT, NULL, &len); 2227 if (rlimits == NULL) 2228 return (-1); 2229 if (len < sizeof(struct rlimit) * RLIM_NLIMITS) { 2230 free(rlimits); 2231 return (-1); 2232 } 2233 *rlimit = rlimits[which]; 2234 free(rlimits); 2235 return (0); 2236 } 2237 2238 int 2239 procstat_getrlimit(struct procstat *procstat, struct kinfo_proc *kp, int which, 2240 struct rlimit* rlimit) 2241 { 2242 switch(procstat->type) { 2243 case PROCSTAT_KVM: 2244 return (procstat_getrlimit_kvm(procstat->kd, kp, which, 2245 rlimit)); 2246 case PROCSTAT_SYSCTL: 2247 return (procstat_getrlimit_sysctl(kp->ki_pid, which, rlimit)); 2248 case PROCSTAT_CORE: 2249 return (procstat_getrlimit_core(procstat->core, which, rlimit)); 2250 default: 2251 warnx("unknown access method: %d", procstat->type); 2252 return (-1); 2253 } 2254 } 2255 2256 static int 2257 procstat_getpathname_sysctl(pid_t pid, char *pathname, size_t maxlen) 2258 { 2259 int error, name[4]; 2260 size_t len; 2261 2262 name[0] = CTL_KERN; 2263 name[1] = KERN_PROC; 2264 name[2] = KERN_PROC_PATHNAME; 2265 name[3] = pid; 2266 len = maxlen; 2267 error = sysctl(name, nitems(name), pathname, &len, NULL, 0); 2268 if (error != 0 && errno != ESRCH) 2269 warn("sysctl: kern.proc.pathname: %d", pid); 2270 if (len == 0) 2271 pathname[0] = '\0'; 2272 return (error); 2273 } 2274 2275 static int 2276 procstat_getpathname_core(struct procstat_core *core, char *pathname, 2277 size_t maxlen) 2278 { 2279 struct kinfo_file *files; 2280 int cnt, i, result; 2281 2282 files = kinfo_getfile_core(core, &cnt); 2283 if (files == NULL) 2284 return (-1); 2285 result = -1; 2286 for (i = 0; i < cnt; i++) { 2287 if (files[i].kf_fd != KF_FD_TYPE_TEXT) 2288 continue; 2289 strncpy(pathname, files[i].kf_path, maxlen); 2290 result = 0; 2291 break; 2292 } 2293 free(files); 2294 return (result); 2295 } 2296 2297 int 2298 procstat_getpathname(struct procstat *procstat, struct kinfo_proc *kp, 2299 char *pathname, size_t maxlen) 2300 { 2301 switch(procstat->type) { 2302 case PROCSTAT_KVM: 2303 /* XXX: Return empty string. */ 2304 if (maxlen > 0) 2305 pathname[0] = '\0'; 2306 return (0); 2307 case PROCSTAT_SYSCTL: 2308 return (procstat_getpathname_sysctl(kp->ki_pid, pathname, 2309 maxlen)); 2310 case PROCSTAT_CORE: 2311 return (procstat_getpathname_core(procstat->core, pathname, 2312 maxlen)); 2313 default: 2314 warnx("unknown access method: %d", procstat->type); 2315 return (-1); 2316 } 2317 } 2318 2319 static int 2320 procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp, int *osrelp) 2321 { 2322 struct proc proc; 2323 2324 assert(kd != NULL); 2325 assert(kp != NULL); 2326 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc, 2327 sizeof(proc))) { 2328 warnx("can't read proc struct at %p for pid %d", 2329 kp->ki_paddr, kp->ki_pid); 2330 return (-1); 2331 } 2332 *osrelp = proc.p_osrel; 2333 return (0); 2334 } 2335 2336 static int 2337 procstat_getosrel_sysctl(pid_t pid, int *osrelp) 2338 { 2339 int error, name[4]; 2340 size_t len; 2341 2342 name[0] = CTL_KERN; 2343 name[1] = KERN_PROC; 2344 name[2] = KERN_PROC_OSREL; 2345 name[3] = pid; 2346 len = sizeof(*osrelp); 2347 error = sysctl(name, nitems(name), osrelp, &len, NULL, 0); 2348 if (error != 0 && errno != ESRCH) 2349 warn("sysctl: kern.proc.osrel: %d", pid); 2350 return (error); 2351 } 2352 2353 static int 2354 procstat_getosrel_core(struct procstat_core *core, int *osrelp) 2355 { 2356 size_t len; 2357 int *buf; 2358 2359 buf = procstat_core_get(core, PSC_TYPE_OSREL, NULL, &len); 2360 if (buf == NULL) 2361 return (-1); 2362 if (len < sizeof(*osrelp)) { 2363 free(buf); 2364 return (-1); 2365 } 2366 *osrelp = *buf; 2367 free(buf); 2368 return (0); 2369 } 2370 2371 int 2372 procstat_getosrel(struct procstat *procstat, struct kinfo_proc *kp, int *osrelp) 2373 { 2374 switch(procstat->type) { 2375 case PROCSTAT_KVM: 2376 return (procstat_getosrel_kvm(procstat->kd, kp, osrelp)); 2377 case PROCSTAT_SYSCTL: 2378 return (procstat_getosrel_sysctl(kp->ki_pid, osrelp)); 2379 case PROCSTAT_CORE: 2380 return (procstat_getosrel_core(procstat->core, osrelp)); 2381 default: 2382 warnx("unknown access method: %d", procstat->type); 2383 return (-1); 2384 } 2385 } 2386 2387 #define PROC_AUXV_MAX 256 2388 2389 #if __ELF_WORD_SIZE == 64 2390 static const char *elf32_sv_names[] = { 2391 "Linux ELF32", 2392 "FreeBSD ELF32", 2393 }; 2394 2395 static int 2396 is_elf32_sysctl(pid_t pid) 2397 { 2398 int error, name[4]; 2399 size_t len, i; 2400 static char sv_name[256]; 2401 2402 name[0] = CTL_KERN; 2403 name[1] = KERN_PROC; 2404 name[2] = KERN_PROC_SV_NAME; 2405 name[3] = pid; 2406 len = sizeof(sv_name); 2407 error = sysctl(name, nitems(name), sv_name, &len, NULL, 0); 2408 if (error != 0 || len == 0) 2409 return (0); 2410 for (i = 0; i < sizeof(elf32_sv_names) / sizeof(*elf32_sv_names); i++) { 2411 if (strncmp(sv_name, elf32_sv_names[i], sizeof(sv_name)) == 0) 2412 return (1); 2413 } 2414 return (0); 2415 } 2416 2417 static Elf_Auxinfo * 2418 procstat_getauxv32_sysctl(pid_t pid, unsigned int *cntp) 2419 { 2420 Elf_Auxinfo *auxv; 2421 Elf32_Auxinfo *auxv32; 2422 void *ptr; 2423 size_t len; 2424 unsigned int i, count; 2425 int name[4]; 2426 2427 name[0] = CTL_KERN; 2428 name[1] = KERN_PROC; 2429 name[2] = KERN_PROC_AUXV; 2430 name[3] = pid; 2431 len = PROC_AUXV_MAX * sizeof(Elf32_Auxinfo); 2432 auxv = NULL; 2433 auxv32 = malloc(len); 2434 if (auxv32 == NULL) { 2435 warn("malloc(%zu)", len); 2436 goto out; 2437 } 2438 if (sysctl(name, nitems(name), auxv32, &len, NULL, 0) == -1) { 2439 if (errno != ESRCH && errno != EPERM) 2440 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno); 2441 goto out; 2442 } 2443 count = len / sizeof(Elf_Auxinfo); 2444 auxv = malloc(count * sizeof(Elf_Auxinfo)); 2445 if (auxv == NULL) { 2446 warn("malloc(%zu)", count * sizeof(Elf_Auxinfo)); 2447 goto out; 2448 } 2449 for (i = 0; i < count; i++) { 2450 /* 2451 * XXX: We expect that values for a_type on a 32-bit platform 2452 * are directly mapped to values on 64-bit one, which is not 2453 * necessarily true. 2454 */ 2455 auxv[i].a_type = auxv32[i].a_type; 2456 ptr = &auxv32[i].a_un; 2457 auxv[i].a_un.a_val = *((uint32_t *)ptr); 2458 } 2459 *cntp = count; 2460 out: 2461 free(auxv32); 2462 return (auxv); 2463 } 2464 #endif /* __ELF_WORD_SIZE == 64 */ 2465 2466 static Elf_Auxinfo * 2467 procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp) 2468 { 2469 Elf_Auxinfo *auxv; 2470 int name[4]; 2471 size_t len; 2472 2473 #if __ELF_WORD_SIZE == 64 2474 if (is_elf32_sysctl(pid)) 2475 return (procstat_getauxv32_sysctl(pid, cntp)); 2476 #endif 2477 name[0] = CTL_KERN; 2478 name[1] = KERN_PROC; 2479 name[2] = KERN_PROC_AUXV; 2480 name[3] = pid; 2481 len = PROC_AUXV_MAX * sizeof(Elf_Auxinfo); 2482 auxv = malloc(len); 2483 if (auxv == NULL) { 2484 warn("malloc(%zu)", len); 2485 return (NULL); 2486 } 2487 if (sysctl(name, nitems(name), auxv, &len, NULL, 0) == -1) { 2488 if (errno != ESRCH && errno != EPERM) 2489 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno); 2490 free(auxv); 2491 return (NULL); 2492 } 2493 *cntp = len / sizeof(Elf_Auxinfo); 2494 return (auxv); 2495 } 2496 2497 static Elf_Auxinfo * 2498 procstat_getauxv_core(struct procstat_core *core, unsigned int *cntp) 2499 { 2500 Elf_Auxinfo *auxv; 2501 size_t len; 2502 2503 auxv = procstat_core_get(core, PSC_TYPE_AUXV, NULL, &len); 2504 if (auxv == NULL) 2505 return (NULL); 2506 *cntp = len / sizeof(Elf_Auxinfo); 2507 return (auxv); 2508 } 2509 2510 Elf_Auxinfo * 2511 procstat_getauxv(struct procstat *procstat, struct kinfo_proc *kp, 2512 unsigned int *cntp) 2513 { 2514 switch(procstat->type) { 2515 case PROCSTAT_KVM: 2516 warnx("kvm method is not supported"); 2517 return (NULL); 2518 case PROCSTAT_SYSCTL: 2519 return (procstat_getauxv_sysctl(kp->ki_pid, cntp)); 2520 case PROCSTAT_CORE: 2521 return (procstat_getauxv_core(procstat->core, cntp)); 2522 default: 2523 warnx("unknown access method: %d", procstat->type); 2524 return (NULL); 2525 } 2526 } 2527 2528 void 2529 procstat_freeauxv(struct procstat *procstat __unused, Elf_Auxinfo *auxv) 2530 { 2531 2532 free(auxv); 2533 } 2534 2535 static struct ptrace_lwpinfo * 2536 procstat_getptlwpinfo_core(struct procstat_core *core, unsigned int *cntp) 2537 { 2538 void *buf; 2539 struct ptrace_lwpinfo *pl; 2540 unsigned int cnt; 2541 size_t len; 2542 2543 cnt = procstat_core_note_count(core, PSC_TYPE_PTLWPINFO); 2544 if (cnt == 0) 2545 return (NULL); 2546 2547 len = cnt * sizeof(*pl); 2548 buf = calloc(1, len); 2549 pl = procstat_core_get(core, PSC_TYPE_PTLWPINFO, buf, &len); 2550 if (pl == NULL) { 2551 free(buf); 2552 return (NULL); 2553 } 2554 *cntp = len / sizeof(*pl); 2555 return (pl); 2556 } 2557 2558 struct ptrace_lwpinfo * 2559 procstat_getptlwpinfo(struct procstat *procstat, unsigned int *cntp) 2560 { 2561 switch (procstat->type) { 2562 case PROCSTAT_KVM: 2563 warnx("kvm method is not supported"); 2564 return (NULL); 2565 case PROCSTAT_SYSCTL: 2566 warnx("sysctl method is not supported"); 2567 return (NULL); 2568 case PROCSTAT_CORE: 2569 return (procstat_getptlwpinfo_core(procstat->core, cntp)); 2570 default: 2571 warnx("unknown access method: %d", procstat->type); 2572 return (NULL); 2573 } 2574 } 2575 2576 void 2577 procstat_freeptlwpinfo(struct procstat *procstat __unused, 2578 struct ptrace_lwpinfo *pl) 2579 { 2580 free(pl); 2581 } 2582 2583 static struct kinfo_kstack * 2584 procstat_getkstack_sysctl(pid_t pid, int *cntp) 2585 { 2586 struct kinfo_kstack *kkstp; 2587 int error, name[4]; 2588 size_t len; 2589 2590 name[0] = CTL_KERN; 2591 name[1] = KERN_PROC; 2592 name[2] = KERN_PROC_KSTACK; 2593 name[3] = pid; 2594 2595 len = 0; 2596 error = sysctl(name, nitems(name), NULL, &len, NULL, 0); 2597 if (error < 0 && errno != ESRCH && errno != EPERM && errno != ENOENT) { 2598 warn("sysctl: kern.proc.kstack: %d", pid); 2599 return (NULL); 2600 } 2601 if (error == -1 && errno == ENOENT) { 2602 warnx("sysctl: kern.proc.kstack unavailable" 2603 " (options DDB or options STACK required in kernel)"); 2604 return (NULL); 2605 } 2606 if (error == -1) 2607 return (NULL); 2608 kkstp = malloc(len); 2609 if (kkstp == NULL) { 2610 warn("malloc(%zu)", len); 2611 return (NULL); 2612 } 2613 if (sysctl(name, nitems(name), kkstp, &len, NULL, 0) == -1) { 2614 warn("sysctl: kern.proc.pid: %d", pid); 2615 free(kkstp); 2616 return (NULL); 2617 } 2618 *cntp = len / sizeof(*kkstp); 2619 2620 return (kkstp); 2621 } 2622 2623 struct kinfo_kstack * 2624 procstat_getkstack(struct procstat *procstat, struct kinfo_proc *kp, 2625 unsigned int *cntp) 2626 { 2627 switch(procstat->type) { 2628 case PROCSTAT_KVM: 2629 warnx("kvm method is not supported"); 2630 return (NULL); 2631 case PROCSTAT_SYSCTL: 2632 return (procstat_getkstack_sysctl(kp->ki_pid, cntp)); 2633 case PROCSTAT_CORE: 2634 warnx("core method is not supported"); 2635 return (NULL); 2636 default: 2637 warnx("unknown access method: %d", procstat->type); 2638 return (NULL); 2639 } 2640 } 2641 2642 void 2643 procstat_freekstack(struct procstat *procstat __unused, 2644 struct kinfo_kstack *kkstp) 2645 { 2646 2647 free(kkstp); 2648 } 2649