libprocstat.c revision 241636
11590Srgrimes/*- 21590Srgrimes * Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org> 31590Srgrimes * Copyright (c) 1988, 1993 41590Srgrimes * The Regents of the University of California. All rights reserved. 51590Srgrimes * 61590Srgrimes * Redistribution and use in source and binary forms, with or without 71590Srgrimes * modification, are permitted provided that the following conditions 81590Srgrimes * are met: 91590Srgrimes * 1. Redistributions of source code must retain the above copyright 101590Srgrimes * notice, this list of conditions and the following disclaimer. 111590Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 121590Srgrimes * notice, this list of conditions and the following disclaimer in the 131590Srgrimes * documentation and/or other materials provided with the distribution. 141590Srgrimes * 3. All advertising materials mentioning features or use of this software 151590Srgrimes * must display the following acknowledgement: 161590Srgrimes * This product includes software developed by the University of 171590Srgrimes * California, Berkeley and its contributors. 181590Srgrimes * 4. Neither the name of the University nor the names of its contributors 191590Srgrimes * may be used to endorse or promote products derived from this software 201590Srgrimes * without specific prior written permission. 211590Srgrimes * 221590Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 231590Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 241590Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 251590Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 261590Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 271590Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 281590Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 291590Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3087675Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3187675Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3287675Smarkm * SUCH DAMAGE. 3387675Smarkm */ 341590Srgrimes 3528695Scharnier#include <sys/cdefs.h> 361590Srgrimes__FBSDID("$FreeBSD: head/lib/libprocstat/libprocstat.c 241636 2012-10-17 11:30:00Z attilio $"); 371590Srgrimes 3887675Smarkm#include <sys/param.h> 391590Srgrimes#include <sys/time.h> 401590Srgrimes#include <sys/proc.h> 4187675Smarkm#include <sys/user.h> 4228695Scharnier#include <sys/stat.h> 431590Srgrimes#include <sys/vnode.h> 441590Srgrimes#include <sys/socket.h> 451590Srgrimes#include <sys/socketvar.h> 461590Srgrimes#include <sys/domain.h> 471590Srgrimes#include <sys/protosw.h> 481590Srgrimes#include <sys/un.h> 491590Srgrimes#include <sys/unpcb.h> 501590Srgrimes#include <sys/sysctl.h> 511590Srgrimes#include <sys/tty.h> 521590Srgrimes#include <sys/filedesc.h> 5328695Scharnier#include <sys/queue.h> 5428695Scharnier#define _WANT_FILE 5573255Simp#include <sys/file.h> 5625777Sache#include <sys/conf.h> 571590Srgrimes#include <sys/mman.h> 581590Srgrimes#define _KERNEL 591590Srgrimes#include <sys/mount.h> 601590Srgrimes#include <sys/pipe.h> 611590Srgrimes#include <ufs/ufs/quota.h> 6229434Sache#include <ufs/ufs/inode.h> 631590Srgrimes#include <fs/devfs/devfs.h> 64202200Sed#include <fs/devfs/devfs_int.h> 65233269Sglebius#undef _KERNEL 66233269Sglebius#include <nfs/nfsproto.h> 671590Srgrimes#include <nfsclient/nfs.h> 6883242Sdd#include <nfsclient/nfsnode.h> 6983242Sdd 7073255Simp#include <vm/vm.h> 7173255Simp#include <vm/vm_map.h> 721590Srgrimes#include <vm/vm_object.h> 73227200Sed 7473255Simp#include <net/route.h> 7573255Simp#include <netinet/in.h> 7673255Simp#include <netinet/in_systm.h> 7773255Simp#include <netinet/ip.h> 78227200Sed#include <netinet/in_pcb.h> 79227200Sed 80227200Sed#include <assert.h> 811590Srgrimes#include <ctype.h> 82155875Scognet#include <err.h> 83200156Sed#include <fcntl.h> 84155875Scognet#include <kvm.h> 85155875Scognet#include <libutil.h> 86155875Scognet#include <limits.h> 87155875Scognet#include <paths.h> 88200156Sed#include <pwd.h> 89155875Scognet#include <stdio.h> 90155875Scognet#include <stdlib.h> 91155875Scognet#include <stddef.h> 92155875Scognet#include <string.h> 93155875Scognet#include <unistd.h> 94155875Scognet#include <netdb.h> 951590Srgrimes 9673255Simp#include <libprocstat.h> 971590Srgrimes#include "libprocstat_internal.h" 981590Srgrimes#include "common_kvm.h" 99200156Sed 10073255Simpint statfs(const char *, struct statfs *); /* XXX */ 10183082Sru 10273255Simp#define PROCSTAT_KVM 1 10373255Simp#define PROCSTAT_SYSCTL 2 10483242Sdd 10583242Sddstatic char *getmnton(kvm_t *kd, struct mount *m); 10673255Simpstatic struct filestat_list *procstat_getfiles_kvm( 1071590Srgrimes struct procstat *procstat, struct kinfo_proc *kp, int mmapped); 10825777Sachestatic struct filestat_list *procstat_getfiles_sysctl( 10925777Sache struct procstat *procstat, struct kinfo_proc *kp, int mmapped); 11073255Simpstatic int procstat_get_pipe_info_sysctl(struct filestat *fst, 1111590Srgrimes struct pipestat *pipe, char *errbuf); 1121590Srgrimesstatic int procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst, 1131590Srgrimes struct pipestat *pipe, char *errbuf); 1141590Srgrimesstatic int procstat_get_pts_info_sysctl(struct filestat *fst, 1151590Srgrimes struct ptsstat *pts, char *errbuf); 1161590Srgrimesstatic int procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst, 11773255Simp struct ptsstat *pts, char *errbuf); 11873255Simpstatic int procstat_get_shm_info_sysctl(struct filestat *fst, 11973255Simp struct shmstat *shm, char *errbuf); 12073255Simpstatic int procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst, 12173255Simp struct shmstat *shm, char *errbuf); 12273255Simpstatic int procstat_get_socket_info_sysctl(struct filestat *fst, 12373255Simp struct sockstat *sock, char *errbuf); 1241590Srgrimesstatic int procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst, 1251590Srgrimes struct sockstat *sock, char *errbuf); 12628695Scharnierstatic int to_filestat_flags(int flags); 1271590Srgrimesstatic int procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst, 1281590Srgrimes struct vnstat *vn, char *errbuf); 1291590Srgrimesstatic int procstat_get_vnode_info_sysctl(struct filestat *fst, 1301590Srgrimes struct vnstat *vn, char *errbuf); 13128695Scharnierstatic int vntype2psfsttype(int type); 1321590Srgrimes 13373255Simpvoid 13473255Simpprocstat_close(struct procstat *procstat) 13573320Simp{ 13673255Simp 13773320Simp assert(procstat); 13873320Simp if (procstat->type == PROCSTAT_KVM) 13973255Simp kvm_close(procstat->kd); 14073255Simp free(procstat); 1411590Srgrimes} 1421590Srgrimes 1431590Srgrimesstruct procstat * 1441590Srgrimesprocstat_open_sysctl(void) 1451590Srgrimes{ 146200156Sed struct procstat *procstat; 147200156Sed 1481590Srgrimes procstat = calloc(1, sizeof(*procstat)); 149200156Sed if (procstat == NULL) { 150155875Scognet warn("malloc()"); 15173255Simp return (NULL); 15283082Sru } 153200156Sed procstat->type = PROCSTAT_SYSCTL; 15473255Simp return (procstat); 15573255Simp} 15673255Simp 15787675Smarkmstruct procstat * 15873255Simpprocstat_open_kvm(const char *nlistf, const char *memf) 15973255Simp{ 16073255Simp struct procstat *procstat; 16183082Sru kvm_t *kd; 16283082Sru char buf[_POSIX2_LINE_MAX]; 163200156Sed 16483082Sru procstat = calloc(1, sizeof(*procstat)); 16583082Sru if (procstat == NULL) { 16683082Sru warn("malloc()"); 16783082Sru return (NULL); 16883082Sru } 16973255Simp kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf); 17073255Simp if (kd == NULL) { 17173255Simp warnx("kvm_openfiles(): %s", buf); 17273255Simp free(procstat); 173200156Sed return (NULL); 17428695Scharnier } 1751590Srgrimes procstat->type = PROCSTAT_KVM; 1761590Srgrimes procstat->kd = kd; 1771590Srgrimes return (procstat); 1781590Srgrimes} 17928695Scharnier 180201224Sedstruct kinfo_proc * 18128695Scharnierprocstat_getprocs(struct procstat *procstat, int what, int arg, 18273320Simp unsigned int *count) 18328695Scharnier{ 18428695Scharnier struct kinfo_proc *p0, *p; 18528695Scharnier size_t len; 1861590Srgrimes int name[4]; 18773255Simp int cnt; 1881590Srgrimes int error; 18973255Simp 190233269Sglebius assert(procstat); 1911590Srgrimes assert(count); 1921590Srgrimes p = NULL; 1931590Srgrimes if (procstat->type == PROCSTAT_KVM) { 19429434Sache *count = 0; 1951590Srgrimes p0 = kvm_getprocs(procstat->kd, what, arg, &cnt); 1961590Srgrimes if (p0 == NULL || cnt <= 0) 197233269Sglebius return (NULL); 198233269Sglebius *count = cnt; 19987675Smarkm len = *count * sizeof(*p); 20069231Skris p = malloc(len); 20176367Skris if (p == NULL) { 2021590Srgrimes warnx("malloc(%zu)", len); 20369231Skris goto fail; 20469231Skris } 20569231Skris bcopy(p0, p, len); 2061590Srgrimes return (p); 2071590Srgrimes } else if (procstat->type == PROCSTAT_SYSCTL) { 2081590Srgrimes len = 0; 20969231Skris name[0] = CTL_KERN; 21069231Skris name[1] = KERN_PROC; 21166557Sn_hibma name[2] = what; 21266557Sn_hibma name[3] = arg; 2131590Srgrimes error = sysctl(name, 4, NULL, &len, NULL, 0); 2141590Srgrimes if (error < 0 && errno != EPERM) { 2151590Srgrimes warn("sysctl(kern.proc)"); 2161590Srgrimes goto fail; 2171590Srgrimes } 2181590Srgrimes if (len == 0) { 2191590Srgrimes warnx("no processes?"); 2201590Srgrimes goto fail; 2211590Srgrimes } 2221590Srgrimes p = malloc(len); 2231590Srgrimes if (p == NULL) { 2241590Srgrimes warnx("malloc(%zu)", len); 2251590Srgrimes goto fail; 226233269Sglebius } 227233269Sglebius error = sysctl(name, 4, p, &len, NULL, 0); 228233269Sglebius if (error < 0 && errno != EPERM) { 2291590Srgrimes warn("sysctl(kern.proc)"); 230233269Sglebius goto fail; 231233269Sglebius } 232233269Sglebius /* Perform simple consistency checks. */ 23363909Sasmodai if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) { 234233269Sglebius warnx("kinfo_proc structure size mismatch"); 2351590Srgrimes goto fail; 236233269Sglebius } 2371590Srgrimes *count = len / sizeof(*p); 23876367Skris return (p); 23976367Skris } else { 24076367Skris warnx("unknown access method: %d", procstat->type); 241233269Sglebius return (NULL); 24276367Skris } 243241848Seadlerfail: 244241848Seadler if (p) 24576367Skris free(p); 246223940Sobrien return (NULL); 247233269Sglebius} 248233269Sglebius 249233269Sglebiusvoid 250233269Sglebiusprocstat_freeprocs(struct procstat *procstat __unused, struct kinfo_proc *p) 25150776Sdbaker{ 252175346Sdas 253233269Sglebius if (p != NULL) 2541590Srgrimes free(p); 255233269Sglebius p = NULL; 256233269Sglebius} 257233269Sglebius 258175346Sdasstruct filestat_list * 259175346Sdasprocstat_getfiles(struct procstat *procstat, struct kinfo_proc *kp, int mmapped) 260175346Sdas{ 261233269Sglebius 262233269Sglebius if (procstat->type == PROCSTAT_SYSCTL) 2631590Srgrimes return (procstat_getfiles_sysctl(procstat, kp, mmapped)); 264175346Sdas else if (procstat->type == PROCSTAT_KVM) 265233269Sglebius return (procstat_getfiles_kvm(procstat, kp, mmapped)); 266233269Sglebius else 267233269Sglebius return (NULL); 268233269Sglebius} 269233269Sglebius 270233269Sglebiusvoid 27129434Sacheprocstat_freefiles(struct procstat *procstat, struct filestat_list *head) 272233269Sglebius{ 273233269Sglebius struct filestat *fst, *tmp; 27429434Sache 27529434Sache STAILQ_FOREACH_SAFE(fst, head, next, tmp) { 27624729Sache if (fst->fs_path != NULL) 277233269Sglebius free(fst->fs_path); 27829434Sache free(fst); 2791590Srgrimes } 280175346Sdas free(head); 281233269Sglebius if (procstat->vmentries != NULL) { 2821590Srgrimes free(procstat->vmentries); 2831590Srgrimes procstat->vmentries = NULL; 28428695Scharnier } 28569231Skris if (procstat->files != NULL) { 2861590Srgrimes free(procstat->files); 28728695Scharnier procstat->files = NULL; 28869231Skris } 28987675Smarkm} 29069231Skris 2911590Srgrimesstatic struct filestat * 2921590Srgrimesfilestat_new_entry(void *typedep, int type, int fd, int fflags, int uflags, 293 int refcount, off_t offset, char *path, cap_rights_t cap_rights) 294{ 295 struct filestat *entry; 296 297 entry = calloc(1, sizeof(*entry)); 298 if (entry == NULL) { 299 warn("malloc()"); 300 return (NULL); 301 } 302 entry->fs_typedep = typedep; 303 entry->fs_fflags = fflags; 304 entry->fs_uflags = uflags; 305 entry->fs_fd = fd; 306 entry->fs_type = type; 307 entry->fs_ref_count = refcount; 308 entry->fs_offset = offset; 309 entry->fs_path = path; 310 entry->fs_cap_rights = cap_rights; 311 return (entry); 312} 313 314static struct vnode * 315getctty(kvm_t *kd, struct kinfo_proc *kp) 316{ 317 struct pgrp pgrp; 318 struct proc proc; 319 struct session sess; 320 int error; 321 322 assert(kp); 323 error = kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc, 324 sizeof(proc)); 325 if (error == 0) { 326 warnx("can't read proc struct at %p for pid %d", 327 kp->ki_paddr, kp->ki_pid); 328 return (NULL); 329 } 330 if (proc.p_pgrp == NULL) 331 return (NULL); 332 error = kvm_read_all(kd, (unsigned long)proc.p_pgrp, &pgrp, 333 sizeof(pgrp)); 334 if (error == 0) { 335 warnx("can't read pgrp struct at %p for pid %d", 336 proc.p_pgrp, kp->ki_pid); 337 return (NULL); 338 } 339 error = kvm_read_all(kd, (unsigned long)pgrp.pg_session, &sess, 340 sizeof(sess)); 341 if (error == 0) { 342 warnx("can't read session struct at %p for pid %d", 343 pgrp.pg_session, kp->ki_pid); 344 return (NULL); 345 } 346 return (sess.s_ttyvp); 347} 348 349static struct filestat_list * 350procstat_getfiles_kvm(struct procstat *procstat, struct kinfo_proc *kp, int mmapped) 351{ 352 struct file file; 353 struct filedesc filed; 354 struct vm_map_entry vmentry; 355 struct vm_object object; 356 struct vmspace vmspace; 357 vm_map_entry_t entryp; 358 vm_map_t map; 359 vm_object_t objp; 360 struct vnode *vp; 361 struct file **ofiles; 362 struct filestat *entry; 363 struct filestat_list *head; 364 kvm_t *kd; 365 void *data; 366 int i, fflags; 367 int prot, type; 368 unsigned int nfiles; 369 370 assert(procstat); 371 kd = procstat->kd; 372 if (kd == NULL) 373 return (NULL); 374 if (kp->ki_fd == NULL) 375 return (NULL); 376 if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &filed, 377 sizeof(filed))) { 378 warnx("can't read filedesc at %p", (void *)kp->ki_fd); 379 return (NULL); 380 } 381 382 /* 383 * Allocate list head. 384 */ 385 head = malloc(sizeof(*head)); 386 if (head == NULL) 387 return (NULL); 388 STAILQ_INIT(head); 389 390 /* root directory vnode, if one. */ 391 if (filed.fd_rdir) { 392 entry = filestat_new_entry(filed.fd_rdir, PS_FST_TYPE_VNODE, -1, 393 PS_FST_FFLAG_READ, PS_FST_UFLAG_RDIR, 0, 0, NULL, 0); 394 if (entry != NULL) 395 STAILQ_INSERT_TAIL(head, entry, next); 396 } 397 /* current working directory vnode. */ 398 if (filed.fd_cdir) { 399 entry = filestat_new_entry(filed.fd_cdir, PS_FST_TYPE_VNODE, -1, 400 PS_FST_FFLAG_READ, PS_FST_UFLAG_CDIR, 0, 0, NULL, 0); 401 if (entry != NULL) 402 STAILQ_INSERT_TAIL(head, entry, next); 403 } 404 /* jail root, if any. */ 405 if (filed.fd_jdir) { 406 entry = filestat_new_entry(filed.fd_jdir, PS_FST_TYPE_VNODE, -1, 407 PS_FST_FFLAG_READ, PS_FST_UFLAG_JAIL, 0, 0, NULL, 0); 408 if (entry != NULL) 409 STAILQ_INSERT_TAIL(head, entry, next); 410 } 411 /* ktrace vnode, if one */ 412 if (kp->ki_tracep) { 413 entry = filestat_new_entry(kp->ki_tracep, PS_FST_TYPE_VNODE, -1, 414 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE, 415 PS_FST_UFLAG_TRACE, 0, 0, NULL, 0); 416 if (entry != NULL) 417 STAILQ_INSERT_TAIL(head, entry, next); 418 } 419 /* text vnode, if one */ 420 if (kp->ki_textvp) { 421 entry = filestat_new_entry(kp->ki_textvp, PS_FST_TYPE_VNODE, -1, 422 PS_FST_FFLAG_READ, PS_FST_UFLAG_TEXT, 0, 0, NULL, 0); 423 if (entry != NULL) 424 STAILQ_INSERT_TAIL(head, entry, next); 425 } 426 /* Controlling terminal. */ 427 if ((vp = getctty(kd, kp)) != NULL) { 428 entry = filestat_new_entry(vp, PS_FST_TYPE_VNODE, -1, 429 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE, 430 PS_FST_UFLAG_CTTY, 0, 0, NULL, 0); 431 if (entry != NULL) 432 STAILQ_INSERT_TAIL(head, entry, next); 433 } 434 435 nfiles = filed.fd_lastfile + 1; 436 ofiles = malloc(nfiles * sizeof(struct file *)); 437 if (ofiles == NULL) { 438 warn("malloc(%zu)", nfiles * sizeof(struct file *)); 439 goto do_mmapped; 440 } 441 if (!kvm_read_all(kd, (unsigned long)filed.fd_ofiles, ofiles, 442 nfiles * sizeof(struct file *))) { 443 warnx("cannot read file structures at %p", 444 (void *)filed.fd_ofiles); 445 free(ofiles); 446 goto do_mmapped; 447 } 448 for (i = 0; i <= filed.fd_lastfile; i++) { 449 if (ofiles[i] == NULL) 450 continue; 451 if (!kvm_read_all(kd, (unsigned long)ofiles[i], &file, 452 sizeof(struct file))) { 453 warnx("can't read file %d at %p", i, 454 (void *)ofiles[i]); 455 continue; 456 } 457 switch (file.f_type) { 458 case DTYPE_VNODE: 459 type = PS_FST_TYPE_VNODE; 460 data = file.f_vnode; 461 break; 462 case DTYPE_SOCKET: 463 type = PS_FST_TYPE_SOCKET; 464 data = file.f_data; 465 break; 466 case DTYPE_PIPE: 467 type = PS_FST_TYPE_PIPE; 468 data = file.f_data; 469 break; 470 case DTYPE_FIFO: 471 type = PS_FST_TYPE_FIFO; 472 data = file.f_vnode; 473 break; 474#ifdef DTYPE_PTS 475 case DTYPE_PTS: 476 type = PS_FST_TYPE_PTS; 477 data = file.f_data; 478 break; 479#endif 480 case DTYPE_SHM: 481 type = PS_FST_TYPE_SHM; 482 data = file.f_data; 483 break; 484 default: 485 continue; 486 } 487 /* XXXRW: No capability rights support for kvm yet. */ 488 entry = filestat_new_entry(data, type, i, 489 to_filestat_flags(file.f_flag), 0, 0, 0, NULL, 0); 490 if (entry != NULL) 491 STAILQ_INSERT_TAIL(head, entry, next); 492 } 493 free(ofiles); 494 495do_mmapped: 496 497 /* 498 * Process mmapped files if requested. 499 */ 500 if (mmapped) { 501 if (!kvm_read_all(kd, (unsigned long)kp->ki_vmspace, &vmspace, 502 sizeof(vmspace))) { 503 warnx("can't read vmspace at %p", 504 (void *)kp->ki_vmspace); 505 goto exit; 506 } 507 map = &vmspace.vm_map; 508 509 for (entryp = map->header.next; 510 entryp != &kp->ki_vmspace->vm_map.header; 511 entryp = vmentry.next) { 512 if (!kvm_read_all(kd, (unsigned long)entryp, &vmentry, 513 sizeof(vmentry))) { 514 warnx("can't read vm_map_entry at %p", 515 (void *)entryp); 516 continue; 517 } 518 if (vmentry.eflags & MAP_ENTRY_IS_SUB_MAP) 519 continue; 520 if ((objp = vmentry.object.vm_object) == NULL) 521 continue; 522 for (; objp; objp = object.backing_object) { 523 if (!kvm_read_all(kd, (unsigned long)objp, 524 &object, sizeof(object))) { 525 warnx("can't read vm_object at %p", 526 (void *)objp); 527 break; 528 } 529 } 530 531 /* We want only vnode objects. */ 532 if (object.type != OBJT_VNODE) 533 continue; 534 535 prot = vmentry.protection; 536 fflags = 0; 537 if (prot & VM_PROT_READ) 538 fflags = PS_FST_FFLAG_READ; 539 if ((vmentry.eflags & MAP_ENTRY_COW) == 0 && 540 prot & VM_PROT_WRITE) 541 fflags |= PS_FST_FFLAG_WRITE; 542 543 /* 544 * Create filestat entry. 545 */ 546 entry = filestat_new_entry(object.handle, 547 PS_FST_TYPE_VNODE, -1, fflags, 548 PS_FST_UFLAG_MMAP, 0, 0, NULL, 0); 549 if (entry != NULL) 550 STAILQ_INSERT_TAIL(head, entry, next); 551 } 552 } 553exit: 554 return (head); 555} 556 557/* 558 * kinfo types to filestat translation. 559 */ 560static int 561kinfo_type2fst(int kftype) 562{ 563 static struct { 564 int kf_type; 565 int fst_type; 566 } kftypes2fst[] = { 567 { KF_TYPE_CRYPTO, PS_FST_TYPE_CRYPTO }, 568 { KF_TYPE_FIFO, PS_FST_TYPE_FIFO }, 569 { KF_TYPE_KQUEUE, PS_FST_TYPE_KQUEUE }, 570 { KF_TYPE_MQUEUE, PS_FST_TYPE_MQUEUE }, 571 { KF_TYPE_NONE, PS_FST_TYPE_NONE }, 572 { KF_TYPE_PIPE, PS_FST_TYPE_PIPE }, 573 { KF_TYPE_PTS, PS_FST_TYPE_PTS }, 574 { KF_TYPE_SEM, PS_FST_TYPE_SEM }, 575 { KF_TYPE_SHM, PS_FST_TYPE_SHM }, 576 { KF_TYPE_SOCKET, PS_FST_TYPE_SOCKET }, 577 { KF_TYPE_VNODE, PS_FST_TYPE_VNODE }, 578 { KF_TYPE_UNKNOWN, PS_FST_TYPE_UNKNOWN } 579 }; 580#define NKFTYPES (sizeof(kftypes2fst) / sizeof(*kftypes2fst)) 581 unsigned int i; 582 583 for (i = 0; i < NKFTYPES; i++) 584 if (kftypes2fst[i].kf_type == kftype) 585 break; 586 if (i == NKFTYPES) 587 return (PS_FST_TYPE_UNKNOWN); 588 return (kftypes2fst[i].fst_type); 589} 590 591/* 592 * kinfo flags to filestat translation. 593 */ 594static int 595kinfo_fflags2fst(int kfflags) 596{ 597 static struct { 598 int kf_flag; 599 int fst_flag; 600 } kfflags2fst[] = { 601 { KF_FLAG_APPEND, PS_FST_FFLAG_APPEND }, 602 { KF_FLAG_ASYNC, PS_FST_FFLAG_ASYNC }, 603 { KF_FLAG_CAPABILITY, PS_FST_FFLAG_CAPABILITY }, 604 { KF_FLAG_CREAT, PS_FST_FFLAG_CREAT }, 605 { KF_FLAG_DIRECT, PS_FST_FFLAG_DIRECT }, 606 { KF_FLAG_EXCL, PS_FST_FFLAG_EXCL }, 607 { KF_FLAG_EXEC, PS_FST_FFLAG_EXEC }, 608 { KF_FLAG_EXLOCK, PS_FST_FFLAG_EXLOCK }, 609 { KF_FLAG_FSYNC, PS_FST_FFLAG_SYNC }, 610 { KF_FLAG_HASLOCK, PS_FST_FFLAG_HASLOCK }, 611 { KF_FLAG_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW }, 612 { KF_FLAG_NONBLOCK, PS_FST_FFLAG_NONBLOCK }, 613 { KF_FLAG_READ, PS_FST_FFLAG_READ }, 614 { KF_FLAG_SHLOCK, PS_FST_FFLAG_SHLOCK }, 615 { KF_FLAG_TRUNC, PS_FST_FFLAG_TRUNC }, 616 { KF_FLAG_WRITE, PS_FST_FFLAG_WRITE } 617 }; 618#define NKFFLAGS (sizeof(kfflags2fst) / sizeof(*kfflags2fst)) 619 unsigned int i; 620 int flags; 621 622 flags = 0; 623 for (i = 0; i < NKFFLAGS; i++) 624 if ((kfflags & kfflags2fst[i].kf_flag) != 0) 625 flags |= kfflags2fst[i].fst_flag; 626 return (flags); 627} 628 629static int 630kinfo_uflags2fst(int fd) 631{ 632 633 switch (fd) { 634 case KF_FD_TYPE_CTTY: 635 return (PS_FST_UFLAG_CTTY); 636 case KF_FD_TYPE_CWD: 637 return (PS_FST_UFLAG_CDIR); 638 case KF_FD_TYPE_JAIL: 639 return (PS_FST_UFLAG_JAIL); 640 case KF_FD_TYPE_TEXT: 641 return (PS_FST_UFLAG_TEXT); 642 case KF_FD_TYPE_TRACE: 643 return (PS_FST_UFLAG_TRACE); 644 case KF_FD_TYPE_ROOT: 645 return (PS_FST_UFLAG_RDIR); 646 } 647 return (0); 648} 649 650static struct filestat_list * 651procstat_getfiles_sysctl(struct procstat *procstat, struct kinfo_proc *kp, int mmapped) 652{ 653 struct kinfo_file *kif, *files; 654 struct kinfo_vmentry *kve, *vmentries; 655 struct filestat_list *head; 656 struct filestat *entry; 657 char *path; 658 off_t offset; 659 int cnt, fd, fflags; 660 int i, type, uflags; 661 int refcount; 662 cap_rights_t cap_rights; 663 664 assert(kp); 665 if (kp->ki_fd == NULL) 666 return (NULL); 667 668 files = kinfo_getfile(kp->ki_pid, &cnt); 669 if (files == NULL && errno != EPERM) { 670 warn("kinfo_getfile()"); 671 return (NULL); 672 } 673 procstat->files = files; 674 675 /* 676 * Allocate list head. 677 */ 678 head = malloc(sizeof(*head)); 679 if (head == NULL) 680 return (NULL); 681 STAILQ_INIT(head); 682 for (i = 0; i < cnt; i++) { 683 kif = &files[i]; 684 685 type = kinfo_type2fst(kif->kf_type); 686 fd = kif->kf_fd >= 0 ? kif->kf_fd : -1; 687 fflags = kinfo_fflags2fst(kif->kf_flags); 688 uflags = kinfo_uflags2fst(kif->kf_fd); 689 refcount = kif->kf_ref_count; 690 offset = kif->kf_offset; 691 if (*kif->kf_path != '\0') 692 path = strdup(kif->kf_path); 693 else 694 path = NULL; 695 cap_rights = kif->kf_cap_rights; 696 697 /* 698 * Create filestat entry. 699 */ 700 entry = filestat_new_entry(kif, type, fd, fflags, uflags, 701 refcount, offset, path, cap_rights); 702 if (entry != NULL) 703 STAILQ_INSERT_TAIL(head, entry, next); 704 } 705 if (mmapped != 0) { 706 vmentries = kinfo_getvmmap(kp->ki_pid, &cnt); 707 procstat->vmentries = vmentries; 708 if (vmentries == NULL || cnt == 0) 709 goto fail; 710 for (i = 0; i < cnt; i++) { 711 kve = &vmentries[i]; 712 if (kve->kve_type != KVME_TYPE_VNODE) 713 continue; 714 fflags = 0; 715 if (kve->kve_protection & KVME_PROT_READ) 716 fflags = PS_FST_FFLAG_READ; 717 if ((kve->kve_flags & KVME_FLAG_COW) == 0 && 718 kve->kve_protection & KVME_PROT_WRITE) 719 fflags |= PS_FST_FFLAG_WRITE; 720 offset = kve->kve_offset; 721 refcount = kve->kve_ref_count; 722 if (*kve->kve_path != '\0') 723 path = strdup(kve->kve_path); 724 else 725 path = NULL; 726 entry = filestat_new_entry(kve, PS_FST_TYPE_VNODE, -1, 727 fflags, PS_FST_UFLAG_MMAP, refcount, offset, path, 728 0); 729 if (entry != NULL) 730 STAILQ_INSERT_TAIL(head, entry, next); 731 } 732 } 733fail: 734 return (head); 735} 736 737int 738procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst, 739 struct pipestat *ps, char *errbuf) 740{ 741 742 assert(ps); 743 if (procstat->type == PROCSTAT_KVM) { 744 return (procstat_get_pipe_info_kvm(procstat->kd, fst, ps, 745 errbuf)); 746 } else if (procstat->type == PROCSTAT_SYSCTL) { 747 return (procstat_get_pipe_info_sysctl(fst, ps, errbuf)); 748 } else { 749 warnx("unknown access method: %d", procstat->type); 750 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 751 return (1); 752 } 753} 754 755static int 756procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst, 757 struct pipestat *ps, char *errbuf) 758{ 759 struct pipe pi; 760 void *pipep; 761 762 assert(kd); 763 assert(ps); 764 assert(fst); 765 bzero(ps, sizeof(*ps)); 766 pipep = fst->fs_typedep; 767 if (pipep == NULL) 768 goto fail; 769 if (!kvm_read_all(kd, (unsigned long)pipep, &pi, sizeof(struct pipe))) { 770 warnx("can't read pipe at %p", (void *)pipep); 771 goto fail; 772 } 773 ps->addr = (uintptr_t)pipep; 774 ps->peer = (uintptr_t)pi.pipe_peer; 775 ps->buffer_cnt = pi.pipe_buffer.cnt; 776 return (0); 777 778fail: 779 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 780 return (1); 781} 782 783static int 784procstat_get_pipe_info_sysctl(struct filestat *fst, struct pipestat *ps, 785 char *errbuf __unused) 786{ 787 struct kinfo_file *kif; 788 789 assert(ps); 790 assert(fst); 791 bzero(ps, sizeof(*ps)); 792 kif = fst->fs_typedep; 793 if (kif == NULL) 794 return (1); 795 ps->addr = kif->kf_un.kf_pipe.kf_pipe_addr; 796 ps->peer = kif->kf_un.kf_pipe.kf_pipe_peer; 797 ps->buffer_cnt = kif->kf_un.kf_pipe.kf_pipe_buffer_cnt; 798 return (0); 799} 800 801int 802procstat_get_pts_info(struct procstat *procstat, struct filestat *fst, 803 struct ptsstat *pts, char *errbuf) 804{ 805 806 assert(pts); 807 if (procstat->type == PROCSTAT_KVM) { 808 return (procstat_get_pts_info_kvm(procstat->kd, fst, pts, 809 errbuf)); 810 } else if (procstat->type == PROCSTAT_SYSCTL) { 811 return (procstat_get_pts_info_sysctl(fst, pts, errbuf)); 812 } else { 813 warnx("unknown access method: %d", procstat->type); 814 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 815 return (1); 816 } 817} 818 819static int 820procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst, 821 struct ptsstat *pts, char *errbuf) 822{ 823 struct tty tty; 824 void *ttyp; 825 826 assert(kd); 827 assert(pts); 828 assert(fst); 829 bzero(pts, sizeof(*pts)); 830 ttyp = fst->fs_typedep; 831 if (ttyp == NULL) 832 goto fail; 833 if (!kvm_read_all(kd, (unsigned long)ttyp, &tty, sizeof(struct tty))) { 834 warnx("can't read tty at %p", (void *)ttyp); 835 goto fail; 836 } 837 pts->dev = dev2udev(kd, tty.t_dev); 838 (void)kdevtoname(kd, tty.t_dev, pts->devname); 839 return (0); 840 841fail: 842 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 843 return (1); 844} 845 846static int 847procstat_get_pts_info_sysctl(struct filestat *fst, struct ptsstat *pts, 848 char *errbuf __unused) 849{ 850 struct kinfo_file *kif; 851 852 assert(pts); 853 assert(fst); 854 bzero(pts, sizeof(*pts)); 855 kif = fst->fs_typedep; 856 if (kif == NULL) 857 return (0); 858 pts->dev = kif->kf_un.kf_pts.kf_pts_dev; 859 strlcpy(pts->devname, kif->kf_path, sizeof(pts->devname)); 860 return (0); 861} 862 863int 864procstat_get_shm_info(struct procstat *procstat, struct filestat *fst, 865 struct shmstat *shm, char *errbuf) 866{ 867 868 assert(shm); 869 if (procstat->type == PROCSTAT_KVM) { 870 return (procstat_get_shm_info_kvm(procstat->kd, fst, shm, 871 errbuf)); 872 } else if (procstat->type == PROCSTAT_SYSCTL) { 873 return (procstat_get_shm_info_sysctl(fst, shm, errbuf)); 874 } else { 875 warnx("unknown access method: %d", procstat->type); 876 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 877 return (1); 878 } 879} 880 881static int 882procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst, 883 struct shmstat *shm, char *errbuf) 884{ 885 struct shmfd shmfd; 886 void *shmfdp; 887 char *path; 888 int i; 889 890 assert(kd); 891 assert(shm); 892 assert(fst); 893 bzero(shm, sizeof(*shm)); 894 shmfdp = fst->fs_typedep; 895 if (shmfdp == NULL) 896 goto fail; 897 if (!kvm_read_all(kd, (unsigned long)shmfdp, &shmfd, 898 sizeof(struct shmfd))) { 899 warnx("can't read shmfd at %p", (void *)shmfdp); 900 goto fail; 901 } 902 shm->mode = S_IFREG | shmfd.shm_mode; 903 shm->size = shmfd.shm_size; 904 if (fst->fs_path == NULL && shmfd.shm_path != NULL) { 905 path = malloc(MAXPATHLEN); 906 for (i = 0; i < MAXPATHLEN - 1; i++) { 907 if (!kvm_read_all(kd, (unsigned long)shmfd.shm_path + i, 908 path + i, 1)) 909 break; 910 if (path[i] == '\0') 911 break; 912 } 913 path[i] = '\0'; 914 if (i == 0) 915 free(path); 916 else 917 fst->fs_path = path; 918 } 919 return (0); 920 921fail: 922 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 923 return (1); 924} 925 926static int 927procstat_get_shm_info_sysctl(struct filestat *fst, struct shmstat *shm, 928 char *errbuf __unused) 929{ 930 struct kinfo_file *kif; 931 932 assert(shm); 933 assert(fst); 934 bzero(shm, sizeof(*shm)); 935 kif = fst->fs_typedep; 936 if (kif == NULL) 937 return (0); 938 shm->size = kif->kf_un.kf_file.kf_file_size; 939 shm->mode = kif->kf_un.kf_file.kf_file_mode; 940 return (0); 941} 942 943int 944procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst, 945 struct vnstat *vn, char *errbuf) 946{ 947 948 assert(vn); 949 if (procstat->type == PROCSTAT_KVM) { 950 return (procstat_get_vnode_info_kvm(procstat->kd, fst, vn, 951 errbuf)); 952 } else if (procstat->type == PROCSTAT_SYSCTL) { 953 return (procstat_get_vnode_info_sysctl(fst, vn, errbuf)); 954 } else { 955 warnx("unknown access method: %d", procstat->type); 956 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 957 return (1); 958 } 959} 960 961static int 962procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst, 963 struct vnstat *vn, char *errbuf) 964{ 965 /* Filesystem specific handlers. */ 966 #define FSTYPE(fst) {#fst, fst##_filestat} 967 struct { 968 const char *tag; 969 int (*handler)(kvm_t *kd, struct vnode *vp, 970 struct vnstat *vn); 971 } fstypes[] = { 972 FSTYPE(devfs), 973 FSTYPE(isofs), 974 FSTYPE(msdosfs), 975 FSTYPE(nfs), 976 FSTYPE(smbfs), 977 FSTYPE(udf), 978 FSTYPE(ufs), 979#ifdef LIBPROCSTAT_ZFS 980 FSTYPE(zfs), 981#endif 982 }; 983#define NTYPES (sizeof(fstypes) / sizeof(*fstypes)) 984 struct vnode vnode; 985 char tagstr[12]; 986 void *vp; 987 int error, found; 988 unsigned int i; 989 990 assert(kd); 991 assert(vn); 992 assert(fst); 993 vp = fst->fs_typedep; 994 if (vp == NULL) 995 goto fail; 996 error = kvm_read_all(kd, (unsigned long)vp, &vnode, sizeof(vnode)); 997 if (error == 0) { 998 warnx("can't read vnode at %p", (void *)vp); 999 goto fail; 1000 } 1001 bzero(vn, sizeof(*vn)); 1002 vn->vn_type = vntype2psfsttype(vnode.v_type); 1003 if (vnode.v_type == VNON || vnode.v_type == VBAD) 1004 return (0); 1005 error = kvm_read_all(kd, (unsigned long)vnode.v_tag, tagstr, 1006 sizeof(tagstr)); 1007 if (error == 0) { 1008 warnx("can't read v_tag at %p", (void *)vp); 1009 goto fail; 1010 } 1011 tagstr[sizeof(tagstr) - 1] = '\0'; 1012 1013 /* 1014 * Find appropriate handler. 1015 */ 1016 for (i = 0, found = 0; i < NTYPES; i++) 1017 if (!strcmp(fstypes[i].tag, tagstr)) { 1018 if (fstypes[i].handler(kd, &vnode, vn) != 0) { 1019 goto fail; 1020 } 1021 break; 1022 } 1023 if (i == NTYPES) { 1024 snprintf(errbuf, _POSIX2_LINE_MAX, "?(%s)", tagstr); 1025 return (1); 1026 } 1027 vn->vn_mntdir = getmnton(kd, vnode.v_mount); 1028 if ((vnode.v_type == VBLK || vnode.v_type == VCHR) && 1029 vnode.v_rdev != NULL){ 1030 vn->vn_dev = dev2udev(kd, vnode.v_rdev); 1031 (void)kdevtoname(kd, vnode.v_rdev, vn->vn_devname); 1032 } else { 1033 vn->vn_dev = -1; 1034 } 1035 return (0); 1036 1037fail: 1038 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1039 return (1); 1040} 1041 1042/* 1043 * kinfo vnode type to filestat translation. 1044 */ 1045static int 1046kinfo_vtype2fst(int kfvtype) 1047{ 1048 static struct { 1049 int kf_vtype; 1050 int fst_vtype; 1051 } kfvtypes2fst[] = { 1052 { KF_VTYPE_VBAD, PS_FST_VTYPE_VBAD }, 1053 { KF_VTYPE_VBLK, PS_FST_VTYPE_VBLK }, 1054 { KF_VTYPE_VCHR, PS_FST_VTYPE_VCHR }, 1055 { KF_VTYPE_VDIR, PS_FST_VTYPE_VDIR }, 1056 { KF_VTYPE_VFIFO, PS_FST_VTYPE_VFIFO }, 1057 { KF_VTYPE_VLNK, PS_FST_VTYPE_VLNK }, 1058 { KF_VTYPE_VNON, PS_FST_VTYPE_VNON }, 1059 { KF_VTYPE_VREG, PS_FST_VTYPE_VREG }, 1060 { KF_VTYPE_VSOCK, PS_FST_VTYPE_VSOCK } 1061 }; 1062#define NKFVTYPES (sizeof(kfvtypes2fst) / sizeof(*kfvtypes2fst)) 1063 unsigned int i; 1064 1065 for (i = 0; i < NKFVTYPES; i++) 1066 if (kfvtypes2fst[i].kf_vtype == kfvtype) 1067 break; 1068 if (i == NKFVTYPES) 1069 return (PS_FST_VTYPE_UNKNOWN); 1070 return (kfvtypes2fst[i].fst_vtype); 1071} 1072 1073static int 1074procstat_get_vnode_info_sysctl(struct filestat *fst, struct vnstat *vn, 1075 char *errbuf) 1076{ 1077 struct statfs stbuf; 1078 struct kinfo_file *kif; 1079 struct kinfo_vmentry *kve; 1080 uint64_t fileid; 1081 uint64_t size; 1082 char *name, *path; 1083 uint32_t fsid; 1084 uint16_t mode; 1085 uint32_t rdev; 1086 int vntype; 1087 int status; 1088 1089 assert(fst); 1090 assert(vn); 1091 bzero(vn, sizeof(*vn)); 1092 if (fst->fs_typedep == NULL) 1093 return (1); 1094 if (fst->fs_uflags & PS_FST_UFLAG_MMAP) { 1095 kve = fst->fs_typedep; 1096 fileid = kve->kve_vn_fileid; 1097 fsid = kve->kve_vn_fsid; 1098 mode = kve->kve_vn_mode; 1099 path = kve->kve_path; 1100 rdev = kve->kve_vn_rdev; 1101 size = kve->kve_vn_size; 1102 vntype = kinfo_vtype2fst(kve->kve_vn_type); 1103 status = kve->kve_status; 1104 } else { 1105 kif = fst->fs_typedep; 1106 fileid = kif->kf_un.kf_file.kf_file_fileid; 1107 fsid = kif->kf_un.kf_file.kf_file_fsid; 1108 mode = kif->kf_un.kf_file.kf_file_mode; 1109 path = kif->kf_path; 1110 rdev = kif->kf_un.kf_file.kf_file_rdev; 1111 size = kif->kf_un.kf_file.kf_file_size; 1112 vntype = kinfo_vtype2fst(kif->kf_vnode_type); 1113 status = kif->kf_status; 1114 } 1115 vn->vn_type = vntype; 1116 if (vntype == PS_FST_VTYPE_VNON || vntype == PS_FST_VTYPE_VBAD) 1117 return (0); 1118 if ((status & KF_ATTR_VALID) == 0) { 1119 snprintf(errbuf, _POSIX2_LINE_MAX, "? (no info available)"); 1120 return (1); 1121 } 1122 if (path && *path) { 1123 statfs(path, &stbuf); 1124 vn->vn_mntdir = strdup(stbuf.f_mntonname); 1125 } else 1126 vn->vn_mntdir = strdup("-"); 1127 vn->vn_dev = rdev; 1128 if (vntype == PS_FST_VTYPE_VBLK) { 1129 name = devname(rdev, S_IFBLK); 1130 if (name != NULL) 1131 strlcpy(vn->vn_devname, name, 1132 sizeof(vn->vn_devname)); 1133 } else if (vntype == PS_FST_VTYPE_VCHR) { 1134 name = devname(vn->vn_dev, S_IFCHR); 1135 if (name != NULL) 1136 strlcpy(vn->vn_devname, name, 1137 sizeof(vn->vn_devname)); 1138 } 1139 vn->vn_fsid = fsid; 1140 vn->vn_fileid = fileid; 1141 vn->vn_size = size; 1142 vn->vn_mode = mode; 1143 return (0); 1144} 1145 1146int 1147procstat_get_socket_info(struct procstat *procstat, struct filestat *fst, 1148 struct sockstat *sock, char *errbuf) 1149{ 1150 1151 assert(sock); 1152 if (procstat->type == PROCSTAT_KVM) { 1153 return (procstat_get_socket_info_kvm(procstat->kd, fst, sock, 1154 errbuf)); 1155 } else if (procstat->type == PROCSTAT_SYSCTL) { 1156 return (procstat_get_socket_info_sysctl(fst, sock, errbuf)); 1157 } else { 1158 warnx("unknown access method: %d", procstat->type); 1159 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1160 return (1); 1161 } 1162} 1163 1164static int 1165procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst, 1166 struct sockstat *sock, char *errbuf) 1167{ 1168 struct domain dom; 1169 struct inpcb inpcb; 1170 struct protosw proto; 1171 struct socket s; 1172 struct unpcb unpcb; 1173 ssize_t len; 1174 void *so; 1175 1176 assert(kd); 1177 assert(sock); 1178 assert(fst); 1179 bzero(sock, sizeof(*sock)); 1180 so = fst->fs_typedep; 1181 if (so == NULL) 1182 goto fail; 1183 sock->so_addr = (uintptr_t)so; 1184 /* fill in socket */ 1185 if (!kvm_read_all(kd, (unsigned long)so, &s, 1186 sizeof(struct socket))) { 1187 warnx("can't read sock at %p", (void *)so); 1188 goto fail; 1189 } 1190 /* fill in protosw entry */ 1191 if (!kvm_read_all(kd, (unsigned long)s.so_proto, &proto, 1192 sizeof(struct protosw))) { 1193 warnx("can't read protosw at %p", (void *)s.so_proto); 1194 goto fail; 1195 } 1196 /* fill in domain */ 1197 if (!kvm_read_all(kd, (unsigned long)proto.pr_domain, &dom, 1198 sizeof(struct domain))) { 1199 warnx("can't read domain at %p", 1200 (void *)proto.pr_domain); 1201 goto fail; 1202 } 1203 if ((len = kvm_read(kd, (unsigned long)dom.dom_name, sock->dname, 1204 sizeof(sock->dname) - 1)) < 0) { 1205 warnx("can't read domain name at %p", (void *)dom.dom_name); 1206 sock->dname[0] = '\0'; 1207 } 1208 else 1209 sock->dname[len] = '\0'; 1210 1211 /* 1212 * Fill in known data. 1213 */ 1214 sock->type = s.so_type; 1215 sock->proto = proto.pr_protocol; 1216 sock->dom_family = dom.dom_family; 1217 sock->so_pcb = (uintptr_t)s.so_pcb; 1218 1219 /* 1220 * Protocol specific data. 1221 */ 1222 switch(dom.dom_family) { 1223 case AF_INET: 1224 case AF_INET6: 1225 if (proto.pr_protocol == IPPROTO_TCP) { 1226 if (s.so_pcb) { 1227 if (kvm_read(kd, (u_long)s.so_pcb, 1228 (char *)&inpcb, sizeof(struct inpcb)) 1229 != sizeof(struct inpcb)) { 1230 warnx("can't read inpcb at %p", 1231 (void *)s.so_pcb); 1232 } else 1233 sock->inp_ppcb = 1234 (uintptr_t)inpcb.inp_ppcb; 1235 } 1236 } 1237 break; 1238 case AF_UNIX: 1239 if (s.so_pcb) { 1240 if (kvm_read(kd, (u_long)s.so_pcb, (char *)&unpcb, 1241 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 1242 warnx("can't read unpcb at %p", 1243 (void *)s.so_pcb); 1244 } else if (unpcb.unp_conn) { 1245 sock->so_rcv_sb_state = s.so_rcv.sb_state; 1246 sock->so_snd_sb_state = s.so_snd.sb_state; 1247 sock->unp_conn = (uintptr_t)unpcb.unp_conn; 1248 } 1249 } 1250 break; 1251 default: 1252 break; 1253 } 1254 return (0); 1255 1256fail: 1257 snprintf(errbuf, _POSIX2_LINE_MAX, "error"); 1258 return (1); 1259} 1260 1261static int 1262procstat_get_socket_info_sysctl(struct filestat *fst, struct sockstat *sock, 1263 char *errbuf __unused) 1264{ 1265 struct kinfo_file *kif; 1266 1267 assert(sock); 1268 assert(fst); 1269 bzero(sock, sizeof(*sock)); 1270 kif = fst->fs_typedep; 1271 if (kif == NULL) 1272 return (0); 1273 1274 /* 1275 * Fill in known data. 1276 */ 1277 sock->type = kif->kf_sock_type; 1278 sock->proto = kif->kf_sock_protocol; 1279 sock->dom_family = kif->kf_sock_domain; 1280 sock->so_pcb = kif->kf_un.kf_sock.kf_sock_pcb; 1281 strlcpy(sock->dname, kif->kf_path, sizeof(sock->dname)); 1282 bcopy(&kif->kf_sa_local, &sock->sa_local, kif->kf_sa_local.ss_len); 1283 bcopy(&kif->kf_sa_peer, &sock->sa_peer, kif->kf_sa_peer.ss_len); 1284 1285 /* 1286 * Protocol specific data. 1287 */ 1288 switch(sock->dom_family) { 1289 case AF_INET: 1290 case AF_INET6: 1291 if (sock->proto == IPPROTO_TCP) 1292 sock->inp_ppcb = kif->kf_un.kf_sock.kf_sock_inpcb; 1293 break; 1294 case AF_UNIX: 1295 if (kif->kf_un.kf_sock.kf_sock_unpconn != 0) { 1296 sock->so_rcv_sb_state = 1297 kif->kf_un.kf_sock.kf_sock_rcv_sb_state; 1298 sock->so_snd_sb_state = 1299 kif->kf_un.kf_sock.kf_sock_snd_sb_state; 1300 sock->unp_conn = 1301 kif->kf_un.kf_sock.kf_sock_unpconn; 1302 } 1303 break; 1304 default: 1305 break; 1306 } 1307 return (0); 1308} 1309 1310/* 1311 * Descriptor flags to filestat translation. 1312 */ 1313static int 1314to_filestat_flags(int flags) 1315{ 1316 static struct { 1317 int flag; 1318 int fst_flag; 1319 } fstflags[] = { 1320 { FREAD, PS_FST_FFLAG_READ }, 1321 { FWRITE, PS_FST_FFLAG_WRITE }, 1322 { O_APPEND, PS_FST_FFLAG_APPEND }, 1323 { O_ASYNC, PS_FST_FFLAG_ASYNC }, 1324 { O_CREAT, PS_FST_FFLAG_CREAT }, 1325 { O_DIRECT, PS_FST_FFLAG_DIRECT }, 1326 { O_EXCL, PS_FST_FFLAG_EXCL }, 1327 { O_EXEC, PS_FST_FFLAG_EXEC }, 1328 { O_EXLOCK, PS_FST_FFLAG_EXLOCK }, 1329 { O_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW }, 1330 { O_NONBLOCK, PS_FST_FFLAG_NONBLOCK }, 1331 { O_SHLOCK, PS_FST_FFLAG_SHLOCK }, 1332 { O_SYNC, PS_FST_FFLAG_SYNC }, 1333 { O_TRUNC, PS_FST_FFLAG_TRUNC } 1334 }; 1335#define NFSTFLAGS (sizeof(fstflags) / sizeof(*fstflags)) 1336 int fst_flags; 1337 unsigned int i; 1338 1339 fst_flags = 0; 1340 for (i = 0; i < NFSTFLAGS; i++) 1341 if (flags & fstflags[i].flag) 1342 fst_flags |= fstflags[i].fst_flag; 1343 return (fst_flags); 1344} 1345 1346/* 1347 * Vnode type to filestate translation. 1348 */ 1349static int 1350vntype2psfsttype(int type) 1351{ 1352 static struct { 1353 int vtype; 1354 int fst_vtype; 1355 } vt2fst[] = { 1356 { VBAD, PS_FST_VTYPE_VBAD }, 1357 { VBLK, PS_FST_VTYPE_VBLK }, 1358 { VCHR, PS_FST_VTYPE_VCHR }, 1359 { VDIR, PS_FST_VTYPE_VDIR }, 1360 { VFIFO, PS_FST_VTYPE_VFIFO }, 1361 { VLNK, PS_FST_VTYPE_VLNK }, 1362 { VNON, PS_FST_VTYPE_VNON }, 1363 { VREG, PS_FST_VTYPE_VREG }, 1364 { VSOCK, PS_FST_VTYPE_VSOCK } 1365 }; 1366#define NVFTYPES (sizeof(vt2fst) / sizeof(*vt2fst)) 1367 unsigned int i, fst_type; 1368 1369 fst_type = PS_FST_VTYPE_UNKNOWN; 1370 for (i = 0; i < NVFTYPES; i++) { 1371 if (type == vt2fst[i].vtype) { 1372 fst_type = vt2fst[i].fst_vtype; 1373 break; 1374 } 1375 } 1376 return (fst_type); 1377} 1378 1379static char * 1380getmnton(kvm_t *kd, struct mount *m) 1381{ 1382 struct mount mnt; 1383 static struct mtab { 1384 struct mtab *next; 1385 struct mount *m; 1386 char mntonname[MNAMELEN + 1]; 1387 } *mhead = NULL; 1388 struct mtab *mt; 1389 1390 for (mt = mhead; mt != NULL; mt = mt->next) 1391 if (m == mt->m) 1392 return (mt->mntonname); 1393 if (!kvm_read_all(kd, (unsigned long)m, &mnt, sizeof(struct mount))) { 1394 warnx("can't read mount table at %p", (void *)m); 1395 return (NULL); 1396 } 1397 if ((mt = malloc(sizeof (struct mtab))) == NULL) 1398 err(1, NULL); 1399 mt->m = m; 1400 bcopy(&mnt.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 1401 mt->mntonname[MNAMELEN] = '\0'; 1402 mt->next = mhead; 1403 mhead = mt; 1404 return (mt->mntonname); 1405} 1406