2 * Copyright (c) 2017 Dell EMC
3 * Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org>
4 * Copyright (c) 1988, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
39 #include <sys/param.h>
42 #include <sys/resourcevar.h>
44 #include <sys/ucred.h>
49 #include <sys/vnode.h>
50 #include <sys/socket.h>
51 #include <sys/socketvar.h>
52 #include <sys/domain.h>
53 #include <sys/protosw.h>
55 #include <sys/unpcb.h>
56 #include <sys/sysctl.h>
58 #include <sys/filedesc.h>
59 #include <sys/queue.h>
65 #include <sys/capsicum.h>
66 #include <sys/ptrace.h>
68 #include <sys/mount.h>
70 #include <ufs/ufs/quota.h>
71 #include <ufs/ufs/inode.h>
72 #include <fs/devfs/devfs.h>
73 #include <fs/devfs/devfs_int.h>
75 #include <nfs/nfsproto.h>
76 #include <nfsclient/nfs.h>
77 #include <nfsclient/nfsnode.h>
80 #include <vm/vm_map.h>
81 #include <vm/vm_object.h>
83 #include <net/route.h>
84 #include <netinet/in.h>
85 #include <netinet/in_systm.h>
86 #include <netinet/ip.h>
88 #include <netinet/in_pcb.h>
106 #include <libprocstat.h>
107 #include "libprocstat_internal.h"
108 #include "common_kvm.h"
111 int statfs(const char *, struct statfs *); /* XXX */
113 #define PROCSTAT_KVM 1
114 #define PROCSTAT_SYSCTL 2
115 #define PROCSTAT_CORE 3
117 static char **getargv(struct procstat *procstat, struct kinfo_proc *kp,
118 size_t nchr, int env);
119 static char *getmnton(kvm_t *kd, struct mount *m);
120 static struct kinfo_vmentry * kinfo_getvmmap_core(struct procstat_core *core,
122 static Elf_Auxinfo *procstat_getauxv_core(struct procstat_core *core,
124 static Elf_Auxinfo *procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp);
125 static struct filestat_list *procstat_getfiles_kvm(
126 struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
127 static struct filestat_list *procstat_getfiles_sysctl(
128 struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
129 static int procstat_get_pipe_info_sysctl(struct filestat *fst,
130 struct pipestat *pipe, char *errbuf);
131 static int procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
132 struct pipestat *pipe, char *errbuf);
133 static int procstat_get_pts_info_sysctl(struct filestat *fst,
134 struct ptsstat *pts, char *errbuf);
135 static int procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
136 struct ptsstat *pts, char *errbuf);
137 static int procstat_get_sem_info_sysctl(struct filestat *fst,
138 struct semstat *sem, char *errbuf);
139 static int procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
140 struct semstat *sem, char *errbuf);
141 static int procstat_get_shm_info_sysctl(struct filestat *fst,
142 struct shmstat *shm, char *errbuf);
143 static int procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
144 struct shmstat *shm, char *errbuf);
145 static int procstat_get_socket_info_sysctl(struct filestat *fst,
146 struct sockstat *sock, char *errbuf);
147 static int procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
148 struct sockstat *sock, char *errbuf);
149 static int to_filestat_flags(int flags);
150 static int procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
151 struct vnstat *vn, char *errbuf);
152 static int procstat_get_vnode_info_sysctl(struct filestat *fst,
153 struct vnstat *vn, char *errbuf);
154 static gid_t *procstat_getgroups_core(struct procstat_core *core,
155 unsigned int *count);
156 static gid_t * procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp,
157 unsigned int *count);
158 static gid_t *procstat_getgroups_sysctl(pid_t pid, unsigned int *count);
159 static struct kinfo_kstack *procstat_getkstack_sysctl(pid_t pid,
161 static int procstat_getosrel_core(struct procstat_core *core,
163 static int procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp,
165 static int procstat_getosrel_sysctl(pid_t pid, int *osrelp);
166 static int procstat_getpathname_core(struct procstat_core *core,
167 char *pathname, size_t maxlen);
168 static int procstat_getpathname_sysctl(pid_t pid, char *pathname,
170 static int procstat_getrlimit_core(struct procstat_core *core, int which,
171 struct rlimit* rlimit);
172 static int procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp,
173 int which, struct rlimit* rlimit);
174 static int procstat_getrlimit_sysctl(pid_t pid, int which,
175 struct rlimit* rlimit);
176 static int procstat_getumask_core(struct procstat_core *core,
177 unsigned short *maskp);
178 static int procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp,
179 unsigned short *maskp);
180 static int procstat_getumask_sysctl(pid_t pid, unsigned short *maskp);
181 static int vntype2psfsttype(int type);
184 procstat_close(struct procstat *procstat)
188 if (procstat->type == PROCSTAT_KVM)
189 kvm_close(procstat->kd);
190 else if (procstat->type == PROCSTAT_CORE)
191 procstat_core_close(procstat->core);
192 procstat_freeargv(procstat);
193 procstat_freeenvv(procstat);
198 procstat_open_sysctl(void)
200 struct procstat *procstat;
202 procstat = calloc(1, sizeof(*procstat));
203 if (procstat == NULL) {
207 procstat->type = PROCSTAT_SYSCTL;
212 procstat_open_kvm(const char *nlistf, const char *memf)
214 struct procstat *procstat;
216 char buf[_POSIX2_LINE_MAX];
218 procstat = calloc(1, sizeof(*procstat));
219 if (procstat == NULL) {
223 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf);
225 warnx("kvm_openfiles(): %s", buf);
229 procstat->type = PROCSTAT_KVM;
235 procstat_open_core(const char *filename)
237 struct procstat *procstat;
238 struct procstat_core *core;
240 procstat = calloc(1, sizeof(*procstat));
241 if (procstat == NULL) {
245 core = procstat_core_open(filename);
250 procstat->type = PROCSTAT_CORE;
251 procstat->core = core;
256 procstat_getprocs(struct procstat *procstat, int what, int arg,
259 struct kinfo_proc *p0, *p;
268 if (procstat->type == PROCSTAT_KVM) {
270 p0 = kvm_getprocs(procstat->kd, what, arg, &cnt);
271 if (p0 == NULL || cnt <= 0)
274 len = *count * sizeof(*p);
277 warnx("malloc(%zu)", len);
282 } else if (procstat->type == PROCSTAT_SYSCTL) {
288 error = sysctl(name, nitems(name), NULL, &len, NULL, 0);
289 if (error < 0 && errno != EPERM) {
290 warn("sysctl(kern.proc)");
294 warnx("no processes?");
299 p = reallocf(p, len);
301 warnx("reallocf(%zu)", len);
305 error = sysctl(name, nitems(name), p, &len, NULL, 0);
306 } while (error < 0 && errno == ENOMEM && olen == len);
307 if (error < 0 && errno != EPERM) {
308 warn("sysctl(kern.proc)");
311 /* Perform simple consistency checks. */
312 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
313 warnx("kinfo_proc structure size mismatch (len = %zu)", len);
316 *count = len / sizeof(*p);
318 } else if (procstat->type == PROCSTAT_CORE) {
319 p = procstat_core_get(procstat->core, PSC_TYPE_PROC, NULL,
321 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
322 warnx("kinfo_proc structure size mismatch");
325 *count = len / sizeof(*p);
328 warnx("unknown access method: %d", procstat->type);
338 procstat_freeprocs(struct procstat *procstat __unused, struct kinfo_proc *p)
346 struct filestat_list *
347 procstat_getfiles(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
350 switch(procstat->type) {
352 return (procstat_getfiles_kvm(procstat, kp, mmapped));
353 case PROCSTAT_SYSCTL:
355 return (procstat_getfiles_sysctl(procstat, kp, mmapped));
357 warnx("unknown access method: %d", procstat->type);
363 procstat_freefiles(struct procstat *procstat, struct filestat_list *head)
365 struct filestat *fst, *tmp;
367 STAILQ_FOREACH_SAFE(fst, head, next, tmp) {
368 if (fst->fs_path != NULL)
373 if (procstat->vmentries != NULL) {
374 free(procstat->vmentries);
375 procstat->vmentries = NULL;
377 if (procstat->files != NULL) {
378 free(procstat->files);
379 procstat->files = NULL;
383 static struct filestat *
384 filestat_new_entry(void *typedep, int type, int fd, int fflags, int uflags,
385 int refcount, off_t offset, char *path, cap_rights_t *cap_rightsp)
387 struct filestat *entry;
389 entry = calloc(1, sizeof(*entry));
394 entry->fs_typedep = typedep;
395 entry->fs_fflags = fflags;
396 entry->fs_uflags = uflags;
398 entry->fs_type = type;
399 entry->fs_ref_count = refcount;
400 entry->fs_offset = offset;
401 entry->fs_path = path;
402 if (cap_rightsp != NULL)
403 entry->fs_cap_rights = *cap_rightsp;
405 cap_rights_init(&entry->fs_cap_rights);
409 static struct vnode *
410 getctty(kvm_t *kd, struct kinfo_proc *kp)
418 error = kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
421 warnx("can't read proc struct at %p for pid %d",
422 kp->ki_paddr, kp->ki_pid);
425 if (proc.p_pgrp == NULL)
427 error = kvm_read_all(kd, (unsigned long)proc.p_pgrp, &pgrp,
430 warnx("can't read pgrp struct at %p for pid %d",
431 proc.p_pgrp, kp->ki_pid);
434 error = kvm_read_all(kd, (unsigned long)pgrp.pg_session, &sess,
437 warnx("can't read session struct at %p for pid %d",
438 pgrp.pg_session, kp->ki_pid);
441 return (sess.s_ttyvp);
444 static struct filestat_list *
445 procstat_getfiles_kvm(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
448 struct filedesc filed;
449 struct vm_map_entry vmentry;
450 struct vm_object object;
451 struct vmspace vmspace;
452 vm_map_entry_t entryp;
456 struct file **ofiles;
457 struct filestat *entry;
458 struct filestat_list *head;
469 if (kp->ki_fd == NULL)
471 if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &filed,
473 warnx("can't read filedesc at %p", (void *)kp->ki_fd);
478 * Allocate list head.
480 head = malloc(sizeof(*head));
485 /* root directory vnode, if one. */
487 entry = filestat_new_entry(filed.fd_rdir, PS_FST_TYPE_VNODE, -1,
488 PS_FST_FFLAG_READ, PS_FST_UFLAG_RDIR, 0, 0, NULL, NULL);
490 STAILQ_INSERT_TAIL(head, entry, next);
492 /* current working directory vnode. */
494 entry = filestat_new_entry(filed.fd_cdir, PS_FST_TYPE_VNODE, -1,
495 PS_FST_FFLAG_READ, PS_FST_UFLAG_CDIR, 0, 0, NULL, NULL);
497 STAILQ_INSERT_TAIL(head, entry, next);
499 /* jail root, if any. */
501 entry = filestat_new_entry(filed.fd_jdir, PS_FST_TYPE_VNODE, -1,
502 PS_FST_FFLAG_READ, PS_FST_UFLAG_JAIL, 0, 0, NULL, NULL);
504 STAILQ_INSERT_TAIL(head, entry, next);
506 /* ktrace vnode, if one */
508 entry = filestat_new_entry(kp->ki_tracep, PS_FST_TYPE_VNODE, -1,
509 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
510 PS_FST_UFLAG_TRACE, 0, 0, NULL, NULL);
512 STAILQ_INSERT_TAIL(head, entry, next);
514 /* text vnode, if one */
516 entry = filestat_new_entry(kp->ki_textvp, PS_FST_TYPE_VNODE, -1,
517 PS_FST_FFLAG_READ, PS_FST_UFLAG_TEXT, 0, 0, NULL, NULL);
519 STAILQ_INSERT_TAIL(head, entry, next);
521 /* Controlling terminal. */
522 if ((vp = getctty(kd, kp)) != NULL) {
523 entry = filestat_new_entry(vp, PS_FST_TYPE_VNODE, -1,
524 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
525 PS_FST_UFLAG_CTTY, 0, 0, NULL, NULL);
527 STAILQ_INSERT_TAIL(head, entry, next);
530 nfiles = filed.fd_lastfile + 1;
531 ofiles = malloc(nfiles * sizeof(struct file *));
532 if (ofiles == NULL) {
533 warn("malloc(%zu)", nfiles * sizeof(struct file *));
536 if (!kvm_read_all(kd, (unsigned long)filed.fd_ofiles, ofiles,
537 nfiles * sizeof(struct file *))) {
538 warnx("cannot read file structures at %p",
539 (void *)filed.fd_ofiles);
543 for (i = 0; i <= filed.fd_lastfile; i++) {
544 if (ofiles[i] == NULL)
546 if (!kvm_read_all(kd, (unsigned long)ofiles[i], &file,
547 sizeof(struct file))) {
548 warnx("can't read file %d at %p", i,
552 switch (file.f_type) {
554 type = PS_FST_TYPE_VNODE;
558 type = PS_FST_TYPE_SOCKET;
562 type = PS_FST_TYPE_PIPE;
566 type = PS_FST_TYPE_FIFO;
571 type = PS_FST_TYPE_PTS;
576 type = PS_FST_TYPE_SEM;
580 type = PS_FST_TYPE_SHM;
586 /* XXXRW: No capability rights support for kvm yet. */
587 entry = filestat_new_entry(data, type, i,
588 to_filestat_flags(file.f_flag), 0, 0, 0, NULL, NULL);
590 STAILQ_INSERT_TAIL(head, entry, next);
597 * Process mmapped files if requested.
600 if (!kvm_read_all(kd, (unsigned long)kp->ki_vmspace, &vmspace,
602 warnx("can't read vmspace at %p",
603 (void *)kp->ki_vmspace);
606 map = &vmspace.vm_map;
608 for (entryp = map->header.next;
609 entryp != &kp->ki_vmspace->vm_map.header;
610 entryp = vmentry.next) {
611 if (!kvm_read_all(kd, (unsigned long)entryp, &vmentry,
613 warnx("can't read vm_map_entry at %p",
617 if (vmentry.eflags & MAP_ENTRY_IS_SUB_MAP)
619 if ((objp = vmentry.object.vm_object) == NULL)
621 for (; objp; objp = object.backing_object) {
622 if (!kvm_read_all(kd, (unsigned long)objp,
623 &object, sizeof(object))) {
624 warnx("can't read vm_object at %p",
630 /* We want only vnode objects. */
631 if (object.type != OBJT_VNODE)
634 prot = vmentry.protection;
636 if (prot & VM_PROT_READ)
637 fflags = PS_FST_FFLAG_READ;
638 if ((vmentry.eflags & MAP_ENTRY_COW) == 0 &&
639 prot & VM_PROT_WRITE)
640 fflags |= PS_FST_FFLAG_WRITE;
643 * Create filestat entry.
645 entry = filestat_new_entry(object.handle,
646 PS_FST_TYPE_VNODE, -1, fflags,
647 PS_FST_UFLAG_MMAP, 0, 0, NULL, NULL);
649 STAILQ_INSERT_TAIL(head, entry, next);
657 * kinfo types to filestat translation.
660 kinfo_type2fst(int kftype)
666 { KF_TYPE_CRYPTO, PS_FST_TYPE_CRYPTO },
667 { KF_TYPE_FIFO, PS_FST_TYPE_FIFO },
668 { KF_TYPE_KQUEUE, PS_FST_TYPE_KQUEUE },
669 { KF_TYPE_MQUEUE, PS_FST_TYPE_MQUEUE },
670 { KF_TYPE_NONE, PS_FST_TYPE_NONE },
671 { KF_TYPE_PIPE, PS_FST_TYPE_PIPE },
672 { KF_TYPE_PTS, PS_FST_TYPE_PTS },
673 { KF_TYPE_SEM, PS_FST_TYPE_SEM },
674 { KF_TYPE_SHM, PS_FST_TYPE_SHM },
675 { KF_TYPE_SOCKET, PS_FST_TYPE_SOCKET },
676 { KF_TYPE_VNODE, PS_FST_TYPE_VNODE },
677 { KF_TYPE_UNKNOWN, PS_FST_TYPE_UNKNOWN }
679 #define NKFTYPES (sizeof(kftypes2fst) / sizeof(*kftypes2fst))
682 for (i = 0; i < NKFTYPES; i++)
683 if (kftypes2fst[i].kf_type == kftype)
686 return (PS_FST_TYPE_UNKNOWN);
687 return (kftypes2fst[i].fst_type);
691 * kinfo flags to filestat translation.
694 kinfo_fflags2fst(int kfflags)
700 { KF_FLAG_APPEND, PS_FST_FFLAG_APPEND },
701 { KF_FLAG_ASYNC, PS_FST_FFLAG_ASYNC },
702 { KF_FLAG_CREAT, PS_FST_FFLAG_CREAT },
703 { KF_FLAG_DIRECT, PS_FST_FFLAG_DIRECT },
704 { KF_FLAG_EXCL, PS_FST_FFLAG_EXCL },
705 { KF_FLAG_EXEC, PS_FST_FFLAG_EXEC },
706 { KF_FLAG_EXLOCK, PS_FST_FFLAG_EXLOCK },
707 { KF_FLAG_FSYNC, PS_FST_FFLAG_SYNC },
708 { KF_FLAG_HASLOCK, PS_FST_FFLAG_HASLOCK },
709 { KF_FLAG_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
710 { KF_FLAG_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
711 { KF_FLAG_READ, PS_FST_FFLAG_READ },
712 { KF_FLAG_SHLOCK, PS_FST_FFLAG_SHLOCK },
713 { KF_FLAG_TRUNC, PS_FST_FFLAG_TRUNC },
714 { KF_FLAG_WRITE, PS_FST_FFLAG_WRITE }
716 #define NKFFLAGS (sizeof(kfflags2fst) / sizeof(*kfflags2fst))
721 for (i = 0; i < NKFFLAGS; i++)
722 if ((kfflags & kfflags2fst[i].kf_flag) != 0)
723 flags |= kfflags2fst[i].fst_flag;
728 kinfo_uflags2fst(int fd)
732 case KF_FD_TYPE_CTTY:
733 return (PS_FST_UFLAG_CTTY);
735 return (PS_FST_UFLAG_CDIR);
736 case KF_FD_TYPE_JAIL:
737 return (PS_FST_UFLAG_JAIL);
738 case KF_FD_TYPE_TEXT:
739 return (PS_FST_UFLAG_TEXT);
740 case KF_FD_TYPE_TRACE:
741 return (PS_FST_UFLAG_TRACE);
742 case KF_FD_TYPE_ROOT:
743 return (PS_FST_UFLAG_RDIR);
748 static struct kinfo_file *
749 kinfo_getfile_core(struct procstat_core *core, int *cntp)
754 struct kinfo_file *kif, *kp, *kf;
756 buf = procstat_core_get(core, PSC_TYPE_FILES, NULL, &len);
760 * XXXMG: The code below is just copy&past from libutil.
761 * The code duplication can be avoided if libutil
762 * is extended to provide something like:
763 * struct kinfo_file *kinfo_getfile_from_buf(const char *buf,
764 * size_t len, int *cntp);
767 /* Pass 1: count items */
772 kf = (struct kinfo_file *)(uintptr_t)bp;
773 if (kf->kf_structsize == 0)
775 bp += kf->kf_structsize;
779 kif = calloc(cnt, sizeof(*kif));
789 kf = (struct kinfo_file *)(uintptr_t)bp;
790 if (kf->kf_structsize == 0)
792 /* Copy/expand into pre-zeroed buffer */
793 memcpy(kp, kf, kf->kf_structsize);
794 /* Advance to next packed record */
795 bp += kf->kf_structsize;
796 /* Set field size to fixed length, advance */
797 kp->kf_structsize = sizeof(*kp);
802 return (kif); /* Caller must free() return value */
805 static struct filestat_list *
806 procstat_getfiles_sysctl(struct procstat *procstat, struct kinfo_proc *kp,
809 struct kinfo_file *kif, *files;
810 struct kinfo_vmentry *kve, *vmentries;
811 struct filestat_list *head;
812 struct filestat *entry;
818 cap_rights_t cap_rights;
821 if (kp->ki_fd == NULL)
823 switch(procstat->type) {
824 case PROCSTAT_SYSCTL:
825 files = kinfo_getfile(kp->ki_pid, &cnt);
828 files = kinfo_getfile_core(procstat->core, &cnt);
831 assert(!"invalid type");
833 if (files == NULL && errno != EPERM) {
834 warn("kinfo_getfile()");
837 procstat->files = files;
840 * Allocate list head.
842 head = malloc(sizeof(*head));
846 for (i = 0; i < cnt; i++) {
849 type = kinfo_type2fst(kif->kf_type);
850 fd = kif->kf_fd >= 0 ? kif->kf_fd : -1;
851 fflags = kinfo_fflags2fst(kif->kf_flags);
852 uflags = kinfo_uflags2fst(kif->kf_fd);
853 refcount = kif->kf_ref_count;
854 offset = kif->kf_offset;
855 if (*kif->kf_path != '\0')
856 path = strdup(kif->kf_path);
859 cap_rights = kif->kf_cap_rights;
862 * Create filestat entry.
864 entry = filestat_new_entry(kif, type, fd, fflags, uflags,
865 refcount, offset, path, &cap_rights);
867 STAILQ_INSERT_TAIL(head, entry, next);
870 vmentries = procstat_getvmmap(procstat, kp, &cnt);
871 procstat->vmentries = vmentries;
872 if (vmentries == NULL || cnt == 0)
874 for (i = 0; i < cnt; i++) {
876 if (kve->kve_type != KVME_TYPE_VNODE)
879 if (kve->kve_protection & KVME_PROT_READ)
880 fflags = PS_FST_FFLAG_READ;
881 if ((kve->kve_flags & KVME_FLAG_COW) == 0 &&
882 kve->kve_protection & KVME_PROT_WRITE)
883 fflags |= PS_FST_FFLAG_WRITE;
884 offset = kve->kve_offset;
885 refcount = kve->kve_ref_count;
886 if (*kve->kve_path != '\0')
887 path = strdup(kve->kve_path);
890 entry = filestat_new_entry(kve, PS_FST_TYPE_VNODE, -1,
891 fflags, PS_FST_UFLAG_MMAP, refcount, offset, path,
894 STAILQ_INSERT_TAIL(head, entry, next);
902 procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst,
903 struct pipestat *ps, char *errbuf)
907 if (procstat->type == PROCSTAT_KVM) {
908 return (procstat_get_pipe_info_kvm(procstat->kd, fst, ps,
910 } else if (procstat->type == PROCSTAT_SYSCTL ||
911 procstat->type == PROCSTAT_CORE) {
912 return (procstat_get_pipe_info_sysctl(fst, ps, errbuf));
914 warnx("unknown access method: %d", procstat->type);
916 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
922 procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
923 struct pipestat *ps, char *errbuf)
931 bzero(ps, sizeof(*ps));
932 pipep = fst->fs_typedep;
935 if (!kvm_read_all(kd, (unsigned long)pipep, &pi, sizeof(struct pipe))) {
936 warnx("can't read pipe at %p", (void *)pipep);
939 ps->addr = (uintptr_t)pipep;
940 ps->peer = (uintptr_t)pi.pipe_peer;
941 ps->buffer_cnt = pi.pipe_buffer.cnt;
946 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
951 procstat_get_pipe_info_sysctl(struct filestat *fst, struct pipestat *ps,
952 char *errbuf __unused)
954 struct kinfo_file *kif;
958 bzero(ps, sizeof(*ps));
959 kif = fst->fs_typedep;
962 ps->addr = kif->kf_un.kf_pipe.kf_pipe_addr;
963 ps->peer = kif->kf_un.kf_pipe.kf_pipe_peer;
964 ps->buffer_cnt = kif->kf_un.kf_pipe.kf_pipe_buffer_cnt;
969 procstat_get_pts_info(struct procstat *procstat, struct filestat *fst,
970 struct ptsstat *pts, char *errbuf)
974 if (procstat->type == PROCSTAT_KVM) {
975 return (procstat_get_pts_info_kvm(procstat->kd, fst, pts,
977 } else if (procstat->type == PROCSTAT_SYSCTL ||
978 procstat->type == PROCSTAT_CORE) {
979 return (procstat_get_pts_info_sysctl(fst, pts, errbuf));
981 warnx("unknown access method: %d", procstat->type);
983 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
989 procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
990 struct ptsstat *pts, char *errbuf)
998 bzero(pts, sizeof(*pts));
999 ttyp = fst->fs_typedep;
1002 if (!kvm_read_all(kd, (unsigned long)ttyp, &tty, sizeof(struct tty))) {
1003 warnx("can't read tty at %p", (void *)ttyp);
1006 pts->dev = dev2udev(kd, tty.t_dev);
1007 (void)kdevtoname(kd, tty.t_dev, pts->devname);
1012 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1017 procstat_get_pts_info_sysctl(struct filestat *fst, struct ptsstat *pts,
1018 char *errbuf __unused)
1020 struct kinfo_file *kif;
1024 bzero(pts, sizeof(*pts));
1025 kif = fst->fs_typedep;
1028 pts->dev = kif->kf_un.kf_pts.kf_pts_dev;
1029 strlcpy(pts->devname, kif->kf_path, sizeof(pts->devname));
1034 procstat_get_sem_info(struct procstat *procstat, struct filestat *fst,
1035 struct semstat *sem, char *errbuf)
1039 if (procstat->type == PROCSTAT_KVM) {
1040 return (procstat_get_sem_info_kvm(procstat->kd, fst, sem,
1042 } else if (procstat->type == PROCSTAT_SYSCTL ||
1043 procstat->type == PROCSTAT_CORE) {
1044 return (procstat_get_sem_info_sysctl(fst, sem, errbuf));
1046 warnx("unknown access method: %d", procstat->type);
1048 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1054 procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
1055 struct semstat *sem, char *errbuf)
1065 bzero(sem, sizeof(*sem));
1066 ksemp = fst->fs_typedep;
1069 if (!kvm_read_all(kd, (unsigned long)ksemp, &ksem,
1070 sizeof(struct ksem))) {
1071 warnx("can't read ksem at %p", (void *)ksemp);
1074 sem->mode = S_IFREG | ksem.ks_mode;
1075 sem->value = ksem.ks_value;
1076 if (fst->fs_path == NULL && ksem.ks_path != NULL) {
1077 path = malloc(MAXPATHLEN);
1078 for (i = 0; i < MAXPATHLEN - 1; i++) {
1079 if (!kvm_read_all(kd, (unsigned long)ksem.ks_path + i,
1082 if (path[i] == '\0')
1089 fst->fs_path = path;
1095 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1100 procstat_get_sem_info_sysctl(struct filestat *fst, struct semstat *sem,
1101 char *errbuf __unused)
1103 struct kinfo_file *kif;
1107 bzero(sem, sizeof(*sem));
1108 kif = fst->fs_typedep;
1111 sem->value = kif->kf_un.kf_sem.kf_sem_value;
1112 sem->mode = kif->kf_un.kf_sem.kf_sem_mode;
1117 procstat_get_shm_info(struct procstat *procstat, struct filestat *fst,
1118 struct shmstat *shm, char *errbuf)
1122 if (procstat->type == PROCSTAT_KVM) {
1123 return (procstat_get_shm_info_kvm(procstat->kd, fst, shm,
1125 } else if (procstat->type == PROCSTAT_SYSCTL ||
1126 procstat->type == PROCSTAT_CORE) {
1127 return (procstat_get_shm_info_sysctl(fst, shm, errbuf));
1129 warnx("unknown access method: %d", procstat->type);
1131 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1137 procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
1138 struct shmstat *shm, char *errbuf)
1148 bzero(shm, sizeof(*shm));
1149 shmfdp = fst->fs_typedep;
1152 if (!kvm_read_all(kd, (unsigned long)shmfdp, &shmfd,
1153 sizeof(struct shmfd))) {
1154 warnx("can't read shmfd at %p", (void *)shmfdp);
1157 shm->mode = S_IFREG | shmfd.shm_mode;
1158 shm->size = shmfd.shm_size;
1159 if (fst->fs_path == NULL && shmfd.shm_path != NULL) {
1160 path = malloc(MAXPATHLEN);
1161 for (i = 0; i < MAXPATHLEN - 1; i++) {
1162 if (!kvm_read_all(kd, (unsigned long)shmfd.shm_path + i,
1165 if (path[i] == '\0')
1172 fst->fs_path = path;
1178 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1183 procstat_get_shm_info_sysctl(struct filestat *fst, struct shmstat *shm,
1184 char *errbuf __unused)
1186 struct kinfo_file *kif;
1190 bzero(shm, sizeof(*shm));
1191 kif = fst->fs_typedep;
1194 shm->size = kif->kf_un.kf_file.kf_file_size;
1195 shm->mode = kif->kf_un.kf_file.kf_file_mode;
1200 procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst,
1201 struct vnstat *vn, char *errbuf)
1205 if (procstat->type == PROCSTAT_KVM) {
1206 return (procstat_get_vnode_info_kvm(procstat->kd, fst, vn,
1208 } else if (procstat->type == PROCSTAT_SYSCTL ||
1209 procstat->type == PROCSTAT_CORE) {
1210 return (procstat_get_vnode_info_sysctl(fst, vn, errbuf));
1212 warnx("unknown access method: %d", procstat->type);
1214 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1220 procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
1221 struct vnstat *vn, char *errbuf)
1223 /* Filesystem specific handlers. */
1224 #define FSTYPE(fst) {#fst, fst##_filestat}
1227 int (*handler)(kvm_t *kd, struct vnode *vp,
1237 #ifdef LIBPROCSTAT_ZFS
1241 #define NTYPES (sizeof(fstypes) / sizeof(*fstypes))
1251 vp = fst->fs_typedep;
1254 error = kvm_read_all(kd, (unsigned long)vp, &vnode, sizeof(vnode));
1256 warnx("can't read vnode at %p", (void *)vp);
1259 bzero(vn, sizeof(*vn));
1260 vn->vn_type = vntype2psfsttype(vnode.v_type);
1261 if (vnode.v_type == VNON || vnode.v_type == VBAD)
1263 error = kvm_read_all(kd, (unsigned long)vnode.v_tag, tagstr,
1266 warnx("can't read v_tag at %p", (void *)vp);
1269 tagstr[sizeof(tagstr) - 1] = '\0';
1272 * Find appropriate handler.
1274 for (i = 0; i < NTYPES; i++)
1275 if (!strcmp(fstypes[i].tag, tagstr)) {
1276 if (fstypes[i].handler(kd, &vnode, vn) != 0) {
1283 snprintf(errbuf, _POSIX2_LINE_MAX, "?(%s)", tagstr);
1286 vn->vn_mntdir = getmnton(kd, vnode.v_mount);
1287 if ((vnode.v_type == VBLK || vnode.v_type == VCHR) &&
1288 vnode.v_rdev != NULL){
1289 vn->vn_dev = dev2udev(kd, vnode.v_rdev);
1290 (void)kdevtoname(kd, vnode.v_rdev, vn->vn_devname);
1298 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1303 * kinfo vnode type to filestat translation.
1306 kinfo_vtype2fst(int kfvtype)
1311 } kfvtypes2fst[] = {
1312 { KF_VTYPE_VBAD, PS_FST_VTYPE_VBAD },
1313 { KF_VTYPE_VBLK, PS_FST_VTYPE_VBLK },
1314 { KF_VTYPE_VCHR, PS_FST_VTYPE_VCHR },
1315 { KF_VTYPE_VDIR, PS_FST_VTYPE_VDIR },
1316 { KF_VTYPE_VFIFO, PS_FST_VTYPE_VFIFO },
1317 { KF_VTYPE_VLNK, PS_FST_VTYPE_VLNK },
1318 { KF_VTYPE_VNON, PS_FST_VTYPE_VNON },
1319 { KF_VTYPE_VREG, PS_FST_VTYPE_VREG },
1320 { KF_VTYPE_VSOCK, PS_FST_VTYPE_VSOCK }
1322 #define NKFVTYPES (sizeof(kfvtypes2fst) / sizeof(*kfvtypes2fst))
1325 for (i = 0; i < NKFVTYPES; i++)
1326 if (kfvtypes2fst[i].kf_vtype == kfvtype)
1329 return (PS_FST_VTYPE_UNKNOWN);
1330 return (kfvtypes2fst[i].fst_vtype);
1334 procstat_get_vnode_info_sysctl(struct filestat *fst, struct vnstat *vn,
1337 struct statfs stbuf;
1338 struct kinfo_file *kif;
1339 struct kinfo_vmentry *kve;
1351 bzero(vn, sizeof(*vn));
1352 if (fst->fs_typedep == NULL)
1354 if (fst->fs_uflags & PS_FST_UFLAG_MMAP) {
1355 kve = fst->fs_typedep;
1356 fileid = kve->kve_vn_fileid;
1357 fsid = kve->kve_vn_fsid;
1358 mode = kve->kve_vn_mode;
1359 path = kve->kve_path;
1360 rdev = kve->kve_vn_rdev;
1361 size = kve->kve_vn_size;
1362 vntype = kinfo_vtype2fst(kve->kve_vn_type);
1363 status = kve->kve_status;
1365 kif = fst->fs_typedep;
1366 fileid = kif->kf_un.kf_file.kf_file_fileid;
1367 fsid = kif->kf_un.kf_file.kf_file_fsid;
1368 mode = kif->kf_un.kf_file.kf_file_mode;
1369 path = kif->kf_path;
1370 rdev = kif->kf_un.kf_file.kf_file_rdev;
1371 size = kif->kf_un.kf_file.kf_file_size;
1372 vntype = kinfo_vtype2fst(kif->kf_vnode_type);
1373 status = kif->kf_status;
1375 vn->vn_type = vntype;
1376 if (vntype == PS_FST_VTYPE_VNON || vntype == PS_FST_VTYPE_VBAD)
1378 if ((status & KF_ATTR_VALID) == 0) {
1379 if (errbuf != NULL) {
1380 snprintf(errbuf, _POSIX2_LINE_MAX,
1381 "? (no info available)");
1385 if (path && *path) {
1386 statfs(path, &stbuf);
1387 vn->vn_mntdir = strdup(stbuf.f_mntonname);
1389 vn->vn_mntdir = strdup("-");
1391 if (vntype == PS_FST_VTYPE_VBLK) {
1392 name = devname(rdev, S_IFBLK);
1394 strlcpy(vn->vn_devname, name,
1395 sizeof(vn->vn_devname));
1396 } else if (vntype == PS_FST_VTYPE_VCHR) {
1397 name = devname(vn->vn_dev, S_IFCHR);
1399 strlcpy(vn->vn_devname, name,
1400 sizeof(vn->vn_devname));
1403 vn->vn_fileid = fileid;
1410 procstat_get_socket_info(struct procstat *procstat, struct filestat *fst,
1411 struct sockstat *sock, char *errbuf)
1415 if (procstat->type == PROCSTAT_KVM) {
1416 return (procstat_get_socket_info_kvm(procstat->kd, fst, sock,
1418 } else if (procstat->type == PROCSTAT_SYSCTL ||
1419 procstat->type == PROCSTAT_CORE) {
1420 return (procstat_get_socket_info_sysctl(fst, sock, errbuf));
1422 warnx("unknown access method: %d", procstat->type);
1424 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1430 procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
1431 struct sockstat *sock, char *errbuf)
1435 struct protosw proto;
1444 bzero(sock, sizeof(*sock));
1445 so = fst->fs_typedep;
1448 sock->so_addr = (uintptr_t)so;
1449 /* fill in socket */
1450 if (!kvm_read_all(kd, (unsigned long)so, &s,
1451 sizeof(struct socket))) {
1452 warnx("can't read sock at %p", (void *)so);
1455 /* fill in protosw entry */
1456 if (!kvm_read_all(kd, (unsigned long)s.so_proto, &proto,
1457 sizeof(struct protosw))) {
1458 warnx("can't read protosw at %p", (void *)s.so_proto);
1461 /* fill in domain */
1462 if (!kvm_read_all(kd, (unsigned long)proto.pr_domain, &dom,
1463 sizeof(struct domain))) {
1464 warnx("can't read domain at %p",
1465 (void *)proto.pr_domain);
1468 if ((len = kvm_read(kd, (unsigned long)dom.dom_name, sock->dname,
1469 sizeof(sock->dname) - 1)) < 0) {
1470 warnx("can't read domain name at %p", (void *)dom.dom_name);
1471 sock->dname[0] = '\0';
1474 sock->dname[len] = '\0';
1477 * Fill in known data.
1479 sock->type = s.so_type;
1480 sock->proto = proto.pr_protocol;
1481 sock->dom_family = dom.dom_family;
1482 sock->so_pcb = (uintptr_t)s.so_pcb;
1485 * Protocol specific data.
1487 switch(dom.dom_family) {
1490 if (proto.pr_protocol == IPPROTO_TCP) {
1492 if (kvm_read(kd, (u_long)s.so_pcb,
1493 (char *)&inpcb, sizeof(struct inpcb))
1494 != sizeof(struct inpcb)) {
1495 warnx("can't read inpcb at %p",
1499 (uintptr_t)inpcb.inp_ppcb;
1500 sock->sendq = s.so_snd.sb_ccc;
1501 sock->recvq = s.so_rcv.sb_ccc;
1507 if (kvm_read(kd, (u_long)s.so_pcb, (char *)&unpcb,
1508 sizeof(struct unpcb)) != sizeof(struct unpcb)){
1509 warnx("can't read unpcb at %p",
1511 } else if (unpcb.unp_conn) {
1512 sock->so_rcv_sb_state = s.so_rcv.sb_state;
1513 sock->so_snd_sb_state = s.so_snd.sb_state;
1514 sock->unp_conn = (uintptr_t)unpcb.unp_conn;
1515 sock->sendq = s.so_snd.sb_ccc;
1516 sock->recvq = s.so_rcv.sb_ccc;
1527 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1532 procstat_get_socket_info_sysctl(struct filestat *fst, struct sockstat *sock,
1533 char *errbuf __unused)
1535 struct kinfo_file *kif;
1539 bzero(sock, sizeof(*sock));
1540 kif = fst->fs_typedep;
1545 * Fill in known data.
1547 sock->type = kif->kf_sock_type;
1548 sock->proto = kif->kf_sock_protocol;
1549 sock->dom_family = kif->kf_sock_domain;
1550 sock->so_pcb = kif->kf_un.kf_sock.kf_sock_pcb;
1551 strlcpy(sock->dname, kif->kf_path, sizeof(sock->dname));
1552 bcopy(&kif->kf_un.kf_sock.kf_sa_local, &sock->sa_local,
1553 kif->kf_un.kf_sock.kf_sa_local.ss_len);
1554 bcopy(&kif->kf_un.kf_sock.kf_sa_peer, &sock->sa_peer,
1555 kif->kf_un.kf_sock.kf_sa_peer.ss_len);
1558 * Protocol specific data.
1560 switch(sock->dom_family) {
1563 if (sock->proto == IPPROTO_TCP) {
1564 sock->inp_ppcb = kif->kf_un.kf_sock.kf_sock_inpcb;
1565 sock->sendq = kif->kf_un.kf_sock.kf_sock_sendq;
1566 sock->recvq = kif->kf_un.kf_sock.kf_sock_recvq;
1570 if (kif->kf_un.kf_sock.kf_sock_unpconn != 0) {
1571 sock->so_rcv_sb_state =
1572 kif->kf_un.kf_sock.kf_sock_rcv_sb_state;
1573 sock->so_snd_sb_state =
1574 kif->kf_un.kf_sock.kf_sock_snd_sb_state;
1576 kif->kf_un.kf_sock.kf_sock_unpconn;
1577 sock->sendq = kif->kf_un.kf_sock.kf_sock_sendq;
1578 sock->recvq = kif->kf_un.kf_sock.kf_sock_recvq;
1588 * Descriptor flags to filestat translation.
1591 to_filestat_flags(int flags)
1597 { FREAD, PS_FST_FFLAG_READ },
1598 { FWRITE, PS_FST_FFLAG_WRITE },
1599 { O_APPEND, PS_FST_FFLAG_APPEND },
1600 { O_ASYNC, PS_FST_FFLAG_ASYNC },
1601 { O_CREAT, PS_FST_FFLAG_CREAT },
1602 { O_DIRECT, PS_FST_FFLAG_DIRECT },
1603 { O_EXCL, PS_FST_FFLAG_EXCL },
1604 { O_EXEC, PS_FST_FFLAG_EXEC },
1605 { O_EXLOCK, PS_FST_FFLAG_EXLOCK },
1606 { O_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
1607 { O_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
1608 { O_SHLOCK, PS_FST_FFLAG_SHLOCK },
1609 { O_SYNC, PS_FST_FFLAG_SYNC },
1610 { O_TRUNC, PS_FST_FFLAG_TRUNC }
1612 #define NFSTFLAGS (sizeof(fstflags) / sizeof(*fstflags))
1617 for (i = 0; i < NFSTFLAGS; i++)
1618 if (flags & fstflags[i].flag)
1619 fst_flags |= fstflags[i].fst_flag;
1624 * Vnode type to filestate translation.
1627 vntype2psfsttype(int type)
1633 { VBAD, PS_FST_VTYPE_VBAD },
1634 { VBLK, PS_FST_VTYPE_VBLK },
1635 { VCHR, PS_FST_VTYPE_VCHR },
1636 { VDIR, PS_FST_VTYPE_VDIR },
1637 { VFIFO, PS_FST_VTYPE_VFIFO },
1638 { VLNK, PS_FST_VTYPE_VLNK },
1639 { VNON, PS_FST_VTYPE_VNON },
1640 { VREG, PS_FST_VTYPE_VREG },
1641 { VSOCK, PS_FST_VTYPE_VSOCK }
1643 #define NVFTYPES (sizeof(vt2fst) / sizeof(*vt2fst))
1644 unsigned int i, fst_type;
1646 fst_type = PS_FST_VTYPE_UNKNOWN;
1647 for (i = 0; i < NVFTYPES; i++) {
1648 if (type == vt2fst[i].vtype) {
1649 fst_type = vt2fst[i].fst_vtype;
1657 getmnton(kvm_t *kd, struct mount *m)
1660 static struct mtab {
1663 char mntonname[MNAMELEN + 1];
1667 for (mt = mhead; mt != NULL; mt = mt->next)
1669 return (mt->mntonname);
1670 if (!kvm_read_all(kd, (unsigned long)m, &mnt, sizeof(struct mount))) {
1671 warnx("can't read mount table at %p", (void *)m);
1674 if ((mt = malloc(sizeof (struct mtab))) == NULL)
1677 bcopy(&mnt.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
1678 mt->mntonname[MNAMELEN] = '\0';
1681 return (mt->mntonname);
1685 * Auxiliary structures and functions to get process environment or
1686 * command line arguments.
1695 static struct argvec *
1696 argvec_alloc(size_t bufsize)
1700 av = malloc(sizeof(*av));
1703 av->bufsize = bufsize;
1704 av->buf = malloc(av->bufsize);
1705 if (av->buf == NULL) {
1710 av->argv = malloc(sizeof(char *) * av->argc);
1711 if (av->argv == NULL) {
1720 argvec_free(struct argvec * av)
1729 getargv(struct procstat *procstat, struct kinfo_proc *kp, size_t nchr, int env)
1731 int error, name[4], argc, i;
1732 struct argvec *av, **avp;
1739 if (procstat->type == PROCSTAT_KVM) {
1740 warnx("can't use kvm access method");
1743 if (procstat->type != PROCSTAT_SYSCTL &&
1744 procstat->type != PROCSTAT_CORE) {
1745 warnx("unknown access method: %d", procstat->type);
1749 if (nchr == 0 || nchr > ARG_MAX)
1752 avp = (struct argvec **)(env ? &procstat->argv : &procstat->envv);
1757 av = argvec_alloc(nchr);
1760 warn("malloc(%zu)", nchr);
1764 } else if (av->bufsize < nchr) {
1765 av->buf = reallocf(av->buf, nchr);
1766 if (av->buf == NULL) {
1767 warn("malloc(%zu)", nchr);
1771 if (procstat->type == PROCSTAT_SYSCTL) {
1773 name[1] = KERN_PROC;
1774 name[2] = env ? KERN_PROC_ENV : KERN_PROC_ARGS;
1775 name[3] = kp->ki_pid;
1777 error = sysctl(name, nitems(name), av->buf, &len, NULL, 0);
1778 if (error != 0 && errno != ESRCH && errno != EPERM)
1779 warn("sysctl(kern.proc.%s)", env ? "env" : "args");
1780 if (error != 0 || len == 0)
1782 } else /* procstat->type == PROCSTAT_CORE */ {
1783 type = env ? PSC_TYPE_ENVV : PSC_TYPE_ARGV;
1785 if (procstat_core_get(procstat->core, type, av->buf, &len)
1794 for (p = av->buf; p < av->buf + len; p += strlen(p) + 1) {
1800 argv = realloc(argv, sizeof(char *) * argc);
1802 warn("malloc(%zu)", sizeof(char *) * argc);
1814 * Return process command line arguments.
1817 procstat_getargv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
1820 return (getargv(procstat, p, nchr, 0));
1824 * Free the buffer allocated by procstat_getargv().
1827 procstat_freeargv(struct procstat *procstat)
1830 if (procstat->argv != NULL) {
1831 argvec_free(procstat->argv);
1832 procstat->argv = NULL;
1837 * Return process environment.
1840 procstat_getenvv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
1843 return (getargv(procstat, p, nchr, 1));
1847 * Free the buffer allocated by procstat_getenvv().
1850 procstat_freeenvv(struct procstat *procstat)
1852 if (procstat->envv != NULL) {
1853 argvec_free(procstat->envv);
1854 procstat->envv = NULL;
1858 static struct kinfo_vmentry *
1859 kinfo_getvmmap_core(struct procstat_core *core, int *cntp)
1863 char *buf, *bp, *eb;
1864 struct kinfo_vmentry *kiv, *kp, *kv;
1866 buf = procstat_core_get(core, PSC_TYPE_VMMAP, NULL, &len);
1871 * XXXMG: The code below is just copy&past from libutil.
1872 * The code duplication can be avoided if libutil
1873 * is extended to provide something like:
1874 * struct kinfo_vmentry *kinfo_getvmmap_from_buf(const char *buf,
1875 * size_t len, int *cntp);
1878 /* Pass 1: count items */
1883 kv = (struct kinfo_vmentry *)(uintptr_t)bp;
1884 if (kv->kve_structsize == 0)
1886 bp += kv->kve_structsize;
1890 kiv = calloc(cnt, sizeof(*kiv));
1898 /* Pass 2: unpack */
1900 kv = (struct kinfo_vmentry *)(uintptr_t)bp;
1901 if (kv->kve_structsize == 0)
1903 /* Copy/expand into pre-zeroed buffer */
1904 memcpy(kp, kv, kv->kve_structsize);
1905 /* Advance to next packed record */
1906 bp += kv->kve_structsize;
1907 /* Set field size to fixed length, advance */
1908 kp->kve_structsize = sizeof(*kp);
1913 return (kiv); /* Caller must free() return value */
1916 struct kinfo_vmentry *
1917 procstat_getvmmap(struct procstat *procstat, struct kinfo_proc *kp,
1921 switch(procstat->type) {
1923 warnx("kvm method is not supported");
1925 case PROCSTAT_SYSCTL:
1926 return (kinfo_getvmmap(kp->ki_pid, cntp));
1928 return (kinfo_getvmmap_core(procstat->core, cntp));
1930 warnx("unknown access method: %d", procstat->type);
1936 procstat_freevmmap(struct procstat *procstat __unused,
1937 struct kinfo_vmentry *vmmap)
1944 procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned int *cntp)
1953 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
1955 warnx("can't read proc struct at %p for pid %d",
1956 kp->ki_paddr, kp->ki_pid);
1959 if (proc.p_ucred == NOCRED)
1961 if (!kvm_read_all(kd, (unsigned long)proc.p_ucred, &ucred,
1963 warnx("can't read ucred struct at %p for pid %d",
1964 proc.p_ucred, kp->ki_pid);
1967 len = ucred.cr_ngroups * sizeof(gid_t);
1968 groups = malloc(len);
1969 if (groups == NULL) {
1970 warn("malloc(%zu)", len);
1973 if (!kvm_read_all(kd, (unsigned long)ucred.cr_groups, groups, len)) {
1974 warnx("can't read groups at %p for pid %d",
1975 ucred.cr_groups, kp->ki_pid);
1979 *cntp = ucred.cr_ngroups;
1984 procstat_getgroups_sysctl(pid_t pid, unsigned int *cntp)
1992 mib[2] = KERN_PROC_GROUPS;
1994 len = (sysconf(_SC_NGROUPS_MAX) + 1) * sizeof(gid_t);
1995 groups = malloc(len);
1996 if (groups == NULL) {
1997 warn("malloc(%zu)", len);
2000 if (sysctl(mib, nitems(mib), groups, &len, NULL, 0) == -1) {
2001 warn("sysctl: kern.proc.groups: %d", pid);
2005 *cntp = len / sizeof(gid_t);
2010 procstat_getgroups_core(struct procstat_core *core, unsigned int *cntp)
2015 groups = procstat_core_get(core, PSC_TYPE_GROUPS, NULL, &len);
2018 *cntp = len / sizeof(gid_t);
2023 procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp,
2026 switch(procstat->type) {
2028 return (procstat_getgroups_kvm(procstat->kd, kp, cntp));
2029 case PROCSTAT_SYSCTL:
2030 return (procstat_getgroups_sysctl(kp->ki_pid, cntp));
2032 return (procstat_getgroups_core(procstat->core, cntp));
2034 warnx("unknown access method: %d", procstat->type);
2040 procstat_freegroups(struct procstat *procstat __unused, gid_t *groups)
2047 procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned short *maskp)
2053 if (kp->ki_fd == NULL)
2055 if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &fd, sizeof(fd))) {
2056 warnx("can't read filedesc at %p for pid %d", kp->ki_fd,
2060 *maskp = fd.fd_cmask;
2065 procstat_getumask_sysctl(pid_t pid, unsigned short *maskp)
2073 mib[2] = KERN_PROC_UMASK;
2075 len = sizeof(*maskp);
2076 error = sysctl(mib, nitems(mib), maskp, &len, NULL, 0);
2077 if (error != 0 && errno != ESRCH && errno != EPERM)
2078 warn("sysctl: kern.proc.umask: %d", pid);
2083 procstat_getumask_core(struct procstat_core *core, unsigned short *maskp)
2086 unsigned short *buf;
2088 buf = procstat_core_get(core, PSC_TYPE_UMASK, NULL, &len);
2091 if (len < sizeof(*maskp)) {
2101 procstat_getumask(struct procstat *procstat, struct kinfo_proc *kp,
2102 unsigned short *maskp)
2104 switch(procstat->type) {
2106 return (procstat_getumask_kvm(procstat->kd, kp, maskp));
2107 case PROCSTAT_SYSCTL:
2108 return (procstat_getumask_sysctl(kp->ki_pid, maskp));
2110 return (procstat_getumask_core(procstat->core, maskp));
2112 warnx("unknown access method: %d", procstat->type);
2118 procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp, int which,
2119 struct rlimit* rlimit)
2122 unsigned long offset;
2126 assert(which >= 0 && which < RLIM_NLIMITS);
2127 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2129 warnx("can't read proc struct at %p for pid %d",
2130 kp->ki_paddr, kp->ki_pid);
2133 if (proc.p_limit == NULL)
2135 offset = (unsigned long)proc.p_limit + sizeof(struct rlimit) * which;
2136 if (!kvm_read_all(kd, offset, rlimit, sizeof(*rlimit))) {
2137 warnx("can't read rlimit struct at %p for pid %d",
2138 (void *)offset, kp->ki_pid);
2145 procstat_getrlimit_sysctl(pid_t pid, int which, struct rlimit* rlimit)
2151 name[1] = KERN_PROC;
2152 name[2] = KERN_PROC_RLIMIT;
2155 len = sizeof(struct rlimit);
2156 error = sysctl(name, nitems(name), rlimit, &len, NULL, 0);
2157 if (error < 0 && errno != ESRCH) {
2158 warn("sysctl: kern.proc.rlimit: %d", pid);
2161 if (error < 0 || len != sizeof(struct rlimit))
2167 procstat_getrlimit_core(struct procstat_core *core, int which,
2168 struct rlimit* rlimit)
2171 struct rlimit* rlimits;
2173 if (which < 0 || which >= RLIM_NLIMITS) {
2175 warn("getrlimit: which");
2178 rlimits = procstat_core_get(core, PSC_TYPE_RLIMIT, NULL, &len);
2179 if (rlimits == NULL)
2181 if (len < sizeof(struct rlimit) * RLIM_NLIMITS) {
2185 *rlimit = rlimits[which];
2190 procstat_getrlimit(struct procstat *procstat, struct kinfo_proc *kp, int which,
2191 struct rlimit* rlimit)
2193 switch(procstat->type) {
2195 return (procstat_getrlimit_kvm(procstat->kd, kp, which,
2197 case PROCSTAT_SYSCTL:
2198 return (procstat_getrlimit_sysctl(kp->ki_pid, which, rlimit));
2200 return (procstat_getrlimit_core(procstat->core, which, rlimit));
2202 warnx("unknown access method: %d", procstat->type);
2208 procstat_getpathname_sysctl(pid_t pid, char *pathname, size_t maxlen)
2214 name[1] = KERN_PROC;
2215 name[2] = KERN_PROC_PATHNAME;
2218 error = sysctl(name, nitems(name), pathname, &len, NULL, 0);
2219 if (error != 0 && errno != ESRCH)
2220 warn("sysctl: kern.proc.pathname: %d", pid);
2227 procstat_getpathname_core(struct procstat_core *core, char *pathname,
2230 struct kinfo_file *files;
2233 files = kinfo_getfile_core(core, &cnt);
2237 for (i = 0; i < cnt; i++) {
2238 if (files[i].kf_fd != KF_FD_TYPE_TEXT)
2240 strncpy(pathname, files[i].kf_path, maxlen);
2249 procstat_getpathname(struct procstat *procstat, struct kinfo_proc *kp,
2250 char *pathname, size_t maxlen)
2252 switch(procstat->type) {
2254 /* XXX: Return empty string. */
2258 case PROCSTAT_SYSCTL:
2259 return (procstat_getpathname_sysctl(kp->ki_pid, pathname,
2262 return (procstat_getpathname_core(procstat->core, pathname,
2265 warnx("unknown access method: %d", procstat->type);
2271 procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp, int *osrelp)
2277 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2279 warnx("can't read proc struct at %p for pid %d",
2280 kp->ki_paddr, kp->ki_pid);
2283 *osrelp = proc.p_osrel;
2288 procstat_getosrel_sysctl(pid_t pid, int *osrelp)
2294 name[1] = KERN_PROC;
2295 name[2] = KERN_PROC_OSREL;
2297 len = sizeof(*osrelp);
2298 error = sysctl(name, nitems(name), osrelp, &len, NULL, 0);
2299 if (error != 0 && errno != ESRCH)
2300 warn("sysctl: kern.proc.osrel: %d", pid);
2305 procstat_getosrel_core(struct procstat_core *core, int *osrelp)
2310 buf = procstat_core_get(core, PSC_TYPE_OSREL, NULL, &len);
2313 if (len < sizeof(*osrelp)) {
2323 procstat_getosrel(struct procstat *procstat, struct kinfo_proc *kp, int *osrelp)
2325 switch(procstat->type) {
2327 return (procstat_getosrel_kvm(procstat->kd, kp, osrelp));
2328 case PROCSTAT_SYSCTL:
2329 return (procstat_getosrel_sysctl(kp->ki_pid, osrelp));
2331 return (procstat_getosrel_core(procstat->core, osrelp));
2333 warnx("unknown access method: %d", procstat->type);
2338 #define PROC_AUXV_MAX 256
2340 #if __ELF_WORD_SIZE == 64
2341 static const char *elf32_sv_names[] = {
2347 is_elf32_sysctl(pid_t pid)
2351 static char sv_name[256];
2354 name[1] = KERN_PROC;
2355 name[2] = KERN_PROC_SV_NAME;
2357 len = sizeof(sv_name);
2358 error = sysctl(name, nitems(name), sv_name, &len, NULL, 0);
2359 if (error != 0 || len == 0)
2361 for (i = 0; i < sizeof(elf32_sv_names) / sizeof(*elf32_sv_names); i++) {
2362 if (strncmp(sv_name, elf32_sv_names[i], sizeof(sv_name)) == 0)
2368 static Elf_Auxinfo *
2369 procstat_getauxv32_sysctl(pid_t pid, unsigned int *cntp)
2372 Elf32_Auxinfo *auxv32;
2375 unsigned int i, count;
2379 name[1] = KERN_PROC;
2380 name[2] = KERN_PROC_AUXV;
2382 len = PROC_AUXV_MAX * sizeof(Elf32_Auxinfo);
2384 auxv32 = malloc(len);
2385 if (auxv32 == NULL) {
2386 warn("malloc(%zu)", len);
2389 if (sysctl(name, nitems(name), auxv32, &len, NULL, 0) == -1) {
2390 if (errno != ESRCH && errno != EPERM)
2391 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
2394 count = len / sizeof(Elf_Auxinfo);
2395 auxv = malloc(count * sizeof(Elf_Auxinfo));
2397 warn("malloc(%zu)", count * sizeof(Elf_Auxinfo));
2400 for (i = 0; i < count; i++) {
2402 * XXX: We expect that values for a_type on a 32-bit platform
2403 * are directly mapped to values on 64-bit one, which is not
2406 auxv[i].a_type = auxv32[i].a_type;
2407 ptr = &auxv32[i].a_un;
2408 auxv[i].a_un.a_val = *((uint32_t *)ptr);
2415 #endif /* __ELF_WORD_SIZE == 64 */
2417 static Elf_Auxinfo *
2418 procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp)
2424 #if __ELF_WORD_SIZE == 64
2425 if (is_elf32_sysctl(pid))
2426 return (procstat_getauxv32_sysctl(pid, cntp));
2429 name[1] = KERN_PROC;
2430 name[2] = KERN_PROC_AUXV;
2432 len = PROC_AUXV_MAX * sizeof(Elf_Auxinfo);
2435 warn("malloc(%zu)", len);
2438 if (sysctl(name, nitems(name), auxv, &len, NULL, 0) == -1) {
2439 if (errno != ESRCH && errno != EPERM)
2440 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
2444 *cntp = len / sizeof(Elf_Auxinfo);
2448 static Elf_Auxinfo *
2449 procstat_getauxv_core(struct procstat_core *core, unsigned int *cntp)
2454 auxv = procstat_core_get(core, PSC_TYPE_AUXV, NULL, &len);
2457 *cntp = len / sizeof(Elf_Auxinfo);
2462 procstat_getauxv(struct procstat *procstat, struct kinfo_proc *kp,
2465 switch(procstat->type) {
2467 warnx("kvm method is not supported");
2469 case PROCSTAT_SYSCTL:
2470 return (procstat_getauxv_sysctl(kp->ki_pid, cntp));
2472 return (procstat_getauxv_core(procstat->core, cntp));
2474 warnx("unknown access method: %d", procstat->type);
2480 procstat_freeauxv(struct procstat *procstat __unused, Elf_Auxinfo *auxv)
2486 static struct ptrace_lwpinfo *
2487 procstat_getptlwpinfo_core(struct procstat_core *core, unsigned int *cntp)
2490 struct ptrace_lwpinfo *pl;
2494 cnt = procstat_core_note_count(core, PSC_TYPE_PTLWPINFO);
2498 len = cnt * sizeof(*pl);
2499 buf = calloc(1, len);
2500 pl = procstat_core_get(core, PSC_TYPE_PTLWPINFO, buf, &len);
2505 *cntp = len / sizeof(*pl);
2509 struct ptrace_lwpinfo *
2510 procstat_getptlwpinfo(struct procstat *procstat, unsigned int *cntp)
2512 switch (procstat->type) {
2514 warnx("kvm method is not supported");
2516 case PROCSTAT_SYSCTL:
2517 warnx("sysctl method is not supported");
2520 return (procstat_getptlwpinfo_core(procstat->core, cntp));
2522 warnx("unknown access method: %d", procstat->type);
2528 procstat_freeptlwpinfo(struct procstat *procstat __unused,
2529 struct ptrace_lwpinfo *pl)
2534 static struct kinfo_kstack *
2535 procstat_getkstack_sysctl(pid_t pid, int *cntp)
2537 struct kinfo_kstack *kkstp;
2542 name[1] = KERN_PROC;
2543 name[2] = KERN_PROC_KSTACK;
2547 error = sysctl(name, nitems(name), NULL, &len, NULL, 0);
2548 if (error < 0 && errno != ESRCH && errno != EPERM && errno != ENOENT) {
2549 warn("sysctl: kern.proc.kstack: %d", pid);
2552 if (error == -1 && errno == ENOENT) {
2553 warnx("sysctl: kern.proc.kstack unavailable"
2554 " (options DDB or options STACK required in kernel)");
2559 kkstp = malloc(len);
2560 if (kkstp == NULL) {
2561 warn("malloc(%zu)", len);
2564 if (sysctl(name, nitems(name), kkstp, &len, NULL, 0) == -1) {
2565 warn("sysctl: kern.proc.pid: %d", pid);
2569 *cntp = len / sizeof(*kkstp);
2574 struct kinfo_kstack *
2575 procstat_getkstack(struct procstat *procstat, struct kinfo_proc *kp,
2578 switch(procstat->type) {
2580 warnx("kvm method is not supported");
2582 case PROCSTAT_SYSCTL:
2583 return (procstat_getkstack_sysctl(kp->ki_pid, cntp));
2585 warnx("core method is not supported");
2588 warnx("unknown access method: %d", procstat->type);
2594 procstat_freekstack(struct procstat *procstat __unused,
2595 struct kinfo_kstack *kkstp)