2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 2017 Dell EMC
5 * Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org>
6 * Copyright (c) 1988, 1993
7 * The Regents of the University of California. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
41 #include <sys/param.h>
44 #include <sys/resourcevar.h>
46 #include <sys/ucred.h>
51 #include <sys/vnode.h>
52 #include <sys/socket.h>
54 #include <sys/socketvar.h>
55 #include <sys/domain.h>
56 #include <sys/protosw.h>
59 #include <sys/unpcb.h>
60 #include <sys/sysctl.h>
62 #include <sys/filedesc.h>
63 #include <sys/queue.h>
69 #include <sys/capsicum.h>
70 #include <sys/ptrace.h>
72 #include <sys/mount.h>
73 #include <sys/filedesc.h>
75 #include <ufs/ufs/quota.h>
76 #include <ufs/ufs/inode.h>
77 #include <fs/devfs/devfs.h>
78 #include <fs/devfs/devfs_int.h>
80 #include <nfs/nfsproto.h>
81 #include <nfsclient/nfs.h>
82 #include <nfsclient/nfsnode.h>
85 #include <vm/vm_map.h>
86 #include <vm/vm_object.h>
88 #include <net/route.h>
89 #include <netinet/in.h>
90 #include <netinet/in_systm.h>
91 #include <netinet/ip.h>
93 #include <netinet/in_pcb.h>
111 #include <libprocstat.h>
112 #include "libprocstat_internal.h"
113 #include "common_kvm.h"
116 int statfs(const char *, struct statfs *); /* XXX */
118 #define PROCSTAT_KVM 1
119 #define PROCSTAT_SYSCTL 2
120 #define PROCSTAT_CORE 3
122 static char **getargv(struct procstat *procstat, struct kinfo_proc *kp,
123 size_t nchr, int env);
124 static char *getmnton(kvm_t *kd, struct mount *m);
125 static struct kinfo_vmentry * kinfo_getvmmap_core(struct procstat_core *core,
127 static Elf_Auxinfo *procstat_getauxv_core(struct procstat_core *core,
129 static Elf_Auxinfo *procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp);
130 static struct filestat_list *procstat_getfiles_kvm(
131 struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
132 static struct filestat_list *procstat_getfiles_sysctl(
133 struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
134 static int procstat_get_pipe_info_sysctl(struct filestat *fst,
135 struct pipestat *pipe, char *errbuf);
136 static int procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
137 struct pipestat *pipe, char *errbuf);
138 static int procstat_get_pts_info_sysctl(struct filestat *fst,
139 struct ptsstat *pts, char *errbuf);
140 static int procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
141 struct ptsstat *pts, char *errbuf);
142 static int procstat_get_sem_info_sysctl(struct filestat *fst,
143 struct semstat *sem, char *errbuf);
144 static int procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
145 struct semstat *sem, char *errbuf);
146 static int procstat_get_shm_info_sysctl(struct filestat *fst,
147 struct shmstat *shm, char *errbuf);
148 static int procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
149 struct shmstat *shm, char *errbuf);
150 static int procstat_get_socket_info_sysctl(struct filestat *fst,
151 struct sockstat *sock, char *errbuf);
152 static int procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
153 struct sockstat *sock, char *errbuf);
154 static int to_filestat_flags(int flags);
155 static int procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
156 struct vnstat *vn, char *errbuf);
157 static int procstat_get_vnode_info_sysctl(struct filestat *fst,
158 struct vnstat *vn, char *errbuf);
159 static gid_t *procstat_getgroups_core(struct procstat_core *core,
160 unsigned int *count);
161 static gid_t * procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp,
162 unsigned int *count);
163 static gid_t *procstat_getgroups_sysctl(pid_t pid, unsigned int *count);
164 static struct kinfo_kstack *procstat_getkstack_sysctl(pid_t pid,
166 static int procstat_getosrel_core(struct procstat_core *core,
168 static int procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp,
170 static int procstat_getosrel_sysctl(pid_t pid, int *osrelp);
171 static int procstat_getpathname_core(struct procstat_core *core,
172 char *pathname, size_t maxlen);
173 static int procstat_getpathname_sysctl(pid_t pid, char *pathname,
175 static int procstat_getrlimit_core(struct procstat_core *core, int which,
176 struct rlimit* rlimit);
177 static int procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp,
178 int which, struct rlimit* rlimit);
179 static int procstat_getrlimit_sysctl(pid_t pid, int which,
180 struct rlimit* rlimit);
181 static int procstat_getumask_core(struct procstat_core *core,
182 unsigned short *maskp);
183 static int procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp,
184 unsigned short *maskp);
185 static int procstat_getumask_sysctl(pid_t pid, unsigned short *maskp);
186 static int vntype2psfsttype(int type);
189 procstat_close(struct procstat *procstat)
193 if (procstat->type == PROCSTAT_KVM)
194 kvm_close(procstat->kd);
195 else if (procstat->type == PROCSTAT_CORE)
196 procstat_core_close(procstat->core);
197 procstat_freeargv(procstat);
198 procstat_freeenvv(procstat);
203 procstat_open_sysctl(void)
205 struct procstat *procstat;
207 procstat = calloc(1, sizeof(*procstat));
208 if (procstat == NULL) {
212 procstat->type = PROCSTAT_SYSCTL;
217 procstat_open_kvm(const char *nlistf, const char *memf)
219 struct procstat *procstat;
221 char buf[_POSIX2_LINE_MAX];
223 procstat = calloc(1, sizeof(*procstat));
224 if (procstat == NULL) {
228 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf);
230 warnx("kvm_openfiles(): %s", buf);
234 procstat->type = PROCSTAT_KVM;
240 procstat_open_core(const char *filename)
242 struct procstat *procstat;
243 struct procstat_core *core;
245 procstat = calloc(1, sizeof(*procstat));
246 if (procstat == NULL) {
250 core = procstat_core_open(filename);
255 procstat->type = PROCSTAT_CORE;
256 procstat->core = core;
261 procstat_getprocs(struct procstat *procstat, int what, int arg,
264 struct kinfo_proc *p0, *p;
273 if (procstat->type == PROCSTAT_KVM) {
275 p0 = kvm_getprocs(procstat->kd, what, arg, &cnt);
276 if (p0 == NULL || cnt <= 0)
279 len = *count * sizeof(*p);
282 warnx("malloc(%zu)", len);
287 } else if (procstat->type == PROCSTAT_SYSCTL) {
293 error = sysctl(name, nitems(name), NULL, &len, NULL, 0);
294 if (error < 0 && errno != EPERM) {
295 warn("sysctl(kern.proc)");
299 warnx("no processes?");
304 p = reallocf(p, len);
306 warnx("reallocf(%zu)", len);
310 error = sysctl(name, nitems(name), p, &len, NULL, 0);
311 } while (error < 0 && errno == ENOMEM && olen == len);
312 if (error < 0 && errno != EPERM) {
313 warn("sysctl(kern.proc)");
316 /* Perform simple consistency checks. */
317 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
318 warnx("kinfo_proc structure size mismatch (len = %zu)", len);
321 *count = len / sizeof(*p);
323 } else if (procstat->type == PROCSTAT_CORE) {
324 p = procstat_core_get(procstat->core, PSC_TYPE_PROC, NULL,
326 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
327 warnx("kinfo_proc structure size mismatch");
330 *count = len / sizeof(*p);
333 warnx("unknown access method: %d", procstat->type);
343 procstat_freeprocs(struct procstat *procstat __unused, struct kinfo_proc *p)
351 struct filestat_list *
352 procstat_getfiles(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
355 switch(procstat->type) {
357 return (procstat_getfiles_kvm(procstat, kp, mmapped));
358 case PROCSTAT_SYSCTL:
360 return (procstat_getfiles_sysctl(procstat, kp, mmapped));
362 warnx("unknown access method: %d", procstat->type);
368 procstat_freefiles(struct procstat *procstat, struct filestat_list *head)
370 struct filestat *fst, *tmp;
372 STAILQ_FOREACH_SAFE(fst, head, next, tmp) {
373 if (fst->fs_path != NULL)
378 if (procstat->vmentries != NULL) {
379 free(procstat->vmentries);
380 procstat->vmentries = NULL;
382 if (procstat->files != NULL) {
383 free(procstat->files);
384 procstat->files = NULL;
388 static struct filestat *
389 filestat_new_entry(void *typedep, int type, int fd, int fflags, int uflags,
390 int refcount, off_t offset, char *path, cap_rights_t *cap_rightsp)
392 struct filestat *entry;
394 entry = calloc(1, sizeof(*entry));
399 entry->fs_typedep = typedep;
400 entry->fs_fflags = fflags;
401 entry->fs_uflags = uflags;
403 entry->fs_type = type;
404 entry->fs_ref_count = refcount;
405 entry->fs_offset = offset;
406 entry->fs_path = path;
407 if (cap_rightsp != NULL)
408 entry->fs_cap_rights = *cap_rightsp;
410 cap_rights_init(&entry->fs_cap_rights);
414 static struct vnode *
415 getctty(kvm_t *kd, struct kinfo_proc *kp)
423 error = kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
426 warnx("can't read proc struct at %p for pid %d",
427 kp->ki_paddr, kp->ki_pid);
430 if (proc.p_pgrp == NULL)
432 error = kvm_read_all(kd, (unsigned long)proc.p_pgrp, &pgrp,
435 warnx("can't read pgrp struct at %p for pid %d",
436 proc.p_pgrp, kp->ki_pid);
439 error = kvm_read_all(kd, (unsigned long)pgrp.pg_session, &sess,
442 warnx("can't read session struct at %p for pid %d",
443 pgrp.pg_session, kp->ki_pid);
446 return (sess.s_ttyvp);
450 procstat_vm_map_reader(void *token, vm_map_entry_t addr, vm_map_entry_t dest)
455 return (kvm_read_all(kd, (unsigned long)addr, dest, sizeof(*dest)));
458 static struct filestat_list *
459 procstat_getfiles_kvm(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
462 struct filedesc filed;
463 struct pwddesc pathsd;
464 struct fdescenttbl *fdt;
466 unsigned long pwd_addr;
467 struct vm_map_entry vmentry;
468 struct vm_object object;
469 struct vmspace vmspace;
470 vm_map_entry_t entryp;
473 struct filestat *entry;
474 struct filestat_list *head;
488 if (kp->ki_fd == NULL || kp->ki_pd == NULL)
490 if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &filed,
492 warnx("can't read filedesc at %p", (void *)kp->ki_fd);
495 if (!kvm_read_all(kd, (unsigned long)kp->ki_pd, &pathsd,
497 warnx("can't read pwddesc at %p", (void *)kp->ki_pd);
501 pwd_addr = (unsigned long)(PWDDESC_KVM_LOAD_PWD(&pathsd));
503 if (!kvm_read_all(kd, pwd_addr, &pwd, sizeof(pwd))) {
504 warnx("can't read fd_pwd at %p", (void *)pwd_addr);
511 * Allocate list head.
513 head = malloc(sizeof(*head));
518 /* root directory vnode, if one. */
521 entry = filestat_new_entry(pwd.pwd_rdir, PS_FST_TYPE_VNODE, -1,
522 PS_FST_FFLAG_READ, PS_FST_UFLAG_RDIR, 0, 0, NULL, NULL);
524 STAILQ_INSERT_TAIL(head, entry, next);
526 /* current working directory vnode. */
528 entry = filestat_new_entry(pwd.pwd_cdir, PS_FST_TYPE_VNODE, -1,
529 PS_FST_FFLAG_READ, PS_FST_UFLAG_CDIR, 0, 0, NULL, NULL);
531 STAILQ_INSERT_TAIL(head, entry, next);
533 /* jail root, if any. */
535 entry = filestat_new_entry(pwd.pwd_jdir, PS_FST_TYPE_VNODE, -1,
536 PS_FST_FFLAG_READ, PS_FST_UFLAG_JAIL, 0, 0, NULL, NULL);
538 STAILQ_INSERT_TAIL(head, entry, next);
541 /* ktrace vnode, if one */
543 entry = filestat_new_entry(kp->ki_tracep, PS_FST_TYPE_VNODE, -1,
544 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
545 PS_FST_UFLAG_TRACE, 0, 0, NULL, NULL);
547 STAILQ_INSERT_TAIL(head, entry, next);
549 /* text vnode, if one */
551 entry = filestat_new_entry(kp->ki_textvp, PS_FST_TYPE_VNODE, -1,
552 PS_FST_FFLAG_READ, PS_FST_UFLAG_TEXT, 0, 0, NULL, NULL);
554 STAILQ_INSERT_TAIL(head, entry, next);
556 /* Controlling terminal. */
557 if ((vp = getctty(kd, kp)) != NULL) {
558 entry = filestat_new_entry(vp, PS_FST_TYPE_VNODE, -1,
559 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
560 PS_FST_UFLAG_CTTY, 0, 0, NULL, NULL);
562 STAILQ_INSERT_TAIL(head, entry, next);
565 if (!kvm_read_all(kd, (unsigned long)filed.fd_files, &nfiles,
567 warnx("can't read fd_files at %p", (void *)filed.fd_files);
571 fdt_size = sizeof(*fdt) + nfiles * sizeof(struct filedescent);
572 fdt = malloc(fdt_size);
574 warn("malloc(%zu)", fdt_size);
577 if (!kvm_read_all(kd, (unsigned long)filed.fd_files, fdt, fdt_size)) {
578 warnx("cannot read file structures at %p", (void *)filed.fd_files);
582 for (i = 0; i < nfiles; i++) {
583 if (fdt->fdt_ofiles[i].fde_file == NULL) {
586 if (!kvm_read_all(kd, (unsigned long)fdt->fdt_ofiles[i].fde_file, &file,
587 sizeof(struct file))) {
588 warnx("can't read file %d at %p", i,
589 (void *)fdt->fdt_ofiles[i].fde_file);
592 switch (file.f_type) {
594 type = PS_FST_TYPE_VNODE;
598 type = PS_FST_TYPE_SOCKET;
602 type = PS_FST_TYPE_PIPE;
606 type = PS_FST_TYPE_FIFO;
611 type = PS_FST_TYPE_PTS;
616 type = PS_FST_TYPE_SEM;
620 type = PS_FST_TYPE_SHM;
624 type = PS_FST_TYPE_PROCDESC;
628 type = PS_FST_TYPE_DEV;
632 type = PS_FST_TYPE_EVENTFD;
638 /* XXXRW: No capability rights support for kvm yet. */
639 entry = filestat_new_entry(data, type, i,
640 to_filestat_flags(file.f_flag), 0, 0, 0, NULL, NULL);
642 STAILQ_INSERT_TAIL(head, entry, next);
649 * Process mmapped files if requested.
652 if (!kvm_read_all(kd, (unsigned long)kp->ki_vmspace, &vmspace,
654 warnx("can't read vmspace at %p",
655 (void *)kp->ki_vmspace);
659 vmentry = vmspace.vm_map.header;
660 for (entryp = vm_map_entry_read_succ(kd, &vmentry, procstat_vm_map_reader);
661 entryp != NULL && entryp != &kp->ki_vmspace->vm_map.header;
662 entryp = vm_map_entry_read_succ(kd, &vmentry, procstat_vm_map_reader)) {
663 if (vmentry.eflags & MAP_ENTRY_IS_SUB_MAP)
665 if ((objp = vmentry.object.vm_object) == NULL)
667 for (; objp; objp = object.backing_object) {
668 if (!kvm_read_all(kd, (unsigned long)objp,
669 &object, sizeof(object))) {
670 warnx("can't read vm_object at %p",
676 /* We want only vnode objects. */
677 if (object.type != OBJT_VNODE)
680 prot = vmentry.protection;
682 if (prot & VM_PROT_READ)
683 fflags = PS_FST_FFLAG_READ;
684 if ((vmentry.eflags & MAP_ENTRY_COW) == 0 &&
685 prot & VM_PROT_WRITE)
686 fflags |= PS_FST_FFLAG_WRITE;
689 * Create filestat entry.
691 entry = filestat_new_entry(object.handle,
692 PS_FST_TYPE_VNODE, -1, fflags,
693 PS_FST_UFLAG_MMAP, 0, 0, NULL, NULL);
695 STAILQ_INSERT_TAIL(head, entry, next);
698 warnx("can't read vm_map_entry");
705 * kinfo types to filestat translation.
708 kinfo_type2fst(int kftype)
714 { KF_TYPE_PROCDESC, PS_FST_TYPE_PROCDESC },
715 { KF_TYPE_DEV, PS_FST_TYPE_DEV },
716 { KF_TYPE_FIFO, PS_FST_TYPE_FIFO },
717 { KF_TYPE_KQUEUE, PS_FST_TYPE_KQUEUE },
718 { KF_TYPE_MQUEUE, PS_FST_TYPE_MQUEUE },
719 { KF_TYPE_NONE, PS_FST_TYPE_NONE },
720 { KF_TYPE_PIPE, PS_FST_TYPE_PIPE },
721 { KF_TYPE_PTS, PS_FST_TYPE_PTS },
722 { KF_TYPE_SEM, PS_FST_TYPE_SEM },
723 { KF_TYPE_SHM, PS_FST_TYPE_SHM },
724 { KF_TYPE_SOCKET, PS_FST_TYPE_SOCKET },
725 { KF_TYPE_VNODE, PS_FST_TYPE_VNODE },
726 { KF_TYPE_EVENTFD, PS_FST_TYPE_EVENTFD },
727 { KF_TYPE_UNKNOWN, PS_FST_TYPE_UNKNOWN }
729 #define NKFTYPES (sizeof(kftypes2fst) / sizeof(*kftypes2fst))
732 for (i = 0; i < NKFTYPES; i++)
733 if (kftypes2fst[i].kf_type == kftype)
736 return (PS_FST_TYPE_UNKNOWN);
737 return (kftypes2fst[i].fst_type);
741 * kinfo flags to filestat translation.
744 kinfo_fflags2fst(int kfflags)
750 { KF_FLAG_APPEND, PS_FST_FFLAG_APPEND },
751 { KF_FLAG_ASYNC, PS_FST_FFLAG_ASYNC },
752 { KF_FLAG_CREAT, PS_FST_FFLAG_CREAT },
753 { KF_FLAG_DIRECT, PS_FST_FFLAG_DIRECT },
754 { KF_FLAG_EXCL, PS_FST_FFLAG_EXCL },
755 { KF_FLAG_EXEC, PS_FST_FFLAG_EXEC },
756 { KF_FLAG_EXLOCK, PS_FST_FFLAG_EXLOCK },
757 { KF_FLAG_FSYNC, PS_FST_FFLAG_SYNC },
758 { KF_FLAG_HASLOCK, PS_FST_FFLAG_HASLOCK },
759 { KF_FLAG_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
760 { KF_FLAG_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
761 { KF_FLAG_READ, PS_FST_FFLAG_READ },
762 { KF_FLAG_SHLOCK, PS_FST_FFLAG_SHLOCK },
763 { KF_FLAG_TRUNC, PS_FST_FFLAG_TRUNC },
764 { KF_FLAG_WRITE, PS_FST_FFLAG_WRITE }
766 #define NKFFLAGS (sizeof(kfflags2fst) / sizeof(*kfflags2fst))
771 for (i = 0; i < NKFFLAGS; i++)
772 if ((kfflags & kfflags2fst[i].kf_flag) != 0)
773 flags |= kfflags2fst[i].fst_flag;
778 kinfo_uflags2fst(int fd)
782 case KF_FD_TYPE_CTTY:
783 return (PS_FST_UFLAG_CTTY);
785 return (PS_FST_UFLAG_CDIR);
786 case KF_FD_TYPE_JAIL:
787 return (PS_FST_UFLAG_JAIL);
788 case KF_FD_TYPE_TEXT:
789 return (PS_FST_UFLAG_TEXT);
790 case KF_FD_TYPE_TRACE:
791 return (PS_FST_UFLAG_TRACE);
792 case KF_FD_TYPE_ROOT:
793 return (PS_FST_UFLAG_RDIR);
798 static struct kinfo_file *
799 kinfo_getfile_core(struct procstat_core *core, int *cntp)
804 struct kinfo_file *kif, *kp, *kf;
806 buf = procstat_core_get(core, PSC_TYPE_FILES, NULL, &len);
810 * XXXMG: The code below is just copy&past from libutil.
811 * The code duplication can be avoided if libutil
812 * is extended to provide something like:
813 * struct kinfo_file *kinfo_getfile_from_buf(const char *buf,
814 * size_t len, int *cntp);
817 /* Pass 1: count items */
822 kf = (struct kinfo_file *)(uintptr_t)bp;
823 if (kf->kf_structsize == 0)
825 bp += kf->kf_structsize;
829 kif = calloc(cnt, sizeof(*kif));
839 kf = (struct kinfo_file *)(uintptr_t)bp;
840 if (kf->kf_structsize == 0)
842 /* Copy/expand into pre-zeroed buffer */
843 memcpy(kp, kf, kf->kf_structsize);
844 /* Advance to next packed record */
845 bp += kf->kf_structsize;
846 /* Set field size to fixed length, advance */
847 kp->kf_structsize = sizeof(*kp);
852 return (kif); /* Caller must free() return value */
855 static struct filestat_list *
856 procstat_getfiles_sysctl(struct procstat *procstat, struct kinfo_proc *kp,
859 struct kinfo_file *kif, *files;
860 struct kinfo_vmentry *kve, *vmentries;
861 struct filestat_list *head;
862 struct filestat *entry;
868 cap_rights_t cap_rights;
871 if (kp->ki_fd == NULL)
873 switch(procstat->type) {
874 case PROCSTAT_SYSCTL:
875 files = kinfo_getfile(kp->ki_pid, &cnt);
878 files = kinfo_getfile_core(procstat->core, &cnt);
881 assert(!"invalid type");
883 if (files == NULL && errno != EPERM) {
884 warn("kinfo_getfile()");
887 procstat->files = files;
890 * Allocate list head.
892 head = malloc(sizeof(*head));
896 for (i = 0; i < cnt; i++) {
899 type = kinfo_type2fst(kif->kf_type);
900 fd = kif->kf_fd >= 0 ? kif->kf_fd : -1;
901 fflags = kinfo_fflags2fst(kif->kf_flags);
902 uflags = kinfo_uflags2fst(kif->kf_fd);
903 refcount = kif->kf_ref_count;
904 offset = kif->kf_offset;
905 if (*kif->kf_path != '\0')
906 path = strdup(kif->kf_path);
909 cap_rights = kif->kf_cap_rights;
912 * Create filestat entry.
914 entry = filestat_new_entry(kif, type, fd, fflags, uflags,
915 refcount, offset, path, &cap_rights);
917 STAILQ_INSERT_TAIL(head, entry, next);
920 vmentries = procstat_getvmmap(procstat, kp, &cnt);
921 procstat->vmentries = vmentries;
922 if (vmentries == NULL || cnt == 0)
924 for (i = 0; i < cnt; i++) {
926 if (kve->kve_type != KVME_TYPE_VNODE)
929 if (kve->kve_protection & KVME_PROT_READ)
930 fflags = PS_FST_FFLAG_READ;
931 if ((kve->kve_flags & KVME_FLAG_COW) == 0 &&
932 kve->kve_protection & KVME_PROT_WRITE)
933 fflags |= PS_FST_FFLAG_WRITE;
934 offset = kve->kve_offset;
935 refcount = kve->kve_ref_count;
936 if (*kve->kve_path != '\0')
937 path = strdup(kve->kve_path);
940 entry = filestat_new_entry(kve, PS_FST_TYPE_VNODE, -1,
941 fflags, PS_FST_UFLAG_MMAP, refcount, offset, path,
944 STAILQ_INSERT_TAIL(head, entry, next);
952 procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst,
953 struct pipestat *ps, char *errbuf)
957 if (procstat->type == PROCSTAT_KVM) {
958 return (procstat_get_pipe_info_kvm(procstat->kd, fst, ps,
960 } else if (procstat->type == PROCSTAT_SYSCTL ||
961 procstat->type == PROCSTAT_CORE) {
962 return (procstat_get_pipe_info_sysctl(fst, ps, errbuf));
964 warnx("unknown access method: %d", procstat->type);
966 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
972 procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
973 struct pipestat *ps, char *errbuf)
981 bzero(ps, sizeof(*ps));
982 pipep = fst->fs_typedep;
985 if (!kvm_read_all(kd, (unsigned long)pipep, &pi, sizeof(struct pipe))) {
986 warnx("can't read pipe at %p", (void *)pipep);
989 ps->addr = (uintptr_t)pipep;
990 ps->peer = (uintptr_t)pi.pipe_peer;
991 ps->buffer_cnt = pi.pipe_buffer.cnt;
996 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1001 procstat_get_pipe_info_sysctl(struct filestat *fst, struct pipestat *ps,
1002 char *errbuf __unused)
1004 struct kinfo_file *kif;
1008 bzero(ps, sizeof(*ps));
1009 kif = fst->fs_typedep;
1012 ps->addr = kif->kf_un.kf_pipe.kf_pipe_addr;
1013 ps->peer = kif->kf_un.kf_pipe.kf_pipe_peer;
1014 ps->buffer_cnt = kif->kf_un.kf_pipe.kf_pipe_buffer_cnt;
1019 procstat_get_pts_info(struct procstat *procstat, struct filestat *fst,
1020 struct ptsstat *pts, char *errbuf)
1024 if (procstat->type == PROCSTAT_KVM) {
1025 return (procstat_get_pts_info_kvm(procstat->kd, fst, pts,
1027 } else if (procstat->type == PROCSTAT_SYSCTL ||
1028 procstat->type == PROCSTAT_CORE) {
1029 return (procstat_get_pts_info_sysctl(fst, pts, errbuf));
1031 warnx("unknown access method: %d", procstat->type);
1033 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1039 procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
1040 struct ptsstat *pts, char *errbuf)
1048 bzero(pts, sizeof(*pts));
1049 ttyp = fst->fs_typedep;
1052 if (!kvm_read_all(kd, (unsigned long)ttyp, &tty, sizeof(struct tty))) {
1053 warnx("can't read tty at %p", (void *)ttyp);
1056 pts->dev = dev2udev(kd, tty.t_dev);
1057 (void)kdevtoname(kd, tty.t_dev, pts->devname);
1062 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1067 procstat_get_pts_info_sysctl(struct filestat *fst, struct ptsstat *pts,
1068 char *errbuf __unused)
1070 struct kinfo_file *kif;
1074 bzero(pts, sizeof(*pts));
1075 kif = fst->fs_typedep;
1078 pts->dev = kif->kf_un.kf_pts.kf_pts_dev;
1079 strlcpy(pts->devname, kif->kf_path, sizeof(pts->devname));
1084 procstat_get_sem_info(struct procstat *procstat, struct filestat *fst,
1085 struct semstat *sem, char *errbuf)
1089 if (procstat->type == PROCSTAT_KVM) {
1090 return (procstat_get_sem_info_kvm(procstat->kd, fst, sem,
1092 } else if (procstat->type == PROCSTAT_SYSCTL ||
1093 procstat->type == PROCSTAT_CORE) {
1094 return (procstat_get_sem_info_sysctl(fst, sem, errbuf));
1096 warnx("unknown access method: %d", procstat->type);
1098 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1104 procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
1105 struct semstat *sem, char *errbuf)
1115 bzero(sem, sizeof(*sem));
1116 ksemp = fst->fs_typedep;
1119 if (!kvm_read_all(kd, (unsigned long)ksemp, &ksem,
1120 sizeof(struct ksem))) {
1121 warnx("can't read ksem at %p", (void *)ksemp);
1124 sem->mode = S_IFREG | ksem.ks_mode;
1125 sem->value = ksem.ks_value;
1126 if (fst->fs_path == NULL && ksem.ks_path != NULL) {
1127 path = malloc(MAXPATHLEN);
1128 for (i = 0; i < MAXPATHLEN - 1; i++) {
1129 if (!kvm_read_all(kd, (unsigned long)ksem.ks_path + i,
1132 if (path[i] == '\0')
1139 fst->fs_path = path;
1145 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1150 procstat_get_sem_info_sysctl(struct filestat *fst, struct semstat *sem,
1151 char *errbuf __unused)
1153 struct kinfo_file *kif;
1157 bzero(sem, sizeof(*sem));
1158 kif = fst->fs_typedep;
1161 sem->value = kif->kf_un.kf_sem.kf_sem_value;
1162 sem->mode = kif->kf_un.kf_sem.kf_sem_mode;
1167 procstat_get_shm_info(struct procstat *procstat, struct filestat *fst,
1168 struct shmstat *shm, char *errbuf)
1172 if (procstat->type == PROCSTAT_KVM) {
1173 return (procstat_get_shm_info_kvm(procstat->kd, fst, shm,
1175 } else if (procstat->type == PROCSTAT_SYSCTL ||
1176 procstat->type == PROCSTAT_CORE) {
1177 return (procstat_get_shm_info_sysctl(fst, shm, errbuf));
1179 warnx("unknown access method: %d", procstat->type);
1181 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1187 procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
1188 struct shmstat *shm, char *errbuf)
1198 bzero(shm, sizeof(*shm));
1199 shmfdp = fst->fs_typedep;
1202 if (!kvm_read_all(kd, (unsigned long)shmfdp, &shmfd,
1203 sizeof(struct shmfd))) {
1204 warnx("can't read shmfd at %p", (void *)shmfdp);
1207 shm->mode = S_IFREG | shmfd.shm_mode;
1208 shm->size = shmfd.shm_size;
1209 if (fst->fs_path == NULL && shmfd.shm_path != NULL) {
1210 path = malloc(MAXPATHLEN);
1211 for (i = 0; i < MAXPATHLEN - 1; i++) {
1212 if (!kvm_read_all(kd, (unsigned long)shmfd.shm_path + i,
1215 if (path[i] == '\0')
1222 fst->fs_path = path;
1228 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1233 procstat_get_shm_info_sysctl(struct filestat *fst, struct shmstat *shm,
1234 char *errbuf __unused)
1236 struct kinfo_file *kif;
1240 bzero(shm, sizeof(*shm));
1241 kif = fst->fs_typedep;
1244 shm->size = kif->kf_un.kf_file.kf_file_size;
1245 shm->mode = kif->kf_un.kf_file.kf_file_mode;
1250 procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst,
1251 struct vnstat *vn, char *errbuf)
1255 if (procstat->type == PROCSTAT_KVM) {
1256 return (procstat_get_vnode_info_kvm(procstat->kd, fst, vn,
1258 } else if (procstat->type == PROCSTAT_SYSCTL ||
1259 procstat->type == PROCSTAT_CORE) {
1260 return (procstat_get_vnode_info_sysctl(fst, vn, errbuf));
1262 warnx("unknown access method: %d", procstat->type);
1264 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1270 procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
1271 struct vnstat *vn, char *errbuf)
1273 /* Filesystem specific handlers. */
1274 #define FSTYPE(fst) {#fst, fst##_filestat}
1277 int (*handler)(kvm_t *kd, struct vnode *vp,
1287 #ifdef LIBPROCSTAT_ZFS
1291 #define NTYPES (sizeof(fstypes) / sizeof(*fstypes))
1301 vp = fst->fs_typedep;
1304 error = kvm_read_all(kd, (unsigned long)vp, &vnode, sizeof(vnode));
1306 warnx("can't read vnode at %p", (void *)vp);
1309 bzero(vn, sizeof(*vn));
1310 vn->vn_type = vntype2psfsttype(vnode.v_type);
1311 if (vnode.v_type == VNON || vnode.v_type == VBAD)
1313 error = kvm_read_all(kd, (unsigned long)vnode.v_lock.lock_object.lo_name,
1314 tagstr, sizeof(tagstr));
1316 warnx("can't read lo_name at %p", (void *)vp);
1319 tagstr[sizeof(tagstr) - 1] = '\0';
1322 * Find appropriate handler.
1324 for (i = 0; i < NTYPES; i++)
1325 if (!strcmp(fstypes[i].tag, tagstr)) {
1326 if (fstypes[i].handler(kd, &vnode, vn) != 0) {
1333 snprintf(errbuf, _POSIX2_LINE_MAX, "?(%s)", tagstr);
1336 vn->vn_mntdir = getmnton(kd, vnode.v_mount);
1337 if ((vnode.v_type == VBLK || vnode.v_type == VCHR) &&
1338 vnode.v_rdev != NULL){
1339 vn->vn_dev = dev2udev(kd, vnode.v_rdev);
1340 (void)kdevtoname(kd, vnode.v_rdev, vn->vn_devname);
1348 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1353 * kinfo vnode type to filestat translation.
1356 kinfo_vtype2fst(int kfvtype)
1361 } kfvtypes2fst[] = {
1362 { KF_VTYPE_VBAD, PS_FST_VTYPE_VBAD },
1363 { KF_VTYPE_VBLK, PS_FST_VTYPE_VBLK },
1364 { KF_VTYPE_VCHR, PS_FST_VTYPE_VCHR },
1365 { KF_VTYPE_VDIR, PS_FST_VTYPE_VDIR },
1366 { KF_VTYPE_VFIFO, PS_FST_VTYPE_VFIFO },
1367 { KF_VTYPE_VLNK, PS_FST_VTYPE_VLNK },
1368 { KF_VTYPE_VNON, PS_FST_VTYPE_VNON },
1369 { KF_VTYPE_VREG, PS_FST_VTYPE_VREG },
1370 { KF_VTYPE_VSOCK, PS_FST_VTYPE_VSOCK }
1372 #define NKFVTYPES (sizeof(kfvtypes2fst) / sizeof(*kfvtypes2fst))
1375 for (i = 0; i < NKFVTYPES; i++)
1376 if (kfvtypes2fst[i].kf_vtype == kfvtype)
1379 return (PS_FST_VTYPE_UNKNOWN);
1380 return (kfvtypes2fst[i].fst_vtype);
1384 procstat_get_vnode_info_sysctl(struct filestat *fst, struct vnstat *vn,
1387 struct statfs stbuf;
1388 struct kinfo_file *kif;
1389 struct kinfo_vmentry *kve;
1401 bzero(vn, sizeof(*vn));
1402 if (fst->fs_typedep == NULL)
1404 if (fst->fs_uflags & PS_FST_UFLAG_MMAP) {
1405 kve = fst->fs_typedep;
1406 fileid = kve->kve_vn_fileid;
1407 fsid = kve->kve_vn_fsid;
1408 mode = kve->kve_vn_mode;
1409 path = kve->kve_path;
1410 rdev = kve->kve_vn_rdev;
1411 size = kve->kve_vn_size;
1412 vntype = kinfo_vtype2fst(kve->kve_vn_type);
1413 status = kve->kve_status;
1415 kif = fst->fs_typedep;
1416 fileid = kif->kf_un.kf_file.kf_file_fileid;
1417 fsid = kif->kf_un.kf_file.kf_file_fsid;
1418 mode = kif->kf_un.kf_file.kf_file_mode;
1419 path = kif->kf_path;
1420 rdev = kif->kf_un.kf_file.kf_file_rdev;
1421 size = kif->kf_un.kf_file.kf_file_size;
1422 vntype = kinfo_vtype2fst(kif->kf_vnode_type);
1423 status = kif->kf_status;
1425 vn->vn_type = vntype;
1426 if (vntype == PS_FST_VTYPE_VNON || vntype == PS_FST_VTYPE_VBAD)
1428 if ((status & KF_ATTR_VALID) == 0) {
1429 if (errbuf != NULL) {
1430 snprintf(errbuf, _POSIX2_LINE_MAX,
1431 "? (no info available)");
1435 if (path && *path) {
1436 statfs(path, &stbuf);
1437 vn->vn_mntdir = strdup(stbuf.f_mntonname);
1439 vn->vn_mntdir = strdup("-");
1441 if (vntype == PS_FST_VTYPE_VBLK) {
1442 name = devname(rdev, S_IFBLK);
1444 strlcpy(vn->vn_devname, name,
1445 sizeof(vn->vn_devname));
1446 } else if (vntype == PS_FST_VTYPE_VCHR) {
1447 name = devname(vn->vn_dev, S_IFCHR);
1449 strlcpy(vn->vn_devname, name,
1450 sizeof(vn->vn_devname));
1453 vn->vn_fileid = fileid;
1460 procstat_get_socket_info(struct procstat *procstat, struct filestat *fst,
1461 struct sockstat *sock, char *errbuf)
1465 if (procstat->type == PROCSTAT_KVM) {
1466 return (procstat_get_socket_info_kvm(procstat->kd, fst, sock,
1468 } else if (procstat->type == PROCSTAT_SYSCTL ||
1469 procstat->type == PROCSTAT_CORE) {
1470 return (procstat_get_socket_info_sysctl(fst, sock, errbuf));
1472 warnx("unknown access method: %d", procstat->type);
1474 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1480 procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
1481 struct sockstat *sock, char *errbuf)
1485 struct protosw proto;
1494 bzero(sock, sizeof(*sock));
1495 so = fst->fs_typedep;
1498 sock->so_addr = (uintptr_t)so;
1499 /* fill in socket */
1500 if (!kvm_read_all(kd, (unsigned long)so, &s,
1501 sizeof(struct socket))) {
1502 warnx("can't read sock at %p", (void *)so);
1505 /* fill in protosw entry */
1506 if (!kvm_read_all(kd, (unsigned long)s.so_proto, &proto,
1507 sizeof(struct protosw))) {
1508 warnx("can't read protosw at %p", (void *)s.so_proto);
1511 /* fill in domain */
1512 if (!kvm_read_all(kd, (unsigned long)proto.pr_domain, &dom,
1513 sizeof(struct domain))) {
1514 warnx("can't read domain at %p",
1515 (void *)proto.pr_domain);
1518 if ((len = kvm_read(kd, (unsigned long)dom.dom_name, sock->dname,
1519 sizeof(sock->dname) - 1)) < 0) {
1520 warnx("can't read domain name at %p", (void *)dom.dom_name);
1521 sock->dname[0] = '\0';
1524 sock->dname[len] = '\0';
1527 * Fill in known data.
1529 sock->type = s.so_type;
1530 sock->proto = proto.pr_protocol;
1531 sock->dom_family = dom.dom_family;
1532 sock->so_pcb = (uintptr_t)s.so_pcb;
1535 * Protocol specific data.
1537 switch(dom.dom_family) {
1540 if (proto.pr_protocol == IPPROTO_TCP) {
1542 if (kvm_read(kd, (u_long)s.so_pcb,
1543 (char *)&inpcb, sizeof(struct inpcb))
1544 != sizeof(struct inpcb)) {
1545 warnx("can't read inpcb at %p",
1549 (uintptr_t)inpcb.inp_ppcb;
1550 sock->sendq = s.so_snd.sb_ccc;
1551 sock->recvq = s.so_rcv.sb_ccc;
1557 if (kvm_read(kd, (u_long)s.so_pcb, (char *)&unpcb,
1558 sizeof(struct unpcb)) != sizeof(struct unpcb)){
1559 warnx("can't read unpcb at %p",
1561 } else if (unpcb.unp_conn) {
1562 sock->so_rcv_sb_state = s.so_rcv.sb_state;
1563 sock->so_snd_sb_state = s.so_snd.sb_state;
1564 sock->unp_conn = (uintptr_t)unpcb.unp_conn;
1565 sock->sendq = s.so_snd.sb_ccc;
1566 sock->recvq = s.so_rcv.sb_ccc;
1577 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1582 procstat_get_socket_info_sysctl(struct filestat *fst, struct sockstat *sock,
1583 char *errbuf __unused)
1585 struct kinfo_file *kif;
1589 bzero(sock, sizeof(*sock));
1590 kif = fst->fs_typedep;
1595 * Fill in known data.
1597 sock->type = kif->kf_sock_type;
1598 sock->proto = kif->kf_sock_protocol;
1599 sock->dom_family = kif->kf_sock_domain;
1600 sock->so_pcb = kif->kf_un.kf_sock.kf_sock_pcb;
1601 strlcpy(sock->dname, kif->kf_path, sizeof(sock->dname));
1602 bcopy(&kif->kf_un.kf_sock.kf_sa_local, &sock->sa_local,
1603 kif->kf_un.kf_sock.kf_sa_local.ss_len);
1604 bcopy(&kif->kf_un.kf_sock.kf_sa_peer, &sock->sa_peer,
1605 kif->kf_un.kf_sock.kf_sa_peer.ss_len);
1608 * Protocol specific data.
1610 switch(sock->dom_family) {
1613 if (sock->proto == IPPROTO_TCP) {
1614 sock->inp_ppcb = kif->kf_un.kf_sock.kf_sock_inpcb;
1615 sock->sendq = kif->kf_un.kf_sock.kf_sock_sendq;
1616 sock->recvq = kif->kf_un.kf_sock.kf_sock_recvq;
1620 if (kif->kf_un.kf_sock.kf_sock_unpconn != 0) {
1621 sock->so_rcv_sb_state =
1622 kif->kf_un.kf_sock.kf_sock_rcv_sb_state;
1623 sock->so_snd_sb_state =
1624 kif->kf_un.kf_sock.kf_sock_snd_sb_state;
1626 kif->kf_un.kf_sock.kf_sock_unpconn;
1627 sock->sendq = kif->kf_un.kf_sock.kf_sock_sendq;
1628 sock->recvq = kif->kf_un.kf_sock.kf_sock_recvq;
1638 * Descriptor flags to filestat translation.
1641 to_filestat_flags(int flags)
1647 { FREAD, PS_FST_FFLAG_READ },
1648 { FWRITE, PS_FST_FFLAG_WRITE },
1649 { O_APPEND, PS_FST_FFLAG_APPEND },
1650 { O_ASYNC, PS_FST_FFLAG_ASYNC },
1651 { O_CREAT, PS_FST_FFLAG_CREAT },
1652 { O_DIRECT, PS_FST_FFLAG_DIRECT },
1653 { O_EXCL, PS_FST_FFLAG_EXCL },
1654 { O_EXEC, PS_FST_FFLAG_EXEC },
1655 { O_EXLOCK, PS_FST_FFLAG_EXLOCK },
1656 { O_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
1657 { O_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
1658 { O_SHLOCK, PS_FST_FFLAG_SHLOCK },
1659 { O_SYNC, PS_FST_FFLAG_SYNC },
1660 { O_TRUNC, PS_FST_FFLAG_TRUNC }
1662 #define NFSTFLAGS (sizeof(fstflags) / sizeof(*fstflags))
1667 for (i = 0; i < NFSTFLAGS; i++)
1668 if (flags & fstflags[i].flag)
1669 fst_flags |= fstflags[i].fst_flag;
1674 * Vnode type to filestate translation.
1677 vntype2psfsttype(int type)
1683 { VBAD, PS_FST_VTYPE_VBAD },
1684 { VBLK, PS_FST_VTYPE_VBLK },
1685 { VCHR, PS_FST_VTYPE_VCHR },
1686 { VDIR, PS_FST_VTYPE_VDIR },
1687 { VFIFO, PS_FST_VTYPE_VFIFO },
1688 { VLNK, PS_FST_VTYPE_VLNK },
1689 { VNON, PS_FST_VTYPE_VNON },
1690 { VREG, PS_FST_VTYPE_VREG },
1691 { VSOCK, PS_FST_VTYPE_VSOCK }
1693 #define NVFTYPES (sizeof(vt2fst) / sizeof(*vt2fst))
1694 unsigned int i, fst_type;
1696 fst_type = PS_FST_VTYPE_UNKNOWN;
1697 for (i = 0; i < NVFTYPES; i++) {
1698 if (type == vt2fst[i].vtype) {
1699 fst_type = vt2fst[i].fst_vtype;
1707 getmnton(kvm_t *kd, struct mount *m)
1710 static struct mtab {
1713 char mntonname[MNAMELEN + 1];
1717 for (mt = mhead; mt != NULL; mt = mt->next)
1719 return (mt->mntonname);
1720 if (!kvm_read_all(kd, (unsigned long)m, &mnt, sizeof(struct mount))) {
1721 warnx("can't read mount table at %p", (void *)m);
1724 if ((mt = malloc(sizeof (struct mtab))) == NULL)
1727 bcopy(&mnt.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
1728 mt->mntonname[MNAMELEN] = '\0';
1731 return (mt->mntonname);
1735 * Auxiliary structures and functions to get process environment or
1736 * command line arguments.
1745 static struct argvec *
1746 argvec_alloc(size_t bufsize)
1750 av = malloc(sizeof(*av));
1753 av->bufsize = bufsize;
1754 av->buf = malloc(av->bufsize);
1755 if (av->buf == NULL) {
1760 av->argv = malloc(sizeof(char *) * av->argc);
1761 if (av->argv == NULL) {
1770 argvec_free(struct argvec * av)
1779 getargv(struct procstat *procstat, struct kinfo_proc *kp, size_t nchr, int env)
1781 int error, name[4], argc, i;
1782 struct argvec *av, **avp;
1789 if (procstat->type == PROCSTAT_KVM) {
1790 warnx("can't use kvm access method");
1793 if (procstat->type != PROCSTAT_SYSCTL &&
1794 procstat->type != PROCSTAT_CORE) {
1795 warnx("unknown access method: %d", procstat->type);
1799 if (nchr == 0 || nchr > ARG_MAX)
1802 avp = (struct argvec **)(env ? &procstat->argv : &procstat->envv);
1807 av = argvec_alloc(nchr);
1810 warn("malloc(%zu)", nchr);
1814 } else if (av->bufsize < nchr) {
1815 av->buf = reallocf(av->buf, nchr);
1816 if (av->buf == NULL) {
1817 warn("malloc(%zu)", nchr);
1821 if (procstat->type == PROCSTAT_SYSCTL) {
1823 name[1] = KERN_PROC;
1824 name[2] = env ? KERN_PROC_ENV : KERN_PROC_ARGS;
1825 name[3] = kp->ki_pid;
1827 error = sysctl(name, nitems(name), av->buf, &len, NULL, 0);
1828 if (error != 0 && errno != ESRCH && errno != EPERM)
1829 warn("sysctl(kern.proc.%s)", env ? "env" : "args");
1830 if (error != 0 || len == 0)
1832 } else /* procstat->type == PROCSTAT_CORE */ {
1833 type = env ? PSC_TYPE_ENVV : PSC_TYPE_ARGV;
1835 if (procstat_core_get(procstat->core, type, av->buf, &len)
1844 for (p = av->buf; p < av->buf + len; p += strlen(p) + 1) {
1850 argv = realloc(argv, sizeof(char *) * argc);
1852 warn("malloc(%zu)", sizeof(char *) * argc);
1864 * Return process command line arguments.
1867 procstat_getargv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
1870 return (getargv(procstat, p, nchr, 0));
1874 * Free the buffer allocated by procstat_getargv().
1877 procstat_freeargv(struct procstat *procstat)
1880 if (procstat->argv != NULL) {
1881 argvec_free(procstat->argv);
1882 procstat->argv = NULL;
1887 * Return process environment.
1890 procstat_getenvv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
1893 return (getargv(procstat, p, nchr, 1));
1897 * Free the buffer allocated by procstat_getenvv().
1900 procstat_freeenvv(struct procstat *procstat)
1902 if (procstat->envv != NULL) {
1903 argvec_free(procstat->envv);
1904 procstat->envv = NULL;
1908 static struct kinfo_vmentry *
1909 kinfo_getvmmap_core(struct procstat_core *core, int *cntp)
1913 char *buf, *bp, *eb;
1914 struct kinfo_vmentry *kiv, *kp, *kv;
1916 buf = procstat_core_get(core, PSC_TYPE_VMMAP, NULL, &len);
1921 * XXXMG: The code below is just copy&past from libutil.
1922 * The code duplication can be avoided if libutil
1923 * is extended to provide something like:
1924 * struct kinfo_vmentry *kinfo_getvmmap_from_buf(const char *buf,
1925 * size_t len, int *cntp);
1928 /* Pass 1: count items */
1933 kv = (struct kinfo_vmentry *)(uintptr_t)bp;
1934 if (kv->kve_structsize == 0)
1936 bp += kv->kve_structsize;
1940 kiv = calloc(cnt, sizeof(*kiv));
1948 /* Pass 2: unpack */
1950 kv = (struct kinfo_vmentry *)(uintptr_t)bp;
1951 if (kv->kve_structsize == 0)
1953 /* Copy/expand into pre-zeroed buffer */
1954 memcpy(kp, kv, kv->kve_structsize);
1955 /* Advance to next packed record */
1956 bp += kv->kve_structsize;
1957 /* Set field size to fixed length, advance */
1958 kp->kve_structsize = sizeof(*kp);
1963 return (kiv); /* Caller must free() return value */
1966 struct kinfo_vmentry *
1967 procstat_getvmmap(struct procstat *procstat, struct kinfo_proc *kp,
1971 switch(procstat->type) {
1973 warnx("kvm method is not supported");
1975 case PROCSTAT_SYSCTL:
1976 return (kinfo_getvmmap(kp->ki_pid, cntp));
1978 return (kinfo_getvmmap_core(procstat->core, cntp));
1980 warnx("unknown access method: %d", procstat->type);
1986 procstat_freevmmap(struct procstat *procstat __unused,
1987 struct kinfo_vmentry *vmmap)
1994 procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned int *cntp)
2003 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2005 warnx("can't read proc struct at %p for pid %d",
2006 kp->ki_paddr, kp->ki_pid);
2009 if (proc.p_ucred == NOCRED)
2011 if (!kvm_read_all(kd, (unsigned long)proc.p_ucred, &ucred,
2013 warnx("can't read ucred struct at %p for pid %d",
2014 proc.p_ucred, kp->ki_pid);
2017 len = ucred.cr_ngroups * sizeof(gid_t);
2018 groups = malloc(len);
2019 if (groups == NULL) {
2020 warn("malloc(%zu)", len);
2023 if (!kvm_read_all(kd, (unsigned long)ucred.cr_groups, groups, len)) {
2024 warnx("can't read groups at %p for pid %d",
2025 ucred.cr_groups, kp->ki_pid);
2029 *cntp = ucred.cr_ngroups;
2034 procstat_getgroups_sysctl(pid_t pid, unsigned int *cntp)
2042 mib[2] = KERN_PROC_GROUPS;
2044 len = (sysconf(_SC_NGROUPS_MAX) + 1) * sizeof(gid_t);
2045 groups = malloc(len);
2046 if (groups == NULL) {
2047 warn("malloc(%zu)", len);
2050 if (sysctl(mib, nitems(mib), groups, &len, NULL, 0) == -1) {
2051 warn("sysctl: kern.proc.groups: %d", pid);
2055 *cntp = len / sizeof(gid_t);
2060 procstat_getgroups_core(struct procstat_core *core, unsigned int *cntp)
2065 groups = procstat_core_get(core, PSC_TYPE_GROUPS, NULL, &len);
2068 *cntp = len / sizeof(gid_t);
2073 procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp,
2076 switch(procstat->type) {
2078 return (procstat_getgroups_kvm(procstat->kd, kp, cntp));
2079 case PROCSTAT_SYSCTL:
2080 return (procstat_getgroups_sysctl(kp->ki_pid, cntp));
2082 return (procstat_getgroups_core(procstat->core, cntp));
2084 warnx("unknown access method: %d", procstat->type);
2090 procstat_freegroups(struct procstat *procstat __unused, gid_t *groups)
2097 procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned short *maskp)
2103 if (kp->ki_pd == NULL)
2105 if (!kvm_read_all(kd, (unsigned long)kp->ki_pd, &pd, sizeof(pd))) {
2106 warnx("can't read pwddesc at %p for pid %d", kp->ki_pd,
2110 *maskp = pd.pd_cmask;
2115 procstat_getumask_sysctl(pid_t pid, unsigned short *maskp)
2123 mib[2] = KERN_PROC_UMASK;
2125 len = sizeof(*maskp);
2126 error = sysctl(mib, nitems(mib), maskp, &len, NULL, 0);
2127 if (error != 0 && errno != ESRCH && errno != EPERM)
2128 warn("sysctl: kern.proc.umask: %d", pid);
2133 procstat_getumask_core(struct procstat_core *core, unsigned short *maskp)
2136 unsigned short *buf;
2138 buf = procstat_core_get(core, PSC_TYPE_UMASK, NULL, &len);
2141 if (len < sizeof(*maskp)) {
2151 procstat_getumask(struct procstat *procstat, struct kinfo_proc *kp,
2152 unsigned short *maskp)
2154 switch(procstat->type) {
2156 return (procstat_getumask_kvm(procstat->kd, kp, maskp));
2157 case PROCSTAT_SYSCTL:
2158 return (procstat_getumask_sysctl(kp->ki_pid, maskp));
2160 return (procstat_getumask_core(procstat->core, maskp));
2162 warnx("unknown access method: %d", procstat->type);
2168 procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp, int which,
2169 struct rlimit* rlimit)
2172 unsigned long offset;
2176 assert(which >= 0 && which < RLIM_NLIMITS);
2177 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2179 warnx("can't read proc struct at %p for pid %d",
2180 kp->ki_paddr, kp->ki_pid);
2183 if (proc.p_limit == NULL)
2185 offset = (unsigned long)proc.p_limit + sizeof(struct rlimit) * which;
2186 if (!kvm_read_all(kd, offset, rlimit, sizeof(*rlimit))) {
2187 warnx("can't read rlimit struct at %p for pid %d",
2188 (void *)offset, kp->ki_pid);
2195 procstat_getrlimit_sysctl(pid_t pid, int which, struct rlimit* rlimit)
2201 name[1] = KERN_PROC;
2202 name[2] = KERN_PROC_RLIMIT;
2205 len = sizeof(struct rlimit);
2206 error = sysctl(name, nitems(name), rlimit, &len, NULL, 0);
2207 if (error < 0 && errno != ESRCH) {
2208 warn("sysctl: kern.proc.rlimit: %d", pid);
2211 if (error < 0 || len != sizeof(struct rlimit))
2217 procstat_getrlimit_core(struct procstat_core *core, int which,
2218 struct rlimit* rlimit)
2221 struct rlimit* rlimits;
2223 if (which < 0 || which >= RLIM_NLIMITS) {
2225 warn("getrlimit: which");
2228 rlimits = procstat_core_get(core, PSC_TYPE_RLIMIT, NULL, &len);
2229 if (rlimits == NULL)
2231 if (len < sizeof(struct rlimit) * RLIM_NLIMITS) {
2235 *rlimit = rlimits[which];
2241 procstat_getrlimit(struct procstat *procstat, struct kinfo_proc *kp, int which,
2242 struct rlimit* rlimit)
2244 switch(procstat->type) {
2246 return (procstat_getrlimit_kvm(procstat->kd, kp, which,
2248 case PROCSTAT_SYSCTL:
2249 return (procstat_getrlimit_sysctl(kp->ki_pid, which, rlimit));
2251 return (procstat_getrlimit_core(procstat->core, which, rlimit));
2253 warnx("unknown access method: %d", procstat->type);
2259 procstat_getpathname_sysctl(pid_t pid, char *pathname, size_t maxlen)
2265 name[1] = KERN_PROC;
2266 name[2] = KERN_PROC_PATHNAME;
2269 error = sysctl(name, nitems(name), pathname, &len, NULL, 0);
2270 if (error != 0 && errno != ESRCH)
2271 warn("sysctl: kern.proc.pathname: %d", pid);
2278 procstat_getpathname_core(struct procstat_core *core, char *pathname,
2281 struct kinfo_file *files;
2284 files = kinfo_getfile_core(core, &cnt);
2288 for (i = 0; i < cnt; i++) {
2289 if (files[i].kf_fd != KF_FD_TYPE_TEXT)
2291 strncpy(pathname, files[i].kf_path, maxlen);
2300 procstat_getpathname(struct procstat *procstat, struct kinfo_proc *kp,
2301 char *pathname, size_t maxlen)
2303 switch(procstat->type) {
2305 /* XXX: Return empty string. */
2309 case PROCSTAT_SYSCTL:
2310 return (procstat_getpathname_sysctl(kp->ki_pid, pathname,
2313 return (procstat_getpathname_core(procstat->core, pathname,
2316 warnx("unknown access method: %d", procstat->type);
2322 procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp, int *osrelp)
2328 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2330 warnx("can't read proc struct at %p for pid %d",
2331 kp->ki_paddr, kp->ki_pid);
2334 *osrelp = proc.p_osrel;
2339 procstat_getosrel_sysctl(pid_t pid, int *osrelp)
2345 name[1] = KERN_PROC;
2346 name[2] = KERN_PROC_OSREL;
2348 len = sizeof(*osrelp);
2349 error = sysctl(name, nitems(name), osrelp, &len, NULL, 0);
2350 if (error != 0 && errno != ESRCH)
2351 warn("sysctl: kern.proc.osrel: %d", pid);
2356 procstat_getosrel_core(struct procstat_core *core, int *osrelp)
2361 buf = procstat_core_get(core, PSC_TYPE_OSREL, NULL, &len);
2364 if (len < sizeof(*osrelp)) {
2374 procstat_getosrel(struct procstat *procstat, struct kinfo_proc *kp, int *osrelp)
2376 switch(procstat->type) {
2378 return (procstat_getosrel_kvm(procstat->kd, kp, osrelp));
2379 case PROCSTAT_SYSCTL:
2380 return (procstat_getosrel_sysctl(kp->ki_pid, osrelp));
2382 return (procstat_getosrel_core(procstat->core, osrelp));
2384 warnx("unknown access method: %d", procstat->type);
2389 #define PROC_AUXV_MAX 256
2391 #if __ELF_WORD_SIZE == 64
2392 static const char *elf32_sv_names[] = {
2398 is_elf32_sysctl(pid_t pid)
2402 static char sv_name[256];
2405 name[1] = KERN_PROC;
2406 name[2] = KERN_PROC_SV_NAME;
2408 len = sizeof(sv_name);
2409 error = sysctl(name, nitems(name), sv_name, &len, NULL, 0);
2410 if (error != 0 || len == 0)
2412 for (i = 0; i < sizeof(elf32_sv_names) / sizeof(*elf32_sv_names); i++) {
2413 if (strncmp(sv_name, elf32_sv_names[i], sizeof(sv_name)) == 0)
2419 static Elf_Auxinfo *
2420 procstat_getauxv32_sysctl(pid_t pid, unsigned int *cntp)
2423 Elf32_Auxinfo *auxv32;
2426 unsigned int i, count;
2430 name[1] = KERN_PROC;
2431 name[2] = KERN_PROC_AUXV;
2433 len = PROC_AUXV_MAX * sizeof(Elf32_Auxinfo);
2435 auxv32 = malloc(len);
2436 if (auxv32 == NULL) {
2437 warn("malloc(%zu)", len);
2440 if (sysctl(name, nitems(name), auxv32, &len, NULL, 0) == -1) {
2441 if (errno != ESRCH && errno != EPERM)
2442 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
2445 count = len / sizeof(Elf_Auxinfo);
2446 auxv = malloc(count * sizeof(Elf_Auxinfo));
2448 warn("malloc(%zu)", count * sizeof(Elf_Auxinfo));
2451 for (i = 0; i < count; i++) {
2453 * XXX: We expect that values for a_type on a 32-bit platform
2454 * are directly mapped to values on 64-bit one, which is not
2457 auxv[i].a_type = auxv32[i].a_type;
2458 ptr = &auxv32[i].a_un;
2459 auxv[i].a_un.a_val = *((uint32_t *)ptr);
2466 #endif /* __ELF_WORD_SIZE == 64 */
2468 static Elf_Auxinfo *
2469 procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp)
2475 #if __ELF_WORD_SIZE == 64
2476 if (is_elf32_sysctl(pid))
2477 return (procstat_getauxv32_sysctl(pid, cntp));
2480 name[1] = KERN_PROC;
2481 name[2] = KERN_PROC_AUXV;
2483 len = PROC_AUXV_MAX * sizeof(Elf_Auxinfo);
2486 warn("malloc(%zu)", len);
2489 if (sysctl(name, nitems(name), auxv, &len, NULL, 0) == -1) {
2490 if (errno != ESRCH && errno != EPERM)
2491 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
2495 *cntp = len / sizeof(Elf_Auxinfo);
2499 static Elf_Auxinfo *
2500 procstat_getauxv_core(struct procstat_core *core, unsigned int *cntp)
2505 auxv = procstat_core_get(core, PSC_TYPE_AUXV, NULL, &len);
2508 *cntp = len / sizeof(Elf_Auxinfo);
2513 procstat_getauxv(struct procstat *procstat, struct kinfo_proc *kp,
2516 switch(procstat->type) {
2518 warnx("kvm method is not supported");
2520 case PROCSTAT_SYSCTL:
2521 return (procstat_getauxv_sysctl(kp->ki_pid, cntp));
2523 return (procstat_getauxv_core(procstat->core, cntp));
2525 warnx("unknown access method: %d", procstat->type);
2531 procstat_freeauxv(struct procstat *procstat __unused, Elf_Auxinfo *auxv)
2537 static struct ptrace_lwpinfo *
2538 procstat_getptlwpinfo_core(struct procstat_core *core, unsigned int *cntp)
2541 struct ptrace_lwpinfo *pl;
2545 cnt = procstat_core_note_count(core, PSC_TYPE_PTLWPINFO);
2549 len = cnt * sizeof(*pl);
2550 buf = calloc(1, len);
2551 pl = procstat_core_get(core, PSC_TYPE_PTLWPINFO, buf, &len);
2556 *cntp = len / sizeof(*pl);
2560 struct ptrace_lwpinfo *
2561 procstat_getptlwpinfo(struct procstat *procstat, unsigned int *cntp)
2563 switch (procstat->type) {
2565 warnx("kvm method is not supported");
2567 case PROCSTAT_SYSCTL:
2568 warnx("sysctl method is not supported");
2571 return (procstat_getptlwpinfo_core(procstat->core, cntp));
2573 warnx("unknown access method: %d", procstat->type);
2579 procstat_freeptlwpinfo(struct procstat *procstat __unused,
2580 struct ptrace_lwpinfo *pl)
2585 static struct kinfo_kstack *
2586 procstat_getkstack_sysctl(pid_t pid, int *cntp)
2588 struct kinfo_kstack *kkstp;
2593 name[1] = KERN_PROC;
2594 name[2] = KERN_PROC_KSTACK;
2598 error = sysctl(name, nitems(name), NULL, &len, NULL, 0);
2599 if (error < 0 && errno != ESRCH && errno != EPERM && errno != ENOENT) {
2600 warn("sysctl: kern.proc.kstack: %d", pid);
2603 if (error == -1 && errno == ENOENT) {
2604 warnx("sysctl: kern.proc.kstack unavailable"
2605 " (options DDB or options STACK required in kernel)");
2610 kkstp = malloc(len);
2611 if (kkstp == NULL) {
2612 warn("malloc(%zu)", len);
2615 if (sysctl(name, nitems(name), kkstp, &len, NULL, 0) == -1) {
2616 warn("sysctl: kern.proc.pid: %d", pid);
2620 *cntp = len / sizeof(*kkstp);
2625 struct kinfo_kstack *
2626 procstat_getkstack(struct procstat *procstat, struct kinfo_proc *kp,
2629 switch(procstat->type) {
2631 warnx("kvm method is not supported");
2633 case PROCSTAT_SYSCTL:
2634 return (procstat_getkstack_sysctl(kp->ki_pid, cntp));
2636 warnx("core method is not supported");
2639 warnx("unknown access method: %d", procstat->type);
2645 procstat_freekstack(struct procstat *procstat __unused,
2646 struct kinfo_kstack *kkstp)