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>
87 #include <netinet/in_pcb.h>
105 #include <libprocstat.h>
106 #include "libprocstat_internal.h"
107 #include "common_kvm.h"
110 int statfs(const char *, struct statfs *); /* XXX */
112 #define PROCSTAT_KVM 1
113 #define PROCSTAT_SYSCTL 2
114 #define PROCSTAT_CORE 3
116 static char **getargv(struct procstat *procstat, struct kinfo_proc *kp,
117 size_t nchr, int env);
118 static char *getmnton(kvm_t *kd, struct mount *m);
119 static struct kinfo_vmentry * kinfo_getvmmap_core(struct procstat_core *core,
121 static Elf_Auxinfo *procstat_getauxv_core(struct procstat_core *core,
123 static Elf_Auxinfo *procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp);
124 static struct filestat_list *procstat_getfiles_kvm(
125 struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
126 static struct filestat_list *procstat_getfiles_sysctl(
127 struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
128 static int procstat_get_pipe_info_sysctl(struct filestat *fst,
129 struct pipestat *pipe, char *errbuf);
130 static int procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
131 struct pipestat *pipe, char *errbuf);
132 static int procstat_get_pts_info_sysctl(struct filestat *fst,
133 struct ptsstat *pts, char *errbuf);
134 static int procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
135 struct ptsstat *pts, char *errbuf);
136 static int procstat_get_sem_info_sysctl(struct filestat *fst,
137 struct semstat *sem, char *errbuf);
138 static int procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
139 struct semstat *sem, char *errbuf);
140 static int procstat_get_shm_info_sysctl(struct filestat *fst,
141 struct shmstat *shm, char *errbuf);
142 static int procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
143 struct shmstat *shm, char *errbuf);
144 static int procstat_get_socket_info_sysctl(struct filestat *fst,
145 struct sockstat *sock, char *errbuf);
146 static int procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
147 struct sockstat *sock, char *errbuf);
148 static int to_filestat_flags(int flags);
149 static int procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
150 struct vnstat *vn, char *errbuf);
151 static int procstat_get_vnode_info_sysctl(struct filestat *fst,
152 struct vnstat *vn, char *errbuf);
153 static gid_t *procstat_getgroups_core(struct procstat_core *core,
154 unsigned int *count);
155 static gid_t * procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp,
156 unsigned int *count);
157 static gid_t *procstat_getgroups_sysctl(pid_t pid, unsigned int *count);
158 static struct kinfo_kstack *procstat_getkstack_sysctl(pid_t pid,
160 static int procstat_getosrel_core(struct procstat_core *core,
162 static int procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp,
164 static int procstat_getosrel_sysctl(pid_t pid, int *osrelp);
165 static int procstat_getpathname_core(struct procstat_core *core,
166 char *pathname, size_t maxlen);
167 static int procstat_getpathname_sysctl(pid_t pid, char *pathname,
169 static int procstat_getrlimit_core(struct procstat_core *core, int which,
170 struct rlimit* rlimit);
171 static int procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp,
172 int which, struct rlimit* rlimit);
173 static int procstat_getrlimit_sysctl(pid_t pid, int which,
174 struct rlimit* rlimit);
175 static int procstat_getumask_core(struct procstat_core *core,
176 unsigned short *maskp);
177 static int procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp,
178 unsigned short *maskp);
179 static int procstat_getumask_sysctl(pid_t pid, unsigned short *maskp);
180 static int vntype2psfsttype(int type);
183 procstat_close(struct procstat *procstat)
187 if (procstat->type == PROCSTAT_KVM)
188 kvm_close(procstat->kd);
189 else if (procstat->type == PROCSTAT_CORE)
190 procstat_core_close(procstat->core);
191 procstat_freeargv(procstat);
192 procstat_freeenvv(procstat);
197 procstat_open_sysctl(void)
199 struct procstat *procstat;
201 procstat = calloc(1, sizeof(*procstat));
202 if (procstat == NULL) {
206 procstat->type = PROCSTAT_SYSCTL;
211 procstat_open_kvm(const char *nlistf, const char *memf)
213 struct procstat *procstat;
215 char buf[_POSIX2_LINE_MAX];
217 procstat = calloc(1, sizeof(*procstat));
218 if (procstat == NULL) {
222 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf);
224 warnx("kvm_openfiles(): %s", buf);
228 procstat->type = PROCSTAT_KVM;
234 procstat_open_core(const char *filename)
236 struct procstat *procstat;
237 struct procstat_core *core;
239 procstat = calloc(1, sizeof(*procstat));
240 if (procstat == NULL) {
244 core = procstat_core_open(filename);
249 procstat->type = PROCSTAT_CORE;
250 procstat->core = core;
255 procstat_getprocs(struct procstat *procstat, int what, int arg,
258 struct kinfo_proc *p0, *p;
267 if (procstat->type == PROCSTAT_KVM) {
269 p0 = kvm_getprocs(procstat->kd, what, arg, &cnt);
270 if (p0 == NULL || cnt <= 0)
273 len = *count * sizeof(*p);
276 warnx("malloc(%zu)", len);
281 } else if (procstat->type == PROCSTAT_SYSCTL) {
287 error = sysctl(name, nitems(name), NULL, &len, NULL, 0);
288 if (error < 0 && errno != EPERM) {
289 warn("sysctl(kern.proc)");
293 warnx("no processes?");
298 p = reallocf(p, len);
300 warnx("reallocf(%zu)", len);
304 error = sysctl(name, nitems(name), p, &len, NULL, 0);
305 } while (error < 0 && errno == ENOMEM && olen == len);
306 if (error < 0 && errno != EPERM) {
307 warn("sysctl(kern.proc)");
310 /* Perform simple consistency checks. */
311 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
312 warnx("kinfo_proc structure size mismatch (len = %zu)", len);
315 *count = len / sizeof(*p);
317 } else if (procstat->type == PROCSTAT_CORE) {
318 p = procstat_core_get(procstat->core, PSC_TYPE_PROC, NULL,
320 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
321 warnx("kinfo_proc structure size mismatch");
324 *count = len / sizeof(*p);
327 warnx("unknown access method: %d", procstat->type);
337 procstat_freeprocs(struct procstat *procstat __unused, struct kinfo_proc *p)
345 struct filestat_list *
346 procstat_getfiles(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
349 switch(procstat->type) {
351 return (procstat_getfiles_kvm(procstat, kp, mmapped));
352 case PROCSTAT_SYSCTL:
354 return (procstat_getfiles_sysctl(procstat, kp, mmapped));
356 warnx("unknown access method: %d", procstat->type);
362 procstat_freefiles(struct procstat *procstat, struct filestat_list *head)
364 struct filestat *fst, *tmp;
366 STAILQ_FOREACH_SAFE(fst, head, next, tmp) {
367 if (fst->fs_path != NULL)
372 if (procstat->vmentries != NULL) {
373 free(procstat->vmentries);
374 procstat->vmentries = NULL;
376 if (procstat->files != NULL) {
377 free(procstat->files);
378 procstat->files = NULL;
382 static struct filestat *
383 filestat_new_entry(void *typedep, int type, int fd, int fflags, int uflags,
384 int refcount, off_t offset, char *path, cap_rights_t *cap_rightsp)
386 struct filestat *entry;
388 entry = calloc(1, sizeof(*entry));
393 entry->fs_typedep = typedep;
394 entry->fs_fflags = fflags;
395 entry->fs_uflags = uflags;
397 entry->fs_type = type;
398 entry->fs_ref_count = refcount;
399 entry->fs_offset = offset;
400 entry->fs_path = path;
401 if (cap_rightsp != NULL)
402 entry->fs_cap_rights = *cap_rightsp;
404 cap_rights_init(&entry->fs_cap_rights);
408 static struct vnode *
409 getctty(kvm_t *kd, struct kinfo_proc *kp)
417 error = kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
420 warnx("can't read proc struct at %p for pid %d",
421 kp->ki_paddr, kp->ki_pid);
424 if (proc.p_pgrp == NULL)
426 error = kvm_read_all(kd, (unsigned long)proc.p_pgrp, &pgrp,
429 warnx("can't read pgrp struct at %p for pid %d",
430 proc.p_pgrp, kp->ki_pid);
433 error = kvm_read_all(kd, (unsigned long)pgrp.pg_session, &sess,
436 warnx("can't read session struct at %p for pid %d",
437 pgrp.pg_session, kp->ki_pid);
440 return (sess.s_ttyvp);
443 static struct filestat_list *
444 procstat_getfiles_kvm(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
447 struct filedesc filed;
448 struct vm_map_entry vmentry;
449 struct vm_object object;
450 struct vmspace vmspace;
451 vm_map_entry_t entryp;
455 struct file **ofiles;
456 struct filestat *entry;
457 struct filestat_list *head;
468 if (kp->ki_fd == NULL)
470 if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &filed,
472 warnx("can't read filedesc at %p", (void *)kp->ki_fd);
477 * Allocate list head.
479 head = malloc(sizeof(*head));
484 /* root directory vnode, if one. */
486 entry = filestat_new_entry(filed.fd_rdir, PS_FST_TYPE_VNODE, -1,
487 PS_FST_FFLAG_READ, PS_FST_UFLAG_RDIR, 0, 0, NULL, NULL);
489 STAILQ_INSERT_TAIL(head, entry, next);
491 /* current working directory vnode. */
493 entry = filestat_new_entry(filed.fd_cdir, PS_FST_TYPE_VNODE, -1,
494 PS_FST_FFLAG_READ, PS_FST_UFLAG_CDIR, 0, 0, NULL, NULL);
496 STAILQ_INSERT_TAIL(head, entry, next);
498 /* jail root, if any. */
500 entry = filestat_new_entry(filed.fd_jdir, PS_FST_TYPE_VNODE, -1,
501 PS_FST_FFLAG_READ, PS_FST_UFLAG_JAIL, 0, 0, NULL, NULL);
503 STAILQ_INSERT_TAIL(head, entry, next);
505 /* ktrace vnode, if one */
507 entry = filestat_new_entry(kp->ki_tracep, PS_FST_TYPE_VNODE, -1,
508 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
509 PS_FST_UFLAG_TRACE, 0, 0, NULL, NULL);
511 STAILQ_INSERT_TAIL(head, entry, next);
513 /* text vnode, if one */
515 entry = filestat_new_entry(kp->ki_textvp, PS_FST_TYPE_VNODE, -1,
516 PS_FST_FFLAG_READ, PS_FST_UFLAG_TEXT, 0, 0, NULL, NULL);
518 STAILQ_INSERT_TAIL(head, entry, next);
520 /* Controlling terminal. */
521 if ((vp = getctty(kd, kp)) != NULL) {
522 entry = filestat_new_entry(vp, PS_FST_TYPE_VNODE, -1,
523 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
524 PS_FST_UFLAG_CTTY, 0, 0, NULL, NULL);
526 STAILQ_INSERT_TAIL(head, entry, next);
529 nfiles = filed.fd_lastfile + 1;
530 ofiles = malloc(nfiles * sizeof(struct file *));
531 if (ofiles == NULL) {
532 warn("malloc(%zu)", nfiles * sizeof(struct file *));
535 if (!kvm_read_all(kd, (unsigned long)filed.fd_ofiles, ofiles,
536 nfiles * sizeof(struct file *))) {
537 warnx("cannot read file structures at %p",
538 (void *)filed.fd_ofiles);
542 for (i = 0; i <= filed.fd_lastfile; i++) {
543 if (ofiles[i] == NULL)
545 if (!kvm_read_all(kd, (unsigned long)ofiles[i], &file,
546 sizeof(struct file))) {
547 warnx("can't read file %d at %p", i,
551 switch (file.f_type) {
553 type = PS_FST_TYPE_VNODE;
557 type = PS_FST_TYPE_SOCKET;
561 type = PS_FST_TYPE_PIPE;
565 type = PS_FST_TYPE_FIFO;
570 type = PS_FST_TYPE_PTS;
575 type = PS_FST_TYPE_SEM;
579 type = PS_FST_TYPE_SHM;
583 type = PS_FST_TYPE_PROCDESC;
589 /* XXXRW: No capability rights support for kvm yet. */
590 entry = filestat_new_entry(data, type, i,
591 to_filestat_flags(file.f_flag), 0, 0, 0, NULL, NULL);
593 STAILQ_INSERT_TAIL(head, entry, next);
600 * Process mmapped files if requested.
603 if (!kvm_read_all(kd, (unsigned long)kp->ki_vmspace, &vmspace,
605 warnx("can't read vmspace at %p",
606 (void *)kp->ki_vmspace);
609 map = &vmspace.vm_map;
611 for (entryp = map->header.next;
612 entryp != &kp->ki_vmspace->vm_map.header;
613 entryp = vmentry.next) {
614 if (!kvm_read_all(kd, (unsigned long)entryp, &vmentry,
616 warnx("can't read vm_map_entry at %p",
620 if (vmentry.eflags & MAP_ENTRY_IS_SUB_MAP)
622 if ((objp = vmentry.object.vm_object) == NULL)
624 for (; objp; objp = object.backing_object) {
625 if (!kvm_read_all(kd, (unsigned long)objp,
626 &object, sizeof(object))) {
627 warnx("can't read vm_object at %p",
633 /* We want only vnode objects. */
634 if (object.type != OBJT_VNODE)
637 prot = vmentry.protection;
639 if (prot & VM_PROT_READ)
640 fflags = PS_FST_FFLAG_READ;
641 if ((vmentry.eflags & MAP_ENTRY_COW) == 0 &&
642 prot & VM_PROT_WRITE)
643 fflags |= PS_FST_FFLAG_WRITE;
646 * Create filestat entry.
648 entry = filestat_new_entry(object.handle,
649 PS_FST_TYPE_VNODE, -1, fflags,
650 PS_FST_UFLAG_MMAP, 0, 0, NULL, NULL);
652 STAILQ_INSERT_TAIL(head, entry, next);
660 * kinfo types to filestat translation.
663 kinfo_type2fst(int kftype)
669 { KF_TYPE_PROCDESC, PS_FST_TYPE_PROCDESC },
670 { KF_TYPE_CRYPTO, PS_FST_TYPE_CRYPTO },
671 { KF_TYPE_FIFO, PS_FST_TYPE_FIFO },
672 { KF_TYPE_KQUEUE, PS_FST_TYPE_KQUEUE },
673 { KF_TYPE_MQUEUE, PS_FST_TYPE_MQUEUE },
674 { KF_TYPE_NONE, PS_FST_TYPE_NONE },
675 { KF_TYPE_PIPE, PS_FST_TYPE_PIPE },
676 { KF_TYPE_PTS, PS_FST_TYPE_PTS },
677 { KF_TYPE_SEM, PS_FST_TYPE_SEM },
678 { KF_TYPE_SHM, PS_FST_TYPE_SHM },
679 { KF_TYPE_SOCKET, PS_FST_TYPE_SOCKET },
680 { KF_TYPE_VNODE, PS_FST_TYPE_VNODE },
681 { KF_TYPE_UNKNOWN, PS_FST_TYPE_UNKNOWN }
683 #define NKFTYPES (sizeof(kftypes2fst) / sizeof(*kftypes2fst))
686 for (i = 0; i < NKFTYPES; i++)
687 if (kftypes2fst[i].kf_type == kftype)
690 return (PS_FST_TYPE_UNKNOWN);
691 return (kftypes2fst[i].fst_type);
695 * kinfo flags to filestat translation.
698 kinfo_fflags2fst(int kfflags)
704 { KF_FLAG_APPEND, PS_FST_FFLAG_APPEND },
705 { KF_FLAG_ASYNC, PS_FST_FFLAG_ASYNC },
706 { KF_FLAG_CREAT, PS_FST_FFLAG_CREAT },
707 { KF_FLAG_DIRECT, PS_FST_FFLAG_DIRECT },
708 { KF_FLAG_EXCL, PS_FST_FFLAG_EXCL },
709 { KF_FLAG_EXEC, PS_FST_FFLAG_EXEC },
710 { KF_FLAG_EXLOCK, PS_FST_FFLAG_EXLOCK },
711 { KF_FLAG_FSYNC, PS_FST_FFLAG_SYNC },
712 { KF_FLAG_HASLOCK, PS_FST_FFLAG_HASLOCK },
713 { KF_FLAG_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
714 { KF_FLAG_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
715 { KF_FLAG_READ, PS_FST_FFLAG_READ },
716 { KF_FLAG_SHLOCK, PS_FST_FFLAG_SHLOCK },
717 { KF_FLAG_TRUNC, PS_FST_FFLAG_TRUNC },
718 { KF_FLAG_WRITE, PS_FST_FFLAG_WRITE }
720 #define NKFFLAGS (sizeof(kfflags2fst) / sizeof(*kfflags2fst))
725 for (i = 0; i < NKFFLAGS; i++)
726 if ((kfflags & kfflags2fst[i].kf_flag) != 0)
727 flags |= kfflags2fst[i].fst_flag;
732 kinfo_uflags2fst(int fd)
736 case KF_FD_TYPE_CTTY:
737 return (PS_FST_UFLAG_CTTY);
739 return (PS_FST_UFLAG_CDIR);
740 case KF_FD_TYPE_JAIL:
741 return (PS_FST_UFLAG_JAIL);
742 case KF_FD_TYPE_TEXT:
743 return (PS_FST_UFLAG_TEXT);
744 case KF_FD_TYPE_TRACE:
745 return (PS_FST_UFLAG_TRACE);
746 case KF_FD_TYPE_ROOT:
747 return (PS_FST_UFLAG_RDIR);
752 static struct kinfo_file *
753 kinfo_getfile_core(struct procstat_core *core, int *cntp)
758 struct kinfo_file *kif, *kp, *kf;
760 buf = procstat_core_get(core, PSC_TYPE_FILES, NULL, &len);
764 * XXXMG: The code below is just copy&past from libutil.
765 * The code duplication can be avoided if libutil
766 * is extended to provide something like:
767 * struct kinfo_file *kinfo_getfile_from_buf(const char *buf,
768 * size_t len, int *cntp);
771 /* Pass 1: count items */
776 kf = (struct kinfo_file *)(uintptr_t)bp;
777 if (kf->kf_structsize == 0)
779 bp += kf->kf_structsize;
783 kif = calloc(cnt, sizeof(*kif));
793 kf = (struct kinfo_file *)(uintptr_t)bp;
794 if (kf->kf_structsize == 0)
796 /* Copy/expand into pre-zeroed buffer */
797 memcpy(kp, kf, kf->kf_structsize);
798 /* Advance to next packed record */
799 bp += kf->kf_structsize;
800 /* Set field size to fixed length, advance */
801 kp->kf_structsize = sizeof(*kp);
806 return (kif); /* Caller must free() return value */
809 static struct filestat_list *
810 procstat_getfiles_sysctl(struct procstat *procstat, struct kinfo_proc *kp,
813 struct kinfo_file *kif, *files;
814 struct kinfo_vmentry *kve, *vmentries;
815 struct filestat_list *head;
816 struct filestat *entry;
822 cap_rights_t cap_rights;
825 if (kp->ki_fd == NULL)
827 switch(procstat->type) {
828 case PROCSTAT_SYSCTL:
829 files = kinfo_getfile(kp->ki_pid, &cnt);
832 files = kinfo_getfile_core(procstat->core, &cnt);
835 assert(!"invalid type");
837 if (files == NULL && errno != EPERM) {
838 warn("kinfo_getfile()");
841 procstat->files = files;
844 * Allocate list head.
846 head = malloc(sizeof(*head));
850 for (i = 0; i < cnt; i++) {
853 type = kinfo_type2fst(kif->kf_type);
854 fd = kif->kf_fd >= 0 ? kif->kf_fd : -1;
855 fflags = kinfo_fflags2fst(kif->kf_flags);
856 uflags = kinfo_uflags2fst(kif->kf_fd);
857 refcount = kif->kf_ref_count;
858 offset = kif->kf_offset;
859 if (*kif->kf_path != '\0')
860 path = strdup(kif->kf_path);
863 cap_rights = kif->kf_cap_rights;
866 * Create filestat entry.
868 entry = filestat_new_entry(kif, type, fd, fflags, uflags,
869 refcount, offset, path, &cap_rights);
871 STAILQ_INSERT_TAIL(head, entry, next);
874 vmentries = procstat_getvmmap(procstat, kp, &cnt);
875 procstat->vmentries = vmentries;
876 if (vmentries == NULL || cnt == 0)
878 for (i = 0; i < cnt; i++) {
880 if (kve->kve_type != KVME_TYPE_VNODE)
883 if (kve->kve_protection & KVME_PROT_READ)
884 fflags = PS_FST_FFLAG_READ;
885 if ((kve->kve_flags & KVME_FLAG_COW) == 0 &&
886 kve->kve_protection & KVME_PROT_WRITE)
887 fflags |= PS_FST_FFLAG_WRITE;
888 offset = kve->kve_offset;
889 refcount = kve->kve_ref_count;
890 if (*kve->kve_path != '\0')
891 path = strdup(kve->kve_path);
894 entry = filestat_new_entry(kve, PS_FST_TYPE_VNODE, -1,
895 fflags, PS_FST_UFLAG_MMAP, refcount, offset, path,
898 STAILQ_INSERT_TAIL(head, entry, next);
906 procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst,
907 struct pipestat *ps, char *errbuf)
911 if (procstat->type == PROCSTAT_KVM) {
912 return (procstat_get_pipe_info_kvm(procstat->kd, fst, ps,
914 } else if (procstat->type == PROCSTAT_SYSCTL ||
915 procstat->type == PROCSTAT_CORE) {
916 return (procstat_get_pipe_info_sysctl(fst, ps, errbuf));
918 warnx("unknown access method: %d", procstat->type);
920 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
926 procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
927 struct pipestat *ps, char *errbuf)
935 bzero(ps, sizeof(*ps));
936 pipep = fst->fs_typedep;
939 if (!kvm_read_all(kd, (unsigned long)pipep, &pi, sizeof(struct pipe))) {
940 warnx("can't read pipe at %p", (void *)pipep);
943 ps->addr = (uintptr_t)pipep;
944 ps->peer = (uintptr_t)pi.pipe_peer;
945 ps->buffer_cnt = pi.pipe_buffer.cnt;
950 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
955 procstat_get_pipe_info_sysctl(struct filestat *fst, struct pipestat *ps,
956 char *errbuf __unused)
958 struct kinfo_file *kif;
962 bzero(ps, sizeof(*ps));
963 kif = fst->fs_typedep;
966 ps->addr = kif->kf_un.kf_pipe.kf_pipe_addr;
967 ps->peer = kif->kf_un.kf_pipe.kf_pipe_peer;
968 ps->buffer_cnt = kif->kf_un.kf_pipe.kf_pipe_buffer_cnt;
973 procstat_get_pts_info(struct procstat *procstat, struct filestat *fst,
974 struct ptsstat *pts, char *errbuf)
978 if (procstat->type == PROCSTAT_KVM) {
979 return (procstat_get_pts_info_kvm(procstat->kd, fst, pts,
981 } else if (procstat->type == PROCSTAT_SYSCTL ||
982 procstat->type == PROCSTAT_CORE) {
983 return (procstat_get_pts_info_sysctl(fst, pts, errbuf));
985 warnx("unknown access method: %d", procstat->type);
987 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
993 procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
994 struct ptsstat *pts, char *errbuf)
1002 bzero(pts, sizeof(*pts));
1003 ttyp = fst->fs_typedep;
1006 if (!kvm_read_all(kd, (unsigned long)ttyp, &tty, sizeof(struct tty))) {
1007 warnx("can't read tty at %p", (void *)ttyp);
1010 pts->dev = dev2udev(kd, tty.t_dev);
1011 (void)kdevtoname(kd, tty.t_dev, pts->devname);
1016 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1021 procstat_get_pts_info_sysctl(struct filestat *fst, struct ptsstat *pts,
1022 char *errbuf __unused)
1024 struct kinfo_file *kif;
1028 bzero(pts, sizeof(*pts));
1029 kif = fst->fs_typedep;
1032 pts->dev = kif->kf_un.kf_pts.kf_pts_dev;
1033 strlcpy(pts->devname, kif->kf_path, sizeof(pts->devname));
1038 procstat_get_sem_info(struct procstat *procstat, struct filestat *fst,
1039 struct semstat *sem, char *errbuf)
1043 if (procstat->type == PROCSTAT_KVM) {
1044 return (procstat_get_sem_info_kvm(procstat->kd, fst, sem,
1046 } else if (procstat->type == PROCSTAT_SYSCTL ||
1047 procstat->type == PROCSTAT_CORE) {
1048 return (procstat_get_sem_info_sysctl(fst, sem, errbuf));
1050 warnx("unknown access method: %d", procstat->type);
1052 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1058 procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
1059 struct semstat *sem, char *errbuf)
1069 bzero(sem, sizeof(*sem));
1070 ksemp = fst->fs_typedep;
1073 if (!kvm_read_all(kd, (unsigned long)ksemp, &ksem,
1074 sizeof(struct ksem))) {
1075 warnx("can't read ksem at %p", (void *)ksemp);
1078 sem->mode = S_IFREG | ksem.ks_mode;
1079 sem->value = ksem.ks_value;
1080 if (fst->fs_path == NULL && ksem.ks_path != NULL) {
1081 path = malloc(MAXPATHLEN);
1082 for (i = 0; i < MAXPATHLEN - 1; i++) {
1083 if (!kvm_read_all(kd, (unsigned long)ksem.ks_path + i,
1086 if (path[i] == '\0')
1093 fst->fs_path = path;
1099 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1104 procstat_get_sem_info_sysctl(struct filestat *fst, struct semstat *sem,
1105 char *errbuf __unused)
1107 struct kinfo_file *kif;
1111 bzero(sem, sizeof(*sem));
1112 kif = fst->fs_typedep;
1115 sem->value = kif->kf_un.kf_sem.kf_sem_value;
1116 sem->mode = kif->kf_un.kf_sem.kf_sem_mode;
1121 procstat_get_shm_info(struct procstat *procstat, struct filestat *fst,
1122 struct shmstat *shm, char *errbuf)
1126 if (procstat->type == PROCSTAT_KVM) {
1127 return (procstat_get_shm_info_kvm(procstat->kd, fst, shm,
1129 } else if (procstat->type == PROCSTAT_SYSCTL ||
1130 procstat->type == PROCSTAT_CORE) {
1131 return (procstat_get_shm_info_sysctl(fst, shm, errbuf));
1133 warnx("unknown access method: %d", procstat->type);
1135 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1141 procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
1142 struct shmstat *shm, char *errbuf)
1152 bzero(shm, sizeof(*shm));
1153 shmfdp = fst->fs_typedep;
1156 if (!kvm_read_all(kd, (unsigned long)shmfdp, &shmfd,
1157 sizeof(struct shmfd))) {
1158 warnx("can't read shmfd at %p", (void *)shmfdp);
1161 shm->mode = S_IFREG | shmfd.shm_mode;
1162 shm->size = shmfd.shm_size;
1163 if (fst->fs_path == NULL && shmfd.shm_path != NULL) {
1164 path = malloc(MAXPATHLEN);
1165 for (i = 0; i < MAXPATHLEN - 1; i++) {
1166 if (!kvm_read_all(kd, (unsigned long)shmfd.shm_path + i,
1169 if (path[i] == '\0')
1176 fst->fs_path = path;
1182 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1187 procstat_get_shm_info_sysctl(struct filestat *fst, struct shmstat *shm,
1188 char *errbuf __unused)
1190 struct kinfo_file *kif;
1194 bzero(shm, sizeof(*shm));
1195 kif = fst->fs_typedep;
1198 shm->size = kif->kf_un.kf_file.kf_file_size;
1199 shm->mode = kif->kf_un.kf_file.kf_file_mode;
1204 procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst,
1205 struct vnstat *vn, char *errbuf)
1209 if (procstat->type == PROCSTAT_KVM) {
1210 return (procstat_get_vnode_info_kvm(procstat->kd, fst, vn,
1212 } else if (procstat->type == PROCSTAT_SYSCTL ||
1213 procstat->type == PROCSTAT_CORE) {
1214 return (procstat_get_vnode_info_sysctl(fst, vn, errbuf));
1216 warnx("unknown access method: %d", procstat->type);
1218 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1224 procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
1225 struct vnstat *vn, char *errbuf)
1227 /* Filesystem specific handlers. */
1228 #define FSTYPE(fst) {#fst, fst##_filestat}
1231 int (*handler)(kvm_t *kd, struct vnode *vp,
1241 #ifdef LIBPROCSTAT_ZFS
1245 #define NTYPES (sizeof(fstypes) / sizeof(*fstypes))
1255 vp = fst->fs_typedep;
1258 error = kvm_read_all(kd, (unsigned long)vp, &vnode, sizeof(vnode));
1260 warnx("can't read vnode at %p", (void *)vp);
1263 bzero(vn, sizeof(*vn));
1264 vn->vn_type = vntype2psfsttype(vnode.v_type);
1265 if (vnode.v_type == VNON || vnode.v_type == VBAD)
1267 error = kvm_read_all(kd, (unsigned long)vnode.v_tag, tagstr,
1270 warnx("can't read v_tag at %p", (void *)vp);
1273 tagstr[sizeof(tagstr) - 1] = '\0';
1276 * Find appropriate handler.
1278 for (i = 0; i < NTYPES; i++)
1279 if (!strcmp(fstypes[i].tag, tagstr)) {
1280 if (fstypes[i].handler(kd, &vnode, vn) != 0) {
1287 snprintf(errbuf, _POSIX2_LINE_MAX, "?(%s)", tagstr);
1290 vn->vn_mntdir = getmnton(kd, vnode.v_mount);
1291 if ((vnode.v_type == VBLK || vnode.v_type == VCHR) &&
1292 vnode.v_rdev != NULL){
1293 vn->vn_dev = dev2udev(kd, vnode.v_rdev);
1294 (void)kdevtoname(kd, vnode.v_rdev, vn->vn_devname);
1302 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1307 * kinfo vnode type to filestat translation.
1310 kinfo_vtype2fst(int kfvtype)
1315 } kfvtypes2fst[] = {
1316 { KF_VTYPE_VBAD, PS_FST_VTYPE_VBAD },
1317 { KF_VTYPE_VBLK, PS_FST_VTYPE_VBLK },
1318 { KF_VTYPE_VCHR, PS_FST_VTYPE_VCHR },
1319 { KF_VTYPE_VDIR, PS_FST_VTYPE_VDIR },
1320 { KF_VTYPE_VFIFO, PS_FST_VTYPE_VFIFO },
1321 { KF_VTYPE_VLNK, PS_FST_VTYPE_VLNK },
1322 { KF_VTYPE_VNON, PS_FST_VTYPE_VNON },
1323 { KF_VTYPE_VREG, PS_FST_VTYPE_VREG },
1324 { KF_VTYPE_VSOCK, PS_FST_VTYPE_VSOCK }
1326 #define NKFVTYPES (sizeof(kfvtypes2fst) / sizeof(*kfvtypes2fst))
1329 for (i = 0; i < NKFVTYPES; i++)
1330 if (kfvtypes2fst[i].kf_vtype == kfvtype)
1333 return (PS_FST_VTYPE_UNKNOWN);
1334 return (kfvtypes2fst[i].fst_vtype);
1338 procstat_get_vnode_info_sysctl(struct filestat *fst, struct vnstat *vn,
1341 struct statfs stbuf;
1342 struct kinfo_file *kif;
1343 struct kinfo_vmentry *kve;
1355 bzero(vn, sizeof(*vn));
1356 if (fst->fs_typedep == NULL)
1358 if (fst->fs_uflags & PS_FST_UFLAG_MMAP) {
1359 kve = fst->fs_typedep;
1360 fileid = kve->kve_vn_fileid;
1361 fsid = kve->kve_vn_fsid;
1362 mode = kve->kve_vn_mode;
1363 path = kve->kve_path;
1364 rdev = kve->kve_vn_rdev;
1365 size = kve->kve_vn_size;
1366 vntype = kinfo_vtype2fst(kve->kve_vn_type);
1367 status = kve->kve_status;
1369 kif = fst->fs_typedep;
1370 fileid = kif->kf_un.kf_file.kf_file_fileid;
1371 fsid = kif->kf_un.kf_file.kf_file_fsid;
1372 mode = kif->kf_un.kf_file.kf_file_mode;
1373 path = kif->kf_path;
1374 rdev = kif->kf_un.kf_file.kf_file_rdev;
1375 size = kif->kf_un.kf_file.kf_file_size;
1376 vntype = kinfo_vtype2fst(kif->kf_vnode_type);
1377 status = kif->kf_status;
1379 vn->vn_type = vntype;
1380 if (vntype == PS_FST_VTYPE_VNON || vntype == PS_FST_VTYPE_VBAD)
1382 if ((status & KF_ATTR_VALID) == 0) {
1383 if (errbuf != NULL) {
1384 snprintf(errbuf, _POSIX2_LINE_MAX,
1385 "? (no info available)");
1389 if (path && *path) {
1390 statfs(path, &stbuf);
1391 vn->vn_mntdir = strdup(stbuf.f_mntonname);
1393 vn->vn_mntdir = strdup("-");
1395 if (vntype == PS_FST_VTYPE_VBLK) {
1396 name = devname(rdev, S_IFBLK);
1398 strlcpy(vn->vn_devname, name,
1399 sizeof(vn->vn_devname));
1400 } else if (vntype == PS_FST_VTYPE_VCHR) {
1401 name = devname(vn->vn_dev, S_IFCHR);
1403 strlcpy(vn->vn_devname, name,
1404 sizeof(vn->vn_devname));
1407 vn->vn_fileid = fileid;
1414 procstat_get_socket_info(struct procstat *procstat, struct filestat *fst,
1415 struct sockstat *sock, char *errbuf)
1419 if (procstat->type == PROCSTAT_KVM) {
1420 return (procstat_get_socket_info_kvm(procstat->kd, fst, sock,
1422 } else if (procstat->type == PROCSTAT_SYSCTL ||
1423 procstat->type == PROCSTAT_CORE) {
1424 return (procstat_get_socket_info_sysctl(fst, sock, errbuf));
1426 warnx("unknown access method: %d", procstat->type);
1428 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1434 procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
1435 struct sockstat *sock, char *errbuf)
1439 struct protosw proto;
1448 bzero(sock, sizeof(*sock));
1449 so = fst->fs_typedep;
1452 sock->so_addr = (uintptr_t)so;
1453 /* fill in socket */
1454 if (!kvm_read_all(kd, (unsigned long)so, &s,
1455 sizeof(struct socket))) {
1456 warnx("can't read sock at %p", (void *)so);
1459 /* fill in protosw entry */
1460 if (!kvm_read_all(kd, (unsigned long)s.so_proto, &proto,
1461 sizeof(struct protosw))) {
1462 warnx("can't read protosw at %p", (void *)s.so_proto);
1465 /* fill in domain */
1466 if (!kvm_read_all(kd, (unsigned long)proto.pr_domain, &dom,
1467 sizeof(struct domain))) {
1468 warnx("can't read domain at %p",
1469 (void *)proto.pr_domain);
1472 if ((len = kvm_read(kd, (unsigned long)dom.dom_name, sock->dname,
1473 sizeof(sock->dname) - 1)) < 0) {
1474 warnx("can't read domain name at %p", (void *)dom.dom_name);
1475 sock->dname[0] = '\0';
1478 sock->dname[len] = '\0';
1481 * Fill in known data.
1483 sock->type = s.so_type;
1484 sock->proto = proto.pr_protocol;
1485 sock->dom_family = dom.dom_family;
1486 sock->so_pcb = (uintptr_t)s.so_pcb;
1489 * Protocol specific data.
1491 switch(dom.dom_family) {
1494 if (proto.pr_protocol == IPPROTO_TCP) {
1496 if (kvm_read(kd, (u_long)s.so_pcb,
1497 (char *)&inpcb, sizeof(struct inpcb))
1498 != sizeof(struct inpcb)) {
1499 warnx("can't read inpcb at %p",
1503 (uintptr_t)inpcb.inp_ppcb;
1509 if (kvm_read(kd, (u_long)s.so_pcb, (char *)&unpcb,
1510 sizeof(struct unpcb)) != sizeof(struct unpcb)){
1511 warnx("can't read unpcb at %p",
1513 } else if (unpcb.unp_conn) {
1514 sock->so_rcv_sb_state = s.so_rcv.sb_state;
1515 sock->so_snd_sb_state = s.so_snd.sb_state;
1516 sock->unp_conn = (uintptr_t)unpcb.unp_conn;
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_sa_local, &sock->sa_local, kif->kf_sa_local.ss_len);
1553 bcopy(&kif->kf_sa_peer, &sock->sa_peer, kif->kf_sa_peer.ss_len);
1556 * Protocol specific data.
1558 switch(sock->dom_family) {
1561 if (sock->proto == IPPROTO_TCP)
1562 sock->inp_ppcb = kif->kf_un.kf_sock.kf_sock_inpcb;
1565 if (kif->kf_un.kf_sock.kf_sock_unpconn != 0) {
1566 sock->so_rcv_sb_state =
1567 kif->kf_un.kf_sock.kf_sock_rcv_sb_state;
1568 sock->so_snd_sb_state =
1569 kif->kf_un.kf_sock.kf_sock_snd_sb_state;
1571 kif->kf_un.kf_sock.kf_sock_unpconn;
1581 * Descriptor flags to filestat translation.
1584 to_filestat_flags(int flags)
1590 { FREAD, PS_FST_FFLAG_READ },
1591 { FWRITE, PS_FST_FFLAG_WRITE },
1592 { O_APPEND, PS_FST_FFLAG_APPEND },
1593 { O_ASYNC, PS_FST_FFLAG_ASYNC },
1594 { O_CREAT, PS_FST_FFLAG_CREAT },
1595 { O_DIRECT, PS_FST_FFLAG_DIRECT },
1596 { O_EXCL, PS_FST_FFLAG_EXCL },
1597 { O_EXEC, PS_FST_FFLAG_EXEC },
1598 { O_EXLOCK, PS_FST_FFLAG_EXLOCK },
1599 { O_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
1600 { O_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
1601 { O_SHLOCK, PS_FST_FFLAG_SHLOCK },
1602 { O_SYNC, PS_FST_FFLAG_SYNC },
1603 { O_TRUNC, PS_FST_FFLAG_TRUNC }
1605 #define NFSTFLAGS (sizeof(fstflags) / sizeof(*fstflags))
1610 for (i = 0; i < NFSTFLAGS; i++)
1611 if (flags & fstflags[i].flag)
1612 fst_flags |= fstflags[i].fst_flag;
1617 * Vnode type to filestate translation.
1620 vntype2psfsttype(int type)
1626 { VBAD, PS_FST_VTYPE_VBAD },
1627 { VBLK, PS_FST_VTYPE_VBLK },
1628 { VCHR, PS_FST_VTYPE_VCHR },
1629 { VDIR, PS_FST_VTYPE_VDIR },
1630 { VFIFO, PS_FST_VTYPE_VFIFO },
1631 { VLNK, PS_FST_VTYPE_VLNK },
1632 { VNON, PS_FST_VTYPE_VNON },
1633 { VREG, PS_FST_VTYPE_VREG },
1634 { VSOCK, PS_FST_VTYPE_VSOCK }
1636 #define NVFTYPES (sizeof(vt2fst) / sizeof(*vt2fst))
1637 unsigned int i, fst_type;
1639 fst_type = PS_FST_VTYPE_UNKNOWN;
1640 for (i = 0; i < NVFTYPES; i++) {
1641 if (type == vt2fst[i].vtype) {
1642 fst_type = vt2fst[i].fst_vtype;
1650 getmnton(kvm_t *kd, struct mount *m)
1653 static struct mtab {
1656 char mntonname[MNAMELEN + 1];
1660 for (mt = mhead; mt != NULL; mt = mt->next)
1662 return (mt->mntonname);
1663 if (!kvm_read_all(kd, (unsigned long)m, &mnt, sizeof(struct mount))) {
1664 warnx("can't read mount table at %p", (void *)m);
1667 if ((mt = malloc(sizeof (struct mtab))) == NULL)
1670 bcopy(&mnt.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
1671 mt->mntonname[MNAMELEN] = '\0';
1674 return (mt->mntonname);
1678 * Auxiliary structures and functions to get process environment or
1679 * command line arguments.
1688 static struct argvec *
1689 argvec_alloc(size_t bufsize)
1693 av = malloc(sizeof(*av));
1696 av->bufsize = bufsize;
1697 av->buf = malloc(av->bufsize);
1698 if (av->buf == NULL) {
1703 av->argv = malloc(sizeof(char *) * av->argc);
1704 if (av->argv == NULL) {
1713 argvec_free(struct argvec * av)
1722 getargv(struct procstat *procstat, struct kinfo_proc *kp, size_t nchr, int env)
1724 int error, name[4], argc, i;
1725 struct argvec *av, **avp;
1732 if (procstat->type == PROCSTAT_KVM) {
1733 warnx("can't use kvm access method");
1736 if (procstat->type != PROCSTAT_SYSCTL &&
1737 procstat->type != PROCSTAT_CORE) {
1738 warnx("unknown access method: %d", procstat->type);
1742 if (nchr == 0 || nchr > ARG_MAX)
1745 avp = (struct argvec **)(env ? &procstat->argv : &procstat->envv);
1750 av = argvec_alloc(nchr);
1753 warn("malloc(%zu)", nchr);
1757 } else if (av->bufsize < nchr) {
1758 av->buf = reallocf(av->buf, nchr);
1759 if (av->buf == NULL) {
1760 warn("malloc(%zu)", nchr);
1764 if (procstat->type == PROCSTAT_SYSCTL) {
1766 name[1] = KERN_PROC;
1767 name[2] = env ? KERN_PROC_ENV : KERN_PROC_ARGS;
1768 name[3] = kp->ki_pid;
1770 error = sysctl(name, nitems(name), av->buf, &len, NULL, 0);
1771 if (error != 0 && errno != ESRCH && errno != EPERM)
1772 warn("sysctl(kern.proc.%s)", env ? "env" : "args");
1773 if (error != 0 || len == 0)
1775 } else /* procstat->type == PROCSTAT_CORE */ {
1776 type = env ? PSC_TYPE_ENVV : PSC_TYPE_ARGV;
1778 if (procstat_core_get(procstat->core, type, av->buf, &len)
1787 for (p = av->buf; p < av->buf + len; p += strlen(p) + 1) {
1793 argv = realloc(argv, sizeof(char *) * argc);
1795 warn("malloc(%zu)", sizeof(char *) * argc);
1807 * Return process command line arguments.
1810 procstat_getargv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
1813 return (getargv(procstat, p, nchr, 0));
1817 * Free the buffer allocated by procstat_getargv().
1820 procstat_freeargv(struct procstat *procstat)
1823 if (procstat->argv != NULL) {
1824 argvec_free(procstat->argv);
1825 procstat->argv = NULL;
1830 * Return process environment.
1833 procstat_getenvv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
1836 return (getargv(procstat, p, nchr, 1));
1840 * Free the buffer allocated by procstat_getenvv().
1843 procstat_freeenvv(struct procstat *procstat)
1845 if (procstat->envv != NULL) {
1846 argvec_free(procstat->envv);
1847 procstat->envv = NULL;
1851 static struct kinfo_vmentry *
1852 kinfo_getvmmap_core(struct procstat_core *core, int *cntp)
1856 char *buf, *bp, *eb;
1857 struct kinfo_vmentry *kiv, *kp, *kv;
1859 buf = procstat_core_get(core, PSC_TYPE_VMMAP, NULL, &len);
1864 * XXXMG: The code below is just copy&past from libutil.
1865 * The code duplication can be avoided if libutil
1866 * is extended to provide something like:
1867 * struct kinfo_vmentry *kinfo_getvmmap_from_buf(const char *buf,
1868 * size_t len, int *cntp);
1871 /* Pass 1: count items */
1876 kv = (struct kinfo_vmentry *)(uintptr_t)bp;
1877 if (kv->kve_structsize == 0)
1879 bp += kv->kve_structsize;
1883 kiv = calloc(cnt, sizeof(*kiv));
1891 /* Pass 2: unpack */
1893 kv = (struct kinfo_vmentry *)(uintptr_t)bp;
1894 if (kv->kve_structsize == 0)
1896 /* Copy/expand into pre-zeroed buffer */
1897 memcpy(kp, kv, kv->kve_structsize);
1898 /* Advance to next packed record */
1899 bp += kv->kve_structsize;
1900 /* Set field size to fixed length, advance */
1901 kp->kve_structsize = sizeof(*kp);
1906 return (kiv); /* Caller must free() return value */
1909 struct kinfo_vmentry *
1910 procstat_getvmmap(struct procstat *procstat, struct kinfo_proc *kp,
1914 switch(procstat->type) {
1916 warnx("kvm method is not supported");
1918 case PROCSTAT_SYSCTL:
1919 return (kinfo_getvmmap(kp->ki_pid, cntp));
1921 return (kinfo_getvmmap_core(procstat->core, cntp));
1923 warnx("unknown access method: %d", procstat->type);
1929 procstat_freevmmap(struct procstat *procstat __unused,
1930 struct kinfo_vmentry *vmmap)
1937 procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned int *cntp)
1946 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
1948 warnx("can't read proc struct at %p for pid %d",
1949 kp->ki_paddr, kp->ki_pid);
1952 if (proc.p_ucred == NOCRED)
1954 if (!kvm_read_all(kd, (unsigned long)proc.p_ucred, &ucred,
1956 warnx("can't read ucred struct at %p for pid %d",
1957 proc.p_ucred, kp->ki_pid);
1960 len = ucred.cr_ngroups * sizeof(gid_t);
1961 groups = malloc(len);
1962 if (groups == NULL) {
1963 warn("malloc(%zu)", len);
1966 if (!kvm_read_all(kd, (unsigned long)ucred.cr_groups, groups, len)) {
1967 warnx("can't read groups at %p for pid %d",
1968 ucred.cr_groups, kp->ki_pid);
1972 *cntp = ucred.cr_ngroups;
1977 procstat_getgroups_sysctl(pid_t pid, unsigned int *cntp)
1985 mib[2] = KERN_PROC_GROUPS;
1987 len = (sysconf(_SC_NGROUPS_MAX) + 1) * sizeof(gid_t);
1988 groups = malloc(len);
1989 if (groups == NULL) {
1990 warn("malloc(%zu)", len);
1993 if (sysctl(mib, nitems(mib), groups, &len, NULL, 0) == -1) {
1994 warn("sysctl: kern.proc.groups: %d", pid);
1998 *cntp = len / sizeof(gid_t);
2003 procstat_getgroups_core(struct procstat_core *core, unsigned int *cntp)
2008 groups = procstat_core_get(core, PSC_TYPE_GROUPS, NULL, &len);
2011 *cntp = len / sizeof(gid_t);
2016 procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp,
2019 switch(procstat->type) {
2021 return (procstat_getgroups_kvm(procstat->kd, kp, cntp));
2022 case PROCSTAT_SYSCTL:
2023 return (procstat_getgroups_sysctl(kp->ki_pid, cntp));
2025 return (procstat_getgroups_core(procstat->core, cntp));
2027 warnx("unknown access method: %d", procstat->type);
2033 procstat_freegroups(struct procstat *procstat __unused, gid_t *groups)
2040 procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned short *maskp)
2046 if (kp->ki_fd == NULL)
2048 if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &fd, sizeof(fd))) {
2049 warnx("can't read filedesc at %p for pid %d", kp->ki_fd,
2053 *maskp = fd.fd_cmask;
2058 procstat_getumask_sysctl(pid_t pid, unsigned short *maskp)
2066 mib[2] = KERN_PROC_UMASK;
2068 len = sizeof(*maskp);
2069 error = sysctl(mib, nitems(mib), maskp, &len, NULL, 0);
2070 if (error != 0 && errno != ESRCH && errno != EPERM)
2071 warn("sysctl: kern.proc.umask: %d", pid);
2076 procstat_getumask_core(struct procstat_core *core, unsigned short *maskp)
2079 unsigned short *buf;
2081 buf = procstat_core_get(core, PSC_TYPE_UMASK, NULL, &len);
2084 if (len < sizeof(*maskp)) {
2094 procstat_getumask(struct procstat *procstat, struct kinfo_proc *kp,
2095 unsigned short *maskp)
2097 switch(procstat->type) {
2099 return (procstat_getumask_kvm(procstat->kd, kp, maskp));
2100 case PROCSTAT_SYSCTL:
2101 return (procstat_getumask_sysctl(kp->ki_pid, maskp));
2103 return (procstat_getumask_core(procstat->core, maskp));
2105 warnx("unknown access method: %d", procstat->type);
2111 procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp, int which,
2112 struct rlimit* rlimit)
2115 unsigned long offset;
2119 assert(which >= 0 && which < RLIM_NLIMITS);
2120 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2122 warnx("can't read proc struct at %p for pid %d",
2123 kp->ki_paddr, kp->ki_pid);
2126 if (proc.p_limit == NULL)
2128 offset = (unsigned long)proc.p_limit + sizeof(struct rlimit) * which;
2129 if (!kvm_read_all(kd, offset, rlimit, sizeof(*rlimit))) {
2130 warnx("can't read rlimit struct at %p for pid %d",
2131 (void *)offset, kp->ki_pid);
2138 procstat_getrlimit_sysctl(pid_t pid, int which, struct rlimit* rlimit)
2144 name[1] = KERN_PROC;
2145 name[2] = KERN_PROC_RLIMIT;
2148 len = sizeof(struct rlimit);
2149 error = sysctl(name, nitems(name), rlimit, &len, NULL, 0);
2150 if (error < 0 && errno != ESRCH) {
2151 warn("sysctl: kern.proc.rlimit: %d", pid);
2154 if (error < 0 || len != sizeof(struct rlimit))
2160 procstat_getrlimit_core(struct procstat_core *core, int which,
2161 struct rlimit* rlimit)
2164 struct rlimit* rlimits;
2166 if (which < 0 || which >= RLIM_NLIMITS) {
2168 warn("getrlimit: which");
2171 rlimits = procstat_core_get(core, PSC_TYPE_RLIMIT, NULL, &len);
2172 if (rlimits == NULL)
2174 if (len < sizeof(struct rlimit) * RLIM_NLIMITS) {
2178 *rlimit = rlimits[which];
2183 procstat_getrlimit(struct procstat *procstat, struct kinfo_proc *kp, int which,
2184 struct rlimit* rlimit)
2186 switch(procstat->type) {
2188 return (procstat_getrlimit_kvm(procstat->kd, kp, which,
2190 case PROCSTAT_SYSCTL:
2191 return (procstat_getrlimit_sysctl(kp->ki_pid, which, rlimit));
2193 return (procstat_getrlimit_core(procstat->core, which, rlimit));
2195 warnx("unknown access method: %d", procstat->type);
2201 procstat_getpathname_sysctl(pid_t pid, char *pathname, size_t maxlen)
2207 name[1] = KERN_PROC;
2208 name[2] = KERN_PROC_PATHNAME;
2211 error = sysctl(name, nitems(name), pathname, &len, NULL, 0);
2212 if (error != 0 && errno != ESRCH)
2213 warn("sysctl: kern.proc.pathname: %d", pid);
2220 procstat_getpathname_core(struct procstat_core *core, char *pathname,
2223 struct kinfo_file *files;
2226 files = kinfo_getfile_core(core, &cnt);
2230 for (i = 0; i < cnt; i++) {
2231 if (files[i].kf_fd != KF_FD_TYPE_TEXT)
2233 strncpy(pathname, files[i].kf_path, maxlen);
2242 procstat_getpathname(struct procstat *procstat, struct kinfo_proc *kp,
2243 char *pathname, size_t maxlen)
2245 switch(procstat->type) {
2247 /* XXX: Return empty string. */
2251 case PROCSTAT_SYSCTL:
2252 return (procstat_getpathname_sysctl(kp->ki_pid, pathname,
2255 return (procstat_getpathname_core(procstat->core, pathname,
2258 warnx("unknown access method: %d", procstat->type);
2264 procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp, int *osrelp)
2270 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2272 warnx("can't read proc struct at %p for pid %d",
2273 kp->ki_paddr, kp->ki_pid);
2276 *osrelp = proc.p_osrel;
2281 procstat_getosrel_sysctl(pid_t pid, int *osrelp)
2287 name[1] = KERN_PROC;
2288 name[2] = KERN_PROC_OSREL;
2290 len = sizeof(*osrelp);
2291 error = sysctl(name, nitems(name), osrelp, &len, NULL, 0);
2292 if (error != 0 && errno != ESRCH)
2293 warn("sysctl: kern.proc.osrel: %d", pid);
2298 procstat_getosrel_core(struct procstat_core *core, int *osrelp)
2303 buf = procstat_core_get(core, PSC_TYPE_OSREL, NULL, &len);
2306 if (len < sizeof(*osrelp)) {
2316 procstat_getosrel(struct procstat *procstat, struct kinfo_proc *kp, int *osrelp)
2318 switch(procstat->type) {
2320 return (procstat_getosrel_kvm(procstat->kd, kp, osrelp));
2321 case PROCSTAT_SYSCTL:
2322 return (procstat_getosrel_sysctl(kp->ki_pid, osrelp));
2324 return (procstat_getosrel_core(procstat->core, osrelp));
2326 warnx("unknown access method: %d", procstat->type);
2331 #define PROC_AUXV_MAX 256
2333 #if __ELF_WORD_SIZE == 64
2334 static const char *elf32_sv_names[] = {
2340 is_elf32_sysctl(pid_t pid)
2344 static char sv_name[256];
2347 name[1] = KERN_PROC;
2348 name[2] = KERN_PROC_SV_NAME;
2350 len = sizeof(sv_name);
2351 error = sysctl(name, nitems(name), sv_name, &len, NULL, 0);
2352 if (error != 0 || len == 0)
2354 for (i = 0; i < sizeof(elf32_sv_names) / sizeof(*elf32_sv_names); i++) {
2355 if (strncmp(sv_name, elf32_sv_names[i], sizeof(sv_name)) == 0)
2361 static Elf_Auxinfo *
2362 procstat_getauxv32_sysctl(pid_t pid, unsigned int *cntp)
2365 Elf32_Auxinfo *auxv32;
2368 unsigned int i, count;
2372 name[1] = KERN_PROC;
2373 name[2] = KERN_PROC_AUXV;
2375 len = PROC_AUXV_MAX * sizeof(Elf32_Auxinfo);
2377 auxv32 = malloc(len);
2378 if (auxv32 == NULL) {
2379 warn("malloc(%zu)", len);
2382 if (sysctl(name, nitems(name), auxv32, &len, NULL, 0) == -1) {
2383 if (errno != ESRCH && errno != EPERM)
2384 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
2387 count = len / sizeof(Elf_Auxinfo);
2388 auxv = malloc(count * sizeof(Elf_Auxinfo));
2390 warn("malloc(%zu)", count * sizeof(Elf_Auxinfo));
2393 for (i = 0; i < count; i++) {
2395 * XXX: We expect that values for a_type on a 32-bit platform
2396 * are directly mapped to values on 64-bit one, which is not
2399 auxv[i].a_type = auxv32[i].a_type;
2400 ptr = &auxv32[i].a_un;
2401 auxv[i].a_un.a_val = *((uint32_t *)ptr);
2408 #endif /* __ELF_WORD_SIZE == 64 */
2410 static Elf_Auxinfo *
2411 procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp)
2417 #if __ELF_WORD_SIZE == 64
2418 if (is_elf32_sysctl(pid))
2419 return (procstat_getauxv32_sysctl(pid, cntp));
2422 name[1] = KERN_PROC;
2423 name[2] = KERN_PROC_AUXV;
2425 len = PROC_AUXV_MAX * sizeof(Elf_Auxinfo);
2428 warn("malloc(%zu)", len);
2431 if (sysctl(name, nitems(name), auxv, &len, NULL, 0) == -1) {
2432 if (errno != ESRCH && errno != EPERM)
2433 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
2437 *cntp = len / sizeof(Elf_Auxinfo);
2441 static Elf_Auxinfo *
2442 procstat_getauxv_core(struct procstat_core *core, unsigned int *cntp)
2447 auxv = procstat_core_get(core, PSC_TYPE_AUXV, NULL, &len);
2450 *cntp = len / sizeof(Elf_Auxinfo);
2455 procstat_getauxv(struct procstat *procstat, struct kinfo_proc *kp,
2458 switch(procstat->type) {
2460 warnx("kvm method is not supported");
2462 case PROCSTAT_SYSCTL:
2463 return (procstat_getauxv_sysctl(kp->ki_pid, cntp));
2465 return (procstat_getauxv_core(procstat->core, cntp));
2467 warnx("unknown access method: %d", procstat->type);
2473 procstat_freeauxv(struct procstat *procstat __unused, Elf_Auxinfo *auxv)
2479 static struct ptrace_lwpinfo *
2480 procstat_getptlwpinfo_core(struct procstat_core *core, unsigned int *cntp)
2483 struct ptrace_lwpinfo *pl;
2487 cnt = procstat_core_note_count(core, PSC_TYPE_PTLWPINFO);
2491 len = cnt * sizeof(*pl);
2492 buf = calloc(1, len);
2493 pl = procstat_core_get(core, PSC_TYPE_PTLWPINFO, buf, &len);
2498 *cntp = len / sizeof(*pl);
2502 struct ptrace_lwpinfo *
2503 procstat_getptlwpinfo(struct procstat *procstat, unsigned int *cntp)
2505 switch (procstat->type) {
2507 return (procstat_getptlwpinfo_core(procstat->core, cntp));
2509 warnx("unknown access method: %d", procstat->type);
2515 procstat_freeptlwpinfo(struct procstat *procstat __unused,
2516 struct ptrace_lwpinfo *pl)
2521 static struct kinfo_kstack *
2522 procstat_getkstack_sysctl(pid_t pid, int *cntp)
2524 struct kinfo_kstack *kkstp;
2529 name[1] = KERN_PROC;
2530 name[2] = KERN_PROC_KSTACK;
2534 error = sysctl(name, nitems(name), NULL, &len, NULL, 0);
2535 if (error < 0 && errno != ESRCH && errno != EPERM && errno != ENOENT) {
2536 warn("sysctl: kern.proc.kstack: %d", pid);
2539 if (error == -1 && errno == ENOENT) {
2540 warnx("sysctl: kern.proc.kstack unavailable"
2541 " (options DDB or options STACK required in kernel)");
2546 kkstp = malloc(len);
2547 if (kkstp == NULL) {
2548 warn("malloc(%zu)", len);
2551 if (sysctl(name, nitems(name), kkstp, &len, NULL, 0) == -1) {
2552 warn("sysctl: kern.proc.pid: %d", pid);
2556 *cntp = len / sizeof(*kkstp);
2561 struct kinfo_kstack *
2562 procstat_getkstack(struct procstat *procstat, struct kinfo_proc *kp,
2565 switch(procstat->type) {
2567 warnx("kvm method is not supported");
2569 case PROCSTAT_SYSCTL:
2570 return (procstat_getkstack_sysctl(kp->ki_pid, cntp));
2572 warnx("core method is not supported");
2575 warnx("unknown access method: %d", procstat->type);
2581 procstat_freekstack(struct procstat *procstat __unused,
2582 struct kinfo_kstack *kkstp)