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 <fs/devfs/devfs.h>
76 #include <fs/devfs/devfs_int.h>
77 #include <nfs/nfsproto.h>
78 #include <nfsclient/nfs.h>
79 #include <nfsclient/nfsnode.h>
82 #include <vm/vm_map.h>
83 #include <vm/vm_object.h>
85 #include <net/route.h>
86 #include <netinet/in.h>
87 #include <netinet/in_systm.h>
88 #include <netinet/ip.h>
90 #include <netinet/in_pcb.h>
108 #include <libprocstat.h>
109 #include "libprocstat_internal.h"
110 #include "common_kvm.h"
113 int statfs(const char *, struct statfs *); /* XXX */
115 #define PROCSTAT_KVM 1
116 #define PROCSTAT_SYSCTL 2
117 #define PROCSTAT_CORE 3
119 static char **getargv(struct procstat *procstat, struct kinfo_proc *kp,
120 size_t nchr, int env);
121 static char *getmnton(kvm_t *kd, struct mount *m);
122 static struct kinfo_vmentry * kinfo_getvmmap_core(struct procstat_core *core,
124 static Elf_Auxinfo *procstat_getauxv_core(struct procstat_core *core,
126 static Elf_Auxinfo *procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp);
127 static struct filestat_list *procstat_getfiles_kvm(
128 struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
129 static struct filestat_list *procstat_getfiles_sysctl(
130 struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
131 static int procstat_get_pipe_info_sysctl(struct filestat *fst,
132 struct pipestat *pipe, char *errbuf);
133 static int procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
134 struct pipestat *pipe, char *errbuf);
135 static int procstat_get_pts_info_sysctl(struct filestat *fst,
136 struct ptsstat *pts, char *errbuf);
137 static int procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
138 struct ptsstat *pts, char *errbuf);
139 static int procstat_get_sem_info_sysctl(struct filestat *fst,
140 struct semstat *sem, char *errbuf);
141 static int procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
142 struct semstat *sem, char *errbuf);
143 static int procstat_get_shm_info_sysctl(struct filestat *fst,
144 struct shmstat *shm, char *errbuf);
145 static int procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
146 struct shmstat *shm, char *errbuf);
147 static int procstat_get_socket_info_sysctl(struct filestat *fst,
148 struct sockstat *sock, char *errbuf);
149 static int procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
150 struct sockstat *sock, char *errbuf);
151 static int to_filestat_flags(int flags);
152 static int procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
153 struct vnstat *vn, char *errbuf);
154 static int procstat_get_vnode_info_sysctl(struct filestat *fst,
155 struct vnstat *vn, char *errbuf);
156 static gid_t *procstat_getgroups_core(struct procstat_core *core,
157 unsigned int *count);
158 static gid_t * procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp,
159 unsigned int *count);
160 static gid_t *procstat_getgroups_sysctl(pid_t pid, unsigned int *count);
161 static struct kinfo_kstack *procstat_getkstack_sysctl(pid_t pid,
163 static int procstat_getosrel_core(struct procstat_core *core,
165 static int procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp,
167 static int procstat_getosrel_sysctl(pid_t pid, int *osrelp);
168 static int procstat_getpathname_core(struct procstat_core *core,
169 char *pathname, size_t maxlen);
170 static int procstat_getpathname_sysctl(pid_t pid, char *pathname,
172 static int procstat_getrlimit_core(struct procstat_core *core, int which,
173 struct rlimit* rlimit);
174 static int procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp,
175 int which, struct rlimit* rlimit);
176 static int procstat_getrlimit_sysctl(pid_t pid, int which,
177 struct rlimit* rlimit);
178 static int procstat_getumask_core(struct procstat_core *core,
179 unsigned short *maskp);
180 static int procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp,
181 unsigned short *maskp);
182 static int procstat_getumask_sysctl(pid_t pid, unsigned short *maskp);
183 static int vntype2psfsttype(int type);
186 procstat_close(struct procstat *procstat)
190 if (procstat->type == PROCSTAT_KVM)
191 kvm_close(procstat->kd);
192 else if (procstat->type == PROCSTAT_CORE)
193 procstat_core_close(procstat->core);
194 procstat_freeargv(procstat);
195 procstat_freeenvv(procstat);
200 procstat_open_sysctl(void)
202 struct procstat *procstat;
204 procstat = calloc(1, sizeof(*procstat));
205 if (procstat == NULL) {
209 procstat->type = PROCSTAT_SYSCTL;
214 procstat_open_kvm(const char *nlistf, const char *memf)
216 struct procstat *procstat;
218 char buf[_POSIX2_LINE_MAX];
220 procstat = calloc(1, sizeof(*procstat));
221 if (procstat == NULL) {
225 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf);
227 warnx("kvm_openfiles(): %s", buf);
231 procstat->type = PROCSTAT_KVM;
237 procstat_open_core(const char *filename)
239 struct procstat *procstat;
240 struct procstat_core *core;
242 procstat = calloc(1, sizeof(*procstat));
243 if (procstat == NULL) {
247 core = procstat_core_open(filename);
252 procstat->type = PROCSTAT_CORE;
253 procstat->core = core;
258 procstat_getprocs(struct procstat *procstat, int what, int arg,
261 struct kinfo_proc *p0, *p;
270 if (procstat->type == PROCSTAT_KVM) {
272 p0 = kvm_getprocs(procstat->kd, what, arg, &cnt);
273 if (p0 == NULL || cnt <= 0)
276 len = *count * sizeof(*p);
279 warnx("malloc(%zu)", len);
284 } else if (procstat->type == PROCSTAT_SYSCTL) {
290 error = sysctl(name, nitems(name), NULL, &len, NULL, 0);
291 if (error < 0 && errno != EPERM) {
292 warn("sysctl(kern.proc)");
296 warnx("no processes?");
301 p = reallocf(p, len);
303 warnx("reallocf(%zu)", len);
307 error = sysctl(name, nitems(name), p, &len, NULL, 0);
308 } while (error < 0 && errno == ENOMEM && olen == len);
309 if (error < 0 && errno != EPERM) {
310 warn("sysctl(kern.proc)");
313 /* Perform simple consistency checks. */
314 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
315 warnx("kinfo_proc structure size mismatch (len = %zu)", len);
318 *count = len / sizeof(*p);
320 } else if (procstat->type == PROCSTAT_CORE) {
321 p = procstat_core_get(procstat->core, PSC_TYPE_PROC, NULL,
323 if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
324 warnx("kinfo_proc structure size mismatch");
327 *count = len / sizeof(*p);
330 warnx("unknown access method: %d", procstat->type);
340 procstat_freeprocs(struct procstat *procstat __unused, struct kinfo_proc *p)
348 struct filestat_list *
349 procstat_getfiles(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
352 switch(procstat->type) {
354 return (procstat_getfiles_kvm(procstat, kp, mmapped));
355 case PROCSTAT_SYSCTL:
357 return (procstat_getfiles_sysctl(procstat, kp, mmapped));
359 warnx("unknown access method: %d", procstat->type);
365 procstat_freefiles(struct procstat *procstat, struct filestat_list *head)
367 struct filestat *fst, *tmp;
369 STAILQ_FOREACH_SAFE(fst, head, next, tmp) {
370 if (fst->fs_path != NULL)
375 if (procstat->vmentries != NULL) {
376 free(procstat->vmentries);
377 procstat->vmentries = NULL;
379 if (procstat->files != NULL) {
380 free(procstat->files);
381 procstat->files = NULL;
385 static struct filestat *
386 filestat_new_entry(void *typedep, int type, int fd, int fflags, int uflags,
387 int refcount, off_t offset, char *path, cap_rights_t *cap_rightsp)
389 struct filestat *entry;
391 entry = calloc(1, sizeof(*entry));
396 entry->fs_typedep = typedep;
397 entry->fs_fflags = fflags;
398 entry->fs_uflags = uflags;
400 entry->fs_type = type;
401 entry->fs_ref_count = refcount;
402 entry->fs_offset = offset;
403 entry->fs_path = path;
404 if (cap_rightsp != NULL)
405 entry->fs_cap_rights = *cap_rightsp;
407 cap_rights_init(&entry->fs_cap_rights);
411 static struct vnode *
412 getctty(kvm_t *kd, struct kinfo_proc *kp)
420 error = kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
423 warnx("can't read proc struct at %p for pid %d",
424 kp->ki_paddr, kp->ki_pid);
427 if (proc.p_pgrp == NULL)
429 error = kvm_read_all(kd, (unsigned long)proc.p_pgrp, &pgrp,
432 warnx("can't read pgrp struct at %p for pid %d",
433 proc.p_pgrp, kp->ki_pid);
436 error = kvm_read_all(kd, (unsigned long)pgrp.pg_session, &sess,
439 warnx("can't read session struct at %p for pid %d",
440 pgrp.pg_session, kp->ki_pid);
443 return (sess.s_ttyvp);
447 procstat_vm_map_reader(void *token, vm_map_entry_t addr, vm_map_entry_t dest)
452 return (kvm_read_all(kd, (unsigned long)addr, dest, sizeof(*dest)));
455 static struct filestat_list *
456 procstat_getfiles_kvm(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
459 struct filedesc filed;
460 struct pwddesc pathsd;
461 struct fdescenttbl *fdt;
463 unsigned long pwd_addr;
464 struct vm_map_entry vmentry;
465 struct vm_object object;
466 struct vmspace vmspace;
467 vm_map_entry_t entryp;
470 struct filestat *entry;
471 struct filestat_list *head;
485 if (kp->ki_fd == NULL || kp->ki_pd == NULL)
487 if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &filed,
489 warnx("can't read filedesc at %p", (void *)kp->ki_fd);
492 if (!kvm_read_all(kd, (unsigned long)kp->ki_pd, &pathsd,
494 warnx("can't read pwddesc at %p", (void *)kp->ki_pd);
498 pwd_addr = (unsigned long)(PWDDESC_KVM_LOAD_PWD(&pathsd));
500 if (!kvm_read_all(kd, pwd_addr, &pwd, sizeof(pwd))) {
501 warnx("can't read fd_pwd at %p", (void *)pwd_addr);
508 * Allocate list head.
510 head = malloc(sizeof(*head));
515 /* root directory vnode, if one. */
518 entry = filestat_new_entry(pwd.pwd_rdir, PS_FST_TYPE_VNODE, -1,
519 PS_FST_FFLAG_READ, PS_FST_UFLAG_RDIR, 0, 0, NULL, NULL);
521 STAILQ_INSERT_TAIL(head, entry, next);
523 /* current working directory vnode. */
525 entry = filestat_new_entry(pwd.pwd_cdir, PS_FST_TYPE_VNODE, -1,
526 PS_FST_FFLAG_READ, PS_FST_UFLAG_CDIR, 0, 0, NULL, NULL);
528 STAILQ_INSERT_TAIL(head, entry, next);
530 /* jail root, if any. */
532 entry = filestat_new_entry(pwd.pwd_jdir, PS_FST_TYPE_VNODE, -1,
533 PS_FST_FFLAG_READ, PS_FST_UFLAG_JAIL, 0, 0, NULL, NULL);
535 STAILQ_INSERT_TAIL(head, entry, next);
538 /* ktrace vnode, if one */
540 entry = filestat_new_entry(kp->ki_tracep, PS_FST_TYPE_VNODE, -1,
541 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
542 PS_FST_UFLAG_TRACE, 0, 0, NULL, NULL);
544 STAILQ_INSERT_TAIL(head, entry, next);
546 /* text vnode, if one */
548 entry = filestat_new_entry(kp->ki_textvp, PS_FST_TYPE_VNODE, -1,
549 PS_FST_FFLAG_READ, PS_FST_UFLAG_TEXT, 0, 0, NULL, NULL);
551 STAILQ_INSERT_TAIL(head, entry, next);
553 /* Controlling terminal. */
554 if ((vp = getctty(kd, kp)) != NULL) {
555 entry = filestat_new_entry(vp, PS_FST_TYPE_VNODE, -1,
556 PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
557 PS_FST_UFLAG_CTTY, 0, 0, NULL, NULL);
559 STAILQ_INSERT_TAIL(head, entry, next);
562 if (!kvm_read_all(kd, (unsigned long)filed.fd_files, &nfiles,
564 warnx("can't read fd_files at %p", (void *)filed.fd_files);
568 fdt_size = sizeof(*fdt) + nfiles * sizeof(struct filedescent);
569 fdt = malloc(fdt_size);
571 warn("malloc(%zu)", fdt_size);
574 if (!kvm_read_all(kd, (unsigned long)filed.fd_files, fdt, fdt_size)) {
575 warnx("cannot read file structures at %p", (void *)filed.fd_files);
579 for (i = 0; i < nfiles; i++) {
580 if (fdt->fdt_ofiles[i].fde_file == NULL) {
583 if (!kvm_read_all(kd, (unsigned long)fdt->fdt_ofiles[i].fde_file, &file,
584 sizeof(struct file))) {
585 warnx("can't read file %d at %p", i,
586 (void *)fdt->fdt_ofiles[i].fde_file);
589 switch (file.f_type) {
591 type = PS_FST_TYPE_VNODE;
595 type = PS_FST_TYPE_SOCKET;
599 type = PS_FST_TYPE_PIPE;
603 type = PS_FST_TYPE_FIFO;
608 type = PS_FST_TYPE_PTS;
613 type = PS_FST_TYPE_SEM;
617 type = PS_FST_TYPE_SHM;
621 type = PS_FST_TYPE_PROCDESC;
625 type = PS_FST_TYPE_DEV;
629 type = PS_FST_TYPE_EVENTFD;
635 /* XXXRW: No capability rights support for kvm yet. */
636 entry = filestat_new_entry(data, type, i,
637 to_filestat_flags(file.f_flag), 0, 0, 0, NULL, NULL);
639 STAILQ_INSERT_TAIL(head, entry, next);
646 * Process mmapped files if requested.
649 if (!kvm_read_all(kd, (unsigned long)kp->ki_vmspace, &vmspace,
651 warnx("can't read vmspace at %p",
652 (void *)kp->ki_vmspace);
656 vmentry = vmspace.vm_map.header;
657 for (entryp = vm_map_entry_read_succ(kd, &vmentry, procstat_vm_map_reader);
658 entryp != NULL && entryp != &kp->ki_vmspace->vm_map.header;
659 entryp = vm_map_entry_read_succ(kd, &vmentry, procstat_vm_map_reader)) {
660 if (vmentry.eflags & MAP_ENTRY_IS_SUB_MAP)
662 if ((objp = vmentry.object.vm_object) == NULL)
664 for (; objp; objp = object.backing_object) {
665 if (!kvm_read_all(kd, (unsigned long)objp,
666 &object, sizeof(object))) {
667 warnx("can't read vm_object at %p",
673 /* We want only vnode objects. */
674 if (object.type != OBJT_VNODE)
677 prot = vmentry.protection;
679 if (prot & VM_PROT_READ)
680 fflags = PS_FST_FFLAG_READ;
681 if ((vmentry.eflags & MAP_ENTRY_COW) == 0 &&
682 prot & VM_PROT_WRITE)
683 fflags |= PS_FST_FFLAG_WRITE;
686 * Create filestat entry.
688 entry = filestat_new_entry(object.handle,
689 PS_FST_TYPE_VNODE, -1, fflags,
690 PS_FST_UFLAG_MMAP, 0, 0, NULL, NULL);
692 STAILQ_INSERT_TAIL(head, entry, next);
695 warnx("can't read vm_map_entry");
702 * kinfo types to filestat translation.
705 kinfo_type2fst(int kftype)
711 { KF_TYPE_PROCDESC, PS_FST_TYPE_PROCDESC },
712 { KF_TYPE_DEV, PS_FST_TYPE_DEV },
713 { KF_TYPE_FIFO, PS_FST_TYPE_FIFO },
714 { KF_TYPE_KQUEUE, PS_FST_TYPE_KQUEUE },
715 { KF_TYPE_MQUEUE, PS_FST_TYPE_MQUEUE },
716 { KF_TYPE_NONE, PS_FST_TYPE_NONE },
717 { KF_TYPE_PIPE, PS_FST_TYPE_PIPE },
718 { KF_TYPE_PTS, PS_FST_TYPE_PTS },
719 { KF_TYPE_SEM, PS_FST_TYPE_SEM },
720 { KF_TYPE_SHM, PS_FST_TYPE_SHM },
721 { KF_TYPE_SOCKET, PS_FST_TYPE_SOCKET },
722 { KF_TYPE_VNODE, PS_FST_TYPE_VNODE },
723 { KF_TYPE_EVENTFD, PS_FST_TYPE_EVENTFD },
724 { KF_TYPE_UNKNOWN, PS_FST_TYPE_UNKNOWN }
726 #define NKFTYPES (sizeof(kftypes2fst) / sizeof(*kftypes2fst))
729 for (i = 0; i < NKFTYPES; i++)
730 if (kftypes2fst[i].kf_type == kftype)
733 return (PS_FST_TYPE_UNKNOWN);
734 return (kftypes2fst[i].fst_type);
738 * kinfo flags to filestat translation.
741 kinfo_fflags2fst(int kfflags)
747 { KF_FLAG_APPEND, PS_FST_FFLAG_APPEND },
748 { KF_FLAG_ASYNC, PS_FST_FFLAG_ASYNC },
749 { KF_FLAG_CREAT, PS_FST_FFLAG_CREAT },
750 { KF_FLAG_DIRECT, PS_FST_FFLAG_DIRECT },
751 { KF_FLAG_EXCL, PS_FST_FFLAG_EXCL },
752 { KF_FLAG_EXEC, PS_FST_FFLAG_EXEC },
753 { KF_FLAG_EXLOCK, PS_FST_FFLAG_EXLOCK },
754 { KF_FLAG_FSYNC, PS_FST_FFLAG_SYNC },
755 { KF_FLAG_HASLOCK, PS_FST_FFLAG_HASLOCK },
756 { KF_FLAG_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
757 { KF_FLAG_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
758 { KF_FLAG_READ, PS_FST_FFLAG_READ },
759 { KF_FLAG_SHLOCK, PS_FST_FFLAG_SHLOCK },
760 { KF_FLAG_TRUNC, PS_FST_FFLAG_TRUNC },
761 { KF_FLAG_WRITE, PS_FST_FFLAG_WRITE }
763 #define NKFFLAGS (sizeof(kfflags2fst) / sizeof(*kfflags2fst))
768 for (i = 0; i < NKFFLAGS; i++)
769 if ((kfflags & kfflags2fst[i].kf_flag) != 0)
770 flags |= kfflags2fst[i].fst_flag;
775 kinfo_uflags2fst(int fd)
779 case KF_FD_TYPE_CTTY:
780 return (PS_FST_UFLAG_CTTY);
782 return (PS_FST_UFLAG_CDIR);
783 case KF_FD_TYPE_JAIL:
784 return (PS_FST_UFLAG_JAIL);
785 case KF_FD_TYPE_TEXT:
786 return (PS_FST_UFLAG_TEXT);
787 case KF_FD_TYPE_TRACE:
788 return (PS_FST_UFLAG_TRACE);
789 case KF_FD_TYPE_ROOT:
790 return (PS_FST_UFLAG_RDIR);
795 static struct kinfo_file *
796 kinfo_getfile_core(struct procstat_core *core, int *cntp)
801 struct kinfo_file *kif, *kp, *kf;
803 buf = procstat_core_get(core, PSC_TYPE_FILES, NULL, &len);
807 * XXXMG: The code below is just copy&past from libutil.
808 * The code duplication can be avoided if libutil
809 * is extended to provide something like:
810 * struct kinfo_file *kinfo_getfile_from_buf(const char *buf,
811 * size_t len, int *cntp);
814 /* Pass 1: count items */
819 kf = (struct kinfo_file *)(uintptr_t)bp;
820 if (kf->kf_structsize == 0)
822 bp += kf->kf_structsize;
826 kif = calloc(cnt, sizeof(*kif));
836 kf = (struct kinfo_file *)(uintptr_t)bp;
837 if (kf->kf_structsize == 0)
839 /* Copy/expand into pre-zeroed buffer */
840 memcpy(kp, kf, kf->kf_structsize);
841 /* Advance to next packed record */
842 bp += kf->kf_structsize;
843 /* Set field size to fixed length, advance */
844 kp->kf_structsize = sizeof(*kp);
849 return (kif); /* Caller must free() return value */
852 static struct filestat_list *
853 procstat_getfiles_sysctl(struct procstat *procstat, struct kinfo_proc *kp,
856 struct kinfo_file *kif, *files;
857 struct kinfo_vmentry *kve, *vmentries;
858 struct filestat_list *head;
859 struct filestat *entry;
865 cap_rights_t cap_rights;
868 if (kp->ki_fd == NULL)
870 switch(procstat->type) {
871 case PROCSTAT_SYSCTL:
872 files = kinfo_getfile(kp->ki_pid, &cnt);
875 files = kinfo_getfile_core(procstat->core, &cnt);
878 assert(!"invalid type");
880 if (files == NULL && errno != EPERM) {
881 warn("kinfo_getfile()");
884 procstat->files = files;
887 * Allocate list head.
889 head = malloc(sizeof(*head));
893 for (i = 0; i < cnt; i++) {
896 type = kinfo_type2fst(kif->kf_type);
897 fd = kif->kf_fd >= 0 ? kif->kf_fd : -1;
898 fflags = kinfo_fflags2fst(kif->kf_flags);
899 uflags = kinfo_uflags2fst(kif->kf_fd);
900 refcount = kif->kf_ref_count;
901 offset = kif->kf_offset;
902 if (*kif->kf_path != '\0')
903 path = strdup(kif->kf_path);
906 cap_rights = kif->kf_cap_rights;
909 * Create filestat entry.
911 entry = filestat_new_entry(kif, type, fd, fflags, uflags,
912 refcount, offset, path, &cap_rights);
914 STAILQ_INSERT_TAIL(head, entry, next);
917 vmentries = procstat_getvmmap(procstat, kp, &cnt);
918 procstat->vmentries = vmentries;
919 if (vmentries == NULL || cnt == 0)
921 for (i = 0; i < cnt; i++) {
923 if (kve->kve_type != KVME_TYPE_VNODE)
926 if (kve->kve_protection & KVME_PROT_READ)
927 fflags = PS_FST_FFLAG_READ;
928 if ((kve->kve_flags & KVME_FLAG_COW) == 0 &&
929 kve->kve_protection & KVME_PROT_WRITE)
930 fflags |= PS_FST_FFLAG_WRITE;
931 offset = kve->kve_offset;
932 refcount = kve->kve_ref_count;
933 if (*kve->kve_path != '\0')
934 path = strdup(kve->kve_path);
937 entry = filestat_new_entry(kve, PS_FST_TYPE_VNODE, -1,
938 fflags, PS_FST_UFLAG_MMAP, refcount, offset, path,
941 STAILQ_INSERT_TAIL(head, entry, next);
949 procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst,
950 struct pipestat *ps, char *errbuf)
954 if (procstat->type == PROCSTAT_KVM) {
955 return (procstat_get_pipe_info_kvm(procstat->kd, fst, ps,
957 } else if (procstat->type == PROCSTAT_SYSCTL ||
958 procstat->type == PROCSTAT_CORE) {
959 return (procstat_get_pipe_info_sysctl(fst, ps, errbuf));
961 warnx("unknown access method: %d", procstat->type);
963 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
969 procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
970 struct pipestat *ps, char *errbuf)
978 bzero(ps, sizeof(*ps));
979 pipep = fst->fs_typedep;
982 if (!kvm_read_all(kd, (unsigned long)pipep, &pi, sizeof(struct pipe))) {
983 warnx("can't read pipe at %p", (void *)pipep);
986 ps->addr = (uintptr_t)pipep;
987 ps->peer = (uintptr_t)pi.pipe_peer;
988 ps->buffer_cnt = pi.pipe_buffer.cnt;
993 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
998 procstat_get_pipe_info_sysctl(struct filestat *fst, struct pipestat *ps,
999 char *errbuf __unused)
1001 struct kinfo_file *kif;
1005 bzero(ps, sizeof(*ps));
1006 kif = fst->fs_typedep;
1009 ps->addr = kif->kf_un.kf_pipe.kf_pipe_addr;
1010 ps->peer = kif->kf_un.kf_pipe.kf_pipe_peer;
1011 ps->buffer_cnt = kif->kf_un.kf_pipe.kf_pipe_buffer_cnt;
1016 procstat_get_pts_info(struct procstat *procstat, struct filestat *fst,
1017 struct ptsstat *pts, char *errbuf)
1021 if (procstat->type == PROCSTAT_KVM) {
1022 return (procstat_get_pts_info_kvm(procstat->kd, fst, pts,
1024 } else if (procstat->type == PROCSTAT_SYSCTL ||
1025 procstat->type == PROCSTAT_CORE) {
1026 return (procstat_get_pts_info_sysctl(fst, pts, errbuf));
1028 warnx("unknown access method: %d", procstat->type);
1030 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1036 procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
1037 struct ptsstat *pts, char *errbuf)
1045 bzero(pts, sizeof(*pts));
1046 ttyp = fst->fs_typedep;
1049 if (!kvm_read_all(kd, (unsigned long)ttyp, &tty, sizeof(struct tty))) {
1050 warnx("can't read tty at %p", (void *)ttyp);
1053 pts->dev = dev2udev(kd, tty.t_dev);
1054 (void)kdevtoname(kd, tty.t_dev, pts->devname);
1059 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1064 procstat_get_pts_info_sysctl(struct filestat *fst, struct ptsstat *pts,
1065 char *errbuf __unused)
1067 struct kinfo_file *kif;
1071 bzero(pts, sizeof(*pts));
1072 kif = fst->fs_typedep;
1075 pts->dev = kif->kf_un.kf_pts.kf_pts_dev;
1076 strlcpy(pts->devname, kif->kf_path, sizeof(pts->devname));
1081 procstat_get_sem_info(struct procstat *procstat, struct filestat *fst,
1082 struct semstat *sem, char *errbuf)
1086 if (procstat->type == PROCSTAT_KVM) {
1087 return (procstat_get_sem_info_kvm(procstat->kd, fst, sem,
1089 } else if (procstat->type == PROCSTAT_SYSCTL ||
1090 procstat->type == PROCSTAT_CORE) {
1091 return (procstat_get_sem_info_sysctl(fst, sem, errbuf));
1093 warnx("unknown access method: %d", procstat->type);
1095 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1101 procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
1102 struct semstat *sem, char *errbuf)
1112 bzero(sem, sizeof(*sem));
1113 ksemp = fst->fs_typedep;
1116 if (!kvm_read_all(kd, (unsigned long)ksemp, &ksem,
1117 sizeof(struct ksem))) {
1118 warnx("can't read ksem at %p", (void *)ksemp);
1121 sem->mode = S_IFREG | ksem.ks_mode;
1122 sem->value = ksem.ks_value;
1123 if (fst->fs_path == NULL && ksem.ks_path != NULL) {
1124 path = malloc(MAXPATHLEN);
1125 for (i = 0; i < MAXPATHLEN - 1; i++) {
1126 if (!kvm_read_all(kd, (unsigned long)ksem.ks_path + i,
1129 if (path[i] == '\0')
1136 fst->fs_path = path;
1142 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1147 procstat_get_sem_info_sysctl(struct filestat *fst, struct semstat *sem,
1148 char *errbuf __unused)
1150 struct kinfo_file *kif;
1154 bzero(sem, sizeof(*sem));
1155 kif = fst->fs_typedep;
1158 sem->value = kif->kf_un.kf_sem.kf_sem_value;
1159 sem->mode = kif->kf_un.kf_sem.kf_sem_mode;
1164 procstat_get_shm_info(struct procstat *procstat, struct filestat *fst,
1165 struct shmstat *shm, char *errbuf)
1169 if (procstat->type == PROCSTAT_KVM) {
1170 return (procstat_get_shm_info_kvm(procstat->kd, fst, shm,
1172 } else if (procstat->type == PROCSTAT_SYSCTL ||
1173 procstat->type == PROCSTAT_CORE) {
1174 return (procstat_get_shm_info_sysctl(fst, shm, errbuf));
1176 warnx("unknown access method: %d", procstat->type);
1178 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1184 procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
1185 struct shmstat *shm, char *errbuf)
1195 bzero(shm, sizeof(*shm));
1196 shmfdp = fst->fs_typedep;
1199 if (!kvm_read_all(kd, (unsigned long)shmfdp, &shmfd,
1200 sizeof(struct shmfd))) {
1201 warnx("can't read shmfd at %p", (void *)shmfdp);
1204 shm->mode = S_IFREG | shmfd.shm_mode;
1205 shm->size = shmfd.shm_size;
1206 if (fst->fs_path == NULL && shmfd.shm_path != NULL) {
1207 path = malloc(MAXPATHLEN);
1208 for (i = 0; i < MAXPATHLEN - 1; i++) {
1209 if (!kvm_read_all(kd, (unsigned long)shmfd.shm_path + i,
1212 if (path[i] == '\0')
1219 fst->fs_path = path;
1225 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1230 procstat_get_shm_info_sysctl(struct filestat *fst, struct shmstat *shm,
1231 char *errbuf __unused)
1233 struct kinfo_file *kif;
1237 bzero(shm, sizeof(*shm));
1238 kif = fst->fs_typedep;
1241 shm->size = kif->kf_un.kf_file.kf_file_size;
1242 shm->mode = kif->kf_un.kf_file.kf_file_mode;
1247 procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst,
1248 struct vnstat *vn, char *errbuf)
1252 if (procstat->type == PROCSTAT_KVM) {
1253 return (procstat_get_vnode_info_kvm(procstat->kd, fst, vn,
1255 } else if (procstat->type == PROCSTAT_SYSCTL ||
1256 procstat->type == PROCSTAT_CORE) {
1257 return (procstat_get_vnode_info_sysctl(fst, vn, errbuf));
1259 warnx("unknown access method: %d", procstat->type);
1261 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1267 procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
1268 struct vnstat *vn, char *errbuf)
1270 /* Filesystem specific handlers. */
1271 #define FSTYPE(fst) {#fst, fst##_filestat}
1274 int (*handler)(kvm_t *kd, struct vnode *vp,
1284 #ifdef LIBPROCSTAT_ZFS
1288 #define NTYPES (sizeof(fstypes) / sizeof(*fstypes))
1298 vp = fst->fs_typedep;
1301 error = kvm_read_all(kd, (unsigned long)vp, &vnode, sizeof(vnode));
1303 warnx("can't read vnode at %p", (void *)vp);
1306 bzero(vn, sizeof(*vn));
1307 vn->vn_type = vntype2psfsttype(vnode.v_type);
1308 if (vnode.v_type == VNON || vnode.v_type == VBAD)
1310 error = kvm_read_all(kd, (unsigned long)vnode.v_lock.lock_object.lo_name,
1311 tagstr, sizeof(tagstr));
1313 warnx("can't read lo_name at %p", (void *)vp);
1316 tagstr[sizeof(tagstr) - 1] = '\0';
1319 * Find appropriate handler.
1321 for (i = 0; i < NTYPES; i++)
1322 if (!strcmp(fstypes[i].tag, tagstr)) {
1323 if (fstypes[i].handler(kd, &vnode, vn) != 0) {
1330 snprintf(errbuf, _POSIX2_LINE_MAX, "?(%s)", tagstr);
1333 vn->vn_mntdir = getmnton(kd, vnode.v_mount);
1334 if ((vnode.v_type == VBLK || vnode.v_type == VCHR) &&
1335 vnode.v_rdev != NULL){
1336 vn->vn_dev = dev2udev(kd, vnode.v_rdev);
1337 (void)kdevtoname(kd, vnode.v_rdev, vn->vn_devname);
1345 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1350 * kinfo vnode type to filestat translation.
1353 kinfo_vtype2fst(int kfvtype)
1358 } kfvtypes2fst[] = {
1359 { KF_VTYPE_VBAD, PS_FST_VTYPE_VBAD },
1360 { KF_VTYPE_VBLK, PS_FST_VTYPE_VBLK },
1361 { KF_VTYPE_VCHR, PS_FST_VTYPE_VCHR },
1362 { KF_VTYPE_VDIR, PS_FST_VTYPE_VDIR },
1363 { KF_VTYPE_VFIFO, PS_FST_VTYPE_VFIFO },
1364 { KF_VTYPE_VLNK, PS_FST_VTYPE_VLNK },
1365 { KF_VTYPE_VNON, PS_FST_VTYPE_VNON },
1366 { KF_VTYPE_VREG, PS_FST_VTYPE_VREG },
1367 { KF_VTYPE_VSOCK, PS_FST_VTYPE_VSOCK }
1369 #define NKFVTYPES (sizeof(kfvtypes2fst) / sizeof(*kfvtypes2fst))
1372 for (i = 0; i < NKFVTYPES; i++)
1373 if (kfvtypes2fst[i].kf_vtype == kfvtype)
1376 return (PS_FST_VTYPE_UNKNOWN);
1377 return (kfvtypes2fst[i].fst_vtype);
1381 procstat_get_vnode_info_sysctl(struct filestat *fst, struct vnstat *vn,
1384 struct statfs stbuf;
1385 struct kinfo_file *kif;
1386 struct kinfo_vmentry *kve;
1398 bzero(vn, sizeof(*vn));
1399 if (fst->fs_typedep == NULL)
1401 if (fst->fs_uflags & PS_FST_UFLAG_MMAP) {
1402 kve = fst->fs_typedep;
1403 fileid = kve->kve_vn_fileid;
1404 fsid = kve->kve_vn_fsid;
1405 mode = kve->kve_vn_mode;
1406 path = kve->kve_path;
1407 rdev = kve->kve_vn_rdev;
1408 size = kve->kve_vn_size;
1409 vntype = kinfo_vtype2fst(kve->kve_vn_type);
1410 status = kve->kve_status;
1412 kif = fst->fs_typedep;
1413 fileid = kif->kf_un.kf_file.kf_file_fileid;
1414 fsid = kif->kf_un.kf_file.kf_file_fsid;
1415 mode = kif->kf_un.kf_file.kf_file_mode;
1416 path = kif->kf_path;
1417 rdev = kif->kf_un.kf_file.kf_file_rdev;
1418 size = kif->kf_un.kf_file.kf_file_size;
1419 vntype = kinfo_vtype2fst(kif->kf_vnode_type);
1420 status = kif->kf_status;
1422 vn->vn_type = vntype;
1423 if (vntype == PS_FST_VTYPE_VNON || vntype == PS_FST_VTYPE_VBAD)
1425 if ((status & KF_ATTR_VALID) == 0) {
1426 if (errbuf != NULL) {
1427 snprintf(errbuf, _POSIX2_LINE_MAX,
1428 "? (no info available)");
1432 if (path && *path) {
1433 statfs(path, &stbuf);
1434 vn->vn_mntdir = strdup(stbuf.f_mntonname);
1436 vn->vn_mntdir = strdup("-");
1438 if (vntype == PS_FST_VTYPE_VBLK) {
1439 name = devname(rdev, S_IFBLK);
1441 strlcpy(vn->vn_devname, name,
1442 sizeof(vn->vn_devname));
1443 } else if (vntype == PS_FST_VTYPE_VCHR) {
1444 name = devname(vn->vn_dev, S_IFCHR);
1446 strlcpy(vn->vn_devname, name,
1447 sizeof(vn->vn_devname));
1450 vn->vn_fileid = fileid;
1457 procstat_get_socket_info(struct procstat *procstat, struct filestat *fst,
1458 struct sockstat *sock, char *errbuf)
1462 if (procstat->type == PROCSTAT_KVM) {
1463 return (procstat_get_socket_info_kvm(procstat->kd, fst, sock,
1465 } else if (procstat->type == PROCSTAT_SYSCTL ||
1466 procstat->type == PROCSTAT_CORE) {
1467 return (procstat_get_socket_info_sysctl(fst, sock, errbuf));
1469 warnx("unknown access method: %d", procstat->type);
1471 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1477 procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
1478 struct sockstat *sock, char *errbuf)
1482 struct protosw proto;
1491 bzero(sock, sizeof(*sock));
1492 so = fst->fs_typedep;
1495 sock->so_addr = (uintptr_t)so;
1496 /* fill in socket */
1497 if (!kvm_read_all(kd, (unsigned long)so, &s,
1498 sizeof(struct socket))) {
1499 warnx("can't read sock at %p", (void *)so);
1502 /* fill in protosw entry */
1503 if (!kvm_read_all(kd, (unsigned long)s.so_proto, &proto,
1504 sizeof(struct protosw))) {
1505 warnx("can't read protosw at %p", (void *)s.so_proto);
1508 /* fill in domain */
1509 if (!kvm_read_all(kd, (unsigned long)proto.pr_domain, &dom,
1510 sizeof(struct domain))) {
1511 warnx("can't read domain at %p",
1512 (void *)proto.pr_domain);
1515 if ((len = kvm_read(kd, (unsigned long)dom.dom_name, sock->dname,
1516 sizeof(sock->dname) - 1)) < 0) {
1517 warnx("can't read domain name at %p", (void *)dom.dom_name);
1518 sock->dname[0] = '\0';
1521 sock->dname[len] = '\0';
1524 * Fill in known data.
1526 sock->type = s.so_type;
1527 sock->proto = proto.pr_protocol;
1528 sock->dom_family = dom.dom_family;
1529 sock->so_pcb = (uintptr_t)s.so_pcb;
1532 * Protocol specific data.
1534 switch(dom.dom_family) {
1537 if (proto.pr_protocol == IPPROTO_TCP) {
1539 if (kvm_read(kd, (u_long)s.so_pcb,
1540 (char *)&inpcb, sizeof(struct inpcb))
1541 != sizeof(struct inpcb)) {
1542 warnx("can't read inpcb at %p",
1546 (uintptr_t)inpcb.inp_ppcb;
1547 sock->sendq = s.so_snd.sb_ccc;
1548 sock->recvq = s.so_rcv.sb_ccc;
1554 if (kvm_read(kd, (u_long)s.so_pcb, (char *)&unpcb,
1555 sizeof(struct unpcb)) != sizeof(struct unpcb)){
1556 warnx("can't read unpcb at %p",
1558 } else if (unpcb.unp_conn) {
1559 sock->so_rcv_sb_state = s.so_rcv.sb_state;
1560 sock->so_snd_sb_state = s.so_snd.sb_state;
1561 sock->unp_conn = (uintptr_t)unpcb.unp_conn;
1562 sock->sendq = s.so_snd.sb_ccc;
1563 sock->recvq = s.so_rcv.sb_ccc;
1574 snprintf(errbuf, _POSIX2_LINE_MAX, "error");
1579 procstat_get_socket_info_sysctl(struct filestat *fst, struct sockstat *sock,
1580 char *errbuf __unused)
1582 struct kinfo_file *kif;
1586 bzero(sock, sizeof(*sock));
1587 kif = fst->fs_typedep;
1592 * Fill in known data.
1594 sock->type = kif->kf_sock_type;
1595 sock->proto = kif->kf_sock_protocol;
1596 sock->dom_family = kif->kf_sock_domain;
1597 sock->so_pcb = kif->kf_un.kf_sock.kf_sock_pcb;
1598 strlcpy(sock->dname, kif->kf_path, sizeof(sock->dname));
1599 bcopy(&kif->kf_un.kf_sock.kf_sa_local, &sock->sa_local,
1600 kif->kf_un.kf_sock.kf_sa_local.ss_len);
1601 bcopy(&kif->kf_un.kf_sock.kf_sa_peer, &sock->sa_peer,
1602 kif->kf_un.kf_sock.kf_sa_peer.ss_len);
1605 * Protocol specific data.
1607 switch(sock->dom_family) {
1610 if (sock->proto == IPPROTO_TCP) {
1611 sock->inp_ppcb = kif->kf_un.kf_sock.kf_sock_inpcb;
1612 sock->sendq = kif->kf_un.kf_sock.kf_sock_sendq;
1613 sock->recvq = kif->kf_un.kf_sock.kf_sock_recvq;
1617 if (kif->kf_un.kf_sock.kf_sock_unpconn != 0) {
1618 sock->so_rcv_sb_state =
1619 kif->kf_un.kf_sock.kf_sock_rcv_sb_state;
1620 sock->so_snd_sb_state =
1621 kif->kf_un.kf_sock.kf_sock_snd_sb_state;
1623 kif->kf_un.kf_sock.kf_sock_unpconn;
1624 sock->sendq = kif->kf_un.kf_sock.kf_sock_sendq;
1625 sock->recvq = kif->kf_un.kf_sock.kf_sock_recvq;
1635 * Descriptor flags to filestat translation.
1638 to_filestat_flags(int flags)
1644 { FREAD, PS_FST_FFLAG_READ },
1645 { FWRITE, PS_FST_FFLAG_WRITE },
1646 { O_APPEND, PS_FST_FFLAG_APPEND },
1647 { O_ASYNC, PS_FST_FFLAG_ASYNC },
1648 { O_CREAT, PS_FST_FFLAG_CREAT },
1649 { O_DIRECT, PS_FST_FFLAG_DIRECT },
1650 { O_EXCL, PS_FST_FFLAG_EXCL },
1651 { O_EXEC, PS_FST_FFLAG_EXEC },
1652 { O_EXLOCK, PS_FST_FFLAG_EXLOCK },
1653 { O_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
1654 { O_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
1655 { O_SHLOCK, PS_FST_FFLAG_SHLOCK },
1656 { O_SYNC, PS_FST_FFLAG_SYNC },
1657 { O_TRUNC, PS_FST_FFLAG_TRUNC }
1659 #define NFSTFLAGS (sizeof(fstflags) / sizeof(*fstflags))
1664 for (i = 0; i < NFSTFLAGS; i++)
1665 if (flags & fstflags[i].flag)
1666 fst_flags |= fstflags[i].fst_flag;
1671 * Vnode type to filestate translation.
1674 vntype2psfsttype(int type)
1680 { VBAD, PS_FST_VTYPE_VBAD },
1681 { VBLK, PS_FST_VTYPE_VBLK },
1682 { VCHR, PS_FST_VTYPE_VCHR },
1683 { VDIR, PS_FST_VTYPE_VDIR },
1684 { VFIFO, PS_FST_VTYPE_VFIFO },
1685 { VLNK, PS_FST_VTYPE_VLNK },
1686 { VNON, PS_FST_VTYPE_VNON },
1687 { VREG, PS_FST_VTYPE_VREG },
1688 { VSOCK, PS_FST_VTYPE_VSOCK }
1690 #define NVFTYPES (sizeof(vt2fst) / sizeof(*vt2fst))
1691 unsigned int i, fst_type;
1693 fst_type = PS_FST_VTYPE_UNKNOWN;
1694 for (i = 0; i < NVFTYPES; i++) {
1695 if (type == vt2fst[i].vtype) {
1696 fst_type = vt2fst[i].fst_vtype;
1704 getmnton(kvm_t *kd, struct mount *m)
1707 static struct mtab {
1710 char mntonname[MNAMELEN + 1];
1714 for (mt = mhead; mt != NULL; mt = mt->next)
1716 return (mt->mntonname);
1717 if (!kvm_read_all(kd, (unsigned long)m, &mnt, sizeof(struct mount))) {
1718 warnx("can't read mount table at %p", (void *)m);
1721 if ((mt = malloc(sizeof (struct mtab))) == NULL)
1724 bcopy(&mnt.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
1725 mt->mntonname[MNAMELEN] = '\0';
1728 return (mt->mntonname);
1732 * Auxiliary structures and functions to get process environment or
1733 * command line arguments.
1742 static struct argvec *
1743 argvec_alloc(size_t bufsize)
1747 av = malloc(sizeof(*av));
1750 av->bufsize = bufsize;
1751 av->buf = malloc(av->bufsize);
1752 if (av->buf == NULL) {
1757 av->argv = malloc(sizeof(char *) * av->argc);
1758 if (av->argv == NULL) {
1767 argvec_free(struct argvec * av)
1776 getargv(struct procstat *procstat, struct kinfo_proc *kp, size_t nchr, int env)
1778 int error, name[4], argc, i;
1779 struct argvec *av, **avp;
1786 if (procstat->type == PROCSTAT_KVM) {
1787 warnx("can't use kvm access method");
1790 if (procstat->type != PROCSTAT_SYSCTL &&
1791 procstat->type != PROCSTAT_CORE) {
1792 warnx("unknown access method: %d", procstat->type);
1796 if (nchr == 0 || nchr > ARG_MAX)
1799 avp = (struct argvec **)(env ? &procstat->argv : &procstat->envv);
1804 av = argvec_alloc(nchr);
1807 warn("malloc(%zu)", nchr);
1811 } else if (av->bufsize < nchr) {
1812 av->buf = reallocf(av->buf, nchr);
1813 if (av->buf == NULL) {
1814 warn("malloc(%zu)", nchr);
1818 if (procstat->type == PROCSTAT_SYSCTL) {
1820 name[1] = KERN_PROC;
1821 name[2] = env ? KERN_PROC_ENV : KERN_PROC_ARGS;
1822 name[3] = kp->ki_pid;
1824 error = sysctl(name, nitems(name), av->buf, &len, NULL, 0);
1825 if (error != 0 && errno != ESRCH && errno != EPERM)
1826 warn("sysctl(kern.proc.%s)", env ? "env" : "args");
1827 if (error != 0 || len == 0)
1829 } else /* procstat->type == PROCSTAT_CORE */ {
1830 type = env ? PSC_TYPE_ENVV : PSC_TYPE_ARGV;
1832 if (procstat_core_get(procstat->core, type, av->buf, &len)
1841 for (p = av->buf; p < av->buf + len; p += strlen(p) + 1) {
1847 argv = realloc(argv, sizeof(char *) * argc);
1849 warn("malloc(%zu)", sizeof(char *) * argc);
1861 * Return process command line arguments.
1864 procstat_getargv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
1867 return (getargv(procstat, p, nchr, 0));
1871 * Free the buffer allocated by procstat_getargv().
1874 procstat_freeargv(struct procstat *procstat)
1877 if (procstat->argv != NULL) {
1878 argvec_free(procstat->argv);
1879 procstat->argv = NULL;
1884 * Return process environment.
1887 procstat_getenvv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
1890 return (getargv(procstat, p, nchr, 1));
1894 * Free the buffer allocated by procstat_getenvv().
1897 procstat_freeenvv(struct procstat *procstat)
1899 if (procstat->envv != NULL) {
1900 argvec_free(procstat->envv);
1901 procstat->envv = NULL;
1905 static struct kinfo_vmentry *
1906 kinfo_getvmmap_core(struct procstat_core *core, int *cntp)
1910 char *buf, *bp, *eb;
1911 struct kinfo_vmentry *kiv, *kp, *kv;
1913 buf = procstat_core_get(core, PSC_TYPE_VMMAP, NULL, &len);
1918 * XXXMG: The code below is just copy&past from libutil.
1919 * The code duplication can be avoided if libutil
1920 * is extended to provide something like:
1921 * struct kinfo_vmentry *kinfo_getvmmap_from_buf(const char *buf,
1922 * size_t len, int *cntp);
1925 /* Pass 1: count items */
1930 kv = (struct kinfo_vmentry *)(uintptr_t)bp;
1931 if (kv->kve_structsize == 0)
1933 bp += kv->kve_structsize;
1937 kiv = calloc(cnt, sizeof(*kiv));
1945 /* Pass 2: unpack */
1947 kv = (struct kinfo_vmentry *)(uintptr_t)bp;
1948 if (kv->kve_structsize == 0)
1950 /* Copy/expand into pre-zeroed buffer */
1951 memcpy(kp, kv, kv->kve_structsize);
1952 /* Advance to next packed record */
1953 bp += kv->kve_structsize;
1954 /* Set field size to fixed length, advance */
1955 kp->kve_structsize = sizeof(*kp);
1960 return (kiv); /* Caller must free() return value */
1963 struct kinfo_vmentry *
1964 procstat_getvmmap(struct procstat *procstat, struct kinfo_proc *kp,
1968 switch(procstat->type) {
1970 warnx("kvm method is not supported");
1972 case PROCSTAT_SYSCTL:
1973 return (kinfo_getvmmap(kp->ki_pid, cntp));
1975 return (kinfo_getvmmap_core(procstat->core, cntp));
1977 warnx("unknown access method: %d", procstat->type);
1983 procstat_freevmmap(struct procstat *procstat __unused,
1984 struct kinfo_vmentry *vmmap)
1991 procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned int *cntp)
2000 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2002 warnx("can't read proc struct at %p for pid %d",
2003 kp->ki_paddr, kp->ki_pid);
2006 if (proc.p_ucred == NOCRED)
2008 if (!kvm_read_all(kd, (unsigned long)proc.p_ucred, &ucred,
2010 warnx("can't read ucred struct at %p for pid %d",
2011 proc.p_ucred, kp->ki_pid);
2014 len = ucred.cr_ngroups * sizeof(gid_t);
2015 groups = malloc(len);
2016 if (groups == NULL) {
2017 warn("malloc(%zu)", len);
2020 if (!kvm_read_all(kd, (unsigned long)ucred.cr_groups, groups, len)) {
2021 warnx("can't read groups at %p for pid %d",
2022 ucred.cr_groups, kp->ki_pid);
2026 *cntp = ucred.cr_ngroups;
2031 procstat_getgroups_sysctl(pid_t pid, unsigned int *cntp)
2039 mib[2] = KERN_PROC_GROUPS;
2041 len = (sysconf(_SC_NGROUPS_MAX) + 1) * sizeof(gid_t);
2042 groups = malloc(len);
2043 if (groups == NULL) {
2044 warn("malloc(%zu)", len);
2047 if (sysctl(mib, nitems(mib), groups, &len, NULL, 0) == -1) {
2048 warn("sysctl: kern.proc.groups: %d", pid);
2052 *cntp = len / sizeof(gid_t);
2057 procstat_getgroups_core(struct procstat_core *core, unsigned int *cntp)
2062 groups = procstat_core_get(core, PSC_TYPE_GROUPS, NULL, &len);
2065 *cntp = len / sizeof(gid_t);
2070 procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp,
2073 switch(procstat->type) {
2075 return (procstat_getgroups_kvm(procstat->kd, kp, cntp));
2076 case PROCSTAT_SYSCTL:
2077 return (procstat_getgroups_sysctl(kp->ki_pid, cntp));
2079 return (procstat_getgroups_core(procstat->core, cntp));
2081 warnx("unknown access method: %d", procstat->type);
2087 procstat_freegroups(struct procstat *procstat __unused, gid_t *groups)
2094 procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned short *maskp)
2100 if (kp->ki_pd == NULL)
2102 if (!kvm_read_all(kd, (unsigned long)kp->ki_pd, &pd, sizeof(pd))) {
2103 warnx("can't read pwddesc at %p for pid %d", kp->ki_pd,
2107 *maskp = pd.pd_cmask;
2112 procstat_getumask_sysctl(pid_t pid, unsigned short *maskp)
2120 mib[2] = KERN_PROC_UMASK;
2122 len = sizeof(*maskp);
2123 error = sysctl(mib, nitems(mib), maskp, &len, NULL, 0);
2124 if (error != 0 && errno != ESRCH && errno != EPERM)
2125 warn("sysctl: kern.proc.umask: %d", pid);
2130 procstat_getumask_core(struct procstat_core *core, unsigned short *maskp)
2133 unsigned short *buf;
2135 buf = procstat_core_get(core, PSC_TYPE_UMASK, NULL, &len);
2138 if (len < sizeof(*maskp)) {
2148 procstat_getumask(struct procstat *procstat, struct kinfo_proc *kp,
2149 unsigned short *maskp)
2151 switch(procstat->type) {
2153 return (procstat_getumask_kvm(procstat->kd, kp, maskp));
2154 case PROCSTAT_SYSCTL:
2155 return (procstat_getumask_sysctl(kp->ki_pid, maskp));
2157 return (procstat_getumask_core(procstat->core, maskp));
2159 warnx("unknown access method: %d", procstat->type);
2165 procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp, int which,
2166 struct rlimit* rlimit)
2169 unsigned long offset;
2173 assert(which >= 0 && which < RLIM_NLIMITS);
2174 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2176 warnx("can't read proc struct at %p for pid %d",
2177 kp->ki_paddr, kp->ki_pid);
2180 if (proc.p_limit == NULL)
2182 offset = (unsigned long)proc.p_limit + sizeof(struct rlimit) * which;
2183 if (!kvm_read_all(kd, offset, rlimit, sizeof(*rlimit))) {
2184 warnx("can't read rlimit struct at %p for pid %d",
2185 (void *)offset, kp->ki_pid);
2192 procstat_getrlimit_sysctl(pid_t pid, int which, struct rlimit* rlimit)
2198 name[1] = KERN_PROC;
2199 name[2] = KERN_PROC_RLIMIT;
2202 len = sizeof(struct rlimit);
2203 error = sysctl(name, nitems(name), rlimit, &len, NULL, 0);
2204 if (error < 0 && errno != ESRCH) {
2205 warn("sysctl: kern.proc.rlimit: %d", pid);
2208 if (error < 0 || len != sizeof(struct rlimit))
2214 procstat_getrlimit_core(struct procstat_core *core, int which,
2215 struct rlimit* rlimit)
2218 struct rlimit* rlimits;
2220 if (which < 0 || which >= RLIM_NLIMITS) {
2222 warn("getrlimit: which");
2225 rlimits = procstat_core_get(core, PSC_TYPE_RLIMIT, NULL, &len);
2226 if (rlimits == NULL)
2228 if (len < sizeof(struct rlimit) * RLIM_NLIMITS) {
2232 *rlimit = rlimits[which];
2238 procstat_getrlimit(struct procstat *procstat, struct kinfo_proc *kp, int which,
2239 struct rlimit* rlimit)
2241 switch(procstat->type) {
2243 return (procstat_getrlimit_kvm(procstat->kd, kp, which,
2245 case PROCSTAT_SYSCTL:
2246 return (procstat_getrlimit_sysctl(kp->ki_pid, which, rlimit));
2248 return (procstat_getrlimit_core(procstat->core, which, rlimit));
2250 warnx("unknown access method: %d", procstat->type);
2256 procstat_getpathname_sysctl(pid_t pid, char *pathname, size_t maxlen)
2262 name[1] = KERN_PROC;
2263 name[2] = KERN_PROC_PATHNAME;
2266 error = sysctl(name, nitems(name), pathname, &len, NULL, 0);
2267 if (error != 0 && errno != ESRCH)
2268 warn("sysctl: kern.proc.pathname: %d", pid);
2275 procstat_getpathname_core(struct procstat_core *core, char *pathname,
2278 struct kinfo_file *files;
2281 files = kinfo_getfile_core(core, &cnt);
2285 for (i = 0; i < cnt; i++) {
2286 if (files[i].kf_fd != KF_FD_TYPE_TEXT)
2288 strncpy(pathname, files[i].kf_path, maxlen);
2297 procstat_getpathname(struct procstat *procstat, struct kinfo_proc *kp,
2298 char *pathname, size_t maxlen)
2300 switch(procstat->type) {
2302 /* XXX: Return empty string. */
2306 case PROCSTAT_SYSCTL:
2307 return (procstat_getpathname_sysctl(kp->ki_pid, pathname,
2310 return (procstat_getpathname_core(procstat->core, pathname,
2313 warnx("unknown access method: %d", procstat->type);
2319 procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp, int *osrelp)
2325 if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
2327 warnx("can't read proc struct at %p for pid %d",
2328 kp->ki_paddr, kp->ki_pid);
2331 *osrelp = proc.p_osrel;
2336 procstat_getosrel_sysctl(pid_t pid, int *osrelp)
2342 name[1] = KERN_PROC;
2343 name[2] = KERN_PROC_OSREL;
2345 len = sizeof(*osrelp);
2346 error = sysctl(name, nitems(name), osrelp, &len, NULL, 0);
2347 if (error != 0 && errno != ESRCH)
2348 warn("sysctl: kern.proc.osrel: %d", pid);
2353 procstat_getosrel_core(struct procstat_core *core, int *osrelp)
2358 buf = procstat_core_get(core, PSC_TYPE_OSREL, NULL, &len);
2361 if (len < sizeof(*osrelp)) {
2371 procstat_getosrel(struct procstat *procstat, struct kinfo_proc *kp, int *osrelp)
2373 switch(procstat->type) {
2375 return (procstat_getosrel_kvm(procstat->kd, kp, osrelp));
2376 case PROCSTAT_SYSCTL:
2377 return (procstat_getosrel_sysctl(kp->ki_pid, osrelp));
2379 return (procstat_getosrel_core(procstat->core, osrelp));
2381 warnx("unknown access method: %d", procstat->type);
2386 #define PROC_AUXV_MAX 256
2388 #if __ELF_WORD_SIZE == 64
2389 static const char *elf32_sv_names[] = {
2395 is_elf32_sysctl(pid_t pid)
2399 static char sv_name[256];
2402 name[1] = KERN_PROC;
2403 name[2] = KERN_PROC_SV_NAME;
2405 len = sizeof(sv_name);
2406 error = sysctl(name, nitems(name), sv_name, &len, NULL, 0);
2407 if (error != 0 || len == 0)
2409 for (i = 0; i < sizeof(elf32_sv_names) / sizeof(*elf32_sv_names); i++) {
2410 if (strncmp(sv_name, elf32_sv_names[i], sizeof(sv_name)) == 0)
2416 static Elf_Auxinfo *
2417 procstat_getauxv32_sysctl(pid_t pid, unsigned int *cntp)
2420 Elf32_Auxinfo *auxv32;
2423 unsigned int i, count;
2427 name[1] = KERN_PROC;
2428 name[2] = KERN_PROC_AUXV;
2430 len = PROC_AUXV_MAX * sizeof(Elf32_Auxinfo);
2432 auxv32 = malloc(len);
2433 if (auxv32 == NULL) {
2434 warn("malloc(%zu)", len);
2437 if (sysctl(name, nitems(name), auxv32, &len, NULL, 0) == -1) {
2438 if (errno != ESRCH && errno != EPERM)
2439 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
2442 count = len / sizeof(Elf_Auxinfo);
2443 auxv = malloc(count * sizeof(Elf_Auxinfo));
2445 warn("malloc(%zu)", count * sizeof(Elf_Auxinfo));
2448 for (i = 0; i < count; i++) {
2450 * XXX: We expect that values for a_type on a 32-bit platform
2451 * are directly mapped to values on 64-bit one, which is not
2454 auxv[i].a_type = auxv32[i].a_type;
2455 ptr = &auxv32[i].a_un;
2456 auxv[i].a_un.a_val = *((uint32_t *)ptr);
2463 #endif /* __ELF_WORD_SIZE == 64 */
2465 static Elf_Auxinfo *
2466 procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp)
2472 #if __ELF_WORD_SIZE == 64
2473 if (is_elf32_sysctl(pid))
2474 return (procstat_getauxv32_sysctl(pid, cntp));
2477 name[1] = KERN_PROC;
2478 name[2] = KERN_PROC_AUXV;
2480 len = PROC_AUXV_MAX * sizeof(Elf_Auxinfo);
2483 warn("malloc(%zu)", len);
2486 if (sysctl(name, nitems(name), auxv, &len, NULL, 0) == -1) {
2487 if (errno != ESRCH && errno != EPERM)
2488 warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
2492 *cntp = len / sizeof(Elf_Auxinfo);
2496 static Elf_Auxinfo *
2497 procstat_getauxv_core(struct procstat_core *core, unsigned int *cntp)
2502 auxv = procstat_core_get(core, PSC_TYPE_AUXV, NULL, &len);
2505 *cntp = len / sizeof(Elf_Auxinfo);
2510 procstat_getauxv(struct procstat *procstat, struct kinfo_proc *kp,
2513 switch(procstat->type) {
2515 warnx("kvm method is not supported");
2517 case PROCSTAT_SYSCTL:
2518 return (procstat_getauxv_sysctl(kp->ki_pid, cntp));
2520 return (procstat_getauxv_core(procstat->core, cntp));
2522 warnx("unknown access method: %d", procstat->type);
2528 procstat_freeauxv(struct procstat *procstat __unused, Elf_Auxinfo *auxv)
2534 static struct ptrace_lwpinfo *
2535 procstat_getptlwpinfo_core(struct procstat_core *core, unsigned int *cntp)
2538 struct ptrace_lwpinfo *pl;
2542 cnt = procstat_core_note_count(core, PSC_TYPE_PTLWPINFO);
2546 len = cnt * sizeof(*pl);
2547 buf = calloc(1, len);
2548 pl = procstat_core_get(core, PSC_TYPE_PTLWPINFO, buf, &len);
2553 *cntp = len / sizeof(*pl);
2557 struct ptrace_lwpinfo *
2558 procstat_getptlwpinfo(struct procstat *procstat, unsigned int *cntp)
2560 switch (procstat->type) {
2562 warnx("kvm method is not supported");
2564 case PROCSTAT_SYSCTL:
2565 warnx("sysctl method is not supported");
2568 return (procstat_getptlwpinfo_core(procstat->core, cntp));
2570 warnx("unknown access method: %d", procstat->type);
2576 procstat_freeptlwpinfo(struct procstat *procstat __unused,
2577 struct ptrace_lwpinfo *pl)
2582 static struct kinfo_kstack *
2583 procstat_getkstack_sysctl(pid_t pid, int *cntp)
2585 struct kinfo_kstack *kkstp;
2590 name[1] = KERN_PROC;
2591 name[2] = KERN_PROC_KSTACK;
2595 error = sysctl(name, nitems(name), NULL, &len, NULL, 0);
2596 if (error < 0 && errno != ESRCH && errno != EPERM && errno != ENOENT) {
2597 warn("sysctl: kern.proc.kstack: %d", pid);
2600 if (error == -1 && errno == ENOENT) {
2601 warnx("sysctl: kern.proc.kstack unavailable"
2602 " (options DDB or options STACK required in kernel)");
2607 kkstp = malloc(len);
2608 if (kkstp == NULL) {
2609 warn("malloc(%zu)", len);
2612 if (sysctl(name, nitems(name), kkstp, &len, NULL, 0) == -1) {
2613 warn("sysctl: kern.proc.pid: %d", pid);
2617 *cntp = len / sizeof(*kkstp);
2622 struct kinfo_kstack *
2623 procstat_getkstack(struct procstat *procstat, struct kinfo_proc *kp,
2626 switch(procstat->type) {
2628 warnx("kvm method is not supported");
2630 case PROCSTAT_SYSCTL:
2631 return (procstat_getkstack_sysctl(kp->ki_pid, cntp));
2633 warnx("core method is not supported");
2636 warnx("unknown access method: %d", procstat->type);
2642 procstat_freekstack(struct procstat *procstat __unused,
2643 struct kinfo_kstack *kkstp)