handle the case where the process tables grows in between the calls to fetch the size and fetch the table. MFC after: 1 week
2525 lines
59 KiB
C
2525 lines
59 KiB
C
/*-
|
|
* Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org>
|
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* Copyright (c) 1988, 1993
|
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* The Regents of the University of California. All rights reserved.
|
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*
|
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
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* are met:
|
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
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|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
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* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
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* This product includes software developed by the University of
|
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
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* SUCH DAMAGE.
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*/
|
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|
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#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/elf.h>
|
|
#include <sys/time.h>
|
|
#include <sys/resourcevar.h>
|
|
#define _WANT_UCRED
|
|
#include <sys/ucred.h>
|
|
#undef _WANT_UCRED
|
|
#include <sys/proc.h>
|
|
#include <sys/user.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/vnode.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/un.h>
|
|
#include <sys/unpcb.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/tty.h>
|
|
#include <sys/filedesc.h>
|
|
#include <sys/queue.h>
|
|
#define _WANT_FILE
|
|
#include <sys/file.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/ksem.h>
|
|
#include <sys/mman.h>
|
|
#define _KERNEL
|
|
#include <sys/mount.h>
|
|
#include <sys/pipe.h>
|
|
#include <ufs/ufs/quota.h>
|
|
#include <ufs/ufs/inode.h>
|
|
#include <fs/devfs/devfs.h>
|
|
#include <fs/devfs/devfs_int.h>
|
|
#undef _KERNEL
|
|
#include <nfs/nfsproto.h>
|
|
#include <nfsclient/nfs.h>
|
|
#include <nfsclient/nfsnode.h>
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|
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_map.h>
|
|
#include <vm/vm_object.h>
|
|
|
|
#include <net/route.h>
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/in_pcb.h>
|
|
|
|
#include <assert.h>
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <fcntl.h>
|
|
#include <kvm.h>
|
|
#include <libutil.h>
|
|
#include <limits.h>
|
|
#include <paths.h>
|
|
#include <pwd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <netdb.h>
|
|
|
|
#include <libprocstat.h>
|
|
#include "libprocstat_internal.h"
|
|
#include "common_kvm.h"
|
|
#include "core.h"
|
|
|
|
int statfs(const char *, struct statfs *); /* XXX */
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|
|
|
#define PROCSTAT_KVM 1
|
|
#define PROCSTAT_SYSCTL 2
|
|
#define PROCSTAT_CORE 3
|
|
|
|
static char **getargv(struct procstat *procstat, struct kinfo_proc *kp,
|
|
size_t nchr, int env);
|
|
static char *getmnton(kvm_t *kd, struct mount *m);
|
|
static struct kinfo_vmentry * kinfo_getvmmap_core(struct procstat_core *core,
|
|
int *cntp);
|
|
static Elf_Auxinfo *procstat_getauxv_core(struct procstat_core *core,
|
|
unsigned int *cntp);
|
|
static Elf_Auxinfo *procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp);
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|
static struct filestat_list *procstat_getfiles_kvm(
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|
struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
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|
static struct filestat_list *procstat_getfiles_sysctl(
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|
struct procstat *procstat, struct kinfo_proc *kp, int mmapped);
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|
static int procstat_get_pipe_info_sysctl(struct filestat *fst,
|
|
struct pipestat *pipe, char *errbuf);
|
|
static int procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct pipestat *pipe, char *errbuf);
|
|
static int procstat_get_pts_info_sysctl(struct filestat *fst,
|
|
struct ptsstat *pts, char *errbuf);
|
|
static int procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct ptsstat *pts, char *errbuf);
|
|
static int procstat_get_sem_info_sysctl(struct filestat *fst,
|
|
struct semstat *sem, char *errbuf);
|
|
static int procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct semstat *sem, char *errbuf);
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|
static int procstat_get_shm_info_sysctl(struct filestat *fst,
|
|
struct shmstat *shm, char *errbuf);
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|
static int procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
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|
struct shmstat *shm, char *errbuf);
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static int procstat_get_socket_info_sysctl(struct filestat *fst,
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|
struct sockstat *sock, char *errbuf);
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|
static int procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct sockstat *sock, char *errbuf);
|
|
static int to_filestat_flags(int flags);
|
|
static int procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct vnstat *vn, char *errbuf);
|
|
static int procstat_get_vnode_info_sysctl(struct filestat *fst,
|
|
struct vnstat *vn, char *errbuf);
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|
static gid_t *procstat_getgroups_core(struct procstat_core *core,
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unsigned int *count);
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|
static gid_t * procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp,
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|
unsigned int *count);
|
|
static gid_t *procstat_getgroups_sysctl(pid_t pid, unsigned int *count);
|
|
static struct kinfo_kstack *procstat_getkstack_sysctl(pid_t pid,
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|
int *cntp);
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|
static int procstat_getosrel_core(struct procstat_core *core,
|
|
int *osrelp);
|
|
static int procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp,
|
|
int *osrelp);
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|
static int procstat_getosrel_sysctl(pid_t pid, int *osrelp);
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|
static int procstat_getpathname_core(struct procstat_core *core,
|
|
char *pathname, size_t maxlen);
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|
static int procstat_getpathname_sysctl(pid_t pid, char *pathname,
|
|
size_t maxlen);
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|
static int procstat_getrlimit_core(struct procstat_core *core, int which,
|
|
struct rlimit* rlimit);
|
|
static int procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp,
|
|
int which, struct rlimit* rlimit);
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static int procstat_getrlimit_sysctl(pid_t pid, int which,
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struct rlimit* rlimit);
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static int procstat_getumask_core(struct procstat_core *core,
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unsigned short *maskp);
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static int procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp,
|
|
unsigned short *maskp);
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static int procstat_getumask_sysctl(pid_t pid, unsigned short *maskp);
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|
static int vntype2psfsttype(int type);
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void
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procstat_close(struct procstat *procstat)
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|
{
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|
assert(procstat);
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if (procstat->type == PROCSTAT_KVM)
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kvm_close(procstat->kd);
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else if (procstat->type == PROCSTAT_CORE)
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procstat_core_close(procstat->core);
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procstat_freeargv(procstat);
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procstat_freeenvv(procstat);
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free(procstat);
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}
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struct procstat *
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procstat_open_sysctl(void)
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{
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struct procstat *procstat;
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|
procstat = calloc(1, sizeof(*procstat));
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if (procstat == NULL) {
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|
warn("malloc()");
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return (NULL);
|
|
}
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procstat->type = PROCSTAT_SYSCTL;
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return (procstat);
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|
}
|
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|
|
struct procstat *
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procstat_open_kvm(const char *nlistf, const char *memf)
|
|
{
|
|
struct procstat *procstat;
|
|
kvm_t *kd;
|
|
char buf[_POSIX2_LINE_MAX];
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|
procstat = calloc(1, sizeof(*procstat));
|
|
if (procstat == NULL) {
|
|
warn("malloc()");
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|
return (NULL);
|
|
}
|
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kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf);
|
|
if (kd == NULL) {
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warnx("kvm_openfiles(): %s", buf);
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free(procstat);
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|
return (NULL);
|
|
}
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|
procstat->type = PROCSTAT_KVM;
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|
procstat->kd = kd;
|
|
return (procstat);
|
|
}
|
|
|
|
struct procstat *
|
|
procstat_open_core(const char *filename)
|
|
{
|
|
struct procstat *procstat;
|
|
struct procstat_core *core;
|
|
|
|
procstat = calloc(1, sizeof(*procstat));
|
|
if (procstat == NULL) {
|
|
warn("malloc()");
|
|
return (NULL);
|
|
}
|
|
core = procstat_core_open(filename);
|
|
if (core == NULL) {
|
|
free(procstat);
|
|
return (NULL);
|
|
}
|
|
procstat->type = PROCSTAT_CORE;
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|
procstat->core = core;
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|
return (procstat);
|
|
}
|
|
|
|
struct kinfo_proc *
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|
procstat_getprocs(struct procstat *procstat, int what, int arg,
|
|
unsigned int *count)
|
|
{
|
|
struct kinfo_proc *p0, *p;
|
|
size_t len, olen;
|
|
int name[4];
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|
int cnt;
|
|
int error;
|
|
|
|
assert(procstat);
|
|
assert(count);
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p = NULL;
|
|
if (procstat->type == PROCSTAT_KVM) {
|
|
*count = 0;
|
|
p0 = kvm_getprocs(procstat->kd, what, arg, &cnt);
|
|
if (p0 == NULL || cnt <= 0)
|
|
return (NULL);
|
|
*count = cnt;
|
|
len = *count * sizeof(*p);
|
|
p = malloc(len);
|
|
if (p == NULL) {
|
|
warnx("malloc(%zu)", len);
|
|
goto fail;
|
|
}
|
|
bcopy(p0, p, len);
|
|
return (p);
|
|
} else if (procstat->type == PROCSTAT_SYSCTL) {
|
|
len = 0;
|
|
name[0] = CTL_KERN;
|
|
name[1] = KERN_PROC;
|
|
name[2] = what;
|
|
name[3] = arg;
|
|
error = sysctl(name, 4, NULL, &len, NULL, 0);
|
|
if (error < 0 && errno != EPERM) {
|
|
warn("sysctl(kern.proc)");
|
|
goto fail;
|
|
}
|
|
if (len == 0) {
|
|
warnx("no processes?");
|
|
goto fail;
|
|
}
|
|
do {
|
|
len += len / 10;
|
|
p = reallocf(p, len);
|
|
if (p == NULL) {
|
|
warnx("reallocf(%zu)", len);
|
|
goto fail;
|
|
}
|
|
olen = len;
|
|
error = sysctl(name, 4, p, &len, NULL, 0);
|
|
} while (error < 0 && errno == ENOMEM && olen == len);
|
|
if (error < 0 && errno != EPERM) {
|
|
warn("sysctl(kern.proc)");
|
|
goto fail;
|
|
}
|
|
/* Perform simple consistency checks. */
|
|
if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
|
|
warnx("kinfo_proc structure size mismatch (len = %zu)", len);
|
|
goto fail;
|
|
}
|
|
*count = len / sizeof(*p);
|
|
return (p);
|
|
} else if (procstat->type == PROCSTAT_CORE) {
|
|
p = procstat_core_get(procstat->core, PSC_TYPE_PROC, NULL,
|
|
&len);
|
|
if ((len % sizeof(*p)) != 0 || p->ki_structsize != sizeof(*p)) {
|
|
warnx("kinfo_proc structure size mismatch");
|
|
goto fail;
|
|
}
|
|
*count = len / sizeof(*p);
|
|
return (p);
|
|
} else {
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (NULL);
|
|
}
|
|
fail:
|
|
if (p)
|
|
free(p);
|
|
return (NULL);
|
|
}
|
|
|
|
void
|
|
procstat_freeprocs(struct procstat *procstat __unused, struct kinfo_proc *p)
|
|
{
|
|
|
|
if (p != NULL)
|
|
free(p);
|
|
p = NULL;
|
|
}
|
|
|
|
struct filestat_list *
|
|
procstat_getfiles(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
|
|
{
|
|
|
|
switch(procstat->type) {
|
|
case PROCSTAT_KVM:
|
|
return (procstat_getfiles_kvm(procstat, kp, mmapped));
|
|
case PROCSTAT_SYSCTL:
|
|
case PROCSTAT_CORE:
|
|
return (procstat_getfiles_sysctl(procstat, kp, mmapped));
|
|
default:
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (NULL);
|
|
}
|
|
}
|
|
|
|
void
|
|
procstat_freefiles(struct procstat *procstat, struct filestat_list *head)
|
|
{
|
|
struct filestat *fst, *tmp;
|
|
|
|
STAILQ_FOREACH_SAFE(fst, head, next, tmp) {
|
|
if (fst->fs_path != NULL)
|
|
free(fst->fs_path);
|
|
free(fst);
|
|
}
|
|
free(head);
|
|
if (procstat->vmentries != NULL) {
|
|
free(procstat->vmentries);
|
|
procstat->vmentries = NULL;
|
|
}
|
|
if (procstat->files != NULL) {
|
|
free(procstat->files);
|
|
procstat->files = NULL;
|
|
}
|
|
}
|
|
|
|
static struct filestat *
|
|
filestat_new_entry(void *typedep, int type, int fd, int fflags, int uflags,
|
|
int refcount, off_t offset, char *path, cap_rights_t cap_rights)
|
|
{
|
|
struct filestat *entry;
|
|
|
|
entry = calloc(1, sizeof(*entry));
|
|
if (entry == NULL) {
|
|
warn("malloc()");
|
|
return (NULL);
|
|
}
|
|
entry->fs_typedep = typedep;
|
|
entry->fs_fflags = fflags;
|
|
entry->fs_uflags = uflags;
|
|
entry->fs_fd = fd;
|
|
entry->fs_type = type;
|
|
entry->fs_ref_count = refcount;
|
|
entry->fs_offset = offset;
|
|
entry->fs_path = path;
|
|
entry->fs_cap_rights = cap_rights;
|
|
return (entry);
|
|
}
|
|
|
|
static struct vnode *
|
|
getctty(kvm_t *kd, struct kinfo_proc *kp)
|
|
{
|
|
struct pgrp pgrp;
|
|
struct proc proc;
|
|
struct session sess;
|
|
int error;
|
|
|
|
assert(kp);
|
|
error = kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
|
|
sizeof(proc));
|
|
if (error == 0) {
|
|
warnx("can't read proc struct at %p for pid %d",
|
|
kp->ki_paddr, kp->ki_pid);
|
|
return (NULL);
|
|
}
|
|
if (proc.p_pgrp == NULL)
|
|
return (NULL);
|
|
error = kvm_read_all(kd, (unsigned long)proc.p_pgrp, &pgrp,
|
|
sizeof(pgrp));
|
|
if (error == 0) {
|
|
warnx("can't read pgrp struct at %p for pid %d",
|
|
proc.p_pgrp, kp->ki_pid);
|
|
return (NULL);
|
|
}
|
|
error = kvm_read_all(kd, (unsigned long)pgrp.pg_session, &sess,
|
|
sizeof(sess));
|
|
if (error == 0) {
|
|
warnx("can't read session struct at %p for pid %d",
|
|
pgrp.pg_session, kp->ki_pid);
|
|
return (NULL);
|
|
}
|
|
return (sess.s_ttyvp);
|
|
}
|
|
|
|
static struct filestat_list *
|
|
procstat_getfiles_kvm(struct procstat *procstat, struct kinfo_proc *kp, int mmapped)
|
|
{
|
|
struct file file;
|
|
struct filedesc filed;
|
|
struct vm_map_entry vmentry;
|
|
struct vm_object object;
|
|
struct vmspace vmspace;
|
|
vm_map_entry_t entryp;
|
|
vm_map_t map;
|
|
vm_object_t objp;
|
|
struct vnode *vp;
|
|
struct file **ofiles;
|
|
struct filestat *entry;
|
|
struct filestat_list *head;
|
|
kvm_t *kd;
|
|
void *data;
|
|
int i, fflags;
|
|
int prot, type;
|
|
unsigned int nfiles;
|
|
|
|
assert(procstat);
|
|
kd = procstat->kd;
|
|
if (kd == NULL)
|
|
return (NULL);
|
|
if (kp->ki_fd == NULL)
|
|
return (NULL);
|
|
if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &filed,
|
|
sizeof(filed))) {
|
|
warnx("can't read filedesc at %p", (void *)kp->ki_fd);
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Allocate list head.
|
|
*/
|
|
head = malloc(sizeof(*head));
|
|
if (head == NULL)
|
|
return (NULL);
|
|
STAILQ_INIT(head);
|
|
|
|
/* root directory vnode, if one. */
|
|
if (filed.fd_rdir) {
|
|
entry = filestat_new_entry(filed.fd_rdir, PS_FST_TYPE_VNODE, -1,
|
|
PS_FST_FFLAG_READ, PS_FST_UFLAG_RDIR, 0, 0, NULL, 0);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
/* current working directory vnode. */
|
|
if (filed.fd_cdir) {
|
|
entry = filestat_new_entry(filed.fd_cdir, PS_FST_TYPE_VNODE, -1,
|
|
PS_FST_FFLAG_READ, PS_FST_UFLAG_CDIR, 0, 0, NULL, 0);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
/* jail root, if any. */
|
|
if (filed.fd_jdir) {
|
|
entry = filestat_new_entry(filed.fd_jdir, PS_FST_TYPE_VNODE, -1,
|
|
PS_FST_FFLAG_READ, PS_FST_UFLAG_JAIL, 0, 0, NULL, 0);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
/* ktrace vnode, if one */
|
|
if (kp->ki_tracep) {
|
|
entry = filestat_new_entry(kp->ki_tracep, PS_FST_TYPE_VNODE, -1,
|
|
PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
|
|
PS_FST_UFLAG_TRACE, 0, 0, NULL, 0);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
/* text vnode, if one */
|
|
if (kp->ki_textvp) {
|
|
entry = filestat_new_entry(kp->ki_textvp, PS_FST_TYPE_VNODE, -1,
|
|
PS_FST_FFLAG_READ, PS_FST_UFLAG_TEXT, 0, 0, NULL, 0);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
/* Controlling terminal. */
|
|
if ((vp = getctty(kd, kp)) != NULL) {
|
|
entry = filestat_new_entry(vp, PS_FST_TYPE_VNODE, -1,
|
|
PS_FST_FFLAG_READ | PS_FST_FFLAG_WRITE,
|
|
PS_FST_UFLAG_CTTY, 0, 0, NULL, 0);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
|
|
nfiles = filed.fd_lastfile + 1;
|
|
ofiles = malloc(nfiles * sizeof(struct file *));
|
|
if (ofiles == NULL) {
|
|
warn("malloc(%zu)", nfiles * sizeof(struct file *));
|
|
goto do_mmapped;
|
|
}
|
|
if (!kvm_read_all(kd, (unsigned long)filed.fd_ofiles, ofiles,
|
|
nfiles * sizeof(struct file *))) {
|
|
warnx("cannot read file structures at %p",
|
|
(void *)filed.fd_ofiles);
|
|
free(ofiles);
|
|
goto do_mmapped;
|
|
}
|
|
for (i = 0; i <= filed.fd_lastfile; i++) {
|
|
if (ofiles[i] == NULL)
|
|
continue;
|
|
if (!kvm_read_all(kd, (unsigned long)ofiles[i], &file,
|
|
sizeof(struct file))) {
|
|
warnx("can't read file %d at %p", i,
|
|
(void *)ofiles[i]);
|
|
continue;
|
|
}
|
|
switch (file.f_type) {
|
|
case DTYPE_VNODE:
|
|
type = PS_FST_TYPE_VNODE;
|
|
data = file.f_vnode;
|
|
break;
|
|
case DTYPE_SOCKET:
|
|
type = PS_FST_TYPE_SOCKET;
|
|
data = file.f_data;
|
|
break;
|
|
case DTYPE_PIPE:
|
|
type = PS_FST_TYPE_PIPE;
|
|
data = file.f_data;
|
|
break;
|
|
case DTYPE_FIFO:
|
|
type = PS_FST_TYPE_FIFO;
|
|
data = file.f_vnode;
|
|
break;
|
|
#ifdef DTYPE_PTS
|
|
case DTYPE_PTS:
|
|
type = PS_FST_TYPE_PTS;
|
|
data = file.f_data;
|
|
break;
|
|
#endif
|
|
case DTYPE_SEM:
|
|
type = PS_FST_TYPE_SEM;
|
|
data = file.f_data;
|
|
break;
|
|
case DTYPE_SHM:
|
|
type = PS_FST_TYPE_SHM;
|
|
data = file.f_data;
|
|
break;
|
|
default:
|
|
continue;
|
|
}
|
|
/* XXXRW: No capability rights support for kvm yet. */
|
|
entry = filestat_new_entry(data, type, i,
|
|
to_filestat_flags(file.f_flag), 0, 0, 0, NULL, 0);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
free(ofiles);
|
|
|
|
do_mmapped:
|
|
|
|
/*
|
|
* Process mmapped files if requested.
|
|
*/
|
|
if (mmapped) {
|
|
if (!kvm_read_all(kd, (unsigned long)kp->ki_vmspace, &vmspace,
|
|
sizeof(vmspace))) {
|
|
warnx("can't read vmspace at %p",
|
|
(void *)kp->ki_vmspace);
|
|
goto exit;
|
|
}
|
|
map = &vmspace.vm_map;
|
|
|
|
for (entryp = map->header.next;
|
|
entryp != &kp->ki_vmspace->vm_map.header;
|
|
entryp = vmentry.next) {
|
|
if (!kvm_read_all(kd, (unsigned long)entryp, &vmentry,
|
|
sizeof(vmentry))) {
|
|
warnx("can't read vm_map_entry at %p",
|
|
(void *)entryp);
|
|
continue;
|
|
}
|
|
if (vmentry.eflags & MAP_ENTRY_IS_SUB_MAP)
|
|
continue;
|
|
if ((objp = vmentry.object.vm_object) == NULL)
|
|
continue;
|
|
for (; objp; objp = object.backing_object) {
|
|
if (!kvm_read_all(kd, (unsigned long)objp,
|
|
&object, sizeof(object))) {
|
|
warnx("can't read vm_object at %p",
|
|
(void *)objp);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* We want only vnode objects. */
|
|
if (object.type != OBJT_VNODE)
|
|
continue;
|
|
|
|
prot = vmentry.protection;
|
|
fflags = 0;
|
|
if (prot & VM_PROT_READ)
|
|
fflags = PS_FST_FFLAG_READ;
|
|
if ((vmentry.eflags & MAP_ENTRY_COW) == 0 &&
|
|
prot & VM_PROT_WRITE)
|
|
fflags |= PS_FST_FFLAG_WRITE;
|
|
|
|
/*
|
|
* Create filestat entry.
|
|
*/
|
|
entry = filestat_new_entry(object.handle,
|
|
PS_FST_TYPE_VNODE, -1, fflags,
|
|
PS_FST_UFLAG_MMAP, 0, 0, NULL, 0);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
}
|
|
exit:
|
|
return (head);
|
|
}
|
|
|
|
/*
|
|
* kinfo types to filestat translation.
|
|
*/
|
|
static int
|
|
kinfo_type2fst(int kftype)
|
|
{
|
|
static struct {
|
|
int kf_type;
|
|
int fst_type;
|
|
} kftypes2fst[] = {
|
|
{ KF_TYPE_CRYPTO, PS_FST_TYPE_CRYPTO },
|
|
{ KF_TYPE_FIFO, PS_FST_TYPE_FIFO },
|
|
{ KF_TYPE_KQUEUE, PS_FST_TYPE_KQUEUE },
|
|
{ KF_TYPE_MQUEUE, PS_FST_TYPE_MQUEUE },
|
|
{ KF_TYPE_NONE, PS_FST_TYPE_NONE },
|
|
{ KF_TYPE_PIPE, PS_FST_TYPE_PIPE },
|
|
{ KF_TYPE_PTS, PS_FST_TYPE_PTS },
|
|
{ KF_TYPE_SEM, PS_FST_TYPE_SEM },
|
|
{ KF_TYPE_SHM, PS_FST_TYPE_SHM },
|
|
{ KF_TYPE_SOCKET, PS_FST_TYPE_SOCKET },
|
|
{ KF_TYPE_VNODE, PS_FST_TYPE_VNODE },
|
|
{ KF_TYPE_UNKNOWN, PS_FST_TYPE_UNKNOWN }
|
|
};
|
|
#define NKFTYPES (sizeof(kftypes2fst) / sizeof(*kftypes2fst))
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < NKFTYPES; i++)
|
|
if (kftypes2fst[i].kf_type == kftype)
|
|
break;
|
|
if (i == NKFTYPES)
|
|
return (PS_FST_TYPE_UNKNOWN);
|
|
return (kftypes2fst[i].fst_type);
|
|
}
|
|
|
|
/*
|
|
* kinfo flags to filestat translation.
|
|
*/
|
|
static int
|
|
kinfo_fflags2fst(int kfflags)
|
|
{
|
|
static struct {
|
|
int kf_flag;
|
|
int fst_flag;
|
|
} kfflags2fst[] = {
|
|
{ KF_FLAG_APPEND, PS_FST_FFLAG_APPEND },
|
|
{ KF_FLAG_ASYNC, PS_FST_FFLAG_ASYNC },
|
|
{ KF_FLAG_CREAT, PS_FST_FFLAG_CREAT },
|
|
{ KF_FLAG_DIRECT, PS_FST_FFLAG_DIRECT },
|
|
{ KF_FLAG_EXCL, PS_FST_FFLAG_EXCL },
|
|
{ KF_FLAG_EXEC, PS_FST_FFLAG_EXEC },
|
|
{ KF_FLAG_EXLOCK, PS_FST_FFLAG_EXLOCK },
|
|
{ KF_FLAG_FSYNC, PS_FST_FFLAG_SYNC },
|
|
{ KF_FLAG_HASLOCK, PS_FST_FFLAG_HASLOCK },
|
|
{ KF_FLAG_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
|
|
{ KF_FLAG_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
|
|
{ KF_FLAG_READ, PS_FST_FFLAG_READ },
|
|
{ KF_FLAG_SHLOCK, PS_FST_FFLAG_SHLOCK },
|
|
{ KF_FLAG_TRUNC, PS_FST_FFLAG_TRUNC },
|
|
{ KF_FLAG_WRITE, PS_FST_FFLAG_WRITE }
|
|
};
|
|
#define NKFFLAGS (sizeof(kfflags2fst) / sizeof(*kfflags2fst))
|
|
unsigned int i;
|
|
int flags;
|
|
|
|
flags = 0;
|
|
for (i = 0; i < NKFFLAGS; i++)
|
|
if ((kfflags & kfflags2fst[i].kf_flag) != 0)
|
|
flags |= kfflags2fst[i].fst_flag;
|
|
return (flags);
|
|
}
|
|
|
|
static int
|
|
kinfo_uflags2fst(int fd)
|
|
{
|
|
|
|
switch (fd) {
|
|
case KF_FD_TYPE_CTTY:
|
|
return (PS_FST_UFLAG_CTTY);
|
|
case KF_FD_TYPE_CWD:
|
|
return (PS_FST_UFLAG_CDIR);
|
|
case KF_FD_TYPE_JAIL:
|
|
return (PS_FST_UFLAG_JAIL);
|
|
case KF_FD_TYPE_TEXT:
|
|
return (PS_FST_UFLAG_TEXT);
|
|
case KF_FD_TYPE_TRACE:
|
|
return (PS_FST_UFLAG_TRACE);
|
|
case KF_FD_TYPE_ROOT:
|
|
return (PS_FST_UFLAG_RDIR);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static struct kinfo_file *
|
|
kinfo_getfile_core(struct procstat_core *core, int *cntp)
|
|
{
|
|
int cnt;
|
|
size_t len;
|
|
char *buf, *bp, *eb;
|
|
struct kinfo_file *kif, *kp, *kf;
|
|
|
|
buf = procstat_core_get(core, PSC_TYPE_FILES, NULL, &len);
|
|
if (buf == NULL)
|
|
return (NULL);
|
|
/*
|
|
* XXXMG: The code below is just copy&past from libutil.
|
|
* The code duplication can be avoided if libutil
|
|
* is extended to provide something like:
|
|
* struct kinfo_file *kinfo_getfile_from_buf(const char *buf,
|
|
* size_t len, int *cntp);
|
|
*/
|
|
|
|
/* Pass 1: count items */
|
|
cnt = 0;
|
|
bp = buf;
|
|
eb = buf + len;
|
|
while (bp < eb) {
|
|
kf = (struct kinfo_file *)(uintptr_t)bp;
|
|
bp += kf->kf_structsize;
|
|
cnt++;
|
|
}
|
|
|
|
kif = calloc(cnt, sizeof(*kif));
|
|
if (kif == NULL) {
|
|
free(buf);
|
|
return (NULL);
|
|
}
|
|
bp = buf;
|
|
eb = buf + len;
|
|
kp = kif;
|
|
/* Pass 2: unpack */
|
|
while (bp < eb) {
|
|
kf = (struct kinfo_file *)(uintptr_t)bp;
|
|
/* Copy/expand into pre-zeroed buffer */
|
|
memcpy(kp, kf, kf->kf_structsize);
|
|
/* Advance to next packed record */
|
|
bp += kf->kf_structsize;
|
|
/* Set field size to fixed length, advance */
|
|
kp->kf_structsize = sizeof(*kp);
|
|
kp++;
|
|
}
|
|
free(buf);
|
|
*cntp = cnt;
|
|
return (kif); /* Caller must free() return value */
|
|
}
|
|
|
|
static struct filestat_list *
|
|
procstat_getfiles_sysctl(struct procstat *procstat, struct kinfo_proc *kp,
|
|
int mmapped)
|
|
{
|
|
struct kinfo_file *kif, *files;
|
|
struct kinfo_vmentry *kve, *vmentries;
|
|
struct filestat_list *head;
|
|
struct filestat *entry;
|
|
char *path;
|
|
off_t offset;
|
|
int cnt, fd, fflags;
|
|
int i, type, uflags;
|
|
int refcount;
|
|
cap_rights_t cap_rights;
|
|
|
|
assert(kp);
|
|
if (kp->ki_fd == NULL)
|
|
return (NULL);
|
|
switch(procstat->type) {
|
|
case PROCSTAT_SYSCTL:
|
|
files = kinfo_getfile(kp->ki_pid, &cnt);
|
|
break;
|
|
case PROCSTAT_CORE:
|
|
files = kinfo_getfile_core(procstat->core, &cnt);
|
|
break;
|
|
default:
|
|
assert(!"invalid type");
|
|
}
|
|
if (files == NULL && errno != EPERM) {
|
|
warn("kinfo_getfile()");
|
|
return (NULL);
|
|
}
|
|
procstat->files = files;
|
|
|
|
/*
|
|
* Allocate list head.
|
|
*/
|
|
head = malloc(sizeof(*head));
|
|
if (head == NULL)
|
|
return (NULL);
|
|
STAILQ_INIT(head);
|
|
for (i = 0; i < cnt; i++) {
|
|
kif = &files[i];
|
|
|
|
type = kinfo_type2fst(kif->kf_type);
|
|
fd = kif->kf_fd >= 0 ? kif->kf_fd : -1;
|
|
fflags = kinfo_fflags2fst(kif->kf_flags);
|
|
uflags = kinfo_uflags2fst(kif->kf_fd);
|
|
refcount = kif->kf_ref_count;
|
|
offset = kif->kf_offset;
|
|
if (*kif->kf_path != '\0')
|
|
path = strdup(kif->kf_path);
|
|
else
|
|
path = NULL;
|
|
cap_rights = kif->kf_cap_rights;
|
|
|
|
/*
|
|
* Create filestat entry.
|
|
*/
|
|
entry = filestat_new_entry(kif, type, fd, fflags, uflags,
|
|
refcount, offset, path, cap_rights);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
if (mmapped != 0) {
|
|
vmentries = procstat_getvmmap(procstat, kp, &cnt);
|
|
procstat->vmentries = vmentries;
|
|
if (vmentries == NULL || cnt == 0)
|
|
goto fail;
|
|
for (i = 0; i < cnt; i++) {
|
|
kve = &vmentries[i];
|
|
if (kve->kve_type != KVME_TYPE_VNODE)
|
|
continue;
|
|
fflags = 0;
|
|
if (kve->kve_protection & KVME_PROT_READ)
|
|
fflags = PS_FST_FFLAG_READ;
|
|
if ((kve->kve_flags & KVME_FLAG_COW) == 0 &&
|
|
kve->kve_protection & KVME_PROT_WRITE)
|
|
fflags |= PS_FST_FFLAG_WRITE;
|
|
offset = kve->kve_offset;
|
|
refcount = kve->kve_ref_count;
|
|
if (*kve->kve_path != '\0')
|
|
path = strdup(kve->kve_path);
|
|
else
|
|
path = NULL;
|
|
entry = filestat_new_entry(kve, PS_FST_TYPE_VNODE, -1,
|
|
fflags, PS_FST_UFLAG_MMAP, refcount, offset, path,
|
|
0);
|
|
if (entry != NULL)
|
|
STAILQ_INSERT_TAIL(head, entry, next);
|
|
}
|
|
}
|
|
fail:
|
|
return (head);
|
|
}
|
|
|
|
int
|
|
procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst,
|
|
struct pipestat *ps, char *errbuf)
|
|
{
|
|
|
|
assert(ps);
|
|
if (procstat->type == PROCSTAT_KVM) {
|
|
return (procstat_get_pipe_info_kvm(procstat->kd, fst, ps,
|
|
errbuf));
|
|
} else if (procstat->type == PROCSTAT_SYSCTL ||
|
|
procstat->type == PROCSTAT_CORE) {
|
|
return (procstat_get_pipe_info_sysctl(fst, ps, errbuf));
|
|
} else {
|
|
warnx("unknown access method: %d", procstat->type);
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
static int
|
|
procstat_get_pipe_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct pipestat *ps, char *errbuf)
|
|
{
|
|
struct pipe pi;
|
|
void *pipep;
|
|
|
|
assert(kd);
|
|
assert(ps);
|
|
assert(fst);
|
|
bzero(ps, sizeof(*ps));
|
|
pipep = fst->fs_typedep;
|
|
if (pipep == NULL)
|
|
goto fail;
|
|
if (!kvm_read_all(kd, (unsigned long)pipep, &pi, sizeof(struct pipe))) {
|
|
warnx("can't read pipe at %p", (void *)pipep);
|
|
goto fail;
|
|
}
|
|
ps->addr = (uintptr_t)pipep;
|
|
ps->peer = (uintptr_t)pi.pipe_peer;
|
|
ps->buffer_cnt = pi.pipe_buffer.cnt;
|
|
return (0);
|
|
|
|
fail:
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
procstat_get_pipe_info_sysctl(struct filestat *fst, struct pipestat *ps,
|
|
char *errbuf __unused)
|
|
{
|
|
struct kinfo_file *kif;
|
|
|
|
assert(ps);
|
|
assert(fst);
|
|
bzero(ps, sizeof(*ps));
|
|
kif = fst->fs_typedep;
|
|
if (kif == NULL)
|
|
return (1);
|
|
ps->addr = kif->kf_un.kf_pipe.kf_pipe_addr;
|
|
ps->peer = kif->kf_un.kf_pipe.kf_pipe_peer;
|
|
ps->buffer_cnt = kif->kf_un.kf_pipe.kf_pipe_buffer_cnt;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
procstat_get_pts_info(struct procstat *procstat, struct filestat *fst,
|
|
struct ptsstat *pts, char *errbuf)
|
|
{
|
|
|
|
assert(pts);
|
|
if (procstat->type == PROCSTAT_KVM) {
|
|
return (procstat_get_pts_info_kvm(procstat->kd, fst, pts,
|
|
errbuf));
|
|
} else if (procstat->type == PROCSTAT_SYSCTL ||
|
|
procstat->type == PROCSTAT_CORE) {
|
|
return (procstat_get_pts_info_sysctl(fst, pts, errbuf));
|
|
} else {
|
|
warnx("unknown access method: %d", procstat->type);
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
static int
|
|
procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct ptsstat *pts, char *errbuf)
|
|
{
|
|
struct tty tty;
|
|
void *ttyp;
|
|
|
|
assert(kd);
|
|
assert(pts);
|
|
assert(fst);
|
|
bzero(pts, sizeof(*pts));
|
|
ttyp = fst->fs_typedep;
|
|
if (ttyp == NULL)
|
|
goto fail;
|
|
if (!kvm_read_all(kd, (unsigned long)ttyp, &tty, sizeof(struct tty))) {
|
|
warnx("can't read tty at %p", (void *)ttyp);
|
|
goto fail;
|
|
}
|
|
pts->dev = dev2udev(kd, tty.t_dev);
|
|
(void)kdevtoname(kd, tty.t_dev, pts->devname);
|
|
return (0);
|
|
|
|
fail:
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
procstat_get_pts_info_sysctl(struct filestat *fst, struct ptsstat *pts,
|
|
char *errbuf __unused)
|
|
{
|
|
struct kinfo_file *kif;
|
|
|
|
assert(pts);
|
|
assert(fst);
|
|
bzero(pts, sizeof(*pts));
|
|
kif = fst->fs_typedep;
|
|
if (kif == NULL)
|
|
return (0);
|
|
pts->dev = kif->kf_un.kf_pts.kf_pts_dev;
|
|
strlcpy(pts->devname, kif->kf_path, sizeof(pts->devname));
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
procstat_get_sem_info(struct procstat *procstat, struct filestat *fst,
|
|
struct semstat *sem, char *errbuf)
|
|
{
|
|
|
|
assert(sem);
|
|
if (procstat->type == PROCSTAT_KVM) {
|
|
return (procstat_get_sem_info_kvm(procstat->kd, fst, sem,
|
|
errbuf));
|
|
} else if (procstat->type == PROCSTAT_SYSCTL ||
|
|
procstat->type == PROCSTAT_CORE) {
|
|
return (procstat_get_sem_info_sysctl(fst, sem, errbuf));
|
|
} else {
|
|
warnx("unknown access method: %d", procstat->type);
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
static int
|
|
procstat_get_sem_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct semstat *sem, char *errbuf)
|
|
{
|
|
struct ksem ksem;
|
|
void *ksemp;
|
|
char *path;
|
|
int i;
|
|
|
|
assert(kd);
|
|
assert(sem);
|
|
assert(fst);
|
|
bzero(sem, sizeof(*sem));
|
|
ksemp = fst->fs_typedep;
|
|
if (ksemp == NULL)
|
|
goto fail;
|
|
if (!kvm_read_all(kd, (unsigned long)ksemp, &ksem,
|
|
sizeof(struct ksem))) {
|
|
warnx("can't read ksem at %p", (void *)ksemp);
|
|
goto fail;
|
|
}
|
|
sem->mode = S_IFREG | ksem.ks_mode;
|
|
sem->value = ksem.ks_value;
|
|
if (fst->fs_path == NULL && ksem.ks_path != NULL) {
|
|
path = malloc(MAXPATHLEN);
|
|
for (i = 0; i < MAXPATHLEN - 1; i++) {
|
|
if (!kvm_read_all(kd, (unsigned long)ksem.ks_path + i,
|
|
path + i, 1))
|
|
break;
|
|
if (path[i] == '\0')
|
|
break;
|
|
}
|
|
path[i] = '\0';
|
|
if (i == 0)
|
|
free(path);
|
|
else
|
|
fst->fs_path = path;
|
|
}
|
|
return (0);
|
|
|
|
fail:
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
procstat_get_sem_info_sysctl(struct filestat *fst, struct semstat *sem,
|
|
char *errbuf __unused)
|
|
{
|
|
struct kinfo_file *kif;
|
|
|
|
assert(sem);
|
|
assert(fst);
|
|
bzero(sem, sizeof(*sem));
|
|
kif = fst->fs_typedep;
|
|
if (kif == NULL)
|
|
return (0);
|
|
sem->value = kif->kf_un.kf_sem.kf_sem_value;
|
|
sem->mode = kif->kf_un.kf_sem.kf_sem_mode;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
procstat_get_shm_info(struct procstat *procstat, struct filestat *fst,
|
|
struct shmstat *shm, char *errbuf)
|
|
{
|
|
|
|
assert(shm);
|
|
if (procstat->type == PROCSTAT_KVM) {
|
|
return (procstat_get_shm_info_kvm(procstat->kd, fst, shm,
|
|
errbuf));
|
|
} else if (procstat->type == PROCSTAT_SYSCTL ||
|
|
procstat->type == PROCSTAT_CORE) {
|
|
return (procstat_get_shm_info_sysctl(fst, shm, errbuf));
|
|
} else {
|
|
warnx("unknown access method: %d", procstat->type);
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
static int
|
|
procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct shmstat *shm, char *errbuf)
|
|
{
|
|
struct shmfd shmfd;
|
|
void *shmfdp;
|
|
char *path;
|
|
int i;
|
|
|
|
assert(kd);
|
|
assert(shm);
|
|
assert(fst);
|
|
bzero(shm, sizeof(*shm));
|
|
shmfdp = fst->fs_typedep;
|
|
if (shmfdp == NULL)
|
|
goto fail;
|
|
if (!kvm_read_all(kd, (unsigned long)shmfdp, &shmfd,
|
|
sizeof(struct shmfd))) {
|
|
warnx("can't read shmfd at %p", (void *)shmfdp);
|
|
goto fail;
|
|
}
|
|
shm->mode = S_IFREG | shmfd.shm_mode;
|
|
shm->size = shmfd.shm_size;
|
|
if (fst->fs_path == NULL && shmfd.shm_path != NULL) {
|
|
path = malloc(MAXPATHLEN);
|
|
for (i = 0; i < MAXPATHLEN - 1; i++) {
|
|
if (!kvm_read_all(kd, (unsigned long)shmfd.shm_path + i,
|
|
path + i, 1))
|
|
break;
|
|
if (path[i] == '\0')
|
|
break;
|
|
}
|
|
path[i] = '\0';
|
|
if (i == 0)
|
|
free(path);
|
|
else
|
|
fst->fs_path = path;
|
|
}
|
|
return (0);
|
|
|
|
fail:
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
procstat_get_shm_info_sysctl(struct filestat *fst, struct shmstat *shm,
|
|
char *errbuf __unused)
|
|
{
|
|
struct kinfo_file *kif;
|
|
|
|
assert(shm);
|
|
assert(fst);
|
|
bzero(shm, sizeof(*shm));
|
|
kif = fst->fs_typedep;
|
|
if (kif == NULL)
|
|
return (0);
|
|
shm->size = kif->kf_un.kf_file.kf_file_size;
|
|
shm->mode = kif->kf_un.kf_file.kf_file_mode;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst,
|
|
struct vnstat *vn, char *errbuf)
|
|
{
|
|
|
|
assert(vn);
|
|
if (procstat->type == PROCSTAT_KVM) {
|
|
return (procstat_get_vnode_info_kvm(procstat->kd, fst, vn,
|
|
errbuf));
|
|
} else if (procstat->type == PROCSTAT_SYSCTL ||
|
|
procstat->type == PROCSTAT_CORE) {
|
|
return (procstat_get_vnode_info_sysctl(fst, vn, errbuf));
|
|
} else {
|
|
warnx("unknown access method: %d", procstat->type);
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
static int
|
|
procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct vnstat *vn, char *errbuf)
|
|
{
|
|
/* Filesystem specific handlers. */
|
|
#define FSTYPE(fst) {#fst, fst##_filestat}
|
|
struct {
|
|
const char *tag;
|
|
int (*handler)(kvm_t *kd, struct vnode *vp,
|
|
struct vnstat *vn);
|
|
} fstypes[] = {
|
|
FSTYPE(devfs),
|
|
FSTYPE(isofs),
|
|
FSTYPE(msdosfs),
|
|
FSTYPE(nfs),
|
|
FSTYPE(udf),
|
|
FSTYPE(ufs),
|
|
#ifdef LIBPROCSTAT_ZFS
|
|
FSTYPE(zfs),
|
|
#endif
|
|
};
|
|
#define NTYPES (sizeof(fstypes) / sizeof(*fstypes))
|
|
struct vnode vnode;
|
|
char tagstr[12];
|
|
void *vp;
|
|
int error, found;
|
|
unsigned int i;
|
|
|
|
assert(kd);
|
|
assert(vn);
|
|
assert(fst);
|
|
vp = fst->fs_typedep;
|
|
if (vp == NULL)
|
|
goto fail;
|
|
error = kvm_read_all(kd, (unsigned long)vp, &vnode, sizeof(vnode));
|
|
if (error == 0) {
|
|
warnx("can't read vnode at %p", (void *)vp);
|
|
goto fail;
|
|
}
|
|
bzero(vn, sizeof(*vn));
|
|
vn->vn_type = vntype2psfsttype(vnode.v_type);
|
|
if (vnode.v_type == VNON || vnode.v_type == VBAD)
|
|
return (0);
|
|
error = kvm_read_all(kd, (unsigned long)vnode.v_tag, tagstr,
|
|
sizeof(tagstr));
|
|
if (error == 0) {
|
|
warnx("can't read v_tag at %p", (void *)vp);
|
|
goto fail;
|
|
}
|
|
tagstr[sizeof(tagstr) - 1] = '\0';
|
|
|
|
/*
|
|
* Find appropriate handler.
|
|
*/
|
|
for (i = 0, found = 0; i < NTYPES; i++)
|
|
if (!strcmp(fstypes[i].tag, tagstr)) {
|
|
if (fstypes[i].handler(kd, &vnode, vn) != 0) {
|
|
goto fail;
|
|
}
|
|
break;
|
|
}
|
|
if (i == NTYPES) {
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "?(%s)", tagstr);
|
|
return (1);
|
|
}
|
|
vn->vn_mntdir = getmnton(kd, vnode.v_mount);
|
|
if ((vnode.v_type == VBLK || vnode.v_type == VCHR) &&
|
|
vnode.v_rdev != NULL){
|
|
vn->vn_dev = dev2udev(kd, vnode.v_rdev);
|
|
(void)kdevtoname(kd, vnode.v_rdev, vn->vn_devname);
|
|
} else {
|
|
vn->vn_dev = -1;
|
|
}
|
|
return (0);
|
|
|
|
fail:
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* kinfo vnode type to filestat translation.
|
|
*/
|
|
static int
|
|
kinfo_vtype2fst(int kfvtype)
|
|
{
|
|
static struct {
|
|
int kf_vtype;
|
|
int fst_vtype;
|
|
} kfvtypes2fst[] = {
|
|
{ KF_VTYPE_VBAD, PS_FST_VTYPE_VBAD },
|
|
{ KF_VTYPE_VBLK, PS_FST_VTYPE_VBLK },
|
|
{ KF_VTYPE_VCHR, PS_FST_VTYPE_VCHR },
|
|
{ KF_VTYPE_VDIR, PS_FST_VTYPE_VDIR },
|
|
{ KF_VTYPE_VFIFO, PS_FST_VTYPE_VFIFO },
|
|
{ KF_VTYPE_VLNK, PS_FST_VTYPE_VLNK },
|
|
{ KF_VTYPE_VNON, PS_FST_VTYPE_VNON },
|
|
{ KF_VTYPE_VREG, PS_FST_VTYPE_VREG },
|
|
{ KF_VTYPE_VSOCK, PS_FST_VTYPE_VSOCK }
|
|
};
|
|
#define NKFVTYPES (sizeof(kfvtypes2fst) / sizeof(*kfvtypes2fst))
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < NKFVTYPES; i++)
|
|
if (kfvtypes2fst[i].kf_vtype == kfvtype)
|
|
break;
|
|
if (i == NKFVTYPES)
|
|
return (PS_FST_VTYPE_UNKNOWN);
|
|
return (kfvtypes2fst[i].fst_vtype);
|
|
}
|
|
|
|
static int
|
|
procstat_get_vnode_info_sysctl(struct filestat *fst, struct vnstat *vn,
|
|
char *errbuf)
|
|
{
|
|
struct statfs stbuf;
|
|
struct kinfo_file *kif;
|
|
struct kinfo_vmentry *kve;
|
|
uint64_t fileid;
|
|
uint64_t size;
|
|
char *name, *path;
|
|
uint32_t fsid;
|
|
uint16_t mode;
|
|
uint32_t rdev;
|
|
int vntype;
|
|
int status;
|
|
|
|
assert(fst);
|
|
assert(vn);
|
|
bzero(vn, sizeof(*vn));
|
|
if (fst->fs_typedep == NULL)
|
|
return (1);
|
|
if (fst->fs_uflags & PS_FST_UFLAG_MMAP) {
|
|
kve = fst->fs_typedep;
|
|
fileid = kve->kve_vn_fileid;
|
|
fsid = kve->kve_vn_fsid;
|
|
mode = kve->kve_vn_mode;
|
|
path = kve->kve_path;
|
|
rdev = kve->kve_vn_rdev;
|
|
size = kve->kve_vn_size;
|
|
vntype = kinfo_vtype2fst(kve->kve_vn_type);
|
|
status = kve->kve_status;
|
|
} else {
|
|
kif = fst->fs_typedep;
|
|
fileid = kif->kf_un.kf_file.kf_file_fileid;
|
|
fsid = kif->kf_un.kf_file.kf_file_fsid;
|
|
mode = kif->kf_un.kf_file.kf_file_mode;
|
|
path = kif->kf_path;
|
|
rdev = kif->kf_un.kf_file.kf_file_rdev;
|
|
size = kif->kf_un.kf_file.kf_file_size;
|
|
vntype = kinfo_vtype2fst(kif->kf_vnode_type);
|
|
status = kif->kf_status;
|
|
}
|
|
vn->vn_type = vntype;
|
|
if (vntype == PS_FST_VTYPE_VNON || vntype == PS_FST_VTYPE_VBAD)
|
|
return (0);
|
|
if ((status & KF_ATTR_VALID) == 0) {
|
|
if (errbuf != NULL) {
|
|
snprintf(errbuf, _POSIX2_LINE_MAX,
|
|
"? (no info available)");
|
|
}
|
|
return (1);
|
|
}
|
|
if (path && *path) {
|
|
statfs(path, &stbuf);
|
|
vn->vn_mntdir = strdup(stbuf.f_mntonname);
|
|
} else
|
|
vn->vn_mntdir = strdup("-");
|
|
vn->vn_dev = rdev;
|
|
if (vntype == PS_FST_VTYPE_VBLK) {
|
|
name = devname(rdev, S_IFBLK);
|
|
if (name != NULL)
|
|
strlcpy(vn->vn_devname, name,
|
|
sizeof(vn->vn_devname));
|
|
} else if (vntype == PS_FST_VTYPE_VCHR) {
|
|
name = devname(vn->vn_dev, S_IFCHR);
|
|
if (name != NULL)
|
|
strlcpy(vn->vn_devname, name,
|
|
sizeof(vn->vn_devname));
|
|
}
|
|
vn->vn_fsid = fsid;
|
|
vn->vn_fileid = fileid;
|
|
vn->vn_size = size;
|
|
vn->vn_mode = mode;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
procstat_get_socket_info(struct procstat *procstat, struct filestat *fst,
|
|
struct sockstat *sock, char *errbuf)
|
|
{
|
|
|
|
assert(sock);
|
|
if (procstat->type == PROCSTAT_KVM) {
|
|
return (procstat_get_socket_info_kvm(procstat->kd, fst, sock,
|
|
errbuf));
|
|
} else if (procstat->type == PROCSTAT_SYSCTL ||
|
|
procstat->type == PROCSTAT_CORE) {
|
|
return (procstat_get_socket_info_sysctl(fst, sock, errbuf));
|
|
} else {
|
|
warnx("unknown access method: %d", procstat->type);
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
static int
|
|
procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst,
|
|
struct sockstat *sock, char *errbuf)
|
|
{
|
|
struct domain dom;
|
|
struct inpcb inpcb;
|
|
struct protosw proto;
|
|
struct socket s;
|
|
struct unpcb unpcb;
|
|
ssize_t len;
|
|
void *so;
|
|
|
|
assert(kd);
|
|
assert(sock);
|
|
assert(fst);
|
|
bzero(sock, sizeof(*sock));
|
|
so = fst->fs_typedep;
|
|
if (so == NULL)
|
|
goto fail;
|
|
sock->so_addr = (uintptr_t)so;
|
|
/* fill in socket */
|
|
if (!kvm_read_all(kd, (unsigned long)so, &s,
|
|
sizeof(struct socket))) {
|
|
warnx("can't read sock at %p", (void *)so);
|
|
goto fail;
|
|
}
|
|
/* fill in protosw entry */
|
|
if (!kvm_read_all(kd, (unsigned long)s.so_proto, &proto,
|
|
sizeof(struct protosw))) {
|
|
warnx("can't read protosw at %p", (void *)s.so_proto);
|
|
goto fail;
|
|
}
|
|
/* fill in domain */
|
|
if (!kvm_read_all(kd, (unsigned long)proto.pr_domain, &dom,
|
|
sizeof(struct domain))) {
|
|
warnx("can't read domain at %p",
|
|
(void *)proto.pr_domain);
|
|
goto fail;
|
|
}
|
|
if ((len = kvm_read(kd, (unsigned long)dom.dom_name, sock->dname,
|
|
sizeof(sock->dname) - 1)) < 0) {
|
|
warnx("can't read domain name at %p", (void *)dom.dom_name);
|
|
sock->dname[0] = '\0';
|
|
}
|
|
else
|
|
sock->dname[len] = '\0';
|
|
|
|
/*
|
|
* Fill in known data.
|
|
*/
|
|
sock->type = s.so_type;
|
|
sock->proto = proto.pr_protocol;
|
|
sock->dom_family = dom.dom_family;
|
|
sock->so_pcb = (uintptr_t)s.so_pcb;
|
|
|
|
/*
|
|
* Protocol specific data.
|
|
*/
|
|
switch(dom.dom_family) {
|
|
case AF_INET:
|
|
case AF_INET6:
|
|
if (proto.pr_protocol == IPPROTO_TCP) {
|
|
if (s.so_pcb) {
|
|
if (kvm_read(kd, (u_long)s.so_pcb,
|
|
(char *)&inpcb, sizeof(struct inpcb))
|
|
!= sizeof(struct inpcb)) {
|
|
warnx("can't read inpcb at %p",
|
|
(void *)s.so_pcb);
|
|
} else
|
|
sock->inp_ppcb =
|
|
(uintptr_t)inpcb.inp_ppcb;
|
|
}
|
|
}
|
|
break;
|
|
case AF_UNIX:
|
|
if (s.so_pcb) {
|
|
if (kvm_read(kd, (u_long)s.so_pcb, (char *)&unpcb,
|
|
sizeof(struct unpcb)) != sizeof(struct unpcb)){
|
|
warnx("can't read unpcb at %p",
|
|
(void *)s.so_pcb);
|
|
} else if (unpcb.unp_conn) {
|
|
sock->so_rcv_sb_state = s.so_rcv.sb_state;
|
|
sock->so_snd_sb_state = s.so_snd.sb_state;
|
|
sock->unp_conn = (uintptr_t)unpcb.unp_conn;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return (0);
|
|
|
|
fail:
|
|
if (errbuf != NULL)
|
|
snprintf(errbuf, _POSIX2_LINE_MAX, "error");
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
procstat_get_socket_info_sysctl(struct filestat *fst, struct sockstat *sock,
|
|
char *errbuf __unused)
|
|
{
|
|
struct kinfo_file *kif;
|
|
|
|
assert(sock);
|
|
assert(fst);
|
|
bzero(sock, sizeof(*sock));
|
|
kif = fst->fs_typedep;
|
|
if (kif == NULL)
|
|
return (0);
|
|
|
|
/*
|
|
* Fill in known data.
|
|
*/
|
|
sock->type = kif->kf_sock_type;
|
|
sock->proto = kif->kf_sock_protocol;
|
|
sock->dom_family = kif->kf_sock_domain;
|
|
sock->so_pcb = kif->kf_un.kf_sock.kf_sock_pcb;
|
|
strlcpy(sock->dname, kif->kf_path, sizeof(sock->dname));
|
|
bcopy(&kif->kf_sa_local, &sock->sa_local, kif->kf_sa_local.ss_len);
|
|
bcopy(&kif->kf_sa_peer, &sock->sa_peer, kif->kf_sa_peer.ss_len);
|
|
|
|
/*
|
|
* Protocol specific data.
|
|
*/
|
|
switch(sock->dom_family) {
|
|
case AF_INET:
|
|
case AF_INET6:
|
|
if (sock->proto == IPPROTO_TCP)
|
|
sock->inp_ppcb = kif->kf_un.kf_sock.kf_sock_inpcb;
|
|
break;
|
|
case AF_UNIX:
|
|
if (kif->kf_un.kf_sock.kf_sock_unpconn != 0) {
|
|
sock->so_rcv_sb_state =
|
|
kif->kf_un.kf_sock.kf_sock_rcv_sb_state;
|
|
sock->so_snd_sb_state =
|
|
kif->kf_un.kf_sock.kf_sock_snd_sb_state;
|
|
sock->unp_conn =
|
|
kif->kf_un.kf_sock.kf_sock_unpconn;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Descriptor flags to filestat translation.
|
|
*/
|
|
static int
|
|
to_filestat_flags(int flags)
|
|
{
|
|
static struct {
|
|
int flag;
|
|
int fst_flag;
|
|
} fstflags[] = {
|
|
{ FREAD, PS_FST_FFLAG_READ },
|
|
{ FWRITE, PS_FST_FFLAG_WRITE },
|
|
{ O_APPEND, PS_FST_FFLAG_APPEND },
|
|
{ O_ASYNC, PS_FST_FFLAG_ASYNC },
|
|
{ O_CREAT, PS_FST_FFLAG_CREAT },
|
|
{ O_DIRECT, PS_FST_FFLAG_DIRECT },
|
|
{ O_EXCL, PS_FST_FFLAG_EXCL },
|
|
{ O_EXEC, PS_FST_FFLAG_EXEC },
|
|
{ O_EXLOCK, PS_FST_FFLAG_EXLOCK },
|
|
{ O_NOFOLLOW, PS_FST_FFLAG_NOFOLLOW },
|
|
{ O_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
|
|
{ O_SHLOCK, PS_FST_FFLAG_SHLOCK },
|
|
{ O_SYNC, PS_FST_FFLAG_SYNC },
|
|
{ O_TRUNC, PS_FST_FFLAG_TRUNC }
|
|
};
|
|
#define NFSTFLAGS (sizeof(fstflags) / sizeof(*fstflags))
|
|
int fst_flags;
|
|
unsigned int i;
|
|
|
|
fst_flags = 0;
|
|
for (i = 0; i < NFSTFLAGS; i++)
|
|
if (flags & fstflags[i].flag)
|
|
fst_flags |= fstflags[i].fst_flag;
|
|
return (fst_flags);
|
|
}
|
|
|
|
/*
|
|
* Vnode type to filestate translation.
|
|
*/
|
|
static int
|
|
vntype2psfsttype(int type)
|
|
{
|
|
static struct {
|
|
int vtype;
|
|
int fst_vtype;
|
|
} vt2fst[] = {
|
|
{ VBAD, PS_FST_VTYPE_VBAD },
|
|
{ VBLK, PS_FST_VTYPE_VBLK },
|
|
{ VCHR, PS_FST_VTYPE_VCHR },
|
|
{ VDIR, PS_FST_VTYPE_VDIR },
|
|
{ VFIFO, PS_FST_VTYPE_VFIFO },
|
|
{ VLNK, PS_FST_VTYPE_VLNK },
|
|
{ VNON, PS_FST_VTYPE_VNON },
|
|
{ VREG, PS_FST_VTYPE_VREG },
|
|
{ VSOCK, PS_FST_VTYPE_VSOCK }
|
|
};
|
|
#define NVFTYPES (sizeof(vt2fst) / sizeof(*vt2fst))
|
|
unsigned int i, fst_type;
|
|
|
|
fst_type = PS_FST_VTYPE_UNKNOWN;
|
|
for (i = 0; i < NVFTYPES; i++) {
|
|
if (type == vt2fst[i].vtype) {
|
|
fst_type = vt2fst[i].fst_vtype;
|
|
break;
|
|
}
|
|
}
|
|
return (fst_type);
|
|
}
|
|
|
|
static char *
|
|
getmnton(kvm_t *kd, struct mount *m)
|
|
{
|
|
struct mount mnt;
|
|
static struct mtab {
|
|
struct mtab *next;
|
|
struct mount *m;
|
|
char mntonname[MNAMELEN + 1];
|
|
} *mhead = NULL;
|
|
struct mtab *mt;
|
|
|
|
for (mt = mhead; mt != NULL; mt = mt->next)
|
|
if (m == mt->m)
|
|
return (mt->mntonname);
|
|
if (!kvm_read_all(kd, (unsigned long)m, &mnt, sizeof(struct mount))) {
|
|
warnx("can't read mount table at %p", (void *)m);
|
|
return (NULL);
|
|
}
|
|
if ((mt = malloc(sizeof (struct mtab))) == NULL)
|
|
err(1, NULL);
|
|
mt->m = m;
|
|
bcopy(&mnt.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
|
|
mt->mntonname[MNAMELEN] = '\0';
|
|
mt->next = mhead;
|
|
mhead = mt;
|
|
return (mt->mntonname);
|
|
}
|
|
|
|
/*
|
|
* Auxiliary structures and functions to get process environment or
|
|
* command line arguments.
|
|
*/
|
|
struct argvec {
|
|
char *buf;
|
|
size_t bufsize;
|
|
char **argv;
|
|
size_t argc;
|
|
};
|
|
|
|
static struct argvec *
|
|
argvec_alloc(size_t bufsize)
|
|
{
|
|
struct argvec *av;
|
|
|
|
av = malloc(sizeof(*av));
|
|
if (av == NULL)
|
|
return (NULL);
|
|
av->bufsize = bufsize;
|
|
av->buf = malloc(av->bufsize);
|
|
if (av->buf == NULL) {
|
|
free(av);
|
|
return (NULL);
|
|
}
|
|
av->argc = 32;
|
|
av->argv = malloc(sizeof(char *) * av->argc);
|
|
if (av->argv == NULL) {
|
|
free(av->buf);
|
|
free(av);
|
|
return (NULL);
|
|
}
|
|
return av;
|
|
}
|
|
|
|
static void
|
|
argvec_free(struct argvec * av)
|
|
{
|
|
|
|
free(av->argv);
|
|
free(av->buf);
|
|
free(av);
|
|
}
|
|
|
|
static char **
|
|
getargv(struct procstat *procstat, struct kinfo_proc *kp, size_t nchr, int env)
|
|
{
|
|
int error, name[4], argc, i;
|
|
struct argvec *av, **avp;
|
|
enum psc_type type;
|
|
size_t len;
|
|
char *p, **argv;
|
|
|
|
assert(procstat);
|
|
assert(kp);
|
|
if (procstat->type == PROCSTAT_KVM) {
|
|
warnx("can't use kvm access method");
|
|
return (NULL);
|
|
}
|
|
if (procstat->type != PROCSTAT_SYSCTL &&
|
|
procstat->type != PROCSTAT_CORE) {
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (NULL);
|
|
}
|
|
|
|
if (nchr == 0 || nchr > ARG_MAX)
|
|
nchr = ARG_MAX;
|
|
|
|
avp = (struct argvec **)(env ? &procstat->argv : &procstat->envv);
|
|
av = *avp;
|
|
|
|
if (av == NULL)
|
|
{
|
|
av = argvec_alloc(nchr);
|
|
if (av == NULL)
|
|
{
|
|
warn("malloc(%zu)", nchr);
|
|
return (NULL);
|
|
}
|
|
*avp = av;
|
|
} else if (av->bufsize < nchr) {
|
|
av->buf = reallocf(av->buf, nchr);
|
|
if (av->buf == NULL) {
|
|
warn("malloc(%zu)", nchr);
|
|
return (NULL);
|
|
}
|
|
}
|
|
if (procstat->type == PROCSTAT_SYSCTL) {
|
|
name[0] = CTL_KERN;
|
|
name[1] = KERN_PROC;
|
|
name[2] = env ? KERN_PROC_ENV : KERN_PROC_ARGS;
|
|
name[3] = kp->ki_pid;
|
|
len = nchr;
|
|
error = sysctl(name, 4, av->buf, &len, NULL, 0);
|
|
if (error != 0 && errno != ESRCH && errno != EPERM)
|
|
warn("sysctl(kern.proc.%s)", env ? "env" : "args");
|
|
if (error != 0 || len == 0)
|
|
return (NULL);
|
|
} else /* procstat->type == PROCSTAT_CORE */ {
|
|
type = env ? PSC_TYPE_ENVV : PSC_TYPE_ARGV;
|
|
len = nchr;
|
|
if (procstat_core_get(procstat->core, type, av->buf, &len)
|
|
== NULL) {
|
|
return (NULL);
|
|
}
|
|
}
|
|
|
|
argv = av->argv;
|
|
argc = av->argc;
|
|
i = 0;
|
|
for (p = av->buf; p < av->buf + len; p += strlen(p) + 1) {
|
|
argv[i++] = p;
|
|
if (i < argc)
|
|
continue;
|
|
/* Grow argv. */
|
|
argc += argc;
|
|
argv = realloc(argv, sizeof(char *) * argc);
|
|
if (argv == NULL) {
|
|
warn("malloc(%zu)", sizeof(char *) * argc);
|
|
return (NULL);
|
|
}
|
|
av->argv = argv;
|
|
av->argc = argc;
|
|
}
|
|
argv[i] = NULL;
|
|
|
|
return (argv);
|
|
}
|
|
|
|
/*
|
|
* Return process command line arguments.
|
|
*/
|
|
char **
|
|
procstat_getargv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
|
|
{
|
|
|
|
return (getargv(procstat, p, nchr, 0));
|
|
}
|
|
|
|
/*
|
|
* Free the buffer allocated by procstat_getargv().
|
|
*/
|
|
void
|
|
procstat_freeargv(struct procstat *procstat)
|
|
{
|
|
|
|
if (procstat->argv != NULL) {
|
|
argvec_free(procstat->argv);
|
|
procstat->argv = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Return process environment.
|
|
*/
|
|
char **
|
|
procstat_getenvv(struct procstat *procstat, struct kinfo_proc *p, size_t nchr)
|
|
{
|
|
|
|
return (getargv(procstat, p, nchr, 1));
|
|
}
|
|
|
|
/*
|
|
* Free the buffer allocated by procstat_getenvv().
|
|
*/
|
|
void
|
|
procstat_freeenvv(struct procstat *procstat)
|
|
{
|
|
if (procstat->envv != NULL) {
|
|
argvec_free(procstat->envv);
|
|
procstat->envv = NULL;
|
|
}
|
|
}
|
|
|
|
static struct kinfo_vmentry *
|
|
kinfo_getvmmap_core(struct procstat_core *core, int *cntp)
|
|
{
|
|
int cnt;
|
|
size_t len;
|
|
char *buf, *bp, *eb;
|
|
struct kinfo_vmentry *kiv, *kp, *kv;
|
|
|
|
buf = procstat_core_get(core, PSC_TYPE_VMMAP, NULL, &len);
|
|
if (buf == NULL)
|
|
return (NULL);
|
|
|
|
/*
|
|
* XXXMG: The code below is just copy&past from libutil.
|
|
* The code duplication can be avoided if libutil
|
|
* is extended to provide something like:
|
|
* struct kinfo_vmentry *kinfo_getvmmap_from_buf(const char *buf,
|
|
* size_t len, int *cntp);
|
|
*/
|
|
|
|
/* Pass 1: count items */
|
|
cnt = 0;
|
|
bp = buf;
|
|
eb = buf + len;
|
|
while (bp < eb) {
|
|
kv = (struct kinfo_vmentry *)(uintptr_t)bp;
|
|
bp += kv->kve_structsize;
|
|
cnt++;
|
|
}
|
|
|
|
kiv = calloc(cnt, sizeof(*kiv));
|
|
if (kiv == NULL) {
|
|
free(buf);
|
|
return (NULL);
|
|
}
|
|
bp = buf;
|
|
eb = buf + len;
|
|
kp = kiv;
|
|
/* Pass 2: unpack */
|
|
while (bp < eb) {
|
|
kv = (struct kinfo_vmentry *)(uintptr_t)bp;
|
|
/* Copy/expand into pre-zeroed buffer */
|
|
memcpy(kp, kv, kv->kve_structsize);
|
|
/* Advance to next packed record */
|
|
bp += kv->kve_structsize;
|
|
/* Set field size to fixed length, advance */
|
|
kp->kve_structsize = sizeof(*kp);
|
|
kp++;
|
|
}
|
|
free(buf);
|
|
*cntp = cnt;
|
|
return (kiv); /* Caller must free() return value */
|
|
}
|
|
|
|
struct kinfo_vmentry *
|
|
procstat_getvmmap(struct procstat *procstat, struct kinfo_proc *kp,
|
|
unsigned int *cntp)
|
|
{
|
|
|
|
switch(procstat->type) {
|
|
case PROCSTAT_KVM:
|
|
warnx("kvm method is not supported");
|
|
return (NULL);
|
|
case PROCSTAT_SYSCTL:
|
|
return (kinfo_getvmmap(kp->ki_pid, cntp));
|
|
case PROCSTAT_CORE:
|
|
return (kinfo_getvmmap_core(procstat->core, cntp));
|
|
default:
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (NULL);
|
|
}
|
|
}
|
|
|
|
void
|
|
procstat_freevmmap(struct procstat *procstat __unused,
|
|
struct kinfo_vmentry *vmmap)
|
|
{
|
|
|
|
free(vmmap);
|
|
}
|
|
|
|
static gid_t *
|
|
procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned int *cntp)
|
|
{
|
|
struct proc proc;
|
|
struct ucred ucred;
|
|
gid_t *groups;
|
|
size_t len;
|
|
|
|
assert(kd != NULL);
|
|
assert(kp != NULL);
|
|
if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
|
|
sizeof(proc))) {
|
|
warnx("can't read proc struct at %p for pid %d",
|
|
kp->ki_paddr, kp->ki_pid);
|
|
return (NULL);
|
|
}
|
|
if (proc.p_ucred == NOCRED)
|
|
return (NULL);
|
|
if (!kvm_read_all(kd, (unsigned long)proc.p_ucred, &ucred,
|
|
sizeof(ucred))) {
|
|
warnx("can't read ucred struct at %p for pid %d",
|
|
proc.p_ucred, kp->ki_pid);
|
|
return (NULL);
|
|
}
|
|
len = ucred.cr_ngroups * sizeof(gid_t);
|
|
groups = malloc(len);
|
|
if (groups == NULL) {
|
|
warn("malloc(%zu)", len);
|
|
return (NULL);
|
|
}
|
|
if (!kvm_read_all(kd, (unsigned long)ucred.cr_groups, groups, len)) {
|
|
warnx("can't read groups at %p for pid %d",
|
|
ucred.cr_groups, kp->ki_pid);
|
|
free(groups);
|
|
return (NULL);
|
|
}
|
|
*cntp = ucred.cr_ngroups;
|
|
return (groups);
|
|
}
|
|
|
|
static gid_t *
|
|
procstat_getgroups_sysctl(pid_t pid, unsigned int *cntp)
|
|
{
|
|
int mib[4];
|
|
size_t len;
|
|
gid_t *groups;
|
|
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_PROC;
|
|
mib[2] = KERN_PROC_GROUPS;
|
|
mib[3] = pid;
|
|
len = (sysconf(_SC_NGROUPS_MAX) + 1) * sizeof(gid_t);
|
|
groups = malloc(len);
|
|
if (groups == NULL) {
|
|
warn("malloc(%zu)", len);
|
|
return (NULL);
|
|
}
|
|
if (sysctl(mib, 4, groups, &len, NULL, 0) == -1) {
|
|
warn("sysctl: kern.proc.groups: %d", pid);
|
|
free(groups);
|
|
return (NULL);
|
|
}
|
|
*cntp = len / sizeof(gid_t);
|
|
return (groups);
|
|
}
|
|
|
|
static gid_t *
|
|
procstat_getgroups_core(struct procstat_core *core, unsigned int *cntp)
|
|
{
|
|
size_t len;
|
|
gid_t *groups;
|
|
|
|
groups = procstat_core_get(core, PSC_TYPE_GROUPS, NULL, &len);
|
|
if (groups == NULL)
|
|
return (NULL);
|
|
*cntp = len / sizeof(gid_t);
|
|
return (groups);
|
|
}
|
|
|
|
gid_t *
|
|
procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp,
|
|
unsigned int *cntp)
|
|
{
|
|
switch(procstat->type) {
|
|
case PROCSTAT_KVM:
|
|
return (procstat_getgroups_kvm(procstat->kd, kp, cntp));
|
|
case PROCSTAT_SYSCTL:
|
|
return (procstat_getgroups_sysctl(kp->ki_pid, cntp));
|
|
case PROCSTAT_CORE:
|
|
return (procstat_getgroups_core(procstat->core, cntp));
|
|
default:
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (NULL);
|
|
}
|
|
}
|
|
|
|
void
|
|
procstat_freegroups(struct procstat *procstat __unused, gid_t *groups)
|
|
{
|
|
|
|
free(groups);
|
|
}
|
|
|
|
static int
|
|
procstat_getumask_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned short *maskp)
|
|
{
|
|
struct filedesc fd;
|
|
|
|
assert(kd != NULL);
|
|
assert(kp != NULL);
|
|
if (kp->ki_fd == NULL)
|
|
return (-1);
|
|
if (!kvm_read_all(kd, (unsigned long)kp->ki_fd, &fd, sizeof(fd))) {
|
|
warnx("can't read filedesc at %p for pid %d", kp->ki_fd,
|
|
kp->ki_pid);
|
|
return (-1);
|
|
}
|
|
*maskp = fd.fd_cmask;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
procstat_getumask_sysctl(pid_t pid, unsigned short *maskp)
|
|
{
|
|
int error;
|
|
int mib[4];
|
|
size_t len;
|
|
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_PROC;
|
|
mib[2] = KERN_PROC_UMASK;
|
|
mib[3] = pid;
|
|
len = sizeof(*maskp);
|
|
error = sysctl(mib, 4, maskp, &len, NULL, 0);
|
|
if (error != 0 && errno != ESRCH)
|
|
warn("sysctl: kern.proc.umask: %d", pid);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
procstat_getumask_core(struct procstat_core *core, unsigned short *maskp)
|
|
{
|
|
size_t len;
|
|
unsigned short *buf;
|
|
|
|
buf = procstat_core_get(core, PSC_TYPE_UMASK, NULL, &len);
|
|
if (buf == NULL)
|
|
return (-1);
|
|
if (len < sizeof(*maskp)) {
|
|
free(buf);
|
|
return (-1);
|
|
}
|
|
*maskp = *buf;
|
|
free(buf);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
procstat_getumask(struct procstat *procstat, struct kinfo_proc *kp,
|
|
unsigned short *maskp)
|
|
{
|
|
switch(procstat->type) {
|
|
case PROCSTAT_KVM:
|
|
return (procstat_getumask_kvm(procstat->kd, kp, maskp));
|
|
case PROCSTAT_SYSCTL:
|
|
return (procstat_getumask_sysctl(kp->ki_pid, maskp));
|
|
case PROCSTAT_CORE:
|
|
return (procstat_getumask_core(procstat->core, maskp));
|
|
default:
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (-1);
|
|
}
|
|
}
|
|
|
|
static int
|
|
procstat_getrlimit_kvm(kvm_t *kd, struct kinfo_proc *kp, int which,
|
|
struct rlimit* rlimit)
|
|
{
|
|
struct proc proc;
|
|
unsigned long offset;
|
|
|
|
assert(kd != NULL);
|
|
assert(kp != NULL);
|
|
assert(which >= 0 && which < RLIM_NLIMITS);
|
|
if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
|
|
sizeof(proc))) {
|
|
warnx("can't read proc struct at %p for pid %d",
|
|
kp->ki_paddr, kp->ki_pid);
|
|
return (-1);
|
|
}
|
|
if (proc.p_limit == NULL)
|
|
return (-1);
|
|
offset = (unsigned long)proc.p_limit + sizeof(struct rlimit) * which;
|
|
if (!kvm_read_all(kd, offset, rlimit, sizeof(*rlimit))) {
|
|
warnx("can't read rlimit struct at %p for pid %d",
|
|
(void *)offset, kp->ki_pid);
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
procstat_getrlimit_sysctl(pid_t pid, int which, struct rlimit* rlimit)
|
|
{
|
|
int error, name[5];
|
|
size_t len;
|
|
|
|
name[0] = CTL_KERN;
|
|
name[1] = KERN_PROC;
|
|
name[2] = KERN_PROC_RLIMIT;
|
|
name[3] = pid;
|
|
name[4] = which;
|
|
len = sizeof(struct rlimit);
|
|
error = sysctl(name, 5, rlimit, &len, NULL, 0);
|
|
if (error < 0 && errno != ESRCH) {
|
|
warn("sysctl: kern.proc.rlimit: %d", pid);
|
|
return (-1);
|
|
}
|
|
if (error < 0 || len != sizeof(struct rlimit))
|
|
return (-1);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
procstat_getrlimit_core(struct procstat_core *core, int which,
|
|
struct rlimit* rlimit)
|
|
{
|
|
size_t len;
|
|
struct rlimit* rlimits;
|
|
|
|
if (which < 0 || which >= RLIM_NLIMITS) {
|
|
errno = EINVAL;
|
|
warn("getrlimit: which");
|
|
return (-1);
|
|
}
|
|
rlimits = procstat_core_get(core, PSC_TYPE_RLIMIT, NULL, &len);
|
|
if (rlimits == NULL)
|
|
return (-1);
|
|
if (len < sizeof(struct rlimit) * RLIM_NLIMITS) {
|
|
free(rlimits);
|
|
return (-1);
|
|
}
|
|
*rlimit = rlimits[which];
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
procstat_getrlimit(struct procstat *procstat, struct kinfo_proc *kp, int which,
|
|
struct rlimit* rlimit)
|
|
{
|
|
switch(procstat->type) {
|
|
case PROCSTAT_KVM:
|
|
return (procstat_getrlimit_kvm(procstat->kd, kp, which,
|
|
rlimit));
|
|
case PROCSTAT_SYSCTL:
|
|
return (procstat_getrlimit_sysctl(kp->ki_pid, which, rlimit));
|
|
case PROCSTAT_CORE:
|
|
return (procstat_getrlimit_core(procstat->core, which, rlimit));
|
|
default:
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (-1);
|
|
}
|
|
}
|
|
|
|
static int
|
|
procstat_getpathname_sysctl(pid_t pid, char *pathname, size_t maxlen)
|
|
{
|
|
int error, name[4];
|
|
size_t len;
|
|
|
|
name[0] = CTL_KERN;
|
|
name[1] = KERN_PROC;
|
|
name[2] = KERN_PROC_PATHNAME;
|
|
name[3] = pid;
|
|
len = maxlen;
|
|
error = sysctl(name, 4, pathname, &len, NULL, 0);
|
|
if (error != 0 && errno != ESRCH)
|
|
warn("sysctl: kern.proc.pathname: %d", pid);
|
|
if (len == 0)
|
|
pathname[0] = '\0';
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
procstat_getpathname_core(struct procstat_core *core, char *pathname,
|
|
size_t maxlen)
|
|
{
|
|
struct kinfo_file *files;
|
|
int cnt, i, result;
|
|
|
|
files = kinfo_getfile_core(core, &cnt);
|
|
if (files == NULL)
|
|
return (-1);
|
|
result = -1;
|
|
for (i = 0; i < cnt; i++) {
|
|
if (files[i].kf_fd != KF_FD_TYPE_TEXT)
|
|
continue;
|
|
strncpy(pathname, files[i].kf_path, maxlen);
|
|
result = 0;
|
|
break;
|
|
}
|
|
free(files);
|
|
return (result);
|
|
}
|
|
|
|
int
|
|
procstat_getpathname(struct procstat *procstat, struct kinfo_proc *kp,
|
|
char *pathname, size_t maxlen)
|
|
{
|
|
switch(procstat->type) {
|
|
case PROCSTAT_KVM:
|
|
/* XXX: Return empty string. */
|
|
if (maxlen > 0)
|
|
pathname[0] = '\0';
|
|
return (0);
|
|
case PROCSTAT_SYSCTL:
|
|
return (procstat_getpathname_sysctl(kp->ki_pid, pathname,
|
|
maxlen));
|
|
case PROCSTAT_CORE:
|
|
return (procstat_getpathname_core(procstat->core, pathname,
|
|
maxlen));
|
|
default:
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (-1);
|
|
}
|
|
}
|
|
|
|
static int
|
|
procstat_getosrel_kvm(kvm_t *kd, struct kinfo_proc *kp, int *osrelp)
|
|
{
|
|
struct proc proc;
|
|
|
|
assert(kd != NULL);
|
|
assert(kp != NULL);
|
|
if (!kvm_read_all(kd, (unsigned long)kp->ki_paddr, &proc,
|
|
sizeof(proc))) {
|
|
warnx("can't read proc struct at %p for pid %d",
|
|
kp->ki_paddr, kp->ki_pid);
|
|
return (-1);
|
|
}
|
|
*osrelp = proc.p_osrel;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
procstat_getosrel_sysctl(pid_t pid, int *osrelp)
|
|
{
|
|
int error, name[4];
|
|
size_t len;
|
|
|
|
name[0] = CTL_KERN;
|
|
name[1] = KERN_PROC;
|
|
name[2] = KERN_PROC_OSREL;
|
|
name[3] = pid;
|
|
len = sizeof(*osrelp);
|
|
error = sysctl(name, 4, osrelp, &len, NULL, 0);
|
|
if (error != 0 && errno != ESRCH)
|
|
warn("sysctl: kern.proc.osrel: %d", pid);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
procstat_getosrel_core(struct procstat_core *core, int *osrelp)
|
|
{
|
|
size_t len;
|
|
int *buf;
|
|
|
|
buf = procstat_core_get(core, PSC_TYPE_OSREL, NULL, &len);
|
|
if (buf == NULL)
|
|
return (-1);
|
|
if (len < sizeof(*osrelp)) {
|
|
free(buf);
|
|
return (-1);
|
|
}
|
|
*osrelp = *buf;
|
|
free(buf);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
procstat_getosrel(struct procstat *procstat, struct kinfo_proc *kp, int *osrelp)
|
|
{
|
|
switch(procstat->type) {
|
|
case PROCSTAT_KVM:
|
|
return (procstat_getosrel_kvm(procstat->kd, kp, osrelp));
|
|
case PROCSTAT_SYSCTL:
|
|
return (procstat_getosrel_sysctl(kp->ki_pid, osrelp));
|
|
case PROCSTAT_CORE:
|
|
return (procstat_getosrel_core(procstat->core, osrelp));
|
|
default:
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (-1);
|
|
}
|
|
}
|
|
|
|
#define PROC_AUXV_MAX 256
|
|
|
|
#if __ELF_WORD_SIZE == 64
|
|
static const char *elf32_sv_names[] = {
|
|
"Linux ELF32",
|
|
"FreeBSD ELF32",
|
|
};
|
|
|
|
static int
|
|
is_elf32_sysctl(pid_t pid)
|
|
{
|
|
int error, name[4];
|
|
size_t len, i;
|
|
static char sv_name[256];
|
|
|
|
name[0] = CTL_KERN;
|
|
name[1] = KERN_PROC;
|
|
name[2] = KERN_PROC_SV_NAME;
|
|
name[3] = pid;
|
|
len = sizeof(sv_name);
|
|
error = sysctl(name, 4, sv_name, &len, NULL, 0);
|
|
if (error != 0 || len == 0)
|
|
return (0);
|
|
for (i = 0; i < sizeof(elf32_sv_names) / sizeof(*elf32_sv_names); i++) {
|
|
if (strncmp(sv_name, elf32_sv_names[i], sizeof(sv_name)) == 0)
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static Elf_Auxinfo *
|
|
procstat_getauxv32_sysctl(pid_t pid, unsigned int *cntp)
|
|
{
|
|
Elf_Auxinfo *auxv;
|
|
Elf32_Auxinfo *auxv32;
|
|
void *ptr;
|
|
size_t len;
|
|
unsigned int i, count;
|
|
int name[4];
|
|
|
|
name[0] = CTL_KERN;
|
|
name[1] = KERN_PROC;
|
|
name[2] = KERN_PROC_AUXV;
|
|
name[3] = pid;
|
|
len = PROC_AUXV_MAX * sizeof(Elf32_Auxinfo);
|
|
auxv = NULL;
|
|
auxv32 = malloc(len);
|
|
if (auxv32 == NULL) {
|
|
warn("malloc(%zu)", len);
|
|
goto out;
|
|
}
|
|
if (sysctl(name, 4, auxv32, &len, NULL, 0) == -1) {
|
|
if (errno != ESRCH && errno != EPERM)
|
|
warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
|
|
goto out;
|
|
}
|
|
count = len / sizeof(Elf_Auxinfo);
|
|
auxv = malloc(count * sizeof(Elf_Auxinfo));
|
|
if (auxv == NULL) {
|
|
warn("malloc(%zu)", count * sizeof(Elf_Auxinfo));
|
|
goto out;
|
|
}
|
|
for (i = 0; i < count; i++) {
|
|
/*
|
|
* XXX: We expect that values for a_type on a 32-bit platform
|
|
* are directly mapped to values on 64-bit one, which is not
|
|
* necessarily true.
|
|
*/
|
|
auxv[i].a_type = auxv32[i].a_type;
|
|
ptr = &auxv32[i].a_un;
|
|
auxv[i].a_un.a_val = *((uint32_t *)ptr);
|
|
}
|
|
*cntp = count;
|
|
out:
|
|
free(auxv32);
|
|
return (auxv);
|
|
}
|
|
#endif /* __ELF_WORD_SIZE == 64 */
|
|
|
|
static Elf_Auxinfo *
|
|
procstat_getauxv_sysctl(pid_t pid, unsigned int *cntp)
|
|
{
|
|
Elf_Auxinfo *auxv;
|
|
int name[4];
|
|
size_t len;
|
|
|
|
#if __ELF_WORD_SIZE == 64
|
|
if (is_elf32_sysctl(pid))
|
|
return (procstat_getauxv32_sysctl(pid, cntp));
|
|
#endif
|
|
name[0] = CTL_KERN;
|
|
name[1] = KERN_PROC;
|
|
name[2] = KERN_PROC_AUXV;
|
|
name[3] = pid;
|
|
len = PROC_AUXV_MAX * sizeof(Elf_Auxinfo);
|
|
auxv = malloc(len);
|
|
if (auxv == NULL) {
|
|
warn("malloc(%zu)", len);
|
|
return (NULL);
|
|
}
|
|
if (sysctl(name, 4, auxv, &len, NULL, 0) == -1) {
|
|
if (errno != ESRCH && errno != EPERM)
|
|
warn("sysctl: kern.proc.auxv: %d: %d", pid, errno);
|
|
free(auxv);
|
|
return (NULL);
|
|
}
|
|
*cntp = len / sizeof(Elf_Auxinfo);
|
|
return (auxv);
|
|
}
|
|
|
|
static Elf_Auxinfo *
|
|
procstat_getauxv_core(struct procstat_core *core, unsigned int *cntp)
|
|
{
|
|
Elf_Auxinfo *auxv;
|
|
size_t len;
|
|
|
|
auxv = procstat_core_get(core, PSC_TYPE_AUXV, NULL, &len);
|
|
if (auxv == NULL)
|
|
return (NULL);
|
|
*cntp = len / sizeof(Elf_Auxinfo);
|
|
return (auxv);
|
|
}
|
|
|
|
Elf_Auxinfo *
|
|
procstat_getauxv(struct procstat *procstat, struct kinfo_proc *kp,
|
|
unsigned int *cntp)
|
|
{
|
|
switch(procstat->type) {
|
|
case PROCSTAT_KVM:
|
|
warnx("kvm method is not supported");
|
|
return (NULL);
|
|
case PROCSTAT_SYSCTL:
|
|
return (procstat_getauxv_sysctl(kp->ki_pid, cntp));
|
|
case PROCSTAT_CORE:
|
|
return (procstat_getauxv_core(procstat->core, cntp));
|
|
default:
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (NULL);
|
|
}
|
|
}
|
|
|
|
void
|
|
procstat_freeauxv(struct procstat *procstat __unused, Elf_Auxinfo *auxv)
|
|
{
|
|
|
|
free(auxv);
|
|
}
|
|
|
|
static struct kinfo_kstack *
|
|
procstat_getkstack_sysctl(pid_t pid, int *cntp)
|
|
{
|
|
struct kinfo_kstack *kkstp;
|
|
int error, name[4];
|
|
size_t len;
|
|
|
|
name[0] = CTL_KERN;
|
|
name[1] = KERN_PROC;
|
|
name[2] = KERN_PROC_KSTACK;
|
|
name[3] = pid;
|
|
|
|
len = 0;
|
|
error = sysctl(name, 4, NULL, &len, NULL, 0);
|
|
if (error < 0 && errno != ESRCH && errno != EPERM && errno != ENOENT) {
|
|
warn("sysctl: kern.proc.kstack: %d", pid);
|
|
return (NULL);
|
|
}
|
|
if (error == -1 && errno == ENOENT) {
|
|
warnx("sysctl: kern.proc.kstack unavailable"
|
|
" (options DDB or options STACK required in kernel)");
|
|
return (NULL);
|
|
}
|
|
if (error == -1)
|
|
return (NULL);
|
|
kkstp = malloc(len);
|
|
if (kkstp == NULL) {
|
|
warn("malloc(%zu)", len);
|
|
return (NULL);
|
|
}
|
|
if (sysctl(name, 4, kkstp, &len, NULL, 0) == -1) {
|
|
warn("sysctl: kern.proc.pid: %d", pid);
|
|
free(kkstp);
|
|
return (NULL);
|
|
}
|
|
*cntp = len / sizeof(*kkstp);
|
|
|
|
return (kkstp);
|
|
}
|
|
|
|
struct kinfo_kstack *
|
|
procstat_getkstack(struct procstat *procstat, struct kinfo_proc *kp,
|
|
unsigned int *cntp)
|
|
{
|
|
switch(procstat->type) {
|
|
case PROCSTAT_KVM:
|
|
warnx("kvm method is not supported");
|
|
return (NULL);
|
|
case PROCSTAT_SYSCTL:
|
|
return (procstat_getkstack_sysctl(kp->ki_pid, cntp));
|
|
case PROCSTAT_CORE:
|
|
warnx("core method is not supported");
|
|
return (NULL);
|
|
default:
|
|
warnx("unknown access method: %d", procstat->type);
|
|
return (NULL);
|
|
}
|
|
}
|
|
|
|
void
|
|
procstat_freekstack(struct procstat *procstat __unused,
|
|
struct kinfo_kstack *kkstp)
|
|
{
|
|
|
|
free(kkstp);
|
|
}
|