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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* $Id$ */
/* Copyright (C) 1998-99 Martin Baulig
This file is part of LibGTop 1.0.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
LibGTop is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
LibGTop is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/procuid.h>
#include <glibtop_suid.h>
static const unsigned long _glibtop_sysdeps_proc_uid =
(1L << GLIBTOP_PROC_UID_UID) + (1L << GLIBTOP_PROC_UID_EUID) +
(1L << GLIBTOP_PROC_UID_EGID) + (1L << GLIBTOP_PROC_UID_PID) +
(1L << GLIBTOP_PROC_UID_PPID) + (1L << GLIBTOP_PROC_UID_PGRP) +
(1L << GLIBTOP_PROC_UID_TPGID) + (1L << GLIBTOP_PROC_UID_PRIORITY) +
(1L << GLIBTOP_PROC_UID_NICE);
static const unsigned long _glibtop_sysdeps_proc_uid_groups =
#if LIBGTOP_VERSION_CODE >= 1001000
#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000)
(1L << GLIBTOP_PROC_UID_NGROUPS) + (1L << GLIBTOP_PROC_UID_GROUPS);
#else
0L;
#endif
#else /* LIBGTOP_VERSION_CODE < 1001000 */
0L;
#endif
/* Init function. */
int
glibtop_init_proc_uid_p (glibtop *server)
{
server->sysdeps.proc_uid = _glibtop_sysdeps_proc_uid |
_glibtop_sysdeps_proc_uid_groups;
return 0;
}
/* Provides detailed information about a process. */
int
glibtop_get_proc_uid_p (glibtop *server, glibtop_proc_uid *buf,
pid_t pid)
{
struct kinfo_proc *pinfo;
int count = 0;
#if LIBGTOP_VERSION_CODE >= 1001000
#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000)
struct ucred ucred;
void *ucred_ptr;
#endif
#endif
glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_PROC_UID), 0);
memset (buf, 0, sizeof (glibtop_proc_uid));
/* It does not work for the swapper task. */
if (pid == 0) return -1;
/* Get the process information */
pinfo = kvm_getprocs (server->_priv->machine.kd,
KERN_PROC_PID, pid, &count);
if ((pinfo == NULL) || (count != 1)) {
glibtop_warn_io_r (server, "kvm_getprocs (%d)", pid);
return -1;
}
buf->uid = pinfo [0].kp_eproc.e_pcred.p_ruid;
buf->euid = pinfo [0].kp_eproc.e_pcred.p_svuid;
buf->gid = pinfo [0].kp_eproc.e_pcred.p_rgid;
buf->egid = pinfo [0].kp_eproc.e_pcred.p_svgid;
buf->ppid = pinfo [0].kp_eproc.e_ppid;
buf->pgrp = pinfo [0].kp_eproc.e_pgid;
buf->tpgid = pinfo [0].kp_eproc.e_tpgid;
buf->nice = pinfo [0].kp_proc.p_nice;
buf->priority = pinfo [0].kp_proc.p_priority;
/* Set the flags for the data we're about to return*/
buf->flags = _glibtop_sysdeps_proc_uid;
/* Use LibGTop conditionals here so we can more easily merge this
* code into the LIBGTOP_STABLE_1_0 branch. */
#if LIBGTOP_VERSION_CODE >= 1001000
/* This probably also works with other versions, but not yet
* tested. Please remove the conditional if this is true. */
#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000)
ucred_ptr = (void *) pinfo [0].kp_eproc.e_pcred.pc_ucred;
if (ucred_ptr) {
if (kvm_read (server->_priv->machine.kd,
(unsigned long) ucred_ptr,
&ucred, sizeof (ucred)) != sizeof (ucred)) {
glibtop_warn_io_r (server, "kvm_read (ucred)");
} else {
int count = (ucred.cr_ngroups < GLIBTOP_MAX_GROUPS) ?
ucred.cr_ngroups : GLIBTOP_MAX_GROUPS;
int i;
for (i = 0; i < count; i++)
buf->groups [i] = ucred.cr_groups [i];
buf->ngroups = count;
buf->flags |= _glibtop_sysdeps_proc_uid_groups;
}
}
#endif
#endif
return 0;
}
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