312 lines
8.4 KiB
C
312 lines
8.4 KiB
C
/* $NetBSD: procfs_linux.c,v 1.19 2004/09/20 17:53:08 jdolecek Exp $ */
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/*
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* Copyright (c) 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Frank van der Linden for Wasabi Systems, Inc.
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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
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: procfs_linux.c,v 1.19 2004/09/20 17:53:08 jdolecek Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/time.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/vnode.h>
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#include <sys/exec.h>
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#include <sys/resource.h>
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#include <sys/resourcevar.h>
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#include <sys/signal.h>
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#include <sys/signalvar.h>
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#include <sys/tty.h>
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#include <sys/malloc.h>
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#include <sys/mount.h>
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#include <miscfs/procfs/procfs.h>
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#include <compat/linux/common/linux_exec.h>
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#include <uvm/uvm_extern.h>
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#include <uvm/uvm.h>
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#define PGTOB(p) ((unsigned long)(p) << PAGE_SHIFT)
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#define PGTOKB(p) ((unsigned long)(p) << (PAGE_SHIFT - 10))
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/*
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* Linux compatible /proc/meminfo. Only active when the -o linux
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* mountflag is used.
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*/
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int
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procfs_domeminfo(struct proc *curp, struct proc *p, struct pfsnode *pfs,
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struct uio *uio)
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{
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char buf[512];
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int len;
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len = snprintf(buf, sizeof buf,
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" total: used: free: shared: buffers: cached:\n"
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"Mem: %8lu %8lu %8lu %8lu %8lu %8lu\n"
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"Swap: %8lu %8lu %8lu\n"
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"MemTotal: %8lu kB\n"
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"MemFree: %8lu kB\n"
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"MemShared: %8lu kB\n"
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"Buffers: %8lu kB\n"
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"Cached: %8lu kB\n"
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"SwapTotal: %8lu kB\n"
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"SwapFree: %8lu kB\n",
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PGTOB(uvmexp.npages),
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PGTOB(uvmexp.npages - uvmexp.free),
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PGTOB(uvmexp.free),
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0L,
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PGTOB(uvmexp.filepages),
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PGTOB(uvmexp.anonpages + uvmexp.filepages + uvmexp.execpages),
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PGTOB(uvmexp.swpages),
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PGTOB(uvmexp.swpginuse),
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PGTOB(uvmexp.swpages - uvmexp.swpginuse),
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PGTOKB(uvmexp.npages),
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PGTOKB(uvmexp.free),
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0L,
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PGTOKB(uvmexp.filepages),
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PGTOKB(uvmexp.anonpages + uvmexp.filepages + uvmexp.execpages),
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PGTOKB(uvmexp.swpages),
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PGTOKB(uvmexp.swpages - uvmexp.swpginuse));
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if (len == 0)
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return 0;
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return (uiomove_frombuf(buf, len, uio));
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}
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/*
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* Linux compatible /proc/<pid>/stat. Only active when the -o linux
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* mountflag is used.
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*/
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int
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procfs_do_pid_stat(struct proc *curp, struct lwp *l, struct pfsnode *pfs,
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struct uio *uio)
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{
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char buf[512];
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int len;
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struct proc *p = l->l_proc;
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struct tty *tty = p->p_session->s_ttyp;
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struct rusage *ru = &p->p_stats->p_ru;
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struct rusage *cru = &p->p_stats->p_cru;
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struct vm_map *map = &p->p_vmspace->vm_map;
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struct vm_map_entry *entry;
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unsigned long stext = 0, etext = 0, sstack = 0;
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if (map != &curproc->p_vmspace->vm_map)
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vm_map_lock_read(map);
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for (entry = map->header.next; entry != &map->header;
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entry = entry->next) {
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if (UVM_ET_ISSUBMAP(entry))
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continue;
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/* assume text is the first entry */
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if (stext == etext) {
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stext = entry->start;
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etext = entry->end;
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break;
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}
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}
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#ifdef LINUX_USRSTACK
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if (strcmp(p->p_emul->e_name, "linux") == 0 &&
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LINUX_USRSTACK < USRSTACK)
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sstack = (unsigned long) LINUX_USRSTACK;
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else
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#endif
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sstack = (unsigned long) USRSTACK;
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if (map != &curproc->p_vmspace->vm_map)
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vm_map_unlock_read(map);
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len = snprintf(buf, sizeof(buf),
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"%d (%s) %c %d %d %d %d %d "
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"%u "
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"%lu %lu %lu %lu %lu %lu %lu %lu "
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"%d %d %d "
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"%lu %lu %lu %lu %" PRIu64 " "
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"%lu %lu %lu "
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"%u %u "
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"%u %u %u %u "
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"%lu %lu %lu %d %d\n",
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p->p_pid,
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p->p_comm,
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"0IR3SZD"[(p->p_stat > 6) ? 0 : (int)p->p_stat],
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p->p_pptr->p_pid,
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p->p_pgid,
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p->p_session->s_sid,
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tty ? tty->t_dev : 0,
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(tty && tty->t_pgrp) ? tty->t_pgrp->pg_id : 0,
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p->p_flag,
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ru->ru_minflt,
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cru->ru_minflt,
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ru->ru_majflt,
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cru->ru_majflt,
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ru->ru_utime.tv_sec,
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ru->ru_stime.tv_sec,
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cru->ru_utime.tv_sec,
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cru->ru_stime.tv_sec,
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p->p_nice, /* XXX: priority */
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p->p_nice,
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0,
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p->p_rtime.tv_sec,
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p->p_stats->p_start.tv_sec,
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ru->ru_ixrss + ru->ru_idrss + ru->ru_isrss,
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ru->ru_maxrss,
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p->p_rlimit[RLIMIT_RSS].rlim_cur,
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stext, /* start code */
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etext, /* end code */
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sstack, /* mm start stack */
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0, /* XXX: pc */
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0, /* XXX: sp */
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p->p_sigctx.ps_siglist.__bits[0], /* pending */
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p->p_sigctx.ps_sigmask.__bits[0], /* blocked */
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p->p_sigctx.ps_sigignore.__bits[0], /* ignored */
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p->p_sigctx.ps_sigcatch.__bits[0], /* caught */
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(unsigned long)(intptr_t)l->l_wchan,
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ru->ru_nvcsw,
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ru->ru_nivcsw,
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p->p_exitsig,
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0); /* XXX: processor */
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if (len == 0)
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return 0;
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return (uiomove_frombuf(buf, len, uio));
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}
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int
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procfs_docpuinfo(struct proc *curp, struct proc *p, struct pfsnode *pfs,
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struct uio *uio)
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{
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char buf[512];
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int len;
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len = sizeof buf;
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if (procfs_getcpuinfstr(buf, &len) < 0)
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return EIO;
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if (len == 0)
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return 0;
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return (uiomove_frombuf(buf, len, uio));
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}
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int
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procfs_douptime(struct proc *curp, struct proc *p, struct pfsnode *pfs,
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struct uio *uio)
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{
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char buf[512];
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int len;
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struct timeval runtime;
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u_int64_t idle;
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timersub(&curcpu()->ci_schedstate.spc_runtime, &boottime, &runtime);
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idle = curcpu()->ci_schedstate.spc_cp_time[CP_IDLE];
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len = snprintf(buf, sizeof(buf),
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"%lu.%02lu %" PRIu64 ".%02" PRIu64 "\n",
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runtime.tv_sec, runtime.tv_usec / 10000,
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idle / hz, (((idle % hz) * 100) / hz) % 100);
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if (len == 0)
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return 0;
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return (uiomove_frombuf(buf, len, uio));
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}
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int
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procfs_domounts(struct proc *curp, struct proc *p, struct pfsnode *pfs,
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struct uio *uio)
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{
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char buf[512], *mtab = NULL;
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const char *fsname;
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size_t len, mtabsz = 0;
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struct mount *mp, *nmp;
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struct statvfs *sfs;
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int error = 0;
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simple_lock(&mountlist_slock);
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for (mp = CIRCLEQ_FIRST(&mountlist); mp != (void *)&mountlist;
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mp = nmp) {
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if (vfs_busy(mp, LK_NOWAIT, &mountlist_slock)) {
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nmp = CIRCLEQ_NEXT(mp, mnt_list);
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continue;
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}
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sfs = &mp->mnt_stat;
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/* Linux uses different names for some filesystems */
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fsname = sfs->f_fstypename;
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if (strcmp(fsname, "procfs") == 0)
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fsname = "proc";
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else if (strcmp(fsname, "ext2fs") == 0)
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fsname = "ext2";
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len = snprintf(buf, sizeof(buf), "%s %s %s %s%s%s%s%s%s 0 0\n",
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sfs->f_mntfromname,
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sfs->f_mntonname,
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fsname,
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(mp->mnt_flag & MNT_RDONLY) ? "ro" : "rw",
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(mp->mnt_flag & MNT_NOSUID) ? ",nosuid" : "",
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(mp->mnt_flag & MNT_NOEXEC) ? ",noexec" : "",
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(mp->mnt_flag & MNT_NODEV) ? ",nodev" : "",
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(mp->mnt_flag & MNT_SYNCHRONOUS) ? ",sync" : "",
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(mp->mnt_flag & MNT_NOATIME) ? ",noatime" : ""
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);
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mtab = realloc(mtab, mtabsz + len, M_TEMP, M_WAITOK);
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memcpy(mtab + mtabsz, buf, len);
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mtabsz += len;
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simple_lock(&mountlist_slock);
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nmp = CIRCLEQ_NEXT(mp, mnt_list);
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vfs_unbusy(mp);
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}
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simple_unlock(&mountlist_slock);
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if (mtabsz > 0) {
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error = uiomove_frombuf(mtab, mtabsz, uio);
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free(mtab, M_TEMP);
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}
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return error;
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}
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