/* $NetBSD: procfs_linux.c,v 1.90 2024/09/14 01:37:42 pgoyette Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Frank van der Linden for Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: procfs_linux.c,v 1.90 2024/09/14 01:37:42 pgoyette Exp $");
#if defined(_KERNEL_OPT)
#include "opt_sysv.h"
#include "opt_mqueue.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/atomic.h>
#include <sys/time.h>
#include <sys/cpu.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <sys/exec.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/tty.h>
#include <sys/malloc.h>
#include <sys/mount.h>
#include <sys/conf.h>
#include <sys/sysctl.h>
#include <sys/kauth.h>
#include <sys/filedesc.h>
#ifdef SYSVMSG
#include <sys/msg.h>
#endif
#ifdef SYSVSEM
#include <sys/sem.h>
#endif
#ifdef SYSVSHM
#include <sys/shm.h>
#endif
#ifdef MQUEUE
#include <sys/mqueue.h>
#endif
#include <miscfs/procfs/procfs.h>
#include <compat/linux/common/linux_exec.h>
#include <compat/linux32/common/linux32_sysctl.h>
#include <uvm/uvm.h>
#include <uvm/uvm_extern.h>
extern struct devsw_conv *devsw_conv;
extern int max_devsw_convs;
#ifdef MQUEUE
extern u_int mq_open_max;
extern u_int mq_max_msgsize;
extern u_int mq_def_maxmsg;
extern u_int mq_max_maxmsg;
#endif
#define PGTOB(p) ((unsigned long)(p) << PAGE_SHIFT)
#define PGTOKB(p) ((unsigned long)(p) << (PAGE_SHIFT - 10))
#define LBFSZ (8 * 1024)
static void
get_proc_size_info(struct proc *p, struct vm_map *map, unsigned long *stext,
unsigned long *etext, unsigned long *sstack)
{
struct vm_map_entry *entry;
*stext = 0;
*etext = 0;
*sstack = 0;
vm_map_lock_read(map);
for (entry = map->header.next; entry != &map->header;
entry = entry->next) {
if (UVM_ET_ISSUBMAP(entry))
continue;
/* assume text is the first entry */
if (*stext == *etext) {
*stext = entry->start;
*etext = entry->end;
break;
}
}
#if defined(LINUX_USRSTACK32) && defined(USRSTACK32)
if (strcmp(p->p_emul->e_name, "linux32") == 0 &&
LINUX_USRSTACK32 < USRSTACK32)
*sstack = (unsigned long)LINUX_USRSTACK32;
else
#endif
#ifdef LINUX_USRSTACK
if (strcmp(p->p_emul->e_name, "linux") == 0 &&
LINUX_USRSTACK < USRSTACK)
*sstack = (unsigned long)LINUX_USRSTACK;
else
#endif
#ifdef USRSTACK32
if (strstr(p->p_emul->e_name, "32") != NULL)
*sstack = (unsigned long)USRSTACK32;
else
#endif
*sstack = (unsigned long)USRSTACK;
/*
* jdk 1.6 compares low <= addr && addr < high
* if we put addr == high, then the test fails
* so eat one page.
*/
*sstack -= PAGE_SIZE;
vm_map_unlock_read(map);
}
/*
* Linux compatible /proc/meminfo. Only active when the -o linux
* mountflag is used.
*/
int
procfs_domeminfo(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
int len;
int error = 0;
long filepg, anonpg, execpg, freepg;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
/* uvm_availmem() will sync the counters if needed. */
freepg = (long)uvm_availmem(true);
filepg = (long)(cpu_count_get(CPU_COUNT_FILECLEAN) +
cpu_count_get(CPU_COUNT_FILEDIRTY) +
cpu_count_get(CPU_COUNT_FILEUNKNOWN) -
cpu_count_get(CPU_COUNT_EXECPAGES));
anonpg = (long)(cpu_count_get(CPU_COUNT_ANONCLEAN) +
cpu_count_get(CPU_COUNT_ANONDIRTY) +
cpu_count_get(CPU_COUNT_ANONUNKNOWN));
execpg = (long)cpu_count_get(CPU_COUNT_EXECPAGES);
len = snprintf(bf, LBFSZ,
" total: used: free: shared: buffers: cached:\n"
"Mem: %8lu %8lu %8lu %8lu %8lu %8lu\n"
"Swap: %8lu %8lu %8lu\n"
"MemTotal: %8lu kB\n"
"MemFree: %8lu kB\n"
"MemShared: %8lu kB\n"
"Buffers: %8lu kB\n"
"Cached: %8lu kB\n"
"SwapTotal: %8lu kB\n"
"SwapFree: %8lu kB\n",
PGTOB(uvmexp.npages),
PGTOB(uvmexp.npages - freepg),
PGTOB(freepg),
0L,
PGTOB(filepg),
PGTOB(anonpg + filepg + execpg),
PGTOB(uvmexp.swpages),
PGTOB(uvmexp.swpginuse),
PGTOB(uvmexp.swpages - uvmexp.swpginuse),
PGTOKB(uvmexp.npages),
PGTOKB(freepg),
0L,
PGTOKB(freepg),
PGTOKB(anonpg + filepg + execpg),
PGTOKB(uvmexp.swpages),
PGTOKB(uvmexp.swpages - uvmexp.swpginuse));
if (len == 0)
goto out;
error = uiomove_frombuf(bf, len, uio);
out:
free(bf, M_TEMP);
return error;
}
/*
* Linux compatible /proc/devices. Only active when the -o linux
* mountflag is used.
*/
int
procfs_dodevices(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
int offset = 0;
int i, error = ENAMETOOLONG;
/* XXX elad - may need filtering. */
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
offset += snprintf(&bf[offset], LBFSZ - offset, "Character devices:\n");
if (offset >= LBFSZ)
goto out;
mutex_enter(&device_lock);
for (i = 0; i < max_devsw_convs; i++) {
if ((devsw_conv[i].d_name == NULL) ||
(devsw_conv[i].d_cmajor == -1))
continue;
offset += snprintf(&bf[offset], LBFSZ - offset,
"%3d %s\n", devsw_conv[i].d_cmajor, devsw_conv[i].d_name);
if (offset >= LBFSZ) {
mutex_exit(&device_lock);
goto out;
}
}
offset += snprintf(&bf[offset], LBFSZ - offset, "\nBlock devices:\n");
if (offset >= LBFSZ) {
mutex_exit(&device_lock);
goto out;
}
for (i = 0; i < max_devsw_convs; i++) {
if ((devsw_conv[i].d_name == NULL) ||
(devsw_conv[i].d_bmajor == -1))
continue;
offset += snprintf(&bf[offset], LBFSZ - offset,
"%3d %s\n", devsw_conv[i].d_bmajor, devsw_conv[i].d_name);
if (offset >= LBFSZ) {
mutex_exit(&device_lock);
goto out;
}
}
mutex_exit(&device_lock);
error = uiomove_frombuf(bf, offset, uio);
out:
free(bf, M_TEMP);
return error;
}
/*
* Linux compatible /proc/stat. Only active when the -o linux
* mountflag is used.
*/
int
procfs_docpustat(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
int error;
int len;
#if defined(MULTIPROCESSOR)
struct cpu_info *ci;
CPU_INFO_ITERATOR cii;
#endif
int i;
error = ENAMETOOLONG;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
len = snprintf(bf, LBFSZ,
"cpu %" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
curcpu()->ci_schedstate.spc_cp_time[CP_USER],
curcpu()->ci_schedstate.spc_cp_time[CP_NICE],
curcpu()->ci_schedstate.spc_cp_time[CP_SYS] /*+ [CP_INTR]*/,
curcpu()->ci_schedstate.spc_cp_time[CP_IDLE]);
if (len == 0)
goto out;
#if defined(MULTIPROCESSOR)
#define ALLCPUS CPU_INFO_FOREACH(cii, ci)
#define CPUNAME ci
#else
#define ALLCPUS ; i < 1 ;
#define CPUNAME curcpu()
#endif
i = 0;
for (ALLCPUS) {
len += snprintf(&bf[len], LBFSZ - len,
"cpu%d %" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64
"\n", i,
CPUNAME->ci_schedstate.spc_cp_time[CP_USER],
CPUNAME->ci_schedstate.spc_cp_time[CP_NICE],
CPUNAME->ci_schedstate.spc_cp_time[CP_SYS],
CPUNAME->ci_schedstate.spc_cp_time[CP_IDLE]);
if (len >= LBFSZ)
goto out;
i += 1;
}
cpu_count_sync(true);
struct timeval btv;
getmicroboottime(&btv);
len += snprintf(&bf[len], LBFSZ - len,
"disk 0 0 0 0\n"
"page %u %u\n"
"swap %u %u\n"
"intr %"PRId64"\n"
"ctxt %"PRId64"\n"
"btime %"PRId64"\n",
uvmexp.pageins, uvmexp.pdpageouts,
uvmexp.pgswapin, uvmexp.pgswapout,
cpu_count_get(CPU_COUNT_NINTR),
cpu_count_get(CPU_COUNT_NSWTCH),
btv.tv_sec);
if (len >= LBFSZ)
goto out;
error = uiomove_frombuf(bf, len, uio);
out:
free(bf, M_TEMP);
return error;
}
/*
* Linux compatible /proc/loadavg. Only active when the -o linux
* mountflag is used.
*/
int
procfs_doloadavg(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
int error;
int len;
error = ENAMETOOLONG;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
averunnable.fscale = FSCALE;
len = snprintf(bf, LBFSZ,
"%d.%02d %d.%02d %d.%02d %d/%d %d\n",
(int)(averunnable.ldavg[0] / averunnable.fscale),
(int)(averunnable.ldavg[0] * 100 / averunnable.fscale % 100),
(int)(averunnable.ldavg[1] / averunnable.fscale),
(int)(averunnable.ldavg[1] * 100 / averunnable.fscale % 100),
(int)(averunnable.ldavg[2] / averunnable.fscale),
(int)(averunnable.ldavg[2] * 100 / averunnable.fscale % 100),
1, /* number of ONPROC processes */
atomic_load_relaxed(&nprocs),
30000); /* last pid */
if (len == 0)
goto out;
error = uiomove_frombuf(bf, len, uio);
out:
free(bf, M_TEMP);
return error;
}
/*
* Linux compatible /proc/<pid>/statm. Only active when the -o linux
* mountflag is used.
*/
int
procfs_do_pid_statm(struct lwp *curl, struct lwp *l,
struct pfsnode *pfs, struct uio *uio)
{
struct vmspace *vm;
struct proc *p = l->l_proc;
char *bf;
int error;
int len;
struct kinfo_proc2 ki;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
/* XXX - we use values from vmspace, since dsl says that ru figures
are always 0 except for zombies. See kvm_proc.c::kvm_getproc2() */
if ((error = proc_vmspace_getref(p, &vm)) != 0) {
goto out;
}
mutex_enter(&proc_lock);
mutex_enter(p->p_lock);
/* retrieve RSS size */
memset(&ki, 0, sizeof(ki));
fill_kproc2(p, &ki, false, false);
mutex_exit(p->p_lock);
mutex_exit(&proc_lock);
uvmspace_free(vm);
len = snprintf(bf, LBFSZ,
"%lu %lu %lu %lu %lu %lu %lu\n",
(unsigned long)(ki.p_vm_msize), /* size */
(unsigned long)(ki.p_vm_rssize),/* resident */
(unsigned long)(ki.p_uru_ixrss),/* shared */
(unsigned long)(ki.p_vm_tsize), /* text */
(unsigned long) 0, /* library (unused) */
(unsigned long)(ki.p_vm_dsize + ki.p_vm_ssize), /* data+stack */
(unsigned long) 0); /* dirty */
if (len == 0)
goto out;
error = uiomove_frombuf(bf, len, uio);
out:
free(bf, M_TEMP);
return error;
}
#define UTIME2TICKS(s,u) (((uint64_t)(s) * 1000000 + (u)) / 10000)
/*
* Linux compatible /proc/<pid>/stat. Only active when the -o linux
* mountflag is used.
*/
int
procfs_do_pid_stat(struct lwp *curl, struct lwp *l,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
struct proc *p = l->l_proc;
int len;
struct rusage *cru = &p->p_stats->p_cru;
unsigned long stext = 0, etext = 0, sstack = 0;
struct timeval rt;
struct vmspace *vm;
struct kinfo_proc2 ki;
int error;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
if ((error = proc_vmspace_getref(p, &vm)) != 0) {
goto out;
}
get_proc_size_info(p, &vm->vm_map, &stext, &etext, &sstack);
mutex_enter(&proc_lock);
mutex_enter(p->p_lock);
memset(&ki, 0, sizeof(ki));
fill_kproc2(p, &ki, false, false);
calcru(p, NULL, NULL, NULL, &rt);
len = snprintf(bf, LBFSZ,
"%d (%s) %c %d %d %d %u %d "
"%u "
"%"PRIu64" %lu %"PRIu64" %lu %"PRIu64" %"PRIu64" %"PRIu64" %"PRIu64" "
"%d %d %"PRIu64" "
"%lld %"PRIu64" %"PRId64" %lu %"PRIu64" "
"%lu %lu %lu "
"%u %u "
"%u %u %u %u "
"%"PRIu64" %"PRIu64" %"PRIu64" %d %"PRIu64"\n",
ki.p_pid, /* 1 pid */
ki.p_comm, /* 2 tcomm */
"0RRSTZXR8"[(ki.p_stat > 8) ? 0 : (int)ki.p_stat], /* 3 state */
ki.p_ppid, /* 4 ppid */
ki.p__pgid, /* 5 pgrp */
ki.p_sid, /* 6 sid */
(ki.p_tdev != (uint32_t)NODEV) ? ki.p_tdev : 0, /* 7 tty_nr */
ki.p_tpgid, /* 8 tty_pgrp */
ki.p_flag, /* 9 flags */
ki.p_uru_minflt, /* 10 min_flt */
cru->ru_minflt,
ki.p_uru_majflt, /* 12 maj_flt */
cru->ru_majflt,
UTIME2TICKS(ki.p_uutime_sec, ki.p_uutime_usec), /* 14 utime */
UTIME2TICKS(ki.p_ustime_sec, ki.p_ustime_usec), /* 15 stime */
UTIME2TICKS(cru->ru_utime.tv_sec, cru->ru_utime.tv_usec), /* 16 cutime */
UTIME2TICKS(cru->ru_stime.tv_sec, cru->ru_stime.tv_usec), /* 17 cstime */
ki.p_priority, /* XXX: 18 priority */
ki.p_nice - NZERO, /* 19 nice */
ki.p_nlwps, /* 20 num_threads */
(long long)rt.tv_sec,
UTIME2TICKS(ki.p_ustart_sec, ki.p_ustart_usec), /* 22 start_time */
ki.p_vm_msize, /* 23 vsize */
PGTOKB(ki.p_vm_rssize), /* 24 rss */
p->p_rlimit[RLIMIT_RSS].rlim_cur, /* 25 rsslim */
stext, /* 26 start_code */
etext, /* 27 end_code */
sstack, /* 28 start_stack */
0, /* XXX: 29 esp */
0, /* XXX: 30 eip */
ki.p_siglist.__bits[0], /* XXX: 31 pending */
0, /* XXX: 32 blocked */
ki.p_sigignore.__bits[0], /* 33 sigign */
ki.p_sigcatch.__bits[0], /* 34 sigcatch */
ki.p_wchan, /* 35 wchan */
ki.p_uru_nvcsw,
ki.p_uru_nivcsw,
ki.p_exitsig, /* 38 exit_signal */
ki.p_cpuid); /* 39 task_cpu */
mutex_exit(p->p_lock);
mutex_exit(&proc_lock);
uvmspace_free(vm);
if (len == 0)
goto out;
error = uiomove_frombuf(bf, len, uio);
out:
free(bf, M_TEMP);
return error;
}
int
procfs_docpuinfo(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
size_t len = LBFSZ;
char *bf = NULL;
int error;
do {
if (bf)
free(bf, M_TEMP);
bf = malloc(len, M_TEMP, M_WAITOK);
} while (procfs_getcpuinfstr(bf, &len) < 0);
if (len == 0) {
error = 0;
goto done;
}
error = uiomove_frombuf(bf, len, uio);
done:
free(bf, M_TEMP);
return error;
}
int
procfs_douptime(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
int len;
struct timeval runtime;
u_int64_t idle;
int error = 0;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
microuptime(&runtime);
idle = curcpu()->ci_schedstate.spc_cp_time[CP_IDLE];
len = snprintf(bf, LBFSZ,
"%lld.%02lu %" PRIu64 ".%02" PRIu64 "\n",
(long long)runtime.tv_sec, (long)runtime.tv_usec / 10000,
idle / hz, (((idle % hz) * 100) / hz) % 100);
if (len == 0)
goto out;
error = uiomove_frombuf(bf, len, uio);
out:
free(bf, M_TEMP);
return error;
}
static int
procfs_format_sfs(char **mtab, size_t *mlen, char *buf, size_t blen,
const struct statvfs *sfs, struct lwp *curl, int suser)
{
const char *fsname;
/* Linux uses different names for some filesystems */
fsname = sfs->f_fstypename;
if (strcmp(fsname, "procfs") == 0)
fsname = "proc";
else if (strcmp(fsname, "ext2fs") == 0)
fsname = "ext2";
blen = snprintf(buf, blen, "%s %s %s %s%s%s%s%s%s 0 0\n",
sfs->f_mntfromname, sfs->f_mntonname, fsname,
(sfs->f_flag & ST_RDONLY) ? "ro" : "rw",
(sfs->f_flag & ST_NOSUID) ? ",nosuid" : "",
(sfs->f_flag & ST_NOEXEC) ? ",noexec" : "",
(sfs->f_flag & ST_NODEV) ? ",nodev" : "",
(sfs->f_flag & ST_SYNCHRONOUS) ? ",sync" : "",
(sfs->f_flag & ST_NOATIME) ? ",noatime" : "");
*mtab = realloc(*mtab, *mlen + blen, M_TEMP, M_WAITOK);
memcpy(*mtab + *mlen, buf, blen);
*mlen += blen;
return sfs->f_mntonname[0] == '/' && sfs->f_mntonname[1] == '\0';
}
int
procfs_domounts(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf, *mtab = NULL;
size_t mtabsz = 0;
mount_iterator_t *iter;
struct mount *mp;
int error = 0, root = 0;
struct cwdinfo *cwdi = curl->l_proc->p_cwdi;
struct statvfs *sfs;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
sfs = malloc(sizeof(*sfs), M_TEMP, M_WAITOK);
mountlist_iterator_init(&iter);
while ((mp = mountlist_iterator_next(iter)) != NULL) {
if ((error = dostatvfs(mp, sfs, curl, MNT_WAIT, 0)) == 0)
root |= procfs_format_sfs(&mtab, &mtabsz, bf, LBFSZ,
sfs, curl, 0);
}
mountlist_iterator_destroy(iter);
free(sfs, M_TEMP);
/*
* If we are inside a chroot that is not itself a mount point,
* fake a root entry.
*/
if (!root && cwdi->cwdi_rdir)
(void)procfs_format_sfs(&mtab, &mtabsz, bf, LBFSZ,
&cwdi->cwdi_rdir->v_mount->mnt_stat, curl, 1);
free(bf, M_TEMP);
if (mtabsz > 0) {
error = uiomove_frombuf(mtab, mtabsz, uio);
free(mtab, M_TEMP);
}
return error;
}
/*
* Linux compatible /proc/version. Only active when the -o linux
* mountflag is used.
*/
int
procfs_doversion(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
char lostype[20], losrelease[20], lversion[80];
const char *postype, *posrelease, *pversion;
const char *emulname = curlwp->l_proc->p_emul->e_name;
int len;
int error = 0;
int nm[4];
size_t buflen;
CTASSERT(EMUL_LINUX_KERN_OSTYPE == EMUL_LINUX32_KERN_OSTYPE);
CTASSERT(EMUL_LINUX_KERN_OSRELEASE == EMUL_LINUX32_KERN_OSRELEASE);
CTASSERT(EMUL_LINUX_KERN_VERSION == EMUL_LINUX32_KERN_VERSION);
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
sysctl_lock(false);
if (strncmp(emulname, "linux", 5) == 0) {
/*
* Lookup the emulation ostype, osrelease, and version.
* Since compat_linux and compat_linux32 can be built as
* modules, we use sysctl to obtain the values instead of
* using the symbols directly.
*/
if (strcmp(emulname, "linux32") == 0) {
nm[0] = CTL_EMUL;
nm[1] = EMUL_LINUX32;
nm[2] = EMUL_LINUX32_KERN;
} else {
nm[0] = CTL_EMUL;
nm[1] = EMUL_LINUX;
nm[2] = EMUL_LINUX_KERN;
}
nm[3] = EMUL_LINUX_KERN_OSTYPE;
buflen = sizeof(lostype);
error = sysctl_dispatch(nm, __arraycount(nm),
lostype, &buflen,
NULL, 0, NULL, NULL, NULL);
if (error)
goto out;
nm[3] = EMUL_LINUX_KERN_OSRELEASE;
buflen = sizeof(losrelease);
error = sysctl_dispatch(nm, __arraycount(nm),
losrelease, &buflen,
NULL, 0, NULL, NULL, NULL);
if (error)
goto out;
nm[3] = EMUL_LINUX_KERN_VERSION;
buflen = sizeof(lversion);
error = sysctl_dispatch(nm, __arraycount(nm),
lversion, &buflen,
NULL, 0, NULL, NULL, NULL);
if (error)
goto out;
postype = lostype;
posrelease = losrelease;
pversion = lversion;
} else {
postype = ostype;
posrelease = osrelease;
strlcpy(lversion, version, sizeof(lversion));
if (strchr(lversion, '\n'))
*strchr(lversion, '\n') = '\0';
pversion = lversion;
}
len = snprintf(bf, LBFSZ,
"%s version %s (%s@localhost) (gcc version %s) %s\n",
postype, posrelease, emulname,
#ifdef __VERSION__
__VERSION__,
#else
"unknown",
#endif
pversion);
if (len == 0)
goto out;
error = uiomove_frombuf(bf, len, uio);
out:
free(bf, M_TEMP);
sysctl_unlock();
return error;
}
int
procfs_dosysvipc_msg(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
int offset = 0;
int error = EFBIG;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
offset += snprintf(bf, LBFSZ,
"%10s %10s %4s %10s %10s %5s %5s %5s %5s %5s %5s %10s %10s %10s\n",
"key", "msqid", "perms", "cbytes", "qnum", "lspid", "lrpid",
"uid", "gid", "cuid", "cgid", "stime", "rtime", "ctime");
if (offset >= LBFSZ)
goto out;
#ifdef SYSVMSG
for (int id = 0; id < msginfo.msgmni; id++)
if (msqs[id].msq_u.msg_qbytes > 0) {
offset += snprintf(&bf[offset], LBFSZ - offset,
"%10d %10d %4o %10zu %10lu %5u %5u %5u %5u %5u %5u %10lld %10lld %10lld\n",
(int) msqs[id].msq_u.msg_perm._key,
IXSEQ_TO_IPCID(id, msqs[id].msq_u.msg_perm),
msqs[id].msq_u.msg_perm.mode,
msqs[id].msq_u._msg_cbytes,
msqs[id].msq_u.msg_qnum,
msqs[id].msq_u.msg_lspid,
msqs[id].msq_u.msg_lrpid,
msqs[id].msq_u.msg_perm.uid,
msqs[id].msq_u.msg_perm.gid,
msqs[id].msq_u.msg_perm.cuid,
msqs[id].msq_u.msg_perm.cgid,
(long long)msqs[id].msq_u.msg_stime,
(long long)msqs[id].msq_u.msg_rtime,
(long long)msqs[id].msq_u.msg_ctime);
if (offset >= LBFSZ)
goto out;
}
#endif
error = uiomove_frombuf(bf, offset, uio);
out:
free(bf, M_TEMP);
return error;
}
int
procfs_dosysvipc_sem(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
int offset = 0;
int error = EFBIG;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
offset += snprintf(bf, LBFSZ,
"%10s %10s %4s %10s %5s %5s %5s %5s %10s %10s\n",
"key", "semid", "perms", "nsems", "uid", "gid", "cuid", "cgid",
"otime", "ctime");
if (offset >= LBFSZ)
goto out;
#ifdef SYSVSEM
for (int id = 0; id < seminfo.semmni; id++)
if ((sema[id].sem_perm.mode & SEM_ALLOC) != 0) {
offset += snprintf(&bf[offset], LBFSZ - offset,
"%10d %10d %4o %10u %5u %5u %5u %5u %10lld %10lld\n",
(int) sema[id].sem_perm._key,
IXSEQ_TO_IPCID(id, sema[id].sem_perm),
sema[id].sem_perm.mode,
sema[id].sem_nsems,
sema[id].sem_perm.uid,
sema[id].sem_perm.gid,
sema[id].sem_perm.cuid,
sema[id].sem_perm.cgid,
(long long)sema[id].sem_otime,
(long long)sema[id].sem_ctime);
if (offset >= LBFSZ)
goto out;
}
#endif
error = uiomove_frombuf(bf, offset, uio);
out:
free(bf, M_TEMP);
return error;
}
int
procfs_dosysvipc_shm(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf;
int offset = 0;
int error = EFBIG;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
offset += snprintf(bf, LBFSZ,
"%10s %10s %s %21s %5s %5s %5s %5s %5s %5s %5s %10s %10s %10s %21s %21s\n",
"key", "shmid", "perms", "size", "cpid", "lpid", "nattch", "uid",
"gid", "cuid", "cgid", "atime", "dtime", "ctime", "rss", "swap");
if (offset >= LBFSZ)
goto out;
#ifdef SYSVSHM
for (unsigned int id = 0; id < shminfo.shmmni; id++)
if ((shmsegs[id].shm_perm.mode & SHMSEG_ALLOCATED) != 0) {
offset += snprintf(&bf[offset], LBFSZ - offset,
"%10d %10d %4o %21zu %5u %5u %5u %5u %5u %5u %5u %10lld %10lld %10lld %21d %21d\n",
(int) shmsegs[id].shm_perm._key,
IXSEQ_TO_IPCID(id, shmsegs[id].shm_perm),
shmsegs[id].shm_perm.mode,
shmsegs[id].shm_segsz,
shmsegs[id].shm_cpid,
shmsegs[id].shm_lpid,
shmsegs[id].shm_nattch,
shmsegs[id].shm_perm.uid,
shmsegs[id].shm_perm.gid,
shmsegs[id].shm_perm.cuid,
shmsegs[id].shm_perm.cgid,
(long long)shmsegs[id].shm_atime,
(long long)shmsegs[id].shm_dtime,
(long long)shmsegs[id].shm_ctime,
0, 0); /* XXX rss & swp are not supported */
if (offset >= LBFSZ)
goto out;
}
#endif
error = uiomove_frombuf(bf, offset, uio);
out:
free(bf, M_TEMP);
return error;
}
#ifdef MQUEUE
#define print_uint(value, uio) PFS_print_uint(value, uio);
static int
PFS_print_uint(unsigned int value, struct uio *uio)
{
char *bf;
int offset = 0;
int error = EFBIG;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
offset += snprintf(bf, LBFSZ, "%u\n", value);
if (offset >= LBFSZ)
goto out;
error = uiomove_frombuf(bf, offset, uio);
out:
free(bf, M_TEMP);
return error;
}
#else
#define print_uint(value, uio) EINVAL
#endif
int
procfs_domq_msg_def(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
return print_uint(mq_def_maxmsg, uio);
}
int
procfs_domq_msg_max(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
return print_uint(mq_max_maxmsg, uio);
}
int
procfs_domq_siz_def(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
return print_uint(MQ_DEF_MSGSIZE, uio);
}
int
procfs_domq_siz_max(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
return print_uint(mq_max_msgsize, uio);
}
int
procfs_domq_qmax(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
return print_uint(mq_open_max, uio);
}
