/root/freebsd/sys/compat/linux/linux

Bug Summary

File:	compat/linux/linux_misc.c
Warning:	line 1098, column 11 Copies out a struct with a union element with different sizes
Annotated Source Code

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clang -cc1 -triple x86_64-unknown-freebsd11.2 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name linux_misc.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -mrelocation-model static -mthread-model posix -mdisable-fp-elim -relaxed-aliasing -masm-verbose -mconstructor-aliases -ffreestanding -mcode-model kernel -target-cpu x86-64 -target-feature -mmx -target-feature -sse -target-feature -aes -target-feature -avx -disable-red-zone -no-implicit-float -dwarf-column-info -debugger-tuning=gdb -nostdsysteminc -nobuiltininc -resource-dir /root/kernel-uninitialized-memory-checker/build/lib/clang/8.0.0 -include /usr/obj/root/freebsd/amd64.amd64/sys/GENERIC/opt_global.h -D _KERNEL -D KLD_MODULE -D KLD_TIED -D HAVE_KERNEL_OPTION_HEADERS -I . -I /root/freebsd/sys -I /root/freebsd/sys/contrib/ck/include -I /usr/obj/root/freebsd/amd64.amd64/sys/GENERIC -D __printf__=__freebsd_kprintf__ -O2 -Wno-pointer-sign -Wno-unknown-pragmas -Wno-error-tautological-compare -Wno-error-empty-body -Wno-error-parentheses-equality -Wno-error-unused-function -Wno-error-pointer-sign -Wno-error-shift-negative-value -Wno-address-of-packed-member -std=iso9899:1999 -fdebug-compilation-dir /usr/obj/root/freebsd/amd64.amd64/sys/GENERIC/modules/root/freebsd/sys/modules/linux64 -ferror-limit 19 -fmessage-length 0 -fwrapv -stack-protector 1 -fobjc-runtime=gnustep -fno-common -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-checker alpha.security.KernelMemoryDisclosure -analyzer-disable-checker core,unix,deadcode,nullability -analyzer-output=html -o /root/analyzer/2018-12-28-044519-76292-1 -x c /root/freebsd/sys/compat/linux/linux_misc.c -faddrsig
1/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2002 Doug Rabson
* Copyright (c) 1994-1995 Søren Schmidt
* All rights reserved.
*
* 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
*    in this position and unchanged.
* 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. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*/

32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$")__asm__(".ident\t\"" "$FreeBSD$" "\"");

35#include "opt_compat.h"

37#include <sys/param.h>
38#include <sys/blist.h>
39#include <sys/fcntl.h>
40#if defined(__i386__)
41#include <sys/imgact_aout.h>
42#endif
43#include <sys/jail.h>
44#include <sys/kernel.h>
45#include <sys/limits.h>
46#include <sys/lock.h>
47#include <sys/malloc.h>
48#include <sys/mman.h>
49#include <sys/mount.h>
50#include <sys/mutex.h>
51#include <sys/namei.h>
52#include <sys/priv.h>
53#include <sys/proc.h>
54#include <sys/reboot.h>
55#include <sys/racct.h>
56#include <sys/random.h>
57#include <sys/resourcevar.h>
58#include <sys/sched.h>
59#include <sys/sdt.h>
60#include <sys/signalvar.h>
61#include <sys/stat.h>
62#include <sys/syscallsubr.h>
63#include <sys/sysctl.h>
64#include <sys/sysproto.h>
65#include <sys/systm.h>
66#include <sys/time.h>
67#include <sys/vmmeter.h>
68#include <sys/vnode.h>
69#include <sys/wait.h>
70#include <sys/cpuset.h>
71#include <sys/uio.h>

73#include <security/mac/mac_framework.h>

75#include <vm/vm.h>
76#include <vm/pmap.h>
77#include <vm/vm_kern.h>
78#include <vm/vm_map.h>
79#include <vm/vm_extern.h>
80#include <vm/vm_object.h>
81#include <vm/swap_pager.h>

83#ifdef COMPAT_LINUX32
84#include <machine/../linux32/linux.h>
85#include <machine/../linux32/linux32_proto.h>
86#else
87#include <machine/../linux/linux.h>
88#include <machine/../linux/linux_proto.h>
89#endif

91#include <compat/linux/linux_dtrace.h>
92#include <compat/linux/linux_file.h>
93#include <compat/linux/linux_mib.h>
94#include <compat/linux/linux_signal.h>
95#include <compat/linux/linux_timer.h>
96#include <compat/linux/linux_util.h>
97#include <compat/linux/linux_sysproto.h>
98#include <compat/linux/linux_emul.h>
99#include <compat/linux/linux_misc.h>

101/**
* Special DTrace provider for the linuxulator.
*
* In this file we define the provider for the entire linuxulator. All
* modules (= files of the linuxulator) use it.
*
* We define a different name depending on the emulated bitsize, see
* ../../<ARCH>/linux{,32}/linux.h, e.g.:
*      native bitsize          = linuxulator
*      amd64, 32bit emulation  = linuxulator32
*/
112LIN_SDT_PROVIDER_DEFINE(LINUX_DTRACE)struct sdt_provider sdt_provider_linuxulator[1] = { { "linuxulator"
, { ((void *)0), ((void *)0) }, 0, 0 } }; __asm__(".globl " "__start_set_sdt_providers_set"
); __asm__(".globl " "__stop_set_sdt_providers_set"); static void
 const * const __set_sdt_providers_set_sym_sdt_provider_linuxulator
 __attribute__((__section__("set_" "sdt_providers_set"))) __attribute__
((__used__)) = &(sdt_provider_linuxulator);;

114int stclohz;				/* Statistics clock frequency */

116static unsigned int linux_to_bsd_resource[LINUX_RLIM_NLIMITS10] = {
RLIMIT_CPU0, RLIMIT_FSIZE1, RLIMIT_DATA2, RLIMIT_STACK3,
RLIMIT_CORE4, RLIMIT_RSS5, RLIMIT_NPROC7, RLIMIT_NOFILE8,
RLIMIT_MEMLOCK6, RLIMIT_AS10
120};

122struct l_sysinfo {
l_long		uptime;		/* Seconds since boot */
l_ulong		loads[3];	/* 1, 5, and 15 minute load averages */
125#define LINUX_SYSINFO_LOADS_SCALE65536 65536
l_ulong		totalram;	/* Total usable main memory size */
l_ulong		freeram;	/* Available memory size */
l_ulong		sharedram;	/* Amount of shared memory */
l_ulong		bufferram;	/* Memory used by buffers */
l_ulong		totalswap;	/* Total swap space size */
l_ulong		freeswap;	/* swap space still available */
l_ushort	procs;		/* Number of current processes */
l_ushort	pads;
l_ulong		totalbig;
l_ulong		freebig;
l_uint		mem_unit;
char		_f[20-2*sizeof(l_long)-sizeof(l_int)];	/* padding */
138};

140struct l_pselect6arg {
l_uintptr_t	ss;
l_size_t	ss_len;
143};

145static int	linux_utimensat_nsec_valid(l_long);


148int
149linux_sysinfo(struct thread *td, struct linux_sysinfo_args *args)
150{
struct l_sysinfo sysinfo;
vm_object_t object;
int i, j;
struct timespec ts;

bzero(&sysinfo, sizeof(sysinfo))__builtin_memset((&sysinfo), 0, (sizeof(sysinfo)));
getnanouptime(&ts);
if (ts.tv_nsec != 0)
ts.tv_sec++;
sysinfo.uptime = ts.tv_sec;

/* Use the information from the mib to get our load averages */
for (i = 0; i < 3; i++)
sysinfo.loads[i] = averunnable.ldavg[i] *
    LINUX_SYSINFO_LOADS_SCALE65536 / averunnable.fscale;

sysinfo.totalram = physmem * PAGE_SIZE(1<<12);
sysinfo.freeram = sysinfo.totalram - vm_wire_count() * PAGE_SIZE(1<<12);

sysinfo.sharedram = 0;
mtx_lock(&vm_object_list_mtx)__mtx_lock_flags(&((((&vm_object_list_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (171
));
TAILQ_FOREACH(object, &vm_object_list, object_list)for ((object) = (((&vm_object_list))->tqh_first); (object
); (object) = (((object))->object_list.tqe_next))
if (object->shadow_count > 1)
	sysinfo.sharedram += object->resident_page_count;
mtx_unlock(&vm_object_list_mtx)__mtx_unlock_flags(&((((&vm_object_list_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (175
));

sysinfo.sharedram *= PAGE_SIZE(1<<12);
sysinfo.bufferram = 0;

swap_pager_status(&i, &j);
sysinfo.totalswap = i * PAGE_SIZE(1<<12);
sysinfo.freeswap = (i - j) * PAGE_SIZE(1<<12);

sysinfo.procs = nprocs;

/* The following are only present in newer Linux kernels. */
sysinfo.totalbig = 0;
sysinfo.freebig = 0;
sysinfo.mem_unit = 1;

return (copyout(&sysinfo, args->info, sizeof(sysinfo)));
192}

194#ifdef LINUX_LEGACY_SYSCALLS
195int
196linux_alarm(struct thread *td, struct linux_alarm_args *args)
197{
struct itimerval it, old_it;
u_int secs;
int error;

202#ifdef DEBUG
if (ldebug(alarm)((((const unsigned char *)(linux_debug_map))[(37)/8] & (1
<<((37)%8))) == 0))
printf(ARGS(alarm, "%u")"linux(%ld/%ld): ""alarm""(""%u"")\n", (long)td->td_proc->
p_pid, (long)td->td_tid, args->secs);
205#endif
secs = args->secs;
/*
* Linux alarm() is always successful. Limit secs to INT32_MAX / 2
* to match kern_setitimer()'s limit to avoid error from it.
*
* XXX. Linux limit secs to INT_MAX on 32 and does not limit on 64-bit
* platforms.
*/
if (secs > INT32_MAX0x7fffffff / 2)
secs = INT32_MAX0x7fffffff / 2;

it.it_value.tv_sec = secs;
it.it_value.tv_usec = 0;
timevalclear(&it.it_interval)((&it.it_interval)->tv_sec = (&it.it_interval)->
tv_usec = 0);
error = kern_setitimer(td, ITIMER_REAL0, &it, &old_it);
KASSERT(error == 0, ("kern_setitimer returns %d", error))do { if (__builtin_expect((!(error == 0)), 0)) panic ("kern_setitimer returns %d"
, error); } while (0);

if ((old_it.it_value.tv_sec == 0 && old_it.it_value.tv_usec > 0) ||
   old_it.it_value.tv_usec >= 500000)
old_it.it_value.tv_sec++;
td->td_retvaltd_uretoff.tdu_retval[0] = old_it.it_value.tv_sec;
return (0);
228}
229#endif

231int
232linux_brk(struct thread *td, struct linux_brk_args *args)
233{
struct vmspace *vm = td->td_proc->p_vmspace;
uintptr_t new, old;

237#ifdef DEBUG
if (ldebug(brk)((((const unsigned char *)(linux_debug_map))[(12)/8] & (1
<<((12)%8))) == 0))
printf(ARGS(brk, "%p")"linux(%ld/%ld): ""brk""(""%p"")\n", (long)td->td_proc->
p_pid, (long)td->td_tid, (void *)(uintptr_t)args->dsend);
240#endif
old = (uintptr_t)vm->vm_daddr + ctob(vm->vm_dsize)((vm->vm_dsize)<<12);
new = (uintptr_t)args->dsend;
if ((caddr_t)new > vm->vm_daddr && !kern_break(td, &new))
td->td_retvaltd_uretoff.tdu_retval[0] = (register_t)new;
else
td->td_retvaltd_uretoff.tdu_retval[0] = (register_t)old;

return (0);
249}

251#if defined(__i386__)
252/* XXX: what about amd64/linux32? */

254int
255linux_uselib(struct thread *td, struct linux_uselib_args *args)
256{
struct nameidata ni;
struct vnode *vp;
struct exec *a_out;
struct vattr attr;
vm_offset_t vmaddr;
unsigned long file_offset;
unsigned long bss_size;
char *library;
ssize_t aresid;
int error, locked, writecount;

LCONVPATHEXIST(td, args->library, &library)do { int _error; _error = linux_emul_convpath(td, args->library
, UIO_USERSPACE, &library, 0, -100); if (*(&library) ==
 ((void *)0)) return (_error); } while (0);

270#ifdef DEBUG
if (ldebug(uselib)((((const unsigned char *)(linux_debug_map))[(LINUX_SYS_linux_uselib
)/8] & (1<<((LINUX_SYS_linux_uselib)%8))) == 0))
printf(ARGS(uselib, "%s")"linux(%ld/%ld): ""uselib""(""%s"")\n", (long)td->td_proc->
p_pid, (long)td->td_tid, library);
273#endif

a_out = NULL((void *)0);
locked = 0;
vp = NULL((void *)0);

NDINIT(&ni, LOOKUP, ISOPEN | FOLLOW | LOCKLEAF | AUDITVNODE1,NDINIT_ALL(&ni, 0, 0x00200000 | 0x0040 | 0x0004 | 0x04000000
, UIO_SYSSPACE, library, -100, ((void *)0), 0, td)
   UIO_SYSSPACE, library, td)NDINIT_ALL(&ni, 0, 0x00200000 | 0x0040 | 0x0004 | 0x04000000
, UIO_SYSSPACE, library, -100, ((void *)0), 0, td);
error = namei(&ni);
LFREEPATH(library)free(library, M_TEMP);
if (error)
goto cleanup;

vp = ni.ni_vp;
NDFREE(&ni, NDF_ONLY_PNBUF(~0x00000020));

/*
* From here on down, we have a locked vnode that must be unlocked.
* XXX: The code below largely duplicates exec_check_permissions().
*/
locked = 1;

/* Writable? */
error = VOP_GET_WRITECOUNT(vp, &writecount);
if (error != 0)
goto cleanup;
if (writecount != 0) {
error = ETXTBSY26;
goto cleanup;
}

/* Executable? */
error = VOP_GETATTR(vp, &attr, td->td_ucred);
if (error)
goto cleanup;

if ((vp->v_mount->mnt_flag & MNT_NOEXEC0x0000000000000004ULL) ||
   ((attr.va_mode & 0111) == 0) || (attr.va_type != VREG)) {
/* EACCESS is what exec(2) returns. */
error = ENOEXEC8;
goto cleanup;
}

/* Sensible size? */
if (attr.va_size == 0) {
error = ENOEXEC8;
goto cleanup;
}

/* Can we access it? */
error = VOP_ACCESS(vp, VEXEC000000000100, td->td_ucred, td);
if (error)
goto cleanup;

/*
* XXX: This should use vn_open() so that it is properly authorized,
* and to reduce code redundancy all over the place here.
* XXX: Not really, it duplicates far more of exec_check_permissions()
* than vn_open().
*/
333#ifdef MAC1
error = mac_vnode_check_open(td->td_ucred, vp, VREAD000000000400);
if (error)
goto cleanup;
337#endif
error = VOP_OPEN(vp, FREAD0x0001, td->td_ucred, td, NULL((void *)0));
if (error)
goto cleanup;

/* Pull in executable header into exec_map */
error = vm_mmap(exec_map, (vm_offset_t *)&a_out, PAGE_SIZE(1<<12),
   VM_PROT_READ((vm_prot_t) 0x01), VM_PROT_READ((vm_prot_t) 0x01), 0, OBJT_VNODE, vp, 0);
if (error)
goto cleanup;

/* Is it a Linux binary ? */
if (((a_out->a_magic >> 16) & 0xff) != 0x64) {
error = ENOEXEC8;
goto cleanup;
}

/*
* While we are here, we should REALLY do some more checks
*/

/* Set file/virtual offset based on a.out variant. */
switch ((int)(a_out->a_magic & 0xffff)) {
case 0413:			/* ZMAGIC */
file_offset = 1024;
break;
case 0314:			/* QMAGIC */
file_offset = 0;
break;
default:
error = ENOEXEC8;
goto cleanup;
}

bss_size = round_page(a_out->a_bss)((((unsigned long)(a_out->a_bss)) + ((1<<12)-1)) &
 ~(((1<<12)-1)));

/* Check various fields in header for validity/bounds. */
if (a_out->a_text & PAGE_MASK((1<<12)-1) || a_out->a_data & PAGE_MASK((1<<12)-1)) {
error = ENOEXEC8;
goto cleanup;
}

/* text + data can't exceed file size */
if (a_out->a_data + a_out->a_text > attr.va_size) {
error = EFAULT14;
goto cleanup;
}

/*
* text/data/bss must not exceed limits
* XXX - this is not complete. it should check current usage PLUS
* the resources needed by this library.
*/
PROC_LOCK(td->td_proc)__mtx_lock_flags(&((((&(td->td_proc)->p_mtx))))
->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (390));
if (a_out->a_text > maxtsiz ||
   a_out->a_data + bss_size > lim_cur_proc(td->td_proc, RLIMIT_DATA2) ||
   racct_set(td->td_proc, RACCT_DATA1, a_out->a_data +
   bss_size) != 0) {
PROC_UNLOCK(td->td_proc)__mtx_unlock_flags(&((((&(td->td_proc)->p_mtx))
))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (395));
error = ENOMEM12;
goto cleanup;
}
PROC_UNLOCK(td->td_proc)__mtx_unlock_flags(&((((&(td->td_proc)->p_mtx))
))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (399));

/*
* Prevent more writers.
* XXX: Note that if any of the VM operations fail below we don't
* clear this flag.
*/
VOP_SET_TEXT(vp);

/*
* Lock no longer needed
*/
locked = 0;
VOP_UNLOCK(vp, 0);

/*
* Check if file_offset page aligned. Currently we cannot handle
* misalinged file offsets, and so we read in the entire image
* (what a waste).
*/
if (file_offset & PAGE_MASK((1<<12)-1)) {
420#ifdef DEBUG
printf("uselib: Non page aligned binary %lu\n", file_offset);
422#endif
/* Map text+data read/write/execute */

/* a_entry is the load address and is page aligned */
vmaddr = trunc_page(a_out->a_entry)((unsigned long)(a_out->a_entry) & ~(((1<<12)-1)
));

/* get anon user mapping, read+write+execute */
error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL((void *)0), 0,
    &vmaddr, a_out->a_text + a_out->a_data, 0, VMFS_NO_SPACE0,
    VM_PROT_ALL(((vm_prot_t) 0x01)|((vm_prot_t) 0x02)|((vm_prot_t) 0x04)), VM_PROT_ALL(((vm_prot_t) 0x01)|((vm_prot_t) 0x02)|((vm_prot_t) 0x04)), 0);
if (error)
	goto cleanup;

error = vn_rdwr(UIO_READ, vp, (void *)vmaddr, file_offset,
    a_out->a_text + a_out->a_data, UIO_USERSPACE, 0,
    td->td_ucred, NOCRED((struct ucred *)0), &aresid, td);
if (error != 0)
	goto cleanup;
if (aresid != 0) {
	error = ENOEXEC8;
	goto cleanup;
}
} else {
445#ifdef DEBUG
printf("uselib: Page aligned binary %lu\n", file_offset);
447#endif
/*
 * for QMAGIC, a_entry is 20 bytes beyond the load address
 * to skip the executable header
 */
vmaddr = trunc_page(a_out->a_entry)((unsigned long)(a_out->a_entry) & ~(((1<<12)-1)
));

/*
 * Map it all into the process's space as a single
 * copy-on-write "data" segment.
 */
error = vm_mmap(&td->td_proc->p_vmspace->vm_map, &vmaddr,
    a_out->a_text + a_out->a_data, VM_PROT_ALL(((vm_prot_t) 0x01)|((vm_prot_t) 0x02)|((vm_prot_t) 0x04)), VM_PROT_ALL(((vm_prot_t) 0x01)|((vm_prot_t) 0x02)|((vm_prot_t) 0x04)),
    MAP_PRIVATE0x0002 | MAP_FIXED0x0010, OBJT_VNODE, vp, file_offset);
if (error)
	goto cleanup;
}
464#ifdef DEBUG
printf("mem=%08lx = %08lx %08lx\n", (long)vmaddr, ((long *)vmaddr)[0],
   ((long *)vmaddr)[1]);
467#endif
if (bss_size != 0) {
/* Calculate BSS start address */
vmaddr = trunc_page(a_out->a_entry)((unsigned long)(a_out->a_entry) & ~(((1<<12)-1)
)) + a_out->a_text +
    a_out->a_data;

/* allocate some 'anon' space */
error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL((void *)0), 0,
    &vmaddr, bss_size, 0, VMFS_NO_SPACE0, VM_PROT_ALL(((vm_prot_t) 0x01)|((vm_prot_t) 0x02)|((vm_prot_t) 0x04)),
    VM_PROT_ALL(((vm_prot_t) 0x01)|((vm_prot_t) 0x02)|((vm_prot_t) 0x04)), 0);
if (error)
	goto cleanup;
}

481cleanup:
/* Unlock vnode if needed */
if (locked)
VOP_UNLOCK(vp, 0);

/* Release the temporary mapping. */
if (a_out)
kmap_free_wakeup(exec_map, (vm_offset_t)a_out, PAGE_SIZE(1<<12));

return (error);
491}

493#endif	/* __i386__ */

495#ifdef LINUX_LEGACY_SYSCALLS
496int
497linux_select(struct thread *td, struct linux_select_args *args)
498{
l_timeval ltv;
struct timeval tv0, tv1, utv, *tvp;
int error;

503#ifdef DEBUG
if (ldebug(select)((((const unsigned char *)(linux_debug_map))[(23)/8] & (1
<<((23)%8))) == 0))
printf(ARGS(select, "%d, %p, %p, %p, %p")"linux(%ld/%ld): ""select""(""%d, %p, %p, %p, %p"")\n", (long
)td->td_proc->p_pid, (long)td->td_tid, args->nfds,
    (void *)args->readfds, (void *)args->writefds,
    (void *)args->exceptfds, (void *)args->timeout);
508#endif

/*
* Store current time for computation of the amount of
* time left.
*/
if (args->timeout) {
if ((error = copyin(args->timeout, &ltv, sizeof(ltv))))
	goto select_out;
utv.tv_sec = ltv.tv_sec;
utv.tv_usec = ltv.tv_usec;
519#ifdef DEBUG
if (ldebug(select)((((const unsigned char *)(linux_debug_map))[(23)/8] & (1
<<((23)%8))) == 0))
	printf(LMSG("incoming timeout (%jd/%ld)")"linux(%ld/%ld): ""incoming timeout (%jd/%ld)""\n", (long)td->
td_proc->p_pid, (long)td->td_tid,
	    (intmax_t)utv.tv_sec, utv.tv_usec);
523#endif

if (itimerfix(&utv)) {
	/*
	 * The timeval was invalid.  Convert it to something
	 * valid that will act as it does under Linux.
	 */
	utv.tv_sec += utv.tv_usec / 1000000;
	utv.tv_usec %= 1000000;
	if (utv.tv_usec < 0) {
		utv.tv_sec -= 1;
		utv.tv_usec += 1000000;
	}
	if (utv.tv_sec < 0)
		timevalclear(&utv)((&utv)->tv_sec = (&utv)->tv_usec = 0);
}
microtime(&tv0);
tvp = &utv;
} else
tvp = NULL((void *)0);

error = kern_select(td, args->nfds, args->readfds, args->writefds,
   args->exceptfds, tvp, LINUX_NFDBITSsizeof(l_fd_mask) * 8);

547#ifdef DEBUG
if (ldebug(select)((((const unsigned char *)(linux_debug_map))[(23)/8] & (1
<<((23)%8))) == 0))
printf(LMSG("real select returns %d")"linux(%ld/%ld): ""real select returns %d""\n", (long)td->
td_proc->p_pid, (long)td->td_tid, error);
550#endif
if (error)
goto select_out;

if (args->timeout) {
if (td->td_retvaltd_uretoff.tdu_retval[0]) {
	/*
	 * Compute how much time was left of the timeout,
	 * by subtracting the current time and the time
	 * before we started the call, and subtracting
	 * that result from the user-supplied value.
	 */
	microtime(&tv1);
	timevalsub(&tv1, &tv0);
	timevalsub(&utv, &tv1);
	if (utv.tv_sec < 0)
		timevalclear(&utv)((&utv)->tv_sec = (&utv)->tv_usec = 0);
} else
	timevalclear(&utv)((&utv)->tv_sec = (&utv)->tv_usec = 0);
569#ifdef DEBUG
if (ldebug(select)((((const unsigned char *)(linux_debug_map))[(23)/8] & (1
<<((23)%8))) == 0))
	printf(LMSG("outgoing timeout (%jd/%ld)")"linux(%ld/%ld): ""outgoing timeout (%jd/%ld)""\n", (long)td->
td_proc->p_pid, (long)td->td_tid,
	    (intmax_t)utv.tv_sec, utv.tv_usec);
573#endif
ltv.tv_sec = utv.tv_sec;
ltv.tv_usec = utv.tv_usec;
if ((error = copyout(&ltv, args->timeout, sizeof(ltv))))
	goto select_out;
}

580select_out:
581#ifdef DEBUG
if (ldebug(select)((((const unsigned char *)(linux_debug_map))[(23)/8] & (1
<<((23)%8))) == 0))
printf(LMSG("select_out -> %d")"linux(%ld/%ld): ""select_out -> %d""\n", (long)td->td_proc
->p_pid, (long)td->td_tid, error);
584#endif
return (error);
586}
587#endif

589int
590linux_mremap(struct thread *td, struct linux_mremap_args *args)
591{
uintptr_t addr;
size_t len;
int error = 0;

596#ifdef DEBUG
if (ldebug(mremap)((((const unsigned char *)(linux_debug_map))[(25)/8] & (1
<<((25)%8))) == 0))
printf(ARGS(mremap, "%p, %08lx, %08lx, %08lx")"linux(%ld/%ld): ""mremap""(""%p, %08lx, %08lx, %08lx"")\n", (
long)td->td_proc->p_pid, (long)td->td_tid,
    (void *)(uintptr_t)args->addr,
    (unsigned long)args->old_len,
    (unsigned long)args->new_len,
    (unsigned long)args->flags);
603#endif

if (args->flags & ~(LINUX_MREMAP_FIXED2 | LINUX_MREMAP_MAYMOVE1)) {
td->td_retvaltd_uretoff.tdu_retval[0] = 0;
return (EINVAL22);
}

/*
* Check for the page alignment.
* Linux defines PAGE_MASK to be FreeBSD ~PAGE_MASK.
*/
if (args->addr & PAGE_MASK((1<<12)-1)) {
td->td_retvaltd_uretoff.tdu_retval[0] = 0;
return (EINVAL22);
}

args->new_len = round_page(args->new_len)((((unsigned long)(args->new_len)) + ((1<<12)-1)) &
 ~(((1<<12)-1)));
args->old_len = round_page(args->old_len)((((unsigned long)(args->old_len)) + ((1<<12)-1)) &
 ~(((1<<12)-1)));

if (args->new_len > args->old_len) {
td->td_retvaltd_uretoff.tdu_retval[0] = 0;
return (ENOMEM12);
}

if (args->new_len < args->old_len) {
addr = args->addr + args->new_len;
len = args->old_len - args->new_len;
error = kern_munmap(td, addr, len);
}

td->td_retvaltd_uretoff.tdu_retval[0] = error ? 0 : (uintptr_t)args->addr;
return (error);
635}

637#define LINUX_MS_ASYNC0x0001       0x0001
638#define LINUX_MS_INVALIDATE0x0002  0x0002
639#define LINUX_MS_SYNC0x0004        0x0004

641int
642linux_msync(struct thread *td, struct linux_msync_args *args)
643{

return (kern_msync(td, args->addr, args->len,
   args->fl & ~LINUX_MS_SYNC0x0004));
647}

649#ifdef LINUX_LEGACY_SYSCALLS
650int
651linux_time(struct thread *td, struct linux_time_args *args)
652{
struct timeval tv;
l_time_t tm;
int error;

657#ifdef DEBUG
if (ldebug(time)((((const unsigned char *)(linux_debug_map))[(201)/8] & (
1<<((201)%8))) == 0))
printf(ARGS(time, "*")"linux(%ld/%ld): ""time""(""*"")\n", (long)td->td_proc->
p_pid, (long)td->td_tid);
660#endif

microtime(&tv);
tm = tv.tv_sec;
if (args->tm && (error = copyout(&tm, args->tm, sizeof(tm))))
return (error);
td->td_retvaltd_uretoff.tdu_retval[0] = tm;
return (0);
668}
669#endif

671struct l_times_argv {
l_clock_t	tms_utime;
l_clock_t	tms_stime;
l_clock_t	tms_cutime;
l_clock_t	tms_cstime;
676};


679/*
* Glibc versions prior to 2.2.1 always use hard-coded CLK_TCK value.
* Since 2.2.1 Glibc uses value exported from kernel via AT_CLKTCK
* auxiliary vector entry.
*/
684#define	CLK_TCK100		100

686#define	CONVOTCK(r)(r.tv_sec * 100 + r.tv_usec / (1000000 / 100))	(r.tv_sec * CLK_TCK100 + r.tv_usec / (1000000 / CLK_TCK100))
687#define	CONVNTCK(r)(r.tv_sec * stclohz + r.tv_usec / (1000000 / stclohz))	(r.tv_sec * stclohz + r.tv_usec / (1000000 / stclohz))

689#define	CONVTCK(r)(linux_kernver(td) >= (((2) << 16) + ((4) << 8
) + (0)) ? (r.tv_sec * stclohz + r.tv_usec / (1000000 / stclohz
)) : (r.tv_sec * 100 + r.tv_usec / (1000000 / 100)))	(linux_kernver(td) >= LINUX_KERNVER_2004000(((2) << 16) + ((4) << 8) + (0)) ?		\
	    CONVNTCK(r)(r.tv_sec * stclohz + r.tv_usec / (1000000 / stclohz)) : CONVOTCK(r)(r.tv_sec * 100 + r.tv_usec / (1000000 / 100)))

692int
693linux_times(struct thread *td, struct linux_times_args *args)
694{
struct timeval tv, utime, stime, cutime, cstime;
struct l_times_argv tms;
struct proc *p;
int error;

700#ifdef DEBUG
if (ldebug(times)((((const unsigned char *)(linux_debug_map))[(100)/8] & (
1<<((100)%8))) == 0))
printf(ARGS(times, "*")"linux(%ld/%ld): ""times""(""*"")\n", (long)td->td_proc->
p_pid, (long)td->td_tid);
703#endif

if (args->buf != NULL((void *)0)) {
p = td->td_proc;
PROC_LOCK(p)__mtx_lock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (707
));
PROC_STATLOCK(p)__mtx_lock_spin_flags(&((((&(p)->p_statmtx))))->
mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (708));
calcru(p, &utime, &stime);
PROC_STATUNLOCK(p)__mtx_unlock_spin_flags(&((((&(p)->p_statmtx))))->
mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (710));
calccru(p, &cutime, &cstime);
PROC_UNLOCK(p)__mtx_unlock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (712
));

tms.tms_utime = CONVTCK(utime)(linux_kernver(td) >= (((2) << 16) + ((4) << 8
) + (0)) ? (utime.tv_sec * stclohz + utime.tv_usec / (1000000
 / stclohz)) : (utime.tv_sec * 100 + utime.tv_usec / (1000000
 / 100)));
tms.tms_stime = CONVTCK(stime)(linux_kernver(td) >= (((2) << 16) + ((4) << 8
) + (0)) ? (stime.tv_sec * stclohz + stime.tv_usec / (1000000
 / stclohz)) : (stime.tv_sec * 100 + stime.tv_usec / (1000000
 / 100)));

tms.tms_cutime = CONVTCK(cutime)(linux_kernver(td) >= (((2) << 16) + ((4) << 8
) + (0)) ? (cutime.tv_sec * stclohz + cutime.tv_usec / (1000000
 / stclohz)) : (cutime.tv_sec * 100 + cutime.tv_usec / (1000000
 / 100)));
tms.tms_cstime = CONVTCK(cstime)(linux_kernver(td) >= (((2) << 16) + ((4) << 8
) + (0)) ? (cstime.tv_sec * stclohz + cstime.tv_usec / (1000000
 / stclohz)) : (cstime.tv_sec * 100 + cstime.tv_usec / (1000000
 / 100)));

if ((error = copyout(&tms, args->buf, sizeof(tms))))
	return (error);
}

microuptime(&tv);
td->td_retvaltd_uretoff.tdu_retval[0] = (int)CONVTCK(tv)(linux_kernver(td) >= (((2) << 16) + ((4) << 8
) + (0)) ? (tv.tv_sec * stclohz + tv.tv_usec / (1000000 / stclohz
)) : (tv.tv_sec * 100 + tv.tv_usec / (1000000 / 100)));
return (0);
727}

729int
730linux_newuname(struct thread *td, struct linux_newuname_args *args)
731{
struct l_new_utsname utsname;
char osname[LINUX_MAX_UTSNAME65];
char osrelease[LINUX_MAX_UTSNAME65];
char *p;

737#ifdef DEBUG
if (ldebug(newuname)((((const unsigned char *)(linux_debug_map))[(63)/8] & (1
<<((63)%8))) == 0))
printf(ARGS(newuname, "*")"linux(%ld/%ld): ""newuname""(""*"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid);
740#endif

linux_get_osname(td, osname);
linux_get_osrelease(td, osrelease);

bzero(&utsname, sizeof(utsname))__builtin_memset((&utsname), 0, (sizeof(utsname)));
strlcpy(utsname.sysname, osname, LINUX_MAX_UTSNAME65);
getcredhostname(td->td_ucred, utsname.nodename, LINUX_MAX_UTSNAME65);
getcreddomainname(td->td_ucred, utsname.domainname, LINUX_MAX_UTSNAME65);
strlcpy(utsname.release, osrelease, LINUX_MAX_UTSNAME65);
strlcpy(utsname.version, version, LINUX_MAX_UTSNAME65);
for (p = utsname.version; *p != '\0'; ++p)
if (*p == '\n') {
	*p = '\0';
	break;
}
strlcpy(utsname.machine, linux_kplatform, LINUX_MAX_UTSNAME65);

return (copyout(&utsname, args->buf, sizeof(utsname)));
759}

761struct l_utimbuf {
l_time_t l_actime;
l_time_t l_modtime;
764};

766#ifdef LINUX_LEGACY_SYSCALLS
767int
768linux_utime(struct thread *td, struct linux_utime_args *args)
769{
struct timeval tv[2], *tvp;
struct l_utimbuf lut;
char *fname;
int error;

LCONVPATHEXIST(td, args->fname, &fname)do { int _error; _error = linux_emul_convpath(td, args->fname
, UIO_USERSPACE, &fname, 0, -100); if (*(&fname) == (
(void *)0)) return (_error); } while (0);

777#ifdef DEBUG
if (ldebug(utime)((((const unsigned char *)(linux_debug_map))[(132)/8] & (
1<<((132)%8))) == 0))
printf(ARGS(utime, "%s, *")"linux(%ld/%ld): ""utime""(""%s, *"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid, fname);
780#endif

if (args->times) {
if ((error = copyin(args->times, &lut, sizeof lut))) {
	LFREEPATH(fname)free(fname, M_TEMP);
	return (error);
}
tv[0].tv_sec = lut.l_actime;
tv[0].tv_usec = 0;
tv[1].tv_sec = lut.l_modtime;
tv[1].tv_usec = 0;
tvp = tv;
} else
tvp = NULL((void *)0);

error = kern_utimesat(td, AT_FDCWD-100, fname, UIO_SYSSPACE, tvp,
   UIO_SYSSPACE);
LFREEPATH(fname)free(fname, M_TEMP);
return (error);
799}
800#endif

802#ifdef LINUX_LEGACY_SYSCALLS
803int
804linux_utimes(struct thread *td, struct linux_utimes_args *args)
805{
l_timeval ltv[2];
struct timeval tv[2], *tvp = NULL((void *)0);
char *fname;
int error;

LCONVPATHEXIST(td, args->fname, &fname)do { int _error; _error = linux_emul_convpath(td, args->fname
, UIO_USERSPACE, &fname, 0, -100); if (*(&fname) == (
(void *)0)) return (_error); } while (0);

813#ifdef DEBUG
if (ldebug(utimes)((((const unsigned char *)(linux_debug_map))[(235)/8] & (
1<<((235)%8))) == 0))
printf(ARGS(utimes, "%s, *")"linux(%ld/%ld): ""utimes""(""%s, *"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid, fname);
816#endif

if (args->tptr != NULL((void *)0)) {
if ((error = copyin(args->tptr, ltv, sizeof ltv))) {
	LFREEPATH(fname)free(fname, M_TEMP);
	return (error);
}
tv[0].tv_sec = ltv[0].tv_sec;
tv[0].tv_usec = ltv[0].tv_usec;
tv[1].tv_sec = ltv[1].tv_sec;
tv[1].tv_usec = ltv[1].tv_usec;
tvp = tv;
}

error = kern_utimesat(td, AT_FDCWD-100, fname, UIO_SYSSPACE,
   tvp, UIO_SYSSPACE);
LFREEPATH(fname)free(fname, M_TEMP);
return (error);
834}
835#endif

837static int
838linux_utimensat_nsec_valid(l_long nsec)
839{

if (nsec == LINUX_UTIME_OMIT0x3FFFFFFE || nsec == LINUX_UTIME_NOW0x3FFFFFFF)
return (0);
if (nsec >= 0 && nsec <= 999999999)
return (0);
return (1);
846}

848int
849linux_utimensat(struct thread *td, struct linux_utimensat_args *args)
850{
struct l_timespec l_times[2];
struct timespec times[2], *timesp = NULL((void *)0);
char *path = NULL((void *)0);
int error, dfd, flags = 0;

dfd = (args->dfd == LINUX_AT_FDCWD-100) ? AT_FDCWD-100 : args->dfd;

858#ifdef DEBUG
if (ldebug(utimensat)((((const unsigned char *)(linux_debug_map))[(280)/8] & (
1<<((280)%8))) == 0))
printf(ARGS(utimensat, "%d, *")"linux(%ld/%ld): ""utimensat""(""%d, *"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid, dfd);
861#endif

if (args->flags & ~LINUX_AT_SYMLINK_NOFOLLOW0x100)
return (EINVAL22);

if (args->times != NULL((void *)0)) {
error = copyin(args->times, l_times, sizeof(l_times));
if (error != 0)
	return (error);

if (linux_utimensat_nsec_valid(l_times[0].tv_nsec) != 0 ||
    linux_utimensat_nsec_valid(l_times[1].tv_nsec) != 0)
	return (EINVAL22);

times[0].tv_sec = l_times[0].tv_sec;
switch (l_times[0].tv_nsec)
{
case LINUX_UTIME_OMIT0x3FFFFFFE:
	times[0].tv_nsec = UTIME_OMIT-2;
	break;
case LINUX_UTIME_NOW0x3FFFFFFF:
	times[0].tv_nsec = UTIME_NOW-1;
	break;
default:
	times[0].tv_nsec = l_times[0].tv_nsec;
}

times[1].tv_sec = l_times[1].tv_sec;
switch (l_times[1].tv_nsec)
{
case LINUX_UTIME_OMIT0x3FFFFFFE:
	times[1].tv_nsec = UTIME_OMIT-2;
	break;
case LINUX_UTIME_NOW0x3FFFFFFF:
	times[1].tv_nsec = UTIME_NOW-1;
	break;
default:
	times[1].tv_nsec = l_times[1].tv_nsec;
	break;
}
timesp = times;

/* This breaks POSIX, but is what the Linux kernel does
 * _on purpose_ (documented in the man page for utimensat(2)),
 * so we must follow that behaviour. */
if (times[0].tv_nsec == UTIME_OMIT-2 &&
    times[1].tv_nsec == UTIME_OMIT-2)
	return (0);
}

if (args->pathname != NULL((void *)0))
LCONVPATHEXIST_AT(td, args->pathname, &path, dfd)do { int _error; _error = linux_emul_convpath(td, args->pathname
, UIO_USERSPACE, &path, 0, dfd); if (*(&path) == ((void
 *)0)) return (_error); } while (0);
else if (args->flags != 0)
return (EINVAL22);

if (args->flags & LINUX_AT_SYMLINK_NOFOLLOW0x100)
flags |= AT_SYMLINK_NOFOLLOW0x0200;

if (path == NULL((void *)0))
error = kern_futimens(td, dfd, timesp, UIO_SYSSPACE);
else {
error = kern_utimensat(td, dfd, path, UIO_SYSSPACE, timesp,
	UIO_SYSSPACE, flags);
LFREEPATH(path)free(path, M_TEMP);
}

return (error);
928}

930#ifdef LINUX_LEGACY_SYSCALLS
931int
932linux_futimesat(struct thread *td, struct linux_futimesat_args *args)
933{
l_timeval ltv[2];
struct timeval tv[2], *tvp = NULL((void *)0);
char *fname;
int error, dfd;

dfd = (args->dfd == LINUX_AT_FDCWD-100) ? AT_FDCWD-100 : args->dfd;
LCONVPATHEXIST_AT(td, args->filename, &fname, dfd)do { int _error; _error = linux_emul_convpath(td, args->filename
, UIO_USERSPACE, &fname, 0, dfd); if (*(&fname) == ((
void *)0)) return (_error); } while (0);

942#ifdef DEBUG
if (ldebug(futimesat)((((const unsigned char *)(linux_debug_map))[(261)/8] & (
1<<((261)%8))) == 0))
printf(ARGS(futimesat, "%s, *")"linux(%ld/%ld): ""futimesat""(""%s, *"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid, fname);
945#endif

if (args->utimes != NULL((void *)0)) {
if ((error = copyin(args->utimes, ltv, sizeof ltv))) {
	LFREEPATH(fname)free(fname, M_TEMP);
	return (error);
}
tv[0].tv_sec = ltv[0].tv_sec;
tv[0].tv_usec = ltv[0].tv_usec;
tv[1].tv_sec = ltv[1].tv_sec;
tv[1].tv_usec = ltv[1].tv_usec;
tvp = tv;
}

error = kern_utimesat(td, dfd, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
LFREEPATH(fname)free(fname, M_TEMP);
return (error);
962}
963#endif

965int
966linux_common_wait(struct thread *td, int pid, int *status,
  int options, struct rusage *ru)
968{
int error, tmpstat;

error = kern_wait(td, pid, &tmpstat, options, ru);
if (error)
return (error);

if (status) {
tmpstat &= 0xffff;
if (WIFSIGNALED(tmpstat)(((tmpstat) & 0177) != 0177 && ((tmpstat) & 0177
) != 0 && (tmpstat) != 0x13))
	tmpstat = (tmpstat & 0xffffff80) |
	    bsd_to_linux_signal(WTERMSIG(tmpstat)(((tmpstat) & 0177)));
else if (WIFSTOPPED(tmpstat)(((tmpstat) & 0177) == 0177))
	tmpstat = (tmpstat & 0xffff00ff) |
	    (bsd_to_linux_signal(WSTOPSIG(tmpstat)((tmpstat) >> 8)) << 8);
else if (WIFCONTINUED(tmpstat)(tmpstat == 0x13))
	tmpstat = 0xffff;
error = copyout(&tmpstat, status, sizeof(int));
}

return (error);
989}

991#if defined(__i386__) || (defined(__amd64__1) && defined(COMPAT_LINUX32))
992int
993linux_waitpid(struct thread *td, struct linux_waitpid_args *args)
994{
struct linux_wait4_args wait4_args;

997#ifdef DEBUG
if (ldebug(waitpid)((((const unsigned char *)(linux_debug_map))[(LINUX_SYS_linux_waitpid
)/8] & (1<<((LINUX_SYS_linux_waitpid)%8))) == 0))
printf(ARGS(waitpid, "%d, %p, %d")"linux(%ld/%ld): ""waitpid""(""%d, %p, %d"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid,
    args->pid, (void *)args->status, args->options);
1001#endif

wait4_args.pid = args->pid;
wait4_args.status = args->status;
wait4_args.options = args->options;
wait4_args.rusage = NULL((void *)0);

return (linux_wait4(td, &wait4_args));
1009}
1010#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */

1012int
1013linux_wait4(struct thread *td, struct linux_wait4_args *args)
1014{
int error, options;
struct rusage ru, *rup;

1018#ifdef DEBUG
if (ldebug(wait4)((((const unsigned char *)(linux_debug_map))[(61)/8] & (1
<<((61)%8))) == 0))
printf(ARGS(wait4, "%d, %p, %d, %p")"linux(%ld/%ld): ""wait4""(""%d, %p, %d, %p"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid,
    args->pid, (void *)args->status, args->options,
    (void *)args->rusage);
1023#endif
if (args->options & ~(LINUX_WUNTRACED0x00000002 | LINUX_WNOHANG0x00000001 |
   LINUX_WCONTINUED0x00000008 | __WCLONE0x80000000 | __WNOTHREAD0x20000000 | __WALL0x40000000))
return (EINVAL22);

options = WEXITED16;
linux_to_bsd_waitopts(args->options, &options);

if (args->rusage != NULL((void *)0))
rup = &ru;
else
rup = NULL((void *)0);
error = linux_common_wait(td, args->pid, args->status, options, rup);
if (error != 0)
return (error);
if (args->rusage != NULL((void *)0))
error = linux_copyout_rusage(&ru, args->rusage)copyout(&ru, args->rusage, sizeof(*&ru));
return (error);
1041}

1043int
1044linux_waitid(struct thread *td, struct linux_waitid_args *args)
1045{
int status, options, sig;
struct __wrusage wru;
siginfo_t siginfo;
l_siginfo_t lsi;
idtype_t idtype;
struct proc *p;
int error;

options = 0;
linux_to_bsd_waitopts(args->options, &options);

if (options & ~(WNOHANG1 | WNOWAIT8 | WEXITED16 | WUNTRACED2 | WCONTINUED4))
1
Taking false branch→
return (EINVAL22);
if (!(options & (WEXITED16 | WUNTRACED2 | WCONTINUED4)))
2
←
Taking false branch→
return (EINVAL22);

switch (args->idtype) {
3
←
Control jumps to 'case 0:'  at line 1063→
case LINUX_P_ALL0:
idtype = P_ALL;
break;
4
←
 Execution continues on line 1080→
case LINUX_P_PID1:
if (args->id <= 0)
	return (EINVAL22);
idtype = P_PID;
break;
case LINUX_P_PGID2:
if (args->id <= 0)
	return (EINVAL22);
idtype = P_PGID;
break;
default:
return (EINVAL22);
}

error = kern_wait6(td, idtype, args->id, &status, options,
   &wru, &siginfo);
if (error != 0)
5
←
Assuming 'error' is equal to 0→
6
←
Taking false branch→
return (error);
if (args->rusage != NULL((void *)0)) {
7
←
Assuming the condition is false→
8
←
Taking false branch→
error = linux_copyout_rusage(&wru.wru_children,copyout(&wru.wru_children, args->rusage, sizeof(*&
wru.wru_children))
    args->rusage)copyout(&wru.wru_children, args->rusage, sizeof(*&
wru.wru_children));
if (error != 0)
	return (error);
}
if (args->info != NULL((void *)0)) {
9
←
Assuming the condition is true→
10
←
Taking true branch→
p = td->td_proc;
if (td->td_retvaltd_uretoff.tdu_retval[0] == 0)
11
←
Assuming the condition is false→
12
←
Taking false branch→
	bzero(&lsi, sizeof(lsi))__builtin_memset((&lsi), 0, (sizeof(lsi)));
else {
	sig = bsd_to_linux_signal(siginfo.si_signo);
	siginfo_to_lsiginfo(&siginfo, &lsi, sig);
}
error = copyout(&lsi, args->info, sizeof(lsi));
13
←
Copies out a struct with a union element with different sizes
}
td->td_retvaltd_uretoff.tdu_retval[0] = 0;

return (error);
1103}

1105#ifdef LINUX_LEGACY_SYSCALLS
1106int
1107linux_mknod(struct thread *td, struct linux_mknod_args *args)
1108{
char *path;
int error;

LCONVPATHCREAT(td, args->path, &path)do { int _error; _error = linux_emul_convpath(td, args->path
, UIO_USERSPACE, &path, 1, -100); if (*(&path) == ((void
 *)0)) return (_error); } while (0);

1114#ifdef DEBUG
if (ldebug(mknod)((((const unsigned char *)(linux_debug_map))[(133)/8] & (
1<<((133)%8))) == 0))
printf(ARGS(mknod, "%s, %d, %ju")"linux(%ld/%ld): ""mknod""(""%s, %d, %ju"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid, path, args->mode,
    (uintmax_t)args->dev);
1118#endif

switch (args->mode & S_IFMT0170000) {
case S_IFIFO0010000:
case S_IFSOCK0140000:
error = kern_mkfifoat(td, AT_FDCWD-100, path, UIO_SYSSPACE,
    args->mode);
break;

case S_IFCHR0020000:
case S_IFBLK0060000:
error = kern_mknodat(td, AT_FDCWD-100, path, UIO_SYSSPACE,
    args->mode, args->dev);
break;

case S_IFDIR0040000:
error = EPERM1;
break;

case 0:
args->mode |= S_IFREG0100000;
/* FALLTHROUGH */
case S_IFREG0100000:
error = kern_openat(td, AT_FDCWD-100, path, UIO_SYSSPACE,
    O_WRONLY0x0001 | O_CREAT0x0200 | O_TRUNC0x0400, args->mode);
if (error == 0)
	kern_close(td, td->td_retvaltd_uretoff.tdu_retval[0]);
break;

default:
error = EINVAL22;
break;
}
LFREEPATH(path)free(path, M_TEMP);
return (error);
1153}
1154#endif

1156int
1157linux_mknodat(struct thread *td, struct linux_mknodat_args *args)
1158{
char *path;
int error, dfd;

dfd = (args->dfd == LINUX_AT_FDCWD-100) ? AT_FDCWD-100 : args->dfd;
LCONVPATHCREAT_AT(td, args->filename, &path, dfd)do { int _error; _error = linux_emul_convpath(td, args->filename
, UIO_USERSPACE, &path, 1, dfd); if (*(&path) == ((void
 *)0)) return (_error); } while (0);

1165#ifdef DEBUG
if (ldebug(mknodat)((((const unsigned char *)(linux_debug_map))[(259)/8] & (
1<<((259)%8))) == 0))
printf(ARGS(mknodat, "%s, %d, %d")"linux(%ld/%ld): ""mknodat""(""%s, %d, %d"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid, path, args->mode, args->dev);
1168#endif

switch (args->mode & S_IFMT0170000) {
case S_IFIFO0010000:
case S_IFSOCK0140000:
error = kern_mkfifoat(td, dfd, path, UIO_SYSSPACE, args->mode);
break;

case S_IFCHR0020000:
case S_IFBLK0060000:
error = kern_mknodat(td, dfd, path, UIO_SYSSPACE, args->mode,
    args->dev);
break;

case S_IFDIR0040000:
error = EPERM1;
break;

case 0:
args->mode |= S_IFREG0100000;
/* FALLTHROUGH */
case S_IFREG0100000:
error = kern_openat(td, dfd, path, UIO_SYSSPACE,
    O_WRONLY0x0001 | O_CREAT0x0200 | O_TRUNC0x0400, args->mode);
if (error == 0)
	kern_close(td, td->td_retvaltd_uretoff.tdu_retval[0]);
break;

default:
error = EINVAL22;
break;
}
LFREEPATH(path)free(path, M_TEMP);
return (error);
1202}

1204/*
* UGH! This is just about the dumbest idea I've ever heard!!
*/
1207int
1208linux_personality(struct thread *td, struct linux_personality_args *args)
1209{
struct linux_pemuldata *pem;
struct proc *p = td->td_proc;
uint32_t old;

1214#ifdef DEBUG
if (ldebug(personality)((((const unsigned char *)(linux_debug_map))[(135)/8] & (
1<<((135)%8))) == 0))
printf(ARGS(personality, "%u")"linux(%ld/%ld): ""personality""(""%u"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid, args->per);
1217#endif

PROC_LOCK(p)__mtx_lock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (1219
));
pem = pem_find(p);
old = pem->persona;
if (args->per != 0xffffffff)
pem->persona = args->per;
PROC_UNLOCK(p)__mtx_unlock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (1224
));

td->td_retvaltd_uretoff.tdu_retval[0] = old;
return (0);
1228}

1230struct l_itimerval {
l_timeval it_interval;
l_timeval it_value;
1233};

1235#define	B2L_ITIMERVAL(bip, lip)(bip)->it_interval.tv_sec = (lip)->it_interval.tv_sec; (
bip)->it_interval.tv_usec = (lip)->it_interval.tv_usec;
 (bip)->it_value.tv_sec = (lip)->it_value.tv_sec; (bip)
->it_value.tv_usec = (lip)->it_value.tv_usec;						\
(bip)->it_interval.tv_sec = (lip)->it_interval.tv_sec;		\
(bip)->it_interval.tv_usec = (lip)->it_interval.tv_usec;	\
(bip)->it_value.tv_sec = (lip)->it_value.tv_sec;		\
(bip)->it_value.tv_usec = (lip)->it_value.tv_usec;

1241int
1242linux_setitimer(struct thread *td, struct linux_setitimer_args *uap)
1243{
int error;
struct l_itimerval ls;
struct itimerval aitv, oitv;

1248#ifdef DEBUG
if (ldebug(setitimer)((((const unsigned char *)(linux_debug_map))[(38)/8] & (1
<<((38)%8))) == 0))
printf(ARGS(setitimer, "%p, %p")"linux(%ld/%ld): ""setitimer""(""%p, %p"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid,
    (void *)uap->itv, (void *)uap->oitv);
1252#endif

if (uap->itv == NULL((void *)0)) {
uap->itv = uap->oitv;
return (linux_getitimer(td, (struct linux_getitimer_args *)uap));
}

error = copyin(uap->itv, &ls, sizeof(ls));
if (error != 0)
return (error);
B2L_ITIMERVAL(&aitv, &ls)(&aitv)->it_interval.tv_sec = (&ls)->it_interval
.tv_sec; (&aitv)->it_interval.tv_usec = (&ls)->
it_interval.tv_usec; (&aitv)->it_value.tv_sec = (&
ls)->it_value.tv_sec; (&aitv)->it_value.tv_usec = (
&ls)->it_value.tv_usec;;
1263#ifdef DEBUG
if (ldebug(setitimer)((((const unsigned char *)(linux_debug_map))[(38)/8] & (1
<<((38)%8))) == 0)) {
printf("setitimer: value: sec: %jd, usec: %ld\n",
    (intmax_t)aitv.it_value.tv_sec, aitv.it_value.tv_usec);
printf("setitimer: interval: sec: %jd, usec: %ld\n",
    (intmax_t)aitv.it_interval.tv_sec, aitv.it_interval.tv_usec);
}
1270#endif
error = kern_setitimer(td, uap->which, &aitv, &oitv);
if (error != 0 || uap->oitv == NULL((void *)0))
return (error);
B2L_ITIMERVAL(&ls, &oitv)(&ls)->it_interval.tv_sec = (&oitv)->it_interval
.tv_sec; (&ls)->it_interval.tv_usec = (&oitv)->
it_interval.tv_usec; (&ls)->it_value.tv_sec = (&oitv
)->it_value.tv_sec; (&ls)->it_value.tv_usec = (&
oitv)->it_value.tv_usec;;

return (copyout(&ls, uap->oitv, sizeof(ls)));
1277}

1279int
1280linux_getitimer(struct thread *td, struct linux_getitimer_args *uap)
1281{
int error;
struct l_itimerval ls;
struct itimerval aitv;

1286#ifdef DEBUG
if (ldebug(getitimer)((((const unsigned char *)(linux_debug_map))[(36)/8] & (1
<<((36)%8))) == 0))
printf(ARGS(getitimer, "%p")"linux(%ld/%ld): ""getitimer""(""%p"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid, (void *)uap->itv);
1289#endif
error = kern_getitimer(td, uap->which, &aitv);
if (error != 0)
return (error);
B2L_ITIMERVAL(&ls, &aitv)(&ls)->it_interval.tv_sec = (&aitv)->it_interval
.tv_sec; (&ls)->it_interval.tv_usec = (&aitv)->
it_interval.tv_usec; (&ls)->it_value.tv_sec = (&aitv
)->it_value.tv_sec; (&ls)->it_value.tv_usec = (&
aitv)->it_value.tv_usec;;
return (copyout(&ls, uap->itv, sizeof(ls)));
1295}

1297#if defined(__i386__) || (defined(__amd64__1) && defined(COMPAT_LINUX32))
1298int
1299linux_nice(struct thread *td, struct linux_nice_args *args)
1300{
struct setpriority_args bsd_args;

bsd_args.which = PRIO_PROCESS0;
bsd_args.who = 0;		/* current process */
bsd_args.prio = args->inc;
return (sys_setpriority(td, &bsd_args));
1307}
1308#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */

1310int
1311linux_setgroups(struct thread *td, struct linux_setgroups_args *args)
1312{
struct ucred *newcred, *oldcred;
l_gid_t *linux_gidset;
gid_t *bsd_gidset;
int ngrp, error;
struct proc *p;

ngrp = args->gidsetsize;
if (ngrp < 0 || ngrp >= ngroups_max + 1)
return (EINVAL22);
linux_gidset = malloc(ngrp * sizeof(*linux_gidset), M_LINUX, M_WAITOK0x0002);
error = copyin(args->grouplist, linux_gidset, ngrp * sizeof(l_gid_t));
if (error)
goto out;
newcred = crget();
crextend(newcred, ngrp + 1);
p = td->td_proc;
PROC_LOCK(p)__mtx_lock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (1329
));
oldcred = p->p_ucred;
crcopy(newcred, oldcred);

/*
* cr_groups[0] holds egid. Setting the whole set from
* the supplied set will cause egid to be changed too.
* Keep cr_groups[0] unchanged to prevent that.
*/

if ((error = priv_check_cred(oldcred, PRIV_CRED_SETGROUPS54)) != 0) {
PROC_UNLOCK(p)__mtx_unlock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (1340
));
crfree(newcred);
goto out;
}

if (ngrp > 0) {
newcred->cr_ngroups = ngrp + 1;

bsd_gidset = newcred->cr_groups;
ngrp--;
while (ngrp >= 0) {
	bsd_gidset[ngrp + 1] = linux_gidset[ngrp];
	ngrp--;
}
} else
newcred->cr_ngroups = 1;

setsugid(p);
proc_set_cred(p, newcred);
PROC_UNLOCK(p)__mtx_unlock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (1359
));
crfree(oldcred);
error = 0;
1362out:
free(linux_gidset, M_LINUX);
return (error);
1365}

1367int
1368linux_getgroups(struct thread *td, struct linux_getgroups_args *args)
1369{
struct ucred *cred;
l_gid_t *linux_gidset;
gid_t *bsd_gidset;
int bsd_gidsetsz, ngrp, error;

cred = td->td_ucred;
bsd_gidset = cred->cr_groups;
bsd_gidsetsz = cred->cr_ngroups - 1;

/*
* cr_groups[0] holds egid. Returning the whole set
* here will cause a duplicate. Exclude cr_groups[0]
* to prevent that.
*/

if ((ngrp = args->gidsetsize) == 0) {
td->td_retvaltd_uretoff.tdu_retval[0] = bsd_gidsetsz;
return (0);
}

if (ngrp < bsd_gidsetsz)
return (EINVAL22);

ngrp = 0;
linux_gidset = malloc(bsd_gidsetsz * sizeof(*linux_gidset),
   M_LINUX, M_WAITOK0x0002);
while (ngrp < bsd_gidsetsz) {
linux_gidset[ngrp] = bsd_gidset[ngrp + 1];
ngrp++;
}

error = copyout(linux_gidset, args->grouplist, ngrp * sizeof(l_gid_t));
free(linux_gidset, M_LINUX);
if (error)
return (error);

td->td_retvaltd_uretoff.tdu_retval[0] = ngrp;
return (0);
1408}

1410int
1411linux_setrlimit(struct thread *td, struct linux_setrlimit_args *args)
1412{
struct rlimit bsd_rlim;
struct l_rlimit rlim;
u_int which;
int error;

1418#ifdef DEBUG
if (ldebug(setrlimit)((((const unsigned char *)(linux_debug_map))[(160)/8] & (
1<<((160)%8))) == 0))
printf(ARGS(setrlimit, "%d, %p")"linux(%ld/%ld): ""setrlimit""(""%d, %p"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid,
    args->resource, (void *)args->rlim);
1422#endif

if (args->resource >= LINUX_RLIM_NLIMITS10)
return (EINVAL22);

which = linux_to_bsd_resource[args->resource];
if (which == -1)
return (EINVAL22);

error = copyin(args->rlim, &rlim, sizeof(rlim));
if (error)
return (error);

bsd_rlim.rlim_cur = (rlim_t)rlim.rlim_cur;
bsd_rlim.rlim_max = (rlim_t)rlim.rlim_max;
return (kern_setrlimit(td, which, &bsd_rlim));
1438}

1440#if defined(__i386__) || (defined(__amd64__1) && defined(COMPAT_LINUX32))
1441int
1442linux_old_getrlimit(struct thread *td, struct linux_old_getrlimit_args *args)
1443{
struct l_rlimit rlim;
struct rlimit bsd_rlim;
u_int which;

1448#ifdef DEBUG
if (ldebug(old_getrlimit)((((const unsigned char *)(linux_debug_map))[(LINUX_SYS_linux_old_getrlimit
)/8] & (1<<((LINUX_SYS_linux_old_getrlimit)%8))) ==
 0))
printf(ARGS(old_getrlimit, "%d, %p")"linux(%ld/%ld): ""old_getrlimit""(""%d, %p"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid,
    args->resource, (void *)args->rlim);
1452#endif

if (args->resource >= LINUX_RLIM_NLIMITS10)
return (EINVAL22);

which = linux_to_bsd_resource[args->resource];
if (which == -1)
return (EINVAL22);

lim_rlimit(td, which, &bsd_rlim);

1463#ifdef COMPAT_LINUX32
rlim.rlim_cur = (unsigned int)bsd_rlim.rlim_cur;
if (rlim.rlim_cur == UINT_MAX0xffffffff)
rlim.rlim_cur = INT_MAX0x7fffffff;
rlim.rlim_max = (unsigned int)bsd_rlim.rlim_max;
if (rlim.rlim_max == UINT_MAX0xffffffff)
rlim.rlim_max = INT_MAX0x7fffffff;
1470#else
rlim.rlim_cur = (unsigned long)bsd_rlim.rlim_cur;
if (rlim.rlim_cur == ULONG_MAX0xffffffffffffffff)
rlim.rlim_cur = LONG_MAX0x7fffffffffffffff;
rlim.rlim_max = (unsigned long)bsd_rlim.rlim_max;
if (rlim.rlim_max == ULONG_MAX0xffffffffffffffff)
rlim.rlim_max = LONG_MAX0x7fffffffffffffff;
1477#endif
return (copyout(&rlim, args->rlim, sizeof(rlim)));
1479}
1480#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */

1482int
1483linux_getrlimit(struct thread *td, struct linux_getrlimit_args *args)
1484{
struct l_rlimit rlim;
struct rlimit bsd_rlim;
u_int which;

1489#ifdef DEBUG
if (ldebug(getrlimit)((((const unsigned char *)(linux_debug_map))[(97)/8] & (1
<<((97)%8))) == 0))
printf(ARGS(getrlimit, "%d, %p")"linux(%ld/%ld): ""getrlimit""(""%d, %p"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid,
    args->resource, (void *)args->rlim);
1493#endif

if (args->resource >= LINUX_RLIM_NLIMITS10)
return (EINVAL22);

which = linux_to_bsd_resource[args->resource];
if (which == -1)
return (EINVAL22);

lim_rlimit(td, which, &bsd_rlim);

rlim.rlim_cur = (l_ulong)bsd_rlim.rlim_cur;
rlim.rlim_max = (l_ulong)bsd_rlim.rlim_max;
return (copyout(&rlim, args->rlim, sizeof(rlim)));
1507}

1509int
1510linux_sched_setscheduler(struct thread *td,
  struct linux_sched_setscheduler_args *args)
1512{
struct sched_param sched_param;
struct thread *tdt;
int error, policy;

1517#ifdef DEBUG
if (ldebug(sched_setscheduler)((((const unsigned char *)(linux_debug_map))[(144)/8] & (
1<<((144)%8))) == 0))
printf(ARGS(sched_setscheduler, "%d, %d, %p")"linux(%ld/%ld): ""sched_setscheduler""(""%d, %d, %p"")\n", (
long)td->td_proc->p_pid, (long)td->td_tid,
    args->pid, args->policy, (const void *)args->param);
1521#endif

switch (args->policy) {
case LINUX_SCHED_OTHER0:
policy = SCHED_OTHER2;
break;
case LINUX_SCHED_FIFO1:
policy = SCHED_FIFO1;
break;
case LINUX_SCHED_RR2:
policy = SCHED_RR3;
break;
default:
return (EINVAL22);
}

error = copyin(args->param, &sched_param, sizeof(sched_param));
if (error)
return (error);

tdt = linux_tdfind(td, args->pid, -1);
if (tdt == NULL((void *)0))
return (ESRCH3);

error = kern_sched_setscheduler(td, tdt, policy, &sched_param);
PROC_UNLOCK(tdt->td_proc)__mtx_unlock_flags(&((((&(tdt->td_proc)->p_mtx)
)))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (1546));
return (error);
1548}

1550int
1551linux_sched_getscheduler(struct thread *td,
  struct linux_sched_getscheduler_args *args)
1553{
struct thread *tdt;
int error, policy;

1557#ifdef DEBUG
if (ldebug(sched_getscheduler)((((const unsigned char *)(linux_debug_map))[(145)/8] & (
1<<((145)%8))) == 0))
printf(ARGS(sched_getscheduler, "%d")"linux(%ld/%ld): ""sched_getscheduler""(""%d"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid, args->pid);
1560#endif

tdt = linux_tdfind(td, args->pid, -1);
if (tdt == NULL((void *)0))
return (ESRCH3);

error = kern_sched_getscheduler(td, tdt, &policy);
PROC_UNLOCK(tdt->td_proc)__mtx_unlock_flags(&((((&(tdt->td_proc)->p_mtx)
)))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (1567));

switch (policy) {
case SCHED_OTHER2:
td->td_retvaltd_uretoff.tdu_retval[0] = LINUX_SCHED_OTHER0;
break;
case SCHED_FIFO1:
td->td_retvaltd_uretoff.tdu_retval[0] = LINUX_SCHED_FIFO1;
break;
case SCHED_RR3:
td->td_retvaltd_uretoff.tdu_retval[0] = LINUX_SCHED_RR2;
break;
}
return (error);
1581}

1583int
1584linux_sched_get_priority_max(struct thread *td,
  struct linux_sched_get_priority_max_args *args)
1586{
struct sched_get_priority_max_args bsd;

1589#ifdef DEBUG
if (ldebug(sched_get_priority_max)((((const unsigned char *)(linux_debug_map))[(146)/8] & (
1<<((146)%8))) == 0))
printf(ARGS(sched_get_priority_max, "%d")"linux(%ld/%ld): ""sched_get_priority_max""(""%d"")\n", (long
)td->td_proc->p_pid, (long)td->td_tid, args->policy);
1592#endif

switch (args->policy) {
case LINUX_SCHED_OTHER0:
bsd.policy = SCHED_OTHER2;
break;
case LINUX_SCHED_FIFO1:
bsd.policy = SCHED_FIFO1;
break;
case LINUX_SCHED_RR2:
bsd.policy = SCHED_RR3;
break;
default:
return (EINVAL22);
}
return (sys_sched_get_priority_max(td, &bsd));
1608}

1610int
1611linux_sched_get_priority_min(struct thread *td,
  struct linux_sched_get_priority_min_args *args)
1613{
struct sched_get_priority_min_args bsd;

1616#ifdef DEBUG
if (ldebug(sched_get_priority_min)((((const unsigned char *)(linux_debug_map))[(147)/8] & (
1<<((147)%8))) == 0))
printf(ARGS(sched_get_priority_min, "%d")"linux(%ld/%ld): ""sched_get_priority_min""(""%d"")\n", (long
)td->td_proc->p_pid, (long)td->td_tid, args->policy);
1619#endif

switch (args->policy) {
case LINUX_SCHED_OTHER0:
bsd.policy = SCHED_OTHER2;
break;
case LINUX_SCHED_FIFO1:
bsd.policy = SCHED_FIFO1;
break;
case LINUX_SCHED_RR2:
bsd.policy = SCHED_RR3;
break;
default:
return (EINVAL22);
}
return (sys_sched_get_priority_min(td, &bsd));
1635}

1637#define REBOOT_CAD_ON0x89abcdef	0x89abcdef
1638#define REBOOT_CAD_OFF0	0
1639#define REBOOT_HALT0xcdef0123	0xcdef0123
1640#define REBOOT_RESTART0x01234567	0x01234567
1641#define REBOOT_RESTART20xA1B2C3D4	0xA1B2C3D4
1642#define REBOOT_POWEROFF0x4321FEDC	0x4321FEDC
1643#define REBOOT_MAGIC10xfee1dead	0xfee1dead
1644#define REBOOT_MAGIC20x28121969	0x28121969
1645#define REBOOT_MAGIC2A0x05121996	0x05121996
1646#define REBOOT_MAGIC2B0x16041998	0x16041998

1648int
1649linux_reboot(struct thread *td, struct linux_reboot_args *args)
1650{
struct reboot_args bsd_args;

1653#ifdef DEBUG
if (ldebug(reboot)((((const unsigned char *)(linux_debug_map))[(169)/8] & (
1<<((169)%8))) == 0))
printf(ARGS(reboot, "0x%x")"linux(%ld/%ld): ""reboot""(""0x%x"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid, args->cmd);
1656#endif

if (args->magic1 != REBOOT_MAGIC10xfee1dead)
return (EINVAL22);

switch (args->magic2) {
case REBOOT_MAGIC20x28121969:
case REBOOT_MAGIC2A0x05121996:
case REBOOT_MAGIC2B0x16041998:
break;
default:
return (EINVAL22);
}

switch (args->cmd) {
case REBOOT_CAD_ON0x89abcdef:
case REBOOT_CAD_OFF0:
return (priv_check(td, PRIV_REBOOT8));
case REBOOT_HALT0xcdef0123:
bsd_args.opt = RB_HALT0x008;
break;
case REBOOT_RESTART0x01234567:
case REBOOT_RESTART20xA1B2C3D4:
bsd_args.opt = 0;
break;
case REBOOT_POWEROFF0x4321FEDC:
bsd_args.opt = RB_POWEROFF0x4000;
break;
default:
return (EINVAL22);
}
return (sys_reboot(td, &bsd_args));
1688}


1691/*
* The FreeBSD native getpid(2), getgid(2) and getuid(2) also modify
* td->td_retval[1] when COMPAT_43 is defined. This clobbers registers that
* are assumed to be preserved. The following lightweight syscalls fixes
* this. See also linux_getgid16() and linux_getuid16() in linux_uid16.c
*
* linux_getpid() - MP SAFE
* linux_getgid() - MP SAFE
* linux_getuid() - MP SAFE
*/

1702int
1703linux_getpid(struct thread *td, struct linux_getpid_args *args)
1704{

1706#ifdef DEBUG
if (ldebug(getpid)((((const unsigned char *)(linux_debug_map))[(39)/8] & (1
<<((39)%8))) == 0))
printf(ARGS(getpid, "")"linux(%ld/%ld): ""getpid""("""")\n", (long)td->td_proc->
p_pid, (long)td->td_tid);
1709#endif
td->td_retvaltd_uretoff.tdu_retval[0] = td->td_proc->p_pid;

return (0);
1713}

1715int
1716linux_gettid(struct thread *td, struct linux_gettid_args *args)
1717{
struct linux_emuldata *em;

1720#ifdef DEBUG
if (ldebug(gettid)((((const unsigned char *)(linux_debug_map))[(186)/8] & (
1<<((186)%8))) == 0))
printf(ARGS(gettid, "")"linux(%ld/%ld): ""gettid""("""")\n", (long)td->td_proc->
p_pid, (long)td->td_tid);
1723#endif

em = em_find(td);
KASSERT(em != NULL, ("gettid: emuldata not found.\n"))do { if (__builtin_expect((!(em != ((void *)0))), 0)) panic (
"gettid: emuldata not found.\n"); } while (0);

td->td_retvaltd_uretoff.tdu_retval[0] = em->em_tid;

return (0);
1731}


1734int
1735linux_getppid(struct thread *td, struct linux_getppid_args *args)
1736{

1738#ifdef DEBUG
if (ldebug(getppid)((((const unsigned char *)(linux_debug_map))[(110)/8] & (
1<<((110)%8))) == 0))
printf(ARGS(getppid, "")"linux(%ld/%ld): ""getppid""("""")\n", (long)td->td_proc->
p_pid, (long)td->td_tid);
1741#endif

td->td_retvaltd_uretoff.tdu_retval[0] = kern_getppid(td);
return (0);
1745}

1747int
1748linux_getgid(struct thread *td, struct linux_getgid_args *args)
1749{

1751#ifdef DEBUG
if (ldebug(getgid)((((const unsigned char *)(linux_debug_map))[(104)/8] & (
1<<((104)%8))) == 0))
printf(ARGS(getgid, "")"linux(%ld/%ld): ""getgid""("""")\n", (long)td->td_proc->
p_pid, (long)td->td_tid);
1754#endif

td->td_retvaltd_uretoff.tdu_retval[0] = td->td_ucred->cr_rgid;
return (0);
1758}

1760int
1761linux_getuid(struct thread *td, struct linux_getuid_args *args)
1762{

1764#ifdef DEBUG
if (ldebug(getuid)((((const unsigned char *)(linux_debug_map))[(102)/8] & (
1<<((102)%8))) == 0))
printf(ARGS(getuid, "")"linux(%ld/%ld): ""getuid""("""")\n", (long)td->td_proc->
p_pid, (long)td->td_tid);
1767#endif

td->td_retvaltd_uretoff.tdu_retval[0] = td->td_ucred->cr_ruid;
return (0);
1771}


1774int
1775linux_getsid(struct thread *td, struct linux_getsid_args *args)
1776{
struct getsid_args bsd;

1779#ifdef DEBUG
if (ldebug(getsid)((((const unsigned char *)(linux_debug_map))[(124)/8] & (
1<<((124)%8))) == 0))
printf(ARGS(getsid, "%i")"linux(%ld/%ld): ""getsid""(""%i"")\n", (long)td->td_proc->
p_pid, (long)td->td_tid, args->pid);
1782#endif

bsd.pid = args->pid;
return (sys_getsid(td, &bsd));
1786}

1788int
1789linux_nosys(struct thread *td, struct nosys_args *ignore)
1790{

return (ENOSYS78);
1793}

1795int
1796linux_getpriority(struct thread *td, struct linux_getpriority_args *args)
1797{
struct getpriority_args bsd_args;
int error;

1801#ifdef DEBUG
if (ldebug(getpriority)((((const unsigned char *)(linux_debug_map))[(140)/8] & (
1<<((140)%8))) == 0))
printf(ARGS(getpriority, "%i, %i")"linux(%ld/%ld): ""getpriority""(""%i, %i"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid, args->which, args->who);
1804#endif

bsd_args.which = args->which;
bsd_args.who = args->who;
error = sys_getpriority(td, &bsd_args);
td->td_retvaltd_uretoff.tdu_retval[0] = 20 - td->td_retvaltd_uretoff.tdu_retval[0];
return (error);
1811}

1813int
1814linux_sethostname(struct thread *td, struct linux_sethostname_args *args)
1815{
int name[2];

1818#ifdef DEBUG
if (ldebug(sethostname)((((const unsigned char *)(linux_debug_map))[(170)/8] & (
1<<((170)%8))) == 0))
printf(ARGS(sethostname, "*, %i")"linux(%ld/%ld): ""sethostname""(""*, %i"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid, args->len);
1821#endif

name[0] = CTL_KERN1;
name[1] = KERN_HOSTNAME10;
return (userland_sysctl(td, name, 2, 0, 0, 0, args->hostname,
   args->len, 0, 0));
1827}

1829int
1830linux_setdomainname(struct thread *td, struct linux_setdomainname_args *args)
1831{
int name[2];

1834#ifdef DEBUG
if (ldebug(setdomainname)((((const unsigned char *)(linux_debug_map))[(171)/8] & (
1<<((171)%8))) == 0))
printf(ARGS(setdomainname, "*, %i")"linux(%ld/%ld): ""setdomainname""(""*, %i"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid, args->len);
1837#endif

name[0] = CTL_KERN1;
name[1] = KERN_NISDOMAINNAME22;
return (userland_sysctl(td, name, 2, 0, 0, 0, args->name,
   args->len, 0, 0));
1843}

1845int
1846linux_exit_group(struct thread *td, struct linux_exit_group_args *args)
1847{

1849#ifdef DEBUG
if (ldebug(exit_group)((((const unsigned char *)(linux_debug_map))[(231)/8] & (
1<<((231)%8))) == 0))
printf(ARGS(exit_group, "%i")"linux(%ld/%ld): ""exit_group""(""%i"")\n", (long)td->td_proc
->p_pid, (long)td->td_tid, args->error_code);
1852#endif

LINUX_CTR2(exit_group, "thread(%d) (%d)", td->td_tid,
   args->error_code);

/*
* XXX: we should send a signal to the parent if
* SIGNAL_EXIT_GROUP is set. We ignore that (temporarily?)
* as it doesnt occur often.
*/
exit1(td, args->error_code, 0);
/* NOTREACHED */
1864}

1866#define _LINUX_CAPABILITY_VERSION_10x19980330  0x19980330
1867#define _LINUX_CAPABILITY_VERSION_20x20071026  0x20071026
1868#define _LINUX_CAPABILITY_VERSION_30x20080522  0x20080522

1870struct l_user_cap_header {
l_int	version;
l_int	pid;
1873};

1875struct l_user_cap_data {
l_int	effective;
l_int	permitted;
l_int	inheritable;
1879};

1881int
1882linux_capget(struct thread *td, struct linux_capget_args *uap)
1883{
struct l_user_cap_header luch;
struct l_user_cap_data lucd[2];
int error, u32s;

if (uap->hdrp == NULL((void *)0))
return (EFAULT14);

error = copyin(uap->hdrp, &luch, sizeof(luch));
if (error != 0)
return (error);

switch (luch.version) {
case _LINUX_CAPABILITY_VERSION_10x19980330:
u32s = 1;
break;
case _LINUX_CAPABILITY_VERSION_20x20071026:
case _LINUX_CAPABILITY_VERSION_30x20080522:
u32s = 2;
break;
default:
1904#ifdef DEBUG
if (ldebug(capget)((((const unsigned char *)(linux_debug_map))[(125)/8] & (
1<<((125)%8))) == 0))
	printf(LMSG("invalid capget capability version 0x%x")"linux(%ld/%ld): ""invalid capget capability version 0x%x""\n"
, (long)td->td_proc->p_pid, (long)td->td_tid,
	    luch.version);
1908#endif
luch.version = _LINUX_CAPABILITY_VERSION_10x19980330;
error = copyout(&luch, uap->hdrp, sizeof(luch));
if (error)
	return (error);
return (EINVAL22);
}

if (luch.pid)
return (EPERM1);

if (uap->datap) {
/*
 * The current implementation doesn't support setting
 * a capability (it's essentially a stub) so indicate
 * that no capabilities are currently set or available
 * to request.
 */
memset(&lucd, 0, u32s * sizeof(lucd[0]))__builtin_memset((&lucd), (0), (u32s * sizeof(lucd[0])));
error = copyout(&lucd, uap->datap, u32s * sizeof(lucd[0]));
}

return (error);
1931}

1933int
1934linux_capset(struct thread *td, struct linux_capset_args *uap)
1935{
struct l_user_cap_header luch;
struct l_user_cap_data lucd[2];
int error, i, u32s;

if (uap->hdrp == NULL((void *)0) || uap->datap == NULL((void *)0))
return (EFAULT14);

error = copyin(uap->hdrp, &luch, sizeof(luch));
if (error != 0)
return (error);

switch (luch.version) {
case _LINUX_CAPABILITY_VERSION_10x19980330:
u32s = 1;
break;
case _LINUX_CAPABILITY_VERSION_20x20071026:
case _LINUX_CAPABILITY_VERSION_30x20080522:
u32s = 2;
break;
default:
1956#ifdef DEBUG
if (ldebug(capset)((((const unsigned char *)(linux_debug_map))[(126)/8] & (
1<<((126)%8))) == 0))
	printf(LMSG("invalid capset capability version 0x%x")"linux(%ld/%ld): ""invalid capset capability version 0x%x""\n"
, (long)td->td_proc->p_pid, (long)td->td_tid,
	    luch.version);
1960#endif
luch.version = _LINUX_CAPABILITY_VERSION_10x19980330;
error = copyout(&luch, uap->hdrp, sizeof(luch));
if (error)
	return (error);
return (EINVAL22);
}

if (luch.pid)
return (EPERM1);

error = copyin(uap->datap, &lucd, u32s * sizeof(lucd[0]));
if (error != 0)
return (error);

/* We currently don't support setting any capabilities. */
for (i = 0; i < u32s; i++) {
if (lucd[i].effective || lucd[i].permitted ||
    lucd[i].inheritable) {
	linux_msg(td,
	    "capset[%d] effective=0x%x, permitted=0x%x, "
	    "inheritable=0x%x is not implemented", i,
	    (int)lucd[i].effective, (int)lucd[i].permitted,
	    (int)lucd[i].inheritable);
	return (EPERM1);
}
}

return (0);
1989}

1991int
1992linux_prctl(struct thread *td, struct linux_prctl_args *args)
1993{
int error = 0, max_size;
struct proc *p = td->td_proc;
char comm[LINUX_MAX_COMM_LEN16];
struct linux_emuldata *em;
int pdeath_signal;

2000#ifdef DEBUG
if (ldebug(prctl)((((const unsigned char *)(linux_debug_map))[(157)/8] & (
1<<((157)%8))) == 0))
printf(ARGS(prctl, "%d, %ju, %ju, %ju, %ju")"linux(%ld/%ld): ""prctl""(""%d, %ju, %ju, %ju, %ju"")\n", (long
)td->td_proc->p_pid, (long)td->td_tid, args->option,
    (uintmax_t)args->arg2, (uintmax_t)args->arg3,
    (uintmax_t)args->arg4, (uintmax_t)args->arg5);
2005#endif

switch (args->option) {
case LINUX_PR_SET_PDEATHSIG1:
if (!LINUX_SIG_VALID(args->arg2)((args->arg2) <= 64 && (args->arg2) > 0))
	return (EINVAL22);
em = em_find(td);
KASSERT(em != NULL, ("prctl: emuldata not found.\n"))do { if (__builtin_expect((!(em != ((void *)0))), 0)) panic (
"prctl: emuldata not found.\n"); } while (0);
em->pdeath_signal = args->arg2;
break;
case LINUX_PR_GET_PDEATHSIG2:
em = em_find(td);
KASSERT(em != NULL, ("prctl: emuldata not found.\n"))do { if (__builtin_expect((!(em != ((void *)0))), 0)) panic (
"prctl: emuldata not found.\n"); } while (0);
pdeath_signal = em->pdeath_signal;
error = copyout(&pdeath_signal,
    (void *)(register_t)args->arg2,
    sizeof(pdeath_signal));
break;
case LINUX_PR_GET_KEEPCAPS7:
/*
 * Indicate that we always clear the effective and
 * permitted capability sets when the user id becomes
 * non-zero (actually the capability sets are simply
 * always zero in the current implementation).
 */
td->td_retvaltd_uretoff.tdu_retval[0] = 0;
break;
case LINUX_PR_SET_KEEPCAPS8:
/*
 * Ignore requests to keep the effective and permitted
 * capability sets when the user id becomes non-zero.
 */
break;
case LINUX_PR_SET_NAME15:
/*
 * To be on the safe side we need to make sure to not
 * overflow the size a Linux program expects. We already
 * do this here in the copyin, so that we don't need to
 * check on copyout.
 */
max_size = MIN(sizeof(comm), sizeof(p->p_comm))(((sizeof(comm))<(sizeof(p->p_comm)))?(sizeof(comm)):(sizeof
(p->p_comm)));
error = copyinstr((void *)(register_t)args->arg2, comm,
    max_size, NULL((void *)0));

/* Linux silently truncates the name if it is too long. */
if (error == ENAMETOOLONG63) {
	/*
	 * XXX: copyinstr() isn't documented to populate the
	 * array completely, so do a copyin() to be on the
	 * safe side. This should be changed in case
	 * copyinstr() is changed to guarantee this.
	 */
	error = copyin((void *)(register_t)args->arg2, comm,
	    max_size - 1);
	comm[max_size - 1] = '\0';
}
if (error)
	return (error);

PROC_LOCK(p)__mtx_lock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (2064
));
strlcpy(p->p_comm, comm, sizeof(p->p_comm));
PROC_UNLOCK(p)__mtx_unlock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (2066
));
break;
case LINUX_PR_GET_NAME16:
PROC_LOCK(p)__mtx_lock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (2069
));
strlcpy(comm, p->p_comm, sizeof(comm));
PROC_UNLOCK(p)__mtx_unlock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (2071
));
error = copyout(comm, (void *)(register_t)args->arg2,
    strlen(comm) + 1);
break;
default:
error = EINVAL22;
break;
}

return (error);
2081}

2083int
2084linux_sched_setparam(struct thread *td,
  struct linux_sched_setparam_args *uap)
2086{
struct sched_param sched_param;
struct thread *tdt;
int error;

2091#ifdef DEBUG
if (ldebug(sched_setparam)((((const unsigned char *)(linux_debug_map))[(142)/8] & (
1<<((142)%8))) == 0))
printf(ARGS(sched_setparam, "%d, *")"linux(%ld/%ld): ""sched_setparam""(""%d, *"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid, uap->pid);
2094#endif

error = copyin(uap->param, &sched_param, sizeof(sched_param));
if (error)
return (error);

tdt = linux_tdfind(td, uap->pid, -1);
if (tdt == NULL((void *)0))
return (ESRCH3);

error = kern_sched_setparam(td, tdt, &sched_param);
PROC_UNLOCK(tdt->td_proc)__mtx_unlock_flags(&((((&(tdt->td_proc)->p_mtx)
)))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (2105));
return (error);
2107}

2109int
2110linux_sched_getparam(struct thread *td,
  struct linux_sched_getparam_args *uap)
2112{
struct sched_param sched_param;
struct thread *tdt;
int error;

2117#ifdef DEBUG
if (ldebug(sched_getparam)((((const unsigned char *)(linux_debug_map))[(143)/8] & (
1<<((143)%8))) == 0))
printf(ARGS(sched_getparam, "%d, *")"linux(%ld/%ld): ""sched_getparam""(""%d, *"")\n", (long)td->
td_proc->p_pid, (long)td->td_tid, uap->pid);
2120#endif

tdt = linux_tdfind(td, uap->pid, -1);
if (tdt == NULL((void *)0))
return (ESRCH3);

error = kern_sched_getparam(td, tdt, &sched_param);
PROC_UNLOCK(tdt->td_proc)__mtx_unlock_flags(&((((&(tdt->td_proc)->p_mtx)
)))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (2127));
if (error == 0)
error = copyout(&sched_param, uap->param,
    sizeof(sched_param));
return (error);
2132}

2134/*
* Get affinity of a process.
*/
2137int
2138linux_sched_getaffinity(struct thread *td,
  struct linux_sched_getaffinity_args *args)
2140{
int error;
struct thread *tdt;

2144#ifdef DEBUG
if (ldebug(sched_getaffinity)((((const unsigned char *)(linux_debug_map))[(204)/8] & (
1<<((204)%8))) == 0))
printf(ARGS(sched_getaffinity, "%d, %d, *")"linux(%ld/%ld): ""sched_getaffinity""(""%d, %d, *"")\n", (long
)td->td_proc->p_pid, (long)td->td_tid, args->pid,
    args->len);
2148#endif
if (args->len < sizeof(cpuset_t))
return (EINVAL22);

tdt = linux_tdfind(td, args->pid, -1);
if (tdt == NULL((void *)0))
return (ESRCH3);

PROC_UNLOCK(tdt->td_proc)__mtx_unlock_flags(&((((&(tdt->td_proc)->p_mtx)
)))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (2156));

error = kern_cpuset_getaffinity(td, CPU_LEVEL_WHICH3, CPU_WHICH_TID1,
   tdt->td_tid, sizeof(cpuset_t), (cpuset_t *)args->user_mask_ptr);
if (error == 0)
td->td_retvaltd_uretoff.tdu_retval[0] = sizeof(cpuset_t);

return (error);
2164}

2166/*
*  Set affinity of a process.
*/
2169int
2170linux_sched_setaffinity(struct thread *td,
  struct linux_sched_setaffinity_args *args)
2172{
struct thread *tdt;

2175#ifdef DEBUG
if (ldebug(sched_setaffinity)((((const unsigned char *)(linux_debug_map))[(203)/8] & (
1<<((203)%8))) == 0))
printf(ARGS(sched_setaffinity, "%d, %d, *")"linux(%ld/%ld): ""sched_setaffinity""(""%d, %d, *"")\n", (long
)td->td_proc->p_pid, (long)td->td_tid, args->pid,
    args->len);
2179#endif
if (args->len < sizeof(cpuset_t))
return (EINVAL22);

tdt = linux_tdfind(td, args->pid, -1);
if (tdt == NULL((void *)0))
return (ESRCH3);

PROC_UNLOCK(tdt->td_proc)__mtx_unlock_flags(&((((&(tdt->td_proc)->p_mtx)
)))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (2187));

return (kern_cpuset_setaffinity(td, CPU_LEVEL_WHICH3, CPU_WHICH_TID1,
   tdt->td_tid, sizeof(cpuset_t), (cpuset_t *) args->user_mask_ptr));
2191}

2193struct linux_rlimit64 {
uint64_t	rlim_cur;
uint64_t	rlim_max;
2196};

2198int
2199linux_prlimit64(struct thread *td, struct linux_prlimit64_args *args)
2200{
struct rlimit rlim, nrlim;
struct linux_rlimit64 lrlim;
struct proc *p;
u_int which;
int flags;
int error;

2208#ifdef DEBUG
if (ldebug(prlimit64)((((const unsigned char *)(linux_debug_map))[(302)/8] & (
1<<((302)%8))) == 0))
printf(ARGS(prlimit64, "%d, %d, %p, %p")"linux(%ld/%ld): ""prlimit64""(""%d, %d, %p, %p"")\n", (long)
td->td_proc->p_pid, (long)td->td_tid, args->pid,
    args->resource, (void *)args->new, (void *)args->old);
2212#endif

if (args->resource >= LINUX_RLIM_NLIMITS10)
return (EINVAL22);

which = linux_to_bsd_resource[args->resource];
if (which == -1)
return (EINVAL22);

if (args->new != NULL((void *)0)) {
/*
 * Note. Unlike FreeBSD where rlim is signed 64-bit Linux
 * rlim is unsigned 64-bit. FreeBSD treats negative limits
 * as INFINITY so we do not need a conversion even.
 */
error = copyin(args->new, &nrlim, sizeof(nrlim));
if (error != 0)
	return (error);
}

flags = PGET_HOLD0x00001 | PGET_NOTWEXIT0x00010;
if (args->new != NULL((void *)0))
flags |= PGET_CANDEBUG0x00004;
else
flags |= PGET_CANSEE0x00002;
error = pget(args->pid, flags, &p);
if (error != 0)
return (error);

if (args->old != NULL((void *)0)) {
PROC_LOCK(p)__mtx_lock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (2242
));
lim_rlimit_proc(p, which, &rlim);
PROC_UNLOCK(p)__mtx_unlock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (2244
));
if (rlim.rlim_cur == RLIM_INFINITY((rlim_t)(((__uint64_t)1 << 63) - 1)))
	lrlim.rlim_cur = LINUX_RLIM_INFINITY(~0UL);
else
	lrlim.rlim_cur = rlim.rlim_cur;
if (rlim.rlim_max == RLIM_INFINITY((rlim_t)(((__uint64_t)1 << 63) - 1)))
	lrlim.rlim_max = LINUX_RLIM_INFINITY(~0UL);
else
	lrlim.rlim_max = rlim.rlim_max;
error = copyout(&lrlim, args->old, sizeof(lrlim));
if (error != 0)
	goto out;
}

if (args->new != NULL((void *)0))
error = kern_proc_setrlimit(td, p, which, &nrlim);

out:
PRELE(p)do { __mtx_lock_flags(&((((&((p))->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (2262
)); do { __mtx_assert(&(((&(((p)))->p_mtx)))->mtx_lock
, (((0x00000004))), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (2262)); do { do { if (__builtin_expect((!(((p))->p_lock
 > 0)), 0)) panic ("process %p not held", (p)); } while (0
); } while (0); (--((p))->p_lock); if ((((p))->p_flag &
 0x02000) && ((p))->p_lock == 0) wakeup(&((p))
->p_lock); } while (0); __mtx_unlock_flags(&((((&(
(p))->p_mtx))))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (2262)); } while (0);
return (error);
2264}

2266int
2267linux_pselect6(struct thread *td, struct linux_pselect6_args *args)
2268{
struct timeval utv, tv0, tv1, *tvp;
struct l_pselect6arg lpse6;
struct l_timespec lts;
struct timespec uts;
l_sigset_t l_ss;
sigset_t *ssp;
sigset_t ss;
int error;

ssp = NULL((void *)0);
if (args->sig != NULL((void *)0)) {
error = copyin(args->sig, &lpse6, sizeof(lpse6));
if (error != 0)
	return (error);
if (lpse6.ss_len != sizeof(l_ss))
	return (EINVAL22);
if (lpse6.ss != 0) {
	error = copyin(PTRIN(lpse6.ss)(void *)(lpse6.ss), &l_ss,
	    sizeof(l_ss));
	if (error != 0)
		return (error);
	linux_to_bsd_sigset(&l_ss, &ss);
	ssp = &ss;
}
}

/*
* Currently glibc changes nanosecond number to microsecond.
* This mean losing precision but for now it is hardly seen.
*/
if (args->tsp != NULL((void *)0)) {
error = copyin(args->tsp, &lts, sizeof(lts));
if (error != 0)
	return (error);
error = linux_to_native_timespec(&uts, &lts);
if (error != 0)
	return (error);

TIMESPEC_TO_TIMEVAL(&utv, &uts)do { (&utv)->tv_sec = (&uts)->tv_sec; (&utv
)->tv_usec = (&uts)->tv_nsec / 1000; } while (0);
if (itimerfix(&utv))
	return (EINVAL22);

microtime(&tv0);
tvp = &utv;
} else
tvp = NULL((void *)0);

error = kern_pselect(td, args->nfds, args->readfds, args->writefds,
   args->exceptfds, tvp, ssp, LINUX_NFDBITSsizeof(l_fd_mask) * 8);

if (error == 0 && args->tsp != NULL((void *)0)) {
if (td->td_retvaltd_uretoff.tdu_retval[0] != 0) {
	/*
	 * Compute how much time was left of the timeout,
	 * by subtracting the current time and the time
	 * before we started the call, and subtracting
	 * that result from the user-supplied value.
	 */

	microtime(&tv1);
	timevalsub(&tv1, &tv0);
	timevalsub(&utv, &tv1);
	if (utv.tv_sec < 0)
		timevalclear(&utv)((&utv)->tv_sec = (&utv)->tv_usec = 0);
} else
	timevalclear(&utv)((&utv)->tv_sec = (&utv)->tv_usec = 0);

TIMEVAL_TO_TIMESPEC(&utv, &uts)do { (&uts)->tv_sec = (&utv)->tv_sec; (&uts
)->tv_nsec = (&utv)->tv_usec * 1000; } while (0);

error = native_to_linux_timespec(&lts, &uts);
if (error == 0)
	error = copyout(&lts, args->tsp, sizeof(lts));
}

return (error);
2344}

2346int
2347linux_ppoll(struct thread *td, struct linux_ppoll_args *args)
2348{
struct timespec ts0, ts1;
struct l_timespec lts;
struct timespec uts, *tsp;
l_sigset_t l_ss;
sigset_t *ssp;
sigset_t ss;
int error;

if (args->sset != NULL((void *)0)) {
if (args->ssize != sizeof(l_ss))
	return (EINVAL22);
error = copyin(args->sset, &l_ss, sizeof(l_ss));
if (error)
	return (error);
linux_to_bsd_sigset(&l_ss, &ss);
ssp = &ss;
} else
ssp = NULL((void *)0);
if (args->tsp != NULL((void *)0)) {
error = copyin(args->tsp, &lts, sizeof(lts));
if (error)
	return (error);
error = linux_to_native_timespec(&uts, &lts);
if (error != 0)
	return (error);

nanotime(&ts0);
tsp = &uts;
} else
tsp = NULL((void *)0);

error = kern_poll(td, args->fds, args->nfds, tsp, ssp);

if (error == 0 && args->tsp != NULL((void *)0)) {
if (td->td_retvaltd_uretoff.tdu_retval[0]) {
	nanotime(&ts1);
	timespecsub(&ts1, &ts0, &ts1)do { (&ts1)->tv_sec = (&ts1)->tv_sec - (&ts0
)->tv_sec; (&ts1)->tv_nsec = (&ts1)->tv_nsec
 - (&ts0)->tv_nsec; if ((&ts1)->tv_nsec < 0)
 { (&ts1)->tv_sec--; (&ts1)->tv_nsec += 1000000000L
; } } while (0);
	timespecsub(&uts, &ts1, &uts)do { (&uts)->tv_sec = (&uts)->tv_sec - (&ts1
)->tv_sec; (&uts)->tv_nsec = (&uts)->tv_nsec
 - (&ts1)->tv_nsec; if ((&uts)->tv_nsec < 0)
 { (&uts)->tv_sec--; (&uts)->tv_nsec += 1000000000L
; } } while (0);
	if (uts.tv_sec < 0)
		timespecclear(&uts)((&uts)->tv_sec = (&uts)->tv_nsec = 0);
} else
	timespecclear(&uts)((&uts)->tv_sec = (&uts)->tv_nsec = 0);

error = native_to_linux_timespec(&lts, &uts);
if (error == 0)
	error = copyout(&lts, args->tsp, sizeof(lts));
}

return (error);
2398}

2400#if defined(DEBUG) || defined(KTR)
2401/* XXX: can be removed when every ldebug(...) and KTR stuff are removed. */

2403#ifdef COMPAT_LINUX32
2404#define	L_MAXSYSCALL	LINUX32_SYS_MAXSYSCALL
2405#else
2406#define	L_MAXSYSCALL	LINUX_SYS_MAXSYSCALL333
2407#endif

2409u_char linux_debug_map[howmany(L_MAXSYSCALL, sizeof(u_char))(((L_MAXSYSCALL)+((sizeof(u_char))-1))/(sizeof(u_char)))];

2411static int
2412linux_debug(int syscall, int toggle, int global)
2413{

if (global) {
char c = toggle ? 0 : 0xff;

memset(linux_debug_map, c, sizeof(linux_debug_map))__builtin_memset((linux_debug_map), (c), (sizeof(linux_debug_map
)));
return (0);
}
if (syscall < 0 || syscall >= L_MAXSYSCALL)
return (EINVAL22);
if (toggle)
clrbit(linux_debug_map, syscall)(((unsigned char *)(linux_debug_map))[(syscall)/8] &= ~(1
<<((syscall)%8)));
else
setbit(linux_debug_map, syscall)(((unsigned char *)(linux_debug_map))[(syscall)/8] |= 1<<
((syscall)%8));
return (0);
2428}
2429#undef L_MAXSYSCALL

2431/*
* Usage: sysctl linux.debug=<syscall_nr>.<0/1>
*
*    E.g.: sysctl linux.debug=21.0
*
* As a special case, syscall "all" will apply to all syscalls globally.
*/
2438#define LINUX_MAX_DEBUGSTR	16
2439int
2440linux_sysctl_debug(SYSCTL_HANDLER_ARGSstruct sysctl_oid *oidp, void *arg1, intmax_t arg2, struct sysctl_req
 *req)
2441{
char value[LINUX_MAX_DEBUGSTR], *p;
int error, sysc, toggle;
int global = 0;

value[0] = '\0';
error = sysctl_handle_string(oidp, value, LINUX_MAX_DEBUGSTR, req);
if (error || req->newptr == NULL((void *)0))
return (error);
for (p = value; *p != '\0' && *p != '.'; p++);
if (*p == '\0')
return (EINVAL22);
*p++ = '\0';
sysc = strtol(value, NULL((void *)0), 0);
toggle = strtol(p, NULL((void *)0), 0);
if (strcmp(value, "all") == 0)
global = 1;
error = linux_debug(sysc, toggle, global);
return (error);
2460}

2462#endif /* DEBUG || KTR */

2464int
2465linux_sched_rr_get_interval(struct thread *td,
  struct linux_sched_rr_get_interval_args *uap)
2467{
struct timespec ts;
struct l_timespec lts;
struct thread *tdt;
int error;

/*
* According to man in case the invalid pid specified
* EINVAL should be returned.
*/
if (uap->pid < 0)
return (EINVAL22);

tdt = linux_tdfind(td, uap->pid, -1);
if (tdt == NULL((void *)0))
return (ESRCH3);

error = kern_sched_rr_get_interval_td(td, tdt, &ts);
PROC_UNLOCK(tdt->td_proc)__mtx_unlock_flags(&((((&(tdt->td_proc)->p_mtx)
)))->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (2485));
if (error != 0)
return (error);
error = native_to_linux_timespec(&lts, &ts);
if (error != 0)
return (error);
return (copyout(&lts, uap->interval, sizeof(lts)));
2492}

2494/*
* In case when the Linux thread is the initial thread in
* the thread group thread id is equal to the process id.
* Glibc depends on this magic (assert in pthread_getattr_np.c).
*/
2499struct thread *
2500linux_tdfind(struct thread *td, lwpid_t tid, pid_t pid)
2501{
struct linux_emuldata *em;
struct thread *tdt;
struct proc *p;

tdt = NULL((void *)0);
if (tid == 0 || tid == td->td_tid) {
tdt = td;
PROC_LOCK(tdt->td_proc)__mtx_lock_flags(&((((&(tdt->td_proc)->p_mtx)))
)->mtx_lock, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"
), (2509));
} else if (tid > PID_MAX99999)
tdt = tdfind(tid, pid);
else {
/*
 * Initial thread where the tid equal to the pid.
 */
p = pfind(tid);
if (p != NULL((void *)0)) {
	if (SV_PROC_ABI(p)((p)->p_sysent->sv_flags & 0xff) != SV_ABI_LINUX3) {
		/*
		 * p is not a Linuxulator process.
		 */
		PROC_UNLOCK(p)__mtx_unlock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (2522
));
		return (NULL((void *)0));
	}
	FOREACH_THREAD_IN_PROC(p, tdt)for (((tdt)) = (((&(p)->p_threads))->tqh_first); ((
tdt)); ((tdt)) = ((((tdt)))->td_plist.tqe_next)) {
		em = em_find(tdt);
		if (tid == em->em_tid)
			return (tdt);
	}
	PROC_UNLOCK(p)__mtx_unlock_flags(&((((&(p)->p_mtx))))->mtx_lock
, ((0)), ("/root/freebsd/sys/compat/linux/linux_misc.c"), (2530
));
}
return (NULL((void *)0));
}

return (tdt);
2536}

2538void
2539linux_to_bsd_waitopts(int options, int *bsdopts)
2540{

if (options & LINUX_WNOHANG0x00000001)
*bsdopts |= WNOHANG1;
if (options & LINUX_WUNTRACED0x00000002)
*bsdopts |= WUNTRACED2;
if (options & LINUX_WEXITED0x00000004)
*bsdopts |= WEXITED16;
if (options & LINUX_WCONTINUED0x00000008)
*bsdopts |= WCONTINUED4;
if (options & LINUX_WNOWAIT0x01000000)
*bsdopts |= WNOWAIT8;

if (options & __WCLONE0x80000000)
*bsdopts |= WLINUXCLONE0x80000000;
2555}

2557int
2558linux_getrandom(struct thread *td, struct linux_getrandom_args *args)
2559{
struct uio uio;
struct iovec iov;
int error;

if (args->flags & ~(LINUX_GRND_NONBLOCK0x0001|LINUX_GRND_RANDOM0x0002))
return (EINVAL22);
if (args->count > INT_MAX0x7fffffff)
args->count = INT_MAX0x7fffffff;

iov.iov_base = args->buf;
iov.iov_len = args->count;

uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
uio.uio_resid = iov.iov_len;
uio.uio_segflg = UIO_USERSPACE;
uio.uio_rw = UIO_READ;
uio.uio_td = td;

error = read_random_uio(&uio, args->flags & LINUX_GRND_NONBLOCK0x0001);
if (error == 0)
td->td_retvaltd_uretoff.tdu_retval[0] = args->count - uio.uio_resid;
return (error);
2583}

2585int
2586linux_mincore(struct thread *td, struct linux_mincore_args *args)
2587{

/* Needs to be page-aligned */
if (args->start & PAGE_MASK((1<<12)-1))
return (EINVAL22);
return (kern_mincore(td, args->start, args->len, args->vec));
2593}