linux/arch/mips/kernel/linux32.c

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/*
* Conversion between 32-bit and 64-bit native system calls.
*
* Copyright (C) 2000 Silicon Graphics, Inc.
* Written by Ulf Carlsson (ulfc@engr.sgi.com)
* sys32_execve from ia64/ia32 code, Feb 2000, Kanoj Sarcar (kanoj@sgi.com)
*/
#include <linux/compiler.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/file.h>
#include <linux/smp_lock.h>
#include <linux/highuid.h>
#include <linux/dirent.h>
#include <linux/resource.h>
#include <linux/highmem.h>
#include <linux/time.h>
#include <linux/times.h>
#include <linux/poll.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/filter.h>
#include <linux/shm.h>
#include <linux/sem.h>
#include <linux/msg.h>
#include <linux/icmpv6.h>
#include <linux/syscalls.h>
#include <linux/sysctl.h>
#include <linux/utime.h>
#include <linux/utsname.h>
#include <linux/personality.h>
#include <linux/dnotify.h>
#include <linux/module.h>
#include <linux/binfmts.h>
#include <linux/security.h>
#include <linux/compat.h>
#include <linux/vfs.h>
#include <net/sock.h>
#include <net/scm.h>
#include <asm/ipc.h>
#include <asm/sim.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
#include <asm/mman.h>
/* Use this to get at 32-bit user passed pointers. */
/* A() macro should be used for places where you e.g.
have some internal variable u32 and just want to get
rid of a compiler warning. AA() has to be used in
places where you want to convert a function argument
to 32bit pointer or when you e.g. access pt_regs
structure and want to consider 32bit registers only.
*/
#define A(__x) ((unsigned long)(__x))
#define AA(__x) ((unsigned long)((int)__x))
#ifdef __MIPSEB__
#define merge_64(r1,r2) ((((r1) & 0xffffffffUL) << 32) + ((r2) & 0xffffffffUL))
#endif
#ifdef __MIPSEL__
#define merge_64(r1,r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL))
#endif
/*
* Revalidate the inode. This is required for proper NFS attribute caching.
*/
int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
{
struct compat_stat tmp;
if (!new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev))
return -EOVERFLOW;
memset(&tmp, 0, sizeof(tmp));
tmp.st_dev = new_encode_dev(stat->dev);
tmp.st_ino = stat->ino;
[PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers These patches make the kernel pass 64-bit inode numbers internally when communicating to userspace, even on a 32-bit system. They are required because some filesystems have intrinsic 64-bit inode numbers: NFS3+ and XFS for example. The 64-bit inode numbers are then propagated to userspace automatically where the arch supports it. Problems have been seen with userspace (eg: ld.so) using the 64-bit inode number returned by stat64() or getdents64() to differentiate files, and failing because the 64-bit inode number space was compressed to 32-bits, and so overlaps occur. This patch: Make filldir_t take a 64-bit inode number and struct kstat carry a 64-bit inode number so that 64-bit inode numbers can be passed back to userspace. The stat functions then returns the full 64-bit inode number where available and where possible. If it is not possible to represent the inode number supplied by the filesystem in the field provided by userspace, then error EOVERFLOW will be issued. Similarly, the getdents/readdir functions now pass the full 64-bit inode number to userspace where possible, returning EOVERFLOW instead when a directory entry is encountered that can't be properly represented. Note that this means that some inodes will not be stat'able on a 32-bit system with old libraries where they were before - but it does mean that there will be no ambiguity over what a 32-bit inode number refers to. Note similarly that directory scans may be cut short with an error on a 32-bit system with old libraries where the scan would work before for the same reasons. It is judged unlikely that this situation will occur because modern glibc uses 64-bit capable versions of stat and getdents class functions exclusively, and that older systems are unlikely to encounter unrepresentable inode numbers anyway. [akpm: alpha build fix] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03 08:13:46 +00:00
if (sizeof(tmp.st_ino) < sizeof(stat->ino) && tmp.st_ino != stat->ino)
return -EOVERFLOW;
tmp.st_mode = stat->mode;
tmp.st_nlink = stat->nlink;
SET_UID(tmp.st_uid, stat->uid);
SET_GID(tmp.st_gid, stat->gid);
tmp.st_rdev = new_encode_dev(stat->rdev);
tmp.st_size = stat->size;
tmp.st_atime = stat->atime.tv_sec;
tmp.st_mtime = stat->mtime.tv_sec;
tmp.st_ctime = stat->ctime.tv_sec;
#ifdef STAT_HAVE_NSEC
tmp.st_atime_nsec = stat->atime.tv_nsec;
tmp.st_mtime_nsec = stat->mtime.tv_nsec;
tmp.st_ctime_nsec = stat->ctime.tv_nsec;
#endif
tmp.st_blocks = stat->blocks;
tmp.st_blksize = stat->blksize;
return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
}
asmlinkage unsigned long
sys32_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, unsigned long fd, unsigned long pgoff)
{
struct file * file = NULL;
unsigned long error;
error = -EINVAL;
if (pgoff & (~PAGE_MASK >> 12))
goto out;
pgoff >>= PAGE_SHIFT-12;
if (!(flags & MAP_ANONYMOUS)) {
error = -EBADF;
file = fget(fd);
if (!file)
goto out;
}
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
down_write(&current->mm->mmap_sem);
error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
up_write(&current->mm->mmap_sem);
if (file)
fput(file);
out:
return error;
}
asmlinkage int sys_truncate64(const char __user *path, unsigned int high,
unsigned int low)
{
if ((int)high < 0)
return -EINVAL;
return sys_truncate(path, ((long) high << 32) | low);
}
asmlinkage int sys_ftruncate64(unsigned int fd, unsigned int high,
unsigned int low)
{
if ((int)high < 0)
return -EINVAL;
return sys_ftruncate(fd, ((long) high << 32) | low);
}
/*
* sys_execve() executes a new program.
*/
asmlinkage int sys32_execve(nabi_no_regargs struct pt_regs regs)
{
int error;
char * filename;
filename = getname(compat_ptr(regs.regs[4]));
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
error = compat_do_execve(filename, compat_ptr(regs.regs[5]),
compat_ptr(regs.regs[6]), &regs);
putname(filename);
out:
return error;
}
asmlinkage long
sysn32_waitid(int which, compat_pid_t pid,
siginfo_t __user *uinfo, int options,
struct compat_rusage __user *uru)
{
struct rusage ru;
long ret;
mm_segment_t old_fs = get_fs();
int si_signo;
if (!access_ok(VERIFY_WRITE, uinfo, sizeof(*uinfo)))
return -EFAULT;
set_fs (KERNEL_DS);
ret = sys_waitid(which, pid, uinfo, options,
uru ? (struct rusage __user *) &ru : NULL);
set_fs (old_fs);
if (__get_user(si_signo, &uinfo->si_signo))
return -EFAULT;
if (ret < 0 || si_signo == 0)
return ret;
if (uru)
ret = put_compat_rusage(&ru, uru);
return ret;
}
struct sysinfo32 {
s32 uptime;
u32 loads[3];
u32 totalram;
u32 freeram;
u32 sharedram;
u32 bufferram;
u32 totalswap;
u32 freeswap;
u16 procs;
u32 totalhigh;
u32 freehigh;
u32 mem_unit;
char _f[8];
};
asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
{
struct sysinfo s;
int ret, err;
mm_segment_t old_fs = get_fs ();
set_fs (KERNEL_DS);
ret = sys_sysinfo((struct sysinfo __user *)&s);
set_fs (old_fs);
err = put_user (s.uptime, &info->uptime);
err |= __put_user (s.loads[0], &info->loads[0]);
err |= __put_user (s.loads[1], &info->loads[1]);
err |= __put_user (s.loads[2], &info->loads[2]);
err |= __put_user (s.totalram, &info->totalram);
err |= __put_user (s.freeram, &info->freeram);
err |= __put_user (s.sharedram, &info->sharedram);
err |= __put_user (s.bufferram, &info->bufferram);
err |= __put_user (s.totalswap, &info->totalswap);
err |= __put_user (s.freeswap, &info->freeswap);
err |= __put_user (s.procs, &info->procs);
err |= __put_user (s.totalhigh, &info->totalhigh);
err |= __put_user (s.freehigh, &info->freehigh);
err |= __put_user (s.mem_unit, &info->mem_unit);
if (err)
return -EFAULT;
return ret;
}
#define RLIM_INFINITY32 0x7fffffff
#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
struct rlimit32 {
int rlim_cur;
int rlim_max;
};
#ifdef __MIPSEB__
asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
int length_hi, int length_lo)
#endif
#ifdef __MIPSEL__
asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
int length_lo, int length_hi)
#endif
{
loff_t length;
length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
return sys_truncate(path, length);
}
#ifdef __MIPSEB__
asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
int length_hi, int length_lo)
#endif
#ifdef __MIPSEL__
asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
int length_lo, int length_hi)
#endif
{
loff_t length;
length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
return sys_ftruncate(fd, length);
}
static inline long
get_tv32(struct timeval *o, struct compat_timeval __user *i)
{
return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
(__get_user(o->tv_sec, &i->tv_sec) |
__get_user(o->tv_usec, &i->tv_usec)));
}
static inline long
put_tv32(struct compat_timeval __user *o, struct timeval *i)
{
return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
(__put_user(i->tv_sec, &o->tv_sec) |
__put_user(i->tv_usec, &o->tv_usec)));
}
extern struct timezone sys_tz;
asmlinkage int
sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
{
if (tv) {
struct timeval ktv;
do_gettimeofday(&ktv);
if (put_tv32(tv, &ktv))
return -EFAULT;
}
if (tz) {
if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
return -EFAULT;
}
return 0;
}
static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
{
long usec;
if (!access_ok(VERIFY_READ, i, sizeof(*i)))
return -EFAULT;
if (__get_user(o->tv_sec, &i->tv_sec))
return -EFAULT;
if (__get_user(usec, &i->tv_usec))
return -EFAULT;
o->tv_nsec = usec * 1000;
return 0;
}
asmlinkage int
sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
{
struct timespec kts;
struct timezone ktz;
if (tv) {
if (get_ts32(&kts, tv))
return -EFAULT;
}
if (tz) {
if (copy_from_user(&ktz, tz, sizeof(ktz)))
return -EFAULT;
}
return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
}
asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
unsigned int offset_low, loff_t __user * result,
unsigned int origin)
{
return sys_llseek(fd, offset_high, offset_low, result, origin);
}
/* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
lseek back to original location. They fail just like lseek does on
non-seekable files. */
asmlinkage ssize_t sys32_pread(unsigned int fd, char __user * buf,
size_t count, u32 unused, u64 a4, u64 a5)
{
return sys_pread64(fd, buf, count, merge_64(a4, a5));
}
asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char __user * buf,
size_t count, u32 unused, u64 a4, u64 a5)
{
return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
}
asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
struct compat_timespec __user *interval)
{
struct timespec t;
int ret;
mm_segment_t old_fs = get_fs ();
set_fs (KERNEL_DS);
ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
set_fs (old_fs);
if (put_user (t.tv_sec, &interval->tv_sec) ||
__put_user (t.tv_nsec, &interval->tv_nsec))
return -EFAULT;
return ret;
}
asmlinkage long
sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
{
int version, err;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
switch (call) {
case SEMOP:
/* struct sembuf is the same on 32 and 64bit :)) */
err = sys_semtimedop(first, compat_ptr(ptr), second, NULL);
break;
case SEMTIMEDOP:
err = compat_sys_semtimedop(first, compat_ptr(ptr), second,
compat_ptr(fifth));
break;
case SEMGET:
err = sys_semget(first, second, third);
break;
case SEMCTL:
err = compat_sys_semctl(first, second, third, compat_ptr(ptr));
break;
case MSGSND:
err = compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
break;
case MSGRCV:
err = compat_sys_msgrcv(first, second, fifth, third,
version, compat_ptr(ptr));
break;
case MSGGET:
err = sys_msgget((key_t) first, second);
break;
case MSGCTL:
err = compat_sys_msgctl(first, second, compat_ptr(ptr));
break;
case SHMAT:
err = compat_sys_shmat(first, second, third, version,
compat_ptr(ptr));
break;
case SHMDT:
err = sys_shmdt(compat_ptr(ptr));
break;
case SHMGET:
err = sys_shmget(first, (unsigned)second, third);
break;
case SHMCTL:
err = compat_sys_shmctl(first, second, compat_ptr(ptr));
break;
default:
err = -EINVAL;
break;
}
return err;
}
#ifdef CONFIG_MIPS32_N32
asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, union semun arg)
{
/* compat_sys_semctl expects a pointer to union semun */
u32 __user *uptr = compat_alloc_user_space(sizeof(u32));
if (put_user(ptr_to_compat(arg.__pad), uptr))
return -EFAULT;
return compat_sys_semctl(semid, semnum, cmd, uptr);
}
#endif
struct sysctl_args32
{
compat_caddr_t name;
int nlen;
compat_caddr_t oldval;
compat_caddr_t oldlenp;
compat_caddr_t newval;
compat_size_t newlen;
unsigned int __unused[4];
};
#ifdef CONFIG_SYSCTL_SYSCALL
asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
{
struct sysctl_args32 tmp;
int error;
size_t oldlen;
size_t __user *oldlenp = NULL;
unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
if (copy_from_user(&tmp, args, sizeof(tmp)))
return -EFAULT;
if (tmp.oldval && tmp.oldlenp) {
/* Duh, this is ugly and might not work if sysctl_args
is in read-only memory, but do_sysctl does indirectly
a lot of uaccess in both directions and we'd have to
basically copy the whole sysctl.c here, and
glibc's __sysctl uses rw memory for the structure
anyway. */
if (get_user(oldlen, (u32 __user *)A(tmp.oldlenp)) ||
put_user(oldlen, (size_t __user *)addr))
return -EFAULT;
oldlenp = (size_t __user *)addr;
}
lock_kernel();
error = do_sysctl((int __user *)A(tmp.name), tmp.nlen, (void __user *)A(tmp.oldval),
oldlenp, (void __user *)A(tmp.newval), tmp.newlen);
unlock_kernel();
if (oldlenp) {
if (!error) {
if (get_user(oldlen, (size_t __user *)addr) ||
put_user(oldlen, (u32 __user *)A(tmp.oldlenp)))
error = -EFAULT;
}
copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
}
return error;
}
#endif /* CONFIG_SYSCTL_SYSCALL */
asmlinkage long sys32_newuname(struct new_utsname __user * name)
{
int ret = 0;
down_read(&uts_sem);
if (copy_to_user(name, utsname(), sizeof *name))
ret = -EFAULT;
up_read(&uts_sem);
if (current->personality == PER_LINUX32 && !ret)
if (copy_to_user(name->machine, "mips\0\0\0", 8))
ret = -EFAULT;
return ret;
}
asmlinkage int sys32_personality(unsigned long personality)
{
int ret;
personality &= 0xffffffff;
if (personality(current->personality) == PER_LINUX32 &&
personality == PER_LINUX)
personality = PER_LINUX32;
ret = sys_personality(personality);
if (ret == PER_LINUX32)
ret = PER_LINUX;
return ret;
}
/* ustat compatibility */
struct ustat32 {
compat_daddr_t f_tfree;
compat_ino_t f_tinode;
char f_fname[6];
char f_fpack[6];
};
extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
{
int err;
struct ustat tmp;
struct ustat32 tmp32;
mm_segment_t old_fs = get_fs();
set_fs(KERNEL_DS);
err = sys_ustat(dev, (struct ustat __user *)&tmp);
set_fs (old_fs);
if (err)
goto out;
memset(&tmp32,0,sizeof(struct ustat32));
tmp32.f_tfree = tmp.f_tfree;
tmp32.f_tinode = tmp.f_tinode;
err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
out:
return err;
}
asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
s32 count)
{
mm_segment_t old_fs = get_fs();
int ret;
off_t of;
if (offset && get_user(of, offset))
return -EFAULT;
set_fs(KERNEL_DS);
ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count);
set_fs(old_fs);
if (offset && put_user(of, offset))
return -EFAULT;
return ret;
}
asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
size_t count)
{
return sys_readahead(fd, merge_64(a2, a3), count);
}
asmlinkage long sys32_sync_file_range(int fd, int __pad,
unsigned long a2, unsigned long a3,
unsigned long a4, unsigned long a5,
int flags)
{
return sys_sync_file_range(fd,
merge_64(a2, a3), merge_64(a4, a5),
flags);
}
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned int))
static unsigned char socketcall_nargs[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
#undef AL
/*
* System call vectors.
*
* Argument checking cleaned up. Saved 20% in size.
* This function doesn't need to set the kernel lock because
* it is set by the callees.
*/
asmlinkage long sys32_socketcall(int call, unsigned int __user *args32)
{
unsigned int a[6];
unsigned int a0,a1;
int err;
extern asmlinkage long sys_socket(int family, int type, int protocol);
extern asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
extern asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen);
extern asmlinkage long sys_listen(int fd, int backlog);
extern asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen);
extern asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
extern asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
extern asmlinkage long sys_socketpair(int family, int type, int protocol, int __user *usockvec);
extern asmlinkage long sys_send(int fd, void __user * buff, size_t len, unsigned flags);
extern asmlinkage long sys_sendto(int fd, void __user * buff, size_t len, unsigned flags,
struct sockaddr __user *addr, int addr_len);
extern asmlinkage long sys_recv(int fd, void __user * ubuf, size_t size, unsigned flags);
extern asmlinkage long sys_recvfrom(int fd, void __user * ubuf, size_t size, unsigned flags,
struct sockaddr __user *addr, int __user *addr_len);
extern asmlinkage long sys_shutdown(int fd, int how);
extern asmlinkage long sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen);
extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int __user *optlen);
extern asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
extern asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flags);
if(call<1||call>SYS_RECVMSG)
return -EINVAL;
/* copy_from_user should be SMP safe. */
if (copy_from_user(a, args32, socketcall_nargs[call]))
return -EFAULT;
a0=a[0];
a1=a[1];
switch(call)
{
case SYS_SOCKET:
err = sys_socket(a0,a1,a[2]);
break;
case SYS_BIND:
err = sys_bind(a0,(struct sockaddr __user *)A(a1), a[2]);
break;
case SYS_CONNECT:
err = sys_connect(a0, (struct sockaddr __user *)A(a1), a[2]);
break;
case SYS_LISTEN:
err = sys_listen(a0,a1);
break;
case SYS_ACCEPT:
err = sys_accept(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
break;
case SYS_GETSOCKNAME:
err = sys_getsockname(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
break;
case SYS_GETPEERNAME:
err = sys_getpeername(a0, (struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
break;
case SYS_SOCKETPAIR:
err = sys_socketpair(a0,a1, a[2], (int __user *)A(a[3]));
break;
case SYS_SEND:
err = sys_send(a0, (void __user *)A(a1), a[2], a[3]);
break;
case SYS_SENDTO:
err = sys_sendto(a0,(void __user *)A(a1), a[2], a[3],
(struct sockaddr __user *)A(a[4]), a[5]);
break;
case SYS_RECV:
err = sys_recv(a0, (void __user *)A(a1), a[2], a[3]);
break;
case SYS_RECVFROM:
err = sys_recvfrom(a0, (void __user *)A(a1), a[2], a[3],
(struct sockaddr __user *)A(a[4]), (int __user *)A(a[5]));
break;
case SYS_SHUTDOWN:
err = sys_shutdown(a0,a1);
break;
case SYS_SETSOCKOPT:
err = sys_setsockopt(a0, a1, a[2], (char __user *)A(a[3]), a[4]);
break;
case SYS_GETSOCKOPT:
err = sys_getsockopt(a0, a1, a[2], (char __user *)A(a[3]), (int __user *)A(a[4]));
break;
case SYS_SENDMSG:
err = sys_sendmsg(a0, (struct msghdr __user *) A(a1), a[2]);
break;
case SYS_RECVMSG:
err = sys_recvmsg(a0, (struct msghdr __user *) A(a1), a[2]);
break;
default:
err = -EINVAL;
break;
}
return err;
}
struct sigevent32 {
u32 sigev_value;
u32 sigev_signo;
u32 sigev_notify;
u32 payload[(64 / 4) - 3];
};
extern asmlinkage long
sys_timer_create(clockid_t which_clock,
struct sigevent __user *timer_event_spec,
timer_t __user * created_timer_id);
long
sys32_timer_create(u32 clock, struct sigevent32 __user *se32, timer_t __user *timer_id)
{
struct sigevent __user *p = NULL;
if (se32) {
struct sigevent se;
p = compat_alloc_user_space(sizeof(struct sigevent));
memset(&se, 0, sizeof(struct sigevent));
if (get_user(se.sigev_value.sival_int, &se32->sigev_value) ||
__get_user(se.sigev_signo, &se32->sigev_signo) ||
__get_user(se.sigev_notify, &se32->sigev_notify) ||
__copy_from_user(&se._sigev_un._pad, &se32->payload,
sizeof(se32->payload)) ||
copy_to_user(p, &se, sizeof(se)))
return -EFAULT;
}
return sys_timer_create(clock, p, timer_id);
}
save_static_function(sys32_clone);
__attribute_used__ noinline static int
_sys32_clone(nabi_no_regargs struct pt_regs regs)
{
unsigned long clone_flags;
unsigned long newsp;
int __user *parent_tidptr, *child_tidptr;
clone_flags = regs.regs[4];
newsp = regs.regs[5];
if (!newsp)
newsp = regs.regs[29];
parent_tidptr = (int __user *) regs.regs[6];
/* Use __dummy4 instead of getting it off the stack, so that
syscall() works. */
child_tidptr = (int __user *) __dummy4;
return do_fork(clone_flags, newsp, &regs, 0,
parent_tidptr, child_tidptr);
}