* environment. Based heavily on sys_ia32.c and sys_sparc32.c.
*/
-#include <linux/config.h>
#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/times.h>
#include <linux/utsname.h>
#include <linux/time.h>
-#include <linux/timex.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/sem.h>
char *filename;
DBG(("sys32_execve(%p) r26 = 0x%lx\n", regs, regs->gr[26]));
- filename = getname((char *) regs->gr[26]);
+ filename = getname((const char __user *) regs->gr[26]);
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
error = compat_do_execve(filename, compat_ptr(regs->gr[25]),
compat_ptr(regs->gr[24]), regs);
- if (error == 0)
+ if (error == 0) {
+ task_lock(current);
current->ptrace &= ~PT_DTRACE;
+ task_unlock(current);
+ }
putname(filename);
out:
u32 __unused[4];
};
-asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
+asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
{
struct __sysctl_args32 tmp;
int error;
unsigned int oldlen32;
size_t oldlen, *oldlenp = NULL;
- unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
+ unsigned long addr = (((long __force)&args->__unused[0]) + 7) & ~7;
extern int do_sysctl(int *name, int nlen, void *oldval, size_t *oldlenp,
void *newval, size_t newlen);
error = -EFAULT;
}
}
- if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
+ if (copy_to_user(&args->__unused[0], tmp.__unused, sizeof(tmp.__unused)))
error = -EFAULT;
}
return error;
}
-#else /* CONFIG_SYSCTL */
-
-asmlinkage long sys32_sysctl(struct __sysctl_args *args)
-{
- return -ENOSYS;
-}
#endif /* CONFIG_SYSCTL */
asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
- struct compat_timespec *interval)
+ struct compat_timespec __user *interval)
{
struct timespec t;
int ret;
-
- KERNEL_SYSCALL(ret, sys_sched_rr_get_interval, pid, &t);
+
+ KERNEL_SYSCALL(ret, sys_sched_rr_get_interval, pid, (struct timespec __user *)&t);
if (put_compat_timespec(&t, interval))
return -EFAULT;
return ret;
}
static int
-put_compat_timeval(struct compat_timeval *u, struct timeval *t)
+put_compat_timeval(struct compat_timeval __user *u, struct timeval *t)
{
struct compat_timeval t32;
t32.tv_sec = t->tv_sec;
return copy_to_user(u, &t32, sizeof t32);
}
-static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
+static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
{
long usec;
return 0;
}
-asmlinkage long sys32_time(compat_time_t *tloc)
-{
- struct timeval tv;
-
- do_gettimeofday(&tv);
- compat_time_t now32 = tv.tv_sec;
-
- if (tloc)
- if (put_user(now32, tloc))
- now32 = -EFAULT;
-
- return now32;
-}
-
asmlinkage int
-sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
+sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
{
extern void do_gettimeofday(struct timeval *tv);
}
asmlinkage
-int sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
+int sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
{
struct timespec kts;
struct timezone ktz;
return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
}
-int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
+int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
{
+ compat_ino_t ino;
int err;
if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
!new_valid_dev(stat->rdev))
return -EOVERFLOW;
+ ino = stat->ino;
+ if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino)
+ return -EOVERFLOW;
+
err = put_user(new_encode_dev(stat->dev), &statbuf->st_dev);
- err |= put_user(stat->ino, &statbuf->st_ino);
+ err |= put_user(ino, &statbuf->st_ino);
err |= put_user(stat->mode, &statbuf->st_mode);
err |= put_user(stat->nlink, &statbuf->st_nlink);
err |= put_user(0, &statbuf->st_reserved1);
};
struct getdents32_callback {
- struct linux32_dirent * current_dir;
- struct linux32_dirent * previous;
+ struct linux32_dirent __user * current_dir;
+ struct linux32_dirent __user * previous;
int count;
int error;
};
struct readdir32_callback {
- struct old_linux32_dirent * dirent;
+ struct old_linux32_dirent __user * dirent;
int count;
};
#define ROUND_UP(x,a) ((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
-#define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
static int
filldir32 (void *__buf, const char *name, int namlen, loff_t offset, ino_t ino,
unsigned int d_type)
{
- struct linux32_dirent * dirent;
+ struct linux32_dirent __user * dirent;
struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
+ u32 d_ino;
buf->error = -EINVAL; /* only used if we fail.. */
if (reclen > buf->count)
return -EINVAL;
+ d_ino = ino;
+ if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+ return -EOVERFLOW;
dirent = buf->previous;
if (dirent)
put_user(offset, &dirent->d_off);
dirent = buf->current_dir;
buf->previous = dirent;
- put_user(ino, &dirent->d_ino);
+ put_user(d_ino, &dirent->d_ino);
put_user(reclen, &dirent->d_reclen);
copy_to_user(dirent->d_name, name, namlen);
put_user(0, dirent->d_name + namlen);
- ((char *) dirent) += reclen;
+ dirent = ((void __user *)dirent) + reclen;
buf->current_dir = dirent;
buf->count -= reclen;
return 0;
}
asmlinkage long
-sys32_getdents (unsigned int fd, void * dirent, unsigned int count)
+sys32_getdents (unsigned int fd, void __user * dirent, unsigned int count)
{
struct file * file;
- struct linux32_dirent * lastdirent;
+ struct linux32_dirent __user * lastdirent;
struct getdents32_callback buf;
int error;
if (!file)
goto out;
- buf.current_dir = (struct linux32_dirent *) dirent;
+ buf.current_dir = (struct linux32_dirent __user *) dirent;
buf.previous = NULL;
buf.count = count;
buf.error = 0;
unsigned int d_type)
{
struct readdir32_callback * buf = (struct readdir32_callback *) __buf;
- struct old_linux32_dirent * dirent;
+ struct old_linux32_dirent __user * dirent;
+ u32 d_ino;
if (buf->count)
return -EINVAL;
+ d_ino = ino;
+ if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+ return -EOVERFLOW;
buf->count++;
dirent = buf->dirent;
- put_user(ino, &dirent->d_ino);
+ put_user(d_ino, &dirent->d_ino);
put_user(offset, &dirent->d_offset);
put_user(namlen, &dirent->d_namlen);
copy_to_user(dirent->d_name, name, namlen);
}
asmlinkage long
-sys32_readdir (unsigned int fd, void * dirent, unsigned int count)
+sys32_readdir (unsigned int fd, void __user * dirent, unsigned int count)
{
int error;
struct file * file;
if (ufdset) {
unsigned long odd;
- if (verify_area(VERIFY_WRITE, ufdset, n*sizeof(u32)))
+ if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
return -EFAULT;
odd = n & 1UL;
};
asmlinkage long sys32_msgsnd(int msqid,
- struct msgbuf32 *umsgp32,
+ struct msgbuf32 __user *umsgp32,
size_t msgsz, int msgflg)
{
struct msgbuf *mb;
if (err)
err = -EFAULT;
else
- KERNEL_SYSCALL(err, sys_msgsnd, msqid, mb, msgsz, msgflg);
+ KERNEL_SYSCALL(err, sys_msgsnd, msqid, (struct msgbuf __user *)mb, msgsz, msgflg);
kfree(mb);
return err;
}
asmlinkage long sys32_msgrcv(int msqid,
- struct msgbuf32 *umsgp32,
+ struct msgbuf32 __user *umsgp32,
size_t msgsz, long msgtyp, int msgflg)
{
struct msgbuf *mb;
if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
return -ENOMEM;
- KERNEL_SYSCALL(err, sys_msgrcv, msqid, mb, msgsz, msgtyp, msgflg);
+ KERNEL_SYSCALL(err, sys_msgrcv, msqid, (struct msgbuf __user *)mb, msgsz, msgtyp, msgflg);
if (err >= 0) {
len = err;
return err;
}
-asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset, s32 count)
+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;
return -EFAULT;
set_fs(KERNEL_DS);
- ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
+ 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 ret;
}
-typedef long __kernel_loff_t32; /* move this to asm/posix_types.h? */
-
-asmlinkage int sys32_sendfile64(int out_fd, int in_fd, __kernel_loff_t32 *offset, s32 count)
+asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
{
mm_segment_t old_fs = get_fs();
int ret;
return -EFAULT;
set_fs(KERNEL_DS);
- ret = sys_sendfile64(out_fd, in_fd, offset ? &lof : NULL, count);
+ ret = sys_sendfile64(out_fd, in_fd, offset ? (loff_t __user *)&lof : NULL, count);
set_fs(old_fs);
if (offset && put_user(lof, offset))
}
-struct timex32 {
- unsigned int modes; /* mode selector */
- int offset; /* time offset (usec) */
- int freq; /* frequency offset (scaled ppm) */
- int maxerror; /* maximum error (usec) */
- int esterror; /* estimated error (usec) */
- int status; /* clock command/status */
- int constant; /* pll time constant */
- int precision; /* clock precision (usec) (read only) */
- int tolerance; /* clock frequency tolerance (ppm)
- * (read only)
- */
- struct compat_timeval time; /* (read only) */
- int tick; /* (modified) usecs between clock ticks */
-
- int ppsfreq; /* pps frequency (scaled ppm) (ro) */
- int jitter; /* pps jitter (us) (ro) */
- int shift; /* interval duration (s) (shift) (ro) */
- int stabil; /* pps stability (scaled ppm) (ro) */
- int jitcnt; /* jitter limit exceeded (ro) */
- int calcnt; /* calibration intervals (ro) */
- int errcnt; /* calibration errors (ro) */
- int stbcnt; /* stability limit exceeded (ro) */
-
- int :32; int :32; int :32; int :32;
- int :32; int :32; int :32; int :32;
- int :32; int :32; int :32; int :32;
-};
-
-asmlinkage long sys32_adjtimex(struct timex32 *txc_p32)
-{
- struct timex txc;
- struct timex32 t32;
- int ret;
- extern int do_adjtimex(struct timex *txc);
-
- if(copy_from_user(&t32, txc_p32, sizeof(struct timex32)))
- return -EFAULT;
-#undef CP
-#define CP(x) txc.x = t32.x
- CP(modes); CP(offset); CP(freq); CP(maxerror); CP(esterror);
- CP(status); CP(constant); CP(precision); CP(tolerance);
- CP(time.tv_sec); CP(time.tv_usec); CP(tick); CP(ppsfreq); CP(jitter);
- CP(shift); CP(stabil); CP(jitcnt); CP(calcnt); CP(errcnt);
- CP(stbcnt);
- ret = do_adjtimex(&txc);
-#undef CP
-#define CP(x) t32.x = txc.x
- CP(modes); CP(offset); CP(freq); CP(maxerror); CP(esterror);
- CP(status); CP(constant); CP(precision); CP(tolerance);
- CP(time.tv_sec); CP(time.tv_usec); CP(tick); CP(ppsfreq); CP(jitter);
- CP(shift); CP(stabil); CP(jitcnt); CP(calcnt); CP(errcnt);
- CP(stbcnt);
- return copy_to_user(txc_p32, &t32, sizeof(struct timex32)) ? -EFAULT : ret;
-}
-
-
struct sysinfo32 {
s32 uptime;
u32 loads[3];
* damage, I decided to just duplicate the code from sys_sysinfo here.
*/
-asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
+asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
{
struct sysinfo val;
int err;
do {
seq = read_seqbegin(&xtime_lock);
- /* requires vx virtualization */
+ /* FIXME: requires vx virtualization */
val.uptime = jiffies / HZ;
val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
return sys_semctl (semid, semnum, cmd, arg);
}
-long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char *buf,
+long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
size_t len)
{
return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
git://git.onelab.eu / linux-2.6.git / blobdiff