static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d,
const sigset_t *s)
{
- int err;
+ BUILD_BUG_ON(sizeof(*d) != sizeof(*s));
+ BUILD_BUG_ON(_NSIG_WORDS != 2);
- BUG_ON(sizeof(*d) != sizeof(*s));
- BUG_ON(_NSIG_WORDS != 2);
-
- err = __put_user(s->sig[0], &d->sig[0]);
- err |= __put_user(s->sig[0] >> 32, &d->sig[1]);
- err |= __put_user(s->sig[1], &d->sig[2]);
- err |= __put_user(s->sig[1] >> 32, &d->sig[3]);
-
- return err;
+ return put_compat_sigset(d, s, sizeof(*d));
}
static inline int __copy_conv_sigset_from_user(sigset_t *d,
const compat_sigset_t __user *s)
{
- int err;
- union sigset_u {
- sigset_t s;
- compat_sigset_t c;
- } *u = (union sigset_u *) d;
-
- BUG_ON(sizeof(*d) != sizeof(*s));
- BUG_ON(_NSIG_WORDS != 2);
-
-#ifdef CONFIG_CPU_BIG_ENDIAN
- err = __get_user(u->c.sig[1], &s->sig[0]);
- err |= __get_user(u->c.sig[0], &s->sig[1]);
- err |= __get_user(u->c.sig[3], &s->sig[2]);
- err |= __get_user(u->c.sig[2], &s->sig[3]);
-#endif
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
- err = __get_user(u->c.sig[0], &s->sig[0]);
- err |= __get_user(u->c.sig[1], &s->sig[1]);
- err |= __get_user(u->c.sig[2], &s->sig[2]);
- err |= __get_user(u->c.sig[3], &s->sig[3]);
-#endif
-
- return err;
+ return get_compat_sigset(d, s);
}
#endif /* __ASM_COMPAT_SIGNAL_H */
unsigned long usp = (regs->gr[30] & ~(0x01UL));
unsigned long sigframe_size = PARISC_RT_SIGFRAME_SIZE;
#ifdef CONFIG_64BIT
- compat_sigset_t compat_set;
struct compat_rt_sigframe __user * compat_frame;
if (is_compat_task())
if (is_compat_task()) {
DBG(2,"sys_rt_sigreturn: ELF32 process.\n");
- if (__copy_from_user(&compat_set, &compat_frame->uc.uc_sigmask, sizeof(compat_set)))
+ if (get_compat_sigset(&set, &compat_frame->uc.uc_sigmask))
goto give_sigsegv;
- sigset_32to64(&set,&compat_set);
} else
#endif
{
int err = 0;
#ifdef CONFIG_64BIT
struct compat_rt_sigframe __user * compat_frame;
- compat_sigset_t compat_set;
#endif
usp = (regs->gr[30] & ~(0x01UL));
DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &compat_frame->uc.uc_mcontext);
err |= setup_sigcontext32(&compat_frame->uc.uc_mcontext,
&compat_frame->regs, regs, in_syscall);
- sigset_64to32(&compat_set,set);
- err |= __copy_to_user(&compat_frame->uc.uc_sigmask, &compat_set, sizeof(compat_set));
+ err |= put_compat_sigset(&compat_frame->uc.uc_sigmask, set,
+ sizeof(compat_sigset_t));
} else
#endif
{
#define DBG(LEVEL, ...)
#endif
-inline void
-sigset_32to64(sigset_t *s64, compat_sigset_t *s32)
-{
- s64->sig[0] = s32->sig[0] | ((unsigned long)s32->sig[1] << 32);
-}
-
-inline void
-sigset_64to32(compat_sigset_t *s32, sigset_t *s64)
-{
- s32->sig[0] = s64->sig[0] & 0xffffffffUL;
- s32->sig[1] = (s64->sig[0] >> 32) & 0xffffffffUL;
-}
-
long
restore_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf,
struct pt_regs *regs)
#define FUNCTIONCALLFRAME32 48
#define PARISC_RT_SIGFRAME_SIZE32 (((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
-void sigset_32to64(sigset_t *s64, compat_sigset_t *s32);
-void sigset_64to32(compat_sigset_t *s32, sigset_t *s64);
long restore_sigcontext32(struct compat_sigcontext __user *sc,
struct compat_regfile __user *rf,
struct pt_regs *regs);
*/
static inline int put_sigset_t(compat_sigset_t __user *uset, sigset_t *set)
{
- compat_sigset_t cset;
-
- switch (_NSIG_WORDS) {
- case 4: cset.sig[6] = set->sig[3] & 0xffffffffull;
- cset.sig[7] = set->sig[3] >> 32;
- case 3: cset.sig[4] = set->sig[2] & 0xffffffffull;
- cset.sig[5] = set->sig[2] >> 32;
- case 2: cset.sig[2] = set->sig[1] & 0xffffffffull;
- cset.sig[3] = set->sig[1] >> 32;
- case 1: cset.sig[0] = set->sig[0] & 0xffffffffull;
- cset.sig[1] = set->sig[0] >> 32;
- }
- return copy_to_user(uset, &cset, sizeof(*uset));
+ return put_compat_sigset(uset, set, sizeof(*uset));
}
static inline int get_sigset_t(sigset_t *set,
const compat_sigset_t __user *uset)
{
- compat_sigset_t s32;
-
- if (copy_from_user(&s32, uset, sizeof(*uset)))
- return -EFAULT;
-
- /*
- * Swap the 2 words of the 64-bit sigset_t (they are stored
- * in the "wrong" endian in 32-bit user storage).
- */
- switch (_NSIG_WORDS) {
- case 4: set->sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
- case 3: set->sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
- case 2: set->sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
- case 1: set->sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
- }
- return 0;
+ return get_compat_sigset(set, uset);
}
#define to_user_ptr(p) ptr_to_compat(p)
struct ucontext32 uc;
} rt_sigframe32;
-static inline void sigset_to_sigset32(unsigned long *set64,
- compat_sigset_word *set32)
-{
- set32[0] = (compat_sigset_word) set64[0];
- set32[1] = (compat_sigset_word)(set64[0] >> 32);
-}
-
-static inline void sigset32_to_sigset(compat_sigset_word *set32,
- unsigned long *set64)
-{
- set64[0] = (unsigned long) set32[0] | ((unsigned long) set32[1] << 32);
-}
-
int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
{
int err;
{
struct pt_regs *regs = task_pt_regs(current);
sigframe32 __user *frame = (sigframe32 __user *)regs->gprs[15];
- compat_sigset_t cset;
sigset_t set;
- if (__copy_from_user(&cset.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE32))
+ if (get_compat_sigset(&set, (compat_sigset_t __user *)frame->sc.oldmask))
goto badframe;
- sigset32_to_sigset(cset.sig, set.sig);
set_current_blocked(&set);
save_fpu_regs();
if (restore_sigregs32(regs, &frame->sregs))
{
struct pt_regs *regs = task_pt_regs(current);
rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15];
- compat_sigset_t cset;
sigset_t set;
- if (__copy_from_user(&cset, &frame->uc.uc_sigmask, sizeof(cset)))
+ if (get_compat_sigset(&set, &frame->uc.uc_sigmask))
goto badframe;
- sigset32_to_sigset(cset.sig, set.sig);
set_current_blocked(&set);
if (compat_restore_altstack(&frame->uc.uc_stack))
goto badframe;
{
int sig = ksig->sig;
sigframe32 __user *frame;
- struct sigcontext32 sc;
unsigned long restorer;
size_t frame_size;
return -EFAULT;
/* Create struct sigcontext32 on the signal stack */
- sigset_to_sigset32(set->sig, sc.oldmask);
- sc.sregs = (__u32)(unsigned long __force) &frame->sregs;
- if (__copy_to_user(&frame->sc, &sc, sizeof(frame->sc)))
+ if (put_compat_sigset((compat_sigset_t __user *)frame->sc.oldmask,
+ set, sizeof(compat_sigset_t)))
+ return -EFAULT;
+ if (__put_user(ptr_to_compat(&frame->sc), &frame->sc.sregs))
return -EFAULT;
/* Store registers needed to create the signal frame */
static int setup_rt_frame32(struct ksignal *ksig, sigset_t *set,
struct pt_regs *regs)
{
- compat_sigset_t cset;
rt_sigframe32 __user *frame;
unsigned long restorer;
size_t frame_size;
store_sigregs();
/* Create ucontext on the signal stack. */
- sigset_to_sigset32(set->sig, cset.sig);
if (__put_user(uc_flags, &frame->uc.uc_flags) ||
__put_user(0, &frame->uc.uc_link) ||
__compat_save_altstack(&frame->uc.uc_stack, regs->gprs[15]) ||
save_sigregs32(regs, &frame->uc.uc_mcontext) ||
- __copy_to_user(&frame->uc.uc_sigmask, &cset, sizeof(cset)) ||
+ put_compat_sigset(&frame->uc.uc_sigmask, set, sizeof(compat_sigset_t)) ||
save_sigregs_ext32(regs, &frame->uc.uc_mcontext_ext))
return -EFAULT;
compat_uptr_t fpu_save;
compat_uptr_t rwin_save;
sigset_t set;
- compat_sigset_t seta;
int err, i;
/* Always make any pending restarted system calls return -EINTR */
err |= __get_user(fpu_save, &sf->fpu_save);
if (!err && fpu_save)
err |= restore_fpu_state(regs, compat_ptr(fpu_save));
- err |= copy_from_user(&seta, &sf->mask, sizeof(compat_sigset_t));
+ err |= get_compat_sigset(&set, &sf->mask);
err |= compat_restore_altstack(&sf->stack);
if (err)
goto segv;
goto segv;
}
- set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32);
set_current_blocked(&set);
return;
segv:
void __user *tail;
int sigframe_size;
u32 psr;
- compat_sigset_t seta;
/* 1. Make sure everything is clean */
synchronize_user_stack();
/* Setup sigaltstack */
err |= __compat_save_altstack(&sf->stack, regs->u_regs[UREG_FP]);
- seta.sig[1] = (oldset->sig[0] >> 32);
- seta.sig[0] = oldset->sig[0];
- err |= __copy_to_user(&sf->mask, &seta, sizeof(compat_sigset_t));
+ err |= put_compat_sigset(&sf->mask, oldset, sizeof(compat_sigset_t));
if (!wsaved) {
err |= copy_in_user((u32 __user *)sf,
{
struct k_sigaction new_ka, old_ka;
int ret;
- compat_sigset_t set32;
/* XXX: Don't preclude handling different sized sigset_t's. */
if (sigsetsize != sizeof(compat_sigset_t))
new_ka.ka_restorer = restorer;
ret = get_user(u_handler, &act->sa_handler);
new_ka.sa.sa_handler = compat_ptr(u_handler);
- ret |= copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
- sigset_from_compat(&new_ka.sa.sa_mask, &set32);
+ ret |= get_compat_sigset(&new_ka.sa.sa_mask, &act->sa_mask);
ret |= get_user(new_ka.sa.sa_flags, &act->sa_flags);
ret |= get_user(u_restorer, &act->sa_restorer);
new_ka.sa.sa_restorer = compat_ptr(u_restorer);
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
- sigset_to_compat(&set32, &old_ka.sa.sa_mask);
ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
- ret |= copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
+ ret |= put_compat_sigset(&oact->sa_mask, &old_ka.sa.sa_mask,
+ sizeof(oact->sa_mask));
ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags);
ret |= put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
if (ret)
ssize_t ret = 0;
ssize_t nread;
- if (!access_ok(VERIFY_WRITE, buf, count))
- return -EFAULT;
-
WARN_ON(*ppos);
if (wait_event_interruptible(bt_bmc->queue,
if (count < 5)
return -EINVAL;
- if (!access_ok(VERIFY_READ, buf, count))
- return -EFAULT;
-
WARN_ON(*ppos);
/*
extern int r128_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int r128_cce_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv);
+extern int r128_cce_stipple(struct drm_device *dev, void *data, struct drm_file *file_priv);
+extern int r128_cce_depth(struct drm_device *dev, void *data, struct drm_file *file_priv);
+extern int r128_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv);
+
extern void r128_freelist_reset(struct drm_device *dev);
extern int r128_wait_ring(drm_r128_private_t *dev_priv, int n);
unsigned long arg)
{
drm_r128_init32_t init32;
- drm_r128_init_t __user *init;
+ drm_r128_init_t init;
if (copy_from_user(&init32, (void __user *)arg, sizeof(init32)))
return -EFAULT;
- init = compat_alloc_user_space(sizeof(*init));
- if (!access_ok(VERIFY_WRITE, init, sizeof(*init))
- || __put_user(init32.func, &init->func)
- || __put_user(init32.sarea_priv_offset, &init->sarea_priv_offset)
- || __put_user(init32.is_pci, &init->is_pci)
- || __put_user(init32.cce_mode, &init->cce_mode)
- || __put_user(init32.cce_secure, &init->cce_secure)
- || __put_user(init32.ring_size, &init->ring_size)
- || __put_user(init32.usec_timeout, &init->usec_timeout)
- || __put_user(init32.fb_bpp, &init->fb_bpp)
- || __put_user(init32.front_offset, &init->front_offset)
- || __put_user(init32.front_pitch, &init->front_pitch)
- || __put_user(init32.back_offset, &init->back_offset)
- || __put_user(init32.back_pitch, &init->back_pitch)
- || __put_user(init32.depth_bpp, &init->depth_bpp)
- || __put_user(init32.depth_offset, &init->depth_offset)
- || __put_user(init32.depth_pitch, &init->depth_pitch)
- || __put_user(init32.span_offset, &init->span_offset)
- || __put_user(init32.fb_offset, &init->fb_offset)
- || __put_user(init32.mmio_offset, &init->mmio_offset)
- || __put_user(init32.ring_offset, &init->ring_offset)
- || __put_user(init32.ring_rptr_offset, &init->ring_rptr_offset)
- || __put_user(init32.buffers_offset, &init->buffers_offset)
- || __put_user(init32.agp_textures_offset,
- &init->agp_textures_offset))
- return -EFAULT;
-
- return drm_ioctl(file, DRM_IOCTL_R128_INIT, (unsigned long)init);
+ init.func = init32.func;
+ init.sarea_priv_offset = init32.sarea_priv_offset;
+ init.is_pci = init32.is_pci;
+ init.cce_mode = init32.cce_mode;
+ init.cce_secure = init32.cce_secure;
+ init.ring_size = init32.ring_size;
+ init.usec_timeout = init32.usec_timeout;
+ init.fb_bpp = init32.fb_bpp;
+ init.front_offset = init32.front_offset;
+ init.front_pitch = init32.front_pitch;
+ init.back_offset = init32.back_offset;
+ init.back_pitch = init32.back_pitch;
+ init.depth_bpp = init32.depth_bpp;
+ init.depth_offset = init32.depth_offset;
+ init.depth_pitch = init32.depth_pitch;
+ init.span_offset = init32.span_offset;
+ init.fb_offset = init32.fb_offset;
+ init.mmio_offset = init32.mmio_offset;
+ init.ring_offset = init32.ring_offset;
+ init.ring_rptr_offset = init32.ring_rptr_offset;
+ init.buffers_offset = init32.buffers_offset;
+ init.agp_textures_offset = init32.agp_textures_offset;
+
+ return drm_ioctl_kernel(file, r128_cce_init, &init,
+ DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY);
}
typedef struct drm_r128_depth32 {
unsigned long arg)
{
drm_r128_depth32_t depth32;
- drm_r128_depth_t __user *depth;
+ drm_r128_depth_t depth;
if (copy_from_user(&depth32, (void __user *)arg, sizeof(depth32)))
return -EFAULT;
- depth = compat_alloc_user_space(sizeof(*depth));
- if (!access_ok(VERIFY_WRITE, depth, sizeof(*depth))
- || __put_user(depth32.func, &depth->func)
- || __put_user(depth32.n, &depth->n)
- || __put_user((int __user *)(unsigned long)depth32.x, &depth->x)
- || __put_user((int __user *)(unsigned long)depth32.y, &depth->y)
- || __put_user((unsigned int __user *)(unsigned long)depth32.buffer,
- &depth->buffer)
- || __put_user((unsigned char __user *)(unsigned long)depth32.mask,
- &depth->mask))
- return -EFAULT;
-
- return drm_ioctl(file, DRM_IOCTL_R128_DEPTH, (unsigned long)depth);
+ depth.func = depth32.func;
+ depth.n = depth32.n;
+ depth.x = compat_ptr(depth32.x);
+ depth.y = compat_ptr(depth32.y);
+ depth.buffer = compat_ptr(depth32.buffer);
+ depth.mask = compat_ptr(depth32.mask);
+ return drm_ioctl_kernel(file, r128_cce_depth, &depth, DRM_AUTH);
}
typedef struct drm_r128_stipple32 {
unsigned long arg)
{
drm_r128_stipple32_t stipple32;
- drm_r128_stipple_t __user *stipple;
+ drm_r128_stipple_t stipple;
if (copy_from_user(&stipple32, (void __user *)arg, sizeof(stipple32)))
return -EFAULT;
- stipple = compat_alloc_user_space(sizeof(*stipple));
- if (!access_ok(VERIFY_WRITE, stipple, sizeof(*stipple))
- || __put_user((unsigned int __user *)(unsigned long)stipple32.mask,
- &stipple->mask))
- return -EFAULT;
+ stipple.mask = compat_ptr(stipple32.mask);
- return drm_ioctl(file, DRM_IOCTL_R128_STIPPLE, (unsigned long)stipple);
+ return drm_ioctl_kernel(file, r128_cce_stipple, &stipple, DRM_AUTH);
}
typedef struct drm_r128_getparam32 {
unsigned long arg)
{
drm_r128_getparam32_t getparam32;
- drm_r128_getparam_t __user *getparam;
+ drm_r128_getparam_t getparam;
if (copy_from_user(&getparam32, (void __user *)arg, sizeof(getparam32)))
return -EFAULT;
- getparam = compat_alloc_user_space(sizeof(*getparam));
- if (!access_ok(VERIFY_WRITE, getparam, sizeof(*getparam))
- || __put_user(getparam32.param, &getparam->param)
- || __put_user((void __user *)(unsigned long)getparam32.value,
- &getparam->value))
- return -EFAULT;
+ getparam.param = getparam32.param;
+ getparam.value = compat_ptr(getparam32.value);
- return drm_ioctl(file, DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
+ return drm_ioctl_kernel(file, r128_getparam, &getparam, DRM_AUTH);
}
drm_ioctl_compat_t *r128_compat_ioctls[] = {
return ret;
}
-static int r128_cce_depth(struct drm_device *dev, void *data, struct drm_file *file_priv)
+int r128_cce_depth(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_r128_private_t *dev_priv = dev->dev_private;
drm_r128_depth_t *depth = data;
return ret;
}
-static int r128_cce_stipple(struct drm_device *dev, void *data, struct drm_file *file_priv)
+int r128_cce_stipple(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_r128_private_t *dev_priv = dev->dev_private;
drm_r128_stipple_t *stipple = data;
return 0;
}
-static int r128_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv)
+int r128_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_r128_private_t *dev_priv = dev->dev_private;
drm_r128_getparam_t *param = data;
#include <linux/notifier.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
+#include <linux/compat.h>
/*
* An i2c_dev represents an i2c_adapter ... an I2C or SMBus master, not a
}
static noinline int i2cdev_ioctl_rdwr(struct i2c_client *client,
- unsigned long arg)
+ unsigned nmsgs, struct i2c_msg *msgs)
{
- struct i2c_rdwr_ioctl_data rdwr_arg;
- struct i2c_msg *rdwr_pa;
u8 __user **data_ptrs;
int i, res;
- if (copy_from_user(&rdwr_arg,
- (struct i2c_rdwr_ioctl_data __user *)arg,
- sizeof(rdwr_arg)))
- return -EFAULT;
-
- /* Put an arbitrary limit on the number of messages that can
- * be sent at once */
- if (rdwr_arg.nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
- return -EINVAL;
-
- rdwr_pa = memdup_user(rdwr_arg.msgs,
- rdwr_arg.nmsgs * sizeof(struct i2c_msg));
- if (IS_ERR(rdwr_pa))
- return PTR_ERR(rdwr_pa);
-
- data_ptrs = kmalloc(rdwr_arg.nmsgs * sizeof(u8 __user *), GFP_KERNEL);
+ data_ptrs = kmalloc(nmsgs * sizeof(u8 __user *), GFP_KERNEL);
if (data_ptrs == NULL) {
- kfree(rdwr_pa);
+ kfree(msgs);
return -ENOMEM;
}
res = 0;
- for (i = 0; i < rdwr_arg.nmsgs; i++) {
+ for (i = 0; i < nmsgs; i++) {
/* Limit the size of the message to a sane amount */
- if (rdwr_pa[i].len > 8192) {
+ if (msgs[i].len > 8192) {
res = -EINVAL;
break;
}
- data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
- rdwr_pa[i].buf = memdup_user(data_ptrs[i], rdwr_pa[i].len);
- if (IS_ERR(rdwr_pa[i].buf)) {
- res = PTR_ERR(rdwr_pa[i].buf);
+ data_ptrs[i] = (u8 __user *)msgs[i].buf;
+ msgs[i].buf = memdup_user(data_ptrs[i], msgs[i].len);
+ if (IS_ERR(msgs[i].buf)) {
+ res = PTR_ERR(msgs[i].buf);
break;
}
* greater (for example to account for a checksum byte at
* the end of the message.)
*/
- if (rdwr_pa[i].flags & I2C_M_RECV_LEN) {
- if (!(rdwr_pa[i].flags & I2C_M_RD) ||
- rdwr_pa[i].buf[0] < 1 ||
- rdwr_pa[i].len < rdwr_pa[i].buf[0] +
+ if (msgs[i].flags & I2C_M_RECV_LEN) {
+ if (!(msgs[i].flags & I2C_M_RD) ||
+ msgs[i].buf[0] < 1 ||
+ msgs[i].len < msgs[i].buf[0] +
I2C_SMBUS_BLOCK_MAX) {
res = -EINVAL;
break;
}
- rdwr_pa[i].len = rdwr_pa[i].buf[0];
+ msgs[i].len = msgs[i].buf[0];
}
}
if (res < 0) {
int j;
for (j = 0; j < i; ++j)
- kfree(rdwr_pa[j].buf);
+ kfree(msgs[j].buf);
kfree(data_ptrs);
- kfree(rdwr_pa);
+ kfree(msgs);
return res;
}
- res = i2c_transfer(client->adapter, rdwr_pa, rdwr_arg.nmsgs);
+ res = i2c_transfer(client->adapter, msgs, nmsgs);
while (i-- > 0) {
- if (res >= 0 && (rdwr_pa[i].flags & I2C_M_RD)) {
- if (copy_to_user(data_ptrs[i], rdwr_pa[i].buf,
- rdwr_pa[i].len))
+ if (res >= 0 && (msgs[i].flags & I2C_M_RD)) {
+ if (copy_to_user(data_ptrs[i], msgs[i].buf,
+ msgs[i].len))
res = -EFAULT;
}
- kfree(rdwr_pa[i].buf);
+ kfree(msgs[i].buf);
}
kfree(data_ptrs);
- kfree(rdwr_pa);
+ kfree(msgs);
return res;
}
static noinline int i2cdev_ioctl_smbus(struct i2c_client *client,
- unsigned long arg)
+ u8 read_write, u8 command, u32 size,
+ union i2c_smbus_data __user *data)
{
- struct i2c_smbus_ioctl_data data_arg;
union i2c_smbus_data temp = {};
int datasize, res;
- if (copy_from_user(&data_arg,
- (struct i2c_smbus_ioctl_data __user *) arg,
- sizeof(struct i2c_smbus_ioctl_data)))
- return -EFAULT;
- if ((data_arg.size != I2C_SMBUS_BYTE) &&
- (data_arg.size != I2C_SMBUS_QUICK) &&
- (data_arg.size != I2C_SMBUS_BYTE_DATA) &&
- (data_arg.size != I2C_SMBUS_WORD_DATA) &&
- (data_arg.size != I2C_SMBUS_PROC_CALL) &&
- (data_arg.size != I2C_SMBUS_BLOCK_DATA) &&
- (data_arg.size != I2C_SMBUS_I2C_BLOCK_BROKEN) &&
- (data_arg.size != I2C_SMBUS_I2C_BLOCK_DATA) &&
- (data_arg.size != I2C_SMBUS_BLOCK_PROC_CALL)) {
+ if ((size != I2C_SMBUS_BYTE) &&
+ (size != I2C_SMBUS_QUICK) &&
+ (size != I2C_SMBUS_BYTE_DATA) &&
+ (size != I2C_SMBUS_WORD_DATA) &&
+ (size != I2C_SMBUS_PROC_CALL) &&
+ (size != I2C_SMBUS_BLOCK_DATA) &&
+ (size != I2C_SMBUS_I2C_BLOCK_BROKEN) &&
+ (size != I2C_SMBUS_I2C_BLOCK_DATA) &&
+ (size != I2C_SMBUS_BLOCK_PROC_CALL)) {
dev_dbg(&client->adapter->dev,
"size out of range (%x) in ioctl I2C_SMBUS.\n",
- data_arg.size);
+ size);
return -EINVAL;
}
/* Note that I2C_SMBUS_READ and I2C_SMBUS_WRITE are 0 and 1,
so the check is valid if size==I2C_SMBUS_QUICK too. */
- if ((data_arg.read_write != I2C_SMBUS_READ) &&
- (data_arg.read_write != I2C_SMBUS_WRITE)) {
+ if ((read_write != I2C_SMBUS_READ) &&
+ (read_write != I2C_SMBUS_WRITE)) {
dev_dbg(&client->adapter->dev,
"read_write out of range (%x) in ioctl I2C_SMBUS.\n",
- data_arg.read_write);
+ read_write);
return -EINVAL;
}
/* Note that command values are always valid! */
- if ((data_arg.size == I2C_SMBUS_QUICK) ||
- ((data_arg.size == I2C_SMBUS_BYTE) &&
- (data_arg.read_write == I2C_SMBUS_WRITE)))
+ if ((size == I2C_SMBUS_QUICK) ||
+ ((size == I2C_SMBUS_BYTE) &&
+ (read_write == I2C_SMBUS_WRITE)))
/* These are special: we do not use data */
return i2c_smbus_xfer(client->adapter, client->addr,
- client->flags, data_arg.read_write,
- data_arg.command, data_arg.size, NULL);
+ client->flags, read_write,
+ command, size, NULL);
- if (data_arg.data == NULL) {
+ if (data == NULL) {
dev_dbg(&client->adapter->dev,
"data is NULL pointer in ioctl I2C_SMBUS.\n");
return -EINVAL;
}
- if ((data_arg.size == I2C_SMBUS_BYTE_DATA) ||
- (data_arg.size == I2C_SMBUS_BYTE))
- datasize = sizeof(data_arg.data->byte);
- else if ((data_arg.size == I2C_SMBUS_WORD_DATA) ||
- (data_arg.size == I2C_SMBUS_PROC_CALL))
- datasize = sizeof(data_arg.data->word);
+ if ((size == I2C_SMBUS_BYTE_DATA) ||
+ (size == I2C_SMBUS_BYTE))
+ datasize = sizeof(data->byte);
+ else if ((size == I2C_SMBUS_WORD_DATA) ||
+ (size == I2C_SMBUS_PROC_CALL))
+ datasize = sizeof(data->word);
else /* size == smbus block, i2c block, or block proc. call */
- datasize = sizeof(data_arg.data->block);
+ datasize = sizeof(data->block);
- if ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
- (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
- (data_arg.size == I2C_SMBUS_I2C_BLOCK_DATA) ||
- (data_arg.read_write == I2C_SMBUS_WRITE)) {
- if (copy_from_user(&temp, data_arg.data, datasize))
+ if ((size == I2C_SMBUS_PROC_CALL) ||
+ (size == I2C_SMBUS_BLOCK_PROC_CALL) ||
+ (size == I2C_SMBUS_I2C_BLOCK_DATA) ||
+ (read_write == I2C_SMBUS_WRITE)) {
+ if (copy_from_user(&temp, data, datasize))
return -EFAULT;
}
- if (data_arg.size == I2C_SMBUS_I2C_BLOCK_BROKEN) {
+ if (size == I2C_SMBUS_I2C_BLOCK_BROKEN) {
/* Convert old I2C block commands to the new
convention. This preserves binary compatibility. */
- data_arg.size = I2C_SMBUS_I2C_BLOCK_DATA;
- if (data_arg.read_write == I2C_SMBUS_READ)
+ size = I2C_SMBUS_I2C_BLOCK_DATA;
+ if (read_write == I2C_SMBUS_READ)
temp.block[0] = I2C_SMBUS_BLOCK_MAX;
}
res = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
- data_arg.read_write, data_arg.command, data_arg.size, &temp);
- if (!res && ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
- (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
- (data_arg.read_write == I2C_SMBUS_READ))) {
- if (copy_to_user(data_arg.data, &temp, datasize))
+ read_write, command, size, &temp);
+ if (!res && ((size == I2C_SMBUS_PROC_CALL) ||
+ (size == I2C_SMBUS_BLOCK_PROC_CALL) ||
+ (read_write == I2C_SMBUS_READ))) {
+ if (copy_to_user(data, &temp, datasize))
return -EFAULT;
}
return res;
funcs = i2c_get_functionality(client->adapter);
return put_user(funcs, (unsigned long __user *)arg);
- case I2C_RDWR:
- return i2cdev_ioctl_rdwr(client, arg);
+ case I2C_RDWR: {
+ struct i2c_rdwr_ioctl_data rdwr_arg;
+ struct i2c_msg *rdwr_pa;
+
+ if (copy_from_user(&rdwr_arg,
+ (struct i2c_rdwr_ioctl_data __user *)arg,
+ sizeof(rdwr_arg)))
+ return -EFAULT;
+
+ /* Put an arbitrary limit on the number of messages that can
+ * be sent at once */
+ if (rdwr_arg.nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
+ return -EINVAL;
- case I2C_SMBUS:
- return i2cdev_ioctl_smbus(client, arg);
+ rdwr_pa = memdup_user(rdwr_arg.msgs,
+ rdwr_arg.nmsgs * sizeof(struct i2c_msg));
+ if (IS_ERR(rdwr_pa))
+ return PTR_ERR(rdwr_pa);
+
+ return i2cdev_ioctl_rdwr(client, rdwr_arg.nmsgs, rdwr_pa);
+ }
+ case I2C_SMBUS: {
+ struct i2c_smbus_ioctl_data data_arg;
+ if (copy_from_user(&data_arg,
+ (struct i2c_smbus_ioctl_data __user *) arg,
+ sizeof(struct i2c_smbus_ioctl_data)))
+ return -EFAULT;
+ return i2cdev_ioctl_smbus(client, data_arg.read_write,
+ data_arg.command,
+ data_arg.size,
+ data_arg.data);
+ }
case I2C_RETRIES:
client->adapter->retries = arg;
break;
return 0;
}
+#ifdef CONFIG_COMPAT
+
+struct i2c_smbus_ioctl_data32 {
+ u8 read_write;
+ u8 command;
+ u32 size;
+ compat_caddr_t data; /* union i2c_smbus_data *data */
+};
+
+struct i2c_msg32 {
+ u16 addr;
+ u16 flags;
+ u16 len;
+ compat_caddr_t buf;
+};
+
+struct i2c_rdwr_ioctl_data32 {
+ compat_caddr_t msgs; /* struct i2c_msg __user *msgs */
+ u32 nmsgs;
+};
+
+static long compat_i2cdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct i2c_client *client = file->private_data;
+ unsigned long funcs;
+ switch (cmd) {
+ case I2C_FUNCS:
+ funcs = i2c_get_functionality(client->adapter);
+ return put_user(funcs, (compat_ulong_t __user *)arg);
+ case I2C_RDWR: {
+ struct i2c_rdwr_ioctl_data32 rdwr_arg;
+ struct i2c_msg32 *p;
+ struct i2c_msg *rdwr_pa;
+ int i;
+
+ if (copy_from_user(&rdwr_arg,
+ (struct i2c_rdwr_ioctl_data32 __user *)arg,
+ sizeof(rdwr_arg)))
+ return -EFAULT;
+
+ if (rdwr_arg.nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
+ return -EINVAL;
+
+ rdwr_pa = kmalloc_array(rdwr_arg.nmsgs, sizeof(struct i2c_msg),
+ GFP_KERNEL);
+ if (!rdwr_pa)
+ return -ENOMEM;
+
+ p = compat_ptr(rdwr_arg.msgs);
+ for (i = 0; i < rdwr_arg.nmsgs; i++) {
+ struct i2c_msg32 umsg;
+ if (copy_from_user(&umsg, p + i, sizeof(umsg))) {
+ kfree(rdwr_pa);
+ return -EFAULT;
+ }
+ rdwr_pa[i] = (struct i2c_msg) {
+ .addr = umsg.addr,
+ .flags = umsg.flags,
+ .len = umsg.len,
+ .buf = compat_ptr(umsg.buf)
+ };
+ }
+
+ return i2cdev_ioctl_rdwr(client, rdwr_arg.nmsgs, rdwr_pa);
+ }
+ case I2C_SMBUS: {
+ struct i2c_smbus_ioctl_data32 data32;
+ if (copy_from_user(&data32,
+ (void __user *) arg,
+ sizeof(data32)))
+ return -EFAULT;
+ return i2cdev_ioctl_smbus(client, data32.read_write,
+ data32.command,
+ data32.size,
+ compat_ptr(data32.data));
+ }
+ default:
+ return i2cdev_ioctl(file, cmd, arg);
+ }
+}
+#else
+#define compat_i2cdev_ioctl NULL
+#endif
+
static int i2cdev_open(struct inode *inode, struct file *file)
{
unsigned int minor = iminor(inode);
.read = i2cdev_read,
.write = i2cdev_write,
.unlocked_ioctl = i2cdev_ioctl,
+ .compat_ioctl = compat_i2cdev_ioctl,
.open = i2cdev_open,
.release = i2cdev_release,
};
return -EINVAL;
if (!mtd->_write_oob)
- ret = -EOPNOTSUPP;
- else
- ret = access_ok(VERIFY_READ, ptr, length) ? 0 : -EFAULT;
-
- if (ret)
- return ret;
+ return -EOPNOTSUPP;
ops.ooblen = length;
ops.ooboffs = start & (mtd->writesize - 1);
if (length > 4096)
return -EINVAL;
- if (!access_ok(VERIFY_WRITE, ptr, length))
- return -EFAULT;
-
ops.ooblen = length;
ops.ooboffs = start & (mtd->writesize - 1);
ops.datbuf = NULL;
usr_data = (const void __user *)(uintptr_t)req.usr_data;
usr_oob = (const void __user *)(uintptr_t)req.usr_oob;
- if (!access_ok(VERIFY_READ, usr_data, req.len) ||
- !access_ok(VERIFY_READ, usr_oob, req.ooblen))
- return -EFAULT;
if (!mtd->_write_oob)
return -EOPNOTSUPP;
struct mtd_info *mtd = mfi->mtd;
void __user *argp = (void __user *)arg;
int ret = 0;
- u_long size;
struct mtd_info_user info;
pr_debug("MTD_ioctl\n");
- size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT;
- if (cmd & IOC_IN) {
- if (!access_ok(VERIFY_READ, argp, size))
- return -EFAULT;
- }
- if (cmd & IOC_OUT) {
- if (!access_ok(VERIFY_WRITE, argp, size))
- return -EFAULT;
- }
-
switch (cmd) {
case MEMGETREGIONCOUNT:
if (copy_to_user(argp, &(mtd->numeraseregions), sizeof(int)))
goto out;
}
- if (unlikely(!access_ok(is_write ? VERIFY_READ : VERIFY_WRITE,
- ubuf, ulen))) {
- rc = -EFAULT;
- goto out;
- }
-
buf = kmalloc(ulen + cache_line_size() - 1, GFP_KERNEL);
if (unlikely(!buf)) {
rc = -ENOMEM;
static long
pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
- int err = 0;
int retval = 0;
struct pi433_instance *instance;
struct pi433_device *device;
- u32 tmp;
+ void __user *argp = (void __user *)arg;
/* Check type and command number */
if (_IOC_TYPE(cmd) != PI433_IOC_MAGIC)
return -ENOTTY;
- /* Check access direction once here; don't repeat below.
- * IOC_DIR is from the user perspective, while access_ok is
- * from the kernel perspective; so they look reversed.
- */
- if (_IOC_DIR(cmd) & _IOC_READ)
- err = !access_ok(VERIFY_WRITE,
- (void __user *)arg,
- _IOC_SIZE(cmd));
-
- if (err == 0 && _IOC_DIR(cmd) & _IOC_WRITE)
- err = !access_ok(VERIFY_READ,
- (void __user *)arg,
- _IOC_SIZE(cmd));
- if (err)
- return -EFAULT;
-
/* TODO? guard against device removal before, or while,
* we issue this ioctl. --> device_get()
*/
switch (cmd) {
case PI433_IOC_RD_TX_CFG:
- tmp = _IOC_SIZE(cmd);
- if ((tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0)) {
- retval = -EINVAL;
- break;
- }
-
- if (__copy_to_user((void __user *)arg,
- &instance->tx_cfg,
- tmp))
- {
- retval = -EFAULT;
- break;
- }
-
+ if (copy_to_user(argp, &instance->tx_cfg,
+ sizeof(struct pi433_tx_cfg)))
+ return -EFAULT;
break;
case PI433_IOC_WR_TX_CFG:
- tmp = _IOC_SIZE(cmd);
- if ((tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0)) {
- retval = -EINVAL;
- break;
- }
-
- if (__copy_from_user(&instance->tx_cfg,
- (void __user *)arg,
- tmp))
- {
- retval = -EFAULT;
- break;
- }
-
+ if (copy_from_user(&instance->tx_cfg, argp,
+ sizeof(struct pi433_tx_cfg)))
+ return -EFAULT;
break;
-
case PI433_IOC_RD_RX_CFG:
- tmp = _IOC_SIZE(cmd);
- if ( (tmp == 0) || ((tmp % sizeof(struct pi433_rx_cfg)) != 0) ) {
- retval = -EINVAL;
- break;
- }
-
- if (__copy_to_user((void __user *)arg,
- &device->rx_cfg,
- tmp))
- {
- retval = -EFAULT;
- break;
- }
-
+ if (copy_to_user(argp, &device->rx_cfg,
+ sizeof(struct pi433_rx_cfg)))
+ return -EFAULT;
break;
case PI433_IOC_WR_RX_CFG:
- tmp = _IOC_SIZE(cmd);
mutex_lock(&device->rx_lock);
/* during pendig read request, change of config not allowed */
if (device->rx_active) {
- retval = -EAGAIN;
- mutex_unlock(&device->rx_lock);
- break;
- }
-
- if ( (tmp == 0) || ((tmp % sizeof(struct pi433_rx_cfg)) != 0) ) {
- retval = -EINVAL;
mutex_unlock(&device->rx_lock);
- break;
+ return -EAGAIN;
}
- if (__copy_from_user(&device->rx_cfg,
- (void __user *)arg,
- tmp))
- {
- retval = -EFAULT;
+ if (copy_from_user(&device->rx_cfg, argp,
+ sizeof(struct pi433_rx_cfg))) {
mutex_unlock(&device->rx_lock);
- break;
+ return -EFAULT;
}
mutex_unlock(&device->rx_lock);
int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *tty)
{
struct vc_data *vc = vc_cons[fg_console].d;
- int sel_mode, new_sel_start, new_sel_end, spc;
+ int new_sel_start, new_sel_end, spc;
+ struct tiocl_selection v;
char *bp, *obp;
int i, ps, pe, multiplier;
u16 c;
int mode;
poke_blanked_console();
+ if (copy_from_user(&v, sel, sizeof(*sel)))
+ return -EFAULT;
- { unsigned short xs, ys, xe, ye;
+ v.xs = limit(v.xs - 1, vc->vc_cols - 1);
+ v.ys = limit(v.ys - 1, vc->vc_rows - 1);
+ v.xe = limit(v.xe - 1, vc->vc_cols - 1);
+ v.ye = limit(v.ye - 1, vc->vc_rows - 1);
+ ps = v.ys * vc->vc_size_row + (v.xs << 1);
+ pe = v.ye * vc->vc_size_row + (v.xe << 1);
- if (!access_ok(VERIFY_READ, sel, sizeof(*sel)))
- return -EFAULT;
- __get_user(xs, &sel->xs);
- __get_user(ys, &sel->ys);
- __get_user(xe, &sel->xe);
- __get_user(ye, &sel->ye);
- __get_user(sel_mode, &sel->sel_mode);
- xs--; ys--; xe--; ye--;
- xs = limit(xs, vc->vc_cols - 1);
- ys = limit(ys, vc->vc_rows - 1);
- xe = limit(xe, vc->vc_cols - 1);
- ye = limit(ye, vc->vc_rows - 1);
- ps = ys * vc->vc_size_row + (xs << 1);
- pe = ye * vc->vc_size_row + (xe << 1);
-
- if (sel_mode == TIOCL_SELCLEAR) {
- /* useful for screendump without selection highlights */
- clear_selection();
- return 0;
- }
-
- if (mouse_reporting() && (sel_mode & TIOCL_SELMOUSEREPORT)) {
- mouse_report(tty, sel_mode & TIOCL_SELBUTTONMASK, xs, ys);
- return 0;
- }
- }
+ if (v.sel_mode == TIOCL_SELCLEAR) {
+ /* useful for screendump without selection highlights */
+ clear_selection();
+ return 0;
+ }
+
+ if (mouse_reporting() && (v.sel_mode & TIOCL_SELMOUSEREPORT)) {
+ mouse_report(tty, v.sel_mode & TIOCL_SELBUTTONMASK, v.xs, v.ys);
+ return 0;
+ }
if (ps > pe) /* make sel_start <= sel_end */
{
else
use_unicode = 0;
- switch (sel_mode)
+ switch (v.sel_mode)
{
case TIOCL_SELCHAR: /* character-by-character selection */
new_sel_start = ps;
case VT_RESIZEX:
{
- struct vt_consize __user *vtconsize = up;
- ushort ll,cc,vlin,clin,vcol,ccol;
+ struct vt_consize v;
if (!perm)
return -EPERM;
- if (!access_ok(VERIFY_READ, vtconsize,
- sizeof(struct vt_consize))) {
- ret = -EFAULT;
- break;
- }
+ if (copy_from_user(&v, up, sizeof(struct vt_consize)))
+ return -EFAULT;
/* FIXME: Should check the copies properly */
- __get_user(ll, &vtconsize->v_rows);
- __get_user(cc, &vtconsize->v_cols);
- __get_user(vlin, &vtconsize->v_vlin);
- __get_user(clin, &vtconsize->v_clin);
- __get_user(vcol, &vtconsize->v_vcol);
- __get_user(ccol, &vtconsize->v_ccol);
- vlin = vlin ? vlin : vc->vc_scan_lines;
- if (clin) {
- if (ll) {
- if (ll != vlin/clin) {
- /* Parameters don't add up */
- ret = -EINVAL;
- break;
- }
- } else
- ll = vlin/clin;
+ if (!v.v_vlin)
+ v.v_vlin = vc->vc_scan_lines;
+ if (v.v_clin) {
+ int rows = v.v_vlin/v.v_clin;
+ if (v.v_rows != rows) {
+ if (v.v_rows) /* Parameters don't add up */
+ return -EINVAL;
+ v.v_rows = rows;
+ }
}
- if (vcol && ccol) {
- if (cc) {
- if (cc != vcol/ccol) {
- ret = -EINVAL;
- break;
- }
- } else
- cc = vcol/ccol;
+ if (v.v_vcol && v.v_ccol) {
+ int cols = v.v_vcol/v.v_ccol;
+ if (v.v_cols != cols) {
+ if (v.v_cols)
+ return -EINVAL;
+ v.v_cols = cols;
+ }
}
- if (clin > 32) {
- ret = -EINVAL;
- break;
- }
-
+ if (v.v_clin > 32)
+ return -EINVAL;
+
for (i = 0; i < MAX_NR_CONSOLES; i++) {
if (!vc_cons[i].d)
continue;
console_lock();
- if (vlin)
- vc_cons[i].d->vc_scan_lines = vlin;
- if (clin)
- vc_cons[i].d->vc_font.height = clin;
+ if (v.v_vlin)
+ vc_cons[i].d->vc_scan_lines = v.v_vlin;
+ if (v.v_clin)
+ vc_cons[i].d->vc_font.height = v.v_clin;
vc_cons[i].d->vc_resize_user = 1;
- vc_resize(vc_cons[i].d, cc, ll);
+ vc_resize(vc_cons[i].d, v.v_cols, v.v_rows);
console_unlock();
}
break;
static long read_events(struct kioctx *ctx, long min_nr, long nr,
struct io_event __user *event,
- struct timespec __user *timeout)
+ ktime_t until)
{
- ktime_t until = KTIME_MAX;
long ret = 0;
- if (timeout) {
- struct timespec ts;
-
- if (unlikely(copy_from_user(&ts, timeout, sizeof(ts))))
- return -EFAULT;
-
- until = timespec_to_ktime(ts);
- }
-
/*
* Note that aio_read_events() is being called as the conditional - i.e.
* we're calling it after prepare_to_wait() has set task state to
return ret;
}
+static long do_io_getevents(aio_context_t ctx_id,
+ long min_nr,
+ long nr,
+ struct io_event __user *events,
+ struct timespec64 *ts)
+{
+ ktime_t until = ts ? timespec64_to_ktime(*ts) : KTIME_MAX;
+ struct kioctx *ioctx = lookup_ioctx(ctx_id);
+ long ret = -EINVAL;
+
+ if (likely(ioctx)) {
+ if (likely(min_nr <= nr && min_nr >= 0))
+ ret = read_events(ioctx, min_nr, nr, events, until);
+ percpu_ref_put(&ioctx->users);
+ }
+
+ return ret;
+}
+
/* io_getevents:
* Attempts to read at least min_nr events and up to nr events from
* the completion queue for the aio_context specified by ctx_id. If
struct io_event __user *, events,
struct timespec __user *, timeout)
{
- struct kioctx *ioctx = lookup_ioctx(ctx_id);
- long ret = -EINVAL;
+ struct timespec64 ts;
- if (likely(ioctx)) {
- if (likely(min_nr <= nr && min_nr >= 0))
- ret = read_events(ioctx, min_nr, nr, events, timeout);
- percpu_ref_put(&ioctx->users);
+ if (timeout) {
+ if (unlikely(get_timespec64(&ts, timeout)))
+ return -EFAULT;
}
- return ret;
+
+ return do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &ts : NULL);
}
#ifdef CONFIG_COMPAT
struct io_event __user *, events,
struct compat_timespec __user *, timeout)
{
- struct timespec t;
- struct timespec __user *ut = NULL;
+ struct timespec64 t;
if (timeout) {
- if (compat_get_timespec(&t, timeout))
+ if (compat_get_timespec64(&t, timeout))
return -EFAULT;
- ut = compat_alloc_user_space(sizeof(*ut));
- if (copy_to_user(ut, &t, sizeof(t)))
- return -EFAULT;
}
- return sys_io_getevents(ctx_id, min_nr, nr, events, ut);
+
+ return do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
}
#endif
#include <linux/if_tun.h>
#include <linux/ctype.h>
#include <linux/syscalls.h>
-#include <linux/i2c.h>
-#include <linux/i2c-dev.h>
#include <linux/atalk.h>
#include <linux/gfp.h>
#include <linux/cec.h>
return vfs_ioctl(file, cmd, arg);
}
-static int w_long(struct file *file,
- unsigned int cmd, compat_ulong_t __user *argp)
-{
- int err;
- unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));
-
- if (valp == NULL)
- return -EFAULT;
- err = do_ioctl(file, cmd, (unsigned long)valp);
- if (err)
- return err;
- if (convert_in_user(valp, argp))
- return -EFAULT;
- return 0;
-}
-
struct compat_video_event {
int32_t type;
compat_time_t timestamp;
return err;
}
-/*
- * I2C layer ioctls
- */
-
-struct i2c_msg32 {
- u16 addr;
- u16 flags;
- u16 len;
- compat_caddr_t buf;
-};
-
-struct i2c_rdwr_ioctl_data32 {
- compat_caddr_t msgs; /* struct i2c_msg __user *msgs */
- u32 nmsgs;
-};
-
-struct i2c_smbus_ioctl_data32 {
- u8 read_write;
- u8 command;
- u32 size;
- compat_caddr_t data; /* union i2c_smbus_data *data */
-};
-
-struct i2c_rdwr_aligned {
- struct i2c_rdwr_ioctl_data cmd;
- struct i2c_msg msgs[0];
-};
-
-static int do_i2c_rdwr_ioctl(struct file *file,
- unsigned int cmd, struct i2c_rdwr_ioctl_data32 __user *udata)
-{
- struct i2c_rdwr_aligned __user *tdata;
- struct i2c_msg __user *tmsgs;
- struct i2c_msg32 __user *umsgs;
- compat_caddr_t datap;
- u32 nmsgs;
- int i;
-
- if (get_user(nmsgs, &udata->nmsgs))
- return -EFAULT;
- if (nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
- return -EINVAL;
-
- if (get_user(datap, &udata->msgs))
- return -EFAULT;
- umsgs = compat_ptr(datap);
-
- tdata = compat_alloc_user_space(sizeof(*tdata) +
- nmsgs * sizeof(struct i2c_msg));
- tmsgs = &tdata->msgs[0];
-
- if (put_user(nmsgs, &tdata->cmd.nmsgs) ||
- put_user(tmsgs, &tdata->cmd.msgs))
- return -EFAULT;
-
- for (i = 0; i < nmsgs; i++) {
- if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
- return -EFAULT;
- if (get_user(datap, &umsgs[i].buf) ||
- put_user(compat_ptr(datap), &tmsgs[i].buf))
- return -EFAULT;
- }
- return do_ioctl(file, cmd, (unsigned long)tdata);
-}
-
-static int do_i2c_smbus_ioctl(struct file *file,
- unsigned int cmd, struct i2c_smbus_ioctl_data32 __user *udata)
-{
- struct i2c_smbus_ioctl_data __user *tdata;
- union {
- /* beginnings of those have identical layouts */
- struct i2c_smbus_ioctl_data32 data32;
- struct i2c_smbus_ioctl_data data;
- } v;
-
- tdata = compat_alloc_user_space(sizeof(*tdata));
- if (tdata == NULL)
- return -ENOMEM;
-
- memset(&v, 0, sizeof(v));
- if (copy_from_user(&v.data32, udata, sizeof(v.data32)))
- return -EFAULT;
- v.data.data = compat_ptr(v.data32.data);
-
- if (copy_to_user(tdata, &v.data, sizeof(v.data)))
- return -EFAULT;
-
- return do_ioctl(file, cmd, (unsigned long)tdata);
-}
-
#define RTC_IRQP_READ32 _IOR('p', 0x0b, compat_ulong_t)
#define RTC_IRQP_SET32 _IOW('p', 0x0c, compat_ulong_t)
#define RTC_EPOCH_READ32 _IOR('p', 0x0d, compat_ulong_t)
COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
-/* i2c */
-COMPATIBLE_IOCTL(I2C_SLAVE)
-COMPATIBLE_IOCTL(I2C_SLAVE_FORCE)
-COMPATIBLE_IOCTL(I2C_TENBIT)
-COMPATIBLE_IOCTL(I2C_PEC)
-COMPATIBLE_IOCTL(I2C_RETRIES)
-COMPATIBLE_IOCTL(I2C_TIMEOUT)
/* hiddev */
COMPATIBLE_IOCTL(HIDIOCGVERSION)
COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
case TIOCGSERIAL:
case TIOCSSERIAL:
return serial_struct_ioctl(file, cmd, argp);
- /* i2c */
- case I2C_FUNCS:
- return w_long(file, cmd, argp);
- case I2C_RDWR:
- return do_i2c_rdwr_ioctl(file, cmd, argp);
- case I2C_SMBUS:
- return do_i2c_smbus_ioctl(file, cmd, argp);
/* Not implemented in the native kernel */
case RTC_IRQP_READ32:
case RTC_IRQP_SET32:
* privs and don't want to unlink another user's coredump.
*/
if (!need_suid_safe) {
- mm_segment_t old_fs;
-
- old_fs = get_fs();
- set_fs(KERNEL_DS);
/*
* If it doesn't exist, that's fine. If there's some
* other problem, we'll catch it at the filp_open().
*/
- (void) sys_unlink((const char __user *)cn.corename);
- set_fs(old_fs);
+ do_unlinkat(AT_FDCWD, getname_kernel(cn.corename));
}
/*
compat_size_t, sigsetsize)
{
long err;
- compat_sigset_t csigmask;
sigset_t ksigmask, sigsaved;
/*
if (sigmask) {
if (sigsetsize != sizeof(compat_sigset_t))
return -EINVAL;
- if (copy_from_user(&csigmask, sigmask, sizeof(csigmask)))
+ if (get_compat_sigset(&ksigmask, sigmask))
return -EFAULT;
- sigset_from_compat(&ksigmask, &csigmask);
sigsaved = current->blocked;
set_current_blocked(&ksigmask);
}
return 0;
}
+static long ext4_ioctl_group_add(struct file *file,
+ struct ext4_new_group_data *input)
+{
+ struct super_block *sb = file_inode(file)->i_sb;
+ int err, err2=0;
+
+ err = ext4_resize_begin(sb);
+ if (err)
+ return err;
+
+ if (ext4_has_feature_bigalloc(sb)) {
+ ext4_msg(sb, KERN_ERR,
+ "Online resizing not supported with bigalloc");
+ err = -EOPNOTSUPP;
+ goto group_add_out;
+ }
+
+ err = mnt_want_write_file(file);
+ if (err)
+ goto group_add_out;
+
+ err = ext4_group_add(sb, input);
+ if (EXT4_SB(sb)->s_journal) {
+ jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
+ err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+ jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
+ }
+ if (err == 0)
+ err = err2;
+ mnt_drop_write_file(file);
+ if (!err && ext4_has_group_desc_csum(sb) &&
+ test_opt(sb, INIT_INODE_TABLE))
+ err = ext4_register_li_request(sb, input->group);
+group_add_out:
+ ext4_resize_end(sb);
+ return err;
+}
+
long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct inode *inode = file_inode(filp);
case EXT4_IOC_GROUP_ADD: {
struct ext4_new_group_data input;
- int err, err2=0;
-
- err = ext4_resize_begin(sb);
- if (err)
- return err;
if (copy_from_user(&input, (struct ext4_new_group_input __user *)arg,
- sizeof(input))) {
- err = -EFAULT;
- goto group_add_out;
- }
-
- if (ext4_has_feature_bigalloc(sb)) {
- ext4_msg(sb, KERN_ERR,
- "Online resizing not supported with bigalloc");
- err = -EOPNOTSUPP;
- goto group_add_out;
- }
-
- err = mnt_want_write_file(filp);
- if (err)
- goto group_add_out;
+ sizeof(input)))
+ return -EFAULT;
- err = ext4_group_add(sb, &input);
- if (EXT4_SB(sb)->s_journal) {
- jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
- err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
- jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
- }
- if (err == 0)
- err = err2;
- mnt_drop_write_file(filp);
- if (!err && ext4_has_group_desc_csum(sb) &&
- test_opt(sb, INIT_INODE_TABLE))
- err = ext4_register_li_request(sb, input.group);
-group_add_out:
- ext4_resize_end(sb);
- return err;
+ return ext4_ioctl_group_add(filp, &input);
}
case EXT4_IOC_MIGRATE:
break;
case EXT4_IOC32_GROUP_ADD: {
struct compat_ext4_new_group_input __user *uinput;
- struct ext4_new_group_input input;
- mm_segment_t old_fs;
+ struct ext4_new_group_data input;
int err;
uinput = compat_ptr(arg);
&uinput->reserved_blocks);
if (err)
return -EFAULT;
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- err = ext4_ioctl(file, EXT4_IOC_GROUP_ADD,
- (unsigned long) &input);
- set_fs(old_fs);
- return err;
+ return ext4_ioctl_group_add(file, &input);
}
case EXT4_IOC_MOVE_EXT:
case EXT4_IOC_RESIZE_FS:
extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *);
extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
const char *, unsigned int, struct path *);
+long do_unlinkat(int dfd, struct filename *name);
/*
* namespace.c
* writeout happening, and we don't want to prevent access to the directory
* while waiting on the I/O.
*/
-static long do_unlinkat(int dfd, const char __user *pathname)
+long do_unlinkat(int dfd, struct filename *name)
{
int error;
- struct filename *name;
struct dentry *dentry;
struct path path;
struct qstr last;
struct inode *delegated_inode = NULL;
unsigned int lookup_flags = 0;
retry:
- name = filename_parentat(dfd, getname(pathname), lookup_flags,
- &path, &last, &type);
+ name = filename_parentat(dfd, name, lookup_flags, &path, &last, &type);
if (IS_ERR(name))
return PTR_ERR(name);
mnt_drop_write(path.mnt);
exit1:
path_put(&path);
- putname(name);
if (retry_estale(error, lookup_flags)) {
lookup_flags |= LOOKUP_REVAL;
inode = NULL;
goto retry;
}
+ putname(name);
return error;
slashes:
if (flag & AT_REMOVEDIR)
return do_rmdir(dfd, pathname);
- return do_unlinkat(dfd, pathname);
+ return do_unlinkat(dfd, getname(pathname));
}
SYSCALL_DEFINE1(unlink, const char __user *, pathname)
{
- return do_unlinkat(AT_FDCWD, pathname);
+ return do_unlinkat(AT_FDCWD, getname(pathname));
}
int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname)
void __user *p,
int timeval, int ret)
{
- struct timespec64 rts64;
- struct timespec rts;
+ struct timespec64 rts;
struct timeval rtv;
if (!p)
if (!end_time->tv_sec && !end_time->tv_nsec)
return ret;
- ktime_get_ts64(&rts64);
- rts64 = timespec64_sub(*end_time, rts64);
- if (rts64.tv_sec < 0)
- rts64.tv_sec = rts64.tv_nsec = 0;
+ ktime_get_ts64(&rts);
+ rts = timespec64_sub(*end_time, rts);
+ if (rts.tv_sec < 0)
+ rts.tv_sec = rts.tv_nsec = 0;
- rts = timespec64_to_timespec(rts64);
if (timeval) {
if (sizeof(rtv) > sizeof(rtv.tv_sec) + sizeof(rtv.tv_usec))
memset(&rtv, 0, sizeof(rtv));
- rtv.tv_sec = rts64.tv_sec;
- rtv.tv_usec = rts64.tv_nsec / NSEC_PER_USEC;
+ rtv.tv_sec = rts.tv_sec;
+ rtv.tv_usec = rts.tv_nsec / NSEC_PER_USEC;
if (!copy_to_user(p, &rtv, sizeof(rtv)))
return ret;
- } else if (!copy_to_user(p, &rts, sizeof(rts)))
+ } else if (!put_timespec64(&rts, p))
return ret;
/*
const sigset_t __user *sigmask, size_t sigsetsize)
{
sigset_t ksigmask, sigsaved;
- struct timespec ts;
- struct timespec64 ts64, end_time, *to = NULL;
+ struct timespec64 ts, end_time, *to = NULL;
int ret;
if (tsp) {
- if (copy_from_user(&ts, tsp, sizeof(ts)))
+ if (get_timespec64(&ts, tsp))
return -EFAULT;
- ts64 = timespec_to_timespec64(ts);
to = &end_time;
- if (poll_select_set_timeout(to, ts64.tv_sec, ts64.tv_nsec))
+ if (poll_select_set_timeout(to, ts.tv_sec, ts.tv_nsec))
return -EINVAL;
}
size_t, sigsetsize)
{
sigset_t ksigmask, sigsaved;
- struct timespec ts;
- struct timespec64 end_time, *to = NULL;
+ struct timespec64 ts, end_time, *to = NULL;
int ret;
if (tsp) {
- if (copy_from_user(&ts, tsp, sizeof(ts)))
+ if (get_timespec64(&ts, tsp))
return -EFAULT;
to = &end_time;
#define __COMPAT_NFDBITS (8 * sizeof(compat_ulong_t))
static
-int compat_poll_select_copy_remaining(struct timespec *end_time, void __user *p,
+int compat_poll_select_copy_remaining(struct timespec64 *end_time, void __user *p,
int timeval, int ret)
{
- struct timespec ts;
+ struct timespec64 ts;
if (!p)
return ret;
if (!end_time->tv_sec && !end_time->tv_nsec)
return ret;
- ktime_get_ts(&ts);
- ts = timespec_sub(*end_time, ts);
+ ktime_get_ts64(&ts);
+ ts = timespec64_sub(*end_time, ts);
if (ts.tv_sec < 0)
ts.tv_sec = ts.tv_nsec = 0;
if (!copy_to_user(p, &rtv, sizeof(rtv)))
return ret;
} else {
- struct compat_timespec rts;
-
- rts.tv_sec = ts.tv_sec;
- rts.tv_nsec = ts.tv_nsec;
-
- if (!copy_to_user(p, &rts, sizeof(rts)))
+ if (!compat_put_timespec64(&ts, p))
return ret;
}
/*
*/
static int compat_core_sys_select(int n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp, compat_ulong_t __user *exp,
- struct timespec *end_time)
+ struct timespec64 *end_time)
{
fd_set_bits fds;
void *bits;
compat_ulong_t __user *, outp, compat_ulong_t __user *, exp,
struct compat_timeval __user *, tvp)
{
- struct timespec end_time, *to = NULL;
+ struct timespec64 end_time, *to = NULL;
struct compat_timeval tv;
int ret;
struct compat_timespec __user *tsp, compat_sigset_t __user *sigmask,
compat_size_t sigsetsize)
{
- compat_sigset_t ss32;
sigset_t ksigmask, sigsaved;
- struct compat_timespec ts;
- struct timespec end_time, *to = NULL;
+ struct timespec64 ts, end_time, *to = NULL;
int ret;
if (tsp) {
- if (copy_from_user(&ts, tsp, sizeof(ts)))
+ if (compat_get_timespec64(&ts, tsp))
return -EFAULT;
to = &end_time;
if (sigmask) {
if (sigsetsize != sizeof(compat_sigset_t))
return -EINVAL;
- if (copy_from_user(&ss32, sigmask, sizeof(ss32)))
+ if (get_compat_sigset(&ksigmask, sigmask))
return -EFAULT;
- sigset_from_compat(&ksigmask, &ss32);
sigdelsetmask(&ksigmask, sigmask(SIGKILL)|sigmask(SIGSTOP));
sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved);
unsigned int, nfds, struct compat_timespec __user *, tsp,
const compat_sigset_t __user *, sigmask, compat_size_t, sigsetsize)
{
- compat_sigset_t ss32;
sigset_t ksigmask, sigsaved;
- struct compat_timespec ts;
- struct timespec end_time, *to = NULL;
+ struct timespec64 ts, end_time, *to = NULL;
int ret;
if (tsp) {
- if (copy_from_user(&ts, tsp, sizeof(ts)))
+ if (compat_get_timespec64(&ts, tsp))
return -EFAULT;
to = &end_time;
if (sigmask) {
if (sigsetsize != sizeof(compat_sigset_t))
return -EINVAL;
- if (copy_from_user(&ss32, sigmask, sizeof(ss32)))
+ if (get_compat_sigset(&ksigmask, sigmask))
return -EFAULT;
- sigset_from_compat(&ksigmask, &ss32);
sigdelsetmask(&ksigmask, sigmask(SIGKILL)|sigmask(SIGSTOP));
sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved);
compat_size_t, sigsetsize,
int, flags)
{
- compat_sigset_t ss32;
sigset_t tmp;
sigset_t __user *ksigmask;
if (sigsetsize != sizeof(compat_sigset_t))
return -EINVAL;
- if (copy_from_user(&ss32, sigmask, sizeof(ss32)))
+ if (get_compat_sigset(&tmp, sigmask))
return -EFAULT;
- sigset_from_compat(&tmp, &ss32);
ksigmask = compat_alloc_user_space(sizeof(sigset_t));
if (copy_to_user(ksigmask, &tmp, sizeof(sigset_t)))
return -EFAULT;
return lhs->tv_nsec - rhs->tv_nsec;
}
-extern int get_compat_itimerspec(struct itimerspec *dst,
- const struct compat_itimerspec __user *src);
-extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
- const struct itimerspec *src);
-
asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
struct timezone __user *tz);
asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
-extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat);
-extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set);
+extern int get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat);
+extern int put_compat_sigset(compat_sigset_t __user *compat,
+ const sigset_t *set, unsigned int size);
asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
return ret;
}
-int get_compat_itimerspec(struct itimerspec *dst,
- const struct compat_itimerspec __user *src)
-{
- if (__compat_get_timespec(&dst->it_interval, &src->it_interval) ||
- __compat_get_timespec(&dst->it_value, &src->it_value))
- return -EFAULT;
- return 0;
-}
-
-int put_compat_itimerspec(struct compat_itimerspec __user *dst,
- const struct itimerspec *src)
-{
- if (__compat_put_timespec(&src->it_interval, &dst->it_interval) ||
- __compat_put_timespec(&src->it_value, &dst->it_value))
- return -EFAULT;
- return 0;
-}
-
int get_compat_itimerspec64(struct itimerspec64 *its,
const struct compat_itimerspec __user *uits)
{
return -EFAULT;
}
-void
-sigset_from_compat(sigset_t *set, const compat_sigset_t *compat)
+int
+get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat)
{
+#ifdef __BIG_ENDIAN
+ compat_sigset_t v;
+ if (copy_from_user(&v, compat, sizeof(compat_sigset_t)))
+ return -EFAULT;
switch (_NSIG_WORDS) {
- case 4: set->sig[3] = compat->sig[6] | (((long)compat->sig[7]) << 32 );
- case 3: set->sig[2] = compat->sig[4] | (((long)compat->sig[5]) << 32 );
- case 2: set->sig[1] = compat->sig[2] | (((long)compat->sig[3]) << 32 );
- case 1: set->sig[0] = compat->sig[0] | (((long)compat->sig[1]) << 32 );
+ case 4: set->sig[3] = v.sig[6] | (((long)v.sig[7]) << 32 );
+ case 3: set->sig[2] = v.sig[4] | (((long)v.sig[5]) << 32 );
+ case 2: set->sig[1] = v.sig[2] | (((long)v.sig[3]) << 32 );
+ case 1: set->sig[0] = v.sig[0] | (((long)v.sig[1]) << 32 );
}
+#else
+ if (copy_from_user(set, compat, sizeof(compat_sigset_t)))
+ return -EFAULT;
+#endif
+ return 0;
}
-EXPORT_SYMBOL_GPL(sigset_from_compat);
+EXPORT_SYMBOL_GPL(get_compat_sigset);
-void
-sigset_to_compat(compat_sigset_t *compat, const sigset_t *set)
+int
+put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
+ unsigned int size)
{
+ /* size <= sizeof(compat_sigset_t) <= sizeof(sigset_t) */
+#ifdef __BIG_ENDIAN
+ compat_sigset_t v;
switch (_NSIG_WORDS) {
- case 4: compat->sig[7] = (set->sig[3] >> 32); compat->sig[6] = set->sig[3];
- case 3: compat->sig[5] = (set->sig[2] >> 32); compat->sig[4] = set->sig[2];
- case 2: compat->sig[3] = (set->sig[1] >> 32); compat->sig[2] = set->sig[1];
- case 1: compat->sig[1] = (set->sig[0] >> 32); compat->sig[0] = set->sig[0];
+ case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
+ case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
+ case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
+ case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
}
+ return copy_to_user(compat, &v, size) ? -EFAULT : 0;
+#else
+ return copy_to_user(compat, set, size) ? -EFAULT : 0;
+#endif
}
#ifdef CONFIG_NUMA
}
#endif
-COMPAT_SYSCALL_DEFINE2(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 (compat_put_timespec(&t, interval))
- return -EFAULT;
- return ret;
-}
-
/*
* Allocate user-space memory for the duration of a single system call,
* in order to marshall parameters inside a compat thunk.
#include <linux/init_task.h>
#include <linux/context_tracking.h>
#include <linux/rcupdate_wait.h>
+#include <linux/compat.h>
#include <linux/blkdev.h>
#include <linux/kprobes.h>
* Return: On success, 0 and the timeslice is in @interval. Otherwise,
* an error code.
*/
-SYSCALL_DEFINE2(sched_rr_get_interval, pid_t, pid,
- struct timespec __user *, interval)
+static int sched_rr_get_interval(pid_t pid, struct timespec64 *t)
{
struct task_struct *p;
unsigned int time_slice;
struct rq_flags rf;
- struct timespec t;
struct rq *rq;
int retval;
task_rq_unlock(rq, p, &rf);
rcu_read_unlock();
- jiffies_to_timespec(time_slice, &t);
- retval = copy_to_user(interval, &t, sizeof(t)) ? -EFAULT : 0;
- return retval;
+ jiffies_to_timespec64(time_slice, t);
+ return 0;
out_unlock:
rcu_read_unlock();
return retval;
}
+SYSCALL_DEFINE2(sched_rr_get_interval, pid_t, pid,
+ struct timespec __user *, interval)
+{
+ struct timespec64 t;
+ int retval = sched_rr_get_interval(pid, &t);
+
+ if (retval == 0)
+ retval = put_timespec64(&t, interval);
+
+ return retval;
+}
+
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE2(sched_rr_get_interval,
+ compat_pid_t, pid,
+ struct compat_timespec __user *, interval)
+{
+ struct timespec64 t;
+ int retval = sched_rr_get_interval(pid, &t);
+
+ if (retval == 0)
+ retval = compat_put_timespec64(&t, interval);
+ return retval;
+}
+#endif
+
void sched_show_task(struct task_struct *p)
{
unsigned long free = 0;
COMPAT_SYSCALL_DEFINE4(rt_sigprocmask, int, how, compat_sigset_t __user *, nset,
compat_sigset_t __user *, oset, compat_size_t, sigsetsize)
{
-#ifdef __BIG_ENDIAN
sigset_t old_set = current->blocked;
/* XXX: Don't preclude handling different sized sigset_t's. */
return -EINVAL;
if (nset) {
- compat_sigset_t new32;
sigset_t new_set;
int error;
- if (copy_from_user(&new32, nset, sizeof(compat_sigset_t)))
+ if (get_compat_sigset(&new_set, nset))
return -EFAULT;
-
- sigset_from_compat(&new_set, &new32);
sigdelsetmask(&new_set, sigmask(SIGKILL)|sigmask(SIGSTOP));
error = sigprocmask(how, &new_set, NULL);
if (error)
return error;
}
- if (oset) {
- compat_sigset_t old32;
- sigset_to_compat(&old32, &old_set);
- if (copy_to_user(oset, &old32, sizeof(compat_sigset_t)))
- return -EFAULT;
- }
- return 0;
-#else
- return sys_rt_sigprocmask(how, (sigset_t __user *)nset,
- (sigset_t __user *)oset, sigsetsize);
-#endif
+ return oset ? put_compat_sigset(oset, &old_set, sizeof(*oset)) : 0;
}
#endif
-static int do_sigpending(void *set, unsigned long sigsetsize)
+static int do_sigpending(sigset_t *set)
{
- if (sigsetsize > sizeof(sigset_t))
- return -EINVAL;
-
spin_lock_irq(¤t->sighand->siglock);
sigorsets(set, ¤t->pending.signal,
¤t->signal->shared_pending.signal);
SYSCALL_DEFINE2(rt_sigpending, sigset_t __user *, uset, size_t, sigsetsize)
{
sigset_t set;
- int err = do_sigpending(&set, sigsetsize);
+ int err;
+
+ if (sigsetsize > sizeof(*uset))
+ return -EINVAL;
+
+ err = do_sigpending(&set);
if (!err && copy_to_user(uset, &set, sigsetsize))
err = -EFAULT;
return err;
COMPAT_SYSCALL_DEFINE2(rt_sigpending, compat_sigset_t __user *, uset,
compat_size_t, sigsetsize)
{
-#ifdef __BIG_ENDIAN
sigset_t set;
- int err = do_sigpending(&set, sigsetsize);
- if (!err) {
- compat_sigset_t set32;
- sigset_to_compat(&set32, &set);
- /* we can get here only if sigsetsize <= sizeof(set) */
- if (copy_to_user(uset, &set32, sigsetsize))
- err = -EFAULT;
- }
+ int err;
+
+ if (sigsetsize > sizeof(*uset))
+ return -EINVAL;
+
+ err = do_sigpending(&set);
+ if (!err)
+ err = put_compat_sigset(uset, &set, sigsetsize);
return err;
-#else
- return sys_rt_sigpending((sigset_t __user *)uset, sigsetsize);
-#endif
}
#endif
struct compat_siginfo __user *, uinfo,
struct compat_timespec __user *, uts, compat_size_t, sigsetsize)
{
- compat_sigset_t s32;
sigset_t s;
struct timespec t;
siginfo_t info;
if (sigsetsize != sizeof(sigset_t))
return -EINVAL;
- if (copy_from_user(&s32, uthese, sizeof(compat_sigset_t)))
+ if (get_compat_sigset(&s, uthese))
return -EFAULT;
- sigset_from_compat(&s, &s32);
if (uts) {
if (compat_get_timespec(&t, uts))
#ifdef CONFIG_COMPAT
COMPAT_SYSCALL_DEFINE1(sigpending, compat_old_sigset_t __user *, set32)
{
-#ifdef __BIG_ENDIAN
sigset_t set;
- int err = do_sigpending(&set, sizeof(set.sig[0]));
+ int err = do_sigpending(&set);
if (!err)
err = put_user(set.sig[0], set32);
return err;
-#else
- return sys_rt_sigpending((sigset_t __user *)set32, sizeof(*set32));
-#endif
}
#endif
compat_size_t, sigsetsize)
{
struct k_sigaction new_ka, old_ka;
- compat_sigset_t mask;
#ifdef __ARCH_HAS_SA_RESTORER
compat_uptr_t restorer;
#endif
ret |= get_user(restorer, &act->sa_restorer);
new_ka.sa.sa_restorer = compat_ptr(restorer);
#endif
- ret |= copy_from_user(&mask, &act->sa_mask, sizeof(mask));
+ ret |= get_compat_sigset(&new_ka.sa.sa_mask, &act->sa_mask);
ret |= get_user(new_ka.sa.sa_flags, &act->sa_flags);
if (ret)
return -EFAULT;
- sigset_from_compat(&new_ka.sa.sa_mask, &mask);
}
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
- sigset_to_compat(&mask, &old_ka.sa.sa_mask);
ret = put_user(ptr_to_compat(old_ka.sa.sa_handler),
&oact->sa_handler);
- ret |= copy_to_user(&oact->sa_mask, &mask, sizeof(mask));
+ ret |= put_compat_sigset(&oact->sa_mask, &old_ka.sa.sa_mask,
+ sizeof(oact->sa_mask));
ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags);
#ifdef __ARCH_HAS_SA_RESTORER
ret |= put_user(ptr_to_compat(old_ka.sa.sa_restorer),
#ifdef CONFIG_COMPAT
COMPAT_SYSCALL_DEFINE2(rt_sigsuspend, compat_sigset_t __user *, unewset, compat_size_t, sigsetsize)
{
-#ifdef __BIG_ENDIAN
sigset_t newset;
- compat_sigset_t newset32;
/* XXX: Don't preclude handling different sized sigset_t's. */
if (sigsetsize != sizeof(sigset_t))
return -EINVAL;
- if (copy_from_user(&newset32, unewset, sizeof(compat_sigset_t)))
+ if (get_compat_sigset(&newset, unewset))
return -EFAULT;
- sigset_from_compat(&newset, &newset32);
return sigsuspend(&newset);
-#else
- /* on little-endian bitmaps don't care about granularity */
- return sys_rt_sigsuspend((sigset_t __user *)unewset, sigsetsize);
-#endif
}
#endif
case KVM_SET_SIGNAL_MASK: {
struct kvm_signal_mask __user *sigmask_arg = argp;
struct kvm_signal_mask kvm_sigmask;
- compat_sigset_t csigset;
sigset_t sigset;
if (argp) {
sizeof(kvm_sigmask)))
goto out;
r = -EINVAL;
- if (kvm_sigmask.len != sizeof(csigset))
+ if (kvm_sigmask.len != sizeof(compat_sigset_t))
goto out;
r = -EFAULT;
- if (copy_from_user(&csigset, sigmask_arg->sigset,
- sizeof(csigset)))
+ if (get_compat_sigset(&sigset, (void *)sigmask_arg->sigset))
goto out;
- sigset_from_compat(&sigset, &csigset);
r = kvm_vcpu_ioctl_set_sigmask(vcpu, &sigset);
} else
r = kvm_vcpu_ioctl_set_sigmask(vcpu, NULL);
projects / linux-2.6-microblaze.git / commitdiff