#include <linux/smb_mount.h>
#include <linux/ncp_mount.h>
#include <linux/nfs4_mount.h>
-#include <linux/smp_lock.h>
#include <linux/syscalls.h>
#include <linux/ctype.h>
#include <linux/module.h>
#include <linux/dirent.h>
#include <linux/fsnotify.h>
#include <linux/highuid.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/syscall.h>
#include <linux/personality.h>
#include <linux/rwsem.h>
#include <linux/poll.h>
#include <linux/mm.h>
#include <linux/eventpoll.h>
+#include <linux/fs_struct.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
get_compat_timespec(&tv[1], &t[1]))
return -EFAULT;
- if ((tv[0].tv_nsec == UTIME_OMIT || tv[0].tv_nsec == UTIME_NOW)
- && tv[0].tv_sec != 0)
- return -EINVAL;
- if ((tv[1].tv_nsec == UTIME_OMIT || tv[1].tv_nsec == UTIME_NOW)
- && tv[1].tv_sec != 0)
- return -EINVAL;
-
if (tv[0].tv_nsec == UTIME_OMIT && tv[1].tv_nsec == UTIME_OMIT)
return 0;
}
struct compat_stat __user *statbuf)
{
struct kstat stat;
- int error = vfs_stat_fd(AT_FDCWD, filename, &stat);
+ int error;
- if (!error)
- error = cp_compat_stat(&stat, statbuf);
- return error;
+ error = vfs_stat(filename, &stat);
+ if (error)
+ return error;
+ return cp_compat_stat(&stat, statbuf);
}
asmlinkage long compat_sys_newlstat(char __user * filename,
struct compat_stat __user *statbuf)
{
struct kstat stat;
- int error = vfs_lstat_fd(AT_FDCWD, filename, &stat);
+ int error;
- if (!error)
- error = cp_compat_stat(&stat, statbuf);
- return error;
+ error = vfs_lstat(filename, &stat);
+ if (error)
+ return error;
+ return cp_compat_stat(&stat, statbuf);
}
#ifndef __ARCH_WANT_STAT64
struct compat_stat __user *statbuf, int flag)
{
struct kstat stat;
- int error = -EINVAL;
-
- if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
- goto out;
-
- if (flag & AT_SYMLINK_NOFOLLOW)
- error = vfs_lstat_fd(dfd, filename, &stat);
- else
- error = vfs_stat_fd(dfd, filename, &stat);
-
- if (!error)
- error = cp_compat_stat(&stat, statbuf);
+ int error;
-out:
- return error;
+ error = vfs_fstatat(dfd, filename, &stat, flag);
+ if (error)
+ return error;
+ return cp_compat_stat(&stat, statbuf);
}
#endif
ret = sys_fcntl(fd, cmd, (unsigned long)&f);
set_fs(old_fs);
if (cmd == F_GETLK && ret == 0) {
- /* GETLK was successfule and we need to return the data...
+ /* GETLK was successful and we need to return the data...
* but it needs to fit in the compat structure.
* l_start shouldn't be too big, unless the original
* start + end is greater than COMPAT_OFF_T_MAX, in which
char __user * type, unsigned long flags,
void __user * data)
{
- unsigned long type_page;
+ char *kernel_type;
unsigned long data_page;
- unsigned long dev_page;
+ char *kernel_dev;
char *dir_page;
int retval;
- retval = copy_mount_options (type, &type_page);
+ retval = copy_mount_string(type, &kernel_type);
if (retval < 0)
goto out;
if (IS_ERR(dir_page))
goto out1;
- retval = copy_mount_options (dev_name, &dev_page);
+ retval = copy_mount_string(dev_name, &kernel_dev);
if (retval < 0)
goto out2;
- retval = copy_mount_options (data, &data_page);
+ retval = copy_mount_options(data, &data_page);
if (retval < 0)
goto out3;
retval = -EINVAL;
- if (type_page && data_page) {
- if (!strcmp((char *)type_page, SMBFS_NAME)) {
+ if (kernel_type && data_page) {
+ if (!strcmp(kernel_type, SMBFS_NAME)) {
do_smb_super_data_conv((void *)data_page);
- } else if (!strcmp((char *)type_page, NCPFS_NAME)) {
+ } else if (!strcmp(kernel_type, NCPFS_NAME)) {
do_ncp_super_data_conv((void *)data_page);
- } else if (!strcmp((char *)type_page, NFS4_NAME)) {
+ } else if (!strcmp(kernel_type, NFS4_NAME)) {
if (do_nfs4_super_data_conv((void *) data_page))
goto out4;
}
}
- lock_kernel();
- retval = do_mount((char*)dev_page, dir_page, (char*)type_page,
+ retval = do_mount(kernel_dev, dir_page, kernel_type,
flags, (void*)data_page);
- unlock_kernel();
out4:
free_page(data_page);
out3:
- free_page(dev_page);
+ kfree(kernel_dev);
out2:
putname(dir_page);
out1:
- free_page(type_page);
+ kfree(kernel_type);
out:
return retval;
}
unsigned long vlen)
{
struct file *file;
+ int fput_needed;
ssize_t ret;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
return -EBADF;
ret = compat_readv(file, vec, vlen, &file->f_pos);
- fput(file);
+ fput_light(file, fput_needed);
return ret;
}
asmlinkage ssize_t
compat_sys_preadv(unsigned long fd, const struct compat_iovec __user *vec,
- unsigned long vlen, u32 pos_high, u32 pos_low)
+ unsigned long vlen, u32 pos_low, u32 pos_high)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
struct file *file;
+ int fput_needed;
ssize_t ret;
if (pos < 0)
return -EINVAL;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
return -EBADF;
ret = compat_readv(file, vec, vlen, &pos);
- fput(file);
+ fput_light(file, fput_needed);
return ret;
}
unsigned long vlen)
{
struct file *file;
+ int fput_needed;
ssize_t ret;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
return -EBADF;
ret = compat_writev(file, vec, vlen, &file->f_pos);
- fput(file);
+ fput_light(file, fput_needed);
return ret;
}
asmlinkage ssize_t
compat_sys_pwritev(unsigned long fd, const struct compat_iovec __user *vec,
- unsigned long vlen, u32 pos_high, u32 pos_low)
+ unsigned long vlen, u32 pos_low, u32 pos_high)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
struct file *file;
+ int fput_needed;
ssize_t ret;
if (pos < 0)
return -EINVAL;
- file = fget(fd);
+ file = fget_light(fd, &fput_needed);
if (!file)
return -EBADF;
ret = compat_writev(file, vec, vlen, &pos);
- fput(file);
+ fput_light(file, fput_needed);
return ret;
}
struct linux_binprm *bprm;
struct file *file;
struct files_struct *displaced;
+ bool clear_in_exec;
int retval;
retval = unshare_files(&displaced);
if (!bprm)
goto out_files;
- retval = mutex_lock_interruptible(¤t->cred_exec_mutex);
+ retval = prepare_bprm_creds(bprm);
+ if (retval)
+ goto out_free;
+
+ retval = check_unsafe_exec(bprm);
if (retval < 0)
goto out_free;
+ clear_in_exec = retval;
current->in_execve = 1;
- retval = -ENOMEM;
- bprm->cred = prepare_exec_creds();
- if (!bprm->cred)
- goto out_unlock;
- check_unsafe_exec(bprm);
-
file = open_exec(filename);
retval = PTR_ERR(file);
if (IS_ERR(file))
- goto out_unlock;
+ goto out_unmark;
sched_exec();
if (retval < 0)
goto out;
+ current->stack_start = current->mm->start_stack;
+
/* execve succeeded */
+ current->fs->in_exec = 0;
current->in_execve = 0;
- mutex_unlock(¤t->cred_exec_mutex);
acct_update_integrals(current);
free_bprm(bprm);
if (displaced)
fput(bprm->file);
}
-out_unlock:
+out_unmark:
+ if (clear_in_exec)
+ current->fs->in_exec = 0;
current->in_execve = 0;
- mutex_unlock(¤t->cred_exec_mutex);
out_free:
free_bprm(bprm);
return ret;
}
+struct compat_sel_arg_struct {
+ compat_ulong_t n;
+ compat_uptr_t inp;
+ compat_uptr_t outp;
+ compat_uptr_t exp;
+ compat_uptr_t tvp;
+};
+
+asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg)
+{
+ struct compat_sel_arg_struct a;
+
+ if (copy_from_user(&a, arg, sizeof(a)))
+ return -EFAULT;
+ return compat_sys_select(a.n, compat_ptr(a.inp), compat_ptr(a.outp),
+ compat_ptr(a.exp), compat_ptr(a.tvp));
+}
+
#ifdef HAVE_SET_RESTORE_SIGMASK
static long do_compat_pselect(int n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp, compat_ulong_t __user *exp,