nfsd: nfsd should drop CAP_MKNOD for non-root

[safe/jmp/linux-2.6] / fs / open.c

diff --git a/fs/open.c b/fs/open.c
index f6c2f56..a3a78ce 100644 (file)
--- a/fs/open.c
+++ b/fs/open.c
@@ -174,7 +174,7 @@ out:
        return error;
 }
 
-asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, struct statfs64 __user *buf)
+SYSCALL_DEFINE3(fstatfs64, unsigned int, fd, size_t, sz, struct statfs64 __user *, buf)
 {
        struct file * file;
        struct statfs64 tmp;
@@ -447,7 +447,7 @@ SYSCALL_ALIAS(sys_fallocate, SyS_fallocate);
  * We do this by temporarily clearing all FS-related capabilities and
  * switching the fsuid/fsgid around to the real ones.
  */
-asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode)
+SYSCALL_DEFINE3(faccessat, int, dfd, const char __user *, filename, int, mode)
 {
        const struct cred *old_cred;
        struct cred *override_cred;
@@ -517,12 +517,12 @@ out:
        return res;
 }
 
-asmlinkage long sys_access(const char __user *filename, int mode)
+SYSCALL_DEFINE2(access, const char __user *, filename, int, mode)
 {
        return sys_faccessat(AT_FDCWD, filename, mode);
 }
 
-asmlinkage long sys_chdir(const char __user * filename)
+SYSCALL_DEFINE1(chdir, const char __user *, filename)
 {
        struct path path;
        int error;
@@ -543,7 +543,7 @@ out:
        return error;
 }
 
-asmlinkage long sys_fchdir(unsigned int fd)
+SYSCALL_DEFINE1(fchdir, unsigned int, fd)
 {
        struct file *file;
        struct inode *inode;
@@ -569,7 +569,7 @@ out:
        return error;
 }
 
-asmlinkage long sys_chroot(const char __user * filename)
+SYSCALL_DEFINE1(chroot, const char __user *, filename)
 {
        struct path path;
        int error;
@@ -594,7 +594,7 @@ out:
        return error;
 }
 
-asmlinkage long sys_fchmod(unsigned int fd, mode_t mode)
+SYSCALL_DEFINE2(fchmod, unsigned int, fd, mode_t, mode)
 {
        struct inode * inode;
        struct dentry * dentry;
@@ -628,8 +628,7 @@ out:
        return err;
 }
 
-asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
-                            mode_t mode)
+SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, mode_t, mode)
 {
        struct path path;
        struct inode *inode;
@@ -658,7 +657,7 @@ out:
        return error;
 }
 
-asmlinkage long sys_chmod(const char __user *filename, mode_t mode)
+SYSCALL_DEFINE2(chmod, const char __user *, filename, mode_t, mode)
 {
        return sys_fchmodat(AT_FDCWD, filename, mode);
 }
@@ -688,7 +687,7 @@ static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
        return error;
 }
 
-asmlinkage long sys_chown(const char __user * filename, uid_t user, gid_t group)
+SYSCALL_DEFINE3(chown, const char __user *, filename, uid_t, user, gid_t, group)
 {
        struct path path;
        int error;
@@ -707,8 +706,8 @@ out:
        return error;
 }
 
-asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
-                            gid_t group, int flag)
+SYSCALL_DEFINE5(fchownat, int, dfd, const char __user *, filename, uid_t, user,
+               gid_t, group, int, flag)
 {
        struct path path;
        int error = -EINVAL;
@@ -732,7 +731,7 @@ out:
        return error;
 }
 
-asmlinkage long sys_lchown(const char __user * filename, uid_t user, gid_t group)
+SYSCALL_DEFINE3(lchown, const char __user *, filename, uid_t, user, gid_t, group)
 {
        struct path path;
        int error;
@@ -751,8 +750,7 @@ out:
        return error;
 }
 
-
-asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group)
+SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group)
 {
        struct file * file;
        int error = -EBADF;
@@ -1048,7 +1046,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, int mode)
        return fd;
 }
 
-asmlinkage long sys_open(const char __user *filename, int flags, int mode)
+SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, int, mode)
 {
        long ret;
 
@@ -1061,8 +1059,8 @@ asmlinkage long sys_open(const char __user *filename, int flags, int mode)
        return ret;
 }
 
-asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
-                          int mode)
+SYSCALL_DEFINE4(openat, int, dfd, const char __user *, filename, int, flags,
+               int, mode)
 {
        long ret;
 
@@ -1081,7 +1079,7 @@ asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
  * For backward compatibility?  Maybe this should be moved
  * into arch/i386 instead?
  */
-asmlinkage long sys_creat(const char __user * pathname, int mode)
+SYSCALL_DEFINE2(creat, const char __user *, pathname, int, mode)
 {
        return sys_open(pathname, O_CREAT | O_WRONLY | O_TRUNC, mode);
 }
@@ -1117,7 +1115,7 @@ EXPORT_SYMBOL(filp_close);
  * releasing the fd. This ensures that one clone task can't release
  * an fd while another clone is opening it.
  */
-asmlinkage long sys_close(unsigned int fd)
+SYSCALL_DEFINE1(close, unsigned int, fd)
 {
        struct file * filp;
        struct files_struct *files = current->files;
@@ -1150,14 +1148,13 @@ out_unlock:
        spin_unlock(&files->file_lock);
        return -EBADF;
 }
-
 EXPORT_SYMBOL(sys_close);
 
 /*
  * This routine simulates a hangup on the tty, to arrange that users
  * are given clean terminals at login time.
  */
-asmlinkage long sys_vhangup(void)
+SYSCALL_DEFINE0(vhangup)
 {
        if (capable(CAP_SYS_TTY_CONFIG)) {
                tty_vhangup_self();