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author | Al Viro <viro@zeniv.linux.org.uk> | 2017-04-08 18:13:00 -0400 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-04-17 12:52:25 -0400 |
commit | ac565de31c950723539af55542c7507bc1faa60a (patch) | |
tree | b3defe3d51dc5d9f00318a0f206ca29ce5d20cdd /fs/compat.c | |
parent | 80f0cce6aadebf6caf74d1f8ceb4b008ca72a9e9 (diff) | |
download | op-kernel-dev-ac565de31c950723539af55542c7507bc1faa60a.zip op-kernel-dev-ac565de31c950723539af55542c7507bc1faa60a.tar.gz |
stat: move compat syscalls from compat.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/compat.c')
-rw-r--r-- | fs/compat.c | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/fs/compat.c b/fs/compat.c index 000af26..e24a764 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -54,89 +54,6 @@ #include <asm/ioctls.h> #include "internal.h" -static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf) -{ - struct compat_stat tmp; - - if (!old_valid_dev(stat->dev) || !old_valid_dev(stat->rdev)) - return -EOVERFLOW; - - memset(&tmp, 0, sizeof(tmp)); - tmp.st_dev = old_encode_dev(stat->dev); - tmp.st_ino = stat->ino; - 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; - if (tmp.st_nlink != stat->nlink) - return -EOVERFLOW; - SET_UID(tmp.st_uid, from_kuid_munged(current_user_ns(), stat->uid)); - SET_GID(tmp.st_gid, from_kgid_munged(current_user_ns(), stat->gid)); - tmp.st_rdev = old_encode_dev(stat->rdev); - if ((u64) stat->size > MAX_NON_LFS) - return -EOVERFLOW; - tmp.st_size = stat->size; - tmp.st_atime = stat->atime.tv_sec; - tmp.st_atime_nsec = stat->atime.tv_nsec; - tmp.st_mtime = stat->mtime.tv_sec; - tmp.st_mtime_nsec = stat->mtime.tv_nsec; - tmp.st_ctime = stat->ctime.tv_sec; - tmp.st_ctime_nsec = stat->ctime.tv_nsec; - tmp.st_blocks = stat->blocks; - tmp.st_blksize = stat->blksize; - return copy_to_user(ubuf, &tmp, sizeof(tmp)) ? -EFAULT : 0; -} - -COMPAT_SYSCALL_DEFINE2(newstat, const char __user *, filename, - struct compat_stat __user *, statbuf) -{ - struct kstat stat; - int error; - - error = vfs_stat(filename, &stat); - if (error) - return error; - return cp_compat_stat(&stat, statbuf); -} - -COMPAT_SYSCALL_DEFINE2(newlstat, const char __user *, filename, - struct compat_stat __user *, statbuf) -{ - struct kstat stat; - int error; - - error = vfs_lstat(filename, &stat); - if (error) - return error; - return cp_compat_stat(&stat, statbuf); -} - -#ifndef __ARCH_WANT_STAT64 -COMPAT_SYSCALL_DEFINE4(newfstatat, unsigned int, dfd, - const char __user *, filename, - struct compat_stat __user *, statbuf, int, flag) -{ - struct kstat stat; - int error; - - error = vfs_fstatat(dfd, filename, &stat, flag); - if (error) - return error; - return cp_compat_stat(&stat, statbuf); -} -#endif - -COMPAT_SYSCALL_DEFINE2(newfstat, unsigned int, fd, - struct compat_stat __user *, statbuf) -{ - struct kstat stat; - int error = vfs_fstat(fd, &stat); - - if (!error) - error = cp_compat_stat(&stat, statbuf); - return error; -} - /* A write operation does a read from user space and vice versa */ #define vrfy_dir(type) ((type) == READ ? VERIFY_WRITE : VERIFY_READ) |