Differential D17812 Diff 49956 head/sys/kern/vfs_syscalls.c

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head/sys/kern/vfs_syscalls.c

Show First 20 Lines • Show All 292 Lines • ▼ Show 20 Lines	sys_statfs(struct thread td, struct statfs_args uap)
error = kern_statfs(td, uap->path, UIO_USERSPACE, sfp);		error = kern_statfs(td, uap->path, UIO_USERSPACE, sfp);
if (error == 0)		if (error == 0)
error = copyout(sfp, uap->buf, sizeof(struct statfs));		error = copyout(sfp, uap->buf, sizeof(struct statfs));
free(sfp, M_STATFS);		free(sfp, M_STATFS);
return (error);		return (error);
}		}

int		int
kern_statfs(struct thread td, char path, enum uio_seg pathseg,		kern_statfs(struct thread td, const char path, enum uio_seg pathseg,
struct statfs *buf)		struct statfs *buf)
{		{
struct mount *mp;		struct mount *mp;
struct nameidata nd;		struct nameidata nd;
int error;		int error;

NDINIT(&nd, LOOKUP, FOLLOW \| LOCKSHARED \| LOCKLEAF \| AUDITVNODE1,		NDINIT(&nd, LOOKUP, FOLLOW \| LOCKSHARED \| LOCKLEAF \| AUDITVNODE1,
pathseg, path, td);		pathseg, path, td);
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int		int
sys_chdir(struct thread td, struct chdir_args uap)		sys_chdir(struct thread td, struct chdir_args uap)
{		{

return (kern_chdir(td, uap->path, UIO_USERSPACE));		return (kern_chdir(td, uap->path, UIO_USERSPACE));
}		}

int		int
kern_chdir(struct thread td, char path, enum uio_seg pathseg)		kern_chdir(struct thread td, const char path, enum uio_seg pathseg)
{		{
struct nameidata nd;		struct nameidata nd;
int error;		int error;

NDINIT(&nd, LOOKUP, FOLLOW \| LOCKSHARED \| LOCKLEAF \| AUDITVNODE1,		NDINIT(&nd, LOOKUP, FOLLOW \| LOCKSHARED \| LOCKLEAF \| AUDITVNODE1,
pathseg, path, td);		pathseg, path, td);
if ((error = namei(&nd)) != 0)		if ((error = namei(&nd)) != 0)
return (error);		return (error);
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{		{

AUDIT_ARG_FD(uap->fd);		AUDIT_ARG_FD(uap->fd);
return (kern_openat(td, uap->fd, uap->path, UIO_USERSPACE, uap->flag,		return (kern_openat(td, uap->fd, uap->path, UIO_USERSPACE, uap->flag,
uap->mode));		uap->mode));
}		}

int		int
kern_openat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_openat(struct thread td, int fd, const char path, enum uio_seg pathseg,
int flags, int mode)		int flags, int mode)
{		{
struct proc *p = td->td_proc;		struct proc *p = td->td_proc;
struct filedesc *fdp = p->p_fd;		struct filedesc *fdp = p->p_fd;
struct file *fp;		struct file *fp;
struct vnode *vp;		struct vnode *vp;
struct nameidata nd;		struct nameidata nd;
cap_rights_t rights;		cap_rights_t rights;
▲ Show 20 Lines • Show All 180 Lines • ▼ Show 20 Lines
{		{

return (kern_mknodat(td, uap->fd, uap->path, UIO_USERSPACE, uap->mode,		return (kern_mknodat(td, uap->fd, uap->path, UIO_USERSPACE, uap->mode,
uap->dev));		uap->dev));
}		}
#endif /* COMPAT_FREEBSD11 */		#endif /* COMPAT_FREEBSD11 */

int		int
kern_mknodat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_mknodat(struct thread td, int fd, const char path, enum uio_seg pathseg,
int mode, dev_t dev)		int mode, dev_t dev)
{		{
struct vnode *vp;		struct vnode *vp;
struct mount *mp;		struct mount *mp;
struct vattr vattr;		struct vattr vattr;
struct nameidata nd;		struct nameidata nd;
int error, whiteout = 0;		int error, whiteout = 0;

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sys_mkfifoat(struct thread td, struct mkfifoat_args uap)		sys_mkfifoat(struct thread td, struct mkfifoat_args uap)
{		{

return (kern_mkfifoat(td, uap->fd, uap->path, UIO_USERSPACE,		return (kern_mkfifoat(td, uap->fd, uap->path, UIO_USERSPACE,
uap->mode));		uap->mode));
}		}

int		int
kern_mkfifoat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_mkfifoat(struct thread td, int fd, const char path,
int mode)		enum uio_seg pathseg, int mode)
{		{
struct mount *mp;		struct mount *mp;
struct vattr vattr;		struct vattr vattr;
struct nameidata nd;		struct nameidata nd;
int error;		int error;

AUDIT_ARG_MODE(mode);		AUDIT_ARG_MODE(mode);
restart:		restart:
▲ Show 20 Lines • Show All 115 Lines • ▼ Show 20 Lines	if (hardlink_check_gid && !groupmember(va.va_gid, cred)) {
if (error != 0)		if (error != 0)
return (error);		return (error);
}		}

return (0);		return (0);
}		}

int		int
kern_linkat(struct thread td, int fd1, int fd2, char path1, char *path2,		kern_linkat(struct thread td, int fd1, int fd2, const char path1,
enum uio_seg segflg, int follow)		const char *path2, enum uio_seg segflg, int follow)
{		{
struct vnode *vp;		struct vnode *vp;
struct mount *mp;		struct mount *mp;
struct nameidata nd;		struct nameidata nd;
int error;		int error;

again:		again:
bwillwrite();		bwillwrite();
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sys_symlinkat(struct thread td, struct symlinkat_args uap)		sys_symlinkat(struct thread td, struct symlinkat_args uap)
{		{

return (kern_symlinkat(td, uap->path1, uap->fd, uap->path2,		return (kern_symlinkat(td, uap->path1, uap->fd, uap->path2,
UIO_USERSPACE));		UIO_USERSPACE));
}		}

int		int
kern_symlinkat(struct thread td, char path1, int fd, char *path2,		kern_symlinkat(struct thread td, const char path1, int fd, const char *path2,
enum uio_seg segflg)		enum uio_seg segflg)
{		{
struct mount *mp;		struct mount *mp;
struct vattr vattr;		struct vattr vattr;
char *syspath;		const char *syspath;
		char *tmppath;
struct nameidata nd;		struct nameidata nd;
int error;		int error;

if (segflg == UIO_SYSSPACE) {		if (segflg == UIO_SYSSPACE) {
syspath = path1;		syspath = path1;
} else {		} else {
syspath = uma_zalloc(namei_zone, M_WAITOK);		tmppath = uma_zalloc(namei_zone, M_WAITOK);
if ((error = copyinstr(path1, syspath, MAXPATHLEN, NULL)) != 0)		if ((error = copyinstr(path1, tmppath, MAXPATHLEN, NULL)) != 0)
goto out;		goto out;
		syspath = tmppath;
}		}
AUDIT_ARG_TEXT(syspath);		AUDIT_ARG_TEXT(syspath);
restart:		restart:
bwillwrite();		bwillwrite();
NDINIT_ATRIGHTS(&nd, CREATE, LOCKPARENT \| SAVENAME \| AUDITVNODE1 \|		NDINIT_ATRIGHTS(&nd, CREATE, LOCKPARENT \| SAVENAME \| AUDITVNODE1 \|
NOCACHE, segflg, path2, fd, &cap_symlinkat_rights,		NOCACHE, segflg, path2, fd, &cap_symlinkat_rights,
td);		td);
if ((error = namei(&nd)) != 0)		if ((error = namei(&nd)) != 0)
Show All 30 Lines
#ifdef MAC		#ifdef MAC
out2:		out2:
#endif		#endif
NDFREE(&nd, NDF_ONLY_PNBUF);		NDFREE(&nd, NDF_ONLY_PNBUF);
vput(nd.ni_dvp);		vput(nd.ni_dvp);
vn_finished_write(mp);		vn_finished_write(mp);
out:		out:
if (segflg != UIO_SYSSPACE)		if (segflg != UIO_SYSSPACE)
uma_zfree(namei_zone, syspath);		uma_zfree(namei_zone, tmppath);
return (error);		return (error);
}		}

/*		/*
* Delete a whiteout from the filesystem.		* Delete a whiteout from the filesystem.
*/		*/
#ifndef _SYS_SYSPROTO_H_		#ifndef _SYS_SYSPROTO_H_
struct undelete_args {		struct undelete_args {
▲ Show 20 Lines • Show All 60 Lines • ▼ Show 20 Lines	struct unlinkat_args {
char *path;		char *path;
int flag;		int flag;
};		};
#endif		#endif
int		int
sys_unlinkat(struct thread td, struct unlinkat_args uap)		sys_unlinkat(struct thread td, struct unlinkat_args uap)
{		{
int fd, flag;		int fd, flag;
char *path;		const char *path;

flag = uap->flag;		flag = uap->flag;
fd = uap->fd;		fd = uap->fd;
path = uap->path;		path = uap->path;

if ((flag & ~(AT_REMOVEDIR \| AT_BENEATH)) != 0)		if ((flag & ~(AT_REMOVEDIR \| AT_BENEATH)) != 0)
return (EINVAL);		return (EINVAL);

if ((uap->flag & AT_REMOVEDIR) != 0)		if ((uap->flag & AT_REMOVEDIR) != 0)
return (kern_rmdirat(td, fd, path, UIO_USERSPACE, flag));		return (kern_rmdirat(td, fd, path, UIO_USERSPACE, flag));
else		else
return (kern_unlinkat(td, fd, path, UIO_USERSPACE, flag, 0));		return (kern_unlinkat(td, fd, path, UIO_USERSPACE, flag, 0));
}		}

int		int
kern_unlinkat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_unlinkat(struct thread td, int fd, const char path,
int flag, ino_t oldinum)		enum uio_seg pathseg, int flag, ino_t oldinum)
{		{
struct mount *mp;		struct mount *mp;
struct vnode *vp;		struct vnode *vp;
struct nameidata nd;		struct nameidata nd;
struct stat sb;		struct stat sb;
int error;		int error;

restart:		restart:
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sys_faccessat(struct thread td, struct faccessat_args uap)		sys_faccessat(struct thread td, struct faccessat_args uap)
{		{

return (kern_accessat(td, uap->fd, uap->path, UIO_USERSPACE, uap->flag,		return (kern_accessat(td, uap->fd, uap->path, UIO_USERSPACE, uap->flag,
uap->amode));		uap->amode));
}		}

int		int
kern_accessat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_accessat(struct thread td, int fd, const char path,
int flag, int amode)		enum uio_seg pathseg, int flag, int amode)
{		{
struct ucred cred, usecred;		struct ucred cred, usecred;
struct vnode *vp;		struct vnode *vp;
struct nameidata nd;		struct nameidata nd;
int error;		int error;

if ((flag & ~(AT_EACCESS \| AT_BENEATH)) != 0)		if ((flag & ~(AT_EACCESS \| AT_BENEATH)) != 0)
return (EINVAL);		return (EINVAL);
▲ Show 20 Lines • Show All 295 Lines • ▼ Show 20 Lines	sys_fstatat(struct thread td, struct fstatat_args uap)
error = kern_statat(td, uap->flag, uap->fd, uap->path,		error = kern_statat(td, uap->flag, uap->fd, uap->path,
UIO_USERSPACE, &sb, NULL);		UIO_USERSPACE, &sb, NULL);
if (error == 0)		if (error == 0)
error = copyout(&sb, uap->buf, sizeof (sb));		error = copyout(&sb, uap->buf, sizeof (sb));
return (error);		return (error);
}		}

int		int
kern_statat(struct thread td, int flag, int fd, char path,		kern_statat(struct thread td, int flag, int fd, const char path,
enum uio_seg pathseg, struct stat *sbp,		enum uio_seg pathseg, struct stat *sbp,
void (hook)(struct vnode vp, struct stat *sbp))		void (hook)(struct vnode vp, struct stat *sbp))
{		{
struct nameidata nd;		struct nameidata nd;
struct stat sb;		struct stat sb;
int error;		int error;

if ((flag & ~(AT_SYMLINK_NOFOLLOW \| AT_BENEATH)) != 0)		if ((flag & ~(AT_SYMLINK_NOFOLLOW \| AT_BENEATH)) != 0)
▲ Show 20 Lines • Show All 142 Lines • ▼ Show 20 Lines	sys_lpathconf(struct thread td, struct lpathconf_args uap)
error = kern_pathconf(td, uap->path, UIO_USERSPACE, uap->name,		error = kern_pathconf(td, uap->path, UIO_USERSPACE, uap->name,
NOFOLLOW, &value);		NOFOLLOW, &value);
if (error == 0)		if (error == 0)
td->td_retval[0] = value;		td->td_retval[0] = value;
return (error);		return (error);
}		}

int		int
kern_pathconf(struct thread td, char path, enum uio_seg pathseg, int name,		kern_pathconf(struct thread td, const char path, enum uio_seg pathseg,
u_long flags, long *valuep)		int name, u_long flags, long *valuep)
{		{
struct nameidata nd;		struct nameidata nd;
int error;		int error;

NDINIT(&nd, LOOKUP, LOCKSHARED \| LOCKLEAF \| AUDITVNODE1 \| flags,		NDINIT(&nd, LOOKUP, LOCKSHARED \| LOCKLEAF \| AUDITVNODE1 \| flags,
pathseg, path, td);		pathseg, path, td);
if ((error = namei(&nd)) != 0)		if ((error = namei(&nd)) != 0)
return (error);		return (error);
Show All 33 Lines
sys_readlinkat(struct thread td, struct readlinkat_args uap)		sys_readlinkat(struct thread td, struct readlinkat_args uap)
{		{

return (kern_readlinkat(td, uap->fd, uap->path, UIO_USERSPACE,		return (kern_readlinkat(td, uap->fd, uap->path, UIO_USERSPACE,
uap->buf, UIO_USERSPACE, uap->bufsize));		uap->buf, UIO_USERSPACE, uap->bufsize));
}		}

int		int
kern_readlinkat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_readlinkat(struct thread td, int fd, const char path,
char *buf, enum uio_seg bufseg, size_t count)		enum uio_seg pathseg, char *buf, enum uio_seg bufseg, size_t count)
{		{
struct vnode *vp;		struct vnode *vp;
struct iovec aiov;		struct iovec aiov;
struct uio auio;		struct uio auio;
struct nameidata nd;		struct nameidata nd;
int error;		int error;

if (count > IOSIZE_MAX)		if (count > IOSIZE_MAX)
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sys_lchmod(struct thread td, struct lchmod_args uap)		sys_lchmod(struct thread td, struct lchmod_args uap)
{		{

return (kern_fchmodat(td, AT_FDCWD, uap->path, UIO_USERSPACE,		return (kern_fchmodat(td, AT_FDCWD, uap->path, UIO_USERSPACE,
uap->mode, AT_SYMLINK_NOFOLLOW));		uap->mode, AT_SYMLINK_NOFOLLOW));
}		}

int		int
kern_fchmodat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_fchmodat(struct thread td, int fd, const char path,
mode_t mode, int flag)		enum uio_seg pathseg, mode_t mode, int flag)
{		{
struct nameidata nd;		struct nameidata nd;
int error, follow;		int error, follow;

AUDIT_ARG_MODE(mode);		AUDIT_ARG_MODE(mode);
follow = (flag & AT_SYMLINK_NOFOLLOW) != 0 ? NOFOLLOW : FOLLOW;		follow = (flag & AT_SYMLINK_NOFOLLOW) != 0 ? NOFOLLOW : FOLLOW;
follow \|= (flag & AT_BENEATH) != 0 ? BENEATH : 0;		follow \|= (flag & AT_BENEATH) != 0 ? BENEATH : 0;
NDINIT_ATRIGHTS(&nd, LOOKUP, follow \| AUDITVNODE1, pathseg, path, fd,		NDINIT_ATRIGHTS(&nd, LOOKUP, follow \| AUDITVNODE1, pathseg, path, fd,
▲ Show 20 Lines • Show All 94 Lines • ▼ Show 20 Lines	sys_fchownat(struct thread td, struct fchownat_args uap)
if ((uap->flag & ~(AT_SYMLINK_NOFOLLOW \| AT_BENEATH)) != 0)		if ((uap->flag & ~(AT_SYMLINK_NOFOLLOW \| AT_BENEATH)) != 0)
return (EINVAL);		return (EINVAL);

return (kern_fchownat(td, uap->fd, uap->path, UIO_USERSPACE, uap->uid,		return (kern_fchownat(td, uap->fd, uap->path, UIO_USERSPACE, uap->uid,
uap->gid, uap->flag));		uap->gid, uap->flag));
}		}

int		int
kern_fchownat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_fchownat(struct thread td, int fd, const char path,
int uid, int gid, int flag)		enum uio_seg pathseg, int uid, int gid, int flag)
{		{
struct nameidata nd;		struct nameidata nd;
int error, follow;		int error, follow;

AUDIT_ARG_OWNER(uid, gid);		AUDIT_ARG_OWNER(uid, gid);
follow = (flag & AT_SYMLINK_NOFOLLOW) ? NOFOLLOW : FOLLOW;		follow = (flag & AT_SYMLINK_NOFOLLOW) ? NOFOLLOW : FOLLOW;
follow \|= (flag & AT_BENEATH) != 0 ? BENEATH : 0;		follow \|= (flag & AT_BENEATH) != 0 ? BENEATH : 0;
NDINIT_ATRIGHTS(&nd, LOOKUP, follow \| AUDITVNODE1, pathseg, path, fd,		NDINIT_ATRIGHTS(&nd, LOOKUP, follow \| AUDITVNODE1, pathseg, path, fd,
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sys_futimesat(struct thread td, struct futimesat_args uap)		sys_futimesat(struct thread td, struct futimesat_args uap)
{		{

return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE,		return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE,
uap->times, UIO_USERSPACE));		uap->times, UIO_USERSPACE));
}		}

int		int
kern_utimesat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_utimesat(struct thread td, int fd, const char path,
struct timeval *tptr, enum uio_seg tptrseg)		enum uio_seg pathseg, struct timeval *tptr, enum uio_seg tptrseg)
{		{
struct nameidata nd;		struct nameidata nd;
struct timespec ts[2];		struct timespec ts[2];
int error;		int error;

if ((error = getutimes(tptr, tptrseg, ts)) != 0)		if ((error = getutimes(tptr, tptrseg, ts)) != 0)
return (error);		return (error);
NDINIT_ATRIGHTS(&nd, LOOKUP, FOLLOW \| AUDITVNODE1, pathseg, path, fd,		NDINIT_ATRIGHTS(&nd, LOOKUP, FOLLOW \| AUDITVNODE1, pathseg, path, fd,
Show All 20 Lines
sys_lutimes(struct thread td, struct lutimes_args uap)		sys_lutimes(struct thread td, struct lutimes_args uap)
{		{

return (kern_lutimes(td, uap->path, UIO_USERSPACE, uap->tptr,		return (kern_lutimes(td, uap->path, UIO_USERSPACE, uap->tptr,
UIO_USERSPACE));		UIO_USERSPACE));
}		}

int		int
kern_lutimes(struct thread td, char path, enum uio_seg pathseg,		kern_lutimes(struct thread td, const char path, enum uio_seg pathseg,
struct timeval *tptr, enum uio_seg tptrseg)		struct timeval *tptr, enum uio_seg tptrseg)
{		{
struct timespec ts[2];		struct timespec ts[2];
struct nameidata nd;		struct nameidata nd;
int error;		int error;

if ((error = getutimes(tptr, tptrseg, ts)) != 0)		if ((error = getutimes(tptr, tptrseg, ts)) != 0)
return (error);		return (error);
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sys_utimensat(struct thread td, struct utimensat_args uap)		sys_utimensat(struct thread td, struct utimensat_args uap)
{		{

return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE,		return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE,
uap->times, UIO_USERSPACE, uap->flag));		uap->times, UIO_USERSPACE, uap->flag));
}		}

int		int
kern_utimensat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_utimensat(struct thread td, int fd, const char path,
struct timespec *tptr, enum uio_seg tptrseg, int flag)		enum uio_seg pathseg, struct timespec *tptr, enum uio_seg tptrseg,
		int flag)
{		{
struct nameidata nd;		struct nameidata nd;
struct timespec ts[2];		struct timespec ts[2];
int error, flags;		int error, flags;

if ((flag & ~(AT_SYMLINK_NOFOLLOW \| AT_BENEATH)) != 0)		if ((flag & ~(AT_SYMLINK_NOFOLLOW \| AT_BENEATH)) != 0)
return (EINVAL);		return (EINVAL);

Show All 30 Lines
int		int
sys_truncate(struct thread td, struct truncate_args uap)		sys_truncate(struct thread td, struct truncate_args uap)
{		{

return (kern_truncate(td, uap->path, UIO_USERSPACE, uap->length));		return (kern_truncate(td, uap->path, UIO_USERSPACE, uap->length));
}		}

int		int
kern_truncate(struct thread td, char path, enum uio_seg pathseg, off_t length)		kern_truncate(struct thread td, const char path, enum uio_seg pathseg,
		off_t length)
{		{
struct mount *mp;		struct mount *mp;
struct vnode *vp;		struct vnode *vp;
void *rl_cookie;		void *rl_cookie;
struct vattr vattr;		struct vattr vattr;
struct nameidata nd;		struct nameidata nd;
int error;		int error;

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sys_renameat(struct thread td, struct renameat_args uap)		sys_renameat(struct thread td, struct renameat_args uap)
{		{

return (kern_renameat(td, uap->oldfd, uap->old, uap->newfd, uap->new,		return (kern_renameat(td, uap->oldfd, uap->old, uap->newfd, uap->new,
UIO_USERSPACE));		UIO_USERSPACE));
}		}

int		int
kern_renameat(struct thread td, int oldfd, char old, int newfd, char *new,		kern_renameat(struct thread td, int oldfd, const char old, int newfd,
enum uio_seg pathseg)		const char *new, enum uio_seg pathseg)
{		{
struct mount *mp = NULL;		struct mount *mp = NULL;
struct vnode tvp, fvp, *tdvp;		struct vnode tvp, fvp, *tdvp;
struct nameidata fromnd, tond;		struct nameidata fromnd, tond;
int error;		int error;

again:		again:
bwillwrite();		bwillwrite();
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int		int
sys_mkdirat(struct thread td, struct mkdirat_args uap)		sys_mkdirat(struct thread td, struct mkdirat_args uap)
{		{

return (kern_mkdirat(td, uap->fd, uap->path, UIO_USERSPACE, uap->mode));		return (kern_mkdirat(td, uap->fd, uap->path, UIO_USERSPACE, uap->mode));
}		}

int		int
kern_mkdirat(struct thread td, int fd, char path, enum uio_seg segflg,		kern_mkdirat(struct thread td, int fd, const char path, enum uio_seg segflg,
int mode)		int mode)
{		{
struct mount *mp;		struct mount *mp;
struct vnode *vp;		struct vnode *vp;
struct vattr vattr;		struct vattr vattr;
struct nameidata nd;		struct nameidata nd;
int error;		int error;

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int		int
sys_rmdir(struct thread td, struct rmdir_args uap)		sys_rmdir(struct thread td, struct rmdir_args uap)
{		{

return (kern_rmdirat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 0));		return (kern_rmdirat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 0));
}		}

int		int
kern_rmdirat(struct thread td, int fd, char path, enum uio_seg pathseg,		kern_rmdirat(struct thread td, int fd, const char path, enum uio_seg pathseg,
int flag)		int flag)
{		{
struct mount *mp;		struct mount *mp;
struct vnode *vp;		struct vnode *vp;
struct nameidata nd;		struct nameidata nd;
int error;		int error;

restart:		restart:
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