STATIC int
linvfs_rename(
struct inode *odir,
struct dentry *odentry,
struct inode *ndir,
struct dentry *ndentry)
{
struct inode *new_inode = ndentry->d_inode;
vnode_t *fvp; /* from directory */
vnode_t *tvp; /* target directory */
int error;
fvp = LINVFS_GET_VP(odir);
tvp = LINVFS_GET_VP(ndir);
VOP_RENAME(fvp, odentry, tvp, ndentry, NULL, error);
if (error)
return -error;
if (new_inode)
validate_fields(new_inode);
validate_fields(odir);
if (ndir != odir)
validate_fields(ndir);
return 0;
}
STATIC int
linvfs_symlink(
struct inode *dir,
struct dentry *dentry,
const char *symname)
{
struct inode *ip;
vattr_t va;
vnode_t *dvp; /* directory containing name of symlink */
vnode_t *cvp; /* used to lookup symlink to put in dentry */
int error;
dvp = LINVFS_GET_VP(dir);
cvp = NULL;
memset(&va, 0, sizeof(va));
va.va_type = VLNK;
va.va_mode = irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO;
va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
error = 0;
VOP_SYMLINK(dvp, dentry, &va, (char *)symname, &cvp, NULL, error);
if (!error && cvp) {
ASSERT(cvp->v_type == VLNK);
ip = LINVFS_GET_IP(cvp);
d_instantiate(dentry, ip);
validate_fields(dir);
validate_fields(ip); /* size needs update */
}
return -error;
}
STATIC int
linvfs_symlink(
struct inode *dir,
struct dentry *dentry,
const char *symname)
{
struct inode *ip;
vattr_t va;
vnode_t *dvp; /* directory containing name of symlink */
vnode_t *cvp; /* used to lookup symlink to put in dentry */
int error;
dvp = LINVFS_GET_VP(dir);
cvp = NULL;
memset(&va, 0, sizeof(va));
va.va_mode = S_IFLNK |
(irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO);
va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
error = 0;
VOP_SYMLINK(dvp, dentry, &va, (char *)symname, &cvp, NULL, error);
if (likely(!error && cvp)) {
error = linvfs_init_security(cvp, dir);
if (likely(!error)) {
ip = LINVFS_GET_IP(cvp);
d_instantiate(dentry, ip);
validate_fields(dir);
validate_fields(ip);
}
}
return -error;
}
STATIC int
linvfs_rmdir(
struct inode *dir,
struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
vnode_t *dvp = LINVFS_GET_VP(dir);
int error;
VOP_RMDIR(dvp, dentry, NULL, error);
if (!error) {
validate_fields(inode);
validate_fields(dir);
}
return -error;
}
STATIC int
linvfs_link(
struct dentry *old_dentry,
struct inode *dir,
struct dentry *dentry)
{
struct inode *ip; /* inode of guy being linked to */
vnode_t *tdvp; /* target directory for new name/link */
vnode_t *vp; /* vp of name being linked */
int error;
ip = old_dentry->d_inode; /* inode being linked to */
if (S_ISDIR(ip->i_mode))
return -EPERM;
tdvp = LINVFS_GET_VP(dir);
vp = LINVFS_GET_VP(ip);
VOP_LINK(tdvp, vp, dentry, NULL, error);
if (!error) {
VMODIFY(tdvp);
VN_HOLD(vp);
validate_fields(ip);
d_instantiate(dentry, ip);
}
return -error;
}
STATIC int
linvfs_unlink(
struct inode *dir,
struct dentry *dentry)
{
struct inode *inode;
vnode_t *dvp; /* directory containing name to remove */
int error;
inode = dentry->d_inode;
dvp = LINVFS_GET_VP(dir);
VOP_REMOVE(dvp, dentry, NULL, error);
if (!error) {
validate_fields(dir); /* For size only */
validate_fields(inode);
}
return -error;
}
STATIC int
linvfs_symlink(
struct inode *dir,
struct dentry *dentry,
const char *symname)
{
int error;
vnode_t *dvp; /* directory containing name to remove */
vnode_t *cvp; /* used to lookup symlink to put in dentry */
vattr_t va;
struct inode *ip = NULL;
dvp = LINVFS_GET_VP(dir);
bzero(&va, sizeof(va));
va.va_type = VLNK;
va.va_mode = irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO;
va.va_mask = AT_TYPE|AT_MODE;
error = 0;
VOP_SYMLINK(dvp, dentry, &va, (char *)symname, &cvp, NULL, error);
if (!error) {
ASSERT(cvp);
ASSERT(cvp->v_type == VLNK);
ip = LINVFS_GET_IP(cvp);
if (!ip) {
error = ENOMEM;
VN_RELE(cvp);
} else {
/* linvfs_revalidate_core returns (-) errors */
error = -linvfs_revalidate_core(ip, ATTR_COMM);
d_instantiate(dentry, ip);
validate_fields(dir);
validate_fields(ip); /* size needs update */
mark_inode_dirty_sync(ip);
mark_inode_dirty_sync(dir);
}
}
return -error;
}
STATIC int
linvfs_mknod(
struct inode *dir,
struct dentry *dentry,
int mode,
int rdev)
{
struct inode *ip;
vattr_t va;
vnode_t *vp = NULL, *dvp = LINVFS_GET_VP(dir);
xfs_acl_t *default_acl = NULL;
attrexists_t test_default_acl = _ACL_DEFAULT_EXISTS;
int error;
if (test_default_acl && test_default_acl(dvp)) {
if (!_ACL_ALLOC(default_acl))
return -ENOMEM;
if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
_ACL_FREE(default_acl);
default_acl = NULL;
}
}
#ifdef CONFIG_XFS_POSIX_ACL
/*
* Conditionally compiled so that the ACL base kernel changes can be
* split out into separate patches - remove this once MS_POSIXACL is
* accepted, or some other way to implement this exists.
*/
if (IS_POSIXACL(dir) && !default_acl && has_fs_struct(current))
mode &= ~current->fs->umask;
#endif
memset(&va, 0, sizeof(va));
va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
va.va_type = IFTOVT(mode);
va.va_mode = mode;
switch (mode & S_IFMT) {
case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
va.va_rdev = XFS_MKDEV(MAJOR(rdev), MINOR(rdev));
va.va_mask |= XFS_AT_RDEV;
/*FALLTHROUGH*/
case S_IFREG:
VOP_CREATE(dvp, dentry, &va, &vp, NULL, error);
break;
case S_IFDIR:
VOP_MKDIR(dvp, dentry, &va, &vp, NULL, error);
break;
default:
error = EINVAL;
break;
}
if (default_acl) {
if (!error) {
error = _ACL_INHERIT(vp, &va, default_acl);
if (!error) {
VMODIFY(vp);
} else {
struct dentry teardown = {};
int err2;
/* Oh, the horror.
* If we can't add the ACL we must back out.
* ENOSPC can hit here, among other things.
*/
teardown.d_inode = ip = LINVFS_GET_IP(vp);
teardown.d_name = dentry->d_name;
vn_mark_bad(vp);
if (S_ISDIR(mode))
VOP_RMDIR(dvp, &teardown, NULL, err2);
else
VOP_REMOVE(dvp, &teardown, NULL, err2);
VN_RELE(vp);
}
}
_ACL_FREE(default_acl);
}
if (!error) {
ASSERT(vp);
ip = LINVFS_GET_IP(vp);
if (S_ISCHR(mode) || S_ISBLK(mode))
ip->i_rdev = to_kdev_t(rdev);
else if (S_ISDIR(mode))
validate_fields(ip);
d_instantiate(dentry, ip);
validate_fields(dir);
}
return -error;
}
STATIC int
linvfs_mknod(
struct inode *dir,
struct dentry *dentry,
int mode,
int rdev)
{
struct inode *ip;
vattr_t va;
vnode_t *vp = NULL, *dvp = LINVFS_GET_VP(dir);
xattr_exists_t test_default_acl = _ACL_DEFAULT_EXISTS;
int have_default_acl = 0;
int error = EINVAL;
if (test_default_acl)
have_default_acl = test_default_acl(dvp);
#ifdef CONFIG_FS_POSIX_ACL
/*
* Conditionally compiled so that the ACL base kernel changes can be
* split out into separate patches - remove this once MS_POSIXACL is
* accepted, or some other way to implement this exists.
*/
if (IS_POSIXACL(dir) && !have_default_acl && has_fs_struct(current))
mode &= ~current->fs->umask;
#endif
bzero(&va, sizeof(va));
va.va_mask = AT_TYPE|AT_MODE;
va.va_type = IFTOVT(mode);
va.va_mode = mode;
switch (mode & S_IFMT) {
case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
va.va_rdev = rdev;
va.va_mask |= AT_RDEV;
/*FALLTHROUGH*/
case S_IFREG:
VOP_CREATE(dvp, dentry, &va, &vp, NULL, error);
break;
case S_IFDIR:
VOP_MKDIR(dvp, dentry, &va, &vp, NULL, error);
break;
default:
error = EINVAL;
break;
}
if (!error) {
ASSERT(vp);
ip = LINVFS_GET_IP(vp);
if (!ip) {
VN_RELE(vp);
return -ENOMEM;
}
if (S_ISCHR(mode) || S_ISBLK(mode))
ip->i_rdev = to_kdev_t(rdev);
/* linvfs_revalidate_core returns (-) errors */
error = -linvfs_revalidate_core(ip, ATTR_COMM);
validate_fields(dir);
d_instantiate(dentry, ip);
mark_inode_dirty_sync(ip);
mark_inode_dirty_sync(dir);
}
if (!error && have_default_acl) {
_ACL_DECL (pdacl);
if (!_ACL_ALLOC(pdacl)) {
error = -ENOMEM;
} else {
if (_ACL_GET_DEFAULT(dvp, pdacl))
error = _ACL_INHERIT(vp, &va, pdacl);
VMODIFY(vp);
_ACL_FREE(pdacl);
}
}
return -error;
}
STATIC int
linvfs_mknod(
struct inode *dir,
struct dentry *dentry,
int mode,
dev_t rdev)
{
struct inode *ip;
vattr_t va;
vnode_t *vp = NULL, *dvp = LINVFS_GET_VP(dir);
xfs_acl_t *default_acl = NULL;
attrexists_t test_default_acl = _ACL_DEFAULT_EXISTS;
int error;
/*
* Irix uses Missed'em'V split, but doesn't want to see
* the upper 5 bits of (14bit) major.
*/
if (!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff)
return -EINVAL;
if (test_default_acl && test_default_acl(dvp)) {
if (!_ACL_ALLOC(default_acl))
return -ENOMEM;
if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
_ACL_FREE(default_acl);
default_acl = NULL;
}
}
if (IS_POSIXACL(dir) && !default_acl && has_fs_struct(current))
mode &= ~current->fs->umask;
memset(&va, 0, sizeof(va));
va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
va.va_mode = mode;
switch (mode & S_IFMT) {
case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
va.va_rdev = sysv_encode_dev(rdev);
va.va_mask |= XFS_AT_RDEV;
/*FALLTHROUGH*/
case S_IFREG:
VOP_CREATE(dvp, dentry, &va, &vp, NULL, error);
break;
case S_IFDIR:
VOP_MKDIR(dvp, dentry, &va, &vp, NULL, error);
break;
default:
error = EINVAL;
break;
}
if (!error)
{
error = linvfs_init_security(vp, dir);
if (error)
cleanup_inode(dvp, vp, dentry, mode);
}
if (default_acl) {
if (!error) {
error = _ACL_INHERIT(vp, &va, default_acl);
if (!error)
VMODIFY(vp);
else
cleanup_inode(dvp, vp, dentry, mode);
}
_ACL_FREE(default_acl);
}
if (!error) {
ASSERT(vp);
ip = LINVFS_GET_IP(vp);
if (S_ISCHR(mode) || S_ISBLK(mode))
ip->i_rdev = rdev;
else if (S_ISDIR(mode))
validate_fields(ip);
d_instantiate(dentry, ip);
validate_fields(dir);
}
return -error;
}
