/*
* union_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
* struct componentname *a_cnp, struct vattr *a_vap)
*/
static int
union_mkdir(struct vop_old_mkdir_args *ap)
{
struct union_node *dun = VTOUNION(ap->a_dvp);
struct componentname *cnp = ap->a_cnp;
struct thread *td = cnp->cn_td;
struct vnode *upperdvp;
int error = EROFS;
if ((upperdvp = union_lock_upper(dun, td)) != NULLVP) {
struct vnode *vp;
error = VOP_MKDIR(upperdvp, &vp, cnp, ap->a_vap);
union_unlock_upper(upperdvp, td);
if (error == 0) {
vn_unlock(vp);
UDEBUG(("ALLOCVP-2 FROM %p REFS %d\n", vp, vp->v_sysref.refcnt));
error = union_allocvp(ap->a_vpp, ap->a_dvp->v_mount,
ap->a_dvp, NULLVP, cnp, vp, NULLVP, 1);
UDEBUG(("ALLOCVP-2B FROM %p REFS %d\n", *ap->a_vpp, vp->v_sysref.refcnt));
}
}
return (error);
}
int
smb_vop_mkdir(vnode_t *dvp, char *name, smb_attr_t *attr, vnode_t **vpp,
int flags, cred_t *cr, vsecattr_t *vsap)
{
int error;
int option_flags = 0;
xvattr_t xvattr;
vattr_t *vap;
char *np = name;
char namebuf[MAXNAMELEN];
if (flags & SMB_IGNORE_CASE)
option_flags = FIGNORECASE;
attr->sa_vattr.va_mask = 0;
if (vfs_has_feature(dvp->v_vfsp, VFSFT_XVATTR)) {
smb_vop_setup_xvattr(attr, &xvattr);
vap = &xvattr.xva_vattr;
} else {
smb_sa_to_va_mask(attr->sa_mask, &attr->sa_vattr.va_mask);
vap = &attr->sa_vattr;
}
if (flags & SMB_CATIA) {
np = smb_vop_catia_v5tov4(name, namebuf, sizeof (namebuf));
if (strchr(np, '/') != NULL)
return (EILSEQ);
}
error = VOP_MKDIR(dvp, np, vap, vpp, cr, &smb_ct, option_flags, vsap);
return (error);
}
int
RUMP_VOP_MKDIR(struct vnode *dvp,
struct vnode **vpp,
struct componentname *cnp,
struct vattr *vap)
{
int error;
rump_schedule();
error = VOP_MKDIR(dvp, vpp, cnp, vap);
rump_unschedule();
return error;
}
/*
* Does most of the work for mkdir.
*/
int
vfs_mkdir(char *path)
{
struct vnode *parent;
char name[NAME_MAX+1];
int result;
result = vfs_lookparent(path, &parent, name, sizeof(name));
if (result) {
return result;
}
result = VOP_MKDIR(parent, name);
VOP_DECREF(parent);
return result;
}
static int
unionfs_mkdir(void *v)
{
struct vop_mkdir_args *ap = v;
int error;
struct unionfs_node *dunp;
struct componentname *cnp;
struct vnode *udvp;
struct vnode *uvp;
struct vattr va;
UNIONFS_INTERNAL_DEBUG("unionfs_mkdir: enter\n");
error = EROFS;
dunp = VTOUNIONFS(ap->a_dvp);
cnp = ap->a_cnp;
udvp = dunp->un_uppervp;
if (udvp != NULLVP) {
/* check opaque */
if (!(cnp->cn_flags & ISWHITEOUT)) {
error = VOP_GETATTR(udvp, &va, cnp->cn_cred);
if (error != 0)
return (error);
if (va.va_flags & OPAQUE)
cnp->cn_flags |= ISWHITEOUT;
}
if ((error = VOP_MKDIR(udvp, &uvp, cnp, ap->a_vap)) == 0) {
error = unionfs_nodeget(ap->a_dvp->v_mount, uvp, NULLVP,
ap->a_dvp, ap->a_vpp, cnp);
if (error) {
vput(uvp);
} else {
vrele(uvp);
}
}
}
UNIONFS_INTERNAL_DEBUG("unionfs_mkdir: leave (%d)\n", error);
return (error);
}
static void
prof_getattr(struct sdev_node *dir, char *name, struct vnode *gdv,
struct vattr *vap, struct vnode **avpp, int *no_fs_perm)
{
struct vnode *advp;
/* get attribute from shadow, if present; else get default */
advp = dir->sdev_attrvp;
if (advp && VOP_LOOKUP(advp, name, avpp, NULL, 0, NULL, kcred,
NULL, NULL, NULL) == 0) {
(void) VOP_GETATTR(*avpp, vap, 0, kcred, NULL);
} else if (gdv == NULL || gdv->v_type == VDIR) {
/* always create shadow directory */
*vap = sdev_vattr_dir;
if (advp && VOP_MKDIR(advp, name, &sdev_vattr_dir,
avpp, kcred, NULL, 0, NULL) != 0) {
*avpp = NULLVP;
sdcmn_err10(("prof_getattr: failed to create "
"shadow directory %s/%s\n", dir->sdev_path, name));
}
} else {
/*
* get default permission from devfs
* Before calling devfs_get_defattr, we need to get
* the realvp (the dv_node). If realvp is not a dv_node,
* devfs_get_defattr() will return a system-wide default
* attr for device nodes.
*/
struct vnode *rvp;
if (VOP_REALVP(gdv, &rvp, NULL) != 0)
rvp = gdv;
devfs_get_defattr(rvp, vap, no_fs_perm);
*avpp = NULLVP;
}
/* ignore dev_t and vtype from backing store */
if (gdv) {
vap->va_type = gdv->v_type;
vap->va_rdev = gdv->v_rdev;
}
}
static int
auto_mkdir(
vnode_t *dvp,
char *nm,
vattr_t *va,
vnode_t **vpp,
cred_t *cred,
caller_context_t *ct,
int flags,
vsecattr_t *vsecp)
{
vnode_t *newvp;
int error;
AUTOFS_DPRINT((4, "auto_mkdir dvp %p nm %s\n", (void *)dvp, nm));
if (error = auto_trigger_mount(dvp, cred, &newvp))
goto done;
if (newvp != NULL) {
/*
* Node is now mounted on.
*/
if (vn_is_readonly(newvp))
error = EROFS;
else
error = VOP_MKDIR(newvp, nm, va, vpp, cred, ct,
flags, vsecp);
VN_RELE(newvp);
} else
error = ENOSYS;
done:
AUTOFS_DPRINT((5, "auto_mkdir: error=%d\n", error));
return (error);
}
static int
zfs_replay_create(zfsvfs_t *zfsvfs, lr_create_t *lr, boolean_t byteswap)
{
char *name = NULL; /* location determined later */
char *link; /* symlink content follows name */
znode_t *dzp;
vnode_t *vp = NULL;
xvattr_t xva;
int vflg = 0;
size_t lrsize = sizeof (lr_create_t);
lr_attr_t *lrattr;
void *start;
size_t xvatlen;
uint64_t txtype;
struct componentname cn;
int error;
txtype = (lr->lr_common.lrc_txtype & ~TX_CI);
if (byteswap) {
byteswap_uint64_array(lr, sizeof (*lr));
if (txtype == TX_CREATE_ATTR || txtype == TX_MKDIR_ATTR)
zfs_replay_swap_attrs((lr_attr_t *)(lr + 1));
}
if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0)
return (error);
xva_init(&xva);
zfs_init_vattr(&xva.xva_vattr, AT_TYPE | AT_MODE | AT_UID | AT_GID,
lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, lr->lr_foid);
/*
* All forms of zfs create (create, mkdir, mkxattrdir, symlink)
* eventually end up in zfs_mknode(), which assigns the object's
* creation time and generation number. The generic VOP_CREATE()
* doesn't have either concept, so we smuggle the values inside
* the vattr's otherwise unused va_ctime and va_nblocks fields.
*/
ZFS_TIME_DECODE(&xva.xva_vattr.va_ctime, lr->lr_crtime);
xva.xva_vattr.va_nblocks = lr->lr_gen;
error = dmu_object_info(zfsvfs->z_os, lr->lr_foid, NULL);
if (error != ENOENT)
goto out;
if (lr->lr_common.lrc_txtype & TX_CI)
vflg |= FIGNORECASE;
/*
* Symlinks don't have fuid info, and CIFS never creates
* symlinks.
*
* The _ATTR versions will grab the fuid info in their subcases.
*/
if ((int)lr->lr_common.lrc_txtype != TX_SYMLINK &&
(int)lr->lr_common.lrc_txtype != TX_MKDIR_ATTR &&
(int)lr->lr_common.lrc_txtype != TX_CREATE_ATTR) {
start = (lr + 1);
zfsvfs->z_fuid_replay =
zfs_replay_fuid_domain(start, &start,
lr->lr_uid, lr->lr_gid);
}
cn.cn_cred = kcred;
cn.cn_thread = curthread;
cn.cn_flags = SAVENAME;
vn_lock(ZTOV(dzp), LK_EXCLUSIVE | LK_RETRY);
switch (txtype) {
case TX_CREATE_ATTR:
lrattr = (lr_attr_t *)(caddr_t)(lr + 1);
xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
zfs_replay_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), &xva);
start = (caddr_t)(lr + 1) + xvatlen;
zfsvfs->z_fuid_replay =
zfs_replay_fuid_domain(start, &start,
lr->lr_uid, lr->lr_gid);
name = (char *)start;
/*FALLTHROUGH*/
case TX_CREATE:
if (name == NULL)
name = (char *)start;
cn.cn_nameptr = name;
error = VOP_CREATE(ZTOV(dzp), &vp, &cn, &xva.xva_vattr /*,vflg*/);
break;
case TX_MKDIR_ATTR:
lrattr = (lr_attr_t *)(caddr_t)(lr + 1);
xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
zfs_replay_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), &xva);
start = (caddr_t)(lr + 1) + xvatlen;
zfsvfs->z_fuid_replay =
zfs_replay_fuid_domain(start, &start,
lr->lr_uid, lr->lr_gid);
name = (char *)start;
/*FALLTHROUGH*/
case TX_MKDIR:
if (name == NULL)
name = (char *)(lr + 1);
cn.cn_nameptr = name;
error = VOP_MKDIR(ZTOV(dzp), &vp, &cn, &xva.xva_vattr /*,vflg*/);
break;
case TX_MKXATTR:
error = zfs_make_xattrdir(dzp, &xva.xva_vattr, &vp, kcred);
break;
case TX_SYMLINK:
name = (char *)(lr + 1);
link = name + strlen(name) + 1;
cn.cn_nameptr = name;
error = VOP_SYMLINK(ZTOV(dzp), &vp, &cn, &xva.xva_vattr, link /*,vflg*/);
break;
default:
error = ENOTSUP;
}
VOP_UNLOCK(ZTOV(dzp), 0);
out:
if (error == 0 && vp != NULL)
VN_URELE(vp);
VN_RELE(ZTOV(dzp));
if (zfsvfs->z_fuid_replay)
zfs_fuid_info_free(zfsvfs->z_fuid_replay);
zfsvfs->z_fuid_replay = NULL;
return (error);
}
/*
* Replay file create with optional ACL, xvattr information as well
* as option FUID information.
*/
static int
zfs_replay_create_acl(zfsvfs_t *zfsvfs,
lr_acl_create_t *lracl, boolean_t byteswap)
{
char *name = NULL; /* location determined later */
lr_create_t *lr = (lr_create_t *)lracl;
znode_t *dzp;
vnode_t *vp = NULL;
xvattr_t xva;
int vflg = 0;
vsecattr_t vsec = { 0 };
lr_attr_t *lrattr;
void *aclstart;
void *fuidstart;
size_t xvatlen = 0;
uint64_t txtype;
int error;
txtype = (lr->lr_common.lrc_txtype & ~TX_CI);
if (byteswap) {
byteswap_uint64_array(lracl, sizeof (*lracl));
if (txtype == TX_CREATE_ACL_ATTR ||
txtype == TX_MKDIR_ACL_ATTR) {
lrattr = (lr_attr_t *)(caddr_t)(lracl + 1);
zfs_replay_swap_attrs(lrattr);
xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
}
aclstart = (caddr_t)(lracl + 1) + xvatlen;
zfs_ace_byteswap(aclstart, lracl->lr_acl_bytes, B_FALSE);
/* swap fuids */
if (lracl->lr_fuidcnt) {
byteswap_uint64_array((caddr_t)aclstart +
ZIL_ACE_LENGTH(lracl->lr_acl_bytes),
lracl->lr_fuidcnt * sizeof (uint64_t));
}
}
if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0)
return (error);
xva_init(&xva);
zfs_init_vattr(&xva.xva_vattr, AT_TYPE | AT_MODE | AT_UID | AT_GID,
lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, lr->lr_foid);
/*
* All forms of zfs create (create, mkdir, mkxattrdir, symlink)
* eventually end up in zfs_mknode(), which assigns the object's
* creation time and generation number. The generic VOP_CREATE()
* doesn't have either concept, so we smuggle the values inside
* the vattr's otherwise unused va_ctime and va_nblocks fields.
*/
ZFS_TIME_DECODE(&xva.xva_vattr.va_ctime, lr->lr_crtime);
xva.xva_vattr.va_nblocks = lr->lr_gen;
error = dmu_object_info(zfsvfs->z_os, lr->lr_foid, NULL);
if (error != ENOENT)
goto bail;
if (lr->lr_common.lrc_txtype & TX_CI)
vflg |= FIGNORECASE;
switch (txtype) {
case TX_CREATE_ACL:
aclstart = (caddr_t)(lracl + 1);
fuidstart = (caddr_t)aclstart +
ZIL_ACE_LENGTH(lracl->lr_acl_bytes);
zfsvfs->z_fuid_replay = zfs_replay_fuids(fuidstart,
(void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt,
lr->lr_uid, lr->lr_gid);
/*FALLTHROUGH*/
case TX_CREATE_ACL_ATTR:
if (name == NULL) {
lrattr = (lr_attr_t *)(caddr_t)(lracl + 1);
xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
xva.xva_vattr.va_mask |= AT_XVATTR;
zfs_replay_xvattr(lrattr, &xva);
}
vsec.vsa_mask = VSA_ACE | VSA_ACE_ACLFLAGS;
vsec.vsa_aclentp = (caddr_t)(lracl + 1) + xvatlen;
vsec.vsa_aclcnt = lracl->lr_aclcnt;
vsec.vsa_aclentsz = lracl->lr_acl_bytes;
vsec.vsa_aclflags = lracl->lr_acl_flags;
if (zfsvfs->z_fuid_replay == NULL) {
fuidstart = (caddr_t)(lracl + 1) + xvatlen +
ZIL_ACE_LENGTH(lracl->lr_acl_bytes);
zfsvfs->z_fuid_replay =
zfs_replay_fuids(fuidstart,
(void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt,
lr->lr_uid, lr->lr_gid);
}
#ifdef TODO
error = VOP_CREATE(ZTOV(dzp), name, &xva.xva_vattr,
0, 0, &vp, kcred, vflg, NULL, &vsec);
#else
panic("%s:%u: unsupported condition", __func__, __LINE__);
#endif
break;
case TX_MKDIR_ACL:
aclstart = (caddr_t)(lracl + 1);
fuidstart = (caddr_t)aclstart +
ZIL_ACE_LENGTH(lracl->lr_acl_bytes);
zfsvfs->z_fuid_replay = zfs_replay_fuids(fuidstart,
(void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt,
lr->lr_uid, lr->lr_gid);
/*FALLTHROUGH*/
case TX_MKDIR_ACL_ATTR:
if (name == NULL) {
lrattr = (lr_attr_t *)(caddr_t)(lracl + 1);
xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
zfs_replay_xvattr(lrattr, &xva);
}
vsec.vsa_mask = VSA_ACE | VSA_ACE_ACLFLAGS;
vsec.vsa_aclentp = (caddr_t)(lracl + 1) + xvatlen;
vsec.vsa_aclcnt = lracl->lr_aclcnt;
vsec.vsa_aclentsz = lracl->lr_acl_bytes;
vsec.vsa_aclflags = lracl->lr_acl_flags;
if (zfsvfs->z_fuid_replay == NULL) {
fuidstart = (caddr_t)(lracl + 1) + xvatlen +
ZIL_ACE_LENGTH(lracl->lr_acl_bytes);
zfsvfs->z_fuid_replay =
zfs_replay_fuids(fuidstart,
(void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt,
lr->lr_uid, lr->lr_gid);
}
#ifdef TODO
error = VOP_MKDIR(ZTOV(dzp), name, &xva.xva_vattr,
&vp, kcred, NULL, vflg, &vsec);
#else
panic("%s:%u: unsupported condition", __func__, __LINE__);
#endif
break;
default:
error = ENOTSUP;
}
bail:
if (error == 0 && vp != NULL)
VN_RELE(vp);
VN_RELE(ZTOV(dzp));
if (zfsvfs->z_fuid_replay)
zfs_fuid_info_free(zfsvfs->z_fuid_replay);
zfsvfs->z_fuid_replay = NULL;
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 zfsfuse_mkdir(fuse_req_t req, fuse_ino_t parent, const char *name, mode_t mode)
{
if(strlen(name) >= MAXNAMELEN)
return ENAMETOOLONG;
vfs_t *vfs = (vfs_t *) fuse_req_userdata(req);
zfsvfs_t *zfsvfs = vfs->vfs_data;
ZFS_ENTER(zfsvfs);
znode_t *znode;
int error = zfs_zget(zfsvfs, parent, &znode, B_FALSE);
if(error) {
ZFS_EXIT(zfsvfs);
/* If the inode we are trying to get was recently deleted
dnode_hold_impl will return EEXIST instead of ENOENT */
return error == EEXIST ? ENOENT : error;
}
ASSERT(znode != NULL);
vnode_t *dvp = ZTOV(znode);
ASSERT(dvp != NULL);
vnode_t *vp = NULL;
vattr_t vattr = { 0 };
vattr.va_type = VDIR;
vattr.va_mode = mode & PERMMASK;
vattr.va_mask = AT_TYPE | AT_MODE;
cred_t cred;
zfsfuse_getcred(req, &cred);
error = VOP_MKDIR(dvp, (char *) name, &vattr, &vp, &cred, NULL, 0, NULL);
if(error)
goto out;
ASSERT(vp != NULL);
struct fuse_entry_param e = { 0 };
e.attr_timeout = 0.0;
e.entry_timeout = 0.0;
e.ino = VTOZ(vp)->z_id;
if(e.ino == 3)
e.ino = 1;
e.generation = VTOZ(vp)->z_phys->zp_gen;
error = zfsfuse_stat(vp, &e.attr, &cred);
out:
if(vp != NULL)
VN_RELE(vp);
VN_RELE(dvp);
ZFS_EXIT(zfsvfs);
if(!error)
fuse_reply_entry(req, &e);
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;
}
/*
* Creates the fs cache directory.
* The directory name is the ascii version of the fsid.
* Also makes a symlink to the directory using the specified name.
*/
int
fscdir_create(cachefscache_t *cachep, char *namep, fscache_t *fscp)
{
int error;
vnode_t *fscdirvp = NULL;
vnode_t *infovp = NULL;
vnode_t *attrvp = NULL;
struct vattr *attrp = (struct vattr *)NULL;
char name[CFS_FRONTFILE_NAME_SIZE];
int files;
int blocks = 0;
cfs_cid_t cid;
ino64_t fsid;
ASSERT(MUTEX_HELD(&cachep->c_fslistlock));
ASSERT(fscp->fs_infovp == NULL);
ASSERT(fscp->fs_fscdirvp == NULL);
ASSERT(fscp->fs_fsattrdir == NULL);
/* directory, symlink and options file + attrcache dir */
files = 0;
while (files < 4) {
error = cachefs_allocfile(cachep);
if (error)
goto out;
files++;
}
error = cachefs_allocblocks(cachep, 4, CACHEFS_RL_NONE);
if (error)
goto out;
blocks = 4;
attrp = cachefs_kmem_alloc(sizeof (struct vattr), KM_SLEEP);
attrp->va_mode = S_IFDIR | 0777;
attrp->va_uid = 0;
attrp->va_gid = 0;
attrp->va_type = VDIR;
attrp->va_mask = AT_TYPE | AT_MODE | AT_UID | AT_GID;
error = VOP_MKDIR(cachep->c_dirvp, namep, attrp, &fscdirvp, kcred,
NULL, 0, NULL);
if (error) {
cmn_err(CE_WARN, "Can't create fs cache directory");
goto out;
}
/*
* Created the directory. Get the fileno. That'll be the cachefs_fsid.
*/
attrp->va_mask = AT_NODEID;
error = VOP_GETATTR(fscdirvp, attrp, 0, kcred, NULL);
if (error) {
goto out;
}
fsid = attrp->va_nodeid;
attrp->va_mode = S_IFREG | 0666;
attrp->va_uid = 0;
attrp->va_gid = 0;
attrp->va_type = VREG;
attrp->va_mask = AT_TYPE | AT_MODE | AT_UID | AT_GID;
error = VOP_CREATE(fscdirvp, CACHEFS_FSINFO, attrp, EXCL,
0600, &infovp, kcred, 0, NULL, NULL);
if (error) {
cmn_err(CE_WARN, "Can't create fs option file");
goto out;
}
attrp->va_size = MAXBSIZE;
attrp->va_mask = AT_SIZE;
error = VOP_SETATTR(infovp, attrp, 0, kcred, NULL);
if (error) {
cmn_err(CE_WARN, "Can't set size of fsinfo file");
goto out;
}
/* write out the info file */
fscp->fs_flags |= CFS_FS_DIRTYINFO;
error = fscache_info_sync(fscp);
if (error)
goto out;
/*
* Install the symlink from cachefs_fsid -> directory.
*/
cid.cid_flags = 0;
cid.cid_fileno = fsid;
make_ascii_name(&cid, name);
error = VOP_RENAME(cachep->c_dirvp, namep, cachep->c_dirvp,
name, kcred, NULL, 0);
if (error) {
cmn_err(CE_WARN, "Can't rename cache directory");
goto out;
}
attrp->va_mask = AT_MODE | AT_TYPE;
attrp->va_mode = 0777;
attrp->va_type = VLNK;
error = VOP_SYMLINK(cachep->c_dirvp, namep, attrp, name, kcred, NULL,
0);
if (error) {
cmn_err(CE_WARN, "Can't create cache directory symlink");
goto out;
}
/*
* Finally, make the attrcache directory
*/
attrp->va_mode = S_IFDIR | 0777;
attrp->va_uid = 0;
attrp->va_gid = 0;
attrp->va_type = VDIR;
attrp->va_mask = AT_TYPE | AT_MODE | AT_UID | AT_GID;
error = VOP_MKDIR(fscdirvp, ATTRCACHE_NAME, attrp, &attrvp, kcred, NULL,
0, NULL);
if (error) {
cmn_err(CE_WARN, "Can't create attrcache dir for fscache");
goto out;
}
mutex_enter(&fscp->fs_fslock);
fscp->fs_cfsid = fsid;
fscp->fs_fscdirvp = fscdirvp;
fscp->fs_fsattrdir = attrvp;
fscp->fs_infovp = infovp;
mutex_exit(&fscp->fs_fslock);
out:
if (error) {
while (files-- > 0)
cachefs_freefile(cachep);
if (fscdirvp)
VN_RELE(fscdirvp);
if (blocks)
cachefs_freeblocks(cachep, blocks, CACHEFS_RL_NONE);
if (attrvp)
VN_RELE(attrvp);
if (infovp)
VN_RELE(infovp);
}
if (attrp)
cachefs_kmem_free(attrp, sizeof (struct vattr));
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;
}