static int
nandfs_process_bdesc(struct nandfs_device *nffsdev, struct nandfs_bdesc *bd,
uint64_t nmembs)
{
struct nandfs_node *dat_node;
struct buf *bp;
uint64_t i;
int error;
dat_node = nffsdev->nd_dat_node;
VOP_LOCK(NTOV(dat_node), LK_EXCLUSIVE);
for (i = 0; i < nmembs; i++) {
if (!bd[i].bd_alive)
continue;
DPRINTF(CLEAN, ("%s: idx %jx offset %jx\n",
__func__, i, bd[i].bd_offset));
if (bd[i].bd_level) {
error = nandfs_bread_meta(dat_node, bd[i].bd_offset,
NULL, 0, &bp);
if (error) {
nandfs_error("%s: cannot read dat node "
"level:%d\n", __func__, bd[i].bd_level);
brelse(bp);
VOP_UNLOCK(NTOV(dat_node), 0);
return (error);
}
nandfs_dirty_buf_meta(bp, 1);
nandfs_bmap_dirty_blocks(VTON(bp->b_vp), bp, 1);
} else {
error = nandfs_bread(dat_node, bd[i].bd_offset, NULL,
0, &bp);
if (error) {
nandfs_error("%s: cannot read dat node\n",
__func__);
brelse(bp);
VOP_UNLOCK(NTOV(dat_node), 0);
return (error);
}
nandfs_dirty_buf(bp, 1);
}
DPRINTF(CLEAN, ("%s: bp: %p\n", __func__, bp));
}
VOP_UNLOCK(NTOV(dat_node), 0);
return (0);
}
int
udf_filestat(kvm_t *kd, struct vnode *vp, struct vnstat *vn)
{
struct udf_node node;
struct udf_mnt mnt;
int error;
assert(kd);
assert(vn);
error = kvm_read_all(kd, (unsigned long)VTON(vp), &node, sizeof(node));
if (error != 0) {
warnx("can't read udf fnode at %p", (void *)VTON(vp));
return (1);
}
error = kvm_read_all(kd, (unsigned long)node.udfmp, &mnt, sizeof(mnt));
if (error != 0) {
warnx("can't read udf_mnt at %p for vnode %p",
(void *)node.udfmp, vp);
return (1);
}
vn->vn_fileid = node.hash_id;
vn->vn_fsid = dev2udev(kd, mnt.im_dev);
return (0);
}
int
nandfs_update_dirent(struct vnode *dvp, struct nandfs_node *fnode,
struct nandfs_node *tnode)
{
struct nandfs_node *dir_node;
struct nandfs_dir_entry *dirent;
struct buf *bp;
uint64_t file_size, blocknr;
uint32_t blocksize, off;
uint8_t *pos;
int error;
dir_node = VTON(dvp);
file_size = dir_node->nn_inode.i_size;
if (!file_size)
return (0);
DPRINTF(LOOKUP,
("chg direntry dvp %p ino %#jx to in %#jx at off %#jx\n",
dvp, (uintmax_t)tnode->nn_ino, (uintmax_t)fnode->nn_ino,
(uintmax_t)tnode->nn_diroff));
blocksize = dir_node->nn_nandfsdev->nd_blocksize;
blocknr = tnode->nn_diroff / blocksize;
off = tnode->nn_diroff % blocksize;
error = nandfs_bread(dir_node, blocknr, NOCRED, 0, &bp);
if (error) {
brelse(bp);
return (error);
}
pos = bp->b_data;
dirent = (struct nandfs_dir_entry *) (pos + off);
KASSERT((dirent->inode == tnode->nn_ino),
("direntry mismatch"));
dirent->inode = fnode->nn_ino;
error = nandfs_dirty_buf(bp, 0);
if (error)
return (error);
return (0);
}
int
nandfs_update_parent_dir(struct vnode *dvp, uint64_t newparent)
{
struct nandfs_dir_entry *dirent;
struct nandfs_node *dir_node;
struct buf *bp;
int error;
dir_node = VTON(dvp);
error = nandfs_bread(dir_node, 0, NOCRED, 0, &bp);
if (error) {
brelse(bp);
return (error);
}
dirent = (struct nandfs_dir_entry *)bp->b_data;
dirent->inode = newparent;
error = nandfs_dirty_buf(bp, 0);
if (error)
return (error);
return (0);
}
static int
udf_fhtovp(struct mount *mp, struct fid *fhp, int flags, struct vnode **vpp)
{
struct ifid *ifhp;
struct vnode *nvp;
struct udf_node *np;
off_t fsize;
int error;
ifhp = (struct ifid *)fhp;
if ((error = VFS_VGET(mp, ifhp->ifid_ino, LK_EXCLUSIVE, &nvp)) != 0) {
*vpp = NULLVP;
return (error);
}
np = VTON(nvp);
fsize = le64toh(np->fentry->inf_len);
*vpp = nvp;
vnode_create_vobject(*vpp, fsize, curthread);
return (0);
}
int
nandfs_add_dirent(struct vnode *dvp, uint64_t ino, char *nameptr, long namelen,
uint8_t type)
{
struct nandfs_node *dir_node = VTON(dvp);
struct nandfs_dir_entry *dirent, *pdirent;
uint32_t blocksize = dir_node->nn_nandfsdev->nd_blocksize;
uint64_t filesize = dir_node->nn_inode.i_size;
uint64_t inode_blks = dir_node->nn_inode.i_blocks;
uint32_t off, rest;
uint8_t *pos;
struct buf *bp;
int error;
pdirent = NULL;
bp = NULL;
if (inode_blks) {
error = nandfs_bread(dir_node, inode_blks - 1, NOCRED, 0, &bp);
if (error) {
brelse(bp);
return (error);
}
pos = bp->b_data;
off = 0;
while (off < blocksize) {
pdirent = (struct nandfs_dir_entry *) (pos + off);
if (!pdirent->rec_len) {
pdirent = NULL;
break;
}
off += pdirent->rec_len;
}
if (pdirent)
rest = pdirent->rec_len -
NANDFS_DIR_REC_LEN(pdirent->name_len);
else
rest = blocksize;
if (rest < NANDFS_DIR_REC_LEN(namelen)) {
/* Do not update pdirent as new block is created */
pdirent = NULL;
brelse(bp);
/* Set to NULL to create new */
bp = NULL;
filesize += rest;
}
}
/* If no bp found create new */
if (!bp) {
error = nandfs_bcreate(dir_node, inode_blks, NOCRED, 0, &bp);
if (error)
return (error);
off = 0;
pos = bp->b_data;
}
/* Modify pdirent if exists */
if (pdirent) {
DPRINTF(LOOKUP, ("modify pdirent %p\n", pdirent));
/* modify last de */
off -= pdirent->rec_len;
pdirent->rec_len =
NANDFS_DIR_REC_LEN(pdirent->name_len);
off += pdirent->rec_len;
}
/* Create new dirent */
dirent = (struct nandfs_dir_entry *) (pos + off);
dirent->rec_len = blocksize - off;
dirent->inode = ino;
dirent->name_len = namelen;
memset(dirent->name, 0, NANDFS_DIR_NAME_LEN(namelen));
memcpy(dirent->name, nameptr, namelen);
dirent->file_type = type;
filesize += NANDFS_DIR_REC_LEN(dirent->name_len);
DPRINTF(LOOKUP, ("create dir_entry '%.*s' at %p with size %x "
"new filesize: %jx\n",
(int)namelen, dirent->name, dirent, dirent->rec_len,
(uintmax_t)filesize));
error = nandfs_dirty_buf(bp, 0);
if (error)
return (error);
dir_node->nn_inode.i_size = filesize;
dir_node->nn_flags |= IN_CHANGE | IN_UPDATE;
vnode_pager_setsize(dvp, filesize);
return (0);
}
int
nandfs_remove_dirent(struct vnode *dvp, struct nandfs_node *node,
struct componentname *cnp)
{
struct nandfs_node *dir_node;
struct nandfs_dir_entry *dirent, *pdirent;
struct buf *bp;
uint64_t filesize, blocknr, ino, offset;
uint32_t blocksize, limit, off;
uint16_t newsize;
uint8_t *pos;
int error, found;
dir_node = VTON(dvp);
filesize = dir_node->nn_inode.i_size;
if (!filesize)
return (0);
if (node) {
offset = node->nn_diroff;
ino = node->nn_ino;
} else {
offset = dir_node->nn_diroff;
ino = NANDFS_WHT_INO;
}
dirent = pdirent = NULL;
blocksize = dir_node->nn_nandfsdev->nd_blocksize;
blocknr = offset / blocksize;
DPRINTF(LOOKUP, ("rm direntry dvp %p node %p ino %#jx at off %#jx\n",
dvp, node, (uintmax_t)ino, (uintmax_t)offset));
error = nandfs_bread(dir_node, blocknr, NOCRED, 0, &bp);
if (error) {
brelse(bp);
return (error);
}
pos = bp->b_data;
off = 0;
found = 0;
limit = offset % blocksize;
pdirent = (struct nandfs_dir_entry *) bp->b_data;
while (off <= limit) {
dirent = (struct nandfs_dir_entry *) (pos + off);
if ((off == limit) &&
(dirent->inode == ino)) {
found = 1;
break;
}
if (dirent->inode != 0)
pdirent = dirent;
off += dirent->rec_len;
}
if (!found) {
nandfs_error("cannot find entry to remove");
brelse(bp);
return (error);
}
DPRINTF(LOOKUP,
("rm dirent ino %#jx at %#x with size %#x\n",
(uintmax_t)dirent->inode, off, dirent->rec_len));
newsize = (uintptr_t)dirent - (uintptr_t)pdirent;
newsize += dirent->rec_len;
pdirent->rec_len = newsize;
dirent->inode = 0;
error = nandfs_dirty_buf(bp, 0);
if (error)
return (error);
dir_node->nn_flags |= IN_CHANGE | IN_UPDATE;
/* If last one modify filesize */
if ((offset + NANDFS_DIR_REC_LEN(dirent->name_len)) == filesize) {
filesize = blocknr * blocksize +
((uintptr_t)pdirent - (uintptr_t)pos) +
NANDFS_DIR_REC_LEN(pdirent->name_len);
dir_node->nn_inode.i_size = filesize;
}
return (0);
}
