#include <linux/version.h>
#include <linux/smp_lock.h>
#include <asm/uaccess.h>
-#include <linux/file.h>
-#include <linux/kmod.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
# include <linux/locks.h> // for wait_on_buffer
#else
#define DEBUG_SUBSYSTEM S_LLITE
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-#include <linux/lustre_lite.h>
-#include <linux/lustre_dlm.h>
-#include <linux/lustre_sec.h>
-#include <linux/lustre_audit.h>
-#include <linux/lustre_acl.h>
+#include <obd_support.h>
+#include <obd_class.h>
+#include <lustre_lib.h>
+#include <lustre/lustre_idl.h>
+#include <lustre_lite.h>
+#include <lustre_dlm.h>
#include "llite_internal.h"
typedef struct ext2_dir_entry_2 ext2_dirent;
static int ll_dir_readpage(struct file *file, struct page *page)
{
struct inode *inode = page->mapping->host;
+ struct ll_fid mdc_fid;
+ __u64 offset;
struct ptlrpc_request *request;
struct mds_body *body;
- struct lustre_id id;
- __u64 offset;
int rc = 0;
ENTRY;
- CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
- inode->i_generation, inode);
+ offset = (__u64)page->index << CFS_PAGE_SHIFT;
+ CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p) off "LPU64"\n",
+ inode->i_ino, inode->i_generation, inode, offset);
- mdc_pack_id(&id, inode->i_ino, inode->i_generation,
- S_IFDIR, id_group(&ll_i2info(inode)->lli_id),
- id_fid(&ll_i2info(inode)->lli_id));
+ mdc_pack_fid(&mdc_fid, inode->i_ino, inode->i_generation, S_IFDIR);
- offset = page->index << PAGE_SHIFT;
- rc = md_readpage(ll_i2sbi(inode)->ll_md_exp, &id, offset,
- page, &request);
+ rc = mdc_readpage(ll_i2sbi(inode)->ll_mdc_exp, &mdc_fid,
+ offset, page, &request);
if (!rc) {
- body = lustre_msg_buf(request->rq_repmsg, 0, sizeof(*body));
- LASSERT (body != NULL); /* checked by md_readpage() */
- LASSERT_REPSWABBED (request, 0); /* swabbed by md_readpage() */
+ body = lustre_msg_buf(request->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*body));
+ LASSERT(body != NULL); /* checked by mdc_readpage() */
+ /* swabbed by mdc_readpage() */
+ LASSERT_REPSWABBED(request, REPLY_REC_OFF);
- //inode->i_size = body->size;
+ inode->i_size = body->size;
SetPageUptodate(page);
}
ptlrpc_req_finished(request);
unlock_page(page);
- RETURN(rc);
+ EXIT;
+ return rc;
}
struct address_space_operations ll_dir_aops = {
static inline unsigned long dir_pages(struct inode *inode)
{
- return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
+ return (inode->i_size+CFS_PAGE_SIZE-1) >> CFS_PAGE_SHIFT;
}
-static void ext2_check_page(struct page *page)
+
+static void ext2_check_page(struct inode *dir, struct page *page)
{
- struct inode *dir = page->mapping->host;
unsigned chunk_size = ext2_chunk_size(dir);
char *kaddr = page_address(page);
// u32 max_inumber = le32_to_cpu(sb->u.ext2_sb.s_es->s_inodes_count);
- unsigned offs, rec_len;
- unsigned limit = PAGE_CACHE_SIZE;
+ unsigned rec_len;
+ __u64 offs, limit = CFS_PAGE_SIZE;
ext2_dirent *p;
char *error;
- if ((dir->i_size >> PAGE_CACHE_SHIFT) == page->index) {
- limit = dir->i_size & ~PAGE_CACHE_MASK;
+ if ((dir->i_size >> CFS_PAGE_SHIFT) == (__u64)page->index) {
+ limit = dir->i_size & ~CFS_PAGE_MASK;
if (limit & (chunk_size - 1)) {
- CERROR("limit %d dir size %lld index %ld\n",
- limit, dir->i_size, page->index);
+ CERROR("limit "LPU64" dir size %lld index "LPU64"\n",
+ limit, dir->i_size, (__u64)page->index);
goto Ebadsize;
}
- for (offs = limit; offs<PAGE_CACHE_SIZE; offs += chunk_size) {
+ for (offs = limit; offs < CFS_PAGE_SIZE; offs += chunk_size) {
ext2_dirent *p = (ext2_dirent*)(kaddr + offs);
p->rec_len = cpu_to_le16(chunk_size);
p->name_len = 0;
/* Too bad, we had an error */
Ebadsize:
- CERROR("ext2_check_page"
- "size of directory #%lu is not a multiple of chunk size\n",
- dir->i_ino
- );
+ CERROR("%s: directory %lu/%u size %llu is not a multiple of %u\n",
+ ll_i2mdcexp(dir)->exp_obd->obd_name, dir->i_ino,
+ dir->i_generation, dir->i_size, chunk_size);
goto fail;
Eshort:
error = "rec_len is smaller than minimal";
//Einumber:
// error = "inode out of bounds";
bad_entry:
- CERROR("ext2_check_page: bad entry in directory #%lu: %s - "
- "offset=%lu+%u, inode=%lu, rec_len=%d, name_len=%d",
- dir->i_ino, error, (page->index<<PAGE_CACHE_SHIFT), offs,
- (unsigned long) le32_to_cpu(p->inode),
- rec_len, p->name_len);
+ CERROR("%s: bad entry in directory %lu/%u: %s - "
+ "offset="LPU64"+"LPU64", inode=%lu, rec_len=%d, name_len=%d\n",
+ ll_i2mdcexp(dir)->exp_obd->obd_name, dir->i_ino,
+ dir->i_generation, error, (__u64)page->index << CFS_PAGE_SHIFT,
+ offs, (unsigned long)le32_to_cpu(p->inode),
+ rec_len, p->name_len);
goto fail;
Eend:
p = (ext2_dirent *)(kaddr + offs);
- CERROR("ext2_check_page"
- "entry in directory #%lu spans the page boundary"
- "offset=%lu, inode=%lu",
- dir->i_ino, (page->index<<PAGE_CACHE_SHIFT)+offs,
- (unsigned long) le32_to_cpu(p->inode));
+ CERROR("%s: entry in directory %lu/%u spans the page boundary "
+ "offset="LPU64"+"LPU64", inode=%lu\n",ll_i2mdcexp(dir)->exp_obd->obd_name,
+ dir->i_ino, dir->i_generation,
+ (__u64)page->index << CFS_PAGE_SHIFT,
+ offs, (unsigned long)le32_to_cpu(p->inode));
fail:
SetPageChecked(page);
SetPageError(page);
static struct page *ll_get_dir_page(struct inode *dir, unsigned long n)
{
- struct ll_inode_info *li = ll_i2info(dir);
struct ldlm_res_id res_id =
- { .name = { id_fid(&li->lli_id), id_group(&li->lli_id)} };
+ { .name = { dir->i_ino, (__u64)dir->i_generation} };
struct lustre_handle lockh;
- struct obd_device *obddev = class_exp2obd(ll_i2sbi(dir)->ll_md_exp);
+ struct obd_device *obddev = class_exp2obd(ll_i2sbi(dir)->ll_mdc_exp);
struct address_space *mapping = dir->i_mapping;
struct page *page;
- ldlm_policy_data_t policy = { .l_inodebits = { MDS_INODELOCK_UPDATE } };
+ ldlm_policy_data_t policy = {.l_inodebits = {MDS_INODELOCK_UPDATE} };
int rc;
- obddev = md_get_real_obd(ll_i2sbi(dir)->ll_md_exp, &li->lli_id);
rc = ldlm_lock_match(obddev->obd_namespace, LDLM_FL_BLOCK_GRANTED,
- &res_id, LDLM_IBITS, &policy, LCK_PR, &lockh);
+ &res_id, LDLM_IBITS, &policy, LCK_CR, &lockh);
if (!rc) {
struct lookup_intent it = { .it_op = IT_READDIR };
struct ptlrpc_request *request;
- struct mdc_op_data *op_data;
+ struct mdc_op_data data;
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- return ERR_PTR(-ENOMEM);
+ ll_prepare_mdc_op_data(&data, dir, NULL, NULL, 0, 0);
- ll_inode2mdc_data(op_data, dir, (OBD_MD_FLID | OBD_MD_MEA));
-
- rc = ll_intent_alloc(&it);
- if (rc)
- return ERR_PTR(rc);
-
- rc = md_enqueue(ll_i2sbi(dir)->ll_md_exp, LDLM_IBITS, &it,
- LCK_PR, op_data, &lockh, NULL, 0,
- ldlm_completion_ast, ll_mdc_blocking_ast, dir);
- OBD_FREE(op_data, sizeof(*op_data));
-
- request = (struct ptlrpc_request *)LUSTRE_IT(&it)->it_data;
- ll_intent_free(&it);
+ rc = mdc_enqueue(ll_i2sbi(dir)->ll_mdc_exp, LDLM_IBITS, &it,
+ LCK_CR, &data, &lockh, NULL, 0,
+ ldlm_completion_ast, ll_mdc_blocking_ast, dir,
+ 0);
+ request = (struct ptlrpc_request *)it.d.lustre.it_data;
if (request)
ptlrpc_req_finished(request);
if (rc < 0) {
CERROR("lock enqueue: rc: %d\n", rc);
return ERR_PTR(rc);
}
- } else {
- if (ptlrpcs_check_cred(obddev->u.cli.cl_import)) {
- /* return immediately if no credential held */
- ldlm_lock_decref(&lockh, LCK_PR);
- return ERR_PTR(-EACCES);
- }
}
ldlm_lock_dump_handle(D_OTHER, &lockh);
page = read_cache_page(mapping, n,
(filler_t*)mapping->a_ops->readpage, NULL);
- if (!IS_ERR(page)) {
- wait_on_page(page);
- (void)kmap(page);
- if (!PageUptodate(page))
- goto fail;
- if (!PageChecked(page))
- ext2_check_page(page);
- if (PageError(page))
- goto fail;
- }
+ if (IS_ERR(page))
+ GOTO(out_unlock, page);
+
+ wait_on_page(page);
+ (void)kmap(page);
+ if (!PageUptodate(page))
+ goto fail;
+ if (!PageChecked(page))
+ ext2_check_page(dir, page);
+ if (PageError(page))
+ goto fail;
out_unlock:
- ldlm_lock_decref(&lockh, LCK_PR);
+ ldlm_lock_decref(&lockh, LCK_CR);
return page;
fail:
};
-int ll_readdir(struct file * filp, void * dirent, filldir_t filldir)
+int ll_readdir(struct file *filp, void *dirent, filldir_t filldir)
{
struct inode *inode = filp->f_dentry->d_inode;
loff_t pos = filp->f_pos;
// XXX struct super_block *sb = inode->i_sb;
- unsigned offset = pos & ~PAGE_CACHE_MASK;
- unsigned long n = pos >> PAGE_CACHE_SHIFT;
+ __u64 offset = pos & ~CFS_PAGE_MASK;
+ __u64 n = pos >> CFS_PAGE_SHIFT;
unsigned long npages = dir_pages(inode);
unsigned chunk_mask = ~(ext2_chunk_size(inode)-1);
unsigned char *types = ext2_filetype_table;
ext2_dirent *de;
struct page *page;
- CDEBUG(D_EXT2,"read %lu of dir %lu/%u page %lu/%lu size %llu\n",
- PAGE_CACHE_SIZE, inode->i_ino, inode->i_generation,
+ CDEBUG(D_EXT2,"read %lu of dir %lu/%u page "LPU64"/%lu "
+ "size %llu\n",
+ CFS_PAGE_SIZE, inode->i_ino, inode->i_generation,
n, npages, inode->i_size);
page = ll_get_dir_page(inode, n);
- /* size might have been updated by md_readpage() */
+ /* size might have been updated by mdc_readpage */
npages = dir_pages(inode);
if (IS_ERR(page)) {
rc = PTR_ERR(page);
- CERROR("error reading dir %lu/%u page %lu: rc %d\n",
+ CERROR("error reading dir %lu/%u page "LPU64": rc %d\n",
inode->i_ino, inode->i_generation, n, rc);
continue;
}
kaddr = page_address(page);
if (need_revalidate) {
+ /* page already checked from ll_get_dir_page() */
offset = ext2_validate_entry(kaddr, offset, chunk_mask);
need_revalidate = 0;
}
de = (ext2_dirent *)(kaddr+offset);
- limit = kaddr + PAGE_CACHE_SIZE - EXT2_DIR_REC_LEN(1);
+ limit = kaddr + CFS_PAGE_SIZE - EXT2_DIR_REC_LEN(1);
for ( ;(char*)de <= limit; de = ext2_next_entry(de)) {
if (de->inode) {
int over;
-
+
rc = 0; /* no error if we return something */
-
+
offset = (char *)de - kaddr;
over = filldir(dirent, de->name, de->name_len,
- (n<<PAGE_CACHE_SHIFT) | offset,
+ (n << CFS_PAGE_SHIFT) | offset,
le32_to_cpu(de->inode),
types[de->file_type &
(EXT2_FT_MAX - 1)]);
-
if (over) {
ext2_put_page(page);
GOTO(done, rc);
ext2_put_page(page);
}
- EXIT;
done:
- filp->f_pos = (n << PAGE_CACHE_SHIFT) | offset;
+ filp->f_pos = (n << CFS_PAGE_SHIFT) | offset;
filp->f_version = inode->i_version;
- update_atime(inode);
- return rc;
-}
+ touch_atime(filp->f_vfsmnt, filp->f_dentry);
-static int ll_mkdir_stripe(struct inode *inode, unsigned long arg)
-{
- struct ptlrpc_request *request = NULL;
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- struct ll_user_mkdir_stripe lums;
- struct mdc_op_data *op_data;
- u16 nstripes;
- mode_t mode;
- char *name;
- int err = 0;
- ENTRY;
-
- if (copy_from_user(&lums, (void *)arg, sizeof(lums)))
- RETURN(-EFAULT);
-
- if (lums.lums_namelen <= 0)
- RETURN(-EINVAL);
- OBD_ALLOC(name, lums.lums_namelen);
- if (!name)
- RETURN(-ENOMEM);
-
- if (copy_from_user(name, lums.lums_name, lums.lums_namelen))
- GOTO(out, err = -EFAULT);
-
- CDEBUG(D_VFSTRACE, "ioctl Op:name=%s,dir=%lu/%u(%p)\n",
- name, inode->i_ino, inode->i_generation, inode);
- nstripes = lums.lums_nstripes;
-
- mode = lums.lums_mode;
- mode = (mode & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
-
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- GOTO(out, err = -ENOMEM);
- ll_prepare_mdc_data(op_data, inode, NULL, name, lums.lums_namelen, 0);
- err = md_create(sbi->ll_md_exp, op_data, &nstripes, sizeof(nstripes),
- mode, current->fsuid, current->fsgid, 0, &request);
- OBD_FREE(op_data, sizeof(*op_data));
- ptlrpc_req_finished(request);
- EXIT;
-out:
- OBD_FREE(name, lums.lums_namelen);
- return err;
+ RETURN(rc);
}
-/*
- * we don't call getxattr_internal/setxattr_internal because we
- * need more precisely control.
- */
-static int ll_ioctl_getfacl(struct inode *inode,
- struct file *file,
- struct ll_acl_ioctl_data *ioc)
+#define QCTL_COPY(out, in) \
+do { \
+ Q_COPY(out, in, qc_cmd); \
+ Q_COPY(out, in, qc_type); \
+ Q_COPY(out, in, qc_id); \
+ Q_COPY(out, in, qc_stat); \
+ Q_COPY(out, in, qc_dqinfo); \
+ Q_COPY(out, in, qc_dqblk); \
+} while (0)
+
+int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump)
{
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct mdc_op_data data;
struct ptlrpc_request *req = NULL;
- struct mds_body *body;
- char *cmd, *res;
- struct lustre_id id;
- int rc;
- ENTRY;
-
- if (!ioc->cmd || !ioc->cmd_len ||
- !ioc->res || !ioc->res_len) {
- CERROR("error: cmd %p, len %lu, res %p, len %lu\n",
- ioc->cmd, ioc->cmd_len, ioc->res, ioc->res_len);
- RETURN(-EINVAL);
- }
- OBD_ALLOC(cmd, ioc->cmd_len);
- if (!cmd)
- RETURN(-ENOMEM);
- if (copy_from_user(cmd, ioc->cmd, ioc->cmd_len))
- GOTO(out, rc = -EFAULT);
+ struct iattr attr = { 0 };
+ int rc = 0;
- /* we didn't call ll_getxattr_internal() because we'd like to
- * copy from reply buffer to user space directly.
+ /*
+ * This is coming from userspace, so should be in
+ * local endian. But the MDS would like it in little
+ * endian, so we swab it before we send it.
*/
- ll_inode2id(&id, inode);
- rc = md_getattr(ll_i2sbi(inode)->ll_md_exp, &id, OBD_MD_FLXATTR,
- XATTR_NAME_LUSTRE_ACL,
- cmd, ioc->cmd_len, ioc->res_len, NULL, &req);
- if (rc < 0) {
- CERROR("rc: %d\n", rc);
- GOTO(out, rc);
- }
+ if (lump->lmm_magic != LOV_USER_MAGIC)
+ RETURN(-EINVAL);
- res = lustre_msg_buf(req->rq_repmsg, 1, ioc->res_len);
- LASSERT(res);
- if (copy_to_user(ioc->res, res, ioc->res_len))
- rc = -EFAULT;
+ if (lump->lmm_magic != cpu_to_le32(LOV_USER_MAGIC))
+ lustre_swab_lov_user_md(lump);
- body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*body));
- LASSERT(body);
- ioc->status = (__s32) body->flags;
+ ll_prepare_mdc_op_data(&data, inode, NULL, NULL, 0, 0);
- EXIT;
-out:
- if (req)
+ /* swabbing is done in lov_setstripe() on server side */
+ rc = mdc_setattr(sbi->ll_mdc_exp, &data,
+ &attr, lump, sizeof(*lump), NULL, 0, &req);
+ if (rc) {
ptlrpc_req_finished(req);
- OBD_FREE(cmd, ioc->cmd_len);
+ if (rc != -EPERM && rc != -EACCES)
+ CERROR("mdc_setattr fails: rc = %d\n", rc);
+ return rc;
+ }
+ ptlrpc_req_finished(req);
return rc;
+
}
-static int ll_ioctl_setfacl(struct inode *inode,
- struct file *file,
- struct ll_acl_ioctl_data *ioc)
+int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
+ int *lmm_size, struct ptlrpc_request **request)
{
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct ll_fid fid;
+ struct mds_body *body;
+ struct lov_mds_md *lmm = NULL;
struct ptlrpc_request *req = NULL;
- struct mdc_op_data *op_data;
- struct mds_body *body;
- struct iattr attr;
- char *cmd;
- int replen, rc;
- ENTRY;
+ int rc, lmmsize;
- if (!ioc->cmd || !ioc->cmd_len) {
- CERROR("error: cmd %p, len %lu\n", ioc->cmd, ioc->cmd_len);
- RETURN(-EINVAL);
- }
+ ll_inode2fid(&fid, inode);
- OBD_ALLOC(cmd, ioc->cmd_len);
- if (!cmd)
- RETURN(-ENOMEM);
- if (copy_from_user(cmd, ioc->cmd, ioc->cmd_len))
- GOTO(out, rc = -EFAULT);
-
- memset(&attr, 0x0, sizeof(attr));
- attr.ia_valid |= ATTR_EA;
- attr.ia_attr_flags = 0;
-
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (!op_data)
- GOTO(out, rc = -ENOMEM);
-
- ll_inode2mdc_data(op_data, inode, (OBD_MD_FLID | OBD_MD_MEA));
-
- rc = md_setattr(ll_i2sbi(inode)->ll_md_exp, op_data, &attr,
- (void *)XATTR_NAME_LUSTRE_ACL,
- sizeof(XATTR_NAME_LUSTRE_ACL),
- (void *)cmd, ioc->cmd_len, NULL, 0, &req);
- OBD_FREE(op_data, sizeof(*op_data));
-
- if (rc) {
- CERROR("md_setattr fails: rc = %d\n", rc);
+ rc = ll_get_max_mdsize(sbi, &lmmsize);
+ if (rc)
+ RETURN(rc);
+
+ rc = mdc_getattr(sbi->ll_mdc_exp, &fid,
+ OBD_MD_FLEASIZE|OBD_MD_FLDIREA,
+ lmmsize, &req);
+ if (rc < 0) {
+ CDEBUG(D_INFO, "mdc_getattr failed on inode "
+ "%lu/%u: rc %d\n", inode->i_ino,
+ inode->i_generation, rc);
GOTO(out, rc);
}
+ body = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*body));
+ LASSERT(body != NULL); /* checked by mdc_getattr_name */
+ /* swabbed by mdc_getattr_name */
+ LASSERT_REPSWABBED(req, REPLY_REC_OFF);
- body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*body));
- LASSERT(body);
- ioc->status = (__s32) body->flags;
-
- LASSERT(req->rq_repmsg->bufcount == 2);
- replen = req->rq_repmsg->buflens[1];
- LASSERT(replen <= LUSTRE_ACL_SIZE_MAX);
- if (replen) {
- if (replen > ioc->res_len)
- replen = ioc->res_len;
- if (copy_to_user(ioc->res,
- lustre_msg_buf(req->rq_repmsg, 1, replen),
- replen))
- rc = -EFAULT;
+ lmmsize = body->eadatasize;
+
+ if (!(body->valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
+ lmmsize == 0) {
+ GOTO(out, rc = -ENODATA);
}
- EXIT;
-out:
- if (req)
- ptlrpc_req_finished(req);
- OBD_FREE(cmd, ioc->cmd_len);
+ lmm = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF + 1, lmmsize);
+ LASSERT(lmm != NULL);
+ LASSERT_REPSWABBED(req, REPLY_REC_OFF + 1);
+
+ /*
+ * This is coming from the MDS, so is probably in
+ * little endian. We convert it to host endian before
+ * passing it to userspace.
+ */
+ if (lmm->lmm_magic == __swab32(LOV_MAGIC)) {
+ lustre_swab_lov_user_md((struct lov_user_md *)lmm);
+ lustre_swab_lov_user_md_objects((struct lov_user_md *)lmm);
+ }
+out:
+ *lmmp = lmm;
+ *lmm_size = lmmsize;
+ *request = req;
return rc;
}
CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), cmd=%#x\n",
inode->i_ino, inode->i_generation, inode, cmd);
- if (_IOC_TYPE(cmd) == 'T') /* tty ioctls */
+ /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */
+ if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */
return -ENOTTY;
lprocfs_counter_incr(ll_i2sbi(inode)->ll_stats, LPROC_LL_IOCTL);
case EXT3_IOC_GETFLAGS:
case EXT3_IOC_SETFLAGS:
RETURN(ll_iocontrol(inode, file, cmd, arg));
+ case EXT3_IOC_GETVERSION_OLD:
+ case EXT3_IOC_GETVERSION:
+ RETURN(put_user(inode->i_generation, (int *)arg));
+ /* We need to special case any other ioctls we want to handle,
+ * to send them to the MDS/OST as appropriate and to properly
+ * network encode the arg field.
+ case EXT3_IOC_SETVERSION_OLD:
+ case EXT3_IOC_SETVERSION:
+ */
case IOC_MDC_LOOKUP: {
struct ptlrpc_request *request = NULL;
- struct lustre_id id;
+ struct ll_fid fid;
char *buf = NULL;
char *filename;
int namelen, rc, len = 0;
- __u64 valid;
rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
if (rc)
GOTO(out, rc = -EINVAL);
}
- valid = OBD_MD_FLID;
- ll_inode2id(&id, inode);
- rc = md_getattr_lock(sbi->ll_md_exp, &id,
- filename, namelen, valid, 0, &request);
+ ll_inode2fid(&fid, inode);
+ rc = mdc_getattr_name(sbi->ll_mdc_exp, &fid, filename, namelen,
+ OBD_MD_FLID, 0, &request);
if (rc < 0) {
- CDEBUG(D_INFO, "md_getattr_lock: %d\n", rc);
+ CDEBUG(D_INFO, "mdc_getattr_name: %d\n", rc);
GOTO(out, rc);
}
obd_ioctl_freedata(buf, len);
return rc;
}
- case LL_IOC_KEY_TYPE: {
- char *buf = NULL;
- char *type;
- int typelen, rc, len = 0;
-
- rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
- if (rc)
- RETURN(rc);
- data = (void *)buf;
-
- type = data->ioc_inlbuf1;
- typelen = data->ioc_inllen1;
-
- if (typelen < 1) {
- CDEBUG(D_INFO, "LL_IOC_KEY_TYPE missing filename\n");
- GOTO(out_free, rc = -EINVAL);
- }
- ll_set_sb_gksinfo(inode->i_sb, type);
- EXIT;
- out_free:
- obd_ioctl_freedata(buf, len);
- RETURN(rc);
- }
- case LL_IOC_MDC_MKDIRSTRIPE:
- RETURN(ll_mkdir_stripe(inode, arg));
case LL_IOC_LOV_SETSTRIPE: {
- struct ptlrpc_request *request = NULL;
- struct mdc_op_data *op_data;
- struct iattr attr = { 0 };
struct lov_user_md lum, *lump = (struct lov_user_md *)arg;
int rc = 0;
sizeof(lump->lmm_objects[0]));
rc = copy_from_user(&lum, lump, sizeof(lum));
if (rc)
- RETURN(-EFAULT);
-
- if (lum.lmm_magic != LOV_USER_MAGIC)
- RETURN(-EINVAL);
-
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- RETURN(-ENOMEM);
-
- ll_inode2mdc_data(op_data, inode, (OBD_MD_FLID | OBD_MD_MEA));
+ return(-EFAULT);
- rc = md_setattr(sbi->ll_md_exp, op_data, &attr, &lum,
- sizeof(lum), NULL, 0, NULL, 0, &request);
- OBD_FREE(op_data, sizeof(*op_data));
- ptlrpc_req_finished(request);
+ rc = ll_dir_setstripe(inode, &lum);
- if (rc) {
- if (rc != -EPERM && rc != -EACCES)
- CERROR("md_setattr fails: rc = %d\n", rc);
- }
- RETURN(rc);
+ return rc;
}
- case LL_IOC_LOV_GETSTRIPE: {
+ case LL_IOC_OBD_STATFS:
+ RETURN(ll_obd_statfs(inode, (void *)arg));
+ case LL_IOC_LOV_GETSTRIPE:
+ case LL_IOC_MDC_GETINFO:
+ case IOC_MDC_GETFILEINFO:
+ case IOC_MDC_GETFILESTRIPE: {
struct ptlrpc_request *request = NULL;
- struct lov_user_md *lump = (struct lov_user_md *)arg;
- struct lov_mds_md *lmm;
- struct lustre_id id;
struct mds_body *body;
- __u64 valid = 0;
+ struct lov_user_md *lump;
+ struct lov_mds_md *lmm = NULL;
+ char *filename = NULL;
int rc, lmmsize;
- valid |= OBD_MD_FLDIREA;
+ if (cmd == IOC_MDC_GETFILEINFO ||
+ cmd == IOC_MDC_GETFILESTRIPE) {
+ filename = getname((const char *)arg);
+ if (IS_ERR(filename))
+ RETURN(PTR_ERR(filename));
- ll_inode2id(&id, inode);
- rc = md_getattr(sbi->ll_md_exp, &id, valid, NULL, NULL, 0,
- obd_size_diskmd(sbi->ll_dt_exp, NULL),
- NULL, &request);
- if (rc < 0) {
- CDEBUG(D_INFO, "md_getattr failed: rc = %d\n", rc);
- RETURN(rc);
+ rc = ll_lov_getstripe_ea_info(inode, filename, &lmm,
+ &lmmsize, &request);
+ } else {
+ rc = ll_dir_getstripe(inode, &lmm, &lmmsize, &request);
}
- body = lustre_msg_buf(request->rq_repmsg, 0, sizeof(*body));
- LASSERT(body != NULL); /* checked by md_getattr_lock */
- LASSERT_REPSWABBED(request, 0);/* swabbed by md_getattr_lock */
-
- lmmsize = body->eadatasize;
- if (lmmsize == 0)
- GOTO(out_get, rc = -ENODATA);
-
- lmm = lustre_msg_buf(request->rq_repmsg, 1, lmmsize);
- LASSERT(lmm != NULL);
- LASSERT_REPSWABBED(request, 1);
- rc = copy_to_user(lump, lmm, lmmsize);
- if (rc)
- GOTO(out_get, rc = -EFAULT);
-
- EXIT;
- out_get:
- ptlrpc_req_finished(request);
- RETURN(rc);
- }
- case IOC_MDC_SHOWFID: {
- struct lustre_id *idp = (struct lustre_id *)arg;
- struct lustre_id id;
- char *filename;
- int rc;
-
- filename = getname((const char *)arg);
- if (IS_ERR(filename))
- RETURN(PTR_ERR(filename));
-
- ll_inode2id(&id, inode);
-
- rc = ll_get_fid(sbi->ll_md_exp, &id, filename, &id);
- if (rc < 0)
- GOTO(out_filename, rc);
-
- rc = copy_to_user(idp, &id, sizeof(*idp));
- if (rc)
- GOTO(out_filename, rc = -EFAULT);
-
- EXIT;
- out_filename:
- putname(filename);
- return rc;
- }
- case IOC_MDC_GETSTRIPE: {
- struct lov_user_md *lump = (struct lov_user_md *)arg;
- struct ptlrpc_request *request = NULL;
- struct lov_mds_md *lmm;
- struct mds_body *body;
- struct lustre_id id;
- char *filename;
- int rc, lmmsize;
-
- filename = getname((const char *)arg);
- if (IS_ERR(filename))
- RETURN(PTR_ERR(filename));
+ if (request) {
+ body = lustre_msg_buf(request->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*body));
+ LASSERT(body != NULL); /* checked by mdc_getattr_name */
+ /* swabbed by mdc_getattr_name */
+ LASSERT_REPSWABBED(request, REPLY_REC_OFF);
+ } else {
+ GOTO(out_req, rc);
+ }
- ll_inode2id(&id, inode);
- rc = md_getattr_lock(sbi->ll_md_exp, &id, filename,
- strlen(filename) + 1, OBD_MD_FLEASIZE,
- obd_size_diskmd(sbi->ll_dt_exp, NULL),
- &request);
if (rc < 0) {
- CDEBUG(D_INFO, "md_getattr_lock failed on %s: rc %d\n",
- filename, rc);
- GOTO(out_name, rc);
+ if (rc == -ENODATA && (cmd == IOC_MDC_GETFILEINFO ||
+ cmd == LL_IOC_MDC_GETINFO))
+ GOTO(skip_lmm, rc = 0);
+ else
+ GOTO(out_req, rc);
}
- body = lustre_msg_buf(request->rq_repmsg, 0, sizeof (*body));
- LASSERT(body != NULL); /* checked by md_getattr_lock */
- LASSERT_REPSWABBED(request, 0);/* swabbed by md_getattr_lock */
-
- lmmsize = body->eadatasize;
-
- if (!(body->valid & OBD_MD_FLEASIZE) || lmmsize == 0)
- GOTO(out_req, rc = -ENODATA);
-
- if (lmmsize > 4096)
- GOTO(out_req, rc = -EFBIG);
-
- lmm = lustre_msg_buf(request->rq_repmsg, 1, lmmsize);
- LASSERT(lmm != NULL);
- LASSERT_REPSWABBED(request, 1);
-
+ if (cmd == IOC_MDC_GETFILESTRIPE ||
+ cmd == LL_IOC_LOV_GETSTRIPE) {
+ lump = (struct lov_user_md *)arg;
+ } else {
+ struct lov_user_mds_data *lmdp;
+ lmdp = (struct lov_user_mds_data *)arg;
+ lump = &lmdp->lmd_lmm;
+ }
rc = copy_to_user(lump, lmm, lmmsize);
if (rc)
- GOTO(out_req, rc = -EFAULT);
+ GOTO(out_lmm, rc = -EFAULT);
+ skip_lmm:
+ if (cmd == IOC_MDC_GETFILEINFO || cmd == LL_IOC_MDC_GETINFO) {
+ struct lov_user_mds_data *lmdp;
+ lstat_t st = { 0 };
+
+ st.st_dev = inode->i_sb->s_dev;
+ st.st_mode = body->mode;
+ st.st_nlink = body->nlink;
+ st.st_uid = body->uid;
+ st.st_gid = body->gid;
+ st.st_rdev = body->rdev;
+ st.st_size = body->size;
+ st.st_blksize = CFS_PAGE_SIZE;
+ st.st_blocks = body->blocks;
+ st.st_atime = body->atime;
+ st.st_mtime = body->mtime;
+ st.st_ctime = body->ctime;
+ st.st_ino = body->ino;
+
+ lmdp = (struct lov_user_mds_data *)arg;
+ rc = copy_to_user(&lmdp->lmd_st, &st, sizeof(st));
+ if (rc)
+ GOTO(out_lmm, rc = -EFAULT);
+ }
EXIT;
+ out_lmm:
+ if (lmm && lmm->lmm_magic == LOV_MAGIC_JOIN)
+ OBD_FREE(lmm, lmmsize);
out_req:
ptlrpc_req_finished(request);
- out_name:
- putname(filename);
+ if (filename)
+ putname(filename);
return rc;
}
- case OBD_IOC_PING: {
- struct ptlrpc_request *req = NULL;
- char *buf = NULL;
- int rc, len=0;
- struct client_obd *cli;
- struct obd_device *obd;
+ case IOC_LOV_GETINFO: {
+ struct lov_user_mds_data *lumd;
+ struct lov_stripe_md *lsm;
+ struct lov_user_md *lum;
+ struct lov_mds_md *lmm;
+ int lmmsize;
+ lstat_t st;
+ int rc;
- rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
+ lumd = (struct lov_user_mds_data *)arg;
+ lum = &lumd->lmd_lmm;
+
+ rc = ll_get_max_mdsize(sbi, &lmmsize);
if (rc)
RETURN(rc);
- data = (void *)buf;
- obd = class_name2obd(data->ioc_inlbuf1);
+ OBD_ALLOC(lmm, lmmsize);
+ rc = copy_from_user(lmm, lum, lmmsize);
+ if (rc)
+ GOTO(free_lmm, rc = -EFAULT);
- if (!obd )
- GOTO(out_ping, rc = -ENODEV);
+ rc = obd_unpackmd(sbi->ll_osc_exp, &lsm, lmm, lmmsize);
+ if (rc < 0)
+ GOTO(free_lmm, rc = -ENOMEM);
- if (!obd->obd_attached) {
- CERROR("Device %d not attached\n", obd->obd_minor);
- GOTO(out_ping, rc = -ENODEV);
- }
- if (!obd->obd_set_up) {
- CERROR("Device %d still not setup\n", obd->obd_minor);
- GOTO(out_ping, rc = -ENODEV);
- }
- cli = &obd->u.cli;
- req = ptlrpc_prep_req(cli->cl_import, LUSTRE_OBD_VERSION,
- OBD_PING, 0, NULL, NULL);
- if (!req)
- GOTO(out_ping, rc = -ENOMEM);
+ rc = obd_checkmd(sbi->ll_osc_exp, sbi->ll_mdc_exp, lsm);
+ if (rc)
+ GOTO(free_lsm, rc);
- req->rq_replen = lustre_msg_size(0, NULL);
- req->rq_send_state = LUSTRE_IMP_FULL;
+ /* Perform glimpse_size operation. */
+ memset(&st, 0, sizeof(st));
- rc = ptlrpc_queue_wait(req);
+ rc = ll_glimpse_ioctl(sbi, lsm, &st);
+ if (rc)
+ GOTO(free_lsm, rc);
- ptlrpc_req_finished(req);
- out_ping:
- obd_ioctl_freedata(buf, len);
+ rc = copy_to_user(&lumd->lmd_st, &st, sizeof(st));
+ if (rc)
+ GOTO(free_lsm, rc = -EFAULT);
+
+ EXIT;
+ free_lsm:
+ obd_free_memmd(sbi->ll_osc_exp, &lsm);
+ free_lmm:
+ OBD_FREE(lmm, lmmsize);
return rc;
}
case OBD_IOC_LLOG_CATINFO: {
struct ptlrpc_request *req = NULL;
char *buf = NULL;
int rc, len = 0;
- char *bufs[2], *str;
- int lens[2], size;
+ char *bufs[3] = { NULL }, *str;
+ int lens[3] = { sizeof(struct ptlrpc_body) };
+ int size[2] = { sizeof(struct ptlrpc_body) };
rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
if (rc)
RETURN(-EINVAL);
}
- lens[0] = data->ioc_inllen1;
- bufs[0] = data->ioc_inlbuf1;
+ lens[REQ_REC_OFF] = data->ioc_inllen1;
+ bufs[REQ_REC_OFF] = data->ioc_inlbuf1;
if (data->ioc_inllen2) {
- lens[1] = data->ioc_inllen2;
- bufs[1] = data->ioc_inlbuf2;
+ lens[REQ_REC_OFF + 1] = data->ioc_inllen2;
+ bufs[REQ_REC_OFF + 1] = data->ioc_inlbuf2;
} else {
- lens[1] = 0;
- bufs[1] = NULL;
+ lens[REQ_REC_OFF + 1] = 0;
+ bufs[REQ_REC_OFF + 1] = NULL;
}
- size = data->ioc_plen1;
- req = ptlrpc_prep_req(sbi2md(sbi)->cl_import,
- LUSTRE_LOG_VERSION, LLOG_CATINFO,
- 2, lens, bufs);
+
+ req = ptlrpc_prep_req(sbi2mdc(sbi)->cl_import,
+ LUSTRE_LOG_VERSION, LLOG_CATINFO, 3, lens,
+ bufs);
if (!req)
GOTO(out_catinfo, rc = -ENOMEM);
- req->rq_replen = lustre_msg_size(1, &size);
+ size[REPLY_REC_OFF] = data->ioc_plen1;
+ ptlrpc_req_set_repsize(req, 2, size);
rc = ptlrpc_queue_wait(req);
- str = lustre_msg_string(req->rq_repmsg, 0, data->ioc_plen1);
+ str = lustre_msg_string(req->rq_repmsg, REPLY_REC_OFF,
+ data->ioc_plen1);
if (!rc)
- rc = copy_to_user(data->ioc_pbuf1, str,
- data->ioc_plen1);
+ rc = copy_to_user(data->ioc_pbuf1, str,data->ioc_plen1);
ptlrpc_req_finished(req);
out_catinfo:
obd_ioctl_freedata(buf, len);
RETURN(rc);
}
- case LL_IOC_GETFACL: {
- struct ll_acl_ioctl_data ioc, *uioc;
+ case OBD_IOC_QUOTACHECK: {
+ struct obd_quotactl *oqctl;
+ int rc, error = 0;
+
+ if (!capable(CAP_SYS_ADMIN))
+ RETURN(-EPERM);
+
+ OBD_ALLOC_PTR(oqctl);
+ if (!oqctl)
+ RETURN(-ENOMEM);
+ oqctl->qc_type = arg;
+ rc = obd_quotacheck(sbi->ll_mdc_exp, oqctl);
+ if (rc < 0) {
+ CDEBUG(D_INFO, "mdc_quotacheck failed: rc %d\n", rc);
+ error = rc;
+ }
+
+ rc = obd_quotacheck(sbi->ll_osc_exp, oqctl);
+ if (rc < 0)
+ CDEBUG(D_INFO, "osc_quotacheck failed: rc %d\n", rc);
+
+ OBD_FREE_PTR(oqctl);
+ return error ?: rc;
+ }
+ case OBD_IOC_POLL_QUOTACHECK: {
+ struct if_quotacheck *check;
int rc;
- if (copy_from_user(&ioc, (void *) arg, sizeof(ioc)))
- RETURN(-EFAULT);
+ if (!capable(CAP_SYS_ADMIN))
+ RETURN(-EPERM);
+
+ OBD_ALLOC_PTR(check);
+ if (!check)
+ RETURN(-ENOMEM);
+
+ rc = obd_iocontrol(cmd, sbi->ll_mdc_exp, 0, (void *)check,
+ NULL);
+ if (rc) {
+ CDEBUG(D_QUOTA, "mdc ioctl %d failed: %d\n", cmd, rc);
+ if (copy_to_user((void *)arg, check, sizeof(*check)))
+ rc = -EFAULT;
+ GOTO(out_poll, rc);
+ }
- rc = ll_ioctl_getfacl(inode, file, &ioc);
- if (!rc) {
- uioc = (struct ll_acl_ioctl_data *) arg;
- if (copy_to_user(&uioc->status, &ioc.status,
- sizeof(ioc.status)))
+ rc = obd_iocontrol(cmd, sbi->ll_osc_exp, 0, (void *)check,
+ NULL);
+ if (rc) {
+ CDEBUG(D_QUOTA, "osc ioctl %d failed: %d\n", cmd, rc);
+ if (copy_to_user((void *)arg, check, sizeof(*check)))
rc = -EFAULT;
+ GOTO(out_poll, rc);
}
+ out_poll:
+ OBD_FREE_PTR(check);
RETURN(rc);
}
- case LL_IOC_SETFACL: {
- struct ll_acl_ioctl_data ioc, *uioc;
- int rc;
+#if HAVE_QUOTA_SUPPORT
+ case OBD_IOC_QUOTACTL: {
+ struct if_quotactl *qctl;
+ struct obd_quotactl *oqctl;
- if (copy_from_user(&ioc, (void *) arg, sizeof(ioc)))
- RETURN(-EFAULT);
+ int cmd, type, id, rc = 0;
+
+ OBD_ALLOC_PTR(qctl);
+ if (!qctl)
+ RETURN(-ENOMEM);
+
+ OBD_ALLOC_PTR(oqctl);
+ if (!oqctl) {
+ OBD_FREE_PTR(qctl);
+ RETURN(-ENOMEM);
+ }
+ if (copy_from_user(qctl, (void *)arg, sizeof(*qctl)))
+ GOTO(out_quotactl, rc = -EFAULT);
+
+ cmd = qctl->qc_cmd;
+ type = qctl->qc_type;
+ id = qctl->qc_id;
+ switch (cmd) {
+ case Q_QUOTAON:
+ case Q_QUOTAOFF:
+ case Q_SETQUOTA:
+ case Q_SETINFO:
+ if (!capable(CAP_SYS_ADMIN))
+ GOTO(out_quotactl, rc = -EPERM);
+ break;
+ case Q_GETQUOTA:
+ if (((type == USRQUOTA && current->euid != id) ||
+ (type == GRPQUOTA && !in_egroup_p(id))) &&
+ !capable(CAP_SYS_ADMIN))
+ GOTO(out_quotactl, rc = -EPERM);
+
+ /* XXX: dqb_valid is borrowed as a flag to mark that
+ * only mds quota is wanted */
+ if (qctl->qc_dqblk.dqb_valid)
+ qctl->obd_uuid = sbi->ll_mdc_exp->exp_obd->
+ u.cli.cl_target_uuid;
+ break;
+ case Q_GETINFO:
+ break;
+ default:
+ CERROR("unsupported quotactl op: %#x\n", cmd);
+ GOTO(out_quotactl, -ENOTTY);
+ }
+
+ QCTL_COPY(oqctl, qctl);
+
+ if (qctl->obd_uuid.uuid[0]) {
+ struct obd_device *obd;
+ struct obd_uuid *uuid = &qctl->obd_uuid;
+
+ obd = class_find_client_notype(uuid,
+ &sbi->ll_osc_exp->exp_obd->obd_uuid);
+ if (!obd)
+ GOTO(out_quotactl, rc = -ENOENT);
+
+ if (cmd == Q_GETINFO)
+ oqctl->qc_cmd = Q_GETOINFO;
+ else if (cmd == Q_GETQUOTA)
+ oqctl->qc_cmd = Q_GETOQUOTA;
+ else
+ GOTO(out_quotactl, rc = -EINVAL);
+
+ if (sbi->ll_mdc_exp->exp_obd == obd) {
+ rc = obd_quotactl(sbi->ll_mdc_exp, oqctl);
+ } else {
+ int i;
+ struct obd_export *exp;
+ struct lov_obd *lov = &sbi->ll_osc_exp->
+ exp_obd->u.lov;
+
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i] ||
+ !lov->lov_tgts[i]->ltd_active)
+ continue;
+ exp = lov->lov_tgts[i]->ltd_exp;
+ if (exp->exp_obd == obd) {
+ rc = obd_quotactl(exp, oqctl);
+ break;
+ }
+ }
+ }
- rc = ll_ioctl_setfacl(inode, file, &ioc);
- if (!rc) {
- uioc = (struct ll_acl_ioctl_data *) arg;
- if (copy_to_user(&uioc->status, &ioc.status,
- sizeof(ioc.status)))
+ oqctl->qc_cmd = cmd;
+ QCTL_COPY(qctl, oqctl);
+
+ if (copy_to_user((void *)arg, qctl, sizeof(*qctl)))
rc = -EFAULT;
+
+ GOTO(out_quotactl, rc);
+ }
+
+ rc = obd_quotactl(sbi->ll_mdc_exp, oqctl);
+ if (rc && rc != -EBUSY && cmd == Q_QUOTAON) {
+ oqctl->qc_cmd = Q_QUOTAOFF;
+ obd_quotactl(sbi->ll_mdc_exp, oqctl);
}
+
+ QCTL_COPY(qctl, oqctl);
+
+ if (copy_to_user((void *)arg, qctl, sizeof(*qctl)))
+ rc = -EFAULT;
+ out_quotactl:
+ OBD_FREE_PTR(qctl);
+ OBD_FREE_PTR(oqctl);
RETURN(rc);
}
- case LL_IOC_FLUSH_CRED:
- RETURN(ll_flush_cred(inode));
- case LL_IOC_AUDIT:
- RETURN(ll_set_audit(inode, SET_AUDIT_OP(arg, AUDIT_DIR)));
+#endif /* HAVE_QUOTA_SUPPORT */
+ case OBD_IOC_GETNAME: {
+ struct obd_device *obd = class_exp2obd(sbi->ll_osc_exp);
+ if (!obd)
+ RETURN(-EFAULT);
+ if (copy_to_user((void *)arg, obd->obd_name,
+ strlen(obd->obd_name) + 1))
+ RETURN (-EFAULT);
+ RETURN(0);
+ }
default:
- return obd_iocontrol(cmd, sbi->ll_dt_exp, 0,
- NULL, (void *)arg);
+ RETURN(obd_iocontrol(cmd, sbi->ll_osc_exp,0,NULL,(void *)arg));
}
}
int ll_dir_open(struct inode *inode, struct file *file)
{
- return ll_file_open(inode, file);
+ ENTRY;
+ RETURN(ll_file_open(inode, file));
}
int ll_dir_release(struct inode *inode, struct file *file)
{
- return ll_file_release(inode, file);
+ ENTRY;
+ RETURN(ll_file_release(inode, file));
}
struct file_operations ll_dir_operations = {
git://git.whamcloud.com / fs / lustre-release.git / blobdiff