set_bit(LL_SBI_TINY_WRITE, sbi->ll_flags);
set_bit(LL_SBI_PARALLEL_DIO, sbi->ll_flags);
ll_sbi_set_encrypt(sbi, true);
+ ll_sbi_set_name_encrypt(sbi, true);
/* root squash */
sbi->ll_squash.rsi_uid = 0;
data->ocd_connect_flags &= ~OBD_CONNECT_PINGLESS;
obd_connect_set_secctx(data);
- if (ll_sbi_has_encrypt(sbi))
+ if (ll_sbi_has_encrypt(sbi)) {
+ obd_connect_set_name_enc(data);
obd_connect_set_enc(data);
+ }
#if defined(CONFIG_SECURITY)
data->ocd_connect_flags2 |= OBD_CONNECT2_SELINUX_POLICY;
sb->s_blocksize_bits = log2(osfs->os_bsize);
sb->s_magic = LL_SUPER_MAGIC;
sb->s_maxbytes = MAX_LFS_FILESIZE;
+ sbi->ll_inode_cache_enabled = 1;
sbi->ll_namelen = osfs->os_namelen;
sbi->ll_mnt.mnt = current->fs->root.mnt;
sbi->ll_mnt_ns = current->nsproxy->mnt_ns;
set_bit(LL_SBI_FILE_SECCTX, sbi->ll_flags);
if (ll_sbi_has_encrypt(sbi) && !obd_connect_has_enc(data)) {
- if (ll_sbi_has_test_dummy_encryption(sbi))
+ if (ll_sb_has_test_dummy_encryption(sb))
LCONSOLE_WARN("%s: server %s does not support encryption feature, encryption deactivated.\n",
sbi->ll_fsname,
sbi->ll_md_exp->exp_obd->obd_name);
ll_sbi_set_encrypt(sbi, false);
}
+ if (ll_sbi_has_name_encrypt(sbi) && !obd_connect_has_name_enc(data)) {
+ struct lustre_sb_info *lsi = s2lsi(sb);
+
+ if (ll_sb_has_test_dummy_encryption(sb))
+ LCONSOLE_WARN("%s: server %s does not support name encryption, not using it.\n",
+ sbi->ll_fsname,
+ sbi->ll_md_exp->exp_obd->obd_name);
+ lsi->lsi_flags &= ~LSI_FILENAME_ENC;
+ ll_sbi_set_name_encrypt(sbi, false);
+ }
+
if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) {
if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) {
LCONSOLE_INFO("%s: disabling xattr cache due to "
if (ll_sbi_has_encrypt(sbi) &&
!obd_connect_has_enc(&sbi->ll_dt_obd->u.lov.lov_ocd)) {
- if (ll_sbi_has_test_dummy_encryption(sbi))
+ if (ll_sb_has_test_dummy_encryption(sb))
LCONSOLE_WARN("%s: server %s does not support encryption feature, encryption deactivated.\n",
sbi->ll_fsname, dt);
ll_sbi_set_encrypt(sbi, false);
- } else if (ll_sbi_has_test_dummy_encryption(sbi)) {
+ } else if (ll_sb_has_test_dummy_encryption(sb)) {
LCONSOLE_WARN("Test dummy encryption mode enabled\n");
}
{LL_SBI_VERBOSE, "verbose"},
{LL_SBI_VERBOSE, "noverbose"},
{LL_SBI_ALWAYS_PING, "always_ping"},
+ {LL_SBI_TEST_DUMMY_ENCRYPTION, "test_dummy_encryption=%s"},
{LL_SBI_TEST_DUMMY_ENCRYPTION, "test_dummy_encryption"},
{LL_SBI_ENCRYPT, "encrypt"},
{LL_SBI_ENCRYPT, "noencrypt"},
{LL_SBI_TINY_WRITE, "tiny_write"},
{LL_SBI_FILE_HEAT, "file_heat"},
{LL_SBI_PARALLEL_DIO, "parallel_dio"},
+ {LL_SBI_ENCRYPT_NAME, "name_encrypt"},
};
int ll_sbi_flags_seq_show(struct seq_file *m, void *v)
{
struct ll_sb_info *sbi = ll_s2sbi(sb);
char *s2, *s1, *opts;
+ int err = 0;
ENTRY;
if (!options)
break;
case LL_SBI_TEST_DUMMY_ENCRYPTION: {
#ifdef HAVE_LUSTRE_CRYPTO
+#ifdef HAVE_FSCRYPT_DUMMY_CONTEXT_ENABLED
set_bit(token, sbi->ll_flags);
#else
+ struct lustre_sb_info *lsi = s2lsi(sb);
+
+ err = llcrypt_set_test_dummy_encryption(sb, &args[0],
+ &lsi->lsi_dummy_enc_ctx);
+ if (!err)
+ break;
+
+ if (err == -EEXIST)
+ LCONSOLE_WARN(
+ "Can't change test_dummy_encryption");
+ else if (err == -EINVAL)
+ LCONSOLE_WARN(
+ "Value of option \"%s\" unrecognized",
+ options);
+ else
+ LCONSOLE_WARN(
+ "Error processing option \"%s\" [%d]",
+ options, err);
+ err = -1;
+#endif
+#else
LCONSOLE_WARN("Test dummy encryption mount option ignored: encryption not supported\n");
#endif
break;
}
}
kfree(opts);
- RETURN(0);
+ RETURN(err);
}
void ll_lli_init(struct ll_inode_info *lli)
#define MAX_STRING_SIZE 128
#ifndef HAVE_SUPER_SETUP_BDI_NAME
-
-#define LSI_BDI_INITIALIZED 0x00400000
-
#ifndef HAVE_BDI_CAP_MAP_COPY
# define BDI_CAP_MAP_COPY 0
#endif
if (err)
GOTO(out_free_cfg, err);
+ if (ll_sb_has_test_dummy_encryption(sb))
+ /* enable filename encryption by default for dummy enc mode */
+ lsi->lsi_flags |= LSI_FILENAME_ENC;
+ else
+ /* filename encryption is disabled by default */
+ lsi->lsi_flags &= ~LSI_FILENAME_ENC;
+
/* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */
sb->s_d_op = &ll_d_ops;
client_common_put_super(sb);
}
+ /* imitate failed cleanup */
+ if (OBD_FAIL_CHECK(OBD_FAIL_OBD_CLEANUP))
+ goto skip_cleanup;
+
next = 0;
while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)))
class_manual_cleanup(obd);
+skip_cleanup:
if (test_bit(LL_SBI_VERBOSE, sbi->ll_flags))
LCONSOLE_WARN("Unmounted %s\n", profilenm ? profilenm : "");
}
#endif
+ llcrypt_free_dummy_context(&lsi->lsi_dummy_enc_ctx);
ll_free_sbi(sb);
lsi->lsi_llsbi = NULL;
out_no_sbi:
lmv_free_memmd(lli->lli_default_lsm_md);
lli->lli_default_lsm_md = NULL;
}
+ lli->lli_inherit_depth = 0;
up_write(&lli->lli_lsm_sem);
}
RETURN_EXIT;
}
rc = ll_init_lsm_md(inode, md);
- up_write(&lli->lli_lsm_sem);
-
- if (rc)
+ if (rc) {
+ up_write(&lli->lli_lsm_sem);
RETURN(rc);
+ }
+
+ /* md_merge_attr() may take long, since lsm is already set, switch to
+ * read lock.
+ */
+ downgrade_write(&lli->lli_lsm_sem);
/* set md->lmv to NULL, so the following free lustre_md will not free
* this lsm.
*/
md->lmv = NULL;
- /* md_merge_attr() may take long, since lsm is already set, switch to
- * read lock.
- */
- down_read(&lli->lli_lsm_sem);
-
if (!lmv_dir_striped(lli->lli_lsm_md))
GOTO(unlock, rc = 0);
struct cl_2queue *queue = NULL;
struct cl_sync_io *anchor = NULL;
bool holdinglock = false;
- bool lockedbymyself = true;
int rc;
ENTRY;
if (!PageUptodate(vmpage) && !PageDirty(vmpage) &&
!PageWriteback(vmpage)) {
/* read page */
- /* set PagePrivate2 to detect special case of empty page
- * in osc_brw_fini_request()
+ /* Set PagePrivate2 to detect special case of empty page
+ * in osc_brw_fini_request().
+ * It is also used to tell ll_io_read_page() that we do not
+ * want the vmpage to be unlocked.
*/
SetPagePrivate2(vmpage);
rc = ll_io_read_page(env, io, clpage, NULL);
- if (!PagePrivate2(vmpage))
+ if (!PagePrivate2(vmpage)) {
/* PagePrivate2 was cleared in osc_brw_fini_request()
* meaning we read an empty page. In this case, in order
* to avoid allocating unnecessary block in truncated
* file, we must not zero and write as below. Subsequent
* server-side truncate will handle things correctly.
*/
+ cl_page_unassume(env, io, clpage);
GOTO(clpfini, rc = 0);
+ }
ClearPagePrivate2(vmpage);
if (rc)
GOTO(clpfini, rc);
- lockedbymyself = trylock_page(vmpage);
- cl_page_assume(env, io, clpage);
}
- /* zero range in page */
+ /* Thanks to PagePrivate2 flag, ll_io_read_page() did not unlock
+ * the vmpage, so we are good to proceed and zero range in page.
+ */
zero_user(vmpage, offset, len);
if (holdinglock && clpage) {
anchor = &vvp_env_info(env)->vti_anchor;
cl_sync_io_init(anchor, 1);
clpage->cp_sync_io = anchor;
- cl_2queue_add(queue, clpage, true);
+ cl_page_list_add(&queue->c2_qin, clpage, true);
rc = cl_io_submit_rw(env, io, CRT_WRITE, queue);
if (rc)
GOTO(queuefini1, rc);
queuefini2:
cl_2queue_discard(env, io, queue);
queuefini1:
- cl_2queue_disown(env, io, queue);
+ cl_2queue_disown(env, queue);
cl_2queue_fini(env, queue);
}
if (clpage)
cl_page_put(env, clpage);
pagefini:
- if (lockedbymyself) {
- unlock_page(vmpage);
- put_page(vmpage);
- }
+ unlock_page(vmpage);
+ put_page(vmpage);
rellock:
if (holdinglock)
cl_lock_release(env, lock);
return 0;
}
+/* child default LMV is inherited from parent */
+static inline bool ll_default_lmv_inherited(struct lmv_stripe_md *pdmv,
+ struct lmv_stripe_md *cdmv)
+{
+ if (!pdmv || !cdmv)
+ return false;
+
+ if (pdmv->lsm_md_magic != cdmv->lsm_md_magic ||
+ pdmv->lsm_md_stripe_count != cdmv->lsm_md_stripe_count ||
+ pdmv->lsm_md_master_mdt_index != cdmv->lsm_md_master_mdt_index ||
+ pdmv->lsm_md_hash_type != cdmv->lsm_md_hash_type)
+ return false;
+
+ if (cdmv->lsm_md_max_inherit !=
+ lmv_inherit_next(pdmv->lsm_md_max_inherit))
+ return false;
+
+ if (cdmv->lsm_md_max_inherit_rr !=
+ lmv_inherit_rr_next(pdmv->lsm_md_max_inherit_rr))
+ return false;
+
+ return true;
+}
+
/* update directory depth to ROOT, called after LOOKUP lock is fetched. */
void ll_update_dir_depth(struct inode *dir, struct inode *inode)
{
+ struct ll_inode_info *plli;
struct ll_inode_info *lli;
if (!S_ISDIR(inode->i_mode))
if (inode == dir)
return;
+ plli = ll_i2info(dir);
lli = ll_i2info(inode);
- lli->lli_dir_depth = ll_i2info(dir)->lli_dir_depth + 1;
- CDEBUG(D_INODE, DFID" depth %hu\n",
- PFID(&lli->lli_fid), lli->lli_dir_depth);
+ lli->lli_dir_depth = plli->lli_dir_depth + 1;
+ if (plli->lli_default_lsm_md && lli->lli_default_lsm_md) {
+ down_read(&plli->lli_lsm_sem);
+ down_read(&lli->lli_lsm_sem);
+ if (ll_default_lmv_inherited(plli->lli_default_lsm_md,
+ lli->lli_default_lsm_md))
+ lli->lli_inherit_depth =
+ plli->lli_inherit_depth + 1;
+ else
+ lli->lli_inherit_depth = 0;
+ up_read(&lli->lli_lsm_sem);
+ up_read(&plli->lli_lsm_sem);
+ } else {
+ lli->lli_inherit_depth = 0;
+ }
+
+ CDEBUG(D_INODE, DFID" depth %hu default LMV depth %hu\n",
+ PFID(&lli->lli_fid), lli->lli_dir_depth, lli->lli_inherit_depth);
}
void ll_truncate_inode_pages_final(struct inode *inode)
EXIT;
}
+/* set filesystem-wide default LMV for subdir mount if it's enabled on ROOT. */
+static int ll_fileset_default_lmv_fixup(struct inode *inode,
+ struct lustre_md *md)
+{
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct ptlrpc_request *req = NULL;
+ union lmv_mds_md *lmm = NULL;
+ int size = 0;
+ int rc;
+
+ LASSERT(is_root_inode(inode));
+ LASSERT(!fid_is_root(&sbi->ll_root_fid));
+ LASSERT(!md->default_lmv);
+
+ rc = ll_dir_get_default_layout(inode, (void **)&lmm, &size, &req,
+ OBD_MD_DEFAULT_MEA,
+ GET_DEFAULT_LAYOUT_ROOT);
+ if (rc && rc != -ENODATA)
+ GOTO(out, rc);
+
+ rc = 0;
+ if (lmm && size) {
+ rc = md_unpackmd(sbi->ll_md_exp, &md->default_lmv, lmm, size);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ rc = 0;
+ }
+ EXIT;
+out:
+ if (req)
+ ptlrpc_req_finished(req);
+ return rc;
+}
+
int ll_prep_inode(struct inode **inode, struct req_capsule *pill,
struct super_block *sb, struct lookup_intent *it)
{
* ll_update_lsm_md() may change md.
*/
if (it && (it->it_op & (IT_LOOKUP | IT_GETATTR)) &&
- S_ISDIR(md.body->mbo_mode) && !md.default_lmv)
- default_lmv_deleted = true;
+ S_ISDIR(md.body->mbo_mode) && !md.default_lmv) {
+ if (unlikely(*inode && is_root_inode(*inode) &&
+ !fid_is_root(&sbi->ll_root_fid))) {
+ rc = ll_fileset_default_lmv_fixup(*inode, &md);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ if (!md.default_lmv)
+ default_lmv_deleted = true;
+ }
if (*inode) {
rc = ll_update_inode(*inode, &md);
return ERR_PTR(-ENOMEM);
ll_i2gids(op_data->op_suppgids, i1, i2);
- op_data->op_fid1 = *ll_inode2fid(i1);
+ /* If the client is using a subdir mount and looks at what it sees as
+ * /.fscrypt, interpret it as the .fscrypt dir at the root of the fs.
+ */
+ if (unlikely(i1->i_sb && i1->i_sb->s_root && is_root_inode(i1) &&
+ !fid_is_root(ll_inode2fid(i1)) &&
+ name && namelen == strlen(dot_fscrypt_name) &&
+ strncmp(name, dot_fscrypt_name, namelen) == 0))
+ lu_root_fid(&op_data->op_fid1);
+ else
+ op_data->op_fid1 = *ll_inode2fid(i1);
if (S_ISDIR(i1->i_mode)) {
down_read_non_owner(&ll_i2info(i1)->lli_lsm_sem);
op_data->op_bias = MDS_FID_OP;
}
if (fname.disk_name.name &&
- fname.disk_name.name != (unsigned char *)name)
+ fname.disk_name.name != (unsigned char *)name) {
/* op_data->op_name must be freed after use */
op_data->op_flags |= MF_OPNAME_KMALLOCED;
+ }
}
/* In fact LUSTRE_OPC_LOOKUP, LUSTRE_OPC_OPEN
}
}
+ llcrypt_show_test_dummy_encryption(seq, ',', dentry->d_sb);
+
RETURN(0);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff