/**
* Retrieve the current HSM flags, archive id and undergoing HSM requests for
* the fid provided in RPC body.
*
* Current requests are read from coordinator states.
*
* This is MDS_HSM_STATE_GET RPC handler.
*/
int mdt_hsm_state_get(struct tgt_session_info *tsi)
{
struct mdt_thread_info *info = tsi2mdt_info(tsi);
struct mdt_object *obj = info->mti_object;
struct md_attr *ma = &info->mti_attr;
struct hsm_user_state *hus;
struct mdt_lock_handle *lh;
int rc;
ENTRY;
if (info->mti_body == NULL || obj == NULL)
GOTO(out, rc = -EPROTO);
/* Only valid if client is remote */
rc = mdt_init_ucred(info, (struct mdt_body *)info->mti_body);
if (rc < 0)
GOTO(out, rc = err_serious(rc));
lh = &info->mti_lh[MDT_LH_CHILD];
mdt_lock_reg_init(lh, LCK_PR);
rc = mdt_object_lock(info, obj, lh, MDS_INODELOCK_LOOKUP);
if (rc < 0)
GOTO(out_ucred, rc);
ma->ma_valid = 0;
ma->ma_need = MA_HSM;
rc = mdt_attr_get_complex(info, obj, ma);
if (rc)
GOTO(out_unlock, rc);
hus = req_capsule_server_get(tsi->tsi_pill, &RMF_HSM_USER_STATE);
if (hus == NULL)
GOTO(out_unlock, rc = -EPROTO);
/* Current HSM flags */
hus->hus_states = ma->ma_hsm.mh_flags;
hus->hus_archive_id = ma->ma_hsm.mh_arch_id;
EXIT;
out_unlock:
mdt_object_unlock(info, obj, lh, 1);
out_ucred:
mdt_exit_ucred(info);
out:
mdt_thread_info_fini(info);
return rc;
}
static inline bool mdt_hsm_is_admin(struct mdt_thread_info *info)
{
bool is_admin;
int rc;
if (info->mti_body == NULL)
return false;
rc = mdt_init_ucred(info, (struct mdt_body *)info->mti_body);
if (rc < 0)
return false;
is_admin = md_capable(mdt_ucred(info), CFS_CAP_SYS_ADMIN);
mdt_exit_ucred(info);
return is_admin;
}
int mdt_getxattr(struct mdt_thread_info *info)
{
struct ptlrpc_request *req = mdt_info_req(info);
struct mdt_export_data *med = mdt_req2med(req);
struct md_ucred *uc = mdt_ucred(info);
struct mdt_body *reqbody;
struct mdt_body *repbody = NULL;
struct md_object *next;
struct lu_buf *buf;
__u32 remote = exp_connect_rmtclient(info->mti_exp);
__u32 perm;
int easize, rc;
ENTRY;
LASSERT(info->mti_object != NULL);
LASSERT(lu_object_assert_exists(&info->mti_object->mot_obj.mo_lu));
CDEBUG(D_INODE, "getxattr "DFID"\n", PFID(&info->mti_body->fid1));
reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
if (reqbody == NULL)
RETURN(err_serious(-EFAULT));
rc = mdt_init_ucred(info, reqbody);
if (rc)
RETURN(err_serious(rc));
next = mdt_object_child(info->mti_object);
if (info->mti_body->valid & OBD_MD_FLRMTRGETFACL) {
if (unlikely(!remote))
GOTO(out, rc = err_serious(-EINVAL));
perm = mdt_identity_get_perm(uc->mu_identity, remote,
req->rq_peer.nid);
if (!(perm & CFS_RMTACL_PERM))
GOTO(out, rc = err_serious(-EPERM));
rc = mo_permission(info->mti_env, NULL, next, NULL,
MAY_RGETFACL);
if (rc)
GOTO(out, rc = err_serious(rc));
}
easize = mdt_getxattr_pack_reply(info);
if (easize < 0)
GOTO(out, rc = err_serious(easize));
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
LASSERT(repbody != NULL);
/* No need further getxattr. */
if (easize == 0 || reqbody->eadatasize == 0)
GOTO(out, rc = easize);
buf = &info->mti_buf;
buf->lb_buf = req_capsule_server_get(info->mti_pill, &RMF_EADATA);
buf->lb_len = easize;
if (info->mti_body->valid & OBD_MD_FLXATTR) {
int flags = CFS_IC_NOTHING;
char *xattr_name = req_capsule_client_get(info->mti_pill,
&RMF_NAME);
CDEBUG(D_INODE, "getxattr %s\n", xattr_name);
rc = mo_xattr_get(info->mti_env, next, buf, xattr_name);
if (rc < 0) {
CERROR("getxattr failed: %d\n", rc);
GOTO(out, rc);
}
if (info->mti_body->valid &
(OBD_MD_FLRMTLSETFACL | OBD_MD_FLRMTLGETFACL))
flags = CFS_IC_ALL;
else if (info->mti_body->valid & OBD_MD_FLRMTRGETFACL)
flags = CFS_IC_MAPPED;
if (rc > 0 && flags != CFS_IC_NOTHING) {
int rc1;
if (unlikely(!remote))
GOTO(out, rc = -EINVAL);
rc1 = lustre_posix_acl_xattr_id2client(uc,
med->med_idmap,
(posix_acl_xattr_header *)(buf->lb_buf),
rc, flags);
if (unlikely(rc1 < 0))
rc = rc1;
}
} else if (info->mti_body->valid & OBD_MD_FLXATTRLS) {
CDEBUG(D_INODE, "listxattr\n");
rc = mo_xattr_list(info->mti_env, next, buf);
if (rc < 0)
CDEBUG(D_INFO, "listxattr failed: %d\n", rc);
} else
LBUG();
EXIT;
out:
if (rc >= 0) {
mdt_counter_incr(req->rq_export, LPROC_MDT_GETXATTR);
repbody->eadatasize = rc;
rc = 0;
}
mdt_exit_ucred(info);
return rc;
}
int mdt_getxattr(struct mdt_thread_info *info)
{
struct ptlrpc_request *req = mdt_info_req(info);
struct mdt_export_data *med = mdt_req2med(req);
struct lu_ucred *uc = lu_ucred(info->mti_env);
struct mdt_body *reqbody;
struct mdt_body *repbody = NULL;
struct md_object *next;
struct lu_buf *buf;
__u32 remote = exp_connect_rmtclient(info->mti_exp);
__u32 perm;
int easize, rc;
obd_valid valid;
ENTRY;
LASSERT(info->mti_object != NULL);
LASSERT(lu_object_assert_exists(&info->mti_object->mot_obj));
CDEBUG(D_INODE, "getxattr "DFID"\n", PFID(&info->mti_body->fid1));
reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
if (reqbody == NULL)
RETURN(err_serious(-EFAULT));
rc = mdt_init_ucred(info, reqbody);
if (rc)
RETURN(err_serious(rc));
next = mdt_object_child(info->mti_object);
if (info->mti_body->valid & OBD_MD_FLRMTRGETFACL) {
if (unlikely(!remote))
GOTO(out, rc = err_serious(-EINVAL));
perm = mdt_identity_get_perm(uc->uc_identity, remote,
req->rq_peer.nid);
if (!(perm & CFS_RMTACL_PERM))
GOTO(out, rc = err_serious(-EPERM));
rc = mo_permission(info->mti_env, NULL, next, NULL,
MAY_RGETFACL);
if (rc)
GOTO(out, rc = err_serious(rc));
}
easize = mdt_getxattr_pack_reply(info);
if (easize < 0)
GOTO(out, rc = err_serious(easize));
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
LASSERT(repbody != NULL);
/* No need further getxattr. */
if (easize == 0 || reqbody->eadatasize == 0)
GOTO(out, rc = easize);
buf = &info->mti_buf;
buf->lb_buf = req_capsule_server_get(info->mti_pill, &RMF_EADATA);
buf->lb_len = easize;
valid = info->mti_body->valid & (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS);
if (valid == OBD_MD_FLXATTR) {
char *xattr_name = req_capsule_client_get(info->mti_pill,
&RMF_NAME);
rc = mdt_getxattr_one(info, xattr_name, next, buf, med, uc);
} else if (valid == OBD_MD_FLXATTRLS) {
CDEBUG(D_INODE, "listxattr\n");
rc = mo_xattr_list(info->mti_env, next, buf);
if (rc < 0)
CDEBUG(D_INFO, "listxattr failed: %d\n", rc);
} else if (valid == OBD_MD_FLXATTRALL) {
rc = mdt_getxattr_all(info, reqbody, repbody,
buf, next);
} else
LBUG();
EXIT;
out:
if (rc >= 0) {
mdt_counter_incr(req, LPROC_MDT_GETXATTR);
repbody->eadatasize = rc;
rc = 0;
}
mdt_exit_ucred(info);
return rc;
}
/**
* Process the HSM actions described in a struct hsm_user_request.
*
* The action described in hur will be send to coordinator to be saved and
* processed later or either handled directly if hur.hur_action is HUA_RELEASE.
*
* This is MDS_HSM_REQUEST RPC handler.
*/
int mdt_hsm_request(struct tgt_session_info *tsi)
{
struct mdt_thread_info *info;
struct req_capsule *pill = tsi->tsi_pill;
struct hsm_request *hr;
struct hsm_user_item *hui;
struct hsm_action_list *hal;
struct hsm_action_item *hai;
const void *data;
int hui_list_size;
int data_size;
enum hsm_copytool_action action = HSMA_NONE;
__u64 compound_id;
int hal_size, i, rc;
ENTRY;
hr = req_capsule_client_get(pill, &RMF_MDS_HSM_REQUEST);
hui = req_capsule_client_get(pill, &RMF_MDS_HSM_USER_ITEM);
data = req_capsule_client_get(pill, &RMF_GENERIC_DATA);
if (tsi->tsi_mdt_body == NULL || hr == NULL || hui == NULL || data == NULL)
RETURN(-EPROTO);
/* Sanity check. Nothing to do with an empty list */
if (hr->hr_itemcount == 0)
RETURN(0);
hui_list_size = req_capsule_get_size(pill, &RMF_MDS_HSM_USER_ITEM,
RCL_CLIENT);
if (hui_list_size < hr->hr_itemcount * sizeof(*hui))
RETURN(-EPROTO);
data_size = req_capsule_get_size(pill, &RMF_GENERIC_DATA, RCL_CLIENT);
if (data_size != hr->hr_data_len)
RETURN(-EPROTO);
info = tsi2mdt_info(tsi);
/* Only valid if client is remote */
rc = mdt_init_ucred(info, (struct mdt_body *)info->mti_body);
if (rc)
GOTO(out, rc);
switch (hr->hr_action) {
/* code to be removed in hsm1_merge and final patch */
case HUA_RELEASE:
CERROR("Release action is not working in hsm1_coord\n");
GOTO(out_ucred, rc = -EINVAL);
break;
/* end of code to be removed */
case HUA_ARCHIVE:
action = HSMA_ARCHIVE;
break;
case HUA_RESTORE:
action = HSMA_RESTORE;
break;
case HUA_REMOVE:
action = HSMA_REMOVE;
break;
case HUA_CANCEL:
action = HSMA_CANCEL;
break;
default:
CERROR("Unknown hsm action: %d\n", hr->hr_action);
GOTO(out_ucred, rc = -EINVAL);
}
hal_size = sizeof(*hal) + cfs_size_round(MTI_NAME_MAXLEN) /* fsname */ +
(sizeof(*hai) + cfs_size_round(hr->hr_data_len)) *
hr->hr_itemcount;
MDT_HSM_ALLOC(hal, hal_size);
if (hal == NULL)
GOTO(out_ucred, rc = -ENOMEM);
hal->hal_version = HAL_VERSION;
hal->hal_archive_id = hr->hr_archive_id;
hal->hal_flags = hr->hr_flags;
obd_uuid2fsname(hal->hal_fsname, mdt_obd_name(info->mti_mdt),
MTI_NAME_MAXLEN);
hal->hal_count = 0;
hai = hai_first(hal);
for (i = 0; i < hr->hr_itemcount; i++, hai = hai_next(hai)) {
/* Get rid of duplicate entries. Otherwise we get
* duplicated work in the llog. */
if (is_fid_in_hal(hal, &hui[i].hui_fid))
continue;
hai->hai_action = action;
hai->hai_cookie = 0;
hai->hai_gid = 0;
hai->hai_fid = hui[i].hui_fid;
hai->hai_extent = hui[i].hui_extent;
memcpy(hai->hai_data, data, hr->hr_data_len);
hai->hai_len = sizeof(*hai) + hr->hr_data_len;
hal->hal_count++;
}
rc = mdt_hsm_add_actions(info, hal, &compound_id);
MDT_HSM_FREE(hal, hal_size);
GOTO(out_ucred, rc);
out_ucred:
mdt_exit_ucred(info);
out:
mdt_thread_info_fini(info);
return rc;
}
/**
* Retrieve undergoing HSM requests for the fid provided in RPC body.
* Current requests are read from coordinator states.
*
* This is MDS_HSM_ACTION RPC handler.
*/
int mdt_hsm_action(struct tgt_session_info *tsi)
{
struct mdt_thread_info *info;
struct hsm_current_action *hca;
struct hsm_action_list *hal = NULL;
struct hsm_action_item *hai;
int hal_size;
int rc;
ENTRY;
hca = req_capsule_server_get(tsi->tsi_pill,
&RMF_MDS_HSM_CURRENT_ACTION);
if (hca == NULL)
RETURN(err_serious(-EPROTO));
if (tsi->tsi_mdt_body == NULL)
RETURN(-EPROTO);
info = tsi2mdt_info(tsi);
/* Only valid if client is remote */
rc = mdt_init_ucred(info, (struct mdt_body *)info->mti_body);
if (rc)
GOTO(out, rc = err_serious(rc));
/* Coordinator information */
hal_size = sizeof(*hal) +
cfs_size_round(MTI_NAME_MAXLEN) /* fsname */ +
cfs_size_round(sizeof(*hai));
MDT_HSM_ALLOC(hal, hal_size);
if (hal == NULL)
GOTO(out_ucred, rc = -ENOMEM);
hal->hal_version = HAL_VERSION;
hal->hal_archive_id = 0;
hal->hal_flags = 0;
obd_uuid2fsname(hal->hal_fsname, mdt_obd_name(info->mti_mdt),
MTI_NAME_MAXLEN);
hal->hal_count = 1;
hai = hai_first(hal);
hai->hai_action = HSMA_NONE;
hai->hai_cookie = 0;
hai->hai_gid = 0;
hai->hai_fid = info->mti_body->mbo_fid1;
hai->hai_len = sizeof(*hai);
rc = mdt_hsm_get_actions(info, hal);
if (rc)
GOTO(out_free, rc);
/* cookie is used to give back request status */
if (hai->hai_cookie == 0)
hca->hca_state = HPS_WAITING;
else
hca->hca_state = HPS_RUNNING;
switch (hai->hai_action) {
case HSMA_NONE:
hca->hca_action = HUA_NONE;
break;
case HSMA_ARCHIVE:
hca->hca_action = HUA_ARCHIVE;
break;
case HSMA_RESTORE:
hca->hca_action = HUA_RESTORE;
break;
case HSMA_REMOVE:
hca->hca_action = HUA_REMOVE;
break;
case HSMA_CANCEL:
hca->hca_action = HUA_CANCEL;
break;
default:
hca->hca_action = HUA_NONE;
CERROR("%s: Unknown hsm action: %d on "DFID"\n",
mdt_obd_name(info->mti_mdt),
hai->hai_action, PFID(&hai->hai_fid));
break;
}
hca->hca_location = hai->hai_extent;
EXIT;
out_free:
MDT_HSM_FREE(hal, hal_size);
out_ucred:
mdt_exit_ucred(info);
out:
mdt_thread_info_fini(info);
return rc;
}
/**
* Change HSM state and archive number of a file.
*
* Archive number is changed iif the value is not 0.
* The new flagset that will be computed should result in a coherent state.
* This function checks that flags are compatible.
*
* This is MDS_HSM_STATE_SET RPC handler.
*/
int mdt_hsm_state_set(struct tgt_session_info *tsi)
{
struct mdt_thread_info *info = tsi2mdt_info(tsi);
struct mdt_object *obj = info->mti_object;
struct md_attr *ma = &info->mti_attr;
struct hsm_state_set *hss;
struct mdt_lock_handle *lh;
int rc;
__u64 flags;
ENTRY;
hss = req_capsule_client_get(info->mti_pill, &RMF_HSM_STATE_SET);
if (info->mti_body == NULL || obj == NULL || hss == NULL)
GOTO(out, rc = -EPROTO);
/* Only valid if client is remote */
rc = mdt_init_ucred(info, (struct mdt_body *)info->mti_body);
if (rc < 0)
GOTO(out, rc = err_serious(rc));
lh = &info->mti_lh[MDT_LH_CHILD];
mdt_lock_reg_init(lh, LCK_PW);
rc = mdt_object_lock(info, obj, lh, MDS_INODELOCK_LOOKUP |
MDS_INODELOCK_XATTR);
if (rc < 0)
GOTO(out_ucred, rc);
/* Detect out-of range masks */
if ((hss->hss_setmask | hss->hss_clearmask) & ~HSM_FLAGS_MASK) {
CDEBUG(D_HSM, "Incompatible masks provided (set "LPX64
", clear "LPX64") vs supported set (%#x).\n",
hss->hss_setmask, hss->hss_clearmask, HSM_FLAGS_MASK);
GOTO(out_unlock, rc = -EINVAL);
}
/* Non-root users are forbidden to set or clear flags which are
* NOT defined in HSM_USER_MASK. */
if (((hss->hss_setmask | hss->hss_clearmask) & ~HSM_USER_MASK) &&
!md_capable(mdt_ucred(info), CFS_CAP_SYS_ADMIN)) {
CDEBUG(D_HSM, "Incompatible masks provided (set "LPX64
", clear "LPX64") vs unprivileged set (%#x).\n",
hss->hss_setmask, hss->hss_clearmask, HSM_USER_MASK);
GOTO(out_unlock, rc = -EPERM);
}
/* Read current HSM info */
ma->ma_valid = 0;
ma->ma_need = MA_HSM;
rc = mdt_attr_get_complex(info, obj, ma);
if (rc)
GOTO(out_unlock, rc);
/* Change HSM flags depending on provided masks */
if (hss->hss_valid & HSS_SETMASK)
ma->ma_hsm.mh_flags |= hss->hss_setmask;
if (hss->hss_valid & HSS_CLEARMASK)
ma->ma_hsm.mh_flags &= ~hss->hss_clearmask;
/* Change archive_id if provided. */
if (hss->hss_valid & HSS_ARCHIVE_ID) {
if (!(ma->ma_hsm.mh_flags & HS_EXISTS)) {
CDEBUG(D_HSM, "Could not set an archive number for "
DFID "if HSM EXISTS flag is not set.\n",
PFID(&info->mti_body->mbo_fid1));
GOTO(out_unlock, rc);
}
/* Detect out-of range archive id */
if (hss->hss_archive_id > LL_HSM_MAX_ARCHIVE) {
CDEBUG(D_HSM, "archive id %u exceeds maximum %zu.\n",
hss->hss_archive_id, LL_HSM_MAX_ARCHIVE);
GOTO(out_unlock, rc = -EINVAL);
}
ma->ma_hsm.mh_arch_id = hss->hss_archive_id;
}
/* Check for inconsistant HSM flagset.
* DIRTY without EXISTS: no dirty if no archive was created.
* DIRTY and RELEASED: a dirty file could not be released.
* RELEASED without ARCHIVED: do not release a non-archived file.
* LOST without ARCHIVED: cannot lost a non-archived file.
*/
flags = ma->ma_hsm.mh_flags;
if ((flags & HS_DIRTY && !(flags & HS_EXISTS)) ||
(flags & HS_RELEASED && flags & HS_DIRTY) ||
(flags & HS_RELEASED && !(flags & HS_ARCHIVED)) ||
(flags & HS_LOST && !(flags & HS_ARCHIVED))) {
CDEBUG(D_HSM, "Incompatible flag change on "DFID
"flags="LPX64"\n",
PFID(&info->mti_body->mbo_fid1), flags);
GOTO(out_unlock, rc = -EINVAL);
}
/* Save the modified flags */
rc = mdt_hsm_attr_set(info, obj, &ma->ma_hsm);
if (rc)
GOTO(out_unlock, rc);
EXIT;
out_unlock:
mdt_object_unlock(info, obj, lh, 1);
out_ucred:
mdt_exit_ucred(info);
out:
mdt_thread_info_fini(info);
return rc;
}
int mdt_getxattr(struct mdt_thread_info *info)
{
struct ptlrpc_request *req = mdt_info_req(info);
struct mdt_body *reqbody;
struct mdt_body *repbody = NULL;
struct md_object *next;
struct lu_buf *buf;
int easize, rc;
u64 valid;
ENTRY;
LASSERT(info->mti_object != NULL);
LASSERT(lu_object_assert_exists(&info->mti_object->mot_obj));
CDEBUG(D_INODE, "getxattr "DFID"\n", PFID(&info->mti_body->mbo_fid1));
rc = req_check_sepol(info->mti_pill);
if (rc)
RETURN(err_serious(rc));
reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
if (reqbody == NULL)
RETURN(err_serious(-EFAULT));
rc = mdt_init_ucred(info, reqbody);
if (rc)
RETURN(err_serious(rc));
next = mdt_object_child(info->mti_object);
easize = mdt_getxattr_pack_reply(info);
if (easize == -ENODATA)
GOTO(out, rc = easize);
else if (easize < 0)
GOTO(out, rc = err_serious(easize));
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
LASSERT(repbody != NULL);
/* No need further getxattr. */
if (easize == 0 || reqbody->mbo_eadatasize == 0)
GOTO(out, rc = easize);
buf = &info->mti_buf;
buf->lb_buf = req_capsule_server_get(info->mti_pill, &RMF_EADATA);
buf->lb_len = easize;
valid = info->mti_body->mbo_valid & (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS);
if (valid == OBD_MD_FLXATTR) {
const char *xattr_name = req_capsule_client_get(info->mti_pill,
&RMF_NAME);
rc = mo_xattr_get(info->mti_env, next, buf, xattr_name);
if (rc < 0)
GOTO(out, rc);
rc = mdt_nodemap_map_acl(info, buf->lb_buf, rc, xattr_name,
NODEMAP_FS_TO_CLIENT);
} else if (valid == OBD_MD_FLXATTRLS) {
CDEBUG(D_INODE, "listxattr\n");
rc = mo_xattr_list(info->mti_env, next, buf);
if (rc < 0)
CDEBUG(D_INFO, "listxattr failed: %d\n", rc);
} else if (valid == OBD_MD_FLXATTRALL) {
rc = mdt_getxattr_all(info, reqbody, repbody,
buf, next);
} else
LBUG();
EXIT;
out:
if (rc >= 0) {
mdt_counter_incr(req, LPROC_MDT_GETXATTR);
/* LU-11109: Set OBD_MD_FLXATTR on success so that
* newer clients can distinguish between nonexistent
* xattrs and zero length values. */
repbody->mbo_valid |= OBD_MD_FLXATTR;
repbody->mbo_eadatasize = rc;
rc = 0;
}
mdt_exit_ucred(info);
return rc;
}
