static int llog_client_next_block(const struct lu_env *env,
struct llog_handle *loghandle,
int *cur_idx, int next_idx,
__u64 *cur_offset, void *buf, int len)
{
struct obd_import *imp;
struct ptlrpc_request *req = NULL;
struct llogd_body *body;
void *ptr;
int rc;
LLOG_CLIENT_ENTRY(loghandle->lgh_ctxt, imp);
req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK,
LUSTRE_LOG_VERSION,
LLOG_ORIGIN_HANDLE_NEXT_BLOCK);
if (req == NULL) {
rc = -ENOMEM;
goto err_exit;
}
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = loghandle->lgh_id;
body->lgd_ctxt_idx = loghandle->lgh_ctxt->loc_idx - 1;
body->lgd_llh_flags = loghandle->lgh_hdr->llh_flags;
body->lgd_index = next_idx;
body->lgd_saved_index = *cur_idx;
body->lgd_len = len;
body->lgd_cur_offset = *cur_offset;
req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER, len);
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc)
goto out;
body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL) {
rc = -EFAULT;
goto out;
}
/* The log records are swabbed as they are processed */
ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
if (ptr == NULL) {
rc = -EFAULT;
goto out;
}
*cur_idx = body->lgd_saved_index;
*cur_offset = body->lgd_cur_offset;
memcpy(buf, ptr, len);
out:
ptlrpc_req_finished(req);
err_exit:
LLOG_CLIENT_EXIT(loghandle->lgh_ctxt, imp);
return rc;
}
static int llog_client_read_header(const struct lu_env *env,
struct llog_handle *handle)
{
struct obd_import *imp;
struct ptlrpc_request *req = NULL;
struct llogd_body *body;
struct llog_log_hdr *hdr;
struct llog_rec_hdr *llh_hdr;
int rc;
LLOG_CLIENT_ENTRY(handle->lgh_ctxt, imp);
req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_READ_HEADER,
LUSTRE_LOG_VERSION,
LLOG_ORIGIN_HANDLE_READ_HEADER);
if (req == NULL) {
rc = -ENOMEM;
goto err_exit;
}
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = handle->lgh_id;
body->lgd_ctxt_idx = handle->lgh_ctxt->loc_idx - 1;
body->lgd_llh_flags = handle->lgh_hdr->llh_flags;
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc)
goto out;
hdr = req_capsule_server_get(&req->rq_pill, &RMF_LLOG_LOG_HDR);
if (hdr == NULL) {
rc = -EFAULT;
goto out;
}
memcpy(handle->lgh_hdr, hdr, sizeof(*hdr));
handle->lgh_last_idx = handle->lgh_hdr->llh_tail.lrt_index;
/* sanity checks */
llh_hdr = &handle->lgh_hdr->llh_hdr;
if (llh_hdr->lrh_type != LLOG_HDR_MAGIC) {
CERROR("bad log header magic: %#x (expecting %#x)\n",
llh_hdr->lrh_type, LLOG_HDR_MAGIC);
rc = -EIO;
} else if (llh_hdr->lrh_len != LLOG_CHUNK_SIZE) {
CERROR("incorrectly sized log header: %#x "
"(expecting %#x)\n",
llh_hdr->lrh_len, LLOG_CHUNK_SIZE);
CERROR("you may need to re-run lconf --write_conf.\n");
rc = -EIO;
}
out:
ptlrpc_req_finished(req);
err_exit:
LLOG_CLIENT_EXIT(handle->lgh_ctxt, imp);
return rc;
}
static int llog_client_prev_block(const struct lu_env *env,
struct llog_handle *loghandle,
int prev_idx, void *buf, int len)
{
struct obd_import *imp;
struct ptlrpc_request *req = NULL;
struct llogd_body *body;
void *ptr;
int rc;
LLOG_CLIENT_ENTRY(loghandle->lgh_ctxt, imp);
req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK,
LUSTRE_LOG_VERSION,
LLOG_ORIGIN_HANDLE_PREV_BLOCK);
if (!req) {
rc = -ENOMEM;
goto err_exit;
}
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = loghandle->lgh_id;
body->lgd_ctxt_idx = loghandle->lgh_ctxt->loc_idx - 1;
body->lgd_llh_flags = loghandle->lgh_hdr->llh_flags;
body->lgd_index = prev_idx;
body->lgd_len = len;
req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER, len);
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc)
goto out;
body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (!body) {
rc = -EFAULT;
goto out;
}
ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
if (!ptr) {
rc = -EFAULT;
goto out;
}
memcpy(buf, ptr, len);
out:
ptlrpc_req_finished(req);
err_exit:
LLOG_CLIENT_EXIT(loghandle->lgh_ctxt, imp);
return rc;
}
struct ptlrpc_request *
ptlrpc_prep_ping(struct obd_import *imp)
{
struct ptlrpc_request *req;
req = ptlrpc_request_alloc_pack(imp, &RQF_OBD_PING,
LUSTRE_OBD_VERSION, OBD_PING);
if (req) {
ptlrpc_request_set_replen(req);
req->rq_no_resend = req->rq_no_delay = 1;
}
return req;
}
int client_quota_check(struct obd_device *unused, struct obd_export *exp,
struct obd_quotactl *oqctl)
{
struct client_obd *cli = &exp->exp_obd->u.cli;
struct ptlrpc_request *req;
struct obd_quotactl *body;
const struct req_format *rf;
int ver, opc, rc;
ENTRY;
if (!strcmp(exp->exp_obd->obd_type->typ_name, LUSTRE_MDC_NAME)) {
rf = &RQF_MDS_QUOTACHECK;
ver = LUSTRE_MDS_VERSION;
opc = MDS_QUOTACHECK;
} else if (!strcmp(exp->exp_obd->obd_type->typ_name, LUSTRE_OSC_NAME)) {
rf = &RQF_OST_QUOTACHECK;
ver = LUSTRE_OST_VERSION;
opc = OST_QUOTACHECK;
} else {
RETURN(-EINVAL);
}
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), rf, ver, opc);
if (req == NULL)
RETURN(-ENOMEM);
body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
*body = *oqctl;
ptlrpc_request_set_replen(req);
/* the next poll will find -ENODATA, that means quotacheck is
* going on */
cli->cl_qchk_stat = -ENODATA;
rc = ptlrpc_queue_wait(req);
if (rc)
cli->cl_qchk_stat = rc;
ptlrpc_req_finished(req);
RETURN(rc);
}
static int target_quotacheck_callback(struct obd_export *exp,
struct obd_quotactl *oqctl)
{
struct ptlrpc_request *req;
struct obd_quotactl *body;
int rc;
ENTRY;
req = ptlrpc_request_alloc_pack(exp->exp_imp_reverse, &RQF_QC_CALLBACK,
LUSTRE_OBD_VERSION, OBD_QC_CALLBACK);
if (req == NULL)
RETURN(-ENOMEM);
body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
*body = *oqctl;
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
ptlrpc_req_finished(req);
RETURN(rc);
}
int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
struct obd_quotactl *oqctl)
{
struct ptlrpc_request *req;
struct obd_quotactl *oqc;
int rc;
ENTRY;
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
&RQF_OST_QUOTACTL, LUSTRE_OST_VERSION,
OST_QUOTACTL);
if (req == NULL)
RETURN(-ENOMEM);
oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
*oqc = *oqctl;
ptlrpc_request_set_replen(req);
ptlrpc_at_set_req_timeout(req);
req->rq_no_resend = 1;
rc = ptlrpc_queue_wait(req);
if (rc)
CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
if (req->rq_repmsg &&
(oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL))) {
*oqctl = *oqc;
} else if (!rc) {
CERROR ("Can't unpack obd_quotactl\n");
rc = -EPROTO;
}
ptlrpc_req_finished(req);
RETURN(rc);
}
int client_quota_adjust_qunit(struct obd_export *exp,
struct quota_adjust_qunit *oqaq,
struct lustre_quota_ctxt *qctxt,
struct ptlrpc_request_set *rqset)
{
struct ptlrpc_request *req;
struct quota_adjust_qunit *oqa;
int rc = 0;
ENTRY;
/* client don't support this kind of operation, abort it */
if (!(exp->exp_connect_flags & OBD_CONNECT_CHANGE_QS)) {
CDEBUG(D_QUOTA, "osc: %s don't support change qunit size\n",
exp->exp_obd->obd_name);
RETURN(rc);
}
if (strcmp(exp->exp_obd->obd_type->typ_name, LUSTRE_OSC_NAME))
RETURN(-EINVAL);
LASSERT(rqset);
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
&RQF_OST_QUOTA_ADJUST_QUNIT,
LUSTRE_OST_VERSION,
OST_QUOTA_ADJUST_QUNIT);
if (req == NULL)
RETURN(-ENOMEM);
oqa = req_capsule_client_get(&req->rq_pill, &RMF_QUOTA_ADJUST_QUNIT);
*oqa = *oqaq;
ptlrpc_request_set_replen(req);
ptlrpc_set_add_req(rqset, req);
RETURN (rc);
}
static int seq_client_rpc(struct lu_client_seq *seq,
struct lu_seq_range *output, __u32 opc,
const char *opcname)
{
struct obd_export *exp = seq->lcs_exp;
struct ptlrpc_request *req;
struct lu_seq_range *out, *in;
__u32 *op;
unsigned int debug_mask;
int rc;
ENTRY;
LASSERT(exp != NULL && !IS_ERR(exp));
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_SEQ_QUERY,
LUSTRE_MDS_VERSION, SEQ_QUERY);
if (req == NULL)
RETURN(-ENOMEM);
/* Init operation code */
op = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_OPC);
*op = opc;
/* Zero out input range, this is not recovery yet. */
in = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_RANGE);
lu_seq_range_init(in);
ptlrpc_request_set_replen(req);
in->lsr_index = seq->lcs_space.lsr_index;
if (seq->lcs_type == LUSTRE_SEQ_METADATA)
fld_range_set_mdt(in);
else
fld_range_set_ost(in);
if (opc == SEQ_ALLOC_SUPER) {
req->rq_request_portal = SEQ_CONTROLLER_PORTAL;
req->rq_reply_portal = MDC_REPLY_PORTAL;
/* During allocating super sequence for data object,
* the current thread might hold the export of MDT0(MDT0
* precreating objects on this OST), and it will send the
* request to MDT0 here, so we can not keep resending the
* request here, otherwise if MDT0 is failed(umounted),
* it can not release the export of MDT0 */
if (seq->lcs_type == LUSTRE_SEQ_DATA)
req->rq_no_delay = req->rq_no_resend = 1;
debug_mask = D_CONSOLE;
} else {
if (seq->lcs_type == LUSTRE_SEQ_METADATA) {
req->rq_reply_portal = MDC_REPLY_PORTAL;
req->rq_request_portal = SEQ_METADATA_PORTAL;
} else {
req->rq_reply_portal = OSC_REPLY_PORTAL;
req->rq_request_portal = SEQ_DATA_PORTAL;
}
debug_mask = D_INFO;
}
/* Allow seq client RPC during recovery time. */
req->rq_allow_replay = 1;
ptlrpc_at_set_req_timeout(req);
rc = ptlrpc_queue_wait(req);
if (rc)
GOTO(out_req, rc);
out = req_capsule_server_get(&req->rq_pill, &RMF_SEQ_RANGE);
*output = *out;
if (!lu_seq_range_is_sane(output)) {
CERROR("%s: Invalid range received from server: "
DRANGE"\n", seq->lcs_name, PRANGE(output));
GOTO(out_req, rc = -EINVAL);
}
if (lu_seq_range_is_exhausted(output)) {
CERROR("%s: Range received from server is exhausted: "
DRANGE"]\n", seq->lcs_name, PRANGE(output));
GOTO(out_req, rc = -EINVAL);
}
CDEBUG_LIMIT(debug_mask, "%s: Allocated %s-sequence "DRANGE"]\n",
seq->lcs_name, opcname, PRANGE(output));
EXIT;
out_req:
ptlrpc_req_finished(req);
return rc;
}
int gss_do_ctx_init_rpc(__user char *buffer, unsigned long count)
{
struct obd_import *imp;
struct ptlrpc_request *req;
struct lgssd_ioctl_param param;
struct obd_device *obd;
char obdname[64];
long lsize;
int rc;
if (count != sizeof(param)) {
CERROR("ioctl size %lu, expect %lu, please check lgss_keyring "
"version\n", count, (unsigned long) sizeof(param));
RETURN(-EINVAL);
}
if (copy_from_user(¶m, buffer, sizeof(param))) {
CERROR("failed copy data from lgssd\n");
RETURN(-EFAULT);
}
if (param.version != GSSD_INTERFACE_VERSION) {
CERROR("gssd interface version %d (expect %d)\n",
param.version, GSSD_INTERFACE_VERSION);
RETURN(-EINVAL);
}
/* take name */
if (strncpy_from_user(obdname, param.uuid, sizeof(obdname)) <= 0) {
CERROR("Invalid obdname pointer\n");
RETURN(-EFAULT);
}
obd = class_name2obd(obdname);
if (!obd) {
CERROR("no such obd %s\n", obdname);
RETURN(-EINVAL);
}
if (unlikely(!obd->obd_set_up)) {
CERROR("obd %s not setup\n", obdname);
RETURN(-EINVAL);
}
spin_lock(&obd->obd_dev_lock);
if (obd->obd_stopping) {
CERROR("obd %s has stopped\n", obdname);
spin_unlock(&obd->obd_dev_lock);
RETURN(-EINVAL);
}
if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) &&
strcmp(obd->obd_type->typ_name, LUSTRE_MGC_NAME)) {
CERROR("obd %s is not a client device\n", obdname);
spin_unlock(&obd->obd_dev_lock);
RETURN(-EINVAL);
}
spin_unlock(&obd->obd_dev_lock);
down_read(&obd->u.cli.cl_sem);
if (obd->u.cli.cl_import == NULL) {
CERROR("obd %s: import has gone\n", obd->obd_name);
up_read(&obd->u.cli.cl_sem);
RETURN(-EINVAL);
}
imp = class_import_get(obd->u.cli.cl_import);
up_read(&obd->u.cli.cl_sem);
if (imp->imp_deactive) {
CERROR("import has been deactivated\n");
class_import_put(imp);
RETURN(-EINVAL);
}
req = ptlrpc_request_alloc_pack(imp, &RQF_SEC_CTX, LUSTRE_OBD_VERSION,
SEC_CTX_INIT);
if (req == NULL) {
param.status = -ENOMEM;
goto out_copy;
}
if (req->rq_cli_ctx->cc_sec->ps_id != param.secid) {
CWARN("original secid %d, now has changed to %d, "
"cancel this negotiation\n", param.secid,
req->rq_cli_ctx->cc_sec->ps_id);
param.status = -EINVAL;
goto out_copy;
}
/* get token */
rc = ctx_init_pack_request(imp, req,
param.lustre_svc,
param.uid, param.gid,
param.send_token_size,
param.send_token);
if (rc) {
param.status = rc;
goto out_copy;
}
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc) {
/* If any _real_ denial be made, we expect server return
* -EACCES reply or return success but indicate gss error
* inside reply messsage. All other errors are treated as
* timeout, caller might try the negotiation repeatedly,
* leave recovery decisions to general ptlrpc layer.
*
* FIXME maybe some other error code shouldn't be treated
* as timeout. */
param.status = rc;
if (rc != -EACCES)
param.status = -ETIMEDOUT;
goto out_copy;
}
LASSERT(req->rq_repdata);
lsize = ctx_init_parse_reply(req->rq_repdata,
ptlrpc_rep_need_swab(req),
param.reply_buf, param.reply_buf_size);
if (lsize < 0) {
param.status = (int) lsize;
goto out_copy;
}
param.status = 0;
param.reply_length = lsize;
out_copy:
if (copy_to_user(buffer, ¶m, sizeof(param)))
rc = -EFAULT;
else
rc = 0;
class_import_put(imp);
ptlrpc_req_finished(req);
RETURN(rc);
}
static int seq_client_rpc(struct lu_client_seq *seq,
struct lu_seq_range *output, __u32 opc,
const char *opcname)
{
struct obd_export *exp = seq->lcs_exp;
struct ptlrpc_request *req;
struct lu_seq_range *out, *in;
__u32 *op;
int rc;
ENTRY;
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_SEQ_QUERY,
LUSTRE_MDS_VERSION, SEQ_QUERY);
if (req == NULL)
RETURN(-ENOMEM);
/* Init operation code */
op = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_OPC);
*op = opc;
/* Zero out input range, this is not recovery yet. */
in = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_RANGE);
range_init(in);
ptlrpc_request_set_replen(req);
if (seq->lcs_type == LUSTRE_SEQ_METADATA) {
req->rq_request_portal = SEQ_METADATA_PORTAL;
in->lsr_flags = LU_SEQ_RANGE_MDT;
} else {
LASSERTF(seq->lcs_type == LUSTRE_SEQ_DATA,
"unknown lcs_type %u\n", seq->lcs_type);
req->rq_request_portal = SEQ_DATA_PORTAL;
in->lsr_flags = LU_SEQ_RANGE_OST;
}
if (opc == SEQ_ALLOC_SUPER) {
/* Update index field of *in, it is required for
* FLD update on super sequence allocator node. */
in->lsr_index = seq->lcs_space.lsr_index;
req->rq_request_portal = SEQ_CONTROLLER_PORTAL;
} else {
LASSERTF(opc == SEQ_ALLOC_META,
"unknown opcode %u\n, opc", opc);
}
ptlrpc_at_set_req_timeout(req);
mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
rc = ptlrpc_queue_wait(req);
mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
if (rc)
GOTO(out_req, rc);
out = req_capsule_server_get(&req->rq_pill, &RMF_SEQ_RANGE);
*output = *out;
if (!range_is_sane(output)) {
CERROR("%s: Invalid range received from server: "
DRANGE"\n", seq->lcs_name, PRANGE(output));
GOTO(out_req, rc = -EINVAL);
}
if (range_is_exhausted(output)) {
CERROR("%s: Range received from server is exhausted: "
DRANGE"]\n", seq->lcs_name, PRANGE(output));
GOTO(out_req, rc = -EINVAL);
}
CDEBUG(D_INFO, "%s: Allocated %s-sequence "DRANGE"]\n",
seq->lcs_name, opcname, PRANGE(output));
EXIT;
out_req:
ptlrpc_req_finished(req);
return rc;
}
