int nfs4_op_setclientid_confirm(struct nfs_argop4 *op, compound_data_t *data,
struct nfs_resop4 *resp)
{
SETCLIENTID_CONFIRM4args * const arg_SETCLIENTID_CONFIRM4 =
&op->nfs_argop4_u.opsetclientid_confirm;
SETCLIENTID_CONFIRM4res * const res_SETCLIENTID_CONFIRM4 =
&resp->nfs_resop4_u.opsetclientid_confirm;
nfs_client_id_t *conf = NULL;
nfs_client_id_t *unconf = NULL;
nfs_client_record_t *client_record;
clientid4 clientid = 0;
char str_verifier[NFS4_VERIFIER_SIZE * 2 + 1];
const char *str_client_addr = "(unknown)";
/* The client name, for gratuitous logging */
char str_client[CLIENTNAME_BUFSIZE];
/* Display buffer for client name */
struct display_buffer dspbuf_client = {
sizeof(str_client), str_client, str_client};
/* The clientid4 broken down into fields */
char str_clientid4[DISPLAY_CLIENTID_SIZE];
/* Display buffer for clientid4 */
struct display_buffer dspbuf_clientid4 = {
sizeof(str_clientid4), str_clientid4, str_clientid4};
int rc;
/* Make sure str_client is always printable even
* if log level changes midstream.
*/
display_printf(&dspbuf_client, "(unknown)");
display_reset_buffer(&dspbuf_client);
resp->resop = NFS4_OP_SETCLIENTID_CONFIRM;
res_SETCLIENTID_CONFIRM4->status = NFS4_OK;
clientid = arg_SETCLIENTID_CONFIRM4->clientid;
display_clientid(&dspbuf_clientid4, clientid);
if (data->minorversion > 0) {
res_SETCLIENTID_CONFIRM4->status = NFS4ERR_NOTSUPP;
return res_SETCLIENTID_CONFIRM4->status;
}
if (op_ctx->client != NULL)
str_client_addr = op_ctx->client->hostaddr_str;
if (isDebug(COMPONENT_CLIENTID)) {
sprint_mem(str_verifier,
arg_SETCLIENTID_CONFIRM4->setclientid_confirm,
NFS4_VERIFIER_SIZE);
} else {
str_verifier[0] = '\0';
}
LogDebug(COMPONENT_CLIENTID,
"SETCLIENTID_CONFIRM client addr=%s clientid=%s setclientid_confirm=%s",
str_client_addr, str_clientid4, str_verifier);
/* First try to look up unconfirmed record */
rc = nfs_client_id_get_unconfirmed(clientid, &unconf);
if (rc == CLIENT_ID_SUCCESS) {
client_record = unconf->cid_client_record;
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, unconf);
LogFullDebug(COMPONENT_CLIENTID, "Found %s", str);
}
} else {
rc = nfs_client_id_get_confirmed(clientid, &conf);
if (rc != CLIENT_ID_SUCCESS) {
/* No record whatsoever of this clientid */
LogDebug(COMPONENT_CLIENTID,
"%s clientid = %s",
clientid_error_to_str(rc), str_clientid4);
res_SETCLIENTID_CONFIRM4->status =
clientid_error_to_nfsstat_no_expire(rc);
return res_SETCLIENTID_CONFIRM4->status;
}
client_record = conf->cid_client_record;
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, conf);
LogFullDebug(COMPONENT_CLIENTID, "Found %s", str);
}
}
PTHREAD_MUTEX_lock(&client_record->cr_mutex);
inc_client_record_ref(client_record);
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_record(&dspbuf, client_record);
LogFullDebug(COMPONENT_CLIENTID,
"Client Record %s cr_confirmed_rec=%p cr_unconfirmed_rec=%p",
str,
client_record->cr_confirmed_rec,
client_record->cr_unconfirmed_rec);
}
/* At this point one and only one of pconf and punconf is non-NULL */
if (unconf != NULL) {
/* First must match principal */
if (!nfs_compare_clientcred(&unconf->cid_credential,
&data->credential)
|| op_ctx->client == NULL
|| unconf->gsh_client == NULL
|| op_ctx->client != unconf->gsh_client) {
if (isDebug(COMPONENT_CLIENTID)) {
char *unconfirmed_addr = "(unknown)";
if (unconf->gsh_client != NULL)
unconfirmed_addr =
unconf->gsh_client->hostaddr_str;
LogDebug(COMPONENT_CLIENTID,
"Unconfirmed ClientId %s->'%s': Principals do not match... unconfirmed addr=%s Return NFS4ERR_CLID_INUSE",
str_clientid4,
str_client_addr,
unconfirmed_addr);
}
res_SETCLIENTID_CONFIRM4->status = NFS4ERR_CLID_INUSE;
dec_client_id_ref(unconf);
goto out;
} else if (unconf->cid_confirmed == CONFIRMED_CLIENT_ID &&
memcmp(unconf->cid_verifier,
arg_SETCLIENTID_CONFIRM4->setclientid_confirm,
NFS4_VERIFIER_SIZE) == 0) {
/* We must have raced with another
SETCLIENTID_CONFIRM */
if (isDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {
sizeof(str), str, str};
display_client_id_rec(&dspbuf, unconf);
LogDebug(COMPONENT_CLIENTID,
"Race against confirm for %s", str);
}
res_SETCLIENTID_CONFIRM4->status = NFS4_OK;
dec_client_id_ref(unconf);
goto out;
} else if (unconf->cid_confirmed != UNCONFIRMED_CLIENT_ID) {
/* We raced with another thread that dealt
* with this unconfirmed record. Release our
* reference, and pretend we didn't find a
* record.
*/
if (isDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {
sizeof(str), str, str};
display_client_id_rec(&dspbuf, unconf);
LogDebug(COMPONENT_CLIENTID,
"Race against expire for %s", str);
}
res_SETCLIENTID_CONFIRM4->status =
NFS4ERR_STALE_CLIENTID;
dec_client_id_ref(unconf);
goto out;
}
}
if (conf != NULL) {
if (isDebug(COMPONENT_CLIENTID) && conf != NULL)
display_clientid_name(&dspbuf_client, conf);
/* First must match principal */
if (!nfs_compare_clientcred(&conf->cid_credential,
&data->credential)
|| op_ctx->client == NULL
|| conf->gsh_client == NULL
|| op_ctx->client != conf->gsh_client) {
if (isDebug(COMPONENT_CLIENTID)) {
char *confirmed_addr = "(unknown)";
if (conf->gsh_client != NULL)
confirmed_addr =
conf->gsh_client->hostaddr_str;
LogDebug(COMPONENT_CLIENTID,
"Confirmed ClientId %s->%s addr=%s: Principals do not match... confirmed addr=%s Return NFS4ERR_CLID_INUSE",
str_clientid4,
str_client,
str_client_addr,
confirmed_addr);
}
res_SETCLIENTID_CONFIRM4->status = NFS4ERR_CLID_INUSE;
} else if (memcmp(
conf->cid_verifier,
arg_SETCLIENTID_CONFIRM4->setclientid_confirm,
NFS4_VERIFIER_SIZE) == 0) {
/* In this case, the record was confirmed and
* we have received a retry
*/
if (isDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {
sizeof(str), str, str};
display_client_id_rec(&dspbuf, conf);
LogDebug(COMPONENT_CLIENTID,
"Retry confirm for %s", str);
}
res_SETCLIENTID_CONFIRM4->status = NFS4_OK;
} else {
/* This is a case not covered... Return
* NFS4ERR_CLID_INUSE
*/
if (isDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {
sizeof(str), str, str};
char str_conf_verifier[NFS4_VERIFIER_SIZE * 2 +
1];
sprint_mem(str_conf_verifier,
conf->cid_verifier,
NFS4_VERIFIER_SIZE);
display_client_id_rec(&dspbuf, conf);
LogDebug(COMPONENT_CLIENTID,
"Confirm verifier=%s doesn't match verifier=%s for %s",
str_conf_verifier, str_verifier, str);
}
res_SETCLIENTID_CONFIRM4->status = NFS4ERR_CLID_INUSE;
}
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(conf);
goto out;
}
/* We don't need to do any further principal checks, we can't
* have a confirmed clientid record with a different principal
* than the unconfirmed record. Also, at this point, we have
* a matching unconfirmed clientid (punconf != NULL and pconf
* == NULL).
*/
/* Make sure we have a reference to the confirmed clientid
* record if any
*/
if (conf == NULL) {
conf = client_record->cr_confirmed_rec;
if (isDebug(COMPONENT_CLIENTID) && conf != NULL)
display_clientid_name(&dspbuf_client, conf);
/* Need a reference to the confirmed record for below */
if (conf != NULL)
inc_client_id_ref(conf);
}
if (conf != NULL && conf->cid_clientid != clientid) {
/* Old confirmed record - need to expire it */
if (isDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, conf);
LogDebug(COMPONENT_CLIENTID, "Expiring %s", str);
}
/* Expire clientid and release our reference. */
nfs_client_id_expire(conf, false);
dec_client_id_ref(conf);
conf = NULL;
}
if (conf != NULL) {
/* At this point we are updating the confirmed
* clientid. Update the confirmed record from the
* unconfirmed record.
*/
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, unconf);
LogFullDebug(COMPONENT_CLIENTID, "Updating from %s",
str);
}
/* Copy callback information into confirmed clientid record */
memcpy(conf->cid_cb.v40.cb_client_r_addr,
unconf->cid_cb.v40.cb_client_r_addr,
sizeof(conf->cid_cb.v40.cb_client_r_addr));
conf->cid_cb.v40.cb_addr = unconf->cid_cb.v40.cb_addr;
conf->cid_cb.v40.cb_program = unconf->cid_cb.v40.cb_program;
conf->cid_cb.v40.cb_callback_ident =
unconf->cid_cb.v40.cb_callback_ident;
nfs_rpc_destroy_chan(&conf->cid_cb.v40.cb_chan);
memcpy(conf->cid_verifier, unconf->cid_verifier,
NFS4_VERIFIER_SIZE);
/* unhash the unconfirmed clientid record */
remove_unconfirmed_client_id(unconf);
/* Release our reference to the unconfirmed entry */
dec_client_id_ref(unconf);
if (isDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, conf);
LogDebug(COMPONENT_CLIENTID, "Updated %s", str);
}
/* Check and update call back channel state */
if (nfs_param.nfsv4_param.allow_delegations &&
nfs_test_cb_chan(conf) != RPC_SUCCESS) {
set_cb_chan_down(conf, true);
LogCrit(COMPONENT_CLIENTID,
"setclid confirm: Callback channel is down");
} else {
set_cb_chan_down(conf, false);
LogDebug(COMPONENT_CLIENTID,
"setclid confirm: Callback channel is UP");
}
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(conf);
} else {
/* This is a new clientid */
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, unconf);
LogFullDebug(COMPONENT_CLIENTID,
"Confirming new %s",
str);
}
rc = nfs_client_id_confirm(unconf, COMPONENT_CLIENTID);
if (rc != CLIENT_ID_SUCCESS) {
res_SETCLIENTID_CONFIRM4->status =
clientid_error_to_nfsstat_no_expire(rc);
LogEvent(COMPONENT_CLIENTID,
"FAILED to confirm client");
/* Release our reference to the unconfirmed record */
dec_client_id_ref(unconf);
goto out;
}
/* check if the client can perform reclaims */
nfs4_chk_clid(unconf);
if (isDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, unconf);
LogDebug(COMPONENT_CLIENTID, "Confirmed %s", str);
}
/* Check and update call back channel state */
if (nfs_param.nfsv4_param.allow_delegations &&
nfs_test_cb_chan(unconf) != RPC_SUCCESS) {
set_cb_chan_down(unconf, true);
LogCrit(COMPONENT_CLIENTID,
"setclid confirm: Callback channel is down");
} else {
set_cb_chan_down(unconf, false);
LogDebug(COMPONENT_CLIENTID,
"setclid confirm: Callback channel is UP");
}
/* Release our reference to the now confirmed record */
dec_client_id_ref(unconf);
}
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_record(&dspbuf, client_record);
LogFullDebug(COMPONENT_CLIENTID,
"Client Record %s cr_confirmed_rec=%p cr_unconfirmed_rec=%p",
str,
client_record->cr_confirmed_rec,
client_record->cr_unconfirmed_rec);
}
/* Successful exit */
res_SETCLIENTID_CONFIRM4->status = NFS4_OK;
out:
PTHREAD_MUTEX_unlock(&client_record->cr_mutex);
/* Release our reference to the client record and return */
dec_client_record_ref(client_record);
return res_SETCLIENTID_CONFIRM4->status;
}
int nfs4_op_setclientid_confirm(struct nfs_argop4 *op,
compound_data_t * data, struct nfs_resop4 *resp)
{
nfs_client_id_t * nfs_clientid;
clientid4 clientid = 0;
nfs_worker_data_t *pworker = NULL;
pworker = (nfs_worker_data_t *) data->pclient->pworker;
#define arg_SETCLIENTID_CONFIRM4 op->nfs_argop4_u.opsetclientid_confirm
#define res_SETCLIENTID_CONFIRM4 resp->nfs_resop4_u.opsetclientid_confirm
resp->resop = NFS4_OP_SETCLIENTID_CONFIRM;
res_SETCLIENTID_CONFIRM4.status = NFS4_OK;
clientid = arg_SETCLIENTID_CONFIRM4.clientid;
LogDebug(COMPONENT_NFS_V4,
"SETCLIENTID_CONFIRM clientid = %"PRIx64, clientid);
/* LogDebug(COMPONENT_NFS_V4,
"SETCLIENTID_CONFIRM Verifier = #%s#",
arg_SETCLIENTID_CONFIRM4.setclientid_confirm ) ; */
/* Does this id already exists ? */
if(nfs_client_id_Get_Pointer(clientid, &nfs_clientid) == CLIENT_ID_SUCCESS)
{
/* The client id should not be confirmed */
P(nfs_clientid->clientid_mutex);
if(nfs_clientid->confirmed == CONFIRMED_CLIENT_ID)
{
LogDebug(COMPONENT_NFS_V4,
"SETCLIENTID_CONFIRM clientid is already confirmed");
/* Client id was already confirmed and is then in use, this is NFS4ERR_CLID_INUSE if not same client */
/* Check the verifier */
if(strncmp
(nfs_clientid->verifier, arg_SETCLIENTID_CONFIRM4.setclientid_confirm,
NFS4_VERIFIER_SIZE))
{
/* Bad verifier */
V(nfs_clientid->clientid_mutex);
res_SETCLIENTID_CONFIRM4.status = NFS4ERR_CLID_INUSE;
return res_SETCLIENTID_CONFIRM4.status;
}
}
else
{
if(nfs_clientid->confirmed == REBOOTED_CLIENT_ID)
{
LogDebug(COMPONENT_NFS_V4,
"SETCLIENTID_CONFIRM clientid = %"PRIx64", client was rebooted, getting ride of old state from previous client instance",
clientid);
}
/* Regular situation, set the client id confirmed and returns */
nfs_clientid->confirmed = CONFIRMED_CLIENT_ID;
/* add this clientID to stable storage */
nfs4_create_clid_name(nfs_clientid, data->reqp);
nfs4_add_clid(nfs_clientid);
/* Set the time for the client id */
nfs_clientid->last_renew = time(NULL);
/* check if the client can perform reclaims */
nfs4_chk_clid(nfs_clientid);
#if 0
/* Set the new value */
if(nfs_client_id_set(clientid, nfs_clientid, &pworker->clientid_pool) !=
CLIENT_ID_SUCCESS)
{
res_SETCLIENTID_CONFIRM4.status = NFS4ERR_SERVERFAULT;
return res_SETCLIENTID_CONFIRM4.status;
}
#endif
}
V(nfs_clientid->clientid_mutex);
}
else
{
/* The client id does not exist: stale client id */
res_SETCLIENTID_CONFIRM4.status = NFS4ERR_STALE_CLIENTID;
return res_SETCLIENTID_CONFIRM4.status;
}
/* Successful exit */
res_SETCLIENTID_CONFIRM4.status = NFS4_OK;
return res_SETCLIENTID_CONFIRM4.status;
} /* nfs4_op_setclientid_confirm */
int nfs4_op_create_session(struct nfs_argop4 *op, compound_data_t *data,
struct nfs_resop4 *resp)
{
/* Result of looking up the clientid in the confirmed ID
table */
nfs_client_id_t *conf = NULL; /* XXX these are not good names */
/* Result of looking up the clientid in the unconfirmed ID
table */
nfs_client_id_t *unconf = NULL;
/* The found clientid (either one of the preceding) */
nfs_client_id_t *found = NULL;
/* The found client record */
nfs_client_record_t *client_record;
/* The created session */
nfs41_session_t *nfs41_session = NULL;
/* Client supplied clientid */
clientid4 clientid = 0;
/* The client address as a string, for gratuitous logging */
const char *str_client_addr = "(unknown)";
/* The client name, for gratuitous logging */
char str_client[CLIENTNAME_BUFSIZE];
/* Display buffer for client name */
struct display_buffer dspbuf_client = {
sizeof(str_client), str_client, str_client
};
/* The clientid4 broken down into fields */
char str_clientid4[DISPLAY_CLIENTID_SIZE];
/* Display buffer for clientid4 */
struct display_buffer dspbuf_clientid4 = {
sizeof(str_clientid4), str_clientid4, str_clientid4
};
/* Return code from clientid calls */
int i, rc = 0;
/* Component for logging */
log_components_t component = COMPONENT_CLIENTID;
/* Abbreviated alias for arguments */
CREATE_SESSION4args * const arg_CREATE_SESSION4 =
&op->nfs_argop4_u.opcreate_session;
/* Abbreviated alias for response */
CREATE_SESSION4res * const res_CREATE_SESSION4 =
&resp->nfs_resop4_u.opcreate_session;
/* Abbreviated alias for successful response */
CREATE_SESSION4resok * const res_CREATE_SESSION4ok =
&res_CREATE_SESSION4->CREATE_SESSION4res_u.csr_resok4;
/* Make sure str_client is always printable even
* if log level changes midstream.
*/
display_printf(&dspbuf_client, "(unknown)");
display_reset_buffer(&dspbuf_client);
if (op_ctx->client != NULL)
str_client_addr = op_ctx->client->hostaddr_str;
if (isDebug(COMPONENT_SESSIONS))
component = COMPONENT_SESSIONS;
resp->resop = NFS4_OP_CREATE_SESSION;
res_CREATE_SESSION4->csr_status = NFS4_OK;
clientid = arg_CREATE_SESSION4->csa_clientid;
display_clientid(&dspbuf_clientid4, clientid);
if (data->minorversion == 0)
return res_CREATE_SESSION4->csr_status = NFS4ERR_INVAL;
LogDebug(component,
"CREATE_SESSION client addr=%s clientid=%s -------------------",
str_client_addr, str_clientid4);
/* First try to look up unconfirmed record */
rc = nfs_client_id_get_unconfirmed(clientid, &unconf);
if (rc == CLIENT_ID_SUCCESS) {
client_record = unconf->cid_client_record;
found = unconf;
} else {
rc = nfs_client_id_get_confirmed(clientid, &conf);
if (rc != CLIENT_ID_SUCCESS) {
/* No record whatsoever of this clientid */
LogDebug(component,
"%s clientid=%s",
clientid_error_to_str(rc), str_clientid4);
if (rc == CLIENT_ID_EXPIRED)
rc = CLIENT_ID_STALE;
res_CREATE_SESSION4->csr_status =
clientid_error_to_nfsstat_no_expire(rc);
return res_CREATE_SESSION4->csr_status;
}
client_record = conf->cid_client_record;
found = conf;
}
PTHREAD_MUTEX_lock(&client_record->cr_mutex);
inc_client_record_ref(client_record);
if (isFullDebug(component)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_record(&dspbuf, client_record);
LogFullDebug(component,
"Client Record %s cr_confirmed_rec=%p cr_unconfirmed_rec=%p",
str,
client_record->cr_confirmed_rec,
client_record->cr_unconfirmed_rec);
}
/* At this point one and only one of conf and unconf is
* non-NULL, and found also references the single clientid
* record that was found.
*/
LogDebug(component,
"CREATE_SESSION clientid=%s csa_sequence=%" PRIu32
" clientid_cs_seq=%" PRIu32 " data_oppos=%d data_use_drc=%d",
str_clientid4, arg_CREATE_SESSION4->csa_sequence,
found->cid_create_session_sequence, data->oppos,
data->use_drc);
if (isFullDebug(component)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, found);
LogFullDebug(component, "Found %s", str);
}
data->use_drc = false;
if (data->oppos == 0) {
/* Special case : the request is used without use of
* OP_SEQUENCE
*/
if ((arg_CREATE_SESSION4->csa_sequence + 1 ==
found->cid_create_session_sequence)
&& (found->cid_create_session_slot.cache_used)) {
data->use_drc = true;
data->cached_res =
&found->cid_create_session_slot.cached_result;
res_CREATE_SESSION4->csr_status = NFS4_OK;
dec_client_id_ref(found);
LogDebug(component,
"CREATE_SESSION replay=%p special case",
data->cached_res);
goto out;
} else if (arg_CREATE_SESSION4->csa_sequence !=
found->cid_create_session_sequence) {
res_CREATE_SESSION4->csr_status =
NFS4ERR_SEQ_MISORDERED;
dec_client_id_ref(found);
LogDebug(component,
"CREATE_SESSION returning NFS4ERR_SEQ_MISORDERED");
goto out;
}
}
if (unconf != NULL) {
/* First must match principal */
if (!nfs_compare_clientcred(&unconf->cid_credential,
&data->credential)) {
if (isDebug(component)) {
char *unconfirmed_addr = "(unknown)";
if (unconf->gsh_client != NULL)
unconfirmed_addr =
unconf->gsh_client->hostaddr_str;
LogDebug(component,
"Unconfirmed ClientId %s->'%s': Principals do not match... unconfirmed addr=%s Return NFS4ERR_CLID_INUSE",
str_clientid4,
str_client_addr,
unconfirmed_addr);
}
dec_client_id_ref(unconf);
res_CREATE_SESSION4->csr_status = NFS4ERR_CLID_INUSE;
goto out;
}
}
if (conf != NULL) {
if (isDebug(component) && conf != NULL)
display_clientid_name(&dspbuf_client, conf);
/* First must match principal */
if (!nfs_compare_clientcred(&conf->cid_credential,
&data->credential)) {
if (isDebug(component)) {
char *confirmed_addr = "(unknown)";
if (conf->gsh_client != NULL)
confirmed_addr =
conf->gsh_client->hostaddr_str;
LogDebug(component,
"Confirmed ClientId %s->%s addr=%s: Principals do not match... confirmed addr=%s Return NFS4ERR_CLID_INUSE",
str_clientid4, str_client,
str_client_addr, confirmed_addr);
}
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(conf);
res_CREATE_SESSION4->csr_status = NFS4ERR_CLID_INUSE;
goto out;
}
/* In this case, the record was confirmed proceed with
CREATE_SESSION */
}
/* We don't need to do any further principal checks, we can't
* have a confirmed clientid record with a different principal
* than the unconfirmed record.
*/
/* At this point, we need to try and create the session before
* we modify the confirmed and/or unconfirmed clientid
* records.
*/
/* Check flags value (test CSESS15) */
if (arg_CREATE_SESSION4->csa_flags &
~(CREATE_SESSION4_FLAG_PERSIST |
CREATE_SESSION4_FLAG_CONN_BACK_CHAN |
CREATE_SESSION4_FLAG_CONN_RDMA)) {
LogDebug(component,
"Invalid create session flags %" PRIu32,
arg_CREATE_SESSION4->csa_flags);
dec_client_id_ref(found);
res_CREATE_SESSION4->csr_status = NFS4ERR_INVAL;
goto out;
}
/* Record session related information at the right place */
nfs41_session = pool_alloc(nfs41_session_pool);
if (nfs41_session == NULL) {
LogCrit(component, "Could not allocate memory for a session");
dec_client_id_ref(found);
res_CREATE_SESSION4->csr_status = NFS4ERR_SERVERFAULT;
goto out;
}
nfs41_session->clientid = clientid;
nfs41_session->clientid_record = found;
nfs41_session->refcount = 2; /* sentinel ref + call path ref */
nfs41_session->fore_channel_attrs =
arg_CREATE_SESSION4->csa_fore_chan_attrs;
nfs41_session->back_channel_attrs =
arg_CREATE_SESSION4->csa_back_chan_attrs;
nfs41_session->xprt = data->req->rq_xprt;
nfs41_session->flags = false;
nfs41_session->cb_program = 0;
PTHREAD_MUTEX_init(&nfs41_session->cb_mutex, NULL);
PTHREAD_COND_init(&nfs41_session->cb_cond, NULL);
for (i = 0; i < NFS41_NB_SLOTS; i++)
PTHREAD_MUTEX_init(&nfs41_session->slots[i].lock, NULL);
/* Take reference to clientid record on behalf the session. */
inc_client_id_ref(found);
/* add to head of session list (encapsulate?) */
PTHREAD_MUTEX_lock(&found->cid_mutex);
glist_add(&found->cid_cb.v41.cb_session_list,
&nfs41_session->session_link);
PTHREAD_MUTEX_unlock(&found->cid_mutex);
/* Set ca_maxrequests */
nfs41_session->fore_channel_attrs.ca_maxrequests = NFS41_NB_SLOTS;
nfs41_Build_sessionid(&clientid, nfs41_session->session_id);
res_CREATE_SESSION4ok->csr_sequence = arg_CREATE_SESSION4->csa_sequence;
/* return the input for wanting of something better (will
* change in later versions)
*/
res_CREATE_SESSION4ok->csr_fore_chan_attrs =
nfs41_session->fore_channel_attrs;
res_CREATE_SESSION4ok->csr_back_chan_attrs =
nfs41_session->back_channel_attrs;
res_CREATE_SESSION4ok->csr_flags = 0;
memcpy(res_CREATE_SESSION4ok->csr_sessionid,
nfs41_session->session_id,
NFS4_SESSIONID_SIZE);
/* Create Session replay cache */
data->cached_res = &found->cid_create_session_slot.cached_result;
found->cid_create_session_slot.cache_used = true;
LogDebug(component, "CREATE_SESSION replay=%p", data->cached_res);
if (!nfs41_Session_Set(nfs41_session)) {
LogDebug(component, "Could not insert session into table");
/* Release the session resources by dropping our reference
* and the sentinel reference.
*/
dec_session_ref(nfs41_session);
dec_session_ref(nfs41_session);
/* Decrement our reference to the clientid record */
dec_client_id_ref(found);
/* Maybe a more precise status would be better */
res_CREATE_SESSION4->csr_status = NFS4ERR_SERVERFAULT;
goto out;
}
/* Make sure we have a reference to the confirmed clientid
record if any */
if (conf == NULL) {
conf = client_record->cr_confirmed_rec;
if (isDebug(component) && conf != NULL)
display_clientid_name(&dspbuf_client, conf);
/* Need a reference to the confirmed record for below */
if (conf != NULL)
inc_client_id_ref(conf);
}
if (conf != NULL && conf->cid_clientid != clientid) {
/* Old confirmed record - need to expire it */
if (isDebug(component)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, conf);
LogDebug(component, "Expiring %s", str);
}
/* Expire clientid and release our reference. */
nfs_client_id_expire(conf, false);
dec_client_id_ref(conf);
conf = NULL;
}
if (conf != NULL) {
/* At this point we are updating the confirmed
* clientid. Update the confirmed record from the
* unconfirmed record.
*/
display_clientid(&dspbuf_clientid4, conf->cid_clientid);
LogDebug(component,
"Updating clientid %s->%s cb_program=%u",
str_clientid4, str_client,
arg_CREATE_SESSION4->csa_cb_program);
if (unconf != NULL) {
/* unhash the unconfirmed clientid record */
remove_unconfirmed_client_id(unconf);
/* Release our reference to the unconfirmed entry */
dec_client_id_ref(unconf);
}
if (isDebug(component)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, conf);
LogDebug(component, "Updated %s", str);
}
} else {
/* This is a new clientid */
if (isFullDebug(component)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, unconf);
LogFullDebug(component, "Confirming new %s", str);
}
rc = nfs_client_id_confirm(unconf, component);
if (rc != CLIENT_ID_SUCCESS) {
res_CREATE_SESSION4->csr_status =
clientid_error_to_nfsstat_no_expire(rc);
/* Need to destroy the session */
if (!nfs41_Session_Del(nfs41_session->session_id))
LogDebug(component,
"Oops nfs41_Session_Del failed");
/* Release our reference to the unconfirmed record */
dec_client_id_ref(unconf);
goto out;
}
nfs4_chk_clid(unconf);
conf = unconf;
unconf = NULL;
if (isDebug(component)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, conf);
LogDebug(component, "Confirmed %s", str);
}
}
conf->cid_create_session_sequence++;
/* Bump the lease timer */
conf->cid_last_renew = time(NULL);
/* Release our reference to the confirmed record */
dec_client_id_ref(conf);
if (isFullDebug(component)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_record(&dspbuf, client_record);
LogFullDebug(component,
"Client Record %s cr_confirmed_rec=%p cr_unconfirmed_rec=%p",
str,
client_record->cr_confirmed_rec,
client_record->cr_unconfirmed_rec);
}
/* Handle the creation of the back channel, if the client
requested one. */
if (arg_CREATE_SESSION4->csa_flags &
CREATE_SESSION4_FLAG_CONN_BACK_CHAN) {
nfs41_session->cb_program = arg_CREATE_SESSION4->csa_cb_program;
if (nfs_rpc_create_chan_v41(
nfs41_session,
arg_CREATE_SESSION4->csa_sec_parms.csa_sec_parms_len,
arg_CREATE_SESSION4->csa_sec_parms.csa_sec_parms_val)
== 0) {
res_CREATE_SESSION4ok->csr_flags |=
CREATE_SESSION4_FLAG_CONN_BACK_CHAN;
}
}
if (isDebug(component)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_session(&dspbuf, nfs41_session);
LogDebug(component,
"success %s csa_flags 0x%X csr_flags 0x%X",
str, arg_CREATE_SESSION4->csa_flags,
res_CREATE_SESSION4ok->csr_flags);
}
/* Release our reference to the session */
dec_session_ref(nfs41_session);
/* Successful exit */
res_CREATE_SESSION4->csr_status = NFS4_OK;
out:
PTHREAD_MUTEX_unlock(&client_record->cr_mutex);
/* Release our reference to the client record and return */
dec_client_record_ref(client_record);
return res_CREATE_SESSION4->csr_status;
}
