int nfs41_op_exchange_id(struct nfs_argop4 *op,
compound_data_t * data, struct nfs_resop4 *resp)
{
char str_verifier[NFS4_VERIFIER_SIZE * 2 + 1];
char str_client[NFS4_OPAQUE_LIMIT * 2 + 1];
nfs_client_record_t * pclient_record;
nfs_client_id_t * pconf;
nfs_client_id_t * punconf;
int rc;
int len;
char * temp;
bool_t update;
const char * update_str;
log_components_t component = COMPONENT_CLIENTID;
#if 0 /** @todo: plante le client sous windows. Ai-je réellement besoin de cela ???? */
/* Check flags value (test EID4) */
if(arg_EXCHANGE_ID4.eia_flags & all_eia_flags != arg_EXCHANGE_ID4.eia_flags)
{
res_EXCHANGE_ID4.eir_status = NFS4ERR_INVAL;
return res_EXCHANGE_ID4.eir_status;
}
#endif
if(isDebug(COMPONENT_SESSIONS))
component = COMPONENT_SESSIONS;
#define arg_EXCHANGE_ID4 op->nfs_argop4_u.opexchange_id
#define res_EXCHANGE_ID4 resp->nfs_resop4_u.opexchange_id
#define res_EXCHANGE_ID4_ok resp->nfs_resop4_u.opexchange_id.EXCHANGE_ID4res_u.eir_resok4
resp->resop = NFS4_OP_EXCHANGE_ID;
update = (arg_EXCHANGE_ID4.eia_flags & EXCHGID4_FLAG_UPD_CONFIRMED_REC_A) != 0;
if(isDebug(component))
{
DisplayOpaqueValue(arg_EXCHANGE_ID4.eia_clientowner.co_ownerid.co_ownerid_val,
arg_EXCHANGE_ID4.eia_clientowner.co_ownerid.co_ownerid_len,
str_client);
sprint_mem(str_verifier,
arg_EXCHANGE_ID4.eia_clientowner.co_verifier,
NFS4_VERIFIER_SIZE);
update_str = update ? "UPDATE" : "NO UPDATE";
}
LogDebug(component,
"EXCHANGE_ID Client addr=%s id=%s verf=%s %s --------------------",
data->pworker->hostaddr_str,
str_client, str_verifier, update_str);
/* Do we already have one or more records for client id (x)? */
pclient_record = get_client_record(arg_EXCHANGE_ID4.eia_clientowner.co_ownerid.co_ownerid_val,
arg_EXCHANGE_ID4.eia_clientowner.co_ownerid.co_ownerid_len);
if(pclient_record == NULL)
{
/* Some major failure */
LogCrit(component,
"EXCHANGE_ID failed");
res_EXCHANGE_ID4.eir_status = NFS4ERR_SERVERFAULT;
return res_EXCHANGE_ID4.eir_status;
}
/*
* The following checks are based on RFC5661
*
* This attempts to implement the logic described in 18.35.4. IMPLEMENTATION
*/
P(pclient_record->cr_mutex);
if(isFullDebug(COMPONENT_CLIENTID))
{
char str[HASHTABLE_DISPLAY_STRLEN];
display_client_record(pclient_record, str);
LogFullDebug(COMPONENT_CLIENTID,
"Client Record %s cr_pconfirmed_id=%p cr_punconfirmed_id=%p",
str,
pclient_record->cr_pconfirmed_id,
pclient_record->cr_punconfirmed_id);
}
pconf = pclient_record->cr_pconfirmed_id;
if(pconf != NULL)
{
/* Need a reference to the confirmed record for below */
inc_client_id_ref(pconf);
}
if(pconf != NULL && !update)
{
/* EXCHGID4_FLAG_UPD_CONFIRMED_REC_A not set */
/** @todo FSF: old code ifdefed out nfs_compare_clientcred with _NFSV4_COMPARE_CRED_IN_EXCHANGE_ID */
if(!nfs_compare_clientcred(&pconf->cid_credential, &data->credential) ||
!cmp_sockaddr(&pconf->cid_client_addr,
&data->pworker->hostaddr,
IGNORE_PORT))
{
/** @todo FSF: should also check if there is no state */
P(pconf->cid_mutex);
if(valid_lease(pconf))
{
V(pconf->cid_mutex);
/* CASE 3, client collisions, old clientid is expired */
if(isDebug(COMPONENT_CLIENTID))
{
char str[HASHTABLE_DISPLAY_STRLEN];
display_client_id_rec(pconf, str);
LogDebug(COMPONENT_CLIENTID,
"Expiring %s",
str);
}
/* Expire clientid and release our reference. */
nfs_client_id_expire(pconf);
dec_client_id_ref(pconf);
pconf = NULL;
}
else
{
V(pconf->cid_mutex);
/* CASE 3, client collisions, old clientid is not expired */
if(isDebug(component))
{
char confirmed_addr[SOCK_NAME_MAX];
sprint_sockip(&pconf->cid_client_addr, confirmed_addr, sizeof(confirmed_addr));
LogDebug(component,
"Confirmed ClientId %"PRIx64"->'%s': Principals do not match... confirmed addr=%s Return NFS4ERR_CLID_INUSE",
pconf->cid_clientid, str_client, confirmed_addr);
}
res_EXCHANGE_ID4.eir_status = NFS4ERR_CLID_INUSE;
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(pconf);
goto out;
}
}
else if(memcmp(arg_EXCHANGE_ID4.eia_clientowner.co_verifier,
pconf->cid_incoming_verifier,
NFS4_VERIFIER_SIZE) == 0)
{
/* CASE 2, Non-Update on Existing Client ID */
/* Return what was last returned without changing any refcounts */
LogDebug(COMPONENT_CLIENTID,
"Non-update of confirmed ClientId %"PRIx64"->%s",
pconf->cid_clientid, str_client);
punconf = pconf;
goto return_ok;
}
else
{
/* CASE 5, client restart */
/** @todo FSF: expire old clientid? */
LogDebug(component,
"Restarted ClientId %"PRIx64"->%s",
pconf->cid_clientid, str_client);
}
}
else if(pconf != NULL)
{
/* EXCHGID4_FLAG_UPD_CONFIRMED_REC_A set */
if(memcmp(arg_EXCHANGE_ID4.eia_clientowner.co_verifier,
pconf->cid_incoming_verifier,
NFS4_VERIFIER_SIZE) == 0)
{
/** @todo FSF: old code ifdefed out nfs_compare_clientcred with _NFSV4_COMPARE_CRED_IN_EXCHANGE_ID */
if(!nfs_compare_clientcred(&pconf->cid_credential, &data->credential) ||
!cmp_sockaddr(&pconf->cid_client_addr,
&data->pworker->hostaddr,
IGNORE_PORT))
{
/* CASE 9, Update but wrong principal */
if(isDebug(component))
{
char confirmed_addr[SOCK_NAME_MAX];
sprint_sockip(&pconf->cid_client_addr, confirmed_addr, sizeof(confirmed_addr));
LogDebug(component,
"Confirmed ClientId %"PRIx64"->'%s': Principals do not match... confirmed addr=%s Return NFS4ERR_PERM",
pconf->cid_clientid, str_client, confirmed_addr);
}
res_EXCHANGE_ID4.eir_status = NFS4ERR_PERM;
}
else
{
/* CASE 6, Update */
/** @todo: this is not implemented, the things it updates aren't even tracked */
LogMajor(component,
"EXCHANGE_ID Update not supported");
res_EXCHANGE_ID4.eir_status = NFS4ERR_NOTSUPP;
}
}
else
{
/* CASE 8, Update but wrong verifier */
if(isDebug(component))
{
char str_old_verifier[NFS4_VERIFIER_SIZE * 2 + 1];
sprint_mem(str_old_verifier,
pconf->cid_incoming_verifier,
NFS4_VERIFIER_SIZE);
LogDebug(component,
"Confirmed clientid %"PRIx64"->'%s': Verifiers do not match... confirmed verifier=%s",
pconf->cid_clientid, str_client, str_old_verifier);
}
res_EXCHANGE_ID4.eir_status = NFS4ERR_NOT_SAME;
}
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(pconf);
goto out;
}
else if(pconf == NULL && update)
{
LogDebug(component,
"No confirmed clientid to update for %s",
str_client);
res_EXCHANGE_ID4.eir_status = NFS4ERR_NOENT;
goto out;
}
/* At this point, no matter what the case was above, we should remove any
* pre-existing unconfirmed record.
*/
punconf = pclient_record->cr_punconfirmed_id;
if(punconf != NULL)
{
/* CASE 4, replacement of unconfirmed record */
/* Delete the unconfirmed clientid record */
if(isDebug(COMPONENT_CLIENTID))
{
char str[HASHTABLE_DISPLAY_STRLEN];
display_client_id_rec(punconf, str);
LogDebug(COMPONENT_CLIENTID,
"Replacing %s",
str);
}
/* unhash the clientid record */
remove_unconfirmed_client_id(punconf);
}
/* Now we can proceed to build the new unconfirmed record. We have determined
* the clientid and setclientid_confirm values above.
*/
punconf = create_client_id(0,
pclient_record,
&data->pworker->hostaddr,
&data->credential);
if(punconf == NULL)
{
/* Error already logged, return */
res_EXCHANGE_ID4.eir_status = NFS4ERR_RESOURCE;
goto out;
}
memcpy(punconf->cid_incoming_verifier,
arg_EXCHANGE_ID4.eia_clientowner.co_verifier,
NFS4_VERIFIER_SIZE);
if(gethostname(punconf->cid_server_owner,
sizeof(punconf->cid_server_owner)) == -1)
{
/* Free the clientid record and return */
free_client_id(punconf);
res_EXCHANGE_ID4.eir_status = NFS4ERR_SERVERFAULT;
goto out;
}
snprintf(punconf->cid_server_scope,
sizeof(punconf->cid_server_scope),
"%s_NFS-Ganesha",
punconf->cid_server_owner);
rc = nfs_client_id_insert(punconf);
if(rc != CLIENT_ID_SUCCESS)
{
/* Record is already freed, return. */
res_EXCHANGE_ID4.eir_status = clientid_error_to_nfsstat(rc);
goto out;
}
return_ok:
/* Build the reply */
res_EXCHANGE_ID4_ok.eir_clientid = punconf->cid_clientid;
res_EXCHANGE_ID4_ok.eir_sequenceid = punconf->cid_create_session_sequence;
#if defined(_USE_FSALMDS) && defined(_USE_FSALDS)
res_EXCHANGE_ID4_ok.eir_flags = EXCHGID4_FLAG_USE_PNFS_MDS |
EXCHGID4_FLAG_USE_PNFS_DS |
EXCHGID4_FLAG_SUPP_MOVED_REFER;
#elif defined(_USE_FSALMDS)
res_EXCHANGE_ID4_ok.eir_flags = EXCHGID4_FLAG_USE_PNFS_MDS |
EXCHGID4_FLAG_SUPP_MOVED_REFER;
#elif defined(_USE_FSALDS)
res_EXCHANGE_ID4_ok.eir_flags = EXCHGID4_FLAG_USE_PNFS_DS |
EXCHGID4_FLAG_SUPP_MOVED_REFER;
#elif defined(_USE_DS)
res_EXCHANGE_ID4_ok.eir_flags = EXCHGID4_FLAG_USE_PNFS_MDS |
EXCHGID4_FLAG_USE_PNFS_DS |
EXCHGID4_FLAG_SUPP_MOVED_REFER;
#else
res_EXCHANGE_ID4_ok.eir_flags = EXCHGID4_FLAG_USE_NON_PNFS |
EXCHGID4_FLAG_SUPP_MOVED_REFER;
#endif
res_EXCHANGE_ID4_ok.eir_state_protect.spr_how = SP4_NONE;
len = strlen(punconf->cid_server_owner);
temp = gsh_malloc(len);
if(temp == NULL)
{
LogDebug(component,
"Could not allocate memory for so_major_id in response");
/** @todo FSF: not the best way to handle this but keeps from crashing */
len = 0;
}
else
memcpy(temp, punconf->cid_server_owner, len);
res_EXCHANGE_ID4_ok.eir_server_owner.so_major_id.so_major_id_len = len;
res_EXCHANGE_ID4_ok.eir_server_owner.so_major_id.so_major_id_val = temp;
res_EXCHANGE_ID4_ok.eir_server_owner.so_minor_id = 0;
len = strlen(punconf->cid_server_scope);
temp = gsh_malloc(len);
if(temp == NULL)
{
LogDebug(component,
"Could not allocate memory for eir_server_scope in response");
/** @todo FSF: not the best way to handle this but keeps from crashing */
len = 0;
}
else
memcpy(temp, punconf->cid_server_scope, len);
res_EXCHANGE_ID4_ok.eir_server_scope.eir_server_scope_len = len;
res_EXCHANGE_ID4_ok.eir_server_scope.eir_server_scope_val = temp;
res_EXCHANGE_ID4_ok.eir_server_impl_id.eir_server_impl_id_len = 0;
res_EXCHANGE_ID4_ok.eir_server_impl_id.eir_server_impl_id_val = NULL;
if(isDebug(COMPONENT_CLIENTID))
{
char str[HASHTABLE_DISPLAY_STRLEN];
sprint_mem(str_verifier,
arg_EXCHANGE_ID4.eia_clientowner.co_verifier,
NFS4_VERIFIER_SIZE);
display_client_id_rec(punconf, str);
LogDebug(COMPONENT_CLIENTID,
"EXCHANGE_ID reply Verifier=%s %s",
str_verifier, str);
}
res_EXCHANGE_ID4.eir_status = NFS4_OK;
out:
V(pclient_record->cr_mutex);
/* Release our reference to the client record */
dec_client_record_ref(pclient_record);
return res_EXCHANGE_ID4.eir_status;
} /* nfs41_op_exchange_id */
int nfs4_op_setclientid(struct nfs_argop4 *op, compound_data_t *data,
struct nfs_resop4 *resp)
{
SETCLIENTID4args * const arg_SETCLIENTID4 =
&op->nfs_argop4_u.opsetclientid;
SETCLIENTID4res * const res_SETCLIENTID4 =
&resp->nfs_resop4_u.opsetclientid;
clientaddr4 * const res_SETCLIENTID4_INUSE =
&resp->nfs_resop4_u.opsetclientid.SETCLIENTID4res_u.client_using;
char str_verifier[NFS4_VERIFIER_SIZE * 2 + 1];
char str_client[NFS4_OPAQUE_LIMIT * 2 + 1];
char str_client_addr[SOCK_NAME_MAX + 1];
nfs_client_record_t *client_record;
nfs_client_id_t *conf;
nfs_client_id_t *unconf;
clientid4 clientid;
verifier4 verifier;
sockaddr_t client_addr;
int rc;
resp->resop = NFS4_OP_SETCLIENTID;
if (data->minorversion > 0) {
res_SETCLIENTID4->status = NFS4ERR_NOTSUPP;
return res_SETCLIENTID4->status;
}
copy_xprt_addr(&client_addr, data->req->rq_xprt);
if (isDebug(COMPONENT_CLIENTID)) {
sprint_sockip(&client_addr, str_client_addr,
sizeof(str_client_addr));
DisplayOpaqueValue(arg_SETCLIENTID4->client.id.id_val,
arg_SETCLIENTID4->client.id.id_len,
str_client);
sprint_mem(str_verifier, arg_SETCLIENTID4->client.verifier,
NFS4_VERIFIER_SIZE);
}
LogDebug(COMPONENT_CLIENTID,
"SETCLIENTID Client addr=%s id=%s verf=%s callback={program=%u r_addr=%s r_netid=%s} ident=%u",
str_client_addr, str_client, str_verifier,
arg_SETCLIENTID4->callback.cb_program,
arg_SETCLIENTID4->callback.cb_location.r_addr,
arg_SETCLIENTID4->callback.cb_location.r_netid,
arg_SETCLIENTID4->callback_ident);
/* Do we already have one or more records for client id (x)? */
client_record = get_client_record(arg_SETCLIENTID4->client.id.id_val,
arg_SETCLIENTID4->client.id.id_len,
0,
0);
if (client_record == NULL) {
/* Some major failure */
LogCrit(COMPONENT_CLIENTID, "SETCLIENTID failed");
res_SETCLIENTID4->status = NFS4ERR_SERVERFAULT;
return res_SETCLIENTID4->status;
}
/* The following checks are based on RFC3530bis draft 16
*
* This attempts to implement the logic described in
* 15.35.5. IMPLEMENTATION Consider the major bullets as CASE
* 1, CASE 2, CASE 3, CASE 4, and CASE 5.
*/
pthread_mutex_lock(&client_record->cr_mutex);
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[HASHTABLE_DISPLAY_STRLEN];
display_client_record(client_record, str);
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);
}
conf = client_record->cr_confirmed_rec;
if (conf != NULL) {
/* Need a reference to the confirmed record for below */
inc_client_id_ref(conf);
if (!nfs_compare_clientcred(&conf->cid_credential,
&data->credential)
|| !cmp_sockaddr(&conf->cid_client_addr,
&client_addr,
true)) {
/* CASE 1:
*
* Confirmed record exists and not the same principal
*/
if (isDebug(COMPONENT_CLIENTID)) {
char confirmed_addr[SOCK_NAME_MAX + 1];
sprint_sockip(&conf->cid_client_addr,
confirmed_addr,
sizeof(confirmed_addr));
LogDebug(COMPONENT_CLIENTID,
"Confirmed ClientId %" PRIx64
"->'%s': Principals do not match... confirmed addr=%s Return NFS4ERR_CLID_INUSE",
conf->cid_clientid, str_client,
confirmed_addr);
}
res_SETCLIENTID4->status = NFS4ERR_CLID_INUSE;
res_SETCLIENTID4_INUSE->r_netid =
(char *)netid_nc_table[conf->cid_cb.v40.cb_addr.nc]
.netid;
res_SETCLIENTID4_INUSE->r_addr =
gsh_strdup(conf->cid_cb.v40.cb_client_r_addr);
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(conf);
goto out;
}
/* Check if confirmed record is for (v, x, c, l, s) */
if (memcmp
(arg_SETCLIENTID4->client.verifier,
conf->cid_incoming_verifier, NFS4_VERIFIER_SIZE) == 0) {
/* CASE 2:
*
* A confirmed record exists for this long
* form client id and verifier.
*
* Consider this to be a possible update of
* the call-back information.
*
* Remove any pre-existing unconfirmed record
* for (v, x, c).
*
* Return the same short form client id (c),
* but a new setclientid_confirm verifier (t).
*/
LogFullDebug(COMPONENT_CLIENTID,
"Update ClientId %" PRIx64 "->%s",
conf->cid_clientid, str_client);
clientid = conf->cid_clientid;
new_clientid_verifier(verifier);
} else {
/* Must be CASE 3 or CASE 4
*
* Confirmed record is for (u, x, c, l, s).
*
* These are actually the same, doesn't really
* matter if an unconfirmed record exists or
* not. Any existing unconfirmed record will
* be removed and a new unconfirmed record
* added.
*
* Return a new short form clientid (d) and a
* new setclientid_confirm verifier (t). (Note
* the spec calls the values e and r for CASE
* 4).
*/
LogFullDebug(COMPONENT_CLIENTID,
"Replace ClientId %" PRIx64 "->%s",
conf->cid_clientid, str_client);
clientid = new_clientid();
new_clientid_verifier(verifier);
}
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(conf);
} else {
/* CASE 5:
*
*
* Remove any existing unconfirmed record.
*
* Return a new short form clientid (d) and a new
* setclientid_confirm verifier (t).
*/
LogFullDebug(COMPONENT_CLIENTID, "New client");
clientid = new_clientid();
new_clientid_verifier(verifier);
}
/* At this point, no matter what the case was above, we should
* remove any pre-existing unconfirmed record.
*/
unconf = client_record->cr_unconfirmed_rec;
if (unconf != NULL) {
/* Delete the unconfirmed clientid record. Because we
* have the cr_mutex, we have won any race to deal
* with this clientid record (whether we raced with a
* SETCLIENTID_CONFIRM or the reaper thread (if either
* of those operations had won the race,
* cr_punconfirmed_id would have been NULL).
*/
if (isDebug(COMPONENT_CLIENTID)) {
char str[HASHTABLE_DISPLAY_STRLEN];
display_client_id_rec(unconf, str);
LogDebug(COMPONENT_CLIENTID, "Replacing %s", str);
}
/* unhash the clientid record */
remove_unconfirmed_client_id(unconf);
unconf = NULL;
}
/* Now we can proceed to build the new unconfirmed record. We
* have determined the clientid and setclientid_confirm values
* above.
*/
unconf = create_client_id(clientid,
client_record,
&client_addr,
&data->credential,
0);
if (unconf == NULL) {
/* Error already logged, return */
res_SETCLIENTID4->status = NFS4ERR_RESOURCE;
goto out;
}
if (strmaxcpy(unconf->cid_cb.v40.cb_client_r_addr,
arg_SETCLIENTID4->callback.cb_location.r_addr,
sizeof(unconf->cid_cb.v40.cb_client_r_addr)) == -1) {
LogCrit(COMPONENT_CLIENTID, "Callback r_addr %s too long",
arg_SETCLIENTID4->callback.cb_location.r_addr);
res_SETCLIENTID4->status = NFS4ERR_INVAL;
goto out;
}
nfs_set_client_location(unconf,
&arg_SETCLIENTID4->callback.cb_location);
memcpy(unconf->cid_incoming_verifier,
arg_SETCLIENTID4->client.verifier,
NFS4_VERIFIER_SIZE);
memcpy(unconf->cid_verifier, verifier, sizeof(NFS4_write_verifier));
unconf->cid_cb.v40.cb_program = arg_SETCLIENTID4->callback.cb_program;
unconf->cid_cb.v40.cb_callback_ident = arg_SETCLIENTID4->callback_ident;
rc = nfs_client_id_insert(unconf);
if (rc != CLIENT_ID_SUCCESS) {
/* Record is already freed, return. */
res_SETCLIENTID4->status = clientid_error_to_nfsstat(rc);
goto out;
}
if (isDebug(COMPONENT_CLIENTID)) {
char str[HASHTABLE_DISPLAY_STRLEN];
sprint_mem(str_verifier, verifier, NFS4_VERIFIER_SIZE);
display_client_id_rec(unconf, str);
LogDebug(COMPONENT_CLIENTID, "SETCLIENTID reply Verifier=%s %s",
str_verifier, str);
}
res_SETCLIENTID4->status = NFS4_OK;
res_SETCLIENTID4->SETCLIENTID4res_u.resok4.clientid = clientid;
memcpy(res_SETCLIENTID4->SETCLIENTID4res_u.resok4.setclientid_confirm,
&verifier, NFS4_VERIFIER_SIZE);
out:
pthread_mutex_unlock(&client_record->cr_mutex);
/* Release our reference to the client record */
dec_client_record_ref(client_record);
return res_SETCLIENTID4->status;
}
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_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;
}
int nfs4_op_exchange_id(struct nfs_argop4 *op, compound_data_t *data,
struct nfs_resop4 *resp)
{
nfs_client_record_t *client_record;
nfs_client_id_t *conf;
nfs_client_id_t *unconf;
int rc;
int len;
char *temp;
bool update;
EXCHANGE_ID4args * const arg_EXCHANGE_ID4 =
&op->nfs_argop4_u.opexchange_id;
EXCHANGE_ID4res * const res_EXCHANGE_ID4 =
&resp->nfs_resop4_u.opexchange_id;
EXCHANGE_ID4resok * const res_EXCHANGE_ID4_ok =
(&resp->nfs_resop4_u.opexchange_id.EXCHANGE_ID4res_u.eir_resok4);
uint32_t pnfs_flags;
in_addr_t server_addr = 0;
resp->resop = NFS4_OP_EXCHANGE_ID;
if (data->minorversion == 0)
return res_EXCHANGE_ID4->eir_status = NFS4ERR_INVAL;
if ((arg_EXCHANGE_ID4->
eia_flags & ~(EXCHGID4_FLAG_SUPP_MOVED_REFER |
EXCHGID4_FLAG_SUPP_MOVED_MIGR |
EXCHGID4_FLAG_BIND_PRINC_STATEID |
EXCHGID4_FLAG_USE_NON_PNFS |
EXCHGID4_FLAG_USE_PNFS_MDS |
EXCHGID4_FLAG_USE_PNFS_DS |
EXCHGID4_FLAG_UPD_CONFIRMED_REC_A |
EXCHGID4_FLAG_CONFIRMED_R)) != 0)
return res_EXCHANGE_ID4->eir_status = NFS4ERR_INVAL;
/* If client did not ask for pNFS related server roles than just set
server roles */
pnfs_flags = arg_EXCHANGE_ID4->eia_flags & EXCHGID4_FLAG_MASK_PNFS;
if (pnfs_flags == 0) {
if (nfs_param.nfsv4_param.pnfs_mds)
pnfs_flags |= EXCHGID4_FLAG_USE_PNFS_MDS;
if (nfs_param.nfsv4_param.pnfs_ds)
pnfs_flags |= EXCHGID4_FLAG_USE_PNFS_DS;
if (pnfs_flags == 0)
pnfs_flags |= EXCHGID4_FLAG_USE_NON_PNFS;
}
/* If client did ask for pNFS related server roles than try to match the
server roles to the client request. */
else {
if ((arg_EXCHANGE_ID4->eia_flags & EXCHGID4_FLAG_USE_PNFS_MDS)
&& (nfs_param.nfsv4_param.pnfs_mds))
pnfs_flags |= EXCHGID4_FLAG_USE_PNFS_MDS;
if ((arg_EXCHANGE_ID4->eia_flags & EXCHGID4_FLAG_USE_PNFS_DS)
&& (nfs_param.nfsv4_param.pnfs_ds))
pnfs_flags |= EXCHGID4_FLAG_USE_PNFS_DS;
if (pnfs_flags == 0)
pnfs_flags |= EXCHGID4_FLAG_USE_NON_PNFS;
}
LogDebug(COMPONENT_CLIENTID,
"EXCHANGE_ID pnfs_flags 0x%08x eia_flags 0x%08x",
pnfs_flags, arg_EXCHANGE_ID4->eia_flags);
update = (arg_EXCHANGE_ID4->eia_flags &
EXCHGID4_FLAG_UPD_CONFIRMED_REC_A) != 0;
server_addr = get_raddr(data->req->rq_xprt);
/* Do we already have one or more records for client id (x)? */
client_record =
get_client_record(arg_EXCHANGE_ID4->eia_clientowner.co_ownerid.
co_ownerid_val,
arg_EXCHANGE_ID4->eia_clientowner.co_ownerid.
co_ownerid_len,
pnfs_flags,
server_addr);
if (client_record == NULL) {
/* Some major failure */
LogCrit(COMPONENT_CLIENTID, "EXCHANGE_ID failed");
res_EXCHANGE_ID4->eir_status = NFS4ERR_SERVERFAULT;
return res_EXCHANGE_ID4->eir_status;
}
/*
* The following checks are based on RFC5661
*
* This attempts to implement the logic described in
* 18.35.4. IMPLEMENTATION
*/
PTHREAD_MUTEX_lock(&client_record->cr_mutex);
conf = client_record->cr_confirmed_rec;
if (conf != NULL) {
/* Need a reference to the confirmed record for below */
inc_client_id_ref(conf);
}
if (conf != NULL && !update) {
/* EXCHGID4_FLAG_UPD_CONFIRMED_REC_A not set
*
* Compare the client credentials, but don't compare
* the client address. Doing so interferes with
* trunking and the ability of a client to reconnect
* after being assigned a new address.
*/
if (!nfs_compare_clientcred(&conf->cid_credential,
&data->credential)) {
PTHREAD_MUTEX_lock(&conf->cid_mutex);
if (!valid_lease(conf) || !client_id_has_state(conf)) {
PTHREAD_MUTEX_unlock(&conf->cid_mutex);
/* CASE 3, client collisions, old
* clientid is expired
*
* Expire clientid and release our reference.
*/
nfs_client_id_expire(conf, false);
dec_client_id_ref(conf);
conf = NULL;
} else {
PTHREAD_MUTEX_unlock(&conf->cid_mutex);
/* CASE 3, client collisions, old
* clientid is not expired
*/
res_EXCHANGE_ID4->eir_status =
NFS4ERR_CLID_INUSE;
/* Release our reference to the
* confirmed clientid.
*/
dec_client_id_ref(conf);
goto out;
}
} else if (memcmp(arg_EXCHANGE_ID4->eia_clientowner.co_verifier,
conf->cid_incoming_verifier,
NFS4_VERIFIER_SIZE) == 0) {
/* CASE 2, Non-Update on Existing Client ID
*
* Return what was last returned without
* changing any refcounts
*/
unconf = conf;
res_EXCHANGE_ID4_ok->eir_flags |=
EXCHGID4_FLAG_CONFIRMED_R;
goto return_ok;
} else {
/* CASE 5, client restart */
/** @todo FSF: expire old clientid? */
}
} else if (conf != NULL) {
/* EXCHGID4_FLAG_UPD_CONFIRMED_REC_A set */
if (memcmp(arg_EXCHANGE_ID4->eia_clientowner.co_verifier,
conf->cid_incoming_verifier,
NFS4_VERIFIER_SIZE) == 0) {
if (!nfs_compare_clientcred(&conf->cid_credential,
&data->credential)
|| op_ctx->client == NULL
|| conf->gsh_client == NULL
|| op_ctx->client != conf->gsh_client) {
/* CASE 9, Update but wrong principal */
res_EXCHANGE_ID4->eir_status = NFS4ERR_PERM;
} else {
/* CASE 6, Update */
/** @todo: this is not implemented,
the things it updates aren't even
tracked */
LogMajor(COMPONENT_CLIENTID,
"EXCHANGE_ID Update not supported");
res_EXCHANGE_ID4->eir_status = NFS4ERR_NOTSUPP;
}
} else {
/* CASE 8, Update but wrong verifier */
res_EXCHANGE_ID4->eir_status = NFS4ERR_NOT_SAME;
}
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(conf);
goto out;
} else if (conf == NULL && update) {
res_EXCHANGE_ID4->eir_status = NFS4ERR_NOENT;
goto out;
}
/* At this point, no matter what the case was above, we should
* remove any pre-existing unconfirmed record.
*/
unconf = client_record->cr_unconfirmed_rec;
if (unconf != NULL) {
/* CASE 4, replacement of unconfirmed record
*
* Delete the unconfirmed clientid record
* unhash the clientid record
*/
remove_unconfirmed_client_id(unconf);
}
/* Now we can proceed to build the new unconfirmed record. We
* have determined the clientid and setclientid_confirm values
* above.
*/
unconf = create_client_id(0,
client_record,
&data->credential,
data->minorversion);
if (unconf == NULL) {
/* Error already logged, return */
res_EXCHANGE_ID4->eir_status = NFS4ERR_RESOURCE;
goto out;
}
unconf->cid_create_session_sequence = 1;
glist_init(&unconf->cid_cb.v41.cb_session_list);
memcpy(unconf->cid_incoming_verifier,
arg_EXCHANGE_ID4->eia_clientowner.co_verifier,
NFS4_VERIFIER_SIZE);
if (gethostname(unconf->cid_server_owner,
sizeof(unconf->cid_server_owner)) == -1) {
/* Free the clientid record and return */
free_client_id(unconf);
res_EXCHANGE_ID4->eir_status = NFS4ERR_SERVERFAULT;
goto out;
}
snprintf(unconf->cid_server_scope,
sizeof(unconf->cid_server_scope),
"%s_NFS-Ganesha",
unconf->cid_server_owner);
LogDebug(COMPONENT_CLIENTID, "Serving IP %s", unconf->cid_server_scope);
rc = nfs_client_id_insert(unconf);
if (rc != CLIENT_ID_SUCCESS) {
/* Record is already freed, return. */
res_EXCHANGE_ID4->eir_status = clientid_error_to_nfsstat(rc);
goto out;
}
return_ok:
/* Build the reply */
res_EXCHANGE_ID4_ok->eir_clientid = unconf->cid_clientid;
res_EXCHANGE_ID4_ok->eir_sequenceid =
unconf->cid_create_session_sequence;
res_EXCHANGE_ID4_ok->eir_flags |= client_record->cr_pnfs_flags;
res_EXCHANGE_ID4_ok->eir_flags |= EXCHGID4_FLAG_SUPP_MOVED_REFER;
res_EXCHANGE_ID4_ok->eir_state_protect.spr_how = SP4_NONE;
len = strlen(unconf->cid_server_owner);
temp = gsh_malloc(len);
if (temp == NULL) {
/** @todo FSF: not the best way to handle this but
keeps from crashing */
len = 0;
} else
memcpy(temp, unconf->cid_server_owner, len);
res_EXCHANGE_ID4_ok->eir_server_owner.so_major_id.so_major_id_len = len;
res_EXCHANGE_ID4_ok->eir_server_owner.so_major_id.so_major_id_val =
temp;
res_EXCHANGE_ID4_ok->eir_server_owner.so_minor_id = 0;
len = strlen(unconf->cid_server_scope);
temp = gsh_malloc(len);
if (temp == NULL) {
/** @todo FSF: not the best way to handle this but
keeps from crashing */
len = 0;
} else
memcpy(temp, unconf->cid_server_scope, len);
res_EXCHANGE_ID4_ok->eir_server_scope.eir_server_scope_len = len;
res_EXCHANGE_ID4_ok->eir_server_scope.eir_server_scope_val = temp;
res_EXCHANGE_ID4_ok->eir_server_impl_id.eir_server_impl_id_len = 0;
res_EXCHANGE_ID4_ok->eir_server_impl_id.eir_server_impl_id_val = NULL;
res_EXCHANGE_ID4->eir_status = NFS4_OK;
out:
PTHREAD_MUTEX_unlock(&client_record->cr_mutex);
/* Release our reference to the client record */
dec_client_record_ref(client_record);
return res_EXCHANGE_ID4->eir_status;
}
int nfs4_op_destroy_clientid(struct nfs_argop4 *op, compound_data_t *data,
struct nfs_resop4 *resp)
{
DESTROY_CLIENTID4args * const arg_DESTROY_CLIENTID4 =
&op->nfs_argop4_u.opdestroy_clientid;
DESTROY_CLIENTID4res * const res_DESTROY_CLIENTID4 =
&resp->nfs_resop4_u.opdestroy_clientid;
nfs_client_record_t *client_record = NULL;
nfs_client_id_t *conf = NULL, *unconf = NULL, *found = NULL;
clientid4 clientid;
int rc;
resp->resop = NFS4_OP_DESTROY_CLIENTID;
clientid = arg_DESTROY_CLIENTID4->dca_clientid;
if (isDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_clientid(&dspbuf, clientid);
LogDebug(COMPONENT_CLIENTID,
"DESTROY_CLIENTID clientid=%s",
str);
}
res_DESTROY_CLIENTID4->dcr_status = NFS4_OK;
/* First try to look up confirmed record */
rc = nfs_client_id_get_confirmed(clientid, &conf);
if (rc == CLIENT_ID_SUCCESS) {
client_record = conf->cid_client_record;
found = conf;
} else {
/* fall back to unconfirmed */
rc = nfs_client_id_get_unconfirmed(clientid, &unconf);
if (rc == CLIENT_ID_SUCCESS) {
client_record = unconf->cid_client_record;
found = unconf;
}
/* handle the perverse case of a clientid being confirmed
* in the above interval */
rc = nfs_client_id_get_confirmed(clientid, &conf);
if (rc == CLIENT_ID_SUCCESS) {
if (found != NULL)
dec_client_id_ref(found);
client_record = conf->cid_client_record;
found = conf;
}
}
/* ref +1 */
if (client_record == NULL) {
/* Fine. We're done. */
res_DESTROY_CLIENTID4->dcr_status = NFS4ERR_STALE_CLIENTID;
goto out;
}
(void) inc_client_record_ref(client_record);
PTHREAD_MUTEX_lock(&client_record->cr_mutex);
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN];
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);
}
/* per Frank, we must check the confirmed and unconfirmed
* state of client_record again now that we hold cr_mutex
*/
conf = client_record->cr_confirmed_rec;
unconf = client_record->cr_unconfirmed_rec;
if ((!conf) && (!unconf)) {
/* We raced a thread destroying clientid, and lost.
* We're done. */
goto cleanup;
}
if (conf) {
/* We MUST NOT destroy a clientid that has nfsv41 sessions or
* state. Since the minorversion is 4.1 or higher, this is
* equivalent to a session check.
*/
PTHREAD_MUTEX_lock(&conf->cid_mutex);
if (!glist_empty(&conf->cid_cb.v41.cb_session_list)) {
res_DESTROY_CLIENTID4->dcr_status =
NFS4ERR_CLIENTID_BUSY;
PTHREAD_MUTEX_unlock(&conf->cid_mutex);
goto cleanup;
}
PTHREAD_MUTEX_unlock(&conf->cid_mutex);
/* Delete the confirmed clientid record. Because we
* have the cr_mutex, we have won any race to deal
* with this clientid record.
*/
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, conf);
LogDebug(COMPONENT_CLIENTID,
"Removing confirmed clientid %s", str);
}
/* unhash the clientid record */
(void)remove_confirmed_client_id(conf);
}
if (unconf) {
/* Delete the unconfirmed clientid record. Because we
* have the cr_mutex, we have won any race to deal
* with this clientid record.
*/
if (isFullDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN];
struct display_buffer dspbuf = {sizeof(str), str, str};
display_client_id_rec(&dspbuf, unconf);
LogDebug(COMPONENT_CLIENTID,
"Removing unconfirmed clientid %s", str);
}
/* unhash the clientid record */
(void)remove_unconfirmed_client_id(unconf);
}
cleanup:
PTHREAD_MUTEX_unlock(&client_record->cr_mutex);
dec_client_record_ref(client_record); /* ref +0 */
if (found != NULL)
dec_client_id_ref(found);
out:
return res_DESTROY_CLIENTID4->dcr_status;
}
int nfs4_op_setclientid(struct nfs_argop4 *op, compound_data_t *data,
struct nfs_resop4 *resp)
{
SETCLIENTID4args * const arg_SETCLIENTID4 =
&op->nfs_argop4_u.opsetclientid;
SETCLIENTID4res * const res_SETCLIENTID4 =
&resp->nfs_resop4_u.opsetclientid;
clientaddr4 * const res_SETCLIENTID4_INUSE =
&resp->nfs_resop4_u.opsetclientid.SETCLIENTID4res_u.client_using;
char str_verifier[NFS4_VERIFIER_SIZE * 2 + 1];
struct display_buffer dspbuf_verifier = {
sizeof(str_verifier), str_verifier, str_verifier};
char str_client[NFS4_OPAQUE_LIMIT * 2 + 1];
struct display_buffer dspbuf_client = {
sizeof(str_client), str_client, str_client};
const char *str_client_addr = "(unknown)";
/* 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};
nfs_client_record_t *client_record;
nfs_client_id_t *conf;
nfs_client_id_t *unconf;
clientid4 clientid;
verifier4 verifier;
int rc;
resp->resop = NFS4_OP_SETCLIENTID;
if (data->minorversion > 0) {
res_SETCLIENTID4->status = NFS4ERR_NOTSUPP;
return res_SETCLIENTID4->status;
}
if (op_ctx->client != NULL)
str_client_addr = op_ctx->client->hostaddr_str;
if (isDebug(COMPONENT_CLIENTID)) {
display_opaque_value(&dspbuf_client,
arg_SETCLIENTID4->client.id.id_val,
arg_SETCLIENTID4->client.id.id_len);
display_opaque_bytes(&dspbuf_verifier,
arg_SETCLIENTID4->client.verifier,
NFS4_VERIFIER_SIZE);
} else {
str_client[0] = '\0';
str_verifier[0] = '\0';
}
LogDebug(COMPONENT_CLIENTID,
"SETCLIENTID Client addr=%s id=%s verf=%s callback={program=%u r_addr=%s r_netid=%s} ident=%u",
str_client_addr, str_client, str_verifier,
arg_SETCLIENTID4->callback.cb_program,
arg_SETCLIENTID4->callback.cb_location.r_addr,
arg_SETCLIENTID4->callback.cb_location.r_netid,
arg_SETCLIENTID4->callback_ident);
/* Do we already have one or more records for client id (x)? */
client_record = get_client_record(arg_SETCLIENTID4->client.id.id_val,
arg_SETCLIENTID4->client.id.id_len,
0,
0);
if (client_record == NULL) {
/* Some major failure */
LogCrit(COMPONENT_CLIENTID, "SETCLIENTID failed");
res_SETCLIENTID4->status = NFS4ERR_SERVERFAULT;
return res_SETCLIENTID4->status;
}
/* The following checks are based on RFC3530bis draft 16
*
* This attempts to implement the logic described in
* 15.35.5. IMPLEMENTATION Consider the major bullets as CASE
* 1, CASE 2, CASE 3, CASE 4, and CASE 5.
*/
PTHREAD_MUTEX_lock(&client_record->cr_mutex);
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);
}
conf = client_record->cr_confirmed_rec;
if (conf != NULL) {
bool credmatch;
/* Need a reference to the confirmed record for below */
inc_client_id_ref(conf);
clientid = conf->cid_clientid;
display_clientid(&dspbuf_clientid4, clientid);
credmatch = nfs_compare_clientcred(&conf->cid_credential,
&data->credential)
&& op_ctx->client != NULL
&& conf->gsh_client != NULL
&& op_ctx->client == conf->gsh_client;
/* Only reject if the principal doesn't match and the
* clientid has live state associated. Per RFC 7530
* Section 9.1.2. Server Release of Client ID.
*/
if (!credmatch && clientid_has_state(conf)) {
/* CASE 1:
*
* Confirmed record exists and not the same principal
*/
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': Principals do not match... confirmed addr=%s Return NFS4ERR_CLID_INUSE",
str_clientid4, str_client,
confirmed_addr);
}
res_SETCLIENTID4->status = NFS4ERR_CLID_INUSE;
res_SETCLIENTID4_INUSE->r_netid =
(char *)netid_nc_table[conf->cid_cb.v40.cb_addr.nc]
.netid;
res_SETCLIENTID4_INUSE->r_addr =
gsh_strdup(conf->cid_cb.v40.cb_client_r_addr);
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(conf);
goto out;
}
/* Check if confirmed record is for (v, x, c, l, s) */
if (credmatch && memcmp(arg_SETCLIENTID4->client.verifier,
conf->cid_incoming_verifier,
NFS4_VERIFIER_SIZE) == 0) {
/* CASE 2:
*
* A confirmed record exists for this long
* form client id and verifier.
*
* Consider this to be a possible update of
* the call-back information.
*
* Remove any pre-existing unconfirmed record
* for (v, x, c).
*
* Return the same short form client id (c),
* but a new setclientid_confirm verifier (t).
*/
LogFullDebug(COMPONENT_CLIENTID,
"Update ClientId %s->%s",
str_clientid4, str_client);
new_clientid_verifier(verifier);
} else {
/* Must be CASE 3 or CASE 4
*
* Confirmed record is for (u, x, c, l, s).
*
* These are actually the same, doesn't really
* matter if an unconfirmed record exists or
* not. Any existing unconfirmed record will
* be removed and a new unconfirmed record
* added.
*
* Return a new short form clientid (d) and a
* new setclientid_confirm verifier (t). (Note
* the spec calls the values e and r for CASE
* 4).
*/
LogFullDebug(COMPONENT_CLIENTID,
"Replace ClientId %s->%s",
str_clientid4, str_client);
clientid = new_clientid();
new_clientid_verifier(verifier);
}
/* Release our reference to the confirmed clientid. */
dec_client_id_ref(conf);
} else {
/* CASE 5:
*
*
* Remove any existing unconfirmed record.
*
* Return a new short form clientid (d) and a new
* setclientid_confirm verifier (t).
*/
clientid = new_clientid();
display_clientid(&dspbuf_clientid4, clientid);
LogFullDebug(COMPONENT_CLIENTID,
"New client %s", str_clientid4);
new_clientid_verifier(verifier);
}
/* At this point, no matter what the case was above, we should
* remove any pre-existing unconfirmed record.
*/
unconf = client_record->cr_unconfirmed_rec;
if (unconf != NULL) {
/* Delete the unconfirmed clientid record. Because we
* have the cr_mutex, we have won any race to deal
* with this clientid record (whether we raced with a
* SETCLIENTID_CONFIRM or the reaper thread (if either
* of those operations had won the race,
* cr_punconfirmed_id would have been NULL).
*/
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, "Replacing %s", str);
}
/* unhash the clientid record */
remove_unconfirmed_client_id(unconf);
unconf = NULL;
}
/* Now we can proceed to build the new unconfirmed record. We
* have determined the clientid and setclientid_confirm values
* above.
*/
unconf = create_client_id(clientid,
client_record,
&data->credential,
0);
if (unconf == NULL) {
/* Error already logged, return */
res_SETCLIENTID4->status = NFS4ERR_RESOURCE;
goto out;
}
if (strmaxcpy(unconf->cid_cb.v40.cb_client_r_addr,
arg_SETCLIENTID4->callback.cb_location.r_addr,
sizeof(unconf->cid_cb.v40.cb_client_r_addr)) == -1) {
LogCrit(COMPONENT_CLIENTID, "Callback r_addr %s too long",
arg_SETCLIENTID4->callback.cb_location.r_addr);
res_SETCLIENTID4->status = NFS4ERR_INVAL;
goto out;
}
nfs_set_client_location(unconf,
&arg_SETCLIENTID4->callback.cb_location);
memcpy(unconf->cid_incoming_verifier,
arg_SETCLIENTID4->client.verifier,
NFS4_VERIFIER_SIZE);
memcpy(unconf->cid_verifier, verifier, sizeof(NFS4_write_verifier));
unconf->cid_cb.v40.cb_program = arg_SETCLIENTID4->callback.cb_program;
unconf->cid_cb.v40.cb_callback_ident = arg_SETCLIENTID4->callback_ident;
rc = nfs_client_id_insert(unconf);
if (rc != CLIENT_ID_SUCCESS) {
/* Record is already freed, return. */
res_SETCLIENTID4->status =
clientid_error_to_nfsstat_no_expire(rc);
goto out;
}
if (isDebug(COMPONENT_CLIENTID)) {
char str[LOG_BUFF_LEN] = "\0";
struct display_buffer dspbuf = {sizeof(str), str, str};
sprint_mem(str_verifier, verifier, NFS4_VERIFIER_SIZE);
display_client_id_rec(&dspbuf, unconf);
LogDebug(COMPONENT_CLIENTID, "SETCLIENTID reply Verifier=%s %s",
str_verifier, str);
}
res_SETCLIENTID4->status = NFS4_OK;
res_SETCLIENTID4->SETCLIENTID4res_u.resok4.clientid = clientid;
memcpy(res_SETCLIENTID4->SETCLIENTID4res_u.resok4.setclientid_confirm,
&verifier, NFS4_VERIFIER_SIZE);
out:
PTHREAD_MUTEX_unlock(&client_record->cr_mutex);
/* Release our reference to the client record */
dec_client_record_ref(client_record);
return res_SETCLIENTID4->status;
}