static void nlm4_unlock_message_resp(state_async_queue_t *arg)
{
state_nlm_async_data_t *nlm_arg =
&arg->state_async_data.state_nlm_async_data;
if (isFullDebug(COMPONENT_NLM)) {
char buffer[1024] = "\0";
netobj_to_string(&nlm_arg->nlm_async_args.nlm_async_res.
res_nlm4test.cookie, buffer, 1024);
LogFullDebug(COMPONENT_NLM,
"Calling nlm_send_async cookie=%s status=%s",
buffer,
lock_result_str(nlm_arg->nlm_async_args.
nlm_async_res.res_nlm4.stat.stat));
}
nlm_send_async(NLMPROC4_UNLOCK_RES, nlm_arg->nlm_async_host,
&(nlm_arg->nlm_async_args.nlm_async_res), NULL);
nlm4_Unlock_Free(&nlm_arg->nlm_async_args.nlm_async_res);
dec_nsm_client_ref(nlm_arg->nlm_async_host->slc_nsm_client);
dec_nlm_client_ref(nlm_arg->nlm_async_host);
gsh_free(arg);
}
static void nlm4_test_message_resp(nlm_async_queue_t *arg)
{
if(isFullDebug(COMPONENT_NLM))
{
char buffer[1024];
netobj_to_string(&arg->nlm_async_args.nlm_async_res.res_nlm4test.cookie, buffer, 1024);
LogFullDebug(COMPONENT_NLM,
"Calling nlm_send_async cookie=%s status=%s",
buffer, lock_result_str(arg->nlm_async_args.nlm_async_res.res_nlm4test.test_stat.stat));
}
nlm_send_async(NLMPROC4_TEST_RES,
arg->nlm_async_host,
&(arg->nlm_async_args.nlm_async_res),
NULL);
nlm4_Test_Free(&arg->nlm_async_args.nlm_async_res);
dec_nlm_client_ref(arg->nlm_async_host);
Mem_Free(arg);
}
int nlm4_Unlock(nfs_arg_t * parg /* IN */ ,
exportlist_t * pexport /* IN */ ,
fsal_op_context_t * pcontext /* IN */ ,
cache_inode_client_t * pclient /* INOUT */ ,
hash_table_t * ht /* INOUT */ ,
struct svc_req *preq /* IN */ ,
nfs_res_t * pres /* OUT */ )
{
nlm4_unlockargs * arg = &parg->arg_nlm4_unlock;
cache_entry_t * pentry;
state_status_t state_status = CACHE_INODE_SUCCESS;
char buffer[MAXNETOBJ_SZ * 2];
state_nsm_client_t * nsm_client;
state_nlm_client_t * nlm_client;
state_owner_t * nlm_owner;
state_lock_desc_t lock;
int rc;
netobj_to_string(&arg->cookie, buffer, sizeof(buffer));
LogDebug(COMPONENT_NLM,
"REQUEST PROCESSING: Calling nlm4_Unlock svid=%d off=%llx len=%llx cookie=%s",
(int) arg->alock.svid,
(unsigned long long) arg->alock.l_offset,
(unsigned long long) arg->alock.l_len,
buffer);
if(!copy_netobj(&pres->res_nlm4test.cookie, &arg->cookie))
{
pres->res_nlm4.stat.stat = NLM4_FAILED;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Unlock %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
if(in_nlm_grace_period())
{
pres->res_nlm4.stat.stat = NLM4_DENIED_GRACE_PERIOD;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Unlock %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
rc = nlm_process_parameters(preq,
FALSE, /* exlcusive doesn't matter */
&arg->alock,
&lock,
ht,
&pentry,
pcontext,
pclient,
CARE_NOT, /* unlock doesn't care if owner is found */
&nsm_client,
&nlm_client,
&nlm_owner,
NULL);
if(rc >= 0)
{
/* Present the error back to the client */
pres->res_nlm4.stat.stat = (nlm4_stats)rc;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Unlock %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
if(state_unlock(pentry,
pcontext,
nlm_owner,
NULL,
&lock,
pclient,
&state_status) != STATE_SUCCESS)
{
/* Unlock could fail in the FSAL and make a bit of a mess, especially if
* we are in out of memory situation. Such an error is logged by
* Cache Inode.
*/
pres->res_nlm4test.test_stat.stat = nlm_convert_state_error(state_status);
}
else
{
pres->res_nlm4.stat.stat = NLM4_GRANTED;
}
/* Release the NLM Client and NLM Owner references we have */
dec_nsm_client_ref(nsm_client);
dec_nlm_client_ref(nlm_client);
dec_state_owner_ref(nlm_owner, pclient);
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Unlock %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
/**
* nlm4_Granted_Res: Lock Granted Result Handler
*
* @param parg [IN]
* @param pexportlist [IN]
* @param pcontextp [IN]
* @param pclient [INOUT]
* @param ht [INOUT]
* @param preq [IN]
* @param pres [OUT]
*
*/
int nlm4_Granted_Res(nfs_arg_t * parg /* IN */ ,
exportlist_t * dummy_pexport /* IN */ ,
fsal_op_context_t * dummy_pcontext /* IN */ ,
cache_inode_client_t * pclient /* INOUT */ ,
hash_table_t * ht /* INOUT */ ,
struct svc_req *preq /* IN */ ,
nfs_res_t * pres /* OUT */ )
{
nlm4_res * arg = &parg->arg_nlm4_res;
char buffer[1024];
state_status_t state_status = STATE_SUCCESS;
state_cookie_entry_t * cookie_entry;
fsal_op_context_t context, * pcontext = &context;
netobj_to_string(&arg->cookie, buffer, 1024);
LogDebug(COMPONENT_NLM,
"REQUEST PROCESSING: Calling nlm_Granted_Res cookie=%s",
buffer);
if(state_find_grant(arg->cookie.n_bytes,
arg->cookie.n_len,
&cookie_entry,
&state_status) != STATE_SUCCESS)
{
/* This must be an old NLM_GRANTED_RES */
LogFullDebug(COMPONENT_NLM,
"Could not find cookie=%s (must be an old NLM_GRANTED_RES)",
buffer);
return NFS_REQ_OK;
}
P(cookie_entry->sce_pentry->object.file.lock_list_mutex);
if(cookie_entry->sce_lock_entry == NULL ||
cookie_entry->sce_lock_entry->sle_block_data == NULL ||
!nlm_block_data_to_fsal_context(&cookie_entry->sce_lock_entry->sle_block_data->sbd_block_data.sbd_nlm_block_data,
pcontext))
{
/* This must be an old NLM_GRANTED_RES */
V(cookie_entry->sce_pentry->object.file.lock_list_mutex);
LogFullDebug(COMPONENT_NLM,
"Could not find block data for cookie=%s (must be an old NLM_GRANTED_RES)",
buffer);
return NFS_REQ_OK;
}
V(cookie_entry->sce_pentry->object.file.lock_list_mutex);
if(arg->stat.stat != NLM4_GRANTED)
{
LogMajor(COMPONENT_NLM,
"Granted call failed due to client error, releasing lock");
if(state_release_grant(pcontext,
cookie_entry,
pclient,
&state_status) != STATE_SUCCESS)
{
LogDebug(COMPONENT_NLM,
"cache_inode_release_grant failed");
}
}
else
{
state_complete_grant(pcontext, cookie_entry, pclient);
nlm_signal_async_resp(cookie_entry);
}
return NFS_REQ_OK;
}
state_status_t nlm_granted_callback(cache_entry_t * pentry,
state_lock_entry_t * lock_entry,
state_status_t * pstatus)
{
fsal_op_context_t fsal_context, *pcontext = &fsal_context;
state_block_data_t * block_data = lock_entry->sle_block_data;
state_nlm_block_data_t * nlm_block_data = &block_data->sbd_block_data.sbd_nlm_block_data;
state_cookie_entry_t * cookie_entry = NULL;
state_async_queue_t * arg;
nlm4_testargs * inarg;
state_nlm_owner_t * nlm_grant_owner = &lock_entry->sle_owner->so_owner.so_nlm_owner;
state_nlm_client_t * nlm_grant_client = nlm_grant_owner->so_client;
granted_cookie_t nlm_grant_cookie;
state_status_t dummy_status;
if(nlm_block_data_to_fsal_context(block_data, &fsal_context) != TRUE)
{
*pstatus = STATE_INCONSISTENT_ENTRY;
return *pstatus;
}
arg = gsh_malloc(sizeof(*arg));
if(arg == NULL)
{
/* If we fail allocation the best is to delete the block entry
* so that client can try again and get the lock. May be
* by then we are able to allocate objects
*/
*pstatus = STATE_MALLOC_ERROR;
return *pstatus;
}
memset(arg, 0, sizeof(*arg));
/* Get a cookie to use for this grant */
next_granted_cookie(&nlm_grant_cookie);
/* Add a cookie to the blocked lock pending grant.
* It will also request lock from FSAL.
* Could return STATE_LOCK_BLOCKED because FSAL would have had to block.
*/
if(state_add_grant_cookie(pentry,
pcontext,
&nlm_grant_cookie,
sizeof(nlm_grant_cookie),
lock_entry,
&cookie_entry,
pstatus) != STATE_SUCCESS)
{
free_grant_arg(arg);
return *pstatus;
}
/* Fill in the arguments for the NLMPROC4_GRANTED_MSG call */
inc_nlm_client_ref(nlm_grant_client);
arg->state_async_func = nlm4_send_grant_msg;
arg->state_async_data.state_nlm_async_data.nlm_async_host = nlm_grant_client;
arg->state_async_data.state_nlm_async_data.nlm_async_key = cookie_entry;
inarg = &arg->state_async_data.state_nlm_async_data.nlm_async_args.nlm_async_grant;
if(!copy_netobj(&inarg->alock.fh, &nlm_block_data->sbd_nlm_fh))
goto grant_fail_malloc;
if(!fill_netobj(&inarg->alock.oh,
lock_entry->sle_owner->so_owner_val,
lock_entry->sle_owner->so_owner_len))
goto grant_fail_malloc;
if(!fill_netobj(&inarg->cookie,
(char *) &nlm_grant_cookie,
sizeof(nlm_grant_cookie)))
goto grant_fail_malloc;
inarg->alock.caller_name = gsh_strdup(nlm_grant_client->slc_nlm_caller_name);
if(!inarg->alock.caller_name)
goto grant_fail_malloc;
inarg->exclusive = lock_entry->sle_lock.lock_type == FSAL_LOCK_W;
inarg->alock.svid = nlm_grant_owner->so_nlm_svid;
inarg->alock.l_offset = lock_entry->sle_lock.lock_start;
inarg->alock.l_len = lock_entry->sle_lock.lock_length;
if(isDebug(COMPONENT_NLM))
{
char buffer[1024];
netobj_to_string(&inarg->cookie, buffer, sizeof(buffer));
LogDebug(COMPONENT_NLM,
"Sending GRANTED for arg=%p svid=%d start=%llx len=%llx cookie=%s",
arg, inarg->alock.svid,
(unsigned long long) inarg->alock.l_offset, (unsigned long long) inarg->alock.l_len,
buffer);
}
/* Now try to schedule NLMPROC4_GRANTED_MSG call */
*pstatus = state_async_schedule(arg);
if(*pstatus != STATE_SUCCESS)
goto grant_fail;
return *pstatus;
grant_fail_malloc:
*pstatus = STATE_MALLOC_ERROR;
grant_fail:
/* Something went wrong after we added a grant cookie, need to clean up */
dec_nlm_client_ref(nlm_grant_client);
/* Clean up NLMPROC4_GRANTED_MSG arguments */
free_grant_arg(arg);
/* Cancel the pending grant to release the cookie */
if(state_cancel_grant(pcontext,
cookie_entry,
&dummy_status) != STATE_SUCCESS)
{
/* Not much we can do other than log that something bad happened. */
LogCrit(COMPONENT_NLM,
"Unable to clean up GRANTED lock after error");
}
return *pstatus;
}
/**
*
* nlm4_send_grant_msg: Send NLMPROC4_GRANTED_MSG
*
* This runs in the nlm_asyn_thread context.
*/
static void nlm4_send_grant_msg(state_async_queue_t *arg)
{
int retval;
char buffer[1024];
state_status_t state_status = STATE_SUCCESS;
state_cookie_entry_t * cookie_entry;
fsal_op_context_t context, * pcontext = &context;
state_nlm_async_data_t * nlm_arg = &arg->state_async_data.state_nlm_async_data;
if(isDebug(COMPONENT_NLM))
{
netobj_to_string(&nlm_arg->nlm_async_args.nlm_async_grant.cookie,
buffer, sizeof(buffer));
LogDebug(COMPONENT_NLM,
"Sending GRANTED for arg=%p svid=%d start=%llx len=%llx cookie=%s",
arg, nlm_arg->nlm_async_args.nlm_async_grant.alock.svid,
(unsigned long long) nlm_arg->nlm_async_args.nlm_async_grant.alock.l_offset,
(unsigned long long) nlm_arg->nlm_async_args.nlm_async_grant.alock.l_len,
buffer);
}
retval = nlm_send_async(NLMPROC4_GRANTED_MSG,
nlm_arg->nlm_async_host,
&(nlm_arg->nlm_async_args.nlm_async_grant),
nlm_arg->nlm_async_key);
dec_nlm_client_ref(nlm_arg->nlm_async_host);
free_grant_arg(arg);
/* If success, we are done. */
if(retval == RPC_SUCCESS)
return;
/*
* We are not able call granted callback. Some client may retry
* the lock again. So remove the existing blocked nlm entry
*/
LogMajor(COMPONENT_NLM,
"GRANTED_MSG RPC call failed with return code %d. Removing the blocking lock",
retval);
if(state_find_grant(nlm_arg->nlm_async_args.nlm_async_grant.cookie.n_bytes,
nlm_arg->nlm_async_args.nlm_async_grant.cookie.n_len,
&cookie_entry,
&state_status) != STATE_SUCCESS)
{
/* This must be an old NLM_GRANTED_RES */
LogFullDebug(COMPONENT_NLM,
"Could not find cookie=%s status=%s",
buffer, state_err_str(state_status));
return;
}
PTHREAD_RWLOCK_WRLOCK(&cookie_entry->sce_pentry->state_lock);
if(cookie_entry->sce_lock_entry->sle_block_data == NULL ||
!nlm_block_data_to_fsal_context(cookie_entry->sce_lock_entry->sle_block_data,
pcontext))
{
/* Wow, we're not doing well... */
PTHREAD_RWLOCK_UNLOCK(&cookie_entry->sce_pentry->state_lock);
LogFullDebug(COMPONENT_NLM,
"Could not find block data for cookie=%s (must be an old NLM_GRANTED_RES)",
buffer);
return;
}
PTHREAD_RWLOCK_UNLOCK(&cookie_entry->sce_pentry->state_lock);
if(state_release_grant(pcontext,
cookie_entry,
&state_status) != STATE_SUCCESS)
{
/* Huh? */
LogFullDebug(COMPONENT_NLM,
"Could not release cookie=%s status=%s",
buffer, state_err_str(state_status));
}
}
int nlm4_Share(nfs_arg_t * parg,
exportlist_t * pexport,
fsal_op_context_t * pcontext,
nfs_worker_data_t * pworker,
struct svc_req * preq,
nfs_res_t * pres)
{
nlm4_shareargs * arg = &parg->arg_nlm4_share;
cache_entry_t * pentry;
state_status_t state_status = STATE_SUCCESS;
char buffer[MAXNETOBJ_SZ * 2];
state_nsm_client_t * nsm_client;
state_nlm_client_t * nlm_client;
state_owner_t * nlm_owner;
int rc;
int grace = nfs_in_grace();
pres->res_nlm4share.sequence = 0;
netobj_to_string(&arg->cookie, buffer, 1024);
LogDebug(COMPONENT_NLM,
"REQUEST PROCESSING: Calling nlm4_Share cookie=%s reclaim=%s",
buffer,
arg->reclaim ? "yes" : "no");
if(!copy_netobj(&pres->res_nlm4share.cookie, &arg->cookie))
{
pres->res_nlm4share.stat = NLM4_FAILED;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Share %s",
lock_result_str(pres->res_nlm4share.stat));
return NFS_REQ_OK;
}
/* Allow only reclaim share request during recovery and visa versa.
* Note: NLM_SHARE is indicated to be non-monitored, however, it does
* have a reclaim flag, so we will honor the reclaim flag if used.
*/
if((grace && !arg->reclaim) ||
(!grace && arg->reclaim))
{
pres->res_nlm4share.stat = NLM4_DENIED_GRACE_PERIOD;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Share %s",
lock_result_str(pres->res_nlm4share.stat));
return NFS_REQ_OK;
}
rc = nlm_process_share_parms(preq,
&arg->share,
&pentry,
pcontext,
CARE_NO_MONITOR,
&nsm_client,
&nlm_client,
&nlm_owner);
if(rc >= 0)
{
/* Present the error back to the client */
pres->res_nlm4share.stat = (nlm4_stats)rc;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Share %s",
lock_result_str(pres->res_nlm4share.stat));
return NFS_REQ_OK;
}
if(state_nlm_share(pentry,
pcontext,
pexport,
arg->share.access,
arg->share.mode,
nlm_owner,
&state_status) != STATE_SUCCESS)
{
pres->res_nlm4share.stat = nlm_convert_state_error(state_status);
}
else
{
pres->res_nlm4share.stat = NLM4_GRANTED;
}
/* Release the NLM Client and NLM Owner references we have */
dec_nsm_client_ref(nsm_client);
dec_nlm_client_ref(nlm_client);
dec_state_owner_ref(nlm_owner);
cache_inode_put(pentry);
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Share %s",
lock_result_str(pres->res_nlm4share.stat));
return NFS_REQ_OK;
}
int nlm4_Lock(nfs_arg_t * parg /* IN */ ,
exportlist_t * pexport /* IN */ ,
fsal_op_context_t * pcontext /* IN */ ,
cache_inode_client_t * pclient /* INOUT */ ,
hash_table_t * ht /* INOUT */ ,
struct svc_req * preq /* IN */ ,
nfs_res_t * pres /* OUT */ )
{
nlm4_lockargs * arg = &parg->arg_nlm4_lock;
cache_entry_t * pentry;
state_status_t state_status = CACHE_INODE_SUCCESS;
char buffer[MAXNETOBJ_SZ * 2];
state_nsm_client_t * nsm_client;
state_nlm_client_t * nlm_client;
state_owner_t * nlm_owner, * holder;
state_lock_desc_t lock, conflict;
int rc;
state_block_data_t * pblock_data;
netobj_to_string(&arg->cookie, buffer, 1024);
LogDebug(COMPONENT_NLM,
"REQUEST PROCESSING: Calling nlm4_Lock svid=%d off=%llx len=%llx cookie=%s",
(int) arg->alock.svid,
(unsigned long long) arg->alock.l_offset,
(unsigned long long) arg->alock.l_len, buffer);
if(!copy_netobj(&pres->res_nlm4test.cookie, &arg->cookie))
{
pres->res_nlm4.stat.stat = NLM4_FAILED;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Test %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
/* allow only reclaim lock request during recovery */
if(in_nlm_grace_period() && !arg->reclaim)
{
pres->res_nlm4.stat.stat = NLM4_DENIED_GRACE_PERIOD;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Lock %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
if(!in_nlm_grace_period() && arg->reclaim)
{
pres->res_nlm4.stat.stat = NLM4_DENIED_GRACE_PERIOD;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Lock %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
rc = nlm_process_parameters(preq,
arg->exclusive,
&arg->alock,
&lock,
ht,
&pentry,
pcontext,
pclient,
CARE_MONITOR,
&nsm_client,
&nlm_client,
&nlm_owner,
&pblock_data);
if(rc >= 0)
{
/* Present the error back to the client */
pres->res_nlm4.stat.stat = (nlm4_stats)rc;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Unlock %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
/* Cast the state number into a state pointer to protect
* locks from a client that has rebooted from the SM_NOTIFY
* that will release old locks
*/
if(state_lock(pentry,
pcontext,
nlm_owner,
(void *) (ptrdiff_t) arg->state,
arg->block,
pblock_data,
&lock,
&holder,
&conflict,
pclient,
&state_status) != STATE_SUCCESS)
{
pres->res_nlm4test.test_stat.stat = nlm_convert_state_error(state_status);
if(state_status == STATE_LOCK_CONFLICT)
{
nlm_process_conflict(&pres->res_nlm4test.test_stat.nlm4_testrply_u.holder,
holder,
&conflict,
pclient);
}
/* If we didn't block, release the block data */
if(state_status != STATE_LOCK_BLOCKED && pblock_data != NULL)
Mem_Free(pblock_data);
}
else
{
pres->res_nlm4.stat.stat = NLM4_GRANTED;
}
/* Release the NLM Client and NLM Owner references we have */
dec_nsm_client_ref(nsm_client);
dec_nlm_client_ref(nlm_client);
dec_state_owner_ref(nlm_owner, pclient);
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Lock %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
int nlm4_Test(nfs_arg_t * parg /* IN */ ,
exportlist_t * pexport /* IN */ ,
fsal_op_context_t * pcontext /* IN */ ,
cache_inode_client_t * pclient /* INOUT */ ,
hash_table_t * ht /* INOUT */ ,
struct svc_req *preq /* IN */ ,
nfs_res_t * pres /* OUT */ )
{
nlm4_testargs * arg = &parg->arg_nlm4_test;
cache_entry_t * pentry;
state_status_t state_status = CACHE_INODE_SUCCESS;
char buffer[MAXNETOBJ_SZ * 2];
state_nlm_client_t * nlm_client;
state_owner_t * nlm_owner, * holder;
state_lock_desc_t lock, conflict;
int rc;
netobj_to_string(&arg->cookie, buffer, 1024);
LogDebug(COMPONENT_NLM,
"REQUEST PROCESSING: Calling nlm4_Test svid=%d off=%llx len=%llx cookie=%s",
(int) arg->alock.svid,
(unsigned long long) arg->alock.l_offset,
(unsigned long long) arg->alock.l_len,
buffer);
if(!copy_netobj(&pres->res_nlm4test.cookie, &arg->cookie))
{
pres->res_nlm4test.test_stat.stat = NLM4_FAILED;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Test %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
if(in_nlm_grace_period())
{
pres->res_nlm4test.test_stat.stat = NLM4_DENIED_GRACE_PERIOD;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Test %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
/* TODO FSF:
*
* TEST passes TRUE for care because we do need a non-NULL owner, but
* we could expand the options to allow for a "free" owner to be
* returned, that doesn't need to be in the hash table, so if the
* owner isn't found in the Hash table, don't add it, just return
* the "free" owner.
*/
rc = nlm_process_parameters(preq,
arg->exclusive,
&arg->alock,
&lock,
ht,
&pentry,
pcontext,
pclient,
CARE_NO_MONITOR,
&nlm_client,
&nlm_owner,
NULL);
if(rc >= 0)
{
/* Present the error back to the client */
pres->res_nlm4.stat.stat = (nlm4_stats)rc;
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Unlock %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
if(state_test(pentry,
pcontext,
nlm_owner,
&lock,
&holder,
&conflict,
pclient,
&state_status) != STATE_SUCCESS)
{
pres->res_nlm4test.test_stat.stat = nlm_convert_state_error(state_status);
if(state_status == STATE_LOCK_CONFLICT)
{
nlm_process_conflict(&pres->res_nlm4test.test_stat.nlm4_testrply_u.holder,
holder,
&conflict);
}
}
else
{
pres->res_nlm4.stat.stat = NLM4_GRANTED;
}
LogFullDebug(COMPONENT_NLM,
"Back from state_test");
/* Release the NLM Client and NLM Owner references we have */
dec_nlm_client_ref(nlm_client);
dec_nlm_owner_ref(nlm_owner);
LogDebug(COMPONENT_NLM,
"REQUEST RESULT: nlm4_Test %s",
lock_result_str(pres->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
/**
*
* nlm4_send_grant_msg: Send NLMPROC4_GRANTED_MSG
*
* This runs in the nlm_asyn_thread context.
*/
static void nlm4_send_grant_msg(state_async_queue_t *arg)
{
int retval;
char buffer[1024];
state_status_t state_status = STATE_SUCCESS;
state_cookie_entry_t *cookie_entry;
state_nlm_async_data_t *nlm_arg =
&arg->state_async_data.state_nlm_async_data;
struct root_op_context root_op_context;
struct gsh_export *export;
if (isDebug(COMPONENT_NLM)) {
netobj_to_string(&nlm_arg->nlm_async_args.nlm_async_grant.
cookie, buffer, sizeof(buffer));
LogDebug(COMPONENT_NLM,
"Sending GRANTED for arg=%p svid=%d start=%llx len=%llx cookie=%s",
arg,
nlm_arg->nlm_async_args.nlm_async_grant.alock.svid,
(unsigned long long)nlm_arg->nlm_async_args.
nlm_async_grant.alock.l_offset,
(unsigned long long)nlm_arg->nlm_async_args.
nlm_async_grant.alock.l_len, buffer);
}
retval = nlm_send_async(NLMPROC4_GRANTED_MSG,
nlm_arg->nlm_async_host,
&nlm_arg->nlm_async_args.nlm_async_grant,
nlm_arg->nlm_async_key);
dec_nlm_client_ref(nlm_arg->nlm_async_host);
/* If success, we are done. */
if (retval == RPC_SUCCESS)
goto out;
/*
* We are not able call granted callback. Some client may retry
* the lock again. So remove the existing blocked nlm entry
*/
LogMajor(COMPONENT_NLM,
"GRANTED_MSG RPC call failed with return code %d. Removing the blocking lock",
retval);
state_status = state_find_grant(
nlm_arg->nlm_async_args.nlm_async_grant.cookie.n_bytes,
nlm_arg->nlm_async_args.nlm_async_grant.cookie.n_len,
&cookie_entry);
if (state_status != STATE_SUCCESS) {
/* This must be an old NLM_GRANTED_RES */
LogFullDebug(COMPONENT_NLM,
"Could not find cookie=%s status=%s", buffer,
state_err_str(state_status));
goto out;
}
if (cookie_entry->sce_lock_entry->sle_block_data == NULL) {
/* Wow, we're not doing well... */
LogFullDebug(COMPONENT_NLM,
"Could not find block data for cookie=%s (must be an old NLM_GRANTED_RES)",
buffer);
goto out;
}
/* Initialize a context, it is ok if the export is stale because
* we must clean up the cookie_entry.
*/
export = cookie_entry->sce_lock_entry->sle_export;
int nlm4_Unlock(nfs_arg_t *args, struct svc_req *req, nfs_res_t *res)
{
nlm4_unlockargs *arg = &args->arg_nlm4_unlock;
struct fsal_obj_handle *obj;
state_status_t state_status = STATE_SUCCESS;
char buffer[MAXNETOBJ_SZ * 2] = "\0";
state_nsm_client_t *nsm_client;
state_nlm_client_t *nlm_client;
state_owner_t *nlm_owner;
fsal_lock_param_t lock;
int rc;
state_t *state;
/* NLM doesn't have a BADHANDLE error, nor can rpc_execute deal with
* responding to an NLM_*_MSG call, so we check here if the export is
* NULL and if so, handle the response.
*/
if (op_ctx->ctx_export == NULL) {
res->res_nlm4.stat.stat = NLM4_STALE_FH;
LogInfo(COMPONENT_NLM, "INVALID HANDLE: nlm4_Unlock");
return NFS_REQ_OK;
}
netobj_to_string(&arg->cookie, buffer, sizeof(buffer));
LogDebug(COMPONENT_NLM,
"REQUEST PROCESSING: Calling nlm4_Unlock svid=%d off=%llx len=%llx cookie=%s",
(int)arg->alock.svid,
(unsigned long long)arg->alock.l_offset,
(unsigned long long)arg->alock.l_len, buffer);
copy_netobj(&res->res_nlm4test.cookie, &arg->cookie);
if (nfs_in_grace()) {
res->res_nlm4.stat.stat = NLM4_DENIED_GRACE_PERIOD;
LogDebug(COMPONENT_NLM,
"REQUEST RESULT: nlm4_Unlock %s",
lock_result_str(res->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
/* unlock doesn't care if owner is found */
rc = nlm_process_parameters(req,
false,
&arg->alock,
&lock,
&obj,
CARE_NOT,
&nsm_client,
&nlm_client,
&nlm_owner,
NULL,
0,
&state);
if (rc >= 0) {
/* resent the error back to the client */
res->res_nlm4.stat.stat = (nlm4_stats) rc;
LogDebug(COMPONENT_NLM,
"REQUEST RESULT: nlm4_Unlock %s",
lock_result_str(res->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
if (state != NULL)
state_status =
state_unlock(obj, state, nlm_owner, false, 0, &lock);
if (state_status != STATE_SUCCESS) {
/* Unlock could fail in the FSAL and make a bit of a mess,
* especially if we are in out of memory situation. Such an
* error is logged by Cache Inode.
*/
res->res_nlm4test.test_stat.stat =
nlm_convert_state_error(state_status);
} else {
res->res_nlm4.stat.stat = NLM4_GRANTED;
}
/* Release the NLM Client and NLM Owner references we have */
if (state != NULL)
dec_state_t_ref(state);
dec_nsm_client_ref(nsm_client);
dec_nlm_client_ref(nlm_client);
dec_state_owner_ref(nlm_owner);
obj->obj_ops.put_ref(obj);
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Unlock %s",
lock_result_str(res->res_nlm4.stat.stat));
return NFS_REQ_OK;
}
int nlm4_Unshare(nfs_arg_t *args, struct svc_req *req, nfs_res_t *res)
{
nlm4_shareargs *arg = &args->arg_nlm4_share;
struct fsal_obj_handle *obj;
state_status_t state_status = STATE_SUCCESS;
char buffer[MAXNETOBJ_SZ * 2] = "\0";
state_nsm_client_t *nsm_client;
state_nlm_client_t *nlm_client;
state_owner_t *nlm_owner;
state_t *nlm_state;
int rc;
/* NLM doesn't have a BADHANDLE error, nor can rpc_execute deal with
* responding to an NLM_*_MSG call, so we check here if the export is
* NULL and if so, handle the response.
*/
if (op_ctx->ctx_export == NULL) {
res->res_nlm4share.stat = NLM4_STALE_FH;
LogInfo(COMPONENT_NLM, "INVALID HANDLE: NLM4_UNSHARE");
return NFS_REQ_OK;
}
res->res_nlm4share.sequence = 0;
netobj_to_string(&arg->cookie, buffer, 1024);
if (isDebug(COMPONENT_NLM)) {
char str[LEN_FH_STR];
char oh[MAXNETOBJ_SZ * 2] = "\0";
sprint_fhandle3(str, (struct nfs_fh3 *)&arg->share.fh);
netobj_to_string(&arg->share.oh, oh, 1024);
LogDebug(COMPONENT_NLM,
"REQUEST PROCESSING: Calling NLM4_UNSHARE handle: %s, cookie=%s, reclaim=%s, owner=%s, access=%d, deny=%d",
str, buffer, arg->reclaim ? "yes" : "no", oh,
arg->share.access,
arg->share.mode);
}
copy_netobj(&res->res_nlm4share.cookie, &arg->cookie);
rc = nlm_process_share_parms(req,
&arg->share,
op_ctx->fsal_export,
&obj,
CARE_NOT,
&nsm_client,
&nlm_client,
&nlm_owner,
&nlm_state);
if (rc >= 0) {
/* Present the error back to the client */
res->res_nlm4share.stat = (nlm4_stats) rc;
LogDebug(COMPONENT_NLM,
"REQUEST RESULT: NLM4_UNSHARE %s",
lock_result_str(res->res_nlm4share.stat));
return NFS_REQ_OK;
}
state_status = state_nlm_share(obj,
arg->share.access,
arg->share.mode,
nlm_owner,
nlm_state,
false,
true);
if (state_status != STATE_SUCCESS) {
res->res_nlm4share.stat =
nlm_convert_state_error(state_status);
} else {
res->res_nlm4share.stat = NLM4_GRANTED;
}
/* Release the NLM Client and NLM Owner references we have */
dec_nsm_client_ref(nsm_client);
dec_nlm_client_ref(nlm_client);
dec_state_owner_ref(nlm_owner);
obj->obj_ops->put_ref(obj);
dec_nlm_state_ref(nlm_state);
LogDebug(COMPONENT_NLM, "REQUEST RESULT: NLM4_UNSHARE %s",
lock_result_str(res->res_nlm4share.stat));
return NFS_REQ_OK;
}
int nlm4_Share(nfs_arg_t *args, struct svc_req *req, nfs_res_t *res)
{
nlm4_shareargs *arg = &args->arg_nlm4_share;
struct fsal_obj_handle *obj;
state_status_t state_status = STATE_SUCCESS;
char buffer[MAXNETOBJ_SZ * 2];
state_nsm_client_t *nsm_client;
state_nlm_client_t *nlm_client;
state_owner_t *nlm_owner;
state_t *nlm_state;
int rc;
int grace = nfs_in_grace();
/* Indicate if we let FSAL to handle requests during grace. */
bool_t fsal_grace = false;
/* NLM doesn't have a BADHANDLE error, nor can rpc_execute deal with
* responding to an NLM_*_MSG call, so we check here if the export is
* NULL and if so, handle the response.
*/
if (op_ctx->ctx_export == NULL) {
res->res_nlm4share.stat = NLM4_STALE_FH;
LogInfo(COMPONENT_NLM, "INVALID HANDLE: nlm4_Share");
return NFS_REQ_OK;
}
res->res_nlm4share.sequence = 0;
netobj_to_string(&arg->cookie, buffer, 1024);
LogDebug(COMPONENT_NLM,
"REQUEST PROCESSING: Calling nlm4_Share cookie=%s reclaim=%s",
buffer,
arg->reclaim ? "yes" : "no");
copy_netobj(&res->res_nlm4share.cookie, &arg->cookie);
/* Allow only reclaim share request during recovery and visa versa.
* Note: NLM_SHARE is indicated to be non-monitored, however, it does
* have a reclaim flag, so we will honor the reclaim flag if used.
*/
if (grace) {
if (op_ctx->fsal_export->exp_ops.
fs_supports(op_ctx->fsal_export, fso_grace_method))
fsal_grace = true;
if (!fsal_grace && !arg->reclaim) {
res->res_nlm4share.stat = NLM4_DENIED_GRACE_PERIOD;
LogDebug(COMPONENT_NLM,
"REQUEST RESULT: nlm4_Share %s",
lock_result_str(res->res_nlm4share.stat));
return NFS_REQ_OK;
}
} else if (arg->reclaim) {
res->res_nlm4share.stat = NLM4_DENIED_GRACE_PERIOD;
LogDebug(COMPONENT_NLM,
"REQUEST RESULT: nlm4_Share %s",
lock_result_str(res->res_nlm4share.stat));
return NFS_REQ_OK;
}
rc = nlm_process_share_parms(req,
&arg->share,
op_ctx->fsal_export,
&obj,
CARE_NO_MONITOR,
&nsm_client,
&nlm_client,
&nlm_owner,
&nlm_state);
if (rc >= 0) {
/* Present the error back to the client */
res->res_nlm4share.stat = (nlm4_stats) rc;
LogDebug(COMPONENT_NLM,
"REQUEST RESULT: nlm4_Share %s",
lock_result_str(res->res_nlm4share.stat));
return NFS_REQ_OK;
}
state_status = state_nlm_share(obj,
arg->share.access,
arg->share.mode,
nlm_owner,
nlm_state,
grace);
if (state_status != STATE_SUCCESS) {
res->res_nlm4share.stat =
nlm_convert_state_error(state_status);
} else {
res->res_nlm4share.stat = NLM4_GRANTED;
}
/* Release the NLM Client and NLM Owner references we have */
dec_nsm_client_ref(nsm_client);
dec_nlm_client_ref(nlm_client);
dec_state_owner_ref(nlm_owner);
obj->obj_ops.put_ref(obj);
dec_nlm_state_ref(nlm_state);
LogDebug(COMPONENT_NLM, "REQUEST RESULT: nlm4_Share %s",
lock_result_str(res->res_nlm4share.stat));
return NFS_REQ_OK;
}
