int nlm_send_async_res_nlm4(state_nlm_client_t *host, state_async_func_t func,
nfs_res_t *pres)
{
state_async_queue_t *arg = gsh_malloc(sizeof(*arg));
state_nlm_async_data_t *nlm_arg;
state_status_t status;
if (arg != NULL) {
nlm_arg = &arg->state_async_data.state_nlm_async_data;
memset(arg, 0, sizeof(*arg));
arg->state_async_func = func;
nlm_arg->nlm_async_host = host;
nlm_arg->nlm_async_args.nlm_async_res = *pres;
if (!copy_netobj
(&nlm_arg->nlm_async_args.nlm_async_res.res_nlm4.cookie,
&pres->res_nlm4.cookie)) {
LogCrit(COMPONENT_NLM,
"Unable to copy async response file handle");
gsh_free(arg);
return NFS_REQ_DROP;
}
} else {
LogCrit(COMPONENT_NLM, "Unable to allocate async response");
return NFS_REQ_DROP;
}
status = state_async_schedule(arg);
if (status != STATE_SUCCESS) {
gsh_free(arg);
return NFS_REQ_DROP;
}
return NFS_REQ_OK;
}
int nlm_send_async_res_nlm4test(state_nlm_client_t * host,
state_async_func func,
nfs_res_t * pres)
{
state_async_queue_t * arg = (state_async_queue_t *) Mem_Alloc(sizeof(*arg));
state_nlm_async_data_t * nlm_arg;
state_status_t status;
if(arg != NULL)
{
nlm_arg = &arg->state_async_data.state_nlm_async_data;
memset(arg, 0, sizeof(*arg));
arg->state_async_func = func;
nlm_arg->nlm_async_host = host;
nlm_arg->nlm_async_args.nlm_async_res = *pres;
if(!copy_netobj(&nlm_arg->nlm_async_args.nlm_async_res.res_nlm4test.cookie,
&pres->res_nlm4test.cookie))
{
LogFullDebug(COMPONENT_NLM,
"Unable to copy async response file handle");
Mem_Free(arg);
return NFS_REQ_DROP;
}
else if(pres->res_nlm4test.test_stat.stat == NLM4_DENIED)
{
if(!copy_netobj(&nlm_arg->nlm_async_args.nlm_async_res.res_nlm4test.test_stat.nlm4_testrply_u.holder.oh,
&pres->res_nlm4test.test_stat.nlm4_testrply_u.holder.oh))
{
LogFullDebug(COMPONENT_NLM,
"Unable to copy async response oh");
netobj_free(&nlm_arg->nlm_async_args.nlm_async_res.res_nlm4test.cookie);
Mem_Free(arg);
return NFS_REQ_DROP;
}
}
}
else
{
LogFullDebug(COMPONENT_NLM,
"Unable to allocate async response");
return NFS_REQ_DROP;
}
status = state_async_schedule(arg);
if(status != STATE_SUCCESS)
{
netobj_free(&nlm_arg->nlm_async_args.nlm_async_res.res_nlm4test.cookie);
if(pres->res_nlm4test.test_stat.stat == NLM4_DENIED)
netobj_free(&nlm_arg->nlm_async_args.nlm_async_res.res_nlm4test.test_stat.nlm4_testrply_u.holder.oh);
Mem_Free(arg);
return NFS_REQ_DROP;
}
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;
}
