/* retrieve last informations about a handle */
int fsal_posixdb_GetInodeCache(posixfsal_handle_t * p_handle) /* IN/OUT */
{
#ifdef _ENABLE_CACHE_PATH
unsigned int i;
i = hash_cache_path(p_handle->id, p_handle->ts);
/* in the handle in cache ? */
P_r(&cache_array[i].entry_lock);
if(cache_array[i].is_set
&& cache_array[i].handle.id == p_handle->id
&& cache_array[i].handle.ts == p_handle->ts)
{
if(cache_array[i].info_is_set)
{
p_handle->info = cache_array[i].handle.info;
LogDebug(COMPONENT_FSAL, "fsal_posixdb_GetInodeCache(%u, %u)", (unsigned int)(p_handle->id),
(unsigned int)(p_handle->ts));
V_r(&cache_array[i].entry_lock);
return TRUE;
}
}
V_r(&cache_array[i].entry_lock);
#endif
return FALSE;
}
int fsal_posixdb_GetPathCache(posixfsal_handle_t * p_handle, /* IN */
fsal_path_t * p_path /* OUT */ )
{
#ifdef _ENABLE_CACHE_PATH
unsigned int i;
i = hash_cache_path(p_handle->id, p_handle->ts);
/* in the handle in cache ? */
P_r(&cache_array[i].entry_lock);
if(cache_array[i].is_set
&& cache_array[i].handle.id == p_handle->id
&& cache_array[i].handle.ts == p_handle->ts)
{
if(cache_array[i].path_is_set)
{
/* return path it */
memcpy(p_path, &cache_array[i].path, sizeof(fsal_path_t));
V_r(&cache_array[i].entry_lock);
LogDebug(COMPONENT_FSAL, "fsal_posixdb_GetPathCache(%u, %u)=%s",
(unsigned int)p_handle->id, (unsigned int)p_handle->ts,
p_path->path);
return TRUE;
}
}
V_r(&cache_array[i].entry_lock);
#endif
return FALSE;
}
/**
*
* cache_inode_is_dir_empty_WithLock: checks if a directory is empty or not, BUT has lock management.
*
* Checks if a directory is empty or not, BUT has lock management.
*
* @param pentry [IN] entry to be checked (should be of type DIRECTORY)
*
* @return CACHE_INODE_SUCCESS is directory is empty\n
* @return CACHE_INODE_BAD_TYPE is pentry is not of type DIRECTORY\n
* @return CACHE_INODE_DIR_NOT_EMPTY if pentry is not empty
*
*/
cache_inode_status_t cache_inode_is_dir_empty_WithLock(cache_entry_t * pentry)
{
cache_inode_status_t status;
P_r(&pentry->lock);
status = cache_inode_is_dir_empty(pentry);
V_r(&pentry->lock);
return status;
} /* cache_inode_is_dir_empty_WithLock */
static void nfs4_acls_test()
{
int i = 0;
fsal_acl_data_t acldata;
fsal_ace_t *pace = NULL;
fsal_acl_t *pacl = NULL;
fsal_acl_status_t status;
acldata.naces = 3;
acldata.aces = nfs4_ace_alloc(3);
LogDebug(COMPONENT_NFS_V4_ACL, "&acldata.aces = %p", &acldata.aces);
pace = acldata.aces;
for(i = 0; i < 3; i++)
{
pace->type = i;
pace->perm = i;
pace->flag = i;
pace->who.uid = i;
pace++;
}
pacl = nfs4_acl_new_entry(&acldata, &status);
nfs4_acl_entry_inc_ref(pacl);
P_r(&pacl->lock);
LogDebug(COMPONENT_NFS_V4_ACL, "pacl = %p, ref = %u, status = %u", pacl, pacl->ref, status);
V_r(&pacl->lock);
pacl = nfs4_acl_new_entry(&acldata, &status);
nfs4_acl_entry_inc_ref(pacl);
P_r(&pacl->lock);
LogDebug(COMPONENT_NFS_V4_ACL, "re-access: pacl = %p, ref = %u, status = %u", pacl, pacl->ref, status);
V_r(&pacl->lock);
nfs4_acl_release_entry(pacl, &status);
P_r(&pacl->lock);
LogDebug(COMPONENT_NFS_V4_ACL, "release: pacl = %p, ref = %u, status = %u", pacl, pacl->ref, status);
V_r(&pacl->lock);
nfs4_acl_release_entry(pacl, &status);
}
void *thread_reader(void *arg)
{
int duree_sleep = 1;
int nb_iter = NB_ITER;
while(nb_iter > 0)
{
P_r(&lock);
sleep(duree_sleep);
V_r(&lock);
nb_iter -= 1;
}
OkRead = 1; /* Ecriture concurrente ici, mais on s'en fout (pas d'impact) */
return NULL;
} /* thread_writter */
int HashTable_Get(hash_table_t * ht, hash_buffer_t * buffkey, hash_buffer_t * buffval)
{
unsigned int hashval;
struct rbt_node *pn;
struct rbt_head *tete_rbt;
hash_data_t *pdata = NULL;
int rbt_value = 0;
int rc = 0;
/* Sanity check */
if(ht == NULL || buffkey == NULL || buffval == NULL)
return HASHTABLE_ERROR_INVALID_ARGUMENT;
/* Find the RB Tree to be processed */
hashval = (*(ht->parameter.hash_func_key)) (&ht->parameter, buffkey);
tete_rbt = &(ht->array_rbt[hashval]);
/* Seek into the RB Tree */
rbt_value = (*(ht->parameter.hash_func_rbt)) (&ht->parameter, buffkey);
/* Acquire mutex */
P_r(&(ht->array_lock[hashval]));
/* I get the node with this value that is located on the left (first with this value in the rbtree) */
if((rc = Key_Locate(ht, buffkey, hashval, rbt_value, &pn)) != HASHTABLE_SUCCESS)
{
ht->stat_dynamic[hashval].notfound.nb_get += 1;
V_r(&(ht->array_lock[hashval]));
return rc;
}
/* Key was found */
pdata = (hash_data_t *) RBT_OPAQ(pn);
buffval->pdata = pdata->buffval.pdata;
buffval->len = pdata->buffval.len;
ht->stat_dynamic[hashval].ok.nb_get += 1;
/* Release mutex */
V_r(&(ht->array_lock[hashval]));
return HASHTABLE_SUCCESS;
} /* HashTable_Get */
/**
*
* cache_inode_create: creates an entry through the cache.
*
* Creates an entry through the cache.
*
* @param pentry_parent [IN] pointer to the pentry parent
* @param pname [IN] pointer to the name of the object in the destination directory.
* @param type [IN] type of the object to be created.
* @param mode [IN] mode to be used at file creation
* @param pcreate_arg [IN] additional argument for object creation
* @param pattr [OUT] attributes for the new object.
* @param ht [INOUT] hash table used for the cache.
* @param pclient [INOUT] ressource allocated by the client for the nfs management.
* @param pcontext [IN] FSAL credentials
* @param pstatus [OUT] returned status.
*
* @return CACHE_INODE_SUCCESS if operation is a success \n
* @return CACHE_INODE_LRU_ERROR if allocation error occured when validating the entry\n
* @return CACHE_INODE_BAD_TYPE either source or destination have incorrect type\n
* @return CACHE_INODE_ENTRY_EXISTS entry of that name already exists in destination.
*
*/
cache_entry_t *
cache_inode_create(cache_entry_t * pentry_parent,
fsal_name_t * pname,
cache_inode_file_type_t type,
fsal_accessmode_t mode,
cache_inode_create_arg_t * pcreate_arg,
fsal_attrib_list_t * pattr,
hash_table_t * ht,
cache_inode_client_t * pclient,
fsal_op_context_t * pcontext,
cache_inode_status_t * pstatus)
{
cache_entry_t *pentry = NULL;
fsal_status_t fsal_status;
#ifdef _USE_MFSL
mfsl_object_t object_handle;
#else
fsal_handle_t object_handle;
#endif
fsal_attrib_list_t parent_attributes;
fsal_attrib_list_t object_attributes;
fsal_handle_t dir_handle;
cache_inode_fsal_data_t fsal_data;
cache_inode_status_t status;
struct cache_inode_dir_begin__ *dir_begin;
int pnfs_status;
/* Set the return default to CACHE_INODE_SUCCESS */
*pstatus = CACHE_INODE_SUCCESS;
/* stats */
pclient->stat.nb_call_total += 1;
inc_func_call(pclient, CACHE_INODE_CREATE);
/*
* Check if the required type is correct, with this
* function, we manage file, dir and symlink
*/
if(type != REGULAR_FILE && type != DIR_BEGINNING && type != SYMBOLIC_LINK &&
type != SOCKET_FILE && type != FIFO_FILE && type != CHARACTER_FILE &&
type != BLOCK_FILE)
{
*pstatus = CACHE_INODE_BAD_TYPE;
/* stats */
inc_func_err_unrecover(pclient, CACHE_INODE_CREATE);
return NULL;
}
/*
* Check if caller is allowed to perform the operation
*/
status = cache_inode_access(pentry_parent,
FSAL_W_OK, ht,
pclient, pcontext, &status);
if (status != CACHE_INODE_SUCCESS)
{
*pstatus = status;
/* stats */
inc_func_err_unrecover(pclient, CACHE_INODE_CREATE);
/* pentry is a directory */
return NULL;
}
/*
* Check if an entry of the same name exists
*/
pentry = cache_inode_lookup(pentry_parent,
pname, &object_attributes,
ht, pclient, pcontext, pstatus);
if (pentry != NULL)
{
*pstatus = CACHE_INODE_ENTRY_EXISTS;
if(pentry->internal_md.type != type)
{
/*
* Incompatible types, returns NULL
*/
/* stats */
inc_func_err_unrecover(pclient, CACHE_INODE_CREATE);
return NULL;
}
else
{
/* stats */
inc_func_success(pclient, CACHE_INODE_CREATE);
/*
* redondant creation, returned the
* previously created entry
*/
return pentry;
}
}
/*
* At this point, the entry was not found, this means
* that is doesn't exist is FSAL, we can create it
*/
/* Get the lock for the parent */
P_w(&pentry_parent->lock);
if(pentry_parent->internal_md.type == DIR_BEGINNING)
dir_handle = pentry_parent->object.dir_begin.handle;
if(pentry_parent->internal_md.type == DIR_CONTINUE)
{
P_r(&pentry_parent->object.dir_cont.pdir_begin->lock);
dir_handle = pentry_parent->object.dir_cont.pdir_begin->object.dir_begin.handle;
V_r(&pentry_parent->object.dir_cont.pdir_begin->lock);
}
object_attributes.asked_attributes = pclient->attrmask;
switch (type)
{
case REGULAR_FILE:
#ifdef _USE_MFSL
cache_inode_get_attributes(pentry_parent, &parent_attributes);
fsal_status = MFSL_create(&pentry_parent->mobject,
pname, pcontext,
&pclient->mfsl_context,
mode, &object_handle,
&object_attributes, &parent_attributes);
#else
fsal_status = FSAL_create(&dir_handle,
pname, pcontext, mode,
&object_handle, &object_attributes);
#endif
break;
case DIR_BEGINNING:
#ifdef _USE_MFSL
cache_inode_get_attributes(pentry_parent, &parent_attributes);
fsal_status = MFSL_mkdir(&pentry_parent->mobject,
pname, pcontext,
&pclient->mfsl_context,
mode, &object_handle,
&object_attributes, &parent_attributes);
#else
fsal_status = FSAL_mkdir(&dir_handle,
pname, pcontext, mode,
&object_handle, &object_attributes);
#endif
break;
case SYMBOLIC_LINK:
#ifdef _USE_MFSL
cache_inode_get_attributes(pentry_parent, &object_attributes);
fsal_status = MFSL_symlink(&pentry_parent->mobject,
pname, &pcreate_arg->link_content,
pcontext, &pclient->mfsl_context,
mode, &object_handle, &object_attributes);
#else
fsal_status = FSAL_symlink(&dir_handle,
pname, &pcreate_arg->link_content,
pcontext, mode, &object_handle,
&object_attributes);
#endif
break;
case SOCKET_FILE:
#ifdef _USE_MFSL
fsal_status = MFSL_mknode(&pentry_parent->mobject, pname,
pcontext, &pclient->mfsl_context, mode,
FSAL_TYPE_SOCK, NULL, /* no dev_t needed for socket file */
&object_handle, &object_attributes);
#else
fsal_status = FSAL_mknode(&dir_handle, pname, pcontext,
mode, FSAL_TYPE_SOCK, NULL, /* no dev_t needed for socket file */
&object_handle, &object_attributes);
#endif
break;
case FIFO_FILE:
#ifdef _USE_MFSL
fsal_status = MFSL_mknode(&pentry_parent->mobject, pname,
pcontext, &pclient->mfsl_context,
mode, FSAL_TYPE_FIFO, NULL, /* no dev_t needed for FIFO file */
&object_handle, &object_attributes);
#else
fsal_status = FSAL_mknode(&dir_handle, pname, pcontext,
mode, FSAL_TYPE_FIFO, NULL, /* no dev_t needed for FIFO file */
&object_handle, &object_attributes);
#endif
break;
case BLOCK_FILE:
#ifdef _USE_MFSL
fsal_status = MFSL_mknode(&pentry_parent->mobject,
pname, pcontext,
&pclient->mfsl_context,
mode, FSAL_TYPE_BLK,
&pcreate_arg->dev_spec,
&object_handle, &object_attributes);
#else
fsal_status = FSAL_mknode(&dir_handle,
pname, pcontext,
mode, FSAL_TYPE_BLK,
&pcreate_arg->dev_spec,
&object_handle, &object_attributes);
#endif
break;
case CHARACTER_FILE:
#ifdef _USE_MFSL
fsal_status = MFSL_mknode(&pentry_parent->mobject,
pname, pcontext,
&pclient->mfsl_context,
mode, FSAL_TYPE_CHR,
&pcreate_arg->dev_spec,
&object_handle, &object_attributes);
#else
fsal_status = FSAL_mknode(&dir_handle,
pname, pcontext,
mode, FSAL_TYPE_CHR,
&pcreate_arg->dev_spec,
&object_handle, &object_attributes);
#endif
break;
default:
/* we should never go there */
*pstatus = CACHE_INODE_INCONSISTENT_ENTRY;
V_w(&pentry_parent->lock);
/* stats */
inc_func_err_unrecover(pclient, CACHE_INODE_CREATE);
return NULL;
break;
}
/* Check for the result */
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
V_w(&pentry_parent->lock);
if(fsal_status.major == ERR_FSAL_STALE)
{
cache_inode_status_t kill_status;
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_create: Stale FSAL File Handle "
"detected for pentry = %p",
pentry_parent);
cache_inode_kill_entry(pentry_parent, ht,
pclient, &kill_status);
if(kill_status != CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE, "cache_inode_create: "
"Could not kill entry %p, status = %u",
pentry_parent, kill_status);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
/* stats */
inc_func_err_unrecover(pclient, CACHE_INODE_CREATE);
return NULL;
}
else
{
#ifdef _USE_MFSL
fsal_data.handle = object_handle.handle;
#else
fsal_data.handle = object_handle;
#endif
fsal_data.cookie = DIR_START;
pentry = cache_inode_new_entry(&fsal_data, &object_attributes,
type, pcreate_arg, NULL,
ht, pclient, pcontext,
TRUE, /* This is a creation and not a population */
pstatus);
if (pentry == NULL)
{
*pstatus = CACHE_INODE_INSERT_ERROR;
V_w(&pentry_parent->lock);
/* stats */
inc_func_err_unrecover(pclient, CACHE_INODE_CREATE);
return NULL;
}
#ifdef _USE_MFSL
/* Copy the MFSL object to the cache */
memcpy((char *)&(pentry->mobject),
(char *)&object_handle, sizeof(mfsl_object_t));
#endif
/* Add this entry to the directory */
status = cache_inode_add_cached_dirent(pentry_parent,
pname, pentry,
NULL, ht,
pclient, pcontext,
pstatus);
if (status != CACHE_INODE_SUCCESS)
{
V_w(&pentry_parent->lock);
/* stats */
inc_func_err_unrecover(pclient, CACHE_INODE_CREATE);
return NULL;
}
}
#ifdef _USE_PNFS
if((type == REGULAR_FILE) &&
(pcreate_arg != NULL) &&
(pcreate_arg->use_pnfs == TRUE))
{
pnfs_status = pnfs_create_ds_file(&pclient->pnfsclient,
pentry->object.file.attributes.fileid,
&pentry->object.file.pnfs_file.ds_file);
if (pnfs_status != NFS4_OK)
{
V_w(&pentry_parent->lock);
LogDebug(COMPONENT_CACHE_INODE, "OPEN PNFS CREATE DS FILE : Error %u",
pnfs_status);
*pstatus = CACHE_INODE_IO_ERROR;
return NULL;
}
}
#endif
/* Update the parent cached attributes */
if(pentry_parent->internal_md.type == DIR_BEGINNING)
dir_begin = &pentry_parent->object.dir_begin;
else
dir_begin = &pentry_parent->object.dir_cont.pdir_begin->object.dir_begin;
dir_begin->attributes.mtime.seconds = time(NULL);
dir_begin->attributes.mtime.nseconds = 0;
dir_begin->attributes.ctime = dir_begin->attributes.mtime;
/*
* if the created object is a directory, it contains a link
* to its parent : '..'. Thus the numlink attr must be increased.
*/
if(type == DIR_BEGINNING)
{
dir_begin->attributes.numlinks++;
}
/* Get the attributes in return */
*pattr = object_attributes;
/* valid the parent */
*pstatus = cache_inode_valid(pentry_parent,
CACHE_INODE_OP_SET,
pclient);
/* release the lock for the parent */
V_w(&pentry_parent->lock);
/* stat */
if(*pstatus != CACHE_INODE_SUCCESS)
inc_func_err_retryable(pclient, CACHE_INODE_CREATE);
else
inc_func_success(pclient, CACHE_INODE_CREATE);
return pentry;
}
/**
*
* cache_inode_lookupp_sw: looks up (and caches) the parent directory for a directory. A switches tells is mutex are use.
*
* Looks up (and caches) the parent directory for a directory.
*
* @param pentry [IN] entry whose parent is to be obtained.
* @param ht [IN] hash table used for the cache, unused in this call.
* @param pclient [INOUT] ressource allocated by the client for the nfs management.
* @param pcontext [IN] FSAL credentials
* @param pstatus [OUT] returned status.
* @param use_mutex [IN] if TRUE mutex are use, not otherwise.
*
* @return CACHE_INODE_SUCCESS if operation is a success \n
* @return CACHE_INODE_LRU_ERROR if allocation error occured when validating the entry
*
*/
cache_entry_t *cache_inode_lookupp_sw(cache_entry_t * pentry,
hash_table_t * ht,
cache_inode_client_t * pclient,
fsal_op_context_t * pcontext,
cache_inode_status_t * pstatus, int use_mutex)
{
cache_entry_t *pentry_parent = NULL;
fsal_status_t fsal_status;
fsal_attrib_list_t object_attributes;
cache_inode_fsal_data_t fsdata;
/* Set the return default to CACHE_INODE_SUCCESS */
*pstatus = CACHE_INODE_SUCCESS;
/* stats */
pclient->stat.nb_call_total += 1;
pclient->stat.func_stats.nb_call[CACHE_INODE_LOOKUP] += 1;
/* The entry should be a directory */
if(use_mutex)
P_r(&pentry->lock);
if(pentry->internal_md.type != DIR_BEGINNING)
{
if(use_mutex)
V_r(&pentry->lock);
*pstatus = CACHE_INODE_BAD_TYPE;
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_LOOKUPP] += 1;
return NULL;
}
/* Renew the entry (to avoid having it being garbagged */
if(cache_inode_renew_entry(pentry, NULL, ht, pclient, pcontext, pstatus) !=
CACHE_INODE_SUCCESS)
{
pclient->stat.func_stats.nb_err_retryable[CACHE_INODE_GETATTR] += 1;
return NULL;
}
/* Does the parent belongs to the cache ? */
if(pentry->parent_list && pentry->parent_list->parent)
{
/* YES, the parent is cached, use the pentry that we have found */
pentry_parent = pentry->parent_list->parent;
}
else
{
/* NO, the parent is not cached, query FSAL to get it and cache the result */
object_attributes.asked_attributes = pclient->attrmask;
fsal_status =
FSAL_lookup(&pentry->object.dir_begin.handle, (fsal_name_t *) & FSAL_DOT_DOT,
pcontext, &fsdata.handle, &object_attributes);
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
if(use_mutex)
V_r(&pentry->lock);
/* Stale File Handle to be detected and managed */
if(fsal_status.major == ERR_FSAL_STALE)
{
cache_inode_status_t kill_status;
LogEvent(COMPONENT_CACHE_INODE,"cache_inode_lookupp: Stale FSAL FH detected for pentry %p",
pentry);
if(cache_inode_kill_entry(pentry, ht, pclient, &kill_status) !=
CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE,"cache_inode_remove: Could not kill entry %p, status = %u",
pentry, kill_status);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_LOOKUPP] += 1;
return NULL;
}
/* Call cache_inode_get to populate the cache with the parent entry */
fsdata.cookie = 0;
if((pentry_parent = cache_inode_get(&fsdata,
&object_attributes,
ht, pclient, pcontext, pstatus)) == NULL)
{
if(use_mutex)
V_r(&pentry->lock);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_LOOKUPP] += 1;
return NULL;
}
}
*pstatus = cache_inode_valid(pentry_parent, CACHE_INODE_OP_GET, pclient);
if(use_mutex)
V_r(&pentry->lock);
/* stat */
if(*pstatus != CACHE_INODE_SUCCESS)
pclient->stat.func_stats.nb_err_retryable[CACHE_INODE_LOOKUPP] += 1;
else
pclient->stat.func_stats.nb_success[CACHE_INODE_LOOKUPP] += 1;
return pentry_parent;
} /* cache_inode_lookupp_sw */
/**
*
* cache_inode_link: hardlinks a pentry to another.
*
* Hard links a pentry to another. This is basically a equivalent of FSAL_link in the cache inode layer.
*
* @param pentry_src [IN] entry pointer the entry to be linked. This can't be a directory.
* @param pentry_dir_dest [INOUT] entry pointer for the destination directory in which the link will be created.
* @param plink_name [IN] pointer to the name of the object in the destination directory.
* @param pattr [OUT] attributes for the linked attributes after the operation.
* @param ht [INOUT] hash table used for the cache.
* @param pclient [INOUT] ressource allocated by the client for the nfs management.
* @param pcontext [IN] FSAL credentials
* @param pstatus [OUT] returned status.
*
* @return CACHE_INODE_SUCCESS if operation is a success \n
* @return CACHE_INODE_LRU_ERROR if allocation error occured when validating the entry\n
* @return CACHE_INODE_BAD_TYPE either source or destination have incorrect type\n
* @return CACHE_INODE_ENTRY_EXISTS entry of that name already exists in destination.
*
*/
cache_inode_status_t cache_inode_link(cache_entry_t * pentry_src,
cache_entry_t * pentry_dir_dest,
fsal_name_t * plink_name,
fsal_attrib_list_t * pattr,
hash_table_t * ht,
cache_inode_client_t * pclient,
fsal_op_context_t * pcontext,
cache_inode_status_t * pstatus)
{
fsal_status_t fsal_status;
fsal_handle_t handle_src;
fsal_handle_t handle_dest;
fsal_attrib_list_t link_attributes;
#ifdef _USE_MFSL
fsal_attrib_list_t dirdest_attributes;
#endif
cache_inode_status_t status;
cache_entry_t *pentry_lookup = NULL;
fsal_attrib_list_t lookup_attributes;
fsal_size_t save_size = 0;
fsal_size_t save_spaceused = 0;
fsal_time_t save_mtime = {
.seconds = 0,
.nseconds = 0
};
fsal_accessflags_t access_mask = 0;
/* Set the return default to CACHE_INODE_SUCCESS */
*pstatus = CACHE_INODE_SUCCESS;
/* stats */
pclient->stat.nb_call_total += 1;
pclient->stat.func_stats.nb_call[CACHE_INODE_LINK] += 1;
/* Is the destination a directory ? */
if(pentry_dir_dest->internal_md.type != DIR_BEGINNING &&
pentry_dir_dest->internal_md.type != DIR_CONTINUE)
{
/* Bad type .... */
*pstatus = CACHE_INODE_BAD_TYPE;
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_LINK] += 1;
return *pstatus;
}
/* Check if caller is allowed to perform the operation */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
if((status = cache_inode_access(pentry_dir_dest,
access_mask,
ht, pclient, pcontext, &status)) != CACHE_INODE_SUCCESS)
{
*pstatus = status;
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_LINK] += 1;
/* pentry is a directory */
return *pstatus;
}
/* Check if an entry of the same name doesn't exist in the destination directory */
if((pentry_lookup = cache_inode_lookup(pentry_dir_dest,
plink_name,
&lookup_attributes,
ht, pclient, pcontext, pstatus)) != NULL)
{
/* There exists such an entry... */
*pstatus = CACHE_INODE_ENTRY_EXISTS;
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_LINK] += 1;
return *pstatus;
}
/* The pentry to be hardlinked can't be a DIR_BEGINNING or a DIR_CONTINUE */
if(pentry_src->internal_md.type == DIR_BEGINNING ||
pentry_src->internal_md.type == DIR_CONTINUE)
{
/* Bad type .... */
*pstatus = CACHE_INODE_BAD_TYPE;
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_LINK] += 1;
return *pstatus;
}
#if 0
if( pentry_src->internal_md.type == REGULAR_FILE )
printf( "=== link === %p | inode=%llu\n", pentry_src, pentry_src->object.file.attributes.fileid ) ;
#endif
/* At this point, we know that the entry does not exist in destination directory, we know that the
* destination is actually a directory and that the source is no directory */
/* Lock the source */
P_w(&pentry_src->lock);
/* Lock the target dir */
P_w(&pentry_dir_dest->lock);
/* Get the handles */
switch (pentry_src->internal_md.type)
{
case REGULAR_FILE:
handle_src = pentry_src->object.file.handle;
break;
case SYMBOLIC_LINK:
handle_src = pentry_src->object.symlink.handle;
break;
case FS_JUNCTION:
case DIR_BEGINNING:
handle_src = pentry_src->object.dir_begin.handle;
break;
case DIR_CONTINUE:
/* lock the related dir_begin (dir begin are garbagge collected AFTER their related dir_cont)
* this means that if a DIR_CONTINUE exists, its pdir pointer is not endless */
P_r(&pentry_src->object.dir_cont.pdir_begin->lock);
handle_src = pentry_src->object.dir_cont.pdir_begin->object.dir_begin.handle;
V_r(&pentry_src->object.dir_cont.pdir_begin->lock);
break;
case CHARACTER_FILE:
case BLOCK_FILE:
case SOCKET_FILE:
case FIFO_FILE:
handle_src = pentry_src->object.special_obj.handle;
break;
case UNASSIGNED:
case RECYCLED:
LogCrit(COMPONENT_CACHE_INODE,
"WARNING: unknown source pentry type: internal_md.type=%d, line %d in file %s",
pentry_src->internal_md.type, __LINE__, __FILE__);
*pstatus = CACHE_INODE_BAD_TYPE;
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_LINK] += 1;
return *pstatus;
}
switch (pentry_dir_dest->internal_md.type)
{
case FS_JUNCTION:
case DIR_BEGINNING:
handle_dest = pentry_dir_dest->object.dir_begin.handle;
break;
case DIR_CONTINUE:
/* lock the related dir_begin (dir begin are garbagge collected AFTER their related dir_cont)
* this means that if a DIR_CONTINUE exists, its pdir pointer is not endless */
P_r(&pentry_dir_dest->object.dir_cont.pdir_begin->lock);
handle_dest = pentry_src->object.dir_cont.pdir_begin->object.dir_begin.handle;
V_r(&pentry_dir_dest->object.dir_cont.pdir_begin->lock);
break;
default:
LogCrit(COMPONENT_CACHE_INODE,
"WARNING: unknown source pentry type: internal_md.type=%d, line %d in file %s",
pentry_src->internal_md.type, __LINE__, __FILE__);
*pstatus = CACHE_INODE_BAD_TYPE;
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_LINK] += 1;
return *pstatus;
}
/* If object is a data cached regular file, keeps it mtime and size, STEP 1 */
if((pentry_src->internal_md.type == REGULAR_FILE)
&& (pentry_src->object.file.pentry_content != NULL))
{
save_mtime = pentry_src->object.file.attributes.mtime;
save_size = pentry_src->object.file.attributes.filesize;
save_spaceused = pentry_src->object.file.attributes.spaceused;
}
/* Do the link at FSAL level */
link_attributes.asked_attributes = pclient->attrmask;
#ifdef _USE_MFSL
cache_inode_get_attributes(pentry_src, &link_attributes);
cache_inode_get_attributes(pentry_dir_dest, &dirdest_attributes);
fsal_status =
MFSL_link(&pentry_src->mobject, &pentry_dir_dest->mobject, plink_name, pcontext,
&pclient->mfsl_context, &link_attributes, NULL);
#else
fsal_status =
FSAL_link(&handle_src, &handle_dest, plink_name, pcontext, &link_attributes);
#endif
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
V_w(&pentry_dir_dest->lock);
V_w(&pentry_src->lock);
if(fsal_status.major == ERR_FSAL_STALE)
{
cache_inode_status_t kill_status;
fsal_status_t getattr_status;
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_link: Stale FSAL File Handle detected for at least one in pentry = %p and pentry = %p",
pentry_src, pentry_dir_dest);
/* Use FSAL_getattrs to find which entry is staled */
getattr_status = FSAL_getattrs(&handle_src, pcontext, &link_attributes);
if(getattr_status.major == ERR_FSAL_ACCESS)
{
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_link: Stale FSAL File Handle detected for pentry = %p",
pentry_src);
if(cache_inode_kill_entry(pentry_src, ht, pclient, &kill_status) !=
CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_link: Could not kill entry %p, status = %u",
pentry_src, kill_status);
}
getattr_status = FSAL_getattrs(&handle_dest, pcontext, &link_attributes);
if(getattr_status.major == ERR_FSAL_ACCESS)
{
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_link: Stale FSAL File Handle detected for pentry = %p",
pentry_dir_dest);
if(cache_inode_kill_entry(pentry_dir_dest, ht, pclient, &kill_status) !=
CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_link: Could not kill entry %p, status = %u",
pentry_dir_dest, kill_status);
}
}
*pstatus = CACHE_INODE_FSAL_ESTALE;
return *pstatus;
}
/* If object is a data cached regular file, keeps it mtime and size, STEP 2 */
if((pentry_src->internal_md.type == REGULAR_FILE)
&& (pentry_src->object.file.pentry_content != NULL))
{
link_attributes.mtime = save_mtime;
link_attributes.filesize = save_size;
link_attributes.spaceused = save_spaceused;
}
/* Update cached attributes */
cache_inode_set_attributes(pentry_src, &link_attributes);
/* Add the new entry in the destination directory */
if(cache_inode_add_cached_dirent(pentry_dir_dest,
plink_name,
pentry_src,
NULL,
ht, pclient, pcontext, &status) != CACHE_INODE_SUCCESS)
{
V_w(&pentry_dir_dest->lock);
V_w(&pentry_src->lock);
return *pstatus;
}
/* Regular exit */
/* return the attributes */
*pattr = link_attributes;
/* Validate the entries */
*pstatus = cache_inode_valid(pentry_src, CACHE_INODE_OP_SET, pclient);
/* Release the target dir */
V_w(&pentry_dir_dest->lock);
/* Release the source */
V_w(&pentry_src->lock);
/* stats */
if(*pstatus != CACHE_INODE_SUCCESS)
pclient->stat.func_stats.nb_err_retryable[CACHE_INODE_LINK] += 1;
else
pclient->stat.func_stats.nb_success[CACHE_INODE_LINK] += 1;
return *pstatus;
}
/**
*
* cache_inode_setattrs: set the attributes for an entry located in the cache by its address.
*
* Sets the attributes for an entry located in the cache by its address. Attributes are provided
* with compliance to the underlying FSAL semantics. Attributes that are set are returned in "*pattr".
*
* @param pentry_parent [IN] entry for the parent directory to be managed.
* @param pattr [INOUT] attributes for the entry that we have found. Out: attributes set.
* @param ht [INOUT] hash table used for the cache, unused in this call.
* @param pclient [INOUT] ressource allocated by the client for the nfs management.
* @param pcontext [IN] FSAL credentials
* @param pstatus [OUT] returned status.
*
* @return CACHE_INODE_SUCCESS if operation is a success \n
* @return CACHE_INODE_LRU_ERROR if allocation error occured when validating the entry
*
*/
cache_inode_status_t cache_inode_setattr(cache_entry_t * pentry, fsal_attrib_list_t * pattr, hash_table_t * ht, /* Unused, kept for protototype's homogeneity */
cache_inode_client_t * pclient,
fsal_op_context_t * pcontext,
cache_inode_status_t * pstatus)
{
fsal_handle_t *pfsal_handle = NULL;
fsal_status_t fsal_status;
fsal_attrib_list_t *p_object_attributes = NULL;
fsal_attrib_list_t result_attributes;
fsal_attrib_list_t truncate_attributes;
/* Set the return default to CACHE_INODE_SUCCESS */
*pstatus = CACHE_INODE_SUCCESS;
/* stat */
pclient->stat.nb_call_total += 1;
pclient->stat.func_stats.nb_call[CACHE_INODE_SETATTR] += 1;
/* Lock the entry */
P_w(&pentry->lock);
switch (pentry->internal_md.type)
{
case REGULAR_FILE:
pfsal_handle = &pentry->object.file.handle;
break;
case SYMBOLIC_LINK:
pfsal_handle = &pentry->object.symlink.handle;
break;
case FS_JUNCTION:
case DIR_BEGINNING:
pfsal_handle = &pentry->object.dir_begin.handle;
break;
case DIR_CONTINUE:
/* lock the related dir_begin (dir begin are garbagge collected AFTER their related dir_cont)
* this means that if a DIR_CONTINUE exists, its pdir pointer is not endless */
P_r(&pentry->object.dir_cont.pdir_begin->lock);
pfsal_handle = &pentry->object.dir_cont.pdir_begin->object.dir_begin.handle;
V_r(&pentry->object.dir_cont.pdir_begin->lock);
break;
case CHARACTER_FILE:
case BLOCK_FILE:
case SOCKET_FILE:
case FIFO_FILE:
pfsal_handle = &pentry->object.special_obj.handle;
break;
case UNASSIGNED:
case RECYCLED:
LogCrit(COMPONENT_CACHE_INODE,
"WARNING: unknown source pentry type: internal_md.type=%d, line %d in file %s",
pentry->internal_md.type, __LINE__, __FILE__);
*pstatus = CACHE_INODE_BAD_TYPE;
return *pstatus;
}
/* Call FSAL to set the attributes */
/* result_attributes.asked_attributes = pattr->asked_attributes ; */
/* mod Th.Leibovici on 2006/02/13
* We ask back all standard attributes, in case they have been modified
* by another program (pftp, rcpd...)
*/
result_attributes.asked_attributes = pclient->attrmask;
/* end of mod */
#ifdef _USE_MFSL
fsal_status =
MFSL_setattrs(&pentry->mobject, pcontext, &pclient->mfsl_context, pattr,
&result_attributes, NULL);
#else
cache_inode_get_attributes(pentry, &result_attributes);
fsal_status = FSAL_setattrs(pfsal_handle, pcontext, pattr, &result_attributes);
#endif
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
V_w(&pentry->lock);
/* stat */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_SETATTR] += 1;
if(fsal_status.major == ERR_FSAL_STALE)
{
cache_inode_status_t kill_status;
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_setattr: Stale FSAL File Handle detected for pentry = %p",
pentry);
if(cache_inode_kill_entry(pentry, ht, pclient, &kill_status) !=
CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_setattr: Could not kill entry %p, status = %u",
pentry, kill_status);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
return *pstatus;
}
if(pattr->asked_attributes & FSAL_ATTR_SIZE)
{
truncate_attributes.asked_attributes = pclient->attrmask;
fsal_status = FSAL_truncate(pfsal_handle,
pcontext, pattr->filesize, NULL, &truncate_attributes);
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
V_w(&pentry->lock);
/* stat */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_SETATTR] += 1;
if(fsal_status.major == ERR_FSAL_STALE)
{
cache_inode_status_t kill_status;
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_setattr: Stale FSAL File Handle detected for pentry = %p",
pentry);
if(cache_inode_kill_entry(pentry, ht, pclient, &kill_status) !=
CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_setattr: Could not kill entry %p, status = %u",
pentry, kill_status);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
return *pstatus;
}
}
/* Keep the new attribute in cache */
switch (pentry->internal_md.type)
{
case REGULAR_FILE:
p_object_attributes = &(pentry->object.file.attributes);
break;
case SYMBOLIC_LINK:
p_object_attributes = &(pentry->object.symlink.attributes);
break;
case FS_JUNCTION:
case DIR_BEGINNING:
p_object_attributes = &(pentry->object.dir_begin.attributes);
break;
case DIR_CONTINUE:
/* lock the related dir_begin (dir begin are garbagge collected AFTER their related dir_cont)
* this means that if a DIR_CONTINUE exists, its pdir pointer is not endless */
P_r(&pentry->object.dir_cont.pdir_begin->lock);
p_object_attributes =
&(pentry->object.dir_cont.pdir_begin->object.dir_begin.attributes);
V_r(&pentry->object.dir_cont.pdir_begin->lock);
break;
case CHARACTER_FILE:
case BLOCK_FILE:
case SOCKET_FILE:
case FIFO_FILE:
p_object_attributes = &(pentry->object.special_obj.attributes);
break;
case UNASSIGNED:
case RECYCLED:
LogCrit(COMPONENT_CACHE_INODE,
"WARNING: unknown source pentry type: internal_md.type=%d, line %d in file %s",
pentry->internal_md.type, __LINE__, __FILE__);
*pstatus = CACHE_INODE_BAD_TYPE;
return *pstatus;
}
/* Update the cached attributes */
if((result_attributes.asked_attributes & FSAL_ATTR_SIZE) ||
(result_attributes.asked_attributes & FSAL_ATTR_SPACEUSED))
{
if(pentry->internal_md.type == REGULAR_FILE)
{
if(pentry->object.file.pentry_content == NULL)
{
/* Operation on a non data cached file */
p_object_attributes->filesize = result_attributes.filesize;
p_object_attributes->spaceused = result_attributes.filesize; /* Unclear hook here. BUGAZOMEU */
}
else
{
/* Data cached file */
/* Do not set the p_object_attributes->filesize and p_object_attributes->spaceused in this case
* This will lead to a situation where (for example) untar-ing a file will produced invalid files
* with a size of 0 despite the fact that they are not empty */
LogFullDebug(COMPONENT_CACHE_INODE,
"cache_inode_setattr with FSAL_ATTR_SIZE on data cached entry");
}
}
else if(pattr->asked_attributes & FSAL_ATTR_SIZE)
LogCrit(COMPONENT_CACHE_INODE,
"WARNING !!! cache_inode_setattr tried to set size on a non REGULAR_FILE type=%d",
pentry->internal_md.type);
}
if(result_attributes.asked_attributes &
(FSAL_ATTR_MODE | FSAL_ATTR_OWNER | FSAL_ATTR_GROUP))
{
if(result_attributes.asked_attributes & FSAL_ATTR_MODE)
p_object_attributes->mode = result_attributes.mode;
if(result_attributes.asked_attributes & FSAL_ATTR_OWNER)
p_object_attributes->owner = result_attributes.owner;
if(result_attributes.asked_attributes & FSAL_ATTR_GROUP)
p_object_attributes->group = result_attributes.group;
}
if(result_attributes.asked_attributes &
(FSAL_ATTR_ATIME | FSAL_ATTR_CTIME | FSAL_ATTR_MTIME))
{
if(result_attributes.asked_attributes & FSAL_ATTR_ATIME)
p_object_attributes->atime = result_attributes.atime;
if(result_attributes.asked_attributes & FSAL_ATTR_CTIME)
p_object_attributes->ctime = result_attributes.ctime;
if(result_attributes.asked_attributes & FSAL_ATTR_MTIME)
p_object_attributes->mtime = result_attributes.mtime;
}
#ifdef _USE_NFS4_ACL
if(result_attributes.asked_attributes & FSAL_ATTR_ACL)
{
LogDebug(COMPONENT_CACHE_INODE, "cache_inode_setattr: old acl = %p, new acl = %p",
p_object_attributes->acl, result_attributes.acl);
/* Release previous acl entry. */
if(p_object_attributes->acl)
{
fsal_acl_status_t status;
nfs4_acl_release_entry(p_object_attributes->acl, &status);
if(status != NFS_V4_ACL_SUCCESS)
LogEvent(COMPONENT_CACHE_INODE, "cache_inode_setattr: Failed to release old acl:"
" status = %d", status);
}
/* Update with new acl entry. */
p_object_attributes->acl = result_attributes.acl;
}
#endif /* _USE_NFS4_ACL */
/* Return the attributes as set */
*pattr = *p_object_attributes;
/* validate the entry */
*pstatus = cache_inode_valid(pentry, CACHE_INODE_OP_SET, pclient);
/* Release the entry */
V_w(&pentry->lock);
/* stat */
if(*pstatus != CACHE_INODE_SUCCESS)
pclient->stat.func_stats.nb_err_retryable[CACHE_INODE_SETATTR] += 1;
else
pclient->stat.func_stats.nb_success[CACHE_INODE_SETATTR] += 1;
return *pstatus;
} /* cache_inode_setattr */
/* Get a possible full path for an entry */
int NamespacePath(ino_t entry, dev_t dev, unsigned int gen, char *path)
{
fsnode_t *p_node;
int rc;
char tmp_path[FSAL_MAX_PATH_LEN];
inode_t curr_inode;
/* initialize paths */
path[0] = '\0';
tmp_path[0] = '\0';
/* lock the namespace read-only */
P_r(&ns_lock);
curr_inode.inum = entry;
curr_inode.dev = dev;
curr_inode.generation = gen;
do
{
/* get entry from hash */
p_node = h_get_node(curr_inode.inum, curr_inode.dev, &rc);
if(!p_node)
{
V_r(&ns_lock);
if(rc == HASHTABLE_ERROR_NO_SUCH_KEY)
{
LogFullDebug(COMPONENT_FSAL, "namespace: %lX.%ld not found", (unsigned long)dev,
(unsigned long)entry);
return ENOENT;
}
else
return EFAULT;
}
else if(p_node->inode.generation != curr_inode.generation)
{
V_r(&ns_lock);
return ESTALE;
}
if(!p_node->parent_list)
{
/* this is the root entry, just add '/' at the begining and return */
LogFullDebug(COMPONENT_FSAL, "namespace: root entry reached");
snprintf(path, FSAL_MAX_PATH_LEN, "/%s", tmp_path);
break;
}
else if(path[0] == '\0')
{
/* nothing in path for the moment, just copy entry name in it */
strncpy(path, p_node->parent_list->name, FSAL_MAX_NAME_LEN);
curr_inode = p_node->parent_list->parent;
}
else
{
/* this is a parent dir, path is now <dirname>/<subpath> */
snprintf(path, FSAL_MAX_PATH_LEN, "%s/%s", p_node->parent_list->name, tmp_path);
LogFullDebug(COMPONENT_FSAL, "lookup peer found: (%lX.%ld,%s)",
p_node->parent_list->parent.dev,
p_node->parent_list->parent.inum, p_node->parent_list->name);
/* loop detection */
if((curr_inode.inum == p_node->parent_list->parent.inum)
&& (curr_inode.dev == p_node->parent_list->parent.dev))
{
LogCrit(COMPONENT_FSAL,
"NAMESPACE MANAGER: loop detected in namespace: %lX.%ld/%s = %lX.%ld",
p_node->parent_list->parent.dev, p_node->parent_list->parent.inum,
p_node->parent_list->name, curr_inode.dev, curr_inode.inum);
V_r(&ns_lock);
return ELOOP;
}
curr_inode = p_node->parent_list->parent;
}
/* backup path to tmp_path for next loop */
strcpy(tmp_path, path);
}
while(1);
LogFullDebug(COMPONENT_FSAL, "inode=%lX.%ld (gen %u), path='%s'", dev, entry, gen, path);
/* reverse lookup succeeded */
V_r(&ns_lock);
return 0;
}
/**
*
* cache_inode_getattr: Gets the attributes for a cached entry.
*
* Gets the attributes for a cached entry. The FSAL attributes are kept in a structure when the entry
* is added to the cache.
*
* @param pentry [IN] entry to be managed.
* @param pattr [OUT] pointer to the results
* @param ht [IN] hash table used for the cache, unused in this call.
* @param pclient [INOUT] ressource allocated by the client for the nfs management.
* @param pcontext [IN] FSAL credentials
* @param pstatus [OUT] returned status.
*
* @return CACHE_INODE_SUCCESS if operation is a success \n
* @return CACHE_INODE_LRU_ERROR if allocation error occured when validating the entry
*
*/
cache_inode_status_t
cache_inode_getattr(cache_entry_t * pentry,
fsal_attrib_list_t * pattr,
hash_table_t * ht, /* Unused, kept for protototype's homogeneity */
cache_inode_client_t * pclient,
fsal_op_context_t * pcontext,
cache_inode_status_t * pstatus)
{
cache_inode_status_t status;
fsal_handle_t *pfsal_handle = NULL;
fsal_status_t fsal_status;
/* sanity check */
if(pentry == NULL || pattr == NULL ||
ht == NULL || pclient == NULL || pcontext == NULL)
{
*pstatus = CACHE_INODE_INVALID_ARGUMENT;
LogDebug(COMPONENT_CACHE_INODE,
"cache_inode_getattr: returning CACHE_INODE_INVALID_ARGUMENT because of bad arg");
return *pstatus;
}
/* Set the return default to CACHE_INODE_SUCCESS */
*pstatus = CACHE_INODE_SUCCESS;
/* stats */
pclient->stat.nb_call_total += 1;
inc_func_call(pclient, CACHE_INODE_GETATTR);
/* Lock the entry */
P_w(&pentry->lock);
status = cache_inode_renew_entry(pentry, pattr, ht,
pclient, pcontext, pstatus);
if(status != CACHE_INODE_SUCCESS)
{
V_w(&pentry->lock);
inc_func_err_retryable(pclient, CACHE_INODE_GETATTR);
LogFullDebug(COMPONENT_CACHE_INODE,
"cache_inode_getattr: returning %d(%s) from cache_inode_renew_entry",
*pstatus, cache_inode_err_str(*pstatus));
return *pstatus;
}
/* RW Lock goes for writer to reader */
rw_lock_downgrade(&pentry->lock);
cache_inode_get_attributes(pentry, pattr);
if(FSAL_TEST_MASK(pattr->asked_attributes,
FSAL_ATTR_RDATTR_ERR))
{
switch (pentry->internal_md.type)
{
case REGULAR_FILE:
pfsal_handle = &pentry->object.file.handle;
break;
case SYMBOLIC_LINK:
assert(pentry->object.symlink);
pfsal_handle = &pentry->object.symlink->handle;
break;
case DIR_BEGINNING:
pfsal_handle = &pentry->object.dir_begin.handle;
break;
case DIR_CONTINUE:
/*
* lock the related dir_begin (dir begin are garbagge
* collected AFTER their related dir_cont)
* this means that if a DIR_CONTINUE exists,
* its pdir pointer is not endless
*/
P_r(&pentry->object.dir_cont.pdir_begin->lock);
pfsal_handle = &pentry->object.dir_cont.pdir_begin->object.dir_begin.handle;
V_r(&pentry->object.dir_cont.pdir_begin->lock);
break;
case SOCKET_FILE:
case FIFO_FILE:
case BLOCK_FILE:
case CHARACTER_FILE:
pfsal_handle = &pentry->object.special_obj.handle;
break;
case FS_JUNCTION:
case UNASSIGNED:
case RECYCLED:
*pstatus = CACHE_INODE_INVALID_ARGUMENT;
LogFullDebug(COMPONENT_CACHE_INODE,
"cache_inode_getattr: returning %d(%s) from cache_inode_renew_entry - unexpected md_type",
*pstatus, cache_inode_err_str(*pstatus));
return *pstatus;
}
/*
* An error occured when trying to get
* the attributes, they have to be renewed
*/
#ifdef _USE_MFSL
fsal_status = FSAL_getattrs_descriptor(&(cache_inode_fd(pentry)->fsal_file), pfsal_handle, pcontext, pattr);
#else
fsal_status = FSAL_getattrs_descriptor(cache_inode_fd(pentry), pfsal_handle, pcontext, pattr);
#endif
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
V_r(&pentry->lock);
if(fsal_status.major == ERR_FSAL_STALE)
{
cache_inode_status_t kill_status;
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_getattr: Stale FSAL File Handle detected for pentry = %p",
pentry);
cache_inode_kill_entry(pentry, ht,
pclient, &kill_status);
if(kill_status != CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_getattr: Could not kill entry %p, status = %u",
pentry, kill_status);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
/* stat */
inc_func_err_unrecover(pclient, CACHE_INODE_GETATTR);
LogDebug(COMPONENT_CACHE_INODE,
"cache_inode_getattr: returning %d(%s) from FSAL_getattrs_descriptor",
*pstatus, cache_inode_err_str(*pstatus));
return *pstatus;
}
/* Set the new attributes */
cache_inode_set_attributes(pentry, pattr);
}
*pstatus = cache_inode_valid(pentry, CACHE_INODE_OP_GET, pclient);
V_r(&pentry->lock);
/* stat */
if(*pstatus != CACHE_INODE_SUCCESS)
inc_func_err_retryable(pclient, CACHE_INODE_GETATTR);
else
inc_func_success(pclient, CACHE_INODE_GETATTR);
#ifdef _USE_NFS4_ACL
if(isDebug(COMPONENT_NFS_V4_ACL))
{
LogDebug(COMPONENT_CACHE_INODE,
"cache_inode_getattr: pentry = %p, acl = %p",
pentry, pattr->acl);
if(pattr->acl)
{
fsal_ace_t *pace;
for(pace = pattr->acl->aces; pace < pattr->acl->aces + pattr->acl->naces; pace++)
{
LogDebug(COMPONENT_CACHE_INODE,
"cache_inode_getattr: ace type = 0x%x, flag = 0x%x, perm = 0x%x, special = %d, %s = 0x%x",
pace->type, pace->flag, pace->perm, IS_FSAL_ACE_SPECIAL_ID(*pace),
GET_FSAL_ACE_WHO_TYPE(*pace), GET_FSAL_ACE_WHO(*pace));
}
}
}
#endif /* _USE_NFS4_ACL */
LogFullDebug(COMPONENT_CACHE_INODE,
"cache_inode_getattr: returning %d(%s) from cache_inode_valid",
*pstatus, cache_inode_err_str(*pstatus));
return *pstatus;
}
/**
*
* cache_inode_getattr: Gets the attributes for a cached entry.
*
* Gets the attributes for a cached entry. The FSAL attributes are kept in a structure when the entry
* is added to the cache.
*
* @param pentry [IN] entry to be managed.
* @param pattr [OUT] pointer to the results
* @param ht [IN] hash table used for the cache, unused in this call.
* @param pclient [INOUT] ressource allocated by the client for the nfs management.
* @param pcontext [IN] FSAL credentials
* @param pstatus [OUT] returned status.
*
* @return CACHE_INODE_SUCCESS if operation is a success \n
* @return CACHE_INODE_LRU_ERROR if allocation error occured when validating the entry
*
*/
cache_inode_status_t
cache_inode_getattr(cache_entry_t * pentry,
fsal_attrib_list_t * pattr,
hash_table_t * ht, /* Unused, kept for protototype's homogeneity */
cache_inode_client_t * pclient,
fsal_op_context_t * pcontext,
cache_inode_status_t * pstatus)
{
cache_inode_status_t status;
fsal_handle_t *pfsal_handle;
fsal_status_t fsal_status;
/* sanity check */
if(pentry == NULL || pattr == NULL ||
ht == NULL || pclient == NULL || pcontext == NULL)
{
*pstatus = CACHE_INODE_INVALID_ARGUMENT;
return *pstatus;
}
/* Set the return default to CACHE_INODE_SUCCESS */
*pstatus = CACHE_INODE_SUCCESS;
/* stats */
pclient->stat.nb_call_total += 1;
inc_func_call(pclient, CACHE_INODE_GETATTR);
/* Lock the entry */
P_w(&pentry->lock);
status = cache_inode_renew_entry(pentry, pattr, ht,
pclient, pcontext, pstatus);
if(status != CACHE_INODE_SUCCESS)
{
V_w(&pentry->lock);
inc_func_err_retryable(pclient, CACHE_INODE_GETATTR);
return *pstatus;
}
/* RW Lock goes for writer to reader */
rw_lock_downgrade(&pentry->lock);
cache_inode_get_attributes(pentry, pattr);
if(FSAL_TEST_MASK(pattr->asked_attributes,
FSAL_ATTR_RDATTR_ERR))
{
switch (pentry->internal_md.type)
{
case REGULAR_FILE:
pfsal_handle = &pentry->object.file.handle;
break;
case SYMBOLIC_LINK:
pfsal_handle = &pentry->object.symlink.handle;
break;
case DIR_BEGINNING:
pfsal_handle = &pentry->object.dir_begin.handle;
break;
case DIR_CONTINUE:
/*
* lock the related dir_begin (dir begin are garbagge
* collected AFTER their related dir_cont)
* this means that if a DIR_CONTINUE exists,
* its pdir pointer is not endless
*/
P_r(&pentry->object.dir_cont.pdir_begin->lock);
pfsal_handle = &pentry->object.dir_cont.pdir_begin->object.dir_begin.handle;
V_r(&pentry->object.dir_cont.pdir_begin->lock);
break;
case SOCKET_FILE:
case FIFO_FILE:
case BLOCK_FILE:
case CHARACTER_FILE:
pfsal_handle = &pentry->object.special_obj.handle;
break;
}
/*
* An error occured when trying to get
* the attributes, they have to be renewed
*/
fsal_status = FSAL_getattrs(pfsal_handle, pcontext, pattr);
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
V_r(&pentry->lock);
if(fsal_status.major == ERR_FSAL_STALE)
{
cache_inode_status_t kill_status;
LogDebug(COMPONENT_CACHE_INODE_GC,
"cache_inode_getattr: Stale FSAL File "
"Handle detected for pentry = %p",
pentry);
cache_inode_kill_entry(pentry, ht,
pclient, &kill_status);
if(kill_status != CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE_GC,
"cache_inode_getattr: Could not kill "
"entry %p, status = %u",
pentry, kill_status);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
/* stat */
inc_func_err_unrecover(pclient, CACHE_INODE_GETATTR);
return *pstatus;
}
/* Set the new attributes */
cache_inode_set_attributes(pentry, pattr);
}
*pstatus = cache_inode_valid(pentry, CACHE_INODE_OP_GET, pclient);
V_r(&pentry->lock);
/* stat */
if(*pstatus != CACHE_INODE_SUCCESS)
inc_func_err_retryable(pclient, CACHE_INODE_GETATTR);
else
inc_func_success(pclient, CACHE_INODE_GETATTR);
return *pstatus;
}
