fsal_posixdb_status_t fsal_posixdb_delete(fsal_posixdb_conn * p_conn, /* IN */
posixfsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
fsal_posixdb_fileinfo_t *
p_object_info /* IN */ )
{
result_handle_t res;
fsal_posixdb_status_t st;
char query[2048];
/*******************
* 1/ sanity check *
*******************/
if(!p_conn || !p_parent_directory_handle || !p_filename)
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
BeginTransaction(p_conn);
/*******************************
* 2/ we check the file exists *
*******************************/
snprintf(query, 2048, "SELECT Parent.handleid, Parent.handlets, "
"Handle.deviceid, Handle.inode, Handle.nlink, Handle.ctime, Handle.ftype "
"FROM Parent INNER JOIN Handle ON Parent.handleid = Handle.handleid "
"AND Parent.handlets=Handle.handlets "
"WHERE handleidparent=%llu AND handletsparent=%u AND name='%s' "
"FOR UPDATE", p_parent_directory_handle->data.id,
p_parent_directory_handle->data.ts, p_filename->name);
st = db_exec_sql(p_conn, query, &res);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
if(mysql_num_rows(res) != 1)
{
/* parent entry not found */
mysql_free_result(res);
RollbackTransaction(p_conn);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOENT, 0);
}
mysql_free_result(res);
/***********************************************
* 3/ Get information about the file to delete *
***********************************************/
st = fsal_posixdb_internal_delete(p_conn, p_parent_directory_handle->data.id,
p_parent_directory_handle->data.ts,
p_filename->name, p_object_info);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
return EndTransaction(p_conn);
rollback:
RollbackTransaction(p_conn);
return st;
}
/*
* This function adds an entry in the database
*/
fsal_status_t fsal_internal_posixdb_add_entry(fsal_posixdb_conn * p_conn,
fsal_name_t * p_filename,
fsal_posixdb_fileinfo_t * p_info,
posixfsal_handle_t * p_dir_handle,
posixfsal_handle_t * p_new_handle)
{
fsal_posixdb_status_t stdb;
if(!p_info || !p_conn || !p_new_handle) /* p_filename & p_dir_handle can be NULL for the root */
ReturnCode(ERR_FSAL_FAULT, 0);
add:
stdb = fsal_posixdb_add(p_conn, p_info, p_dir_handle, p_filename, p_new_handle);
if(stdb.major == ERR_FSAL_POSIXDB_CONSISTENCY)
{ /* there is already an entry with this path, but it's an inconsistent one */
stdb = fsal_posixdb_deleteHandle(p_conn, p_new_handle);
if(FSAL_POSIXDB_IS_ERROR(stdb))
return posixdb2fsal_error(stdb);
goto add;
}
else if(FSAL_POSIXDB_IS_ERROR(stdb))
{
return posixdb2fsal_error(stdb);
}
ReturnCode(ERR_FSAL_NO_ERROR, 0);
}
void display_directory(fsal_posixdb_conn * p_conn, posixfsal_handle_t * p_handle_parent,
char *basedir)
{
fsal_posixdb_child *p_children;
fsal_posixdb_status_t st;
unsigned int count, i;
st = fsal_posixdb_getChildren(p_conn, p_handle_parent, 0, &p_children, &count);
if(FSAL_POSIXDB_IS_ERROR(st))
{
fprintf(stderr, "Error (%i/%i) while getting children of %s\n", st.major, st.minor,
basedir);
return;
}
for(i = 0; i < count; i++)
{
printf("%llu %s/%s\n", (unsigned long long int)p_children[i].handle.data.info.inode,
basedir, p_children[i].name.name);
if(p_children[i].handle.data.info.ftype == FSAL_TYPE_DIR)
{
char basedir_new[FSAL_MAX_PATH_LEN];
memset( basedir_new, 0, FSAL_MAX_PATH_LEN ) ;
strncpy(basedir_new, basedir, FSAL_MAX_PATH_LEN);
strncat(basedir_new, "/", FSAL_MAX_PATH_LEN);
strncat(basedir_new, p_children[i].name.name, FSAL_MAX_PATH_LEN);
display_directory(p_conn, &(p_children[i].handle), basedir_new);
}
}
gsh_free(p_children);
}
/**
* @brief Lock the line of the Handle table with inode & devid defined in p_info
*
* @param p_conn
* Database connection
* @param p_info
* Information about the file
*
* @return ERR_FSAL_POSIXDB_NOERR if no error,
* another error code else.
*/
fsal_posixdb_status_t fsal_posixdb_lockHandleForUpdate(fsal_posixdb_conn * p_conn, /* IN */
fsal_posixdb_fileinfo_t *
p_info /* IN */ )
{
result_handle_t res;
fsal_posixdb_status_t st;
char query[2048];
BeginTransaction(p_conn);
snprintf(query, 2048, "SELECT handleid, handlets, nlink, ctime, ftype "
"FROM Handle WHERE deviceid=%llu AND inode=%llu "
"FOR UPDATE", (unsigned long long)p_info->devid, (unsigned long long)p_info->inode);
st = db_exec_sql(p_conn, query, &res);
if(FSAL_POSIXDB_IS_ERROR(st))
{
RollbackTransaction(p_conn);
return st;
}
mysql_free_result(res);
/* Do not end the transaction, because it will be closed by the next call to a posixdb function */
ReturnCodeDB(ERR_FSAL_POSIXDB_NOERR, 0);
}
fsal_posixdb_status_t fsal_posixdb_deleteHandle(fsal_posixdb_conn * p_conn, /* IN */
posixfsal_handle_t *
p_parent_directory_handle /* IN */ )
{
/* char handleid_str[MAX_HANDLEIDSTR_SIZE];
char handlets_str[MAX_HANDLETSSTR_SIZE];
const char *paramValues[2]; */
int found;
result_handle_t res;
fsal_posixdb_status_t st;
char query[2048];
BeginTransaction(p_conn);
LogFullDebug(COMPONENT_FSAL, "Deleting %llu.%u\n", p_parent_directory_handle->data.id,
p_parent_directory_handle->data.ts);
snprintf(query, 2048,
"SELECT Handle.deviceid, Handle.inode, Handle.nlink, Handle.ctime, Handle.ftype "
"FROM Handle WHERE handleid=%llu AND handlets=%u FOR UPDATE",
p_parent_directory_handle->data.id, p_parent_directory_handle->data.ts);
st = db_exec_sql(p_conn, query, &res);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
found = mysql_num_rows(res);
mysql_free_result(res);
if(found)
{
/* entry found */
st = fsal_posixdb_recursiveDelete(p_conn, p_parent_directory_handle->data.id,
p_parent_directory_handle->data.ts, FSAL_TYPE_DIR);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
}
return EndTransaction(p_conn);
rollback:
RollbackTransaction(p_conn);
return st;
}
fsal_posixdb_status_t fsal_posixdb_getParentDirHandle(fsal_posixdb_conn * p_conn, /* IN */
posixfsal_handle_t * p_object_handle, /* IN */
posixfsal_handle_t * p_parent_directory_handle /* OUT */
)
{
fsal_posixdb_status_t st;
MYSQL_ROW row;
result_handle_t res;
char query[2048];
/* sanity check */
if(!p_conn || !p_parent_directory_handle || !p_object_handle)
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
/* no need to start a transaction, there is only one query */
snprintf(query, 2048,
"SELECT Parent.name, Parent.handleidparent, Parent.handletsparent, "
"Handle.deviceid, Handle.inode, Handle.nlink, Handle.ctime, Handle.ftype "
"FROM Parent LEFT JOIN Handle ON Parent.handleidparent = Handle.handleid AND Parent.handletsparent=Handle.handlets "
"WHERE Parent.handleid=%llu AND Parent.handlets=%u", p_object_handle->data.id,
p_object_handle->data.ts);
st = db_exec_sql(p_conn, query, &res);
if(FSAL_POSIXDB_IS_ERROR(st))
return st;
/* entry not found */
if(mysql_num_rows(res) == 0)
{
mysql_free_result(res);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOENT, 0);
}
row = mysql_fetch_row(res);
if(row == NULL)
{
mysql_free_result(res);
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
}
LogDebug(COMPONENT_FSAL, "lookupPathsExt");
p_parent_directory_handle->data.id = atoll(row[1]);
p_parent_directory_handle->data.ts = atoi(row[2]);
posixdb_internal_fillFileinfoFromStrValues(&(p_parent_directory_handle->data.info), row[3],
row[4], row[5], row[6], row[7]);
mysql_free_result(res);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOERR, 0);
}
void emptydb(fsal_posixdb_conn * p_conn)
{
fsal_posixdb_status_t st;
st = fsal_posixdb_flush(p_conn);
if(FSAL_POSIXDB_IS_ERROR(st))
{
fprintf(stderr, "Error (%i/%i) while emptying the database\n", st.major, st.minor);
}
else
{
printf("Database entries have been successfully deleted\n");
}
return;
}
/**
* @brief Get the handle of a file, knowing its name and its parent dir
*
* @param p_context
* @param p_parent_dir_handle
* Handle of the parent directory
* @param p_fsalname
* Name of the object
* @param p_infofs
* Information about the file (taken from the filesystem) to be compared to information stored in database
* @param p_object_handle
* Handle of the file.
*
* @return
* ERR_FSAL_NOERR, if no error
* Anothere error code else.
*/
fsal_status_t fsal_internal_getInfoFromName(posixfsal_op_context_t * p_context, /* IN */
posixfsal_handle_t * p_parent_dir_handle, /* IN */
fsal_name_t * p_fsalname, /* IN */
fsal_posixdb_fileinfo_t * p_infofs, /* IN */
posixfsal_handle_t * p_object_handle) /* OUT */
{
fsal_posixdb_status_t stdb;
fsal_status_t st;
stdb = fsal_posixdb_getInfoFromName(p_context->p_conn,
p_parent_dir_handle,
p_fsalname, NULL, p_object_handle);
switch (stdb.major)
{
case ERR_FSAL_POSIXDB_NOERR:
/* No error, the object is in the database */
/* check consistency */
if(fsal_posixdb_consistency_check(&(p_object_handle->data.info), p_infofs))
{
/* Entry not consistent */
/* Delete the Handle entry, then add a new one (with a Parent entry) */
stdb = fsal_posixdb_deleteHandle(p_context->p_conn, p_object_handle);
if(FSAL_POSIXDB_IS_ERROR(stdb) && FSAL_IS_ERROR(st = posixdb2fsal_error(stdb)))
return st;
/* don't break, add a new entry */
}
else
{
break;
}
case ERR_FSAL_POSIXDB_NOENT:
/* object not in the database, add a new entry */
st = fsal_internal_posixdb_add_entry(p_context->p_conn,
p_fsalname,
p_infofs,
p_parent_dir_handle, p_object_handle);
if(FSAL_IS_ERROR(st))
return st;
break;
default:
/* error */
if(FSAL_IS_ERROR(st = posixdb2fsal_error(stdb)))
return st;
}
ReturnCode(ERR_FSAL_NO_ERROR, 0);
}
fsal_status_t POSIXFSAL_InitClientContext(fsal_op_context_t * thr_context)
{
posixfsal_op_context_t * p_thr_context = (posixfsal_op_context_t *) thr_context;
fsal_posixdb_status_t st;
/* sanity check */
if(!p_thr_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_InitClientContext);
/* initialy set the export entry to none */
p_thr_context->export_context = NULL;
st = fsal_posixdb_connect(&global_posixdb_params, &(p_thr_context->p_conn));
if(FSAL_POSIXDB_IS_ERROR(st))
{
LogCrit(COMPONENT_FSAL,
"CRITICAL ERROR: Worker could not connect to database !!!");
Return(ERR_FSAL_SERVERFAULT, 0, INDEX_FSAL_InitClientContext);
}
else
{
LogEvent(COMPONENT_FSAL, "Worker successfuly connected to database");
}
/* sets the credential time */
/* p_thr_context->credential.last_update = time( NULL );*/
/* traces: prints p_credential structure */
/*
LogDebug(COMPONENT_FSAL, "credential created:");
LogDebug(COMPONENT_FSAL, "\tuid = %d, gid = %d",
p_thr_context->credential.hpss_usercred.SecPWent.Uid, p_thr_context->credential.hpss_usercred.SecPWent.Gid);
LogDebug(COMPONENT_FSAL, "\tName = %s",
p_thr_context->credential.hpss_usercred.SecPWent.Name);
for ( i=0; i< p_thr_context->credential.hpss_usercred.NumGroups; i++ )
LogDebug(COMPONENT_FSAL, "\tAlt grp: %d",
p_thr_context->credential.hpss_usercred.AltGroups[i] );
*/
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_InitClientContext);
}
void find(fsal_posixdb_conn * p_conn)
{
posixfsal_handle_t handle_root;
fsal_posixdb_status_t st;
st = fsal_posixdb_getInfoFromName(p_conn, NULL, /* parent handle */
NULL, /* filename */
NULL, /* path */
&handle_root);
if(FSAL_POSIXDB_IS_NOENT(st))
{
fputs("Error : Root handle not found. Is the database empty ?", stderr);
return;
}
else if(FSAL_POSIXDB_IS_ERROR(st))
{
fprintf(stderr, "Error (%i/%i) while getting root handle\n", st.major, st.minor);
return;
}
display_directory(p_conn, &handle_root, "");
return;
}
fsal_posixdb_status_t fsal_posixdb_recursiveDelete(fsal_posixdb_conn * p_conn,
char *handleid_str, char *handlets_str,
fsal_nodetype_t ftype)
{
PGresult *p_res;
fsal_posixdb_status_t st;
fsal_nodetype_t ftype_tmp;
unsigned int i;
unsigned int i_max;
const char *paramValues[2];
/* Sanity check */
if(!p_conn || !handleid_str || !handlets_str)
{
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
}
if(ftype == FSAL_TYPE_DIR)
{
/* We find all the children of the directory in order to delete them, and then we delete the current handle */
paramValues[0] = handleid_str;
paramValues[1] = handlets_str;
p_res = PQexecPrepared(p_conn, "lookupChildrenFU", 2, paramValues, NULL, NULL, 0);
CheckResult(p_res);
i_max = (unsigned int)PQntuples(p_res);
for(i = 0; i < i_max; i++)
{
ftype_tmp = (fsal_nodetype_t) atoi(PQgetvalue(p_res, i, 2));
if(ftype_tmp == FSAL_TYPE_DIR)
{
st = fsal_posixdb_recursiveDelete(p_conn, PQgetvalue(p_res, i, 0),
PQgetvalue(p_res, i, 1), ftype_tmp);
}
else
{
st = fsal_posixdb_deleteParent(p_conn, PQgetvalue(p_res, i, 0), /* handleidparent */
PQgetvalue(p_res, i, 1), /* handletsparent */
handleid_str, handlets_str, PQgetvalue(p_res, i, 3), /* filename */
atoi(PQgetvalue(p_res, i, 4)) /* nlink */
);
}
if(FSAL_POSIXDB_IS_ERROR(st))
{
PQclear(p_res);
return st;
}
}
PQclear(p_res);
}
/* Delete the Handle */
/* All Parent entries having this handle will be deleted thanks to foreign keys */
paramValues[0] = handleid_str;
paramValues[1] = handlets_str;
/* invalidate name cache */
fsal_posixdb_InvalidateCache();
p_res = PQexecPrepared(p_conn, "deleteHandle", 2, paramValues, NULL, NULL, 0);
CheckCommand(p_res);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOERR, 0);
}
fsal_posixdb_status_t fsal_posixdb_getInfoFromHandle(fsal_posixdb_conn * p_conn, /* IN */
posixfsal_handle_t * p_object_handle, /* IN/OUT */
fsal_path_t * p_paths, /* OUT */
int paths_size, /* IN */
int *p_count /* OUT */ )
{
fsal_posixdb_status_t st;
result_handle_t res;
MYSQL_ROW row;
posixfsal_handle_t parent_directory_handle;
int i_path;
int toomanypaths = 0;
char query[2048];
/* sanity check */
if(!p_conn || !p_object_handle || ((!p_paths || !p_count) && paths_size > 0))
{
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
}
LogFullDebug(COMPONENT_FSAL, "OBJECT_ID=%lli\n", p_object_handle->data.id);
BeginTransaction(p_conn);
/* lookup for the handle of the file */
if(!fsal_posixdb_GetInodeCache(p_object_handle))
{
snprintf(query, 2048,
"SELECT Handle.deviceid, Handle.inode, Handle.nlink, Handle.ctime, Handle.ftype "
"FROM Handle WHERE handleid=%llu AND handlets=%u", p_object_handle->data.id,
p_object_handle->data.ts);
st = db_exec_sql(p_conn, query, &res);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
/* p_res contains : Handle.deviceId, Handle.inode, Handle.nlink, Handle.ctime, Handle.ftype */
LogDebug(COMPONENT_FSAL, "lookupHandle(%llu,%u)", p_object_handle->data.id,
(unsigned int)p_object_handle->data.ts);
if((mysql_num_rows(res) != 1) || ((row = mysql_fetch_row(res)) == NULL))
{
LogDebug(COMPONENT_FSAL, "lookupHandle=%d entries", mysql_num_rows(res));
mysql_free_result(res);
RollbackTransaction(p_conn);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOENT, 0);
}
posixdb_internal_fillFileinfoFromStrValues(&(p_object_handle->data.info),
row[0], row[1], row[2], row[3], row[4]);
mysql_free_result(res);
/* update the inode */
fsal_posixdb_UpdateInodeCache(p_object_handle);
}
/* Build the paths of the object */
if(p_paths)
{
/* find all the paths to the object */
snprintf(query, 2048, "SELECT name, handleidparent, handletsparent "
"FROM Parent WHERE handleid=%llu AND handlets=%u",
p_object_handle->data.id, p_object_handle->data.ts);
st = db_exec_sql(p_conn, query, &res);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
/* res contains name, handleidparent, handletsparent */
*p_count = mysql_num_rows(res);
if(*p_count == 0)
{
mysql_free_result(res);
RollbackTransaction(p_conn);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOPATH, 0);
}
else if(*p_count > paths_size)
{
toomanypaths = 1;
LogCrit(COMPONENT_FSAL, "Too many paths found for object %llu.%u: found=%u, max=%d",
p_object_handle->data.id, p_object_handle->data.ts, *p_count, paths_size);
*p_count = paths_size;
}
for(i_path = 0; i_path < *p_count; i_path++)
{
unsigned int tmp_len;
row = mysql_fetch_row(res);
if(row == NULL)
{
mysql_free_result(res);
RollbackTransaction(p_conn);
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
}
/* build the path of the parent directory */
parent_directory_handle.data.id = atoll(row[1]);
parent_directory_handle.data.ts = atoi(row[2]);
st = fsal_posixdb_buildOnePath(p_conn, &parent_directory_handle,
&p_paths[i_path]);
if(FSAL_POSIXDB_IS_ERROR(st))
goto free_res;
tmp_len = p_paths[i_path].len;
if((tmp_len > 0) && (p_paths[i_path].path[tmp_len - 1] == '/'))
{
/* then concatenate the name of the file */
/* but not concatenate '/' */
if((tmp_len + strlen(row[0]) >= FSAL_MAX_PATH_LEN))
{
mysql_free_result(res);
RollbackTransaction(p_conn);
ReturnCodeDB(ERR_FSAL_POSIXDB_PATHTOOLONG, 0);
}
strcpy(&p_paths[i_path].path[tmp_len], row[0]);
p_paths[i_path].len += strlen(row[0]);
}
else
{
/* then concatenate the name of the file */
if((tmp_len + 1 + strlen(row[0]) >= FSAL_MAX_PATH_LEN))
{
mysql_free_result(res);
RollbackTransaction(p_conn);
ReturnCodeDB(ERR_FSAL_POSIXDB_PATHTOOLONG, 0);
}
p_paths[i_path].path[tmp_len] = '/';
strcpy(&p_paths[i_path].path[tmp_len + 1], row[0]);
p_paths[i_path].len += 1 + strlen(row[0]);
}
/* insert the object into cache */
fsal_posixdb_CachePath(p_object_handle, &p_paths[i_path]);
}
mysql_free_result(res);
}
st = EndTransaction(p_conn);
if(toomanypaths)
ReturnCodeDB(ERR_FSAL_POSIXDB_TOOMANYPATHS, 0);
else
return st;
free_res:
mysql_free_result(res);
rollback:
RollbackTransaction(p_conn);
return st;
}
fsal_posixdb_status_t fsal_posixdb_getInfoFromName(fsal_posixdb_conn * p_conn, /* IN */
posixfsal_handle_t * p_parent_directory_handle, /* IN/OUT */
fsal_name_t * p_objectname, /* IN */
fsal_path_t * p_path, /* OUT */
posixfsal_handle_t *
p_handle /* OUT */ )
{
fsal_posixdb_status_t st;
char query[2048];
result_handle_t res;
MYSQL_ROW row;
/* sanity check */
if(!p_conn || !p_handle)
{
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
}
LogFullDebug(COMPONENT_FSAL, "object_name='%s'\n", p_objectname->name ? p_objectname->name : "/");
BeginTransaction(p_conn);
/* lookup for the handle of the file */
if(p_parent_directory_handle && p_parent_directory_handle->data.id)
{
snprintf(query, 2048,
"SELECT Parent.handleid, Parent.handlets, Handle.deviceid, "
"Handle.inode, Handle.nlink, Handle.ctime, Handle.ftype "
"FROM Parent INNER JOIN Handle ON Parent.handleid = Handle.handleid AND Parent.handlets=Handle.handlets "
"WHERE handleidparent=%llu AND handletsparent=%u AND name='%s'",
p_parent_directory_handle->data.id,
p_parent_directory_handle->data.ts, p_objectname->name);
st = db_exec_sql(p_conn, query, &res);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
}
else
{
/* get root handle: */
st = db_exec_sql(p_conn,
"SELECT Parent.handleid, Parent.handlets, Handle.deviceid, Handle.inode, Handle.nlink, Handle.ctime, Handle.ftype "
"FROM Parent INNER JOIN Handle ON Parent.handleid = Handle.handleid AND Parent.handlets=Handle.handlets "
"WHERE Parent.handleidparent=Parent.handleid AND Parent.handletsparent=Parent.handlets",
&res);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
}
/* res contains : Parent.handleid, Parent.handlets, Handle.deviceid, Handle.inode, Handle.nlink, Handle.ctime, Handle.ftype */
/* entry not found */
if((mysql_num_rows(res) != 1) || ((row = mysql_fetch_row(res)) == NULL))
{
mysql_free_result(res);
RollbackTransaction(p_conn);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOENT, 0);
}
p_handle->data.id = atoll(row[0]);
p_handle->data.ts = atoi(row[1]);
posixdb_internal_fillFileinfoFromStrValues(&(p_handle->data.info), row[2], row[3], /* devid, inode */
row[4], /* nlink */
row[5], /* ctime */
row[6]); /* ftype */
mysql_free_result(res);
/* Build the path of the object */
if(p_path && p_objectname)
{
/* build the path of the Parent */
st = fsal_posixdb_buildOnePath(p_conn, p_parent_directory_handle, p_path);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
/* then concatenate the filename */
if(!(p_path->len + 1 + p_objectname->len < FSAL_MAX_PATH_LEN))
{
RollbackTransaction(p_conn);
ReturnCodeDB(ERR_FSAL_POSIXDB_PATHTOOLONG, 0);
}
p_path->path[p_path->len] = '/';
strcpy(&p_path->path[p_path->len + 1], p_objectname->name);
p_path->len += 1 + p_objectname->len;
/* add the the path to cache */
fsal_posixdb_CachePath(p_handle, p_path);
}
else
{
/* update handle if it was in cache */
fsal_posixdb_UpdateInodeCache(p_handle);
}
return EndTransaction(p_conn);
rollback:
RollbackTransaction(p_conn);
return st;
}
/**
* FSAL_opendir :
* Opens a directory for reading its content.
*
* \param dir_handle (input)
* the handle of the directory to be opened.
* \param cred (input)
* Permission context for the operation (user,...).
* \param dir_descriptor (output)
* pointer to an allocated structure that will receive
* directory stream informations, on successfull completion.
* \param dir_attributes (optional output)
* On successfull completion,the structure pointed
* by dir_attributes receives the new directory attributes.
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t POSIXFSAL_opendir(fsal_handle_t * dir_handle, /* IN */
fsal_op_context_t * context, /* IN */
fsal_dir_t * dir_descriptor, /* OUT */
fsal_attrib_list_t * p_dir_attributes /* [ IN/OUT ] */
)
{
posixfsal_handle_t * p_dir_handle = (posixfsal_handle_t *) dir_handle;
posixfsal_op_context_t * p_context = (posixfsal_op_context_t *) context;
posixfsal_dir_t * p_dir_descriptor = (posixfsal_dir_t *) dir_descriptor;
int rc, errsv;
fsal_status_t status;
fsal_path_t fsalpath;
struct stat buffstat;
/* sanity checks
* note : dir_attributes is optionnal.
*/
if(!p_dir_handle || !p_context || !p_dir_descriptor)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_opendir);
/* get the path of the directory */
status =
fsal_internal_getPathFromHandle(p_context, p_dir_handle, 1, &fsalpath, &buffstat);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_opendir);
/* Test access rights for this directory */
status = fsal_internal_testAccess(p_context, FSAL_R_OK, &buffstat, NULL);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_opendir);
/* if everything is OK, fills the dir_desc structure : */
TakeTokenFSCall();
p_dir_descriptor->p_dir = opendir(fsalpath.path);
ReleaseTokenFSCall();
if(!p_dir_descriptor->p_dir)
Return(posix2fsal_error(errno), errno, INDEX_FSAL_opendir);
memcpy(&(p_dir_descriptor->context), p_context, sizeof(posixfsal_op_context_t));
memcpy(&(p_dir_descriptor->path), &fsalpath, sizeof(fsal_path_t));
memcpy(&(p_dir_descriptor->handle), p_dir_handle, sizeof(posixfsal_handle_t));
#ifdef _USE_POSIXDB_READDIR_BLOCK
p_dir_descriptor->p_dbentries = NULL;
p_dir_descriptor->dbentries_count = 0;
/* fill the p_dbentries list */
statusdb = fsal_posixdb_getChildren(p_dir_descriptor->context.p_conn,
&(p_dir_descriptor->handle),
FSAL_POSIXDB_MAXREADDIRBLOCKSIZE,
&(p_dir_descriptor->p_dbentries),
&(p_dir_descriptor->dbentries_count));
if(FSAL_POSIXDB_IS_ERROR(statusdb)) /* too many entries in the directory, or another error */
p_dir_descriptor->dbentries_count = -1;
#endif
if(p_dir_attributes)
{
TakeTokenFSCall();
rc = lstat(fsalpath.path, &buffstat);
errsv = errno;
ReleaseTokenFSCall();
if(rc) /* lstat failed */
goto attr_err;
status = posix2fsal_attributes(&buffstat, p_dir_attributes);
if(FSAL_IS_ERROR(status))
{
attr_err:
FSAL_CLEAR_MASK(p_dir_attributes->asked_attributes);
FSAL_SET_MASK(p_dir_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_opendir);
}
/**
* FSAL_readdir :
* Read the entries of an opened directory.
*
* \param dir_descriptor (input):
* Pointer to the directory descriptor filled by FSAL_opendir.
* \param start_position (input):
* Cookie that indicates the first object to be read during
* this readdir operation.
* This should be :
* - FSAL_READDIR_FROM_BEGINNING for reading the content
* of the directory from the beginning.
* - The end_position parameter returned by the previous
* call to FSAL_readdir.
* \param get_attr_mask (input)
* Specify the set of attributes to be retrieved for directory entries.
* \param buffersize (input)
* The size (in bytes) of the buffer where
* the direntries are to be stored.
* \param pdirent (output)
* Adresse of the buffer where the direntries are to be stored.
* \param end_position (output)
* Cookie that indicates the current position in the directory.
* \param nb_entries (output)
* Pointer to the number of entries read during the call.
* \param end_of_dir (output)
* Pointer to a boolean that indicates if the end of dir
* has been reached during the call.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t POSIXFSAL_readdir(fsal_dir_t * dir_descriptor, /* IN */
fsal_cookie_t start_pos, /* IN */
fsal_attrib_mask_t get_attr_mask, /* IN */
fsal_mdsize_t buffersize, /* IN */
fsal_dirent_t * p_pdirent, /* OUT */
fsal_cookie_t * end_position, /* OUT */
fsal_count_t * p_nb_entries, /* OUT */
fsal_boolean_t * p_end_of_dir /* OUT */
)
{
posixfsal_dir_t * p_dir_descriptor = (posixfsal_dir_t *) dir_descriptor;
posixfsal_cookie_t start_position, telldir_pos;
posixfsal_cookie_t * p_end_position = (posixfsal_cookie_t *) end_position;
fsal_status_t st;
fsal_posixdb_status_t stdb;
fsal_count_t max_dir_entries;
struct dirent *dp;
struct dirent dpe;
struct stat buffstat;
fsal_path_t fsalpath;
fsal_posixdb_fileinfo_t infofs;
int rc;
/*****************/
/* sanity checks */
/*****************/
if(!p_dir_descriptor || !p_pdirent || !p_end_position || !p_nb_entries || !p_end_of_dir)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_readdir);
max_dir_entries = (buffersize / sizeof(fsal_dirent_t));
/***************************/
/* seek into the directory */
/***************************/
memcpy ( (char *)&start_position.data.cookie, (char *)&start_pos.data, sizeof( off_t ) ) ;
errno = 0;
if(start_position.data.cookie == 0)
{
rewinddir(p_dir_descriptor->p_dir);
rc = errno;
}
else
{
seekdir(p_dir_descriptor->p_dir, start_position.data.cookie);
rc = errno;
}
if(rc)
{
st.major = posix2fsal_error(rc);
st.minor = rc;
goto readdir_error;
}
/************************/
/* browse the directory */
/************************/
*p_nb_entries = 0;
while(*p_nb_entries < max_dir_entries)
{
/***********************/
/* read the next entry */
/***********************/
TakeTokenFSCall();
rc = readdir_r(p_dir_descriptor->p_dir, &dpe, &dp);
ReleaseTokenFSCall();
if(rc)
{
st.major = posix2fsal_error(errno);
st.minor = errno;
goto readdir_error;
} /* End of directory */
if(!dp)
{
*p_end_of_dir = 1;
break;
}
/***********************************/
/* Get information about the entry */
/***********************************/
/* build the full path of the file into "fsalpath */
if(FSAL_IS_ERROR
(st =
FSAL_str2name(dp->d_name, FSAL_MAX_NAME_LEN, &(p_pdirent[*p_nb_entries].name))))
goto readdir_error;
memcpy(&fsalpath, &(p_dir_descriptor->path), sizeof(fsal_path_t));
st = fsal_internal_appendFSALNameToFSALPath(&fsalpath,
&(p_pdirent[*p_nb_entries].name));
if(FSAL_IS_ERROR(st))
goto readdir_error;
/* get object info */
TakeTokenFSCall();
rc = lstat(fsalpath.path, &buffstat);
ReleaseTokenFSCall();
if(rc)
{
st.major = posix2fsal_error(errno);
st.minor = errno;
goto readdir_error;
}
if(FSAL_IS_ERROR(st = fsal_internal_posix2posixdb_fileinfo(&buffstat, &infofs)))
goto readdir_error;
/********************/
/* fills the handle */
/********************/
/* check for "." and ".." */
if(!strcmp(dp->d_name, "."))
{
memcpy(&(p_pdirent[*p_nb_entries].handle), &(p_dir_descriptor->handle),
sizeof(posixfsal_handle_t));
}
else if(!strcmp(dp->d_name, ".."))
{
stdb = fsal_posixdb_getParentDirHandle(p_dir_descriptor->context.p_conn,
&(p_dir_descriptor->handle),
(posixfsal_handle_t *) &(p_pdirent[*p_nb_entries].handle));
if(FSAL_POSIXDB_IS_ERROR(stdb) && FSAL_IS_ERROR(st = posixdb2fsal_error(stdb)))
goto readdir_error;
}
else
{
#ifdef _USE_POSIXDB_READDIR_BLOCK
if(p_dir_descriptor->dbentries_count > -1)
{ /* look for the entry in dbentries */
st = fsal_internal_getInfoFromChildrenList(&(p_dir_descriptor->context),
&(p_dir_descriptor->handle),
&(p_pdirent[*p_nb_entries].name),
&infofs,
p_dir_descriptor->p_dbentries,
p_dir_descriptor->
dbentries_count,
&(p_pdirent[*p_nb_entries].
handle));
}
else
#endif
{ /* get handle for the entry */
st = fsal_internal_getInfoFromName(&(p_dir_descriptor->context),
&(p_dir_descriptor->handle),
&(p_pdirent[*p_nb_entries].name),
&infofs,
(posixfsal_handle_t *) &(p_pdirent[*p_nb_entries].handle));
}
if(FSAL_IS_ERROR(st))
goto readdir_error;
} /* end of name check for "." and ".." */
/************************
* Fills the attributes *
************************/
p_pdirent[*p_nb_entries].attributes.asked_attributes = get_attr_mask;
st = posix2fsal_attributes(&buffstat, &(p_pdirent[*p_nb_entries].attributes));
if(FSAL_IS_ERROR(st))
goto readdir_error;
/*
*
**/
telldir_pos.data.cookie = telldir(p_dir_descriptor->p_dir);
memcpy(&p_pdirent[*p_nb_entries].cookie, &telldir_pos, sizeof(fsal_cookie_t));
p_pdirent[*p_nb_entries].nextentry = NULL;
if(*p_nb_entries)
p_pdirent[*p_nb_entries - 1].nextentry = &(p_pdirent[*p_nb_entries]);
memcpy(p_end_position, &p_pdirent[*p_nb_entries].cookie, sizeof(fsal_cookie_t));
(*p_nb_entries)++;
};
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_readdir);
/* return error, and free what must be freed */
readdir_error:
Return(st.major, st.minor, INDEX_FSAL_readdir);
}
fsal_posixdb_status_t fsal_posixdb_add(fsal_posixdb_conn * p_conn, /* IN */
fsal_posixdb_fileinfo_t * p_object_info, /* IN */
posixfsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
posixfsal_handle_t * p_object_handle /* OUT */ )
{
PGresult *p_res;
char handleid_str[MAX_HANDLEIDSTR_SIZE];
char handlets_str[MAX_HANDLETSSTR_SIZE];
char handleidparent_str[MAX_HANDLEIDSTR_SIZE];
char handletsparent_str[MAX_HANDLETSSTR_SIZE];
char devid_str[MAX_DEVICEIDSTR_SIZE];
char inode_str[MAX_INODESTR_SIZE];
int found;
const char *paramValues[6];
fsal_posixdb_status_t st;
/*******************
* 1/ sanity check *
*******************/
/* parent_directory and filename are NULL only if it is the root directory */
if(!p_conn || !p_object_info || !p_object_handle
|| (p_filename && !p_parent_directory_handle) || (!p_filename
&& p_parent_directory_handle))
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
CheckConn(p_conn);
LogFullDebug(COMPONENT_FSAL, "adding entry with parentid=%llu, id=%"PRIu64", name=%s\n",
p_parent_directory_handle ? p_parent_directory_handle->data.id : 0,
p_object_info ? p_object_info->inode : 0,
p_filename ? p_filename->name : "NULL");
BeginTransaction(p_conn, p_res);
/*********************************
* 2/ we check the parent handle *
*********************************/
if(p_parent_directory_handle)
{ /* the root has no parent */
snprintf(handleidparent_str, MAX_HANDLEIDSTR_SIZE, "%llu",
p_parent_directory_handle->data.id);
snprintf(handletsparent_str, MAX_HANDLETSSTR_SIZE, "%i",
p_parent_directory_handle->data.ts);
paramValues[0] = handleidparent_str;
paramValues[1] = handletsparent_str;
p_res = PQexecPrepared(p_conn, "lookupHandle", 2, paramValues, NULL, NULL, 0);
CheckResult(p_res);
if(PQntuples(p_res) != 1)
{
/* parent entry not found */
RollbackTransaction(p_conn, p_res);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOENT, 0);
}
PQclear(p_res);
}
/**********************************************************
* 3/ Check if there is an existing Handle for the object *
**********************************************************/
snprintf(devid_str, MAX_DEVICEIDSTR_SIZE, "%llu",
(unsigned long long int)p_object_info->devid);
snprintf(inode_str, MAX_INODESTR_SIZE, "%llu",
(unsigned long long int)p_object_info->inode);
paramValues[0] = devid_str;
paramValues[1] = inode_str;
p_res = PQexecPrepared(p_conn, "lookupHandleByInodeFU", 2, paramValues, NULL, NULL, 0);
CheckResult(p_res);
found = (PQntuples(p_res) == 1);
if(found)
{ /* a Handle (that matches devid & inode) already exists */
/* fill 'info' with information about the handle in the database */
posixdb_internal_fillFileinfoFromStrValues(&(p_object_handle->data.info), NULL, NULL, PQgetvalue(p_res, 0, 2), /* nlink */
PQgetvalue(p_res, 0, 3), /* ctime */
PQgetvalue(p_res, 0, 4) /* ftype */
);
p_object_handle->data.info.inode = p_object_info->inode;
p_object_handle->data.info.devid = p_object_info->devid;
strncpy(handleid_str, PQgetvalue(p_res, 0, 0), MAX_HANDLEIDSTR_SIZE);
strncpy(handlets_str, PQgetvalue(p_res, 0, 1), MAX_HANDLETSSTR_SIZE);
PQclear(p_res);
p_object_handle->data.id = atoll(handleid_str);
p_object_handle->data.ts = atoi(handlets_str);
/* check the consistency of the handle */
if(fsal_posixdb_consistency_check(&(p_object_handle->data.info), p_object_info))
{
/* consistency check failed */
/* p_object_handle has been filled in order to be able to fix the consistency later */
RollbackTransaction(p_conn, p_res);
ReturnCodeDB(ERR_FSAL_POSIXDB_CONSISTENCY, 0);
}
/* update nlink & ctime if needed */
if(p_object_info->nlink != p_object_handle->data.info.nlink
|| p_object_info->ctime != p_object_handle->data.info.ctime)
{
char nlink_str[MAX_NLINKSTR_SIZE];
char ctime_str[MAX_CTIMESTR_SIZE];
snprintf(nlink_str, MAX_NLINKSTR_SIZE, "%i", p_object_info->nlink);
snprintf(ctime_str, MAX_CTIMESTR_SIZE, "%i", (int)p_object_info->ctime);
paramValues[0] = handleid_str;
paramValues[1] = handlets_str;
paramValues[2] = nlink_str;
paramValues[3] = ctime_str;
p_object_handle->data.info = *p_object_info;
p_res = PQexecPrepared(p_conn, "updateHandle", 4, paramValues, NULL, NULL, 0);
CheckCommand(p_res);
}
fsal_posixdb_UpdateInodeCache(p_object_handle);
}
else
{ /* no handle found */
/* Handle does not exist, add a new Handle entry */
char nlink_str[MAX_NLINKSTR_SIZE];
char ctime_str[MAX_CTIMESTR_SIZE];
char ftype_str[MAX_FTYPESTR_SIZE];
PQclear(p_res);
p_object_handle->data.ts = (int)time(NULL);
p_object_handle->data.info = *p_object_info;
snprintf(handlets_str, MAX_HANDLETSSTR_SIZE, "%i", p_object_handle->data.ts);
snprintf(nlink_str, MAX_NLINKSTR_SIZE, "%i", p_object_info->nlink);
snprintf(ctime_str, MAX_CTIMESTR_SIZE, "%i", (int)p_object_info->ctime);
snprintf(ftype_str, MAX_CTIMESTR_SIZE, "%i", (int)p_object_info->ftype);
paramValues[0] = devid_str;
paramValues[1] = inode_str;
paramValues[2] = handlets_str;
paramValues[3] = nlink_str;
paramValues[4] = ctime_str;
paramValues[5] = ftype_str;
p_res = PQexecPrepared(p_conn, "insertHandle", 6, paramValues, NULL, NULL, 0);
CheckCommand(p_res);
PQclear(p_res);
p_res =
PQexecPrepared(p_conn, "lookupHandleByInodeFU", 2, paramValues, NULL, NULL, 0);
CheckResult(p_res);
strncpy(handleid_str, PQgetvalue(p_res, 0, 0), MAX_HANDLEIDSTR_SIZE);
strncpy(handlets_str, PQgetvalue(p_res, 0, 1), MAX_HANDLETSSTR_SIZE);
p_object_handle->data.id = atoll(PQgetvalue(p_res, 0, 0));
PQclear(p_res);
/* now, we have the handle id */
fsal_posixdb_UpdateInodeCache(p_object_handle);
}
/************************************************
* add (or update) an entry in the Parent table *
************************************************/
paramValues[0] = p_parent_directory_handle ? handleidparent_str : handleid_str;
paramValues[1] = p_parent_directory_handle ? handletsparent_str : handlets_str;
paramValues[2] = p_filename ? p_filename->name : "";
p_res = PQexecPrepared(p_conn, "lookupParent", 3, paramValues, NULL, NULL, 0);
CheckResult(p_res);
/* p-res contains handleid & handlets */
found = (PQntuples(p_res) == 1);
paramValues[3] = handleid_str;
paramValues[4] = handlets_str;
if(found)
{
/* update the Parent entry if necessary (there entry exists with another handle) */
if((fsal_u64_t) atoll(PQgetvalue(p_res, 0, 0)) != p_object_handle->data.id
|| atoi(PQgetvalue(p_res, 0, 1)) != p_object_handle->data.ts)
{
/* steps :
- check the nlink value of the Parent entry to be overwritten
- if nlink = 1, then we can delete the handle.
else we have to update it (nlink--) : that is done by fsal_posixdb_deleteParent
- update the handle of the entry
*/
char bad_handleid_str[MAX_HANDLEIDSTR_SIZE];
char bad_handlets_str[MAX_HANDLETSSTR_SIZE];
int nlink;
strncpy(bad_handleid_str, PQgetvalue(p_res, 0, 0), MAX_HANDLEIDSTR_SIZE);
strncpy(bad_handlets_str, PQgetvalue(p_res, 0, 1), MAX_HANDLETSSTR_SIZE);
PQclear(p_res); /* clear old res before a new query */
/* check the nlink value of the entry to be updated */
paramValues[0] = handleidparent_str;
paramValues[1] = handletsparent_str;
p_res = PQexecPrepared(p_conn, "lookupHandleFU", 2, paramValues, NULL, NULL, 0);
CheckResult(p_res);
found = (PQntuples(p_res) == 1);
if(found)
{ /* we have retrieved the handle information of the bad entry */
nlink = atoi(PQgetvalue(p_res, 0, 4));
PQclear(p_res); /* clear old res before a new query */
/* a Parent entry already exists, we delete it */
st = fsal_posixdb_deleteParent(p_conn, bad_handleid_str, bad_handlets_str,
p_parent_directory_handle ?
handleidparent_str : handleid_str,
p_parent_directory_handle ?
handletsparent_str : handlets_str,
p_filename ? p_filename->name : "", nlink);
if(FSAL_POSIXDB_IS_ERROR(st))
{
RollbackTransaction(p_conn, p_res);
return st;
}
}
else
{ /* the Handle line has been deleted */
PQclear(p_res); /* clear old res before a new query */
}
/* the bad entry has been deleted. Now we had a new Parent entry */
goto add_new_parent_entry;
}
else
{
/* a Parent entry exists with our handle, nothing to do */
PQclear(p_res);
}
}
else
{
/* add a Parent entry */
PQclear(p_res);
add_new_parent_entry:
paramValues[0] = p_parent_directory_handle ? handleidparent_str : handleid_str;
paramValues[1] = p_parent_directory_handle ? handletsparent_str : handlets_str;
paramValues[2] = p_filename ? p_filename->name : "";
paramValues[3] = handleid_str;
paramValues[4] = handlets_str;
p_res = PQexecPrepared(p_conn, "insertParent", 5, paramValues, NULL, NULL, 0);
CheckCommand(p_res);
PQclear(p_res);
/* XXX : is it possible to have unique key violation ? */
}
EndTransaction(p_conn, p_res);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOERR, 0);
}
int main(int argc, char **argv)
{
fsal_posixdb_conn_params_t dbparams;
char exec_name[MAXPATHLEN];
char c, op = 0;
fsal_posixdb_conn *p_conn;
fsal_posixdb_status_t statusdb;
char path[MAXPATHLEN];
int rc;
char options[] = "h@H:P:L:D:K:";
char usage[] =
"Usage: %s [-h][-H <host>][-P <port>][-L <login>][-D <dbname>][-K <passwd file>] operation operation_parameters\n"
"\t[-h] display this help\n"
"\t[-H <host>] Database host\n"
"\t[-P <port>] Database port\n"
"\t[-L <login>] Database login\n"
"\t[-D <dbname>] Name of the database\n"
"\t[-K <passwd file>] Path of the file where is stored the password\n"
"------------- Default Values -------------\n"
"host : localhost\n"
"port : default DB port\n"
"dbname : posixdb\n"
"login : current unix user\n"
"passwd file : default path ($PGPASSFILE)\n"
"------------- Operations -----------------\n"
"test_connection : try to connect to the database\n"
"empty_database : Delete all entries in the database\n"
"find : Print the entries of the database (as 'find' would do it)\n"
"populate <path> : Add (recursively) the object in <path> into the database\n\n";
memset(&dbparams, 0, sizeof(fsal_posixdb_conn_params_t));
strcpy(dbparams.host, "localhost");
strcpy(dbparams.dbname, "posixdb");
/* What is the executable file's name */
if(*exec_name == '\0')
strcpy((char *)exec_name, basename(argv[0]));
/* now parsing options with getopt */
while((c = getopt(argc, argv, options)) != EOF)
{
switch (c)
{
case '@':
/* A litlle backdoor to keep track of binary versions */
printf("%s compiled on %s at %s\n", exec_name, __DATE__, __TIME__);
exit(0);
break;
case 'H':
strncpy(dbparams.host, optarg, FSAL_MAX_DBHOST_NAME_LEN);
break;
case 'P':
strncpy(dbparams.port, optarg, FSAL_MAX_DBPORT_STR_LEN);
break;
case 'L':
strncpy(dbparams.login, optarg, FSAL_MAX_DB_LOGIN_LEN);
break;
case 'D':
strncpy(dbparams.dbname, optarg, FSAL_MAX_DB_NAME_LEN);
break;
case 'K':
strncpy(dbparams.passwdfile, optarg, PATH_MAX);
break;
default:
/* display the help */
fprintf(stderr, usage, exec_name);
exit(0);
break;
}
}
if(optind == argc)
{
fprintf(stderr, "No operation specified.\n");
fprintf(stderr, usage, exec_name);
exit(0);
}
if(optind < argc)
{
if(!strcmp(argv[optind], "test_connection"))
{
op = OP_TESTCONN;
}
else if(!strcmp(argv[optind], "empty_database"))
{
op = OP_EMPTYDB;
}
else if(!strcmp(argv[optind], "find"))
{
op = OP_FIND;
}
else if(!strcmp(argv[optind], "populate"))
{
op = OP_POPULATE;
optind++;
if(optind < argc)
{
strncpy(path, argv[optind], MAXPATHLEN);
}
else
{
fputs("Operation 'populate' need a parameter", stderr);
fprintf(stderr, usage, exec_name);
exit(-1);
}
}
else
{
fprintf(stderr, "Unknown operation : %s\n", argv[optind]);
fprintf(stderr, usage, exec_name);
exit(-1);
}
}
/* Connecting to database */
if(*(dbparams.passwdfile) != '\0')
{
rc = setenv("PGPASSFILE", dbparams.passwdfile, 1);
if(rc != 0)
fputs("Could not set POSTGRESQL keytab path.", stderr);
}
fprintf(stderr, "Opening database connection to %s...\n", dbparams.host);
statusdb = fsal_posixdb_connect(&dbparams, &p_conn);
if(FSAL_POSIXDB_IS_ERROR(statusdb))
{
fprintf(stderr, "Error %i. exiting.\n", statusdb.minor);
exit(-1);
}
else
{
fprintf(stderr, "Connected.\n");
}
/* Execute the operation */
switch (op)
{
case OP_TESTCONN:
/* nothing to do */
break;
case OP_EMPTYDB:
emptydb(p_conn);
break;
case OP_FIND:
find(p_conn);
break;
case OP_POPULATE:
populatedb(p_conn, path);
break;
default:
puts("Bad operation !!");
fprintf(stderr, usage, exec_name);
}
fsal_posixdb_disconnect(p_conn);
exit(0);
}
/**
* Get a valid path associated to an handle.
* The function selects many paths from the DB and return the first valid one. If is_dir is set, then only 1 path will be constructed from the database.
*/
fsal_status_t fsal_internal_getPathFromHandle(posixfsal_op_context_t * p_context, /* IN */
posixfsal_handle_t * p_handle, /* IN */
int is_dir, /* IN */
fsal_path_t * p_fsalpath, /* OUT */
struct stat *p_buffstat /* OUT */ )
{
fsal_status_t status;
fsal_posixdb_status_t statusdb;
int rc, errsv, count, i;
fsal_posixdb_fileinfo_t infofs;
fsal_path_t paths[global_fs_info.maxlink];
if(!p_context || !p_handle || !p_fsalpath)
ReturnCode(ERR_FSAL_FAULT, 0);
/* if there is a path in the posixfsal_handle_t variable, then try to use it instead of querying the database for it */
/* Read the path from the Handle. If it's valid & coherent, then no need to query the database ! */
/* if !p_buffstat, we don't need to check the path */
statusdb = fsal_posixdb_getInfoFromHandle(p_context->p_conn,
p_handle,
paths,
(is_dir ? 1 : global_fs_info.maxlink),
&count);
if(FSAL_POSIXDB_IS_ERROR(statusdb)
&& FSAL_IS_ERROR(status = posixdb2fsal_error(statusdb)))
return status;
/* if !p_buffstat, then we do not stat the path to test if file is valid */
if(p_buffstat)
{
for(i = 0; i < count; i++)
{
TakeTokenFSCall();
rc = lstat(paths[i].path, p_buffstat);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
/* error : delete the bad path from the database */
char dirc[FSAL_MAX_PATH_LEN];
char basec[FSAL_MAX_PATH_LEN];
fsal_path_t parentdir;
fsal_name_t filename;
posixfsal_handle_t parenthdl;
char *dname, *bname;
/* split /path/to/filename in /path/to & filename */
strncpy(dirc, paths[i].path, FSAL_MAX_PATH_LEN);
strncpy(basec, paths[i].path, FSAL_MAX_PATH_LEN);
dname = dirname(dirc);
bname = basename(basec);
status = FSAL_str2path(dname, FSAL_MAX_PATH_LEN, &parentdir);
status = FSAL_str2name(bname, FSAL_MAX_NAME_LEN, &filename);
/* get the handle of /path/to */
status = POSIXFSAL_lookupPath(&parentdir, p_context, &parenthdl, NULL);
if(!FSAL_IS_ERROR(status))
{
statusdb =
fsal_posixdb_delete(p_context->p_conn, &parenthdl, &filename, NULL);
/* no need to check if there was an error, because it doesn't change the behavior of the function */
}
}
else
{ /* no error */
FSAL_pathcpy(p_fsalpath, &(paths[0]));
break;
}
}
if(i == count)
ReturnCode(ERR_FSAL_STALE, 0);
/* check consistency */
status = fsal_internal_posix2posixdb_fileinfo(p_buffstat, &infofs);
if(FSAL_IS_ERROR(status))
return status;
if(fsal_posixdb_consistency_check(&(p_handle->data.info), &infofs))
{
/* not consistent !! */
/* delete the stale handle */
statusdb = fsal_posixdb_deleteHandle(p_context->p_conn, p_handle);
if(FSAL_POSIXDB_IS_ERROR(statusdb)
&& FSAL_IS_ERROR(status = posixdb2fsal_error(statusdb)))
return status;
ReturnCode(ERR_FSAL_STALE, 0);
}
}
else
{
/* @TODO : check that there si at liste 1 path */
FSAL_pathcpy(p_fsalpath, &(paths[0]));
}
ReturnCode(ERR_FSAL_NO_ERROR, 0);
}
/**
* @brief Get the handle of a file from a fsal_posixdb_child array, knowing its name
*
* @param p_context
* @param p_parent_dir_handle
* Handle of the parent directory
* @param p_fsalname
* Name of the object
* @param p_infofs
* Information about the file (taken from the filesystem) to be compared to information stored in database
* @param p_children
* fsal_posixdb_child array (that contains the entries of the directory stored in the db)
* @param p_object_handle
* Handle of the file.
*
* @return
* ERR_FSAL_NOERR, if no error
* Anothere error code else.
*/
fsal_status_t fsal_internal_getInfoFromChildrenList(posixfsal_op_context_t * p_context, /* IN */
posixfsal_handle_t * p_parent_dir_handle, /* IN */
fsal_name_t * p_fsalname, /* IN */
fsal_posixdb_fileinfo_t * p_infofs, /* IN */
fsal_posixdb_child * p_children, /* IN */
unsigned int children_count, /* IN */
posixfsal_handle_t * p_object_handle) /* OUT */
{
fsal_posixdb_status_t stdb;
fsal_status_t st;
int cmp = -1; /* when no children is available */
unsigned int count;
/* sanity check */
if(!p_context || !p_parent_dir_handle || !p_fsalname || (!p_children && children_count)
|| !p_object_handle)
ReturnCode(ERR_FSAL_FAULT, 0);
/* check if the filename is in the list */
for(count = 0; count < children_count; count++)
{
cmp = FSAL_namecmp(p_fsalname, &(p_children[count].name));
if(!cmp)
break;
/* maybe a sorted list could give better result */
}
switch (cmp)
{
case 0:
/* Entry found : check consistency */
if(fsal_posixdb_consistency_check(&(p_children[count].handle.data.info), p_infofs))
{
/* Entry not consistent */
/* Delete the Handle entry, then add a new one (with a Parent entry) */
stdb =
fsal_posixdb_deleteHandle(p_context->p_conn, &(p_children[count].handle));
if(FSAL_POSIXDB_IS_ERROR(stdb) && FSAL_IS_ERROR(st = posixdb2fsal_error(stdb)))
return st;
/* don't break, add a new entry */
}
else
{
memcpy(p_object_handle, &(p_children[count].handle),
sizeof(posixfsal_handle_t));
break;
}
default:
/* not found ! Add it */
st = fsal_internal_posixdb_add_entry(p_context->p_conn,
p_fsalname,
p_infofs,
p_parent_dir_handle, p_object_handle);
if(FSAL_IS_ERROR(st))
return st;
}
ReturnCode(ERR_FSAL_NO_ERROR, 0);
}
