/* * s3fs - FUSE-based file system backed by Amazon S3 * * Copyright 2007-2008 Randy Rizun * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "common.h" #include "s3fs.h" #include "curl.h" #include "cache.h" #include "string_util.h" #include "s3fs_util.h" #include "fdcache.h" #include "s3fs_auth.h" #include "addhead.h" using namespace std; //------------------------------------------------------------------- // Define //------------------------------------------------------------------- #define DIRTYPE_UNKNOWN -1 #define DIRTYPE_NEW 0 #define DIRTYPE_OLD 1 #define DIRTYPE_FOLDER 2 #define DIRTYPE_NOOBJ 3 #define IS_REPLACEDIR(type) (DIRTYPE_OLD == type || DIRTYPE_FOLDER == type || DIRTYPE_NOOBJ == type) #define IS_RMTYPEDIR(type) (DIRTYPE_OLD == type || DIRTYPE_FOLDER == type) #if !defined(ENOATTR) #define ENOATTR ENODATA #endif //------------------------------------------------------------------- // Structs //------------------------------------------------------------------- typedef struct uncomplete_multipart_info{ string key; string id; string date; }UNCOMP_MP_INFO; typedef std::list uncomp_mp_list_t; //------------------------------------------------------------------- // Global valiables //------------------------------------------------------------------- bool foreground = false; bool nomultipart = false; bool pathrequeststyle = false; std::string program_name; std::string service_path = "/"; std::string host = "http://s3.amazonaws.com"; std::string bucket = ""; std::string endpoint = "us-east-1"; s3fs_log_level debug_level = S3FS_LOG_CRIT; const char* s3fs_log_nest[S3FS_LOG_NEST_MAX] = {"", " ", " ", " "}; //------------------------------------------------------------------- // Static valiables //------------------------------------------------------------------- static uid_t mp_uid = 0; // owner of mount point(only not specified uid opt) static gid_t mp_gid = 0; // group of mount point(only not specified gid opt) static mode_t mp_mode = 0; // mode of mount point static mode_t mp_umask = 0; // umask for mount point static bool is_mp_umask = false;// default does not set. static std::string mountpoint; static std::string passwd_file = ""; static bool utility_mode = false; static bool noxmlns = false; static bool nocopyapi = false; static bool norenameapi = false; static bool nonempty = false; static bool allow_other = false; static uid_t s3fs_uid = 0; static gid_t s3fs_gid = 0; static mode_t s3fs_umask = 0; static bool is_s3fs_uid = false;// default does not set. static bool is_s3fs_gid = false;// default does not set. static bool is_s3fs_umask = false;// default does not set. static bool is_remove_cache = false; static bool create_bucket = false; static int64_t singlepart_copy_limit = FIVE_GB; static bool is_specified_endpoint = false; static int s3fs_init_deferred_exit_status = 0; //------------------------------------------------------------------- // Static functions : prototype //------------------------------------------------------------------- static void s3fs_usr2_handler(int sig); static bool set_s3fs_usr2_handler(void); static s3fs_log_level set_s3fs_log_level(s3fs_log_level level); static s3fs_log_level bumpup_s3fs_log_level(void); static bool is_special_name_folder_object(const char* path); static int chk_dir_object_type(const char* path, string& newpath, string& nowpath, string& nowcache, headers_t* pmeta = NULL, int* pDirType = NULL); static int get_object_attribute(const char* path, struct stat* pstbuf, headers_t* pmeta = NULL, bool overcheck = true, bool* pisforce = NULL); static int check_object_access(const char* path, int mask, struct stat* pstbuf); static int check_object_owner(const char* path, struct stat* pstbuf); static int check_parent_object_access(const char* path, int mask); static FdEntity* get_local_fent(const char* path, bool is_load = false); static bool multi_head_callback(S3fsCurl* s3fscurl); static S3fsCurl* multi_head_retry_callback(S3fsCurl* s3fscurl); static int readdir_multi_head(const char* path, S3ObjList& head, void* buf, fuse_fill_dir_t filler); static int list_bucket(const char* path, S3ObjList& head, const char* delimiter, bool check_content_only = false); static int directory_empty(const char* path); static bool is_truncated(xmlDocPtr doc); static int append_objects_from_xml_ex(const char* path, xmlDocPtr doc, xmlXPathContextPtr ctx, const char* ex_contents, const char* ex_key, const char* ex_etag, int isCPrefix, S3ObjList& head); static int append_objects_from_xml(const char* path, xmlDocPtr doc, S3ObjList& head); static bool GetXmlNsUrl(xmlDocPtr doc, string& nsurl); static xmlChar* get_base_exp(xmlDocPtr doc, const char* exp); static xmlChar* get_prefix(xmlDocPtr doc); static xmlChar* get_next_marker(xmlDocPtr doc); static char* get_object_name(xmlDocPtr doc, xmlNodePtr node, const char* path); static int put_headers(const char* path, headers_t& meta, bool is_copy); static int rename_large_object(const char* from, const char* to); static int create_file_object(const char* path, mode_t mode, uid_t uid, gid_t gid); static int create_directory_object(const char* path, mode_t mode, time_t time, uid_t uid, gid_t gid); static int rename_object(const char* from, const char* to); static int rename_object_nocopy(const char* from, const char* to); static int clone_directory_object(const char* from, const char* to); static int rename_directory(const char* from, const char* to); static int remote_mountpath_exists(const char* path); static xmlChar* get_exp_value_xml(xmlDocPtr doc, xmlXPathContextPtr ctx, const char* exp_key); static void print_uncomp_mp_list(uncomp_mp_list_t& list); static bool abort_uncomp_mp_list(uncomp_mp_list_t& list); static bool get_uncomp_mp_list(xmlDocPtr doc, uncomp_mp_list_t& list); static void free_xattrs(xattrs_t& xattrs); static bool parse_xattr_keyval(const std::string& xattrpair, string& key, PXATTRVAL& pval); static size_t parse_xattrs(const std::string& strxattrs, xattrs_t& xattrs); static std::string build_xattrs(const xattrs_t& xattrs); static int s3fs_utility_mode(void); static int s3fs_check_service(void); static int check_for_aws_format(void); static int check_passwd_file_perms(void); static int read_passwd_file(void); static int get_access_keys(void); static int set_moutpoint_attribute(struct stat& mpst); static int my_fuse_opt_proc(void* data, const char* arg, int key, struct fuse_args* outargs); // fuse interface functions static int s3fs_getattr(const char* path, struct stat* stbuf); static int s3fs_readlink(const char* path, char* buf, size_t size); static int s3fs_mknod(const char* path, mode_t mode, dev_t rdev); static int s3fs_mkdir(const char* path, mode_t mode); static int s3fs_unlink(const char* path); static int s3fs_rmdir(const char* path); static int s3fs_symlink(const char* from, const char* to); static int s3fs_rename(const char* from, const char* to); static int s3fs_link(const char* from, const char* to); static int s3fs_chmod(const char* path, mode_t mode); static int s3fs_chmod_nocopy(const char* path, mode_t mode); static int s3fs_chown(const char* path, uid_t uid, gid_t gid); static int s3fs_chown_nocopy(const char* path, uid_t uid, gid_t gid); static int s3fs_utimens(const char* path, const struct timespec ts[2]); static int s3fs_utimens_nocopy(const char* path, const struct timespec ts[2]); static int s3fs_truncate(const char* path, off_t size); static int s3fs_create(const char* path, mode_t mode, struct fuse_file_info* fi); static int s3fs_open(const char* path, struct fuse_file_info* fi); static int s3fs_read(const char* path, char* buf, size_t size, off_t offset, struct fuse_file_info* fi); static int s3fs_write(const char* path, const char* buf, size_t size, off_t offset, struct fuse_file_info* fi); static int s3fs_statfs(const char* path, struct statvfs* stbuf); static int s3fs_flush(const char* path, struct fuse_file_info* fi); static int s3fs_fsync(const char* path, int datasync, struct fuse_file_info* fi); static int s3fs_release(const char* path, struct fuse_file_info* fi); static int s3fs_opendir(const char* path, struct fuse_file_info* fi); static int s3fs_readdir(const char* path, void* buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info* fi); static int s3fs_access(const char* path, int mask); static void* s3fs_init(struct fuse_conn_info* conn); static void s3fs_destroy(void*); #if defined(__APPLE__) static int s3fs_setxattr(const char* path, const char* name, const char* value, size_t size, int flags, uint32_t position); static int s3fs_getxattr(const char* path, const char* name, char* value, size_t size, uint32_t position); #else static int s3fs_setxattr(const char* path, const char* name, const char* value, size_t size, int flags); static int s3fs_getxattr(const char* path, const char* name, char* value, size_t size); #endif static int s3fs_listxattr(const char* path, char* list, size_t size); static int s3fs_removexattr(const char* path, const char* name); //------------------------------------------------------------------- // Functions //------------------------------------------------------------------- static void s3fs_usr2_handler(int sig) { if(SIGUSR2 == sig){ bumpup_s3fs_log_level(); } } static bool set_s3fs_usr2_handler(void) { struct sigaction sa; memset(&sa, 0, sizeof(struct sigaction)); sa.sa_handler = s3fs_usr2_handler; sa.sa_flags = SA_RESTART; if(0 != sigaction(SIGUSR2, &sa, NULL)){ return false; } return true; } static s3fs_log_level set_s3fs_log_level(s3fs_log_level level) { if(level == debug_level){ return debug_level; } s3fs_log_level old = debug_level; debug_level = level; setlogmask(LOG_UPTO(S3FS_LOG_LEVEL_TO_SYSLOG(debug_level))); S3FS_PRN_CRIT("change debug level from %sto %s", S3FS_LOG_LEVEL_STRING(old), S3FS_LOG_LEVEL_STRING(debug_level)); return old; } static s3fs_log_level bumpup_s3fs_log_level(void) { s3fs_log_level old = debug_level; debug_level = ( S3FS_LOG_CRIT == debug_level ? S3FS_LOG_ERR : S3FS_LOG_ERR == debug_level ? S3FS_LOG_WARN : S3FS_LOG_WARN == debug_level ? S3FS_LOG_INFO : S3FS_LOG_INFO == debug_level ? S3FS_LOG_DBG : S3FS_LOG_CRIT ); setlogmask(LOG_UPTO(S3FS_LOG_LEVEL_TO_SYSLOG(debug_level))); S3FS_PRN_CRIT("change debug level from %sto %s", S3FS_LOG_LEVEL_STRING(old), S3FS_LOG_LEVEL_STRING(debug_level)); return old; } static bool is_special_name_folder_object(const char* path) { if(!path || '\0' == path[0]){ return false; } string strpath = path; headers_t header; if(string::npos == strpath.find("_$folder$", 0)){ if('/' == strpath[strpath.length() - 1]){ strpath = strpath.substr(0, strpath.length() - 1); } strpath += "_$folder$"; } S3fsCurl s3fscurl; if(0 != s3fscurl.HeadRequest(strpath.c_str(), header)){ return false; } header.clear(); S3FS_MALLOCTRIM(0); return true; } // [Detail] // This function is complicated for checking directory object type. // Arguments is used for deleting cache/path, and remake directory object. // Please see the codes which calls this function. // // path: target path // newpath: should be object path for making/putting/getting after checking // nowpath: now object name for deleting after checking // nowcache: now cache path for deleting after checking // pmeta: headers map // pDirType: directory object type // static int chk_dir_object_type(const char* path, string& newpath, string& nowpath, string& nowcache, headers_t* pmeta, int* pDirType) { int TypeTmp; int result = -1; bool isforce = false; int* pType = pDirType ? pDirType : &TypeTmp; // Normalize new path. newpath = path; if('/' != newpath[newpath.length() - 1]){ string::size_type Pos; if(string::npos != (Pos = newpath.find("_$folder$", 0))){ newpath = newpath.substr(0, Pos); } newpath += "/"; } // Alwayes check "dir/" at first. if(0 == (result = get_object_attribute(newpath.c_str(), NULL, pmeta, false, &isforce))){ // Found "dir/" cache --> Check for "_$folder$", "no dir object" nowcache = newpath; if(is_special_name_folder_object(newpath.c_str())){ // "_$folder$" type. (*pType) = DIRTYPE_FOLDER; nowpath = newpath.substr(0, newpath.length() - 1) + "_$folder$"; // cut and add }else if(isforce){ // "no dir object" type. (*pType) = DIRTYPE_NOOBJ; nowpath = ""; }else{ nowpath = path; if(0 < nowpath.length() && '/' == nowpath[nowpath.length() - 1]){ // "dir/" type (*pType) = DIRTYPE_NEW; }else{ // "dir" type (*pType) = DIRTYPE_OLD; } } }else{ // Check "dir" nowpath = newpath.substr(0, newpath.length() - 1); if(0 == (result = get_object_attribute(nowpath.c_str(), NULL, pmeta, false, &isforce))){ // Found "dir" cache --> this case is only "dir" type. // Because, if object is "_$folder$" or "no dir object", the cache is "dir/" type. // (But "no dir objet" is checked here.) nowcache = nowpath; if(isforce){ (*pType) = DIRTYPE_NOOBJ; nowpath = ""; }else{ (*pType) = DIRTYPE_OLD; } }else{ // Not found cache --> check for "_$folder$" and "no dir object". nowcache = ""; // This case is no cahce. nowpath += "_$folder$"; if(is_special_name_folder_object(nowpath.c_str())){ // "_$folder$" type. (*pType) = DIRTYPE_FOLDER; result = 0; // result is OK. }else if(-ENOTEMPTY == directory_empty(newpath.c_str())){ // "no dir object" type. (*pType) = DIRTYPE_NOOBJ; nowpath = ""; // now path. result = 0; // result is OK. }else{ // Error: Unknown type. (*pType) = DIRTYPE_UNKNOWN; newpath = ""; nowpath = ""; } } } return result; } // // Get object attributes with stat cache. // This function is base for s3fs_getattr(). // // [NOTICE] // Checking order is changed following list because of reducing the number of the requests. // 1) "dir" // 2) "dir/" // 3) "dir_$folder$" // static int get_object_attribute(const char* path, struct stat* pstbuf, headers_t* pmeta, bool overcheck, bool* pisforce) { int result = -1; struct stat tmpstbuf; struct stat* pstat = pstbuf ? pstbuf : &tmpstbuf; headers_t tmpHead; headers_t* pheader = pmeta ? pmeta : &tmpHead; string strpath; S3fsCurl s3fscurl; bool forcedir = false; string::size_type Pos; S3FS_PRN_DBG("[path=%s]", path); if(!path || '\0' == path[0]){ return -ENOENT; } memset(pstat, 0, sizeof(struct stat)); if(0 == strcmp(path, "/") || 0 == strcmp(path, ".")){ pstat->st_nlink = 1; // see fuse faq pstat->st_mode = mp_mode; pstat->st_uid = is_s3fs_uid ? s3fs_uid : mp_uid; pstat->st_gid = is_s3fs_gid ? s3fs_gid : mp_gid; return 0; } // Check cache. strpath = path; if(overcheck && string::npos != (Pos = strpath.find("_$folder$", 0))){ strpath = strpath.substr(0, Pos); strpath += "/"; } if(pisforce){ (*pisforce) = false; } if(StatCache::getStatCacheData()->GetStat(strpath, pstat, pheader, overcheck, pisforce)){ return 0; } if(StatCache::getStatCacheData()->IsNoObjectCache(strpath)){ // there is the path in the cache for no object, it is no object. return -ENOENT; } // At first, check path strpath = path; result = s3fscurl.HeadRequest(strpath.c_str(), (*pheader)); s3fscurl.DestroyCurlHandle(); // overcheck if(overcheck && 0 != result){ if('/' != strpath[strpath.length() - 1] && string::npos == strpath.find("_$folder$", 0)){ // path is "object", check "object/" for overcheck strpath += "/"; result = s3fscurl.HeadRequest(strpath.c_str(), (*pheader)); s3fscurl.DestroyCurlHandle(); } if(0 != result){ // not found "object/", check "_$folder$" strpath = path; if(string::npos == strpath.find("_$folder$", 0)){ if('/' == strpath[strpath.length() - 1]){ strpath = strpath.substr(0, strpath.length() - 1); } strpath += "_$folder$"; result = s3fscurl.HeadRequest(strpath.c_str(), (*pheader)); s3fscurl.DestroyCurlHandle(); } } if(0 != result){ // not found "object/" and "object_$folder$", check no dir object. strpath = path; if(string::npos == strpath.find("_$folder$", 0)){ if('/' == strpath[strpath.length() - 1]){ strpath = strpath.substr(0, strpath.length() - 1); } if(-ENOTEMPTY == directory_empty(strpath.c_str())){ // found "no dir obejct". strpath += "/"; forcedir = true; if(pisforce){ (*pisforce) = true; } result = 0; } } } }else{ // found "path" object. if('/' != strpath[strpath.length() - 1]){ // check a case of that "object" does not have attribute and "object" is possible to be directory. if(is_need_check_obj_detail(*pheader)){ if(-ENOTEMPTY == directory_empty(strpath.c_str())){ strpath += "/"; forcedir = true; if(pisforce){ (*pisforce) = true; } result = 0; } } } } if(0 != result){ // finally, "path" object did not find. Add no object cache. strpath = path; // reset original StatCache::getStatCacheData()->AddNoObjectCache(strpath); return result; } // if path has "_$folder$", need to cut it. if(string::npos != (Pos = strpath.find("_$folder$", 0))){ strpath = strpath.substr(0, Pos); strpath += "/"; } // Set into cache if(0 != StatCache::getStatCacheData()->GetCacheSize()){ // add into stat cache if(!StatCache::getStatCacheData()->AddStat(strpath, (*pheader), forcedir)){ S3FS_PRN_ERR("failed adding stat cache [path=%s]", strpath.c_str()); return -ENOENT; } if(!StatCache::getStatCacheData()->GetStat(strpath, pstat, pheader, overcheck, pisforce)){ // There is not in cache.(why?) -> retry to convert. if(!convert_header_to_stat(strpath.c_str(), (*pheader), pstat, forcedir)){ S3FS_PRN_ERR("failed convert headers to stat[path=%s]", strpath.c_str()); return -ENOENT; } } }else{ // cache size is Zero -> only convert. if(!convert_header_to_stat(strpath.c_str(), (*pheader), pstat, forcedir)){ S3FS_PRN_ERR("failed convert headers to stat[path=%s]", strpath.c_str()); return -ENOENT; } } return 0; } // // Check the object uid and gid for write/read/execute. // The param "mask" is as same as access() function. // If there is not a target file, this function returns -ENOENT. // If the target file can be accessed, the result always is 0. // // path: the target object path // mask: bit field(F_OK, R_OK, W_OK, X_OK) like access(). // stat: NULL or the pointer of struct stat. // static int check_object_access(const char* path, int mask, struct stat* pstbuf) { int result; struct stat st; struct stat* pst = (pstbuf ? pstbuf : &st); struct fuse_context* pcxt; S3FS_PRN_DBG("[path=%s]", path); if(NULL == (pcxt = fuse_get_context())){ return -EIO; } if(0 != (result = get_object_attribute(path, pst))){ // If there is not tha target file(object), reusult is -ENOENT. return result; } if(0 == pcxt->uid){ // root is allowed all accessing. return 0; } if(is_s3fs_uid && s3fs_uid == pcxt->uid){ // "uid" user is allowed all accessing. return 0; } if(F_OK == mask){ // if there is a file, always return allowed. return 0; } // for "uid", "gid" option uid_t obj_uid = (is_s3fs_uid ? s3fs_uid : pst->st_uid); gid_t obj_gid = (is_s3fs_gid ? s3fs_gid : pst->st_gid); // compare file mode and uid/gid + mask. mode_t mode; mode_t base_mask = S_IRWXO; if(is_s3fs_umask){ // If umask is set, all object attributes set ~umask. mode = ((S_IRWXU | S_IRWXG | S_IRWXO) & ~s3fs_umask); }else{ mode = pst->st_mode; } if(pcxt->uid == obj_uid){ base_mask |= S_IRWXU; } if(pcxt->gid == obj_gid){ base_mask |= S_IRWXG; } if(1 == is_uid_inculde_group(pcxt->uid, obj_gid)){ base_mask |= S_IRWXG; } mode &= base_mask; if(X_OK == (mask & X_OK)){ if(0 == (mode & (S_IXUSR | S_IXGRP | S_IXOTH))){ return -EPERM; } } if(W_OK == (mask & W_OK)){ if(0 == (mode & (S_IWUSR | S_IWGRP | S_IWOTH))){ return -EACCES; } } if(R_OK == (mask & R_OK)){ if(0 == (mode & (S_IRUSR | S_IRGRP | S_IROTH))){ return -EACCES; } } if(0 == mode){ return -EACCES; } return 0; } static int check_object_owner(const char* path, struct stat* pstbuf) { int result; struct stat st; struct stat* pst = (pstbuf ? pstbuf : &st); struct fuse_context* pcxt; S3FS_PRN_DBG("[path=%s]", path); if(NULL == (pcxt = fuse_get_context())){ return -EIO; } if(0 != (result = get_object_attribute(path, pst))){ // If there is not tha target file(object), reusult is -ENOENT. return result; } // check owner if(0 == pcxt->uid){ // root is allowed all accessing. return 0; } if(is_s3fs_uid && s3fs_uid == pcxt->uid){ // "uid" user is allowed all accessing. return 0; } if(pcxt->uid == pst->st_uid){ return 0; } return -EPERM; } // // Check accessing the parent directories of the object by uid and gid. // static int check_parent_object_access(const char* path, int mask) { string parent; int result; S3FS_PRN_DBG("[path=%s]", path); if(0 == strcmp(path, "/") || 0 == strcmp(path, ".")){ // path is mount point. return 0; } if(X_OK == (mask & X_OK)){ for(parent = mydirname(path); 0 < parent.size(); parent = mydirname(parent)){ if(parent == "."){ parent = "/"; } if(0 != (result = check_object_access(parent.c_str(), X_OK, NULL))){ return result; } if(parent == "/" || parent == "."){ break; } } } mask = (mask & ~X_OK); if(0 != mask){ parent = mydirname(path); if(parent == "."){ parent = "/"; } if(0 != (result = check_object_access(parent.c_str(), mask, NULL))){ return result; } } return 0; } // // ssevalue is MD5 for SSE-C type, or KMS id for SSE-KMS // bool get_object_sse_type(const char* path, sse_type_t& ssetype, string& ssevalue) { if(!path){ return false; } headers_t meta; if(0 != get_object_attribute(path, NULL, &meta)){ S3FS_PRN_ERR("Failed to get object(%s) headers", path); return false; } ssetype = SSE_DISABLE; ssevalue.erase(); for(headers_t::iterator iter = meta.begin(); iter != meta.end(); ++iter){ string key = (*iter).first; if(0 == strcasecmp(key.c_str(), "x-amz-server-side-encryption") && 0 == strcasecmp((*iter).second.c_str(), "AES256")){ ssetype = SSE_S3; }else if(0 == strcasecmp(key.c_str(), "x-amz-server-side-encryption-aws-kms-key-id")){ ssetype = SSE_KMS; ssevalue = (*iter).second; }else if(0 == strcasecmp(key.c_str(), "x-amz-server-side-encryption-customer-key-md5")){ ssetype = SSE_C; ssevalue = (*iter).second; } } return true; } static FdEntity* get_local_fent(const char* path, bool is_load) { struct stat stobj; FdEntity* ent; headers_t meta; S3FS_PRN_INFO2("[path=%s]", path); if(0 != get_object_attribute(path, &stobj, &meta)){ return NULL; } // open time_t mtime = (!S_ISREG(stobj.st_mode) || S_ISLNK(stobj.st_mode)) ? -1 : stobj.st_mtime; bool force_tmpfile = S_ISREG(stobj.st_mode) ? false : true; if(NULL == (ent = FdManager::get()->Open(path, &meta, static_cast(stobj.st_size), mtime, force_tmpfile, true))){ S3FS_PRN_ERR("Coult not open file. errno(%d)", errno); return NULL; } // load if(is_load && !ent->OpenAndLoadAll(&meta)){ S3FS_PRN_ERR("Coult not load file. errno(%d)", errno); FdManager::get()->Close(ent); return NULL; } return ent; } /** * create or update s3 meta * ow_sse_flg is for over writing sse header by use_sse option. * @return fuse return code */ static int put_headers(const char* path, headers_t& meta, bool is_copy) { int result; S3fsCurl s3fscurl(true); struct stat buf; S3FS_PRN_INFO2("[path=%s]", path); // files larger than 5GB must be modified via the multipart interface // *** If there is not target object(a case of move command), // get_object_attribute() returns error with initilizing buf. (void)get_object_attribute(path, &buf); if(buf.st_size >= FIVE_GB){ // multipart if(0 != (result = s3fscurl.MultipartHeadRequest(path, buf.st_size, meta, is_copy))){ return result; } }else{ if(0 != (result = s3fscurl.PutHeadRequest(path, meta, is_copy))){ return result; } } FdEntity* ent = NULL; if(NULL == (ent = FdManager::get()->ExistOpen(path, -1, !(FdManager::get()->IsCacheDir())))){ // no opened fd if(FdManager::get()->IsCacheDir()){ // create cache file if be needed ent = FdManager::get()->Open(path, &meta, static_cast(buf.st_size), -1, false, true); } } if(ent){ time_t mtime = get_mtime(meta); ent->SetMtime(mtime); FdManager::get()->Close(ent); } return 0; } static int s3fs_getattr(const char* path, struct stat* stbuf) { int result; S3FS_PRN_INFO("[path=%s]", path); // check parent directory attribute. if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_access(path, F_OK, stbuf))){ return result; } // If has already opened fd, the st_size shuld be instead. // (See: Issue 241) if(stbuf){ FdEntity* ent; if(NULL != (ent = FdManager::get()->ExistOpen(path))){ struct stat tmpstbuf; if(ent->GetStats(tmpstbuf)){ stbuf->st_size = tmpstbuf.st_size; } FdManager::get()->Close(ent); } stbuf->st_blksize = 4096; stbuf->st_blocks = get_blocks(stbuf->st_size); } S3FS_PRN_DBG("[path=%s] uid=%u, gid=%u, mode=%04o", path, (unsigned int)(stbuf->st_uid), (unsigned int)(stbuf->st_gid), stbuf->st_mode); S3FS_MALLOCTRIM(0); return result; } static int s3fs_readlink(const char* path, char* buf, size_t size) { if(!path || !buf || 0 >= size){ return 0; } // Open FdEntity* ent; if(NULL == (ent = get_local_fent(path))){ S3FS_PRN_ERR("could not get fent(file=%s)", path); return -EIO; } // Get size size_t readsize; if(!ent->GetSize(readsize)){ S3FS_PRN_ERR("could not get file size(file=%s)", path); FdManager::get()->Close(ent); return -EIO; } if(size <= readsize){ readsize = size - 1; } // Read ssize_t ressize; if(0 > (ressize = ent->Read(buf, 0, readsize))){ S3FS_PRN_ERR("could not read file(file=%s, errno=%zd)", path, ressize); FdManager::get()->Close(ent); return static_cast(ressize); } buf[ressize] = '\0'; FdManager::get()->Close(ent); S3FS_MALLOCTRIM(0); return 0; } static int do_create_bucket(void) { S3FS_PRN_INFO2("/"); headers_t meta; S3fsCurl s3fscurl(true); long res = s3fscurl.PutRequest("/", meta, -1); if(res < 0){ // fd=-1 means for creating zero byte object. long responseCode = s3fscurl.GetLastResponseCode(); if((responseCode == 400 || responseCode == 403) && S3fsCurl::IsSignatureV4()){ S3FS_PRN_ERR("Could not connect, so retry to connect by signature version 2."); S3fsCurl::SetSignatureV4(false); // retry to check s3fscurl.DestroyCurlHandle(); res = s3fscurl.PutRequest("/", meta, -1); } } return res; } // common function for creation of a plain object static int create_file_object(const char* path, mode_t mode, uid_t uid, gid_t gid) { S3FS_PRN_INFO2("[path=%s][mode=%04o]", path, mode); headers_t meta; meta["Content-Type"] = S3fsCurl::LookupMimeType(string(path)); meta["x-amz-meta-uid"] = str(uid); meta["x-amz-meta-gid"] = str(gid); meta["x-amz-meta-mode"] = str(mode); meta["x-amz-meta-mtime"] = str(time(NULL)); S3fsCurl s3fscurl(true); return s3fscurl.PutRequest(path, meta, -1); // fd=-1 means for creating zero byte object. } static int s3fs_mknod(const char *path, mode_t mode, dev_t rdev) { int result; struct fuse_context* pcxt; S3FS_PRN_INFO("[path=%s][mode=%04o][dev=%ju]", path, mode, (uintmax_t)rdev); if(NULL == (pcxt = fuse_get_context())){ return -EIO; } if(0 != (result = create_file_object(path, mode, pcxt->uid, pcxt->gid))){ S3FS_PRN_ERR("could not create object for special file(result=%d)", result); return result; } StatCache::getStatCacheData()->DelStat(path); S3FS_MALLOCTRIM(0); return result; } static int s3fs_create(const char* path, mode_t mode, struct fuse_file_info* fi) { int result; struct fuse_context* pcxt; S3FS_PRN_INFO("[path=%s][mode=%04o][flags=%d]", path, mode, fi->flags); if(NULL == (pcxt = fuse_get_context())){ return -EIO; } // check parent directory attribute. if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } result = check_object_access(path, W_OK, NULL); if(-ENOENT == result){ if(0 != (result = check_parent_object_access(path, W_OK))){ return result; } }else if(0 != result){ return result; } result = create_file_object(path, mode, pcxt->uid, pcxt->gid); StatCache::getStatCacheData()->DelStat(path); if(result != 0){ return result; } FdEntity* ent; headers_t meta; get_object_attribute(path, NULL, &meta); if(NULL == (ent = FdManager::get()->Open(path, &meta, 0, -1, false, true))){ return -EIO; } fi->fh = ent->GetFd(); S3FS_MALLOCTRIM(0); return 0; } static int create_directory_object(const char* path, mode_t mode, time_t time, uid_t uid, gid_t gid) { S3FS_PRN_INFO1("[path=%s][mode=%04o][time=%jd][uid=%u][gid=%u]", path, mode, (intmax_t)time, (unsigned int)uid, (unsigned int)gid); if(!path || '\0' == path[0]){ return -1; } string tpath = path; if('/' != tpath[tpath.length() - 1]){ tpath += "/"; } headers_t meta; meta["Content-Type"] = string("application/x-directory"); meta["x-amz-meta-uid"] = str(uid); meta["x-amz-meta-gid"] = str(gid); meta["x-amz-meta-mode"] = str(mode); meta["x-amz-meta-mtime"] = str(time); S3fsCurl s3fscurl; return s3fscurl.PutRequest(tpath.c_str(), meta, -1); // fd=-1 means for creating zero byte object. } static int s3fs_mkdir(const char* path, mode_t mode) { int result; struct fuse_context* pcxt; S3FS_PRN_INFO("[path=%s][mode=%04o]", path, mode); if(NULL == (pcxt = fuse_get_context())){ return -EIO; } // check parent directory attribute. if(0 != (result = check_parent_object_access(path, W_OK | X_OK))){ return result; } if(-ENOENT != (result = check_object_access(path, F_OK, NULL))){ if(0 == result){ result = -EEXIST; } return result; } result = create_directory_object(path, mode, time(NULL), pcxt->uid, pcxt->gid); StatCache::getStatCacheData()->DelStat(path); S3FS_MALLOCTRIM(0); return result; } static int s3fs_unlink(const char* path) { int result; S3FS_PRN_INFO("[path=%s]", path); if(0 != (result = check_parent_object_access(path, W_OK | X_OK))){ return result; } S3fsCurl s3fscurl; result = s3fscurl.DeleteRequest(path); FdManager::DeleteCacheFile(path); StatCache::getStatCacheData()->DelStat(path); S3FS_MALLOCTRIM(0); return result; } static int directory_empty(const char* path) { int result; S3ObjList head; if((result = list_bucket(path, head, "/", true)) != 0){ S3FS_PRN_ERR("list_bucket returns error."); return result; } if(!head.IsEmpty()){ return -ENOTEMPTY; } return 0; } static int s3fs_rmdir(const char* path) { int result; string strpath; struct stat stbuf; S3FS_PRN_INFO("[path=%s]", path); if(0 != (result = check_parent_object_access(path, W_OK | X_OK))){ return result; } // directory must be empty if(directory_empty(path) != 0){ return -ENOTEMPTY; } strpath = path; if('/' != strpath[strpath.length() - 1]){ strpath += "/"; } S3fsCurl s3fscurl; result = s3fscurl.DeleteRequest(strpath.c_str()); s3fscurl.DestroyCurlHandle(); StatCache::getStatCacheData()->DelStat(strpath.c_str()); // double check for old version(before 1.63) // The old version makes "dir" object, newer version makes "dir/". // A case, there is only "dir", the first removing object is "dir/". // Then "dir/" is not exists, but curl_delete returns 0. // So need to check "dir" and should be removed it. if('/' == strpath[strpath.length() - 1]){ strpath = strpath.substr(0, strpath.length() - 1); } if(0 == get_object_attribute(strpath.c_str(), &stbuf, NULL, false)){ if(S_ISDIR(stbuf.st_mode)){ // Found "dir" object. result = s3fscurl.DeleteRequest(strpath.c_str()); s3fscurl.DestroyCurlHandle(); StatCache::getStatCacheData()->DelStat(strpath.c_str()); } } // If there is no "dir" and "dir/" object(this case is made by s3cmd/s3sync), // the cache key is "dir/". So we get error only onece(delete "dir/"). // check for "_$folder$" object. // This processing is necessary for other S3 clients compatibility. if(is_special_name_folder_object(strpath.c_str())){ strpath += "_$folder$"; result = s3fscurl.DeleteRequest(strpath.c_str()); } S3FS_MALLOCTRIM(0); return result; } static int s3fs_symlink(const char* from, const char* to) { int result; struct fuse_context* pcxt; S3FS_PRN_INFO("[from=%s][to=%s]", from, to); if(NULL == (pcxt = fuse_get_context())){ return -EIO; } if(0 != (result = check_parent_object_access(to, W_OK | X_OK))){ return result; } if(-ENOENT != (result = check_object_access(to, F_OK, NULL))){ if(0 == result){ result = -EEXIST; } return result; } headers_t headers; headers["Content-Type"] = string("application/octet-stream"); // Static headers["x-amz-meta-mode"] = str(S_IFLNK | S_IRWXU | S_IRWXG | S_IRWXO); headers["x-amz-meta-mtime"] = str(time(NULL)); headers["x-amz-meta-uid"] = str(pcxt->uid); headers["x-amz-meta-gid"] = str(pcxt->gid); // open tmpfile FdEntity* ent; if(NULL == (ent = FdManager::get()->Open(to, &headers, 0, -1, true, true))){ S3FS_PRN_ERR("could not open tmpfile(errno=%d)", errno); return -errno; } // write ssize_t from_size = strlen(from); if(from_size != ent->Write(from, 0, from_size)){ S3FS_PRN_ERR("could not write tmpfile(errno=%d)", errno); FdManager::get()->Close(ent); return -errno; } // upload if(0 != (result = ent->Flush(true))){ S3FS_PRN_WARN("could not upload tmpfile(result=%d)", result); } FdManager::get()->Close(ent); StatCache::getStatCacheData()->DelStat(to); S3FS_MALLOCTRIM(0); return result; } static int rename_object(const char* from, const char* to) { int result; string s3_realpath; headers_t meta; S3FS_PRN_INFO1("[from=%s][to=%s]", from , to); if(0 != (result = check_parent_object_access(to, W_OK | X_OK))){ // not permmit writing "to" object parent dir. return result; } if(0 != (result = check_parent_object_access(from, W_OK | X_OK))){ // not permmit removing "from" object parent dir. return result; } if(0 != (result = get_object_attribute(from, NULL, &meta))){ return result; } s3_realpath = get_realpath(from); meta["x-amz-copy-source"] = urlEncode(service_path + bucket + s3_realpath); meta["Content-Type"] = S3fsCurl::LookupMimeType(string(to)); meta["x-amz-metadata-directive"] = "REPLACE"; if(0 != (result = put_headers(to, meta, true))){ return result; } FdManager::get()->Rename(from, to); result = s3fs_unlink(from); StatCache::getStatCacheData()->DelStat(to); return result; } static int rename_object_nocopy(const char* from, const char* to) { int result; S3FS_PRN_INFO1("[from=%s][to=%s]", from , to); if(0 != (result = check_parent_object_access(to, W_OK | X_OK))){ // not permmit writing "to" object parent dir. return result; } if(0 != (result = check_parent_object_access(from, W_OK | X_OK))){ // not permmit removing "from" object parent dir. return result; } // open & load FdEntity* ent; if(NULL == (ent = get_local_fent(from, true))){ S3FS_PRN_ERR("could not open and read file(%s)", from); return -EIO; } // Set header if(!ent->SetContentType(to)){ S3FS_PRN_ERR("could not set content-type for %s", to); return -EIO; } // upload if(0 != (result = ent->RowFlush(to, true))){ S3FS_PRN_ERR("could not upload file(%s): result=%d", to, result); FdManager::get()->Close(ent); return result; } FdManager::get()->Close(ent); // Remove file result = s3fs_unlink(from); // Stats StatCache::getStatCacheData()->DelStat(to); StatCache::getStatCacheData()->DelStat(from); return result; } static int rename_large_object(const char* from, const char* to) { int result; struct stat buf; headers_t meta; S3FS_PRN_INFO1("[from=%s][to=%s]", from , to); if(0 != (result = check_parent_object_access(to, W_OK | X_OK))){ // not permmit writing "to" object parent dir. return result; } if(0 != (result = check_parent_object_access(from, W_OK | X_OK))){ // not permmit removing "from" object parent dir. return result; } if(0 != (result = get_object_attribute(from, &buf, &meta, false))){ return result; } S3fsCurl s3fscurl(true); if(0 != (result = s3fscurl.MultipartRenameRequest(from, to, meta, buf.st_size))){ return result; } s3fscurl.DestroyCurlHandle(); StatCache::getStatCacheData()->DelStat(to); return s3fs_unlink(from); } static int clone_directory_object(const char* from, const char* to) { int result = -1; struct stat stbuf; S3FS_PRN_INFO1("[from=%s][to=%s]", from, to); // get target's attributes if(0 != (result = get_object_attribute(from, &stbuf))){ return result; } result = create_directory_object(to, stbuf.st_mode, stbuf.st_mtime, stbuf.st_uid, stbuf.st_gid); StatCache::getStatCacheData()->DelStat(to); return result; } static int rename_directory(const char* from, const char* to) { S3ObjList head; s3obj_list_t headlist; string strfrom = from ? from : ""; // from is without "/". string strto = to ? to : ""; // to is without "/" too. string basepath = strfrom + "/"; string newpath; // should be from name(not used) string nowcache; // now cache path(not used) int DirType; bool normdir; MVNODE* mn_head = NULL; MVNODE* mn_tail = NULL; MVNODE* mn_cur; struct stat stbuf; int result; bool is_dir; S3FS_PRN_INFO1("[from=%s][to=%s]", from, to); // // Initiate and Add base directory into MVNODE struct. // strto += "/"; if(0 == chk_dir_object_type(from, newpath, strfrom, nowcache, NULL, &DirType) && DIRTYPE_UNKNOWN != DirType){ if(DIRTYPE_NOOBJ != DirType){ normdir = false; }else{ normdir = true; strfrom = from; // from directory is not removed, but from directory attr is needed. } if(NULL == (add_mvnode(&mn_head, &mn_tail, strfrom.c_str(), strto.c_str(), true, normdir))){ return -ENOMEM; } }else{ // Something wrong about "from" directory. } // // get a list of all the objects // // No delimiter is specified, the result(head) is all object keys. // (CommonPrefixes is empty, but all object is listed in Key.) if(0 != (result = list_bucket(basepath.c_str(), head, NULL))){ S3FS_PRN_ERR("list_bucket returns error."); return result; } head.GetNameList(headlist); // get name without "/". S3ObjList::MakeHierarchizedList(headlist, false); // add hierarchized dir. s3obj_list_t::const_iterator liter; for(liter = headlist.begin(); headlist.end() != liter; ++liter){ // make "from" and "to" object name. string from_name = basepath + (*liter); string to_name = strto + (*liter); string etag = head.GetETag((*liter).c_str()); // Check subdirectory. StatCache::getStatCacheData()->HasStat(from_name, etag.c_str()); // Check ETag if(0 != get_object_attribute(from_name.c_str(), &stbuf, NULL)){ S3FS_PRN_WARN("failed to get %s object attribute.", from_name.c_str()); continue; } if(S_ISDIR(stbuf.st_mode)){ is_dir = true; if(0 != chk_dir_object_type(from_name.c_str(), newpath, from_name, nowcache, NULL, &DirType) || DIRTYPE_UNKNOWN == DirType){ S3FS_PRN_WARN("failed to get %s%s object directory type.", basepath.c_str(), (*liter).c_str()); continue; } if(DIRTYPE_NOOBJ != DirType){ normdir = false; }else{ normdir = true; from_name = basepath + (*liter); // from directory is not removed, but from directory attr is needed. } }else{ is_dir = false; normdir = false; } // push this one onto the stack if(NULL == add_mvnode(&mn_head, &mn_tail, from_name.c_str(), to_name.c_str(), is_dir, normdir)){ return -ENOMEM; } } // // rename // // rename directory objects. for(mn_cur = mn_head; mn_cur; mn_cur = mn_cur->next){ if(mn_cur->is_dir && mn_cur->old_path && '\0' != mn_cur->old_path[0]){ if(0 != (result = clone_directory_object(mn_cur->old_path, mn_cur->new_path))){ S3FS_PRN_ERR("clone_directory_object returned an error(%d)", result); free_mvnodes(mn_head); return -EIO; } } } // iterate over the list - copy the files with rename_object // does a safe copy - copies first and then deletes old for(mn_cur = mn_head; mn_cur; mn_cur = mn_cur->next){ if(!mn_cur->is_dir){ if(!nocopyapi && !norenameapi){ result = rename_object(mn_cur->old_path, mn_cur->new_path); }else{ result = rename_object_nocopy(mn_cur->old_path, mn_cur->new_path); } if(0 != result){ S3FS_PRN_ERR("rename_object returned an error(%d)", result); free_mvnodes(mn_head); return -EIO; } } } // Iterate over old the directories, bottoms up and remove for(mn_cur = mn_tail; mn_cur; mn_cur = mn_cur->prev){ if(mn_cur->is_dir && mn_cur->old_path && '\0' != mn_cur->old_path[0]){ if(!(mn_cur->is_normdir)){ if(0 != (result = s3fs_rmdir(mn_cur->old_path))){ S3FS_PRN_ERR("s3fs_rmdir returned an error(%d)", result); free_mvnodes(mn_head); return -EIO; } }else{ // cache clear. StatCache::getStatCacheData()->DelStat(mn_cur->old_path); } } } free_mvnodes(mn_head); return 0; } static int s3fs_rename(const char* from, const char* to) { struct stat buf; int result; S3FS_PRN_INFO("[from=%s][to=%s]", from, to); if(0 != (result = check_parent_object_access(to, W_OK | X_OK))){ // not permmit writing "to" object parent dir. return result; } if(0 != (result = check_parent_object_access(from, W_OK | X_OK))){ // not permmit removing "from" object parent dir. return result; } if(0 != (result = get_object_attribute(from, &buf, NULL))){ return result; } // files larger than 5GB must be modified via the multipart interface if(S_ISDIR(buf.st_mode)){ result = rename_directory(from, to); }else if(!nomultipart && buf.st_size >= singlepart_copy_limit){ result = rename_large_object(from, to); }else{ if(!nocopyapi && !norenameapi){ result = rename_object(from, to); }else{ result = rename_object_nocopy(from, to); } } S3FS_MALLOCTRIM(0); return result; } static int s3fs_link(const char* from, const char* to) { S3FS_PRN_INFO("[from=%s][to=%s]", from, to); return -EPERM; } static int s3fs_chmod(const char* path, mode_t mode) { int result; string strpath; string newpath; string nowcache; headers_t meta; struct stat stbuf; int nDirType = DIRTYPE_UNKNOWN; S3FS_PRN_INFO("[path=%s][mode=%04o]", path, mode); if(0 == strcmp(path, "/")){ S3FS_PRN_ERR("Could not change mode for mount point."); return -EIO; } if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_owner(path, &stbuf))){ return result; } if(S_ISDIR(stbuf.st_mode)){ result = chk_dir_object_type(path, newpath, strpath, nowcache, &meta, &nDirType); }else{ strpath = path; nowcache = strpath; result = get_object_attribute(strpath.c_str(), NULL, &meta); } if(0 != result){ return result; } if(S_ISDIR(stbuf.st_mode) && IS_REPLACEDIR(nDirType)){ // Should rebuild directory object(except new type) // Need to remove old dir("dir" etc) and make new dir("dir/") // At first, remove directory old object if(IS_RMTYPEDIR(nDirType)){ S3fsCurl s3fscurl; if(0 != (result = s3fscurl.DeleteRequest(strpath.c_str()))){ return result; } } StatCache::getStatCacheData()->DelStat(nowcache); // Make new directory object("dir/") if(0 != (result = create_directory_object(newpath.c_str(), mode, stbuf.st_mtime, stbuf.st_uid, stbuf.st_gid))){ return result; } }else{ // normal object or directory object of newer version meta["x-amz-meta-mode"] = str(mode); meta["x-amz-copy-source"] = urlEncode(service_path + bucket + get_realpath(strpath.c_str())); meta["x-amz-metadata-directive"] = "REPLACE"; if(put_headers(strpath.c_str(), meta, true) != 0){ return -EIO; } StatCache::getStatCacheData()->DelStat(nowcache); } S3FS_MALLOCTRIM(0); return 0; } static int s3fs_chmod_nocopy(const char* path, mode_t mode) { int result; string strpath; string newpath; string nowcache; struct stat stbuf; int nDirType = DIRTYPE_UNKNOWN; S3FS_PRN_INFO1("[path=%s][mode=%04o]", path, mode); if(0 == strcmp(path, "/")){ S3FS_PRN_ERR("Could not change mode for maount point."); return -EIO; } if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_owner(path, &stbuf))){ return result; } // Get attributes if(S_ISDIR(stbuf.st_mode)){ result = chk_dir_object_type(path, newpath, strpath, nowcache, NULL, &nDirType); }else{ strpath = path; nowcache = strpath; result = get_object_attribute(strpath.c_str(), NULL, NULL); } if(0 != result){ return result; } if(S_ISDIR(stbuf.st_mode)){ // Should rebuild all directory object // Need to remove old dir("dir" etc) and make new dir("dir/") // At first, remove directory old object if(IS_RMTYPEDIR(nDirType)){ S3fsCurl s3fscurl; if(0 != (result = s3fscurl.DeleteRequest(strpath.c_str()))){ return result; } } StatCache::getStatCacheData()->DelStat(nowcache); // Make new directory object("dir/") if(0 != (result = create_directory_object(newpath.c_str(), mode, stbuf.st_mtime, stbuf.st_uid, stbuf.st_gid))){ return result; } }else{ // normal object or directory object of newer version // open & load FdEntity* ent; if(NULL == (ent = get_local_fent(strpath.c_str(), true))){ S3FS_PRN_ERR("could not open and read file(%s)", strpath.c_str()); return -EIO; } // Change file mode ent->SetMode(mode); // upload if(0 != (result = ent->Flush(true))){ S3FS_PRN_ERR("could not upload file(%s): result=%d", strpath.c_str(), result); FdManager::get()->Close(ent); return result; } FdManager::get()->Close(ent); StatCache::getStatCacheData()->DelStat(nowcache); } S3FS_MALLOCTRIM(0); return result; } static int s3fs_chown(const char* path, uid_t uid, gid_t gid) { int result; string strpath; string newpath; string nowcache; headers_t meta; struct stat stbuf; int nDirType = DIRTYPE_UNKNOWN; S3FS_PRN_INFO("[path=%s][uid=%u][gid=%u]", path, (unsigned int)uid, (unsigned int)gid); if(0 == strcmp(path, "/")){ S3FS_PRN_ERR("Could not change owner for maount point."); return -EIO; } if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_owner(path, &stbuf))){ return result; } if((uid_t)(-1) == uid){ uid = stbuf.st_uid; } if((gid_t)(-1) == gid){ gid = stbuf.st_gid; } if(S_ISDIR(stbuf.st_mode)){ result = chk_dir_object_type(path, newpath, strpath, nowcache, &meta, &nDirType); }else{ strpath = path; nowcache = strpath; result = get_object_attribute(strpath.c_str(), NULL, &meta); } if(0 != result){ return result; } struct passwd* pwdata= getpwuid(uid); struct group* grdata = getgrgid(gid); if(pwdata){ uid = pwdata->pw_uid; } if(grdata){ gid = grdata->gr_gid; } if(S_ISDIR(stbuf.st_mode) && IS_REPLACEDIR(nDirType)){ // Should rebuild directory object(except new type) // Need to remove old dir("dir" etc) and make new dir("dir/") // At first, remove directory old object if(IS_RMTYPEDIR(nDirType)){ S3fsCurl s3fscurl; if(0 != (result = s3fscurl.DeleteRequest(strpath.c_str()))){ return result; } } StatCache::getStatCacheData()->DelStat(nowcache); // Make new directory object("dir/") if(0 != (result = create_directory_object(newpath.c_str(), stbuf.st_mode, stbuf.st_mtime, uid, gid))){ return result; } }else{ meta["x-amz-meta-uid"] = str(uid); meta["x-amz-meta-gid"] = str(gid); meta["x-amz-copy-source"] = urlEncode(service_path + bucket + get_realpath(strpath.c_str())); meta["x-amz-metadata-directive"] = "REPLACE"; if(put_headers(strpath.c_str(), meta, true) != 0){ return -EIO; } StatCache::getStatCacheData()->DelStat(nowcache); } S3FS_MALLOCTRIM(0); return 0; } static int s3fs_chown_nocopy(const char* path, uid_t uid, gid_t gid) { int result; string strpath; string newpath; string nowcache; struct stat stbuf; int nDirType = DIRTYPE_UNKNOWN; S3FS_PRN_INFO1("[path=%s][uid=%u][gid=%u]", path, (unsigned int)uid, (unsigned int)gid); if(0 == strcmp(path, "/")){ S3FS_PRN_ERR("Could not change owner for maount point."); return -EIO; } if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_owner(path, &stbuf))){ return result; } // Get attributes if(S_ISDIR(stbuf.st_mode)){ result = chk_dir_object_type(path, newpath, strpath, nowcache, NULL, &nDirType); }else{ strpath = path; nowcache = strpath; result = get_object_attribute(strpath.c_str(), NULL, NULL); } if(0 != result){ return result; } struct passwd* pwdata= getpwuid(uid); struct group* grdata = getgrgid(gid); if(pwdata){ uid = pwdata->pw_uid; } if(grdata){ gid = grdata->gr_gid; } if(S_ISDIR(stbuf.st_mode)){ // Should rebuild all directory object // Need to remove old dir("dir" etc) and make new dir("dir/") // At first, remove directory old object if(IS_RMTYPEDIR(nDirType)){ S3fsCurl s3fscurl; if(0 != (result = s3fscurl.DeleteRequest(strpath.c_str()))){ return result; } } StatCache::getStatCacheData()->DelStat(nowcache); // Make new directory object("dir/") if(0 != (result = create_directory_object(newpath.c_str(), stbuf.st_mode, stbuf.st_mtime, uid, gid))){ return result; } }else{ // normal object or directory object of newer version // open & load FdEntity* ent; if(NULL == (ent = get_local_fent(strpath.c_str(), true))){ S3FS_PRN_ERR("could not open and read file(%s)", strpath.c_str()); return -EIO; } // Change owner ent->SetUId(uid); ent->SetGId(gid); // upload if(0 != (result = ent->Flush(true))){ S3FS_PRN_ERR("could not upload file(%s): result=%d", strpath.c_str(), result); FdManager::get()->Close(ent); return result; } FdManager::get()->Close(ent); StatCache::getStatCacheData()->DelStat(nowcache); } S3FS_MALLOCTRIM(0); return result; } static int s3fs_utimens(const char* path, const struct timespec ts[2]) { int result; string strpath; string newpath; string nowcache; headers_t meta; struct stat stbuf; int nDirType = DIRTYPE_UNKNOWN; S3FS_PRN_INFO("[path=%s][mtime=%jd]", path, (intmax_t)(ts[1].tv_sec)); if(0 == strcmp(path, "/")){ S3FS_PRN_ERR("Could not change mtime for maount point."); return -EIO; } if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_access(path, W_OK, &stbuf))){ if(0 != check_object_owner(path, &stbuf)){ return result; } } if(S_ISDIR(stbuf.st_mode)){ result = chk_dir_object_type(path, newpath, strpath, nowcache, &meta, &nDirType); }else{ strpath = path; nowcache = strpath; result = get_object_attribute(strpath.c_str(), NULL, &meta); } if(0 != result){ return result; } if(S_ISDIR(stbuf.st_mode) && IS_REPLACEDIR(nDirType)){ // Should rebuild directory object(except new type) // Need to remove old dir("dir" etc) and make new dir("dir/") // At first, remove directory old object if(IS_RMTYPEDIR(nDirType)){ S3fsCurl s3fscurl; if(0 != (result = s3fscurl.DeleteRequest(strpath.c_str()))){ return result; } } StatCache::getStatCacheData()->DelStat(nowcache); // Make new directory object("dir/") if(0 != (result = create_directory_object(newpath.c_str(), stbuf.st_mode, ts[1].tv_sec, stbuf.st_uid, stbuf.st_gid))){ return result; } }else{ meta["x-amz-meta-mtime"] = str(ts[1].tv_sec); meta["x-amz-copy-source"] = urlEncode(service_path + bucket + get_realpath(strpath.c_str())); meta["x-amz-metadata-directive"] = "REPLACE"; if(put_headers(strpath.c_str(), meta, true) != 0){ return -EIO; } StatCache::getStatCacheData()->DelStat(nowcache); } S3FS_MALLOCTRIM(0); return 0; } static int s3fs_utimens_nocopy(const char* path, const struct timespec ts[2]) { int result; string strpath; string newpath; string nowcache; struct stat stbuf; int nDirType = DIRTYPE_UNKNOWN; S3FS_PRN_INFO1("[path=%s][mtime=%s]", path, str(ts[1].tv_sec).c_str()); if(0 == strcmp(path, "/")){ S3FS_PRN_ERR("Could not change mtime for mount point."); return -EIO; } if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_access(path, W_OK, &stbuf))){ if(0 != check_object_owner(path, &stbuf)){ return result; } } // Get attributes if(S_ISDIR(stbuf.st_mode)){ result = chk_dir_object_type(path, newpath, strpath, nowcache, NULL, &nDirType); }else{ strpath = path; nowcache = strpath; result = get_object_attribute(strpath.c_str(), NULL, NULL); } if(0 != result){ return result; } if(S_ISDIR(stbuf.st_mode)){ // Should rebuild all directory object // Need to remove old dir("dir" etc) and make new dir("dir/") // At first, remove directory old object if(IS_RMTYPEDIR(nDirType)){ S3fsCurl s3fscurl; if(0 != (result = s3fscurl.DeleteRequest(strpath.c_str()))){ return result; } } StatCache::getStatCacheData()->DelStat(nowcache); // Make new directory object("dir/") if(0 != (result = create_directory_object(newpath.c_str(), stbuf.st_mode, ts[1].tv_sec, stbuf.st_uid, stbuf.st_gid))){ return result; } }else{ // normal object or directory object of newer version // open & load FdEntity* ent; if(NULL == (ent = get_local_fent(strpath.c_str(), true))){ S3FS_PRN_ERR("could not open and read file(%s)", strpath.c_str()); return -EIO; } // set mtime if(0 != (result = ent->SetMtime(ts[1].tv_sec))){ S3FS_PRN_ERR("could not set mtime to file(%s): result=%d", strpath.c_str(), result); FdManager::get()->Close(ent); return result; } // upload if(0 != (result = ent->Flush(true))){ S3FS_PRN_ERR("could not upload file(%s): result=%d", strpath.c_str(), result); FdManager::get()->Close(ent); return result; } FdManager::get()->Close(ent); StatCache::getStatCacheData()->DelStat(nowcache); } S3FS_MALLOCTRIM(0); return result; } static int s3fs_truncate(const char* path, off_t size) { int result; headers_t meta; FdEntity* ent = NULL; S3FS_PRN_INFO("[path=%s][size=%jd]", path, (intmax_t)size); if(size < 0){ size = 0; } if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_access(path, W_OK, NULL))){ return result; } // Get file information if(0 == (result = get_object_attribute(path, NULL, &meta))){ // Exists -> Get file(with size) if(NULL == (ent = FdManager::get()->Open(path, &meta, static_cast(size), -1, false, true))){ S3FS_PRN_ERR("could not open file(%s): errno=%d", path, errno); return -EIO; } if(0 != (result = ent->Load(0, static_cast(size)))){ S3FS_PRN_ERR("could not download file(%s): result=%d", path, result); FdManager::get()->Close(ent); return result; } }else{ // Not found -> Make tmpfile(with size) struct fuse_context* pcxt; if(NULL == (pcxt = fuse_get_context())){ return -EIO; } meta["Content-Type"] = string("application/octet-stream"); // Static meta["x-amz-meta-mode"] = str(S_IFLNK | S_IRWXU | S_IRWXG | S_IRWXO); meta["x-amz-meta-mtime"] = str(time(NULL)); meta["x-amz-meta-uid"] = str(pcxt->uid); meta["x-amz-meta-gid"] = str(pcxt->gid); if(NULL == (ent = FdManager::get()->Open(path, &meta, static_cast(size), -1, true, true))){ S3FS_PRN_ERR("could not open file(%s): errno=%d", path, errno); return -EIO; } } // upload if(0 != (result = ent->Flush(true))){ S3FS_PRN_ERR("could not upload file(%s): result=%d", path, result); FdManager::get()->Close(ent); return result; } FdManager::get()->Close(ent); StatCache::getStatCacheData()->DelStat(path); S3FS_MALLOCTRIM(0); return result; } static int s3fs_open(const char* path, struct fuse_file_info* fi) { int result; struct stat st; bool needs_flush = false; S3FS_PRN_INFO("[path=%s][flags=%d]", path, fi->flags); // clear stat for reading fresh stat. // (if object stat is changed, we refresh it. then s3fs gets always // stat when s3fs open the object). StatCache::getStatCacheData()->DelStat(path); int mask = (O_RDONLY != (fi->flags & O_ACCMODE) ? W_OK : R_OK); if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } result = check_object_access(path, mask, &st); if(-ENOENT == result){ if(0 != (result = check_parent_object_access(path, W_OK))){ return result; } }else if(0 != result){ return result; } if((unsigned int)fi->flags & O_TRUNC){ if(0 != st.st_size){ st.st_size = 0; needs_flush = true; } } if(!S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)){ st.st_mtime = -1; } FdEntity* ent; headers_t meta; get_object_attribute(path, NULL, &meta); if(NULL == (ent = FdManager::get()->Open(path, &meta, static_cast(st.st_size), st.st_mtime, false, true))){ return -EIO; } if (needs_flush){ if(0 != (result = ent->RowFlush(path, true))){ S3FS_PRN_ERR("could not upload file(%s): result=%d", path, result); FdManager::get()->Close(ent); return result; } } fi->fh = ent->GetFd(); S3FS_MALLOCTRIM(0); return 0; } static int s3fs_read(const char* path, char* buf, size_t size, off_t offset, struct fuse_file_info* fi) { ssize_t res; S3FS_PRN_DBG("[path=%s][size=%zu][offset=%jd][fd=%llu]", path, size, (intmax_t)offset, (unsigned long long)(fi->fh)); FdEntity* ent; if(NULL == (ent = FdManager::get()->ExistOpen(path, static_cast(fi->fh)))){ S3FS_PRN_ERR("could not find opened fd(%s)", path); return -EIO; } if(ent->GetFd() != static_cast(fi->fh)){ S3FS_PRN_WARN("different fd(%d - %llu)", ent->GetFd(), (unsigned long long)(fi->fh)); } // check real file size size_t realsize = 0; if(!ent->GetSize(realsize) || realsize <= 0){ S3FS_PRN_DBG("file size is 0, so break to read."); FdManager::get()->Close(ent); return 0; } if(0 > (res = ent->Read(buf, offset, size, false))){ S3FS_PRN_WARN("failed to read file(%s). result=%zd", path, res); } FdManager::get()->Close(ent); return static_cast(res); } static int s3fs_write(const char* path, const char* buf, size_t size, off_t offset, struct fuse_file_info* fi) { ssize_t res; S3FS_PRN_DBG("[path=%s][size=%zu][offset=%jd][fd=%llu]", path, size, (intmax_t)offset, (unsigned long long)(fi->fh)); FdEntity* ent; if(NULL == (ent = FdManager::get()->ExistOpen(path, static_cast(fi->fh)))){ S3FS_PRN_ERR("could not find opened fd(%s)", path); return -EIO; } if(ent->GetFd() != static_cast(fi->fh)){ S3FS_PRN_WARN("different fd(%d - %llu)", ent->GetFd(), (unsigned long long)(fi->fh)); } if(0 > (res = ent->Write(buf, offset, size))){ S3FS_PRN_WARN("failed to write file(%s). result=%zd", path, res); } FdManager::get()->Close(ent); return static_cast(res); } static int s3fs_statfs(const char* path, struct statvfs* stbuf) { // 256T stbuf->f_bsize = 0X1000000; stbuf->f_blocks = 0X1000000; stbuf->f_bfree = 0x1000000; stbuf->f_bavail = 0x1000000; stbuf->f_namemax = NAME_MAX; return 0; } static int s3fs_flush(const char* path, struct fuse_file_info* fi) { int result; S3FS_PRN_INFO("[path=%s][fd=%llu]", path, (unsigned long long)(fi->fh)); int mask = (O_RDONLY != (fi->flags & O_ACCMODE) ? W_OK : R_OK); if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } result = check_object_access(path, mask, NULL); if(-ENOENT == result){ if(0 != (result = check_parent_object_access(path, W_OK))){ return result; } }else if(0 != result){ return result; } FdEntity* ent; if(NULL != (ent = FdManager::get()->ExistOpen(path, static_cast(fi->fh)))){ ent->UpdateMtime(); result = ent->Flush(false); FdManager::get()->Close(ent); } S3FS_MALLOCTRIM(0); return result; } // [NOTICE] // Assumption is a valid fd. // static int s3fs_fsync(const char* path, int datasync, struct fuse_file_info* fi) { int result = 0; S3FS_PRN_INFO("[path=%s][fd=%llu]", path, (unsigned long long)(fi->fh)); FdEntity* ent; if(NULL != (ent = FdManager::get()->ExistOpen(path, static_cast(fi->fh)))){ if(0 == datasync){ ent->UpdateMtime(); } result = ent->Flush(false); FdManager::get()->Close(ent); } S3FS_MALLOCTRIM(0); // Issue 320: Delete stat cache entry because st_size may have changed. StatCache::getStatCacheData()->DelStat(path); return result; } static int s3fs_release(const char* path, struct fuse_file_info* fi) { S3FS_PRN_INFO("[path=%s][fd=%llu]", path, (unsigned long long)(fi->fh)); // [NOTICE] // At first, we remove stats cache. // Because fuse does not wait for response from "release" function. :-( // And fuse runs next command before this function returns. // Thus we call deleting stats function ASSAP. // if((fi->flags & O_RDWR) || (fi->flags & O_WRONLY)){ StatCache::getStatCacheData()->DelStat(path); } FdEntity* ent; if(NULL == (ent = FdManager::get()->GetFdEntity(path, static_cast(fi->fh)))){ S3FS_PRN_ERR("could not find fd(file=%s)", path); return -EIO; } if(ent->GetFd() != static_cast(fi->fh)){ S3FS_PRN_WARN("different fd(%d - %llu)", ent->GetFd(), (unsigned long long)(fi->fh)); } FdManager::get()->Close(ent); // check - for debug if(IS_S3FS_LOG_DBG()){ if(NULL != (ent = FdManager::get()->GetFdEntity(path, static_cast(fi->fh)))){ S3FS_PRN_WARN("file(%s),fd(%d) is still opened.", path, ent->GetFd()); } } S3FS_MALLOCTRIM(0); return 0; } static int s3fs_opendir(const char* path, struct fuse_file_info* fi) { int result; int mask = (O_RDONLY != (fi->flags & O_ACCMODE) ? W_OK : R_OK) | X_OK; S3FS_PRN_INFO("[path=%s][flags=%d]", path, fi->flags); if(0 == (result = check_object_access(path, mask, NULL))){ result = check_parent_object_access(path, mask); } S3FS_MALLOCTRIM(0); return result; } static bool multi_head_callback(S3fsCurl* s3fscurl) { if(!s3fscurl){ return false; } string saved_path = s3fscurl->GetSpacialSavedPath(); if(!StatCache::getStatCacheData()->AddStat(saved_path, *(s3fscurl->GetResponseHeaders()))){ S3FS_PRN_ERR("failed adding stat cache [path=%s]", saved_path.c_str()); return false; } return true; } static S3fsCurl* multi_head_retry_callback(S3fsCurl* s3fscurl) { if(!s3fscurl){ return NULL; } int ssec_key_pos= s3fscurl->GetLastPreHeadSeecKeyPos(); int retry_count = s3fscurl->GetMultipartRetryCount(); // retry next sse key. // if end of sse key, set retry master count is up. ssec_key_pos = (ssec_key_pos < 0 ? 0 : ssec_key_pos + 1); if(0 == S3fsCurl::GetSseKeyCount() || S3fsCurl::GetSseKeyCount() <= ssec_key_pos){ if(s3fscurl->IsOverMultipartRetryCount()){ S3FS_PRN_ERR("Over retry count(%d) limit(%s).", s3fscurl->GetMultipartRetryCount(), s3fscurl->GetSpacialSavedPath().c_str()); return NULL; } ssec_key_pos= -1; retry_count++; } S3fsCurl* newcurl = new S3fsCurl(s3fscurl->IsUseAhbe()); string path = s3fscurl->GetPath(); string base_path = s3fscurl->GetBasePath(); string saved_path = s3fscurl->GetSpacialSavedPath(); if(!newcurl->PreHeadRequest(path, base_path, saved_path, ssec_key_pos)){ S3FS_PRN_ERR("Could not duplicate curl object(%s).", saved_path.c_str()); delete newcurl; return NULL; } newcurl->SetMultipartRetryCount(retry_count); return newcurl; } static int readdir_multi_head(const char* path, S3ObjList& head, void* buf, fuse_fill_dir_t filler) { S3fsMultiCurl curlmulti; s3obj_list_t headlist; s3obj_list_t fillerlist; int result = 0; S3FS_PRN_INFO1("[path=%s][list=%zu]", path, headlist.size()); // Make base path list. head.GetNameList(headlist, true, false); // get name with "/". // Initialize S3fsMultiCurl curlmulti.SetSuccessCallback(multi_head_callback); curlmulti.SetRetryCallback(multi_head_retry_callback); // Loop while(!headlist.empty()){ s3obj_list_t::iterator iter; long cnt; fillerlist.clear(); // Make single head request(with max). for(iter = headlist.begin(), cnt = 0; headlist.end() != iter && cnt < S3fsMultiCurl::GetMaxMultiRequest(); iter = headlist.erase(iter)){ string disppath = path + (*iter); string etag = head.GetETag((*iter).c_str()); string fillpath = disppath; if('/' == disppath[disppath.length() - 1]){ fillpath = fillpath.substr(0, fillpath.length() -1); } fillerlist.push_back(fillpath); if(StatCache::getStatCacheData()->HasStat(disppath, etag.c_str())){ continue; } // First check for directory, start checking "not SSE-C". // If checking failed, retry to check with "SSE-C" by retry callback func when SSE-C mode. S3fsCurl* s3fscurl = new S3fsCurl(); if(!s3fscurl->PreHeadRequest(disppath, (*iter), disppath)){ // target path = cache key path.(ex "dir/") S3FS_PRN_WARN("Could not make curl object for head request(%s).", disppath.c_str()); delete s3fscurl; continue; } if(!curlmulti.SetS3fsCurlObject(s3fscurl)){ S3FS_PRN_WARN("Could not make curl object into multi curl(%s).", disppath.c_str()); delete s3fscurl; continue; } cnt++; // max request count within S3fsMultiCurl::GetMaxMultiRequest() } // Multi request if(0 != (result = curlmulti.Request())){ // If result is -EIO, it is somthing error occurred. // This case includes that the object is encrypting(SSE) and s3fs does not have keys. // So s3fs set result to 0 in order to continue the process. if(-EIO == result){ S3FS_PRN_WARN("error occuered in multi request(errno=%d), but continue...", result); result = 0; }else{ S3FS_PRN_ERR("error occuered in multi request(errno=%d).", result); break; } } // populate fuse buffer // here is best posision, because a case is cache size < files in directory // for(iter = fillerlist.begin(); fillerlist.end() != iter; ++iter){ struct stat st; string bpath = mybasename((*iter)); if(StatCache::getStatCacheData()->GetStat((*iter), &st)){ filler(buf, bpath.c_str(), &st, 0); }else{ S3FS_PRN_INFO2("Could not find %s file in stat cache.", (*iter).c_str()); filler(buf, bpath.c_str(), 0, 0); } } // reinit for loop. curlmulti.Clear(); } return result; } static int s3fs_readdir(const char* path, void* buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info* fi) { S3ObjList head; int result; S3FS_PRN_INFO("[path=%s]", path); if(0 != (result = check_object_access(path, X_OK, NULL))){ return result; } // get a list of all the objects if((result = list_bucket(path, head, "/")) != 0){ S3FS_PRN_ERR("list_bucket returns error(%d).", result); return result; } // force to add "." and ".." name. filler(buf, ".", 0, 0); filler(buf, "..", 0, 0); if(head.IsEmpty()){ return 0; } // Send multi head request for stats caching. string strpath = path; if(strcmp(path, "/") != 0){ strpath += "/"; } if(0 != (result = readdir_multi_head(strpath.c_str(), head, buf, filler))){ S3FS_PRN_ERR("readdir_multi_head returns error(%d).", result); } S3FS_MALLOCTRIM(0); return result; } static int list_bucket(const char* path, S3ObjList& head, const char* delimiter, bool check_content_only) { int result; string s3_realpath; string query_delimiter;; string query_prefix;; string query_maxkey;; string next_marker = ""; bool truncated = true; S3fsCurl s3fscurl; xmlDocPtr doc; BodyData* body; S3FS_PRN_INFO1("[path=%s]", path); if(delimiter && 0 < strlen(delimiter)){ query_delimiter += "delimiter="; query_delimiter += delimiter; query_delimiter += "&"; } query_prefix += "&prefix="; s3_realpath = get_realpath(path); if(0 == s3_realpath.length() || '/' != s3_realpath[s3_realpath.length() - 1]){ // last word must be "/" query_prefix += urlEncode(s3_realpath.substr(1) + "/"); }else{ query_prefix += urlEncode(s3_realpath.substr(1)); } if (check_content_only){ // Just need to know if there are child objects in dir // For dir with children, expect "dir/" and "dir/child" query_maxkey += "max-keys=2"; }else{ query_maxkey += "max-keys=1000"; } while(truncated){ string each_query = query_delimiter; if(next_marker != ""){ each_query += "marker=" + urlEncode(next_marker) + "&"; next_marker = ""; } each_query += query_maxkey; each_query += query_prefix; // request if(0 != (result = s3fscurl.ListBucketRequest(path, each_query.c_str()))){ S3FS_PRN_ERR("ListBucketRequest returns with error."); return result; } body = s3fscurl.GetBodyData(); // xmlDocPtr if(NULL == (doc = xmlReadMemory(body->str(), static_cast(body->size()), "", NULL, 0))){ S3FS_PRN_ERR("xmlReadMemory returns with error."); return -1; } if(0 != append_objects_from_xml(path, doc, head)){ S3FS_PRN_ERR("append_objects_from_xml returns with error."); xmlFreeDoc(doc); return -1; } if(true == (truncated = is_truncated(doc))){ xmlChar* tmpch = get_next_marker(doc); if(tmpch){ next_marker = (char*)tmpch; xmlFree(tmpch); }else{ // If did not specify "delimiter", s3 did not return "NextMarker". // On this case, can use lastest name for next marker. // string lastname; if(!head.GetLastName(lastname)){ S3FS_PRN_WARN("Could not find next marker, thus break loop."); truncated = false; }else{ next_marker = s3_realpath.substr(1); if(0 == s3_realpath.length() || '/' != s3_realpath[s3_realpath.length() - 1]){ next_marker += "/"; } next_marker += lastname; } } } S3FS_XMLFREEDOC(doc); // reset(initialize) curl object s3fscurl.DestroyCurlHandle(); if (check_content_only) break; } S3FS_MALLOCTRIM(0); return 0; } static const char* c_strErrorObjectName = "FILE or SUBDIR in DIR"; static int append_objects_from_xml_ex(const char* path, xmlDocPtr doc, xmlXPathContextPtr ctx, const char* ex_contents, const char* ex_key, const char* ex_etag, int isCPrefix, S3ObjList& head) { xmlXPathObjectPtr contents_xp; xmlNodeSetPtr content_nodes; if(NULL == (contents_xp = xmlXPathEvalExpression((xmlChar*)ex_contents, ctx))){ S3FS_PRN_ERR("xmlXPathEvalExpression returns null."); return -1; } if(xmlXPathNodeSetIsEmpty(contents_xp->nodesetval)){ S3FS_PRN_WARN("contents_xp->nodesetval is empty."); S3FS_XMLXPATHFREEOBJECT(contents_xp); return 0; } content_nodes = contents_xp->nodesetval; bool is_dir; string stretag; int i; for(i = 0; i < content_nodes->nodeNr; i++){ ctx->node = content_nodes->nodeTab[i]; // object name xmlXPathObjectPtr key; if(NULL == (key = xmlXPathEvalExpression((xmlChar*)ex_key, ctx))){ S3FS_PRN_WARN("key is null. but continue."); continue; } if(xmlXPathNodeSetIsEmpty(key->nodesetval)){ S3FS_PRN_WARN("node is empty. but continue."); xmlXPathFreeObject(key); continue; } xmlNodeSetPtr key_nodes = key->nodesetval; char* name = get_object_name(doc, key_nodes->nodeTab[0]->xmlChildrenNode, path); if(!name){ S3FS_PRN_WARN("name is something wrong. but continue."); }else if((const char*)name != c_strErrorObjectName){ is_dir = isCPrefix ? true : false; stretag = ""; if(!isCPrefix && ex_etag){ // Get ETag xmlXPathObjectPtr ETag; if(NULL != (ETag = xmlXPathEvalExpression((xmlChar*)ex_etag, ctx))){ if(xmlXPathNodeSetIsEmpty(ETag->nodesetval)){ S3FS_PRN_INFO("ETag->nodesetval is empty."); }else{ xmlNodeSetPtr etag_nodes = ETag->nodesetval; xmlChar* petag = xmlNodeListGetString(doc, etag_nodes->nodeTab[0]->xmlChildrenNode, 1); if(petag){ stretag = (char*)petag; xmlFree(petag); } } xmlXPathFreeObject(ETag); } } if(!head.insert(name, (0 < stretag.length() ? stretag.c_str() : NULL), is_dir)){ S3FS_PRN_ERR("insert_object returns with error."); xmlXPathFreeObject(key); xmlXPathFreeObject(contents_xp); free(name); S3FS_MALLOCTRIM(0); return -1; } free(name); }else{ S3FS_PRN_DBG("name is file or subdir in dir. but continue."); } xmlXPathFreeObject(key); } S3FS_XMLXPATHFREEOBJECT(contents_xp); return 0; } static bool GetXmlNsUrl(xmlDocPtr doc, string& nsurl) { static time_t tmLast = 0; // cache for 60 sec. static string strNs(""); bool result = false; if(!doc){ return result; } if((tmLast + 60) < time(NULL)){ // refresh tmLast = time(NULL); strNs = ""; xmlNodePtr pRootNode = xmlDocGetRootElement(doc); if(pRootNode){ xmlNsPtr* nslist = xmlGetNsList(doc, pRootNode); if(nslist){ if(nslist[0] && nslist[0]->href){ strNs = (const char*)(nslist[0]->href); } S3FS_XMLFREE(nslist); } } } if(0 < strNs.size()){ nsurl = strNs; result = true; } return result; } static int append_objects_from_xml(const char* path, xmlDocPtr doc, S3ObjList& head) { string xmlnsurl; string ex_contents = "//"; string ex_key = ""; string ex_cprefix = "//"; string ex_prefix = ""; string ex_etag = ""; if(!doc){ return -1; } // If there is not , use path instead of it. xmlChar* pprefix = get_prefix(doc); string prefix = (pprefix ? (char*)pprefix : path ? path : ""); if(pprefix){ xmlFree(pprefix); } xmlXPathContextPtr ctx = xmlXPathNewContext(doc); if(!noxmlns && GetXmlNsUrl(doc, xmlnsurl)){ xmlXPathRegisterNs(ctx, (xmlChar*)"s3", (xmlChar*)xmlnsurl.c_str()); ex_contents+= "s3:"; ex_key += "s3:"; ex_cprefix += "s3:"; ex_prefix += "s3:"; ex_etag += "s3:"; } ex_contents+= "Contents"; ex_key += "Key"; ex_cprefix += "CommonPrefixes"; ex_prefix += "Prefix"; ex_etag += "ETag"; if(-1 == append_objects_from_xml_ex(prefix.c_str(), doc, ctx, ex_contents.c_str(), ex_key.c_str(), ex_etag.c_str(), 0, head) || -1 == append_objects_from_xml_ex(prefix.c_str(), doc, ctx, ex_cprefix.c_str(), ex_prefix.c_str(), NULL, 1, head) ) { S3FS_PRN_ERR("append_objects_from_xml_ex returns with error."); S3FS_XMLXPATHFREECONTEXT(ctx); return -1; } S3FS_XMLXPATHFREECONTEXT(ctx); return 0; } static xmlChar* get_base_exp(xmlDocPtr doc, const char* exp) { xmlXPathObjectPtr marker_xp; string xmlnsurl; string exp_string = "//"; if(!doc){ return NULL; } xmlXPathContextPtr ctx = xmlXPathNewContext(doc); if(!noxmlns && GetXmlNsUrl(doc, xmlnsurl)){ xmlXPathRegisterNs(ctx, (xmlChar*)"s3", (xmlChar*)xmlnsurl.c_str()); exp_string += "s3:"; } exp_string += exp; if(NULL == (marker_xp = xmlXPathEvalExpression((xmlChar *)exp_string.c_str(), ctx))){ xmlXPathFreeContext(ctx); return NULL; } if(xmlXPathNodeSetIsEmpty(marker_xp->nodesetval)){ S3FS_PRN_ERR("marker_xp->nodesetval is empty."); xmlXPathFreeObject(marker_xp); xmlXPathFreeContext(ctx); return NULL; } xmlNodeSetPtr nodes = marker_xp->nodesetval; xmlChar* result = xmlNodeListGetString(doc, nodes->nodeTab[0]->xmlChildrenNode, 1); xmlXPathFreeObject(marker_xp); xmlXPathFreeContext(ctx); return result; } static xmlChar* get_prefix(xmlDocPtr doc) { return get_base_exp(doc, "Prefix"); } static xmlChar* get_next_marker(xmlDocPtr doc) { return get_base_exp(doc, "NextMarker"); } static bool is_truncated(xmlDocPtr doc) { bool result = false; xmlChar* strTruncate = get_base_exp(doc, "IsTruncated"); if(!strTruncate){ return result; } if(0 == strcasecmp((const char*)strTruncate, "true")){ result = true; } xmlFree(strTruncate); return result; } // return: the pointer to object name on allocated memory. // the pointer to "c_strErrorObjectName".(not allocated) // NULL(a case of something error occurred) static char* get_object_name(xmlDocPtr doc, xmlNodePtr node, const char* path) { // Get full path xmlChar* fullpath = xmlNodeListGetString(doc, node, 1); if(!fullpath){ S3FS_PRN_ERR("could not get object full path name.."); return NULL; } // basepath(path) is as same as fullpath. if(0 == strcmp((char*)fullpath, path)){ xmlFree(fullpath); return (char*)c_strErrorObjectName; } // Make dir path and filename string strdirpath = mydirname(string((char*)fullpath)); string strmybpath = mybasename(string((char*)fullpath)); const char* dirpath = strdirpath.c_str(); const char* mybname = strmybpath.c_str(); const char* basepath= (!path || '\0' == path[0] || '/' != path[0] ? path : &path[1]); xmlFree(fullpath); if(!mybname || '\0' == mybname[0]){ return NULL; } // check subdir & file in subdir if(dirpath && 0 < strlen(dirpath)){ // case of "/" if(0 == strcmp(mybname, "/") && 0 == strcmp(dirpath, "/")){ return (char*)c_strErrorObjectName; } // case of "." if(0 == strcmp(mybname, ".") && 0 == strcmp(dirpath, ".")){ return (char*)c_strErrorObjectName; } // case of ".." if(0 == strcmp(mybname, "..") && 0 == strcmp(dirpath, ".")){ return (char*)c_strErrorObjectName; } // case of "name" if(0 == strcmp(dirpath, ".")){ // OK return strdup(mybname); }else{ if(basepath && 0 == strcmp(dirpath, basepath)){ // OK return strdup(mybname); }else if(basepath && 0 < strlen(basepath) && '/' == basepath[strlen(basepath) - 1] && 0 == strncmp(dirpath, basepath, strlen(basepath) - 1)){ string withdirname = ""; if(strlen(dirpath) > strlen(basepath)){ withdirname = &dirpath[strlen(basepath)]; } if(0 < withdirname.length() && '/' != withdirname[withdirname.length() - 1]){ withdirname += "/"; } withdirname += mybname; return strdup(withdirname.c_str()); } } } // case of something wrong return (char*)c_strErrorObjectName; } static int remote_mountpath_exists(const char* path) { struct stat stbuf; S3FS_PRN_INFO1("[path=%s]", path); // getattr will prefix the path with the remote mountpoint if(0 != get_object_attribute("/", &stbuf, NULL)){ return -1; } if(!S_ISDIR(stbuf.st_mode)){ return -1; } return 0; } static void free_xattrs(xattrs_t& xattrs) { for(xattrs_t::iterator iter = xattrs.begin(); iter != xattrs.end(); xattrs.erase(iter++)){ if(iter->second){ delete iter->second; } } } static bool parse_xattr_keyval(const std::string& xattrpair, string& key, PXATTRVAL& pval) { // parse key and value size_t pos; string tmpval; if(string::npos == (pos = xattrpair.find_first_of(":"))){ S3FS_PRN_ERR("one of xattr pair(%s) is wrong format.", xattrpair.c_str()); return false; } key = xattrpair.substr(0, pos); tmpval = xattrpair.substr(pos + 1); if(!takeout_str_dquart(key) || !takeout_str_dquart(tmpval)){ S3FS_PRN_ERR("one of xattr pair(%s) is wrong format.", xattrpair.c_str()); return false; } pval = new XATTRVAL; pval->length = 0; pval->pvalue = s3fs_decode64(tmpval.c_str(), &pval->length); return true; } static size_t parse_xattrs(const std::string& strxattrs, xattrs_t& xattrs) { xattrs.clear(); // decode string jsonxattrs = urlDecode(strxattrs); // get from "{" to "}" string restxattrs; { size_t startpos = string::npos; size_t endpos = string::npos; if(string::npos != (startpos = jsonxattrs.find_first_of("{"))){ endpos = jsonxattrs.find_last_of("}"); } if(startpos == string::npos || endpos == string::npos || endpos <= startpos){ S3FS_PRN_WARN("xattr header(%s) is not json format.", jsonxattrs.c_str()); return 0; } restxattrs = jsonxattrs.substr(startpos + 1, endpos - (startpos + 1)); } // parse each key:val for(size_t pair_nextpos = restxattrs.find_first_of(","); 0 < restxattrs.length(); restxattrs = (pair_nextpos != string::npos ? restxattrs.substr(pair_nextpos + 1) : string("")), pair_nextpos = restxattrs.find_first_of(",")){ string pair = pair_nextpos != string::npos ? restxattrs.substr(0, pair_nextpos) : restxattrs; string key = ""; PXATTRVAL pval = NULL; if(!parse_xattr_keyval(pair, key, pval)){ // something format error, so skip this. continue; } xattrs[key] = pval; } return xattrs.size(); } static std::string build_xattrs(const xattrs_t& xattrs) { string strxattrs("{"); bool is_set = false; for(xattrs_t::const_iterator iter = xattrs.begin(); iter != xattrs.end(); ++iter){ if(is_set){ strxattrs += ','; }else{ is_set = true; } strxattrs += '\"'; strxattrs += iter->first; strxattrs += "\":\""; if(iter->second){ char* base64val = s3fs_base64((iter->second)->pvalue, (iter->second)->length); if(base64val){ strxattrs += base64val; free(base64val); } } strxattrs += '\"'; } strxattrs += '}'; strxattrs = urlEncode(strxattrs); return strxattrs; } static int set_xattrs_to_header(headers_t& meta, const char* name, const char* value, size_t size, int flags) { string strxattrs; xattrs_t xattrs; headers_t::iterator iter; if(meta.end() == (iter = meta.find("x-amz-meta-xattr"))){ if(XATTR_REPLACE == (flags & XATTR_REPLACE)){ // there is no xattr header but flags is replace, so failure. return -ENOATTR; } }else{ if(XATTR_CREATE == (flags & XATTR_CREATE)){ // found xattr header but flags is only creating, so failure. return -EEXIST; } strxattrs = iter->second; } // get map as xattrs_t parse_xattrs(strxattrs, xattrs); // add name(do not care overwrite and empty name/value) xattrs_t::iterator xiter; if(xattrs.end() != (xiter = xattrs.find(string(name)))){ // found same head. free value. delete xiter->second; } PXATTRVAL pval = new XATTRVAL; pval->length = size; if(0 < size){ if(NULL == (pval->pvalue = (unsigned char*)malloc(size))){ delete pval; free_xattrs(xattrs); return -ENOMEM; } memcpy(pval->pvalue, value, size); }else{ pval->pvalue = NULL; } xattrs[string(name)] = pval; // build new strxattrs(not encoded) and set it to headers_t meta["x-amz-meta-xattr"] = build_xattrs(xattrs); free_xattrs(xattrs); return 0; } #if defined(__APPLE__) static int s3fs_setxattr(const char* path, const char* name, const char* value, size_t size, int flags, uint32_t position) #else static int s3fs_setxattr(const char* path, const char* name, const char* value, size_t size, int flags) #endif { S3FS_PRN_INFO("[path=%s][name=%s][value=%p][size=%zu][flags=%d]", path, name, value, size, flags); if((value && 0 == size) || (!value && 0 < size)){ S3FS_PRN_ERR("Wrong parameter: value(%p), size(%zu)", value, size); return 0; } #if defined(__APPLE__) if (position != 0) { // No resource fork support return -EINVAL; } #endif int result; string strpath; string newpath; string nowcache; headers_t meta; struct stat stbuf; int nDirType = DIRTYPE_UNKNOWN; if(0 == strcmp(path, "/")){ S3FS_PRN_ERR("Could not change mode for mount point."); return -EIO; } if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_owner(path, &stbuf))){ return result; } if(S_ISDIR(stbuf.st_mode)){ result = chk_dir_object_type(path, newpath, strpath, nowcache, &meta, &nDirType); }else{ strpath = path; nowcache = strpath; result = get_object_attribute(strpath.c_str(), NULL, &meta); } if(0 != result){ return result; } // make new header_t if(0 != (result = set_xattrs_to_header(meta, name, value, size, flags))){ return result; } if(S_ISDIR(stbuf.st_mode) && IS_REPLACEDIR(nDirType)){ // Should rebuild directory object(except new type) // Need to remove old dir("dir" etc) and make new dir("dir/") // At first, remove directory old object if(IS_RMTYPEDIR(nDirType)){ S3fsCurl s3fscurl; if(0 != (result = s3fscurl.DeleteRequest(strpath.c_str()))){ return result; } } StatCache::getStatCacheData()->DelStat(nowcache); // Make new directory object("dir/") if(0 != (result = create_directory_object(newpath.c_str(), stbuf.st_mode, stbuf.st_mtime, stbuf.st_uid, stbuf.st_gid))){ return result; } // need to set xattr header for directory. strpath = newpath; nowcache = strpath; } // set xattr all object meta["x-amz-copy-source"] = urlEncode(service_path + bucket + get_realpath(strpath.c_str())); meta["x-amz-metadata-directive"] = "REPLACE"; if(0 != put_headers(strpath.c_str(), meta, true)){ return -EIO; } StatCache::getStatCacheData()->DelStat(nowcache); return 0; } #if defined(__APPLE__) static int s3fs_getxattr(const char* path, const char* name, char* value, size_t size, uint32_t position) #else static int s3fs_getxattr(const char* path, const char* name, char* value, size_t size) #endif { S3FS_PRN_INFO("[path=%s][name=%s][value=%p][size=%zu]", path, name, value, size); if(!path || !name){ return -EIO; } #if defined(__APPLE__) if (position != 0) { // No resource fork support return -EINVAL; } #endif int result; headers_t meta; xattrs_t xattrs; // check parent directory attribute. if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } // get headders if(0 != (result = get_object_attribute(path, NULL, &meta))){ return result; } // get xattrs headers_t::iterator hiter = meta.find("x-amz-meta-xattr"); if(meta.end() == hiter){ // object does not have xattrs return -ENOATTR; } string strxattrs = hiter->second; parse_xattrs(strxattrs, xattrs); // search name string strname = name; xattrs_t::iterator xiter = xattrs.find(strname); if(xattrs.end() == xiter){ // not found name in xattrs free_xattrs(xattrs); return -ENOATTR; } // decode size_t length = 0; unsigned char* pvalue = NULL; if(NULL != xiter->second){ length = xiter->second->length; pvalue = xiter->second->pvalue; } if(0 < size){ if(static_cast(size) < length){ // over buffer size free_xattrs(xattrs); return -ERANGE; } if(pvalue){ memcpy(value, pvalue, length); } } free_xattrs(xattrs); return static_cast(length); } static int s3fs_listxattr(const char* path, char* list, size_t size) { S3FS_PRN_INFO("[path=%s][list=%p][size=%zu]", path, list, size); if(!path){ return -EIO; } int result; headers_t meta; xattrs_t xattrs; // check parent directory attribute. if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } // get headders if(0 != (result = get_object_attribute(path, NULL, &meta))){ return result; } // get xattrs headers_t::iterator iter; if(meta.end() == (iter = meta.find("x-amz-meta-xattr"))){ // object does not have xattrs return 0; } string strxattrs = iter->second; parse_xattrs(strxattrs, xattrs); // calculate total name length size_t total = 0; for(xattrs_t::const_iterator iter = xattrs.begin(); iter != xattrs.end(); ++iter){ if(0 < iter->first.length()){ total += iter->first.length() + 1; } } if(0 == total){ free_xattrs(xattrs); return 0; } // check parameters if(size <= 0){ free_xattrs(xattrs); return total; } if(!list || size < total){ free_xattrs(xattrs); return -ERANGE; } // copy to list char* setpos = list; for(xattrs_t::const_iterator iter = xattrs.begin(); iter != xattrs.end(); ++iter){ if(0 < iter->first.length()){ strcpy(setpos, iter->first.c_str()); setpos = &setpos[strlen(setpos) + 1]; } } free_xattrs(xattrs); return total; } static int s3fs_removexattr(const char* path, const char* name) { S3FS_PRN_INFO("[path=%s][name=%s]", path, name); if(!path || !name){ return -EIO; } int result; string strpath; string newpath; string nowcache; headers_t meta; xattrs_t xattrs; struct stat stbuf; int nDirType = DIRTYPE_UNKNOWN; if(0 == strcmp(path, "/")){ S3FS_PRN_ERR("Could not change mode for mount point."); return -EIO; } if(0 != (result = check_parent_object_access(path, X_OK))){ return result; } if(0 != (result = check_object_owner(path, &stbuf))){ return result; } if(S_ISDIR(stbuf.st_mode)){ result = chk_dir_object_type(path, newpath, strpath, nowcache, &meta, &nDirType); }else{ strpath = path; nowcache = strpath; result = get_object_attribute(strpath.c_str(), NULL, &meta); } if(0 != result){ return result; } // get xattrs headers_t::iterator hiter = meta.find("x-amz-meta-xattr"); if(meta.end() == hiter){ // object does not have xattrs return -ENOATTR; } string strxattrs = hiter->second; parse_xattrs(strxattrs, xattrs); // check name xattrs string strname = name; xattrs_t::iterator xiter = xattrs.find(strname); if(xattrs.end() == xiter){ free_xattrs(xattrs); return -ENOATTR; } // make new header_t after deleting name xattr if(xiter->second){ delete xiter->second; } xattrs.erase(xiter); // build new xattr if(!xattrs.empty()){ meta["x-amz-meta-xattr"] = build_xattrs(xattrs); }else{ meta.erase("x-amz-meta-xattr"); } if(S_ISDIR(stbuf.st_mode) && IS_REPLACEDIR(nDirType)){ // Should rebuild directory object(except new type) // Need to remove old dir("dir" etc) and make new dir("dir/") // At first, remove directory old object if(IS_RMTYPEDIR(nDirType)){ S3fsCurl s3fscurl; if(0 != (result = s3fscurl.DeleteRequest(strpath.c_str()))){ free_xattrs(xattrs); return result; } } StatCache::getStatCacheData()->DelStat(nowcache); // Make new directory object("dir/") if(0 != (result = create_directory_object(newpath.c_str(), stbuf.st_mode, stbuf.st_mtime, stbuf.st_uid, stbuf.st_gid))){ free_xattrs(xattrs); return result; } // need to set xattr header for directory. strpath = newpath; nowcache = strpath; } // set xattr all object meta["x-amz-copy-source"] = urlEncode(service_path + bucket + get_realpath(strpath.c_str())); meta["x-amz-metadata-directive"] = "REPLACE"; if(0 != put_headers(strpath.c_str(), meta, true)){ free_xattrs(xattrs); return -EIO; } StatCache::getStatCacheData()->DelStat(nowcache); free_xattrs(xattrs); return 0; } // s3fs_init calls this function to exit cleanly from the fuse event loop. // // There's no way to pass an exit status to the high-level event loop API, so // this function stores the exit value in a global for main() static void s3fs_exit_fuseloop(int exit_status) { S3FS_PRN_ERR("Exiting FUSE event loop due to errors\n"); s3fs_init_deferred_exit_status = exit_status; struct fuse_context *ctx = fuse_get_context(); if (NULL != ctx) { fuse_exit(ctx->fuse); } } static void* s3fs_init(struct fuse_conn_info* conn) { S3FS_PRN_CRIT("init v%s(commit:%s) with %s", VERSION, COMMIT_HASH_VAL, s3fs_crypt_lib_name()); // cache(remove cache dirs at first) if(is_remove_cache && (!CacheFileStat::DeleteCacheFileStatDirectory() || !FdManager::DeleteCacheDirectory())){ S3FS_PRN_DBG("Could not inilialize cache directory."); } // ssl init if(!s3fs_init_global_ssl()){ S3FS_PRN_CRIT("could not initialize for ssl libraries."); s3fs_exit_fuseloop(EXIT_FAILURE); return NULL; } // init curl if(!S3fsCurl::InitS3fsCurl("/etc/mime.types")){ S3FS_PRN_CRIT("Could not initiate curl library."); s3fs_exit_fuseloop(EXIT_FAILURE); return NULL; } if (create_bucket){ do_create_bucket(); } // Check Bucket // If the network is up, check for valid credentials and if the bucket // exists. skip check if mounting a public bucket if(!S3fsCurl::IsPublicBucket()){ int result; if(EXIT_SUCCESS != (result = s3fs_check_service())){ s3fs_exit_fuseloop(result); return NULL; } } // Investigate system capabilities #ifndef __APPLE__ if((unsigned int)conn->capable & FUSE_CAP_ATOMIC_O_TRUNC){ conn->want |= FUSE_CAP_ATOMIC_O_TRUNC; } #endif return NULL; } static void s3fs_destroy(void*) { S3FS_PRN_INFO("destroy"); // Destroy curl if(!S3fsCurl::DestroyS3fsCurl()){ S3FS_PRN_WARN("Could not release curl library."); } // cache(remove at last) if(is_remove_cache && (!CacheFileStat::DeleteCacheFileStatDirectory() || !FdManager::DeleteCacheDirectory())){ S3FS_PRN_WARN("Could not remove cache directory."); } // ssl s3fs_destroy_global_ssl(); } static int s3fs_access(const char* path, int mask) { S3FS_PRN_INFO("[path=%s][mask=%s%s%s%s]", path, ((mask & R_OK) == R_OK) ? "R_OK " : "", ((mask & W_OK) == W_OK) ? "W_OK " : "", ((mask & X_OK) == X_OK) ? "X_OK " : "", (mask == F_OK) ? "F_OK" : ""); int result = check_object_access(path, mask, NULL); S3FS_MALLOCTRIM(0); return result; } static xmlChar* get_exp_value_xml(xmlDocPtr doc, xmlXPathContextPtr ctx, const char* exp_key) { if(!doc || !ctx || !exp_key){ return NULL; } xmlXPathObjectPtr exp; xmlNodeSetPtr exp_nodes; xmlChar* exp_value; // search exp_key tag if(NULL == (exp = xmlXPathEvalExpression((xmlChar*)exp_key, ctx))){ S3FS_PRN_ERR("Could not find key(%s).", exp_key); return NULL; } if(xmlXPathNodeSetIsEmpty(exp->nodesetval)){ S3FS_PRN_ERR("Key(%s) node is empty.", exp_key); S3FS_XMLXPATHFREEOBJECT(exp); return NULL; } // get exp_key value & set in struct exp_nodes = exp->nodesetval; if(NULL == (exp_value = xmlNodeListGetString(doc, exp_nodes->nodeTab[0]->xmlChildrenNode, 1))){ S3FS_PRN_ERR("Key(%s) value is empty.", exp_key); S3FS_XMLXPATHFREEOBJECT(exp); return NULL; } S3FS_XMLXPATHFREEOBJECT(exp); return exp_value; } static void print_uncomp_mp_list(uncomp_mp_list_t& list) { printf("\n"); printf("Lists the parts that have been uploaded for a specific multipart upload.\n"); printf("\n"); if(!list.empty()){ printf("---------------------------------------------------------------\n"); int cnt = 0; for(uncomp_mp_list_t::iterator iter = list.begin(); iter != list.end(); ++iter, ++cnt){ printf(" Path : %s\n", (*iter).key.c_str()); printf(" UploadId : %s\n", (*iter).id.c_str()); printf(" Date : %s\n", (*iter).date.c_str()); printf("\n"); } printf("---------------------------------------------------------------\n"); }else{ printf("There is no list.\n"); } } static bool abort_uncomp_mp_list(uncomp_mp_list_t& list) { char buff[1024]; if(list.empty()){ return true; } memset(buff, 0, sizeof(buff)); // confirm while(true){ printf("Would you remove all objects? [Y/N]\n"); if(NULL != fgets(buff, sizeof(buff), stdin)){ if(0 == strcasecmp(buff, "Y\n") || 0 == strcasecmp(buff, "YES\n")){ break; }else if(0 == strcasecmp(buff, "N\n") || 0 == strcasecmp(buff, "NO\n")){ return true; } printf("*** please put Y(yes) or N(no).\n"); } } // do removing their. S3fsCurl s3fscurl; bool result = true; for(uncomp_mp_list_t::iterator iter = list.begin(); iter != list.end(); ++iter){ const char* tpath = (*iter).key.c_str(); string upload_id = (*iter).id; if(0 != s3fscurl.AbortMultipartUpload(tpath, upload_id)){ S3FS_PRN_EXIT("Failed to remove %s multipart uploading object.", tpath); result = false; }else{ printf("Succeed to remove %s multipart uploading object.\n", tpath); } // reset(initialize) curl object s3fscurl.DestroyCurlHandle(); } return result; } static bool get_uncomp_mp_list(xmlDocPtr doc, uncomp_mp_list_t& list) { if(!doc){ return false; } xmlXPathContextPtr ctx = xmlXPathNewContext(doc);; string xmlnsurl; string ex_upload = "//"; string ex_key = ""; string ex_id = ""; string ex_date = ""; if(!noxmlns && GetXmlNsUrl(doc, xmlnsurl)){ xmlXPathRegisterNs(ctx, (xmlChar*)"s3", (xmlChar*)xmlnsurl.c_str()); ex_upload += "s3:"; ex_key += "s3:"; ex_id += "s3:"; ex_date += "s3:"; } ex_upload += "Upload"; ex_key += "Key"; ex_id += "UploadId"; ex_date += "Initiated"; // get "Upload" Tags xmlXPathObjectPtr upload_xp; if(NULL == (upload_xp = xmlXPathEvalExpression((xmlChar*)ex_upload.c_str(), ctx))){ S3FS_PRN_ERR("xmlXPathEvalExpression returns null."); return false; } if(xmlXPathNodeSetIsEmpty(upload_xp->nodesetval)){ S3FS_PRN_INFO("upload_xp->nodesetval is empty."); S3FS_XMLXPATHFREEOBJECT(upload_xp); S3FS_XMLXPATHFREECONTEXT(ctx); return true; } // Make list int cnt; xmlNodeSetPtr upload_nodes; list.clear(); for(cnt = 0, upload_nodes = upload_xp->nodesetval; cnt < upload_nodes->nodeNr; cnt++){ ctx->node = upload_nodes->nodeTab[cnt]; UNCOMP_MP_INFO part; xmlChar* ex_value; // search "Key" tag if(NULL == (ex_value = get_exp_value_xml(doc, ctx, ex_key.c_str()))){ continue; } if('/' != *((char*)ex_value)){ part.key = "/"; }else{ part.key = ""; } part.key += (char*)ex_value; S3FS_XMLFREE(ex_value); // search "UploadId" tag if(NULL == (ex_value = get_exp_value_xml(doc, ctx, ex_id.c_str()))){ continue; } part.id = (char*)ex_value; S3FS_XMLFREE(ex_value); // search "Initiated" tag if(NULL == (ex_value = get_exp_value_xml(doc, ctx, ex_date.c_str()))){ continue; } part.date = (char*)ex_value; S3FS_XMLFREE(ex_value); list.push_back(part); } S3FS_XMLXPATHFREEOBJECT(upload_xp); S3FS_XMLXPATHFREECONTEXT(ctx); return true; } static int s3fs_utility_mode(void) { if(!utility_mode){ return EXIT_FAILURE; } // ssl init if(!s3fs_init_global_ssl()){ S3FS_PRN_EXIT("could not initialize for ssl libraries."); return EXIT_FAILURE; } // init curl if(!S3fsCurl::InitS3fsCurl("/etc/mime.types")){ S3FS_PRN_EXIT("Could not initiate curl library."); s3fs_destroy_global_ssl(); return EXIT_FAILURE; } printf("Utility Mode\n"); S3fsCurl s3fscurl; string body; int result = EXIT_SUCCESS; if(0 != s3fscurl.MultipartListRequest(body)){ S3FS_PRN_EXIT("Could not get list multipart upload."); result = EXIT_FAILURE; }else{ // perse result(uncomplete multipart upload information) S3FS_PRN_DBG("response body = {\n%s\n}", body.c_str()); xmlDocPtr doc; if(NULL == (doc = xmlReadMemory(body.c_str(), static_cast(body.size()), "", NULL, 0))){ S3FS_PRN_DBG("xmlReadMemory exited with error."); result = EXIT_FAILURE; }else{ // make working uploads list uncomp_mp_list_t list; if(!get_uncomp_mp_list(doc, list)){ S3FS_PRN_DBG("get_uncomp_mp_list exited with error."); result = EXIT_FAILURE; }else{ // print list print_uncomp_mp_list(list); // remove if(!abort_uncomp_mp_list(list)){ S3FS_PRN_DBG("an error occurred during removal process."); result = EXIT_FAILURE; } } S3FS_XMLFREEDOC(doc); } } // Destroy curl if(!S3fsCurl::DestroyS3fsCurl()){ S3FS_PRN_WARN("Could not release curl library."); } // ssl s3fs_destroy_global_ssl(); return result; } // // If calling with wrong region, s3fs gets following error body as 400 erro code. // "AuthorizationHeaderMalformedThe authorization header is // malformed; the region 'us-east-1' is wrong; expecting 'ap-northeast-1' // ap-northeast-1...... // " // // So this is cheep codes but s3fs should get correct reagion automatically. // static bool check_region_error(const char* pbody, string& expectregion) { if(!pbody){ return false; } const char* region; const char* regionend; if(NULL == (region = strcasestr(pbody, "The authorization header is malformed; the region "))){ return false; } if(NULL == (region = strcasestr(region, "expecting \'"))){ return false; } region += strlen("expecting \'"); if(NULL == (regionend = strchr(region, '\''))){ return false; } string strtmp(region, (regionend - region)); if(0 == strtmp.length()){ return false; } expectregion = strtmp; return true; } static int s3fs_check_service(void) { S3FS_PRN_INFO("check services."); // At first time for access S3, we check IAM role if it sets. if(!S3fsCurl::CheckIAMCredentialUpdate()){ S3FS_PRN_CRIT("Failed to check IAM role name(%s).", S3fsCurl::GetIAMRole()); return EXIT_FAILURE; } S3fsCurl s3fscurl; int res; if(0 > (res = s3fscurl.CheckBucket())){ // get response code long responseCode = s3fscurl.GetLastResponseCode(); // check wrong endpoint, and automatically switch endpoint if(responseCode == 400 && !is_specified_endpoint){ // check region error BodyData* body = s3fscurl.GetBodyData(); string expectregion; if(check_region_error(body->str(), expectregion)){ // not specified endpoint, so try to connect to expected region. S3FS_PRN_CRIT("Could not connect wrong region %s, so retry to connect region %s.", endpoint.c_str(), expectregion.c_str()); endpoint = expectregion; if(S3fsCurl::IsSignatureV4()){ if(host == "http://s3.amazonaws.com"){ host = "http://s3-" + endpoint + ".amazonaws.com"; }else if(host == "https://s3.amazonaws.com"){ host = "https://s3-" + endpoint + ".amazonaws.com"; } } // retry to check with new endpoint s3fscurl.DestroyCurlHandle(); res = s3fscurl.CheckBucket(); responseCode = s3fscurl.GetLastResponseCode(); } } // try signature v2 if(0 > res && (responseCode == 400 || responseCode == 403) && S3fsCurl::IsSignatureV4()){ // switch sigv2 S3FS_PRN_WARN("Could not connect, so retry to connect by signature version 2."); S3fsCurl::SetSignatureV4(false); // retry to check with sigv2 s3fscurl.DestroyCurlHandle(); res = s3fscurl.CheckBucket(); responseCode = s3fscurl.GetLastResponseCode(); } // check errors(after retrying) if(0 > res && responseCode != 200 && responseCode != 301){ if(responseCode == 400){ S3FS_PRN_CRIT("Bad Request - result of checking service."); return EXIT_FAILURE; } if(responseCode == 403){ S3FS_PRN_CRIT("invalid credentials - result of checking service."); return EXIT_FAILURE; } if(responseCode == 404){ S3FS_PRN_CRIT("bucket not found - result of checking service."); return EXIT_FAILURE; } // unable to connect if(responseCode == CURLE_OPERATION_TIMEDOUT){ S3FS_PRN_CRIT("unable to connect bucket and timeout - result of checking service."); return EXIT_FAILURE; } // another error S3FS_PRN_CRIT("unable to connect - result of checking service."); return EXIT_FAILURE; } } // make sure remote mountpath exists and is a directory if(mount_prefix.size() > 0){ if(remote_mountpath_exists(mount_prefix.c_str()) != 0){ S3FS_PRN_CRIT("remote mountpath %s not found.", mount_prefix.c_str()); return EXIT_FAILURE; } } S3FS_MALLOCTRIM(0); return EXIT_SUCCESS; } // Return: 1 - OK(could read and set accesskey etc.) // 0 - NG(could not read) // -1 - Should shoutdown immidiatly static int check_for_aws_format(void) { size_t first_pos = string::npos; string line; bool got_access_key_id_line = 0; bool got_secret_key_line = 0; string str1 ("AWSAccessKeyId="); string str2 ("AWSSecretKey="); size_t found; string AccessKeyId; string SecretAccesskey; ifstream PF(passwd_file.c_str()); if(PF.good()){ while (getline(PF, line)){ if(line[0]=='#'){ continue; } if(line.size() == 0){ continue; } if('\r' == line[line.size() - 1]){ line = line.substr(0, line.size() - 1); if(line.size() == 0){ continue; } } first_pos = line.find_first_of(" \t"); if(first_pos != string::npos){ S3FS_PRN_EXIT("invalid line in passwd file, found whitespace character."); return -1; } first_pos = line.find_first_of("["); if(first_pos != string::npos && first_pos == 0){ S3FS_PRN_EXIT("invalid line in passwd file, found a bracket \"[\" character."); return -1; } found = line.find(str1); if(found != string::npos){ first_pos = line.find_first_of("="); AccessKeyId = line.substr(first_pos + 1, string::npos); got_access_key_id_line = 1; continue; } found = line.find(str2); if(found != string::npos){ first_pos = line.find_first_of("="); SecretAccesskey = line.substr(first_pos + 1, string::npos); got_secret_key_line = 1; continue; } } } if(got_access_key_id_line && got_secret_key_line){ if(!S3fsCurl::SetAccessKey(AccessKeyId.c_str(), SecretAccesskey.c_str())){ S3FS_PRN_EXIT("if one access key is specified, both keys need to be specified."); return 0; } return 1; }else{ return 0; } } // // check_passwd_file_perms // // expect that global passwd_file variable contains // a non-empty value and is readable by the current user // // Check for too permissive access to the file // help save users from themselves via a security hole // // only two options: return or error out // static int check_passwd_file_perms(void) { struct stat info; // let's get the file info if(stat(passwd_file.c_str(), &info) != 0){ S3FS_PRN_EXIT("unexpected error from stat(%s).", passwd_file.c_str()); return EXIT_FAILURE; } // return error if any file has others permissions if( (info.st_mode & S_IROTH) || (info.st_mode & S_IWOTH) || (info.st_mode & S_IXOTH)) { S3FS_PRN_EXIT("credentials file %s should not have others permissions.", passwd_file.c_str()); return EXIT_FAILURE; } // Any local file should not have any group permissions // /etc/passwd-s3fs can have group permissions if(passwd_file != "/etc/passwd-s3fs"){ if( (info.st_mode & S_IRGRP) || (info.st_mode & S_IWGRP) || (info.st_mode & S_IXGRP)) { S3FS_PRN_EXIT("credentials file %s should not have group permissions.", passwd_file.c_str()); return EXIT_FAILURE; } }else{ // "/etc/passwd-s3fs" does not allow group write. if((info.st_mode & S_IWGRP)){ S3FS_PRN_EXIT("credentials file %s should not have group writable permissions.", passwd_file.c_str()); return EXIT_FAILURE; } } if((info.st_mode & S_IXUSR) || (info.st_mode & S_IXGRP)){ S3FS_PRN_EXIT("credentials file %s should not have executable permissions.", passwd_file.c_str()); return EXIT_FAILURE; } return EXIT_SUCCESS; } // // read_passwd_file // // Support for per bucket credentials // // Format for the credentials file: // [bucket:]AccessKeyId:SecretAccessKey // // Lines beginning with # are considered comments // and ignored, as are empty lines // // Uncommented lines without the ":" character are flagged as // an error, so are lines with spaces or tabs // // only one default key pair is allowed, but not required // static int read_passwd_file(void) { string line; string field1, field2, field3; size_t first_pos = string::npos; size_t last_pos = string::npos; bool default_found = 0; int aws_format; // if you got here, the password file // exists and is readable by the // current user, check for permissions if(EXIT_SUCCESS != check_passwd_file_perms()){ return EXIT_FAILURE; } aws_format = check_for_aws_format(); if(1 == aws_format){ return EXIT_SUCCESS; }else if(-1 == aws_format){ return EXIT_FAILURE; } ifstream PF(passwd_file.c_str()); if(PF.good()){ while (getline(PF, line)){ if(line[0]=='#'){ continue; } if(line.size() == 0){ continue; } if('\r' == line[line.size() - 1]){ line = line.substr(0, line.size() - 1); if(line.size() == 0){ continue; } } first_pos = line.find_first_of(" \t"); if(first_pos != string::npos){ S3FS_PRN_EXIT("invalid line in passwd file, found whitespace character."); return EXIT_FAILURE; } first_pos = line.find_first_of("["); if(first_pos != string::npos && first_pos == 0){ S3FS_PRN_EXIT("invalid line in passwd file, found a bracket \"[\" character."); return EXIT_FAILURE; } first_pos = line.find_first_of(":"); if(first_pos == string::npos){ S3FS_PRN_EXIT("invalid line in passwd file, no \":\" separator found."); return EXIT_FAILURE; } last_pos = line.find_last_of(":"); if(first_pos != last_pos){ // bucket specified field1 = line.substr(0,first_pos); field2 = line.substr(first_pos + 1, last_pos - first_pos - 1); field3 = line.substr(last_pos + 1, string::npos); }else{ // no bucket specified - original style - found default key if(default_found == 1){ S3FS_PRN_EXIT("more than one default key pair found in passwd file."); return EXIT_FAILURE; } default_found = 1; field1.assign(""); field2 = line.substr(0,first_pos); field3 = line.substr(first_pos + 1, string::npos); if(!S3fsCurl::SetAccessKey(field2.c_str(), field3.c_str())){ S3FS_PRN_EXIT("if one access key is specified, both keys need to be specified."); return EXIT_FAILURE; } } // does the bucket we are mounting match this passwd file entry? // if so, use that key pair, otherwise use the default key, if found, // will be used if(field1.size() != 0 && field1 == bucket){ if(!S3fsCurl::SetAccessKey(field2.c_str(), field3.c_str())){ S3FS_PRN_EXIT("if one access key is specified, both keys need to be specified."); return EXIT_FAILURE; } break; } } } return EXIT_SUCCESS; } // // get_access_keys // // called only when were are not mounting a // public bucket // // Here is the order precedence for getting the // keys: // // 1 - from the command line (security risk) // 2 - from a password file specified on the command line // 3 - from environment variables // 4 - from the users ~/.passwd-s3fs // 5 - from /etc/passwd-s3fs // static int get_access_keys(void) { // should be redundant if(S3fsCurl::IsPublicBucket()){ return EXIT_SUCCESS; } // 1 - keys specified on the command line if(S3fsCurl::IsSetAccessKeyId()){ return EXIT_SUCCESS; } // 2 - was specified on the command line if(passwd_file.size() > 0){ ifstream PF(passwd_file.c_str()); if(PF.good()){ PF.close(); return read_passwd_file(); }else{ S3FS_PRN_EXIT("specified passwd_file is not readable."); return EXIT_FAILURE; } } // 3 - environment variables char* AWSACCESSKEYID = getenv("AWSACCESSKEYID"); char* AWSSECRETACCESSKEY = getenv("AWSSECRETACCESSKEY"); if(AWSACCESSKEYID != NULL || AWSSECRETACCESSKEY != NULL){ if( (AWSACCESSKEYID == NULL && AWSSECRETACCESSKEY != NULL) || (AWSACCESSKEYID != NULL && AWSSECRETACCESSKEY == NULL) ){ S3FS_PRN_EXIT("if environment variable AWSACCESSKEYID is set then AWSSECRETACCESSKEY must be set too."); return EXIT_FAILURE; } if(!S3fsCurl::SetAccessKey(AWSACCESSKEYID, AWSSECRETACCESSKEY)){ S3FS_PRN_EXIT("if one access key is specified, both keys need to be specified."); return EXIT_FAILURE; } return EXIT_SUCCESS; } // 3a - from the AWS_CREDENTIAL_FILE environment variable char * AWS_CREDENTIAL_FILE; AWS_CREDENTIAL_FILE = getenv("AWS_CREDENTIAL_FILE"); if(AWS_CREDENTIAL_FILE != NULL){ passwd_file.assign(AWS_CREDENTIAL_FILE); if(passwd_file.size() > 0){ ifstream PF(passwd_file.c_str()); if(PF.good()){ PF.close(); return read_passwd_file(); }else{ S3FS_PRN_EXIT("AWS_CREDENTIAL_FILE: \"%s\" is not readable.", passwd_file.c_str()); return EXIT_FAILURE; } } } // 4 - from the default location in the users home directory char * HOME; HOME = getenv ("HOME"); if(HOME != NULL){ passwd_file.assign(HOME); passwd_file.append("/.passwd-s3fs"); ifstream PF(passwd_file.c_str()); if(PF.good()){ PF.close(); if(EXIT_SUCCESS != read_passwd_file()){ return EXIT_FAILURE; } // It is possible that the user's file was there but // contained no key pairs i.e. commented out // in that case, go look in the final location if(S3fsCurl::IsSetAccessKeyId()){ return EXIT_SUCCESS; } } } // 5 - from the system default location passwd_file.assign("/etc/passwd-s3fs"); ifstream PF(passwd_file.c_str()); if(PF.good()){ PF.close(); return read_passwd_file(); } S3FS_PRN_EXIT("could not determine how to establish security credentials."); return EXIT_FAILURE; } // // Check & Set attributes for mount point. // static int set_moutpoint_attribute(struct stat& mpst) { mp_uid = geteuid(); mp_gid = getegid(); mp_mode = S_IFDIR | (allow_other ? (is_mp_umask ? (~mp_umask & (S_IRWXU | S_IRWXG | S_IRWXO)) : (S_IRWXU | S_IRWXG | S_IRWXO)) : S_IRWXU); S3FS_PRN_INFO2("PROC(uid=%u, gid=%u) - MountPoint(uid=%u, gid=%u, mode=%04o)", (unsigned int)mp_uid, (unsigned int)mp_gid, (unsigned int)(mpst.st_uid), (unsigned int)(mpst.st_gid), mpst.st_mode); // check owner if(0 == mp_uid || mpst.st_uid == mp_uid){ return true; } // check group permission if(mpst.st_gid == mp_gid || 1 == is_uid_inculde_group(mp_uid, mpst.st_gid)){ if(S_IRWXG == (mpst.st_mode & S_IRWXG)){ return true; } } // check other permission if(S_IRWXO == (mpst.st_mode & S_IRWXO)){ return true; } return false; } // This is repeatedly called by the fuse option parser // if the key is equal to FUSE_OPT_KEY_OPT, it's an option passed in prefixed by // '-' or '--' e.g.: -f -d -ousecache=/tmp // // if the key is equal to FUSE_OPT_KEY_NONOPT, it's either the bucket name // or the mountpoint. The bucket name will always come before the mountpoint static int my_fuse_opt_proc(void* data, const char* arg, int key, struct fuse_args* outargs) { if(key == FUSE_OPT_KEY_NONOPT){ // the first NONOPT option is the bucket name if(bucket.size() == 0){ // extract remote mount path char *bucket_name = (char*)arg; if(strstr(arg, ":")){ bucket = strtok(bucket_name, ":"); char* pmount_prefix = strtok(NULL, ":"); if(pmount_prefix){ if(0 == strlen(pmount_prefix) || '/' != pmount_prefix[0]){ S3FS_PRN_EXIT("path(%s) must be prefix \"/\".", pmount_prefix); return -1; } mount_prefix = pmount_prefix; // remove trailing slash if(mount_prefix.at(mount_prefix.size() - 1) == '/'){ mount_prefix = mount_prefix.substr(0, mount_prefix.size() - 1); } } }else{ bucket = arg; } return 0; } // the second NONPOT option is the mountpoint(not utility mode) if(0 == mountpoint.size() && 0 == utility_mode){ // save the mountpoint and do some basic error checking mountpoint = arg; struct stat stbuf; if(stat(arg, &stbuf) == -1){ S3FS_PRN_EXIT("unable to access MOUNTPOINT %s: %s", mountpoint.c_str(), strerror(errno)); return -1; } if(!(S_ISDIR(stbuf.st_mode))){ S3FS_PRN_EXIT("MOUNTPOINT: %s is not a directory.", mountpoint.c_str()); return -1; } if(!set_moutpoint_attribute(stbuf)){ S3FS_PRN_EXIT("MOUNTPOINT: %s permission denied.", mountpoint.c_str()); return -1; } if(!nonempty){ struct dirent *ent; DIR *dp = opendir(mountpoint.c_str()); if(dp == NULL){ S3FS_PRN_EXIT("failed to open MOUNTPOINT: %s: %s", mountpoint.c_str(), strerror(errno)); return -1; } while((ent = readdir(dp)) != NULL){ if(strcmp(ent->d_name, ".") != 0 && strcmp(ent->d_name, "..") != 0){ closedir(dp); S3FS_PRN_EXIT("MOUNTPOINT directory %s is not empty. if you are sure this is safe, can use the 'nonempty' mount option.", mountpoint.c_str()); return -1; } } closedir(dp); } return 1; } // Unknow option if(0 == utility_mode){ S3FS_PRN_EXIT("specified unknown third optioni(%s).", arg); }else{ S3FS_PRN_EXIT("specified unknown second optioni(%s). you don't need to specify second option(mountpoint) for utility mode(-u).", arg); } return -1; }else if(key == FUSE_OPT_KEY_OPT){ if(0 == STR2NCMP(arg, "uid=")){ s3fs_uid = get_uid(strchr(arg, '=') + sizeof(char)); if(0 != geteuid() && 0 == s3fs_uid){ S3FS_PRN_EXIT("root user can only specify uid=0."); return -1; } is_s3fs_uid = true; return 1; // continue for fuse option } if(0 == STR2NCMP(arg, "gid=")){ s3fs_gid = get_gid(strchr(arg, '=') + sizeof(char)); if(0 != getegid() && 0 == s3fs_gid){ S3FS_PRN_EXIT("root user can only specify gid=0."); return -1; } is_s3fs_gid = true; return 1; // continue for fuse option } if(0 == STR2NCMP(arg, "umask=")){ s3fs_umask = strtol(strchr(arg, '=') + sizeof(char), NULL, 0); s3fs_umask &= (S_IRWXU | S_IRWXG | S_IRWXO); is_s3fs_umask = true; return 1; // continue for fuse option } if(0 == strcmp(arg, "allow_other")){ allow_other = true; return 1; // continue for fuse option } if(0 == STR2NCMP(arg, "mp_umask=")){ mp_umask = strtol(strchr(arg, '=') + sizeof(char), NULL, 0); mp_umask &= (S_IRWXU | S_IRWXG | S_IRWXO); is_mp_umask = true; return 0; } if(0 == STR2NCMP(arg, "default_acl=")){ const char* acl = strchr(arg, '=') + sizeof(char); S3fsCurl::SetDefaultAcl(acl); return 0; } if(0 == STR2NCMP(arg, "retries=")){ S3fsCurl::SetRetries(static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char)))); return 0; } if(0 == STR2NCMP(arg, "use_cache=")){ if(!FdManager::SetCacheDir(strchr(arg, '=') + sizeof(char))){ S3FS_PRN_EXIT("cache directory(%s) is specified, but it does not exist or is not directory.", strchr(arg, '=') + sizeof(char)); return -1; } return 0; } if(0 == strcmp(arg, "del_cache")){ is_remove_cache = true; return 0; } if(0 == STR2NCMP(arg, "multireq_max=")){ long maxreq = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))); S3fsMultiCurl::SetMaxMultiRequest(maxreq); return 0; } if(0 == strcmp(arg, "nonempty")){ nonempty = true; return 1; // need to continue for fuse. } if(0 == strcmp(arg, "nomultipart")){ nomultipart = true; return 0; } // old format for storage_class if(0 == strcmp(arg, "use_rrs") || 0 == STR2NCMP(arg, "use_rrs=")){ off_t rrs = 1; // for an old format. if(0 == STR2NCMP(arg, "use_rrs=")){ rrs = s3fs_strtoofft(strchr(arg, '=') + sizeof(char)); } if(0 == rrs){ S3fsCurl::SetStorageClass(STANDARD); }else if(1 == rrs){ S3fsCurl::SetStorageClass(REDUCED_REDUNDANCY); }else{ S3FS_PRN_EXIT("poorly formed argument to option: use_rrs"); return -1; } return 0; } if(0 == STR2NCMP(arg, "storage_class=")){ const char *storage_class = strchr(arg, '=') + sizeof(char); if(0 == strcmp(storage_class, "standard")){ S3fsCurl::SetStorageClass(STANDARD); }else if(0 == strcmp(storage_class, "standard_ia")){ S3fsCurl::SetStorageClass(STANDARD_IA); }else if(0 == strcmp(storage_class, "reduced_redundancy")){ S3fsCurl::SetStorageClass(REDUCED_REDUNDANCY); }else{ S3FS_PRN_EXIT("unknown value for storage_class: %s", storage_class); return -1; } return 0; } // // [NOTE] // use_sse Set Server Side Encrypting type to SSE-S3 // use_sse=1 // use_sse=file Set Server Side Encrypting type to Custom key(SSE-C) and load custom keys // use_sse=custom(c):file // use_sse=custom(c) Set Server Side Encrypting type to Custom key(SSE-C) // use_sse=kmsid(k):kms-key-id Set Server Side Encrypting type to AWS Key Management key id(SSE-KMS) and load KMS id // use_sse=kmsid(k) Set Server Side Encrypting type to AWS Key Management key id(SSE-KMS) // // load_sse_c=file Load Server Side Encrypting custom keys // // AWSSSECKEYS Loaing Environment for Server Side Encrypting custom keys // AWSSSEKMSID Loaing Environment for Server Side Encrypting Key id // if(0 == STR2NCMP(arg, "use_sse")){ if(0 == strcmp(arg, "use_sse") || 0 == strcmp(arg, "use_sse=1")){ // use_sse=1 is old type paraemter // sse type is SSE_S3 if(!S3fsCurl::IsSseDisable() && !S3fsCurl::IsSseS3Type()){ S3FS_PRN_EXIT("already set SSE another type, so confrict use_sse option or environment."); return -1; } S3fsCurl::SetSseType(SSE_S3); }else if(0 == strcmp(arg, "use_sse=kmsid") || 0 == strcmp(arg, "use_sse=k")){ // sse type is SSE_KMS with out kmsid(expecting id is loaded by environment) if(!S3fsCurl::IsSseDisable() && !S3fsCurl::IsSseKmsType()){ S3FS_PRN_EXIT("already set SSE another type, so confrict use_sse option or environment."); return -1; } if(!S3fsCurl::IsSetSseKmsId()){ S3FS_PRN_EXIT("use_sse=kms but not loaded kms id by environemnt."); return -1; } S3fsCurl::SetSseType(SSE_KMS); }else if(0 == STR2NCMP(arg, "use_sse=kmsid:") || 0 == STR2NCMP(arg, "use_sse=k:")){ // sse type is SSE_KMS with kmsid if(!S3fsCurl::IsSseDisable() && !S3fsCurl::IsSseKmsType()){ S3FS_PRN_EXIT("already set SSE another type, so confrict use_sse option or environment."); return -1; } const char* kmsid; if(0 == STR2NCMP(arg, "use_sse=kmsid:")){ kmsid = &arg[strlen("use_sse=kmsid:")]; }else{ kmsid = &arg[strlen("use_sse=k:")]; } if(!S3fsCurl::SetSseKmsid(kmsid)){ S3FS_PRN_EXIT("failed to load use_sse kms id."); return -1; } S3fsCurl::SetSseType(SSE_KMS); }else if(0 == strcmp(arg, "use_sse=custom") || 0 == strcmp(arg, "use_sse=c")){ // sse type is SSE_C with out custom keys(expecting keays are loaded by environment or load_sse_c option) if(!S3fsCurl::IsSseDisable() && !S3fsCurl::IsSseCType()){ S3FS_PRN_EXIT("already set SSE another type, so confrict use_sse option or environment."); return -1; } // [NOTE] // do not check ckeys exists here. // S3fsCurl::SetSseType(SSE_C); }else if(0 == STR2NCMP(arg, "use_sse=custom:") || 0 == STR2NCMP(arg, "use_sse=c:")){ // sse type is SSE_C with custom keys if(!S3fsCurl::IsSseDisable() && !S3fsCurl::IsSseCType()){ S3FS_PRN_EXIT("already set SSE another type, so confrict use_sse option or environment."); return -1; } const char* ssecfile; if(0 == STR2NCMP(arg, "use_sse=custom:")){ ssecfile = &arg[strlen("use_sse=custom:")]; }else{ ssecfile = &arg[strlen("use_sse=c:")]; } if(!S3fsCurl::SetSseCKeys(ssecfile)){ S3FS_PRN_EXIT("failed to load use_sse custom key file(%s).", ssecfile); return -1; } S3fsCurl::SetSseType(SSE_C); }else if(0 == strcmp(arg, "use_sse=")){ // this type is old style(paraemter is custom key file path) // SSE_C with custom keys. const char* ssecfile = &arg[strlen("use_sse=")]; if(!S3fsCurl::SetSseCKeys(ssecfile)){ S3FS_PRN_EXIT("failed to load use_sse custom key file(%s).", ssecfile); return -1; } S3fsCurl::SetSseType(SSE_C); }else{ // never come here. S3FS_PRN_EXIT("something wrong use_sse optino."); return -1; } return 0; } // [NOTE] // Do only load SSE custom keys, care for set without set sse type. if(0 == STR2NCMP(arg, "load_sse_c=")){ const char* ssecfile = &arg[strlen("load_sse_c=")]; if(!S3fsCurl::SetSseCKeys(ssecfile)){ S3FS_PRN_EXIT("failed to load use_sse custom key file(%s).", ssecfile); return -1; } } if(0 == STR2NCMP(arg, "ssl_verify_hostname=")){ long sslvh = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))); if(-1 == S3fsCurl::SetSslVerifyHostname(sslvh)){ S3FS_PRN_EXIT("poorly formed argument to option: ssl_verify_hostname."); return -1; } return 0; } if(0 == STR2NCMP(arg, "passwd_file=")){ passwd_file = strchr(arg, '=') + sizeof(char); return 0; } if(0 == STR2NCMP(arg, "iam_role=")){ const char* role = strchr(arg, '=') + sizeof(char); S3fsCurl::SetIAMRole(role); return 0; } if(0 == STR2NCMP(arg, "public_bucket=")){ off_t pubbucket = s3fs_strtoofft(strchr(arg, '=') + sizeof(char)); if(1 == pubbucket){ S3fsCurl::SetPublicBucket(true); }else if(0 == pubbucket){ S3fsCurl::SetPublicBucket(false); }else{ S3FS_PRN_EXIT("poorly formed argument to option: public_bucket."); return -1; } return 0; } if(0 == STR2NCMP(arg, "host=")){ host = strchr(arg, '=') + sizeof(char); return 0; } if(0 == STR2NCMP(arg, "servicepath=")){ service_path = strchr(arg, '=') + sizeof(char); return 0; } if(0 == strcmp(arg, "no_check_certificate")){ S3fsCurl::SetCheckCertificate(false); return 0; } if(0 == STR2NCMP(arg, "connect_timeout=")){ long contimeout = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))); S3fsCurl::SetConnectTimeout(contimeout); return 0; } if(0 == STR2NCMP(arg, "readwrite_timeout=")){ time_t rwtimeout = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))); S3fsCurl::SetReadwriteTimeout(rwtimeout); return 0; } if(0 == STR2NCMP(arg, "max_stat_cache_size=")){ unsigned long cache_size = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))); StatCache::getStatCacheData()->SetCacheSize(cache_size); return 0; } if(0 == STR2NCMP(arg, "stat_cache_expire=")){ time_t expr_time = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))); StatCache::getStatCacheData()->SetExpireTime(expr_time); return 0; } if(0 == strcmp(arg, "enable_noobj_cache")){ StatCache::getStatCacheData()->EnableCacheNoObject(); return 0; } if(0 == strcmp(arg, "nodnscache")){ S3fsCurl::SetDnsCache(false); return 0; } if(0 == strcmp(arg, "nosscache")){ S3fsCurl::SetSslSessionCache(false); return 0; } if(0 == STR2NCMP(arg, "parallel_count=") || 0 == STR2NCMP(arg, "parallel_upload=")){ int maxpara = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))); if(0 >= maxpara){ S3FS_PRN_EXIT("argument should be over 1: parallel_count"); return -1; } S3fsCurl::SetMaxParallelCount(maxpara); return 0; } if(0 == STR2NCMP(arg, "fd_page_size=")){ S3FS_PRN_ERR("option fd_page_size is no longer supported, so skip this option."); return 0; } if(0 == STR2NCMP(arg, "multipart_size=")){ off_t size = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))); if(!S3fsCurl::SetMultipartSize(size)){ S3FS_PRN_EXIT("multipart_size option must be at least 5 MB."); return -1; } // update ensure free disk space if it is not set. FdManager::InitEnsureFreeDiskSpace(); return 0; } if(0 == STR2NCMP(arg, "ensure_diskfree=")){ size_t dfsize = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))) * 1024 * 1024; if(dfsize < static_cast(S3fsCurl::GetMultipartSize())){ S3FS_PRN_WARN("specified size to ensure disk free space is smaller than multipart size, so set multipart size to it."); dfsize = static_cast(S3fsCurl::GetMultipartSize()); } FdManager::SetEnsureFreeDiskSpace(dfsize); return 0; } if(0 == STR2NCMP(arg, "singlepart_copy_limit=")){ singlepart_copy_limit = static_cast(s3fs_strtoofft(strchr(arg, '=') + sizeof(char))) * 1024; return 0; } if(0 == STR2NCMP(arg, "ahbe_conf=")){ string ahbe_conf = strchr(arg, '=') + sizeof(char); if(!AdditionalHeader::get()->Load(ahbe_conf.c_str())){ S3FS_PRN_EXIT("failed to load ahbe_conf file(%s).", ahbe_conf.c_str()); return -1; } AdditionalHeader::get()->Dump(); return 0; } if(0 == strcmp(arg, "noxmlns")){ noxmlns = true; return 0; } if(0 == strcmp(arg, "nocopyapi")){ nocopyapi = true; return 0; } if(0 == strcmp(arg, "norenameapi")){ norenameapi = true; return 0; } if(0 == strcmp(arg, "enable_content_md5")){ S3fsCurl::SetContentMd5(true); return 0; } if(0 == STR2NCMP(arg, "url=")){ host = strchr(arg, '=') + sizeof(char); // strip the trailing '/', if any, off the end of the host // string size_t found, length; found = host.find_last_of('/'); length = host.length(); while(found == (length - 1) && length > 0){ host.erase(found); found = host.find_last_of('/'); length = host.length(); } return 0; } if(0 == strcmp(arg, "sigv2")){ S3fsCurl::SetSignatureV4(false); return 0; } if(0 == strcmp(arg, "createbucket")){ create_bucket = true; return 0; } if(0 == STR2NCMP(arg, "endpoint=")){ endpoint = strchr(arg, '=') + sizeof(char); is_specified_endpoint = true; return 0; } if(0 == strcmp(arg, "use_path_request_style")){ pathrequeststyle = true; return 0; } // // debug option for s3fs // if(0 == STR2NCMP(arg, "dbglevel=")){ const char* strlevel = strchr(arg, '=') + sizeof(char); if(0 == strcasecmp(strlevel, "silent") || 0 == strcasecmp(strlevel, "critical") || 0 == strcasecmp(strlevel, "crit")){ set_s3fs_log_level(S3FS_LOG_CRIT); }else if(0 == strcasecmp(strlevel, "error") || 0 == strcasecmp(strlevel, "err")){ set_s3fs_log_level(S3FS_LOG_ERR); }else if(0 == strcasecmp(strlevel, "wan") || 0 == strcasecmp(strlevel, "warn") || 0 == strcasecmp(strlevel, "warning")){ set_s3fs_log_level(S3FS_LOG_WARN); }else if(0 == strcasecmp(strlevel, "inf") || 0 == strcasecmp(strlevel, "info") || 0 == strcasecmp(strlevel, "information")){ set_s3fs_log_level(S3FS_LOG_INFO); }else if(0 == strcasecmp(strlevel, "dbg") || 0 == strcasecmp(strlevel, "debug")){ set_s3fs_log_level(S3FS_LOG_DBG); }else{ S3FS_PRN_EXIT("option dbglevel has unknown parameter(%s).", strlevel); return -1; } return 0; } // // debug option // // debug_level is S3FS_LOG_INFO, after second -d is passed to fuse. // if(0 == strcmp(arg, "-d") || 0 == strcmp(arg, "--debug")){ if(!IS_S3FS_LOG_INFO() && !IS_S3FS_LOG_DBG()){ set_s3fs_log_level(S3FS_LOG_INFO); return 0; } if(0 == strcmp(arg, "--debug")){ // fuse doesn't understand "--debug", but it understands -d. // but we can't pass -d back to fuse. return 0; } } // "f2" is not used no more. // (set S3FS_LOG_DBG) if(0 == strcmp(arg, "f2")){ set_s3fs_log_level(S3FS_LOG_DBG); return 0; } if(0 == strcmp(arg, "curldbg")){ S3fsCurl::SetVerbose(true); return 0; } if(0 == STR2NCMP(arg, "accessKeyId=")){ S3FS_PRN_EXIT("option accessKeyId is no longer supported."); return -1; } if(0 == STR2NCMP(arg, "secretAccessKey=")){ S3FS_PRN_EXIT("option secretAccessKey is no longer supported."); return -1; } } return 1; } int main(int argc, char* argv[]) { int ch; int fuse_res; int option_index = 0; struct fuse_operations s3fs_oper; static const struct option long_opts[] = { {"help", no_argument, NULL, 'h'}, {"version", no_argument, 0, 0}, {"debug", no_argument, NULL, 'd'}, {0, 0, 0, 0} }; // init syslog(default CRIT) openlog("s3fs", LOG_PID | LOG_ODELAY | LOG_NOWAIT, LOG_USER); set_s3fs_log_level(debug_level); // init xml2 xmlInitParser(); LIBXML_TEST_VERSION // get progam name - emulate basename size_t found = string::npos; program_name.assign(argv[0]); found = program_name.find_last_of("/"); if(found != string::npos){ program_name.replace(0, found+1, ""); } while((ch = getopt_long(argc, argv, "dho:fsu", long_opts, &option_index)) != -1){ switch(ch){ case 0: if(strcmp(long_opts[option_index].name, "version") == 0){ show_version(); exit(EXIT_SUCCESS); } break; case 'h': show_help(); exit(EXIT_SUCCESS); case 'o': break; case 'd': break; case 'f': foreground = true; break; case 's': break; case 'u': utility_mode = 1; break; default: exit(EXIT_FAILURE); } } // Load SSE environment if(!S3fsCurl::LoadEnvSse()){ S3FS_PRN_EXIT("something wrong about SSE environment."); exit(EXIT_FAILURE); } // clear this structure memset(&s3fs_oper, 0, sizeof(s3fs_oper)); // This is the fuse-style parser for the arguments // after which the bucket name and mountpoint names // should have been set struct fuse_args custom_args = FUSE_ARGS_INIT(argc, argv); if(0 != fuse_opt_parse(&custom_args, NULL, NULL, my_fuse_opt_proc)){ exit(EXIT_FAILURE); } // [NOTE] // exclusive option check here. // if(REDUCED_REDUNDANCY == S3fsCurl::GetStorageClass() && !S3fsCurl::IsSseDisable()){ S3FS_PRN_EXIT("use_sse option could not be specified with storage class reduced_redundancy."); exit(EXIT_FAILURE); } if(!S3fsCurl::FinalCheckSse()){ S3FS_PRN_EXIT("something wrong about SSE options."); exit(EXIT_FAILURE); } // The first plain argument is the bucket if(bucket.size() == 0){ S3FS_PRN_EXIT("missing BUCKET argument."); show_usage(); exit(EXIT_FAILURE); } // bucket names cannot contain upper case characters in virtual-hosted style if((!pathrequeststyle) && (lower(bucket) != bucket)){ S3FS_PRN_EXIT("BUCKET %s, name not compatible with virtual-hosted style.", bucket.c_str()); exit(EXIT_FAILURE); } // check bucket name for illegal characters found = bucket.find_first_of("/:\\;!@#$%^&*?|+="); if(found != string::npos){ S3FS_PRN_EXIT("BUCKET %s -- bucket name contains an illegal character.", bucket.c_str()); exit(EXIT_FAILURE); } // The second plain argument is the mountpoint // if the option was given, we all ready checked for a // readable, non-empty directory, this checks determines // if the mountpoint option was ever supplied if(utility_mode == 0){ if(mountpoint.size() == 0){ S3FS_PRN_EXIT("missing MOUNTPOINT argument."); show_usage(); exit(EXIT_FAILURE); } } // error checking of command line arguments for compatibility if(S3fsCurl::IsPublicBucket() && S3fsCurl::IsSetAccessKeyId()){ S3FS_PRN_EXIT("specifying both public_bucket and the access keys options is invalid."); exit(EXIT_FAILURE); } if(passwd_file.size() > 0 && S3fsCurl::IsSetAccessKeyId()){ S3FS_PRN_EXIT("specifying both passwd_file and the access keys options is invalid."); exit(EXIT_FAILURE); } if(!S3fsCurl::IsPublicBucket()){ if(EXIT_SUCCESS != get_access_keys()){ exit(EXIT_FAILURE); } if(!S3fsCurl::IsSetAccessKeyId()){ S3FS_PRN_EXIT("could not establish security credentials, check documentation."); exit(EXIT_FAILURE); } // More error checking on the access key pair can be done // like checking for appropriate lengths and characters } // check cache dir permission if(!FdManager::CheckCacheTopDir() || !CacheFileStat::CheckCacheFileStatTopDir()){ S3FS_PRN_EXIT("could not allow cache directory permission, check permission of cache directories."); exit(EXIT_FAILURE); } // There's room for more command line error checking // Check to see if the bucket name contains periods and https (SSL) is // being used. This is a known limitation: // http://docs.amazonwebservices.com/AmazonS3/latest/dev/ // The Developers Guide suggests that either use HTTP of for us to write // our own certificate verification logic. // For now, this will be unsupported unless we get a request for it to // be supported. In that case, we have a couple of options: // - implement a command line option that bypasses the verify host // but doesn't bypass verifying the certificate // - write our own host verification (this might be complex) // See issue #128strncasecmp /* if(1 == S3fsCurl::GetSslVerifyHostname()){ found = bucket.find_first_of("."); if(found != string::npos){ found = host.find("https:"); if(found != string::npos){ S3FS_PRN_EXIT("Using https and a bucket name with periods is unsupported."); exit(1); } } } */ if(utility_mode){ exit(s3fs_utility_mode()); } // check free disk space FdManager::InitEnsureFreeDiskSpace(); if(!FdManager::IsSafeDiskSpace(NULL, S3fsCurl::GetMultipartSize())){ S3FS_PRN_EXIT("There is no enough disk space for used as cache(or temporary) directory by s3fs."); exit(EXIT_FAILURE); } s3fs_oper.getattr = s3fs_getattr; s3fs_oper.readlink = s3fs_readlink; s3fs_oper.mknod = s3fs_mknod; s3fs_oper.mkdir = s3fs_mkdir; s3fs_oper.unlink = s3fs_unlink; s3fs_oper.rmdir = s3fs_rmdir; s3fs_oper.symlink = s3fs_symlink; s3fs_oper.rename = s3fs_rename; s3fs_oper.link = s3fs_link; if(!nocopyapi){ s3fs_oper.chmod = s3fs_chmod; s3fs_oper.chown = s3fs_chown; s3fs_oper.utimens = s3fs_utimens; }else{ s3fs_oper.chmod = s3fs_chmod_nocopy; s3fs_oper.chown = s3fs_chown_nocopy; s3fs_oper.utimens = s3fs_utimens_nocopy; } s3fs_oper.truncate = s3fs_truncate; s3fs_oper.open = s3fs_open; s3fs_oper.read = s3fs_read; s3fs_oper.write = s3fs_write; s3fs_oper.statfs = s3fs_statfs; s3fs_oper.flush = s3fs_flush; s3fs_oper.fsync = s3fs_fsync; s3fs_oper.release = s3fs_release; s3fs_oper.opendir = s3fs_opendir; s3fs_oper.readdir = s3fs_readdir; s3fs_oper.init = s3fs_init; s3fs_oper.destroy = s3fs_destroy; s3fs_oper.access = s3fs_access; s3fs_oper.create = s3fs_create; // extended attributes s3fs_oper.setxattr = s3fs_setxattr; s3fs_oper.getxattr = s3fs_getxattr; s3fs_oper.listxattr = s3fs_listxattr; s3fs_oper.removexattr = s3fs_removexattr; if(!s3fs_init_global_ssl()){ S3FS_PRN_EXIT("could not initialize for ssl libraries."); exit(EXIT_FAILURE); } // set signal handler for debugging if(!set_s3fs_usr2_handler()){ S3FS_PRN_EXIT("could not set signal handler for SIGUSR2."); exit(EXIT_FAILURE); } // now passing things off to fuse, fuse will finish evaluating the command line args fuse_res = fuse_main(custom_args.argc, custom_args.argv, &s3fs_oper, NULL); fuse_opt_free_args(&custom_args); s3fs_destroy_global_ssl(); // cleanup xml2 xmlCleanupParser(); S3FS_MALLOCTRIM(0); exit(fuse_res); } /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * End: * vim600: noet sw=4 ts=4 fdm=marker * vim<600: noet sw=4 ts=4 */