@@ -1,9 +1,8 @@ #define FUSE_USE_VERSION 26 #include -#include #include #include #include #include #include @@ -28,14 +27,12 @@ #endif static pthread_key_t interpKey; struct appfs_thread_data { - sqlite3 *db; const char *cachedir; time_t boottime; - const char *platform; struct { int writable; } options; }; @@ -75,16 +72,10 @@ char source[256]; } symlink; } typeinfo; }; -struct appfs_sqlite3_query_cb_handle { - struct appfs_children *head; - int argc; - const char *fmt; -}; - static Tcl_Interp *appfs_create_TclInterp(const char *cachedir) { Tcl_Interp *interp; int tcl_ret; APPFS_DEBUG("Creating new Tcl interpreter for TID = 0x%llx", (unsigned long long) pthread_self()); @@ -109,10 +100,20 @@ tcl_ret = Tcl_Eval(interp, "package ifneeded sha1 1.0 [list load {} sha1]"); if (tcl_ret != TCL_OK) { fprintf(stderr, "Unable to initialize Tcl SHA1. Aborting.\n"); fprintf(stderr, "Tcl Error is: %s\n", Tcl_GetStringResult(interp)); + Tcl_DeleteInterp(interp); + + return(NULL); + } + + tcl_ret = Tcl_Eval(interp, "package ifneeded appfsd 1.0 [list load {} appfsd]"); + if (tcl_ret != TCL_OK) { + fprintf(stderr, "Unable to initialize Tcl AppFS Package. Aborting.\n"); + fprintf(stderr, "Tcl Error is: %s\n", Tcl_GetStringResult(interp)); + Tcl_DeleteInterp(interp); return(NULL); } @@ -271,20 +272,10 @@ } return; } -#define appfs_free_list_type(id, type) static void appfs_free_list_ ## id(type *head) { \ - type *obj, *next; \ - for (obj = head; obj; obj = next) { \ - next = obj->_next; \ - ckfree((void *) obj); \ - } \ -} - -appfs_free_list_type(children, struct appfs_children) - static uid_t appfs_get_fsuid(void) { struct fuse_context *ctx; ctx = fuse_get_context(); if (ctx == NULL) { @@ -292,11 +283,11 @@ } return(ctx->uid); } -static const char *appfs_get_homedir(uid_t fsuid) { +static char *appfs_get_homedir(uid_t fsuid) { struct passwd entry, *result; struct stat stbuf; char buf[1024], *retval; int gpu_ret, stat_ret; @@ -334,441 +325,43 @@ ); return(NULL); } - retval = sqlite3_mprintf("%s", result->pw_dir); - - return(retval); -} - -static int appfs_getpackage_name_cb(void *_package_name, int columns, char **values, char **names) { - char **package_name; - - if (columns != 1) { - return(1); - } - - package_name = _package_name; - - *package_name = sqlite3_mprintf("%s", values[0]); - - return(0); -} - -static char *appfs_getpackage_name(const char *hostname, const char *package_hash) { - char *sql; - int sqlite_ret; - char *package_name = NULL; - - sql = sqlite3_mprintf("SELECT package FROM packages WHERE hostname = %Q AND sha1 = %Q LIMIT 1;", hostname, package_hash); - if (sql == NULL) { - APPFS_DEBUG("Call to sqlite3_mprintf failed."); - - return(sqlite3_mprintf("%s", "unknown-package-name")); - } - sqlite_ret = sqlite3_exec(globalThread.db, sql, appfs_getpackage_name_cb, &package_name, NULL); - sqlite3_free(sql); - - if (sqlite_ret != SQLITE_OK) { - APPFS_DEBUG("Call to sqlite3_exec failed."); - - return(sqlite3_mprintf("%s", "unknown-package-name")); - } - - return(package_name); -} - -static struct appfs_children *appfs_getchildren_fs(struct appfs_children *in_children, const char *fspath) { - APPFS_DEBUG("Searching %s", fspath); - - return(in_children); -} - -static int appfs_getchildren_cb(void *_head, int columns, char **values, char **names) { - struct appfs_children **head_p, *obj; - - head_p = _head; - - obj = (void *) ckalloc(sizeof(*obj)); - - snprintf(obj->name, sizeof(obj->name), "%s", values[0]); - - if (*head_p == NULL) { - obj->counter = 0; - } else { - obj->counter = (*head_p)->counter + 1; - } - - obj->_next = *head_p; - *head_p = obj; - - return(0); - -} - -static struct appfs_children *appfs_getchildren(const char *hostname, const char *package_hash, const char *path, int *children_count_p) { - struct appfs_children *head = NULL; - char *sql, *filebuf, *homedir = NULL; - int sqlite_ret; - uid_t fsuid; - - if (children_count_p == NULL) { - return(NULL); - } - - appfs_update_index(hostname); - appfs_update_manifest(hostname, package_hash); - - sql = sqlite3_mprintf("SELECT file_name FROM files WHERE package_sha1 = %Q AND file_directory = %Q;", package_hash, path); - if (sql == NULL) { - APPFS_DEBUG("Call to sqlite3_mprintf failed."); - - return(NULL); - } - - APPFS_DEBUG("SQL: %s", sql); - sqlite_ret = sqlite3_exec(globalThread.db, sql, appfs_getchildren_cb, &head, NULL); - sqlite3_free(sql); - - if (sqlite_ret != SQLITE_OK) { - APPFS_DEBUG("Call to sqlite3_exec failed."); - - appfs_free_list_children(head); - - return(NULL); - } - - if (globalThread.options.writable) { - /* Determine user of process accessing this file */ - fsuid = appfs_get_fsuid(); - - /* Check filesystem paths for updated files */ - /** Check the global directory (/etc) **/ - filebuf = sqlite3_mprintf("/etc/appfs/%z@%s/%s", appfs_getpackage_name(hostname, package_hash), hostname, path); - if (filebuf == NULL) { - APPFS_DEBUG("Call to sqlite3_mprintf failed."); - - return(NULL); - } - - head = appfs_getchildren_fs(head, filebuf); - - sqlite3_free(filebuf); - - /** Check the user's directory, if we are not root **/ - if (fsuid != 0) { - homedir = (char *) appfs_get_homedir(fsuid); - } - - if (homedir != NULL) { - filebuf = sqlite3_mprintf("%z/.appfs/%z@%s/%s", homedir, appfs_getpackage_name(hostname, package_hash), hostname, path); - - if (filebuf == NULL) { - APPFS_DEBUG("Call to sqlite3_mprintf failed."); - - return(NULL); - } - - head = appfs_getchildren_fs(head, filebuf); - - sqlite3_free(filebuf); - } - } - - if (head != NULL) { - *children_count_p = head->counter + 1; - } else { - *children_count_p = 0; - } - - return(head); -} - -static int appfs_sqlite3_query_cb(void *_cb_handle, int columns, char **values, char **names) { - struct appfs_sqlite3_query_cb_handle *cb_handle; - struct appfs_children *obj; - - cb_handle = _cb_handle; - - obj = (void *) ckalloc(sizeof(*obj)); - - switch (cb_handle->argc) { - case 1: - snprintf(obj->name, sizeof(obj->name), cb_handle->fmt, values[0]); - break; - case 2: - snprintf(obj->name, sizeof(obj->name), cb_handle->fmt, values[0], values[1]); - break; - case 3: - snprintf(obj->name, sizeof(obj->name), cb_handle->fmt, values[0], values[1], values[2]); - break; - case 4: - snprintf(obj->name, sizeof(obj->name), cb_handle->fmt, values[0], values[1], values[2], values[3]); - break; - } - - if (cb_handle->head == NULL) { - obj->counter = 0; - } else { - obj->counter = cb_handle->head->counter + 1; - } - - obj->_next = cb_handle->head; - cb_handle->head = obj; - - return(0); -} - -static struct appfs_children *appfs_sqlite3_query(char *sql, int argc, const char *fmt, int *results_count_p) { - struct appfs_sqlite3_query_cb_handle cb_handle; - int sqlite_ret; - - if (results_count_p == NULL) { - return(NULL); - } - - if (sql == NULL) { - APPFS_DEBUG("Call to sqlite3_mprintf probably failed."); - - return(NULL); - } - - if (fmt == NULL) { - fmt = "%s"; - } - - cb_handle.head = NULL; - cb_handle.argc = argc; - cb_handle.fmt = fmt; - - APPFS_DEBUG("SQL: %s", sql); - sqlite_ret = sqlite3_exec(globalThread.db, sql, appfs_sqlite3_query_cb, &cb_handle, NULL); - sqlite3_free(sql); - - if (sqlite_ret != SQLITE_OK) { - APPFS_DEBUG("Call to sqlite3_exec failed."); - - return(NULL); - } - - if (cb_handle.head != NULL) { - *results_count_p = cb_handle.head->counter + 1; - } - - return(cb_handle.head); -} - -static int appfs_lookup_package_hash_cb(void *_retval, int columns, char **values, char **names) { - char **retval = _retval; - - *retval = strdup(values[0]); - - return(0); -} - -static char *appfs_lookup_package_hash(const char *hostname, const char *package, const char *os, const char *cpuArch, const char *version) { - char *sql; - char *retval = NULL; - int sqlite_ret; - - appfs_update_index(hostname); - - sql = sqlite3_mprintf("SELECT sha1 FROM packages WHERE hostname = %Q AND package = %Q AND os = %Q AND cpuArch = %Q AND version = %Q;", - hostname, - package, - os, - cpuArch, - version - ); - if (sql == NULL) { - APPFS_DEBUG("Call to sqlite3_mprintf failed."); - - return(NULL); - } - - APPFS_DEBUG("SQL: %s", sql); - sqlite_ret = sqlite3_exec(globalThread.db, sql, appfs_lookup_package_hash_cb, &retval, NULL); - sqlite3_free(sql); - - if (sqlite_ret != SQLITE_OK) { - APPFS_DEBUG("Call to sqlite3_exec failed."); - - return(NULL); - } - - return(retval); -} - -static int appfs_getfileinfo_cb(void *_pathinfo, int columns, char **values, char **names) { - struct appfs_pathinfo *pathinfo = _pathinfo; - const char *type, *time, *source, *size, *perms, *sha1, *rowid; - - type = values[0]; - time = values[1]; - source = values[2]; - size = values[3]; - perms = values[4]; - sha1 = values[5]; - rowid = values[6]; - - pathinfo->time = strtoull(time, NULL, 10); - - /* Package file inodes start at 2^32, fake inodes are before then */ - pathinfo->inode = strtoull(rowid, NULL, 10) + 4294967296ULL; - - if (strcmp(type, "file") == 0) { - pathinfo->type = APPFS_PATHTYPE_FILE; - - if (!size) { - size = "0"; - } - - if (!perms) { - perms = ""; - } - - if (!sha1) { - sha1 = ""; - } - - pathinfo->typeinfo.file.size = strtoull(size, NULL, 10); - snprintf(pathinfo->typeinfo.file.sha1, sizeof(pathinfo->typeinfo.file.sha1), "%s", sha1); - - if (strcmp(perms, "x") == 0) { - pathinfo->typeinfo.file.executable = 1; - } else { - pathinfo->typeinfo.file.executable = 0; - } - - return(0); - } - - if (strcmp(type, "directory") == 0) { - pathinfo->type = APPFS_PATHTYPE_DIRECTORY; - pathinfo->typeinfo.dir.childcount = 0; - - return(0); - } - - if (strcmp(type, "symlink") == 0) { - pathinfo->type = APPFS_PATHTYPE_SYMLINK; - pathinfo->typeinfo.dir.childcount = 0; - - if (!source) { - source = ".BADLINK"; - } - - pathinfo->typeinfo.symlink.size = strlen(source); - snprintf(pathinfo->typeinfo.symlink.source, sizeof(pathinfo->typeinfo.symlink.source), "%s", source); - - return(0); - } - - return(0); - - /* Until this is used, prevent the compiler from complaining */ - source = source; -} - -static int appfs_getfileinfo(const char *hostname, const char *package_hash, const char *_path, struct appfs_pathinfo *pathinfo) { - char *directory, *file, *path; - char *sql; - int sqlite_ret; - - if (pathinfo == NULL) { - return(-EIO); - } - - appfs_update_index(hostname); - appfs_update_manifest(hostname, package_hash); - - path = strdup(_path); - directory = path; - file = strrchr(path, '/'); - if (file == NULL) { - file = path; - directory = ""; - } else { - *file = '\0'; - file++; - } - - sql = sqlite3_mprintf("SELECT type, time, source, size, perms, file_sha1, rowid FROM files WHERE package_sha1 = %Q AND file_directory = %Q AND file_name = %Q;", package_hash, directory, file); - if (sql == NULL) { - APPFS_DEBUG("Call to sqlite3_mprintf failed."); - - free(path); - - return(-EIO); - } - - free(path); - - pathinfo->type = APPFS_PATHTYPE_INVALID; - - APPFS_DEBUG("SQL: %s", sql); - sqlite_ret = sqlite3_exec(globalThread.db, sql, appfs_getfileinfo_cb, pathinfo, NULL); - sqlite3_free(sql); - - if (sqlite_ret != SQLITE_OK) { - APPFS_DEBUG("Call to sqlite3_exec failed."); - - return(-EIO); - } - - if (pathinfo->type == APPFS_PATHTYPE_INVALID) { - return(-ENOENT); - } - - return(0); -} - -static int appfs_get_path_info_sql(char *sql, int argc, const char *fmt, struct appfs_pathinfo *pathinfo, struct appfs_children **children) { - struct appfs_children *node, *dir_children, *dir_child; - int dir_children_count = 0; - - dir_children = appfs_sqlite3_query(sql, argc, fmt, &dir_children_count); - - if (dir_children == NULL || dir_children_count == 0) { - return(-ENOENT); - } - - /* Request for a single hostname */ - pathinfo->type = APPFS_PATHTYPE_DIRECTORY; - pathinfo->typeinfo.dir.childcount = dir_children_count; - pathinfo->time = globalThread.boottime; - - if (children) { - for (dir_child = dir_children; dir_child; dir_child = dir_child->_next) { - node = (void *) ckalloc(sizeof(*node)); - node->_next = *children; - strcpy(node->name, dir_child->name); - *children = node; - } - } - - appfs_free_list_children(dir_children); - - return(0); -} - -static int appfs_add_path_child(const char *name, struct appfs_pathinfo *pathinfo, struct appfs_children **children) { - struct appfs_children *new_child; - - pathinfo->typeinfo.dir.childcount++; - - if (children) { - new_child = (void *) ckalloc(sizeof(*new_child)); - new_child->_next = *children; - - snprintf(new_child->name, sizeof(new_child->name), "%s", name); - - *children = new_child; - } - - return(0); + retval = strdup(result->pw_dir); + + return(retval); +} + +static int tcl_appfs_get_homedir(ClientData cd, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { + char *homedir; + + if (objc != 1) { + Tcl_WrongNumArgs(interp, 1, objv, NULL); + return(TCL_ERROR); + } + + homedir = appfs_get_homedir(appfs_get_fsuid()); + + if (homedir == NULL) { + return(TCL_ERROR); + } + + Tcl_SetObjResult(interp, Tcl_NewStringObj(homedir, -1)); + + free(homedir); + + return(TCL_OK); +} + +static struct appfs_children *appfs_getchildren(const char *hostname, const char *package_hash, const char *path, int *children_count_p) { +} + +static char *appfs_lookup_package_hash(const char *hostname, const char *package, const char *os, const char *cpuArch, const char *version) { +} + +static int appfs_getfileinfo(const char *hostname, const char *package_hash, const char *_path, struct appfs_pathinfo *pathinfo) { } /* Generate an inode for a given path */ static long long appfs_get_path_inode(const char *path) { long long retval; @@ -788,226 +381,10 @@ return(retval); } /* Get information about a path, and optionally list children */ static int appfs_get_path_info(const char *_path, struct appfs_pathinfo *pathinfo, struct appfs_children **children) { - struct appfs_children *dir_children; - char *hostname, *packagename, *os_cpuArch, *os, *cpuArch, *version; - char *path, *path_s; - char *package_hash; - char *sql; - int files_count; - int fileinfo_ret, retval; - - /* Initialize return */ - if (children) { - *children = NULL; - } - - /* Verify that this is a valid request */ - if (_path == NULL) { - return(-ENOENT); - } - - if (_path[0] != '/') { - return(-ENOENT); - } - - /* Note that this is not a "real" directory from a package */ - pathinfo->packaged = 0; - - if (_path[1] == '\0') { - /* Request for the root directory */ - pathinfo->hostname[0] = '\0'; - pathinfo->inode = 1; - - sql = sqlite3_mprintf("SELECT DISTINCT hostname FROM packages;"); - - retval = appfs_get_path_info_sql(sql, 1, NULL, pathinfo, children); - - /* The root directory always exists, even if it has no subordinates */ - if (retval != 0) { - pathinfo->type = APPFS_PATHTYPE_DIRECTORY; - pathinfo->typeinfo.dir.childcount = 0; - pathinfo->time = globalThread.boottime; - - retval = 0; - } - - return(retval); - } - - path = strdup(_path); - path_s = path; - - pathinfo->inode = appfs_get_path_inode(path); - - hostname = path + 1; - packagename = strchr(hostname, '/'); - - if (packagename != NULL) { - *packagename = '\0'; - packagename++; - } - - snprintf(pathinfo->hostname, sizeof(pathinfo->hostname), "%s", hostname); - - if (packagename == NULL) { - appfs_update_index(hostname); - - sql = sqlite3_mprintf("SELECT DISTINCT package FROM packages WHERE hostname = %Q;", hostname); - - free(path_s); - - return(appfs_get_path_info_sql(sql, 1, NULL, pathinfo, children)); - } - - os_cpuArch = strchr(packagename, '/'); - - if (os_cpuArch != NULL) { - *os_cpuArch = '\0'; - os_cpuArch++; - } - - if (os_cpuArch == NULL) { - appfs_update_index(hostname); - - sql = sqlite3_mprintf("SELECT DISTINCT os, cpuArch FROM packages WHERE hostname = %Q AND package = %Q;", hostname, packagename); - - free(path_s); - - retval = appfs_get_path_info_sql(sql, 2, "%s-%s", pathinfo, children); - - if (retval != 0) { - return(retval); - } - - appfs_add_path_child("platform", pathinfo, children); - - return(retval); - } - - version = strchr(os_cpuArch, '/'); - - if (version != NULL) { - *version = '\0'; - version++; - } - - os = os_cpuArch; - cpuArch = strchr(os_cpuArch, '-'); - if (cpuArch) { - *cpuArch = '\0'; - cpuArch++; - } else { - cpuArch = ""; - } - - if (version == NULL) { - if (strcmp(os, "platform") == 0 && strcmp(cpuArch, "") == 0) { - pathinfo->type = APPFS_PATHTYPE_SYMLINK; - pathinfo->time = globalThread.boottime; - pathinfo->typeinfo.dir.childcount = 0; - pathinfo->typeinfo.symlink.size = strlen(globalThread.platform); - - snprintf(pathinfo->typeinfo.symlink.source, sizeof(pathinfo->typeinfo.symlink.source), "%s", globalThread.platform); - - free(path_s); - - return(0); - } - - /* Request for version list for a package on an OS/CPU */ - appfs_update_index(hostname); - - sql = sqlite3_mprintf("SELECT DISTINCT version FROM packages WHERE hostname = %Q AND package = %Q AND os = %Q and cpuArch = %Q;", hostname, packagename, os, cpuArch); - - free(path_s); - - return(appfs_get_path_info_sql(sql, 1, NULL, pathinfo, children)); - } - - path = strchr(version, '/'); - if (path == NULL) { - path = ""; - } else { - *path = '\0'; - path++; - } - - /* Request for a file in a specific package */ - pathinfo->packaged = 1; - APPFS_DEBUG("Requesting information for hostname = %s, package = %s, os = %s, cpuArch = %s, version = %s, path = %s", - hostname, packagename, os, cpuArch, version, path - ); - - package_hash = appfs_lookup_package_hash(hostname, packagename, os, cpuArch, version); - if (package_hash == NULL) { - free(path_s); - - return(-ENOENT); - } - - APPFS_DEBUG(" ... which hash a hash of %s", package_hash); - - appfs_update_manifest(hostname, package_hash); - - if (strcmp(path, "") == 0) { - pathinfo->type = APPFS_PATHTYPE_DIRECTORY; - pathinfo->time = globalThread.boottime; - } else { - fileinfo_ret = appfs_getfileinfo(hostname, package_hash, path, pathinfo); - if (fileinfo_ret != 0) { - free(path_s); - - return(fileinfo_ret); - } - } - - if (pathinfo->type == APPFS_PATHTYPE_DIRECTORY) { - dir_children = appfs_getchildren(hostname, package_hash, path, &files_count); - - if (dir_children != NULL) { - pathinfo->typeinfo.dir.childcount = files_count; - } - - if (children) { - *children = dir_children; - } else { - appfs_free_list_children(dir_children); - } - } - - free(path_s); - - return(0); -} - -static int appfs_fuse_readlink(const char *path, char *buf, size_t size) { - struct appfs_pathinfo pathinfo; - int res = 0; - - APPFS_DEBUG("Enter (path = %s, ...)", path); - - pathinfo.type = APPFS_PATHTYPE_INVALID; - - res = appfs_get_path_info(path, &pathinfo, NULL); - if (res != 0) { - return(res); - } - - if (pathinfo.type != APPFS_PATHTYPE_SYMLINK) { - return(-EINVAL); - } - - if ((strlen(pathinfo.typeinfo.symlink.source) + 1) > size) { - return(-ENAMETOOLONG); - } - - memcpy(buf, pathinfo.typeinfo.symlink.source, strlen(pathinfo.typeinfo.symlink.source) + 1); - - return(0); } static int appfs_fuse_getattr(const char *path, struct stat *stbuf) { struct appfs_pathinfo pathinfo; int res = 0; @@ -1158,22 +535,36 @@ .readlink = appfs_fuse_readlink, .open = appfs_fuse_open, .release = appfs_fuse_close, .read = appfs_fuse_read }; + +int Appfsd_Init(Tcl_Interp *interp) { +#ifdef USE_TCL_STUBS + if (Tcl_InitStubs(interp, TCL_VERSION, 0) == 0L) { + return(TCL_ERROR); + } +#endif + + Tcl_CreateObjCommand(interp, "appfsd::get_homedir", tcl_appfs_get_homedir, NULL, NULL); + + Tcl_PkgProvide(interp, "appfsd", "1.0"); + + return(TCL_OK); +} int main(int argc, char **argv) { const char *cachedir = APPFS_CACHEDIR; char dbfilename[1024]; - int pthread_ret, snprintf_ret, sqlite_ret; + int pthread_ret, snprintf_ret; globalThread.cachedir = cachedir; globalThread.boottime = time(NULL); - globalThread.platform = "linux-x86_64"; globalThread.options.writable = 1; Tcl_StaticPackage(NULL, "sha1", Sha1_Init, NULL); + Tcl_StaticPackage(NULL, "appfsd", Appfsd_Init, NULL); pthread_ret = pthread_key_create(&interpKey, NULL); if (pthread_ret != 0) { fprintf(stderr, "Unable to create TSD key for Tcl. Aborting.\n"); @@ -1182,18 +573,11 @@ snprintf_ret = snprintf(dbfilename, sizeof(dbfilename), "%s/%s", cachedir, "cache.db"); if (snprintf_ret >= sizeof(dbfilename)) { fprintf(stderr, "Unable to set database filename. Aborting.\n"); - return(1); - } - - sqlite_ret = sqlite3_open(dbfilename, &globalThread.db); - if (sqlite_ret != SQLITE_OK) { - fprintf(stderr, "Unable to open database: %s\n", dbfilename); - return(1); } return(fuse_main(argc, argv, &appfs_oper, NULL)); }