/* * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. * * Copyright (C) 2002-2011 Aleph One Ltd. * for Toby Churchill Ltd and Brightstar Engineering * * Created by Charles Manning <charles@aleph1.co.uk> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include "yaffs_attribs.h" void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh) { obj->yst_uid = oh->yst_uid; obj->yst_gid = oh->yst_gid; obj->yst_atime = oh->yst_atime; obj->yst_mtime = oh->yst_mtime; obj->yst_ctime = oh->yst_ctime; obj->yst_rdev = oh->yst_rdev; } void yaffs_load_attribs_oh(struct yaffs_obj_hdr *oh, struct yaffs_obj *obj) { #ifdef CONFIG_YAFFS_WINCE oh->win_atime[0] = obj->win_atime[0]; oh->win_ctime[0] = obj->win_ctime[0]; oh->win_mtime[0] = obj->win_mtime[0]; oh->win_atime[1] = obj->win_atime[1]; oh->win_ctime[1] = obj->win_ctime[1]; oh->win_mtime[1] = obj->win_mtime[1]; #else oh->yst_uid = obj->yst_uid; oh->yst_gid = obj->yst_gid; oh->yst_atime = obj->yst_atime; oh->yst_mtime = obj->yst_mtime; oh->yst_ctime = obj->yst_ctime; oh->yst_rdev = obj->yst_rdev; #endif } void yaffs_attribs_init(struct yaffs_obj *obj, u32 gid, u32 uid, u32 rdev) { #ifdef CONFIG_YAFFS_WINCE yfsd_win_file_time_now(obj->win_atime); obj->win_ctime[0] = obj->win_mtime[0] = obj->win_atime[0]; obj->win_ctime[1] = obj->win_mtime[1] = obj->win_atime[1]; #else yaffs_load_current_time(obj, 1, 1); obj->yst_rdev = rdev; obj->yst_uid = uid; obj->yst_gid = gid; #endif } void yaffs_load_current_time(struct yaffs_obj *obj, int do_a, int do_c) { #ifdef CONFIG_YAFFS_WINCE yfsd_win_file_time_now(the_obj->win_atime); the_obj->win_ctime[0] = the_obj->win_mtime[0] = the_obj->win_atime[0]; the_obj->win_ctime[1] = the_obj->win_mtime[1] = the_obj->win_atime[1]; #else obj->yst_mtime = Y_CURRENT_TIME; if (do_a) obj->yst_atime = obj->yst_atime; if (do_c) obj->yst_ctime = obj->yst_atime; #endif } loff_t yaffs_get_file_size(struct yaffs_obj *obj) { YCHAR *alias = NULL; obj = yaffs_get_equivalent_obj(obj); switch (obj->variant_type) { case YAFFS_OBJECT_TYPE_FILE: return obj->variant.file_variant.file_size; case YAFFS_OBJECT_TYPE_SYMLINK: alias = obj->variant.symlink_variant.alias; if (!alias) return 0; return yaffs_strnlen(alias, YAFFS_MAX_ALIAS_LENGTH); default: return 0; } } int yaffs_set_attribs(struct yaffs_obj *obj, struct iattr *attr) { unsigned int valid = attr->ia_valid; if (valid & ATTR_MODE) obj->yst_mode = attr->ia_mode; if (valid & ATTR_UID) obj->yst_uid = attr->ia_uid; if (valid & ATTR_GID) obj->yst_gid = attr->ia_gid; if (valid & ATTR_ATIME) obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime); if (valid & ATTR_CTIME) obj->yst_ctime = Y_TIME_CONVERT(attr->ia_ctime); if (valid & ATTR_MTIME) obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime); if (valid & ATTR_SIZE) yaffs_resize_file(obj, attr->ia_size); yaffs_update_oh(obj, NULL, 1, 0, 0, NULL); return YAFFS_OK; } int yaffs_get_attribs(struct yaffs_obj *obj, struct iattr *attr) { unsigned int valid = 0; attr->ia_mode = obj->yst_mode; valid |= ATTR_MODE; attr->ia_uid = obj->yst_uid; valid |= ATTR_UID; attr->ia_gid = obj->yst_gid; valid |= ATTR_GID; Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime; valid |= ATTR_ATIME; Y_TIME_CONVERT(attr->ia_ctime) = obj->yst_ctime; valid |= ATTR_CTIME; Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime; valid |= ATTR_MTIME; attr->ia_size = yaffs_get_file_size(obj); valid |= ATTR_SIZE; attr->ia_valid = valid; return YAFFS_OK; }