Lines Matching +full:m +full:- +full:mode
1 // SPDX-License-Identifier: GPL-2.0-only
92 return ERR_PTR(-EINVAL); in bpf_fd_probe_obj()
103 umode_t mode) in bpf_get_inode() argument
107 switch (mode & S_IFMT) { in bpf_get_inode()
113 return ERR_PTR(-EINVAL); in bpf_get_inode()
118 return ERR_PTR(-ENOSPC); in bpf_get_inode()
120 inode->i_ino = get_next_ino(); in bpf_get_inode()
123 inode_init_owner(&nop_mnt_idmap, inode, dir, mode); in bpf_get_inode()
131 if (inode->i_op == &bpf_prog_iops) in bpf_inode_type()
133 else if (inode->i_op == &bpf_map_iops) in bpf_inode_type()
135 else if (inode->i_op == &bpf_link_iops) in bpf_inode_type()
138 return -EACCES; in bpf_inode_type()
153 struct dentry *dentry, umode_t mode) in bpf_mkdir() argument
157 inode = bpf_get_inode(dir->i_sb, dir, mode | S_IFDIR); in bpf_mkdir()
161 inode->i_op = &bpf_dir_iops; in bpf_mkdir()
162 inode->i_fop = &simple_dir_operations; in bpf_mkdir()
176 static struct map_iter *map_iter(struct seq_file *m) in map_iter() argument
178 return m->private; in map_iter()
181 static struct bpf_map *seq_file_to_map(struct seq_file *m) in seq_file_to_map() argument
183 return file_inode(m->file)->i_private; in seq_file_to_map()
189 kfree(iter->key); in map_iter_free()
202 iter->key = kzalloc(map->key_size, GFP_KERNEL | __GFP_NOWARN); in map_iter_alloc()
203 if (!iter->key) in map_iter_alloc()
213 static void *map_seq_next(struct seq_file *m, void *v, loff_t *pos) in map_seq_next() argument
215 struct bpf_map *map = seq_file_to_map(m); in map_seq_next()
216 void *key = map_iter(m)->key; in map_seq_next()
220 if (map_iter(m)->done) in map_seq_next()
229 if (map->ops->map_get_next_key(map, prev_key, key)) { in map_seq_next()
230 map_iter(m)->done = true; in map_seq_next()
237 static void *map_seq_start(struct seq_file *m, loff_t *pos) in map_seq_start() argument
239 if (map_iter(m)->done) in map_seq_start()
242 return *pos ? map_iter(m)->key : SEQ_START_TOKEN; in map_seq_start()
245 static void map_seq_stop(struct seq_file *m, void *v) in map_seq_stop() argument
249 static int map_seq_show(struct seq_file *m, void *v) in map_seq_show() argument
251 struct bpf_map *map = seq_file_to_map(m); in map_seq_show()
252 void *key = map_iter(m)->key; in map_seq_show()
255 seq_puts(m, "# WARNING!! The output is for debug purpose only\n"); in map_seq_show()
256 seq_puts(m, "# WARNING!! The output format will change\n"); in map_seq_show()
258 map->ops->map_seq_show_elem(map, key, m); in map_seq_show()
273 struct bpf_map *map = inode->i_private; in bpffs_map_open()
275 struct seq_file *m; in bpffs_map_open() local
280 return -ENOMEM; in bpffs_map_open()
288 m = file->private_data; in bpffs_map_open()
289 m->private = iter; in bpffs_map_open()
296 struct seq_file *m = file->private_data; in bpffs_map_release() local
298 map_iter_free(map_iter(m)); in bpffs_map_release()
306 * "cat bpffs/pathto/a-pinned-map".
321 return -EIO; in bpffs_obj_open()
328 static int bpf_mkobj_ops(struct dentry *dentry, umode_t mode, void *raw, in bpf_mkobj_ops() argument
332 struct inode *dir = dentry->d_parent->d_inode; in bpf_mkobj_ops()
333 struct inode *inode = bpf_get_inode(dir->i_sb, dir, mode); in bpf_mkobj_ops()
337 inode->i_op = iops; in bpf_mkobj_ops()
338 inode->i_fop = fops; in bpf_mkobj_ops()
339 inode->i_private = raw; in bpf_mkobj_ops()
345 static int bpf_mkprog(struct dentry *dentry, umode_t mode, void *arg) in bpf_mkprog() argument
347 return bpf_mkobj_ops(dentry, mode, arg, &bpf_prog_iops, in bpf_mkprog()
351 static int bpf_mkmap(struct dentry *dentry, umode_t mode, void *arg) in bpf_mkmap() argument
355 return bpf_mkobj_ops(dentry, mode, arg, &bpf_map_iops, in bpf_mkmap()
360 static int bpf_mklink(struct dentry *dentry, umode_t mode, void *arg) in bpf_mklink() argument
364 return bpf_mkobj_ops(dentry, mode, arg, &bpf_link_iops, in bpf_mklink()
375 if ((dir->i_mode & S_IALLUGO) && in bpf_lookup()
376 strchr(dentry->d_name.name, '.')) in bpf_lookup()
377 return ERR_PTR(-EPERM); in bpf_lookup()
389 return -ENOMEM; in bpf_symlink()
391 inode = bpf_get_inode(dir->i_sb, dir, S_IRWXUGO | S_IFLNK); in bpf_symlink()
397 inode->i_op = &simple_symlink_inode_operations; in bpf_symlink()
398 inode->i_link = link; in bpf_symlink()
418 umode_t mode = S_IFREG | S_IRUSR; in bpf_iter_link_pin_kernel() local
422 inode_lock(parent->d_inode); in bpf_iter_link_pin_kernel()
425 inode_unlock(parent->d_inode); in bpf_iter_link_pin_kernel()
428 ret = bpf_mkobj_ops(dentry, mode, link, &bpf_link_iops, in bpf_iter_link_pin_kernel()
431 inode_unlock(parent->d_inode); in bpf_iter_link_pin_kernel()
441 umode_t mode; in bpf_obj_do_pin() local
449 if (dir->i_op != &bpf_dir_iops) { in bpf_obj_do_pin()
450 ret = -EPERM; in bpf_obj_do_pin()
454 mode = S_IFREG | ((S_IRUSR | S_IWUSR) & ~current_umask()); in bpf_obj_do_pin()
455 ret = security_path_mknod(&path, dentry, mode, 0); in bpf_obj_do_pin()
461 ret = vfs_mkobj(dentry, mode, bpf_mkprog, raw); in bpf_obj_do_pin()
464 ret = vfs_mkobj(dentry, mode, bpf_mkmap, raw); in bpf_obj_do_pin()
467 ret = vfs_mkobj(dentry, mode, bpf_mklink, raw); in bpf_obj_do_pin()
470 ret = -EPERM; in bpf_obj_do_pin()
515 raw = bpf_any_get(inode->i_private, *type); in bpf_obj_do_get()
546 ret = (f_flags != O_RDWR) ? -EINVAL : bpf_link_new_fd(raw); in bpf_obj_get_user()
548 return -ENOENT; in bpf_obj_get_user()
562 if (inode->i_op == &bpf_map_iops) in __get_prog_inode()
563 return ERR_PTR(-EINVAL); in __get_prog_inode()
564 if (inode->i_op == &bpf_link_iops) in __get_prog_inode()
565 return ERR_PTR(-EINVAL); in __get_prog_inode()
566 if (inode->i_op != &bpf_prog_iops) in __get_prog_inode()
567 return ERR_PTR(-EACCES); in __get_prog_inode()
569 prog = inode->i_private; in __get_prog_inode()
576 return ERR_PTR(-EINVAL); in __get_prog_inode()
600 static int bpf_show_options(struct seq_file *m, struct dentry *root) in bpf_show_options() argument
603 umode_t mode = inode->i_mode & S_IALLUGO & ~S_ISVTX; in bpf_show_options() local
605 if (!uid_eq(inode->i_uid, GLOBAL_ROOT_UID)) in bpf_show_options()
606 seq_printf(m, ",uid=%u", in bpf_show_options()
607 from_kuid_munged(&init_user_ns, inode->i_uid)); in bpf_show_options()
608 if (!gid_eq(inode->i_gid, GLOBAL_ROOT_GID)) in bpf_show_options()
609 seq_printf(m, ",gid=%u", in bpf_show_options()
610 from_kgid_munged(&init_user_ns, inode->i_gid)); in bpf_show_options()
611 if (mode != S_IRWXUGO) in bpf_show_options()
612 seq_printf(m, ",mode=%o", mode); in bpf_show_options()
620 if (S_ISLNK(inode->i_mode)) in bpf_free_inode()
621 kfree(inode->i_link); in bpf_free_inode()
623 bpf_any_put(inode->i_private, type); in bpf_free_inode()
643 fsparam_u32oct ("mode", OPT_MODE),
650 umode_t mode; member
655 struct bpf_mount_opts *opts = fc->fs_private; in bpf_parse_param()
665 * better continue to ignore non-existing options for bpf. in bpf_parse_param()
667 if (opt == -ENOPARAM) { in bpf_parse_param()
669 if (opt != -ENOPARAM) in bpf_parse_param()
689 if (!kuid_has_mapping(fc->user_ns, uid)) in bpf_parse_param()
692 opts->uid = uid; in bpf_parse_param()
703 if (!kgid_has_mapping(fc->user_ns, gid)) in bpf_parse_param()
706 opts->gid = gid; in bpf_parse_param()
709 opts->mode = result.uint_32 & S_IALLUGO; in bpf_parse_param()
715 return invalfc(fc, "Bad value for '%s'", param->key); in bpf_parse_param()
735 if (!try_module_get(bpf_preload_ops->owner)) { in bpf_preload_mod_get()
746 module_put(bpf_preload_ops->owner); in bpf_preload_mod_put()
765 err = bpf_preload_ops->preload(objs); in populate_bpffs()
787 struct bpf_mount_opts *opts = fc->fs_private; in bpf_fill_super()
795 sb->s_op = &bpf_super_ops; in bpf_fill_super()
797 inode = sb->s_root->d_inode; in bpf_fill_super()
798 inode->i_uid = opts->uid; in bpf_fill_super()
799 inode->i_gid = opts->gid; in bpf_fill_super()
800 inode->i_op = &bpf_dir_iops; in bpf_fill_super()
801 inode->i_mode &= ~S_IALLUGO; in bpf_fill_super()
802 populate_bpffs(sb->s_root); in bpf_fill_super()
803 inode->i_mode |= S_ISVTX | opts->mode; in bpf_fill_super()
814 kfree(fc->fs_private); in bpf_free_fc()
832 return -ENOMEM; in bpf_init_fs_context()
834 opts->mode = S_IRWXUGO; in bpf_init_fs_context()
835 opts->uid = current_fsuid(); in bpf_init_fs_context()
836 opts->gid = current_fsgid(); in bpf_init_fs_context()
838 fc->fs_private = opts; in bpf_init_fs_context()
839 fc->ops = &bpf_context_ops; in bpf_init_fs_context()