projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| e2f34481 NJ |
1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | /* | |
| 3 | * Copyright (C) 2018 Samsung Electronics Co., Ltd. | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef __SHARE_CONFIG_MANAGEMENT_H__ | |
| 7 | #define __SHARE_CONFIG_MANAGEMENT_H__ | |
| 8 | ||
| 9 | #include <linux/workqueue.h> | |
| 10 | #include <linux/hashtable.h> | |
| 11 | #include <linux/path.h> | |
| 12 | ||
| e2f34481 NJ |
13 | struct ksmbd_share_config { |
| 14 | char *name; | |
| 15 | char *path; | |
| 16 | ||
| 17 | unsigned int path_sz; | |
| 18 | unsigned int flags; | |
| 19 | struct list_head veto_list; | |
| 20 | ||
| 21 | struct path vfs_path; | |
| 22 | ||
| 23 | atomic_t refcount; | |
| 24 | struct hlist_node hlist; | |
| 25 | unsigned short create_mask; | |
| 26 | unsigned short directory_mask; | |
| 27 | unsigned short force_create_mode; | |
| 28 | unsigned short force_directory_mode; | |
| 29 | unsigned short force_uid; | |
| 30 | unsigned short force_gid; | |
| 31 | }; | |
| 32 | ||
| 33 | #define KSMBD_SHARE_INVALID_UID ((__u16)-1) | |
| 34 | #define KSMBD_SHARE_INVALID_GID ((__u16)-1) | |
| 35 | ||
| 36 | static inline int share_config_create_mode(struct ksmbd_share_config *share, | |
| 97d7f3d3 | 37 | umode_t posix_mode) |
| e2f34481 NJ |
38 | { |
| 39 | if (!share->force_create_mode) { | |
| 40 | if (!posix_mode) | |
| 41 | return share->create_mask; | |
| 42 | else | |
| 43 | return posix_mode & share->create_mask; | |
| 44 | } | |
| 45 | return share->force_create_mode & share->create_mask; | |
| 46 | } | |
| 47 | ||
| 48 | static inline int share_config_directory_mode(struct ksmbd_share_config *share, | |
| 97d7f3d3 | 49 | umode_t posix_mode) |
| e2f34481 NJ |
50 | { |
| 51 | if (!share->force_directory_mode) { | |
| 52 | if (!posix_mode) | |
| 53 | return share->directory_mask; | |
| 54 | else | |
| 55 | return posix_mode & share->directory_mask; | |
| 56 | } | |
| 57 | ||
| 58 | return share->force_directory_mode & share->directory_mask; | |
| 59 | } | |
| 60 | ||
| 61 | static inline int test_share_config_flag(struct ksmbd_share_config *share, | |
| 62 | int flag) | |
| 63 | { | |
| 64 | return share->flags & flag; | |
| 65 | } | |
| 66 | ||
| 4963d74f | 67 | void ksmbd_share_config_del(struct ksmbd_share_config *share); |
| 97d7f3d3 | 68 | void __ksmbd_share_config_put(struct ksmbd_share_config *share); |
| e2f34481 NJ |
69 | |
| 70 | static inline void ksmbd_share_config_put(struct ksmbd_share_config *share) | |
| 71 | { | |
| 72 | if (!atomic_dec_and_test(&share->refcount)) | |
| 73 | return; | |
| 74 | __ksmbd_share_config_put(share); | |
| 75 | } | |
| 76 | ||
| 77 | struct ksmbd_share_config *ksmbd_share_config_get(char *name); | |
| 78 | bool ksmbd_share_veto_filename(struct ksmbd_share_config *share, | |
| 79 | const char *filename); | |
| e2f34481 | 80 | #endif /* __SHARE_CONFIG_MANAGEMENT_H__ */ |