Commit | Line | Data |
---|---|---|
46f47e48 EB |
1 | /* |
2 | * fscrypt_notsupp.h | |
3 | * | |
4 | * This stubs out the fscrypt functions for filesystems configured without | |
5 | * encryption support. | |
6 | */ | |
7 | ||
8 | #ifndef _LINUX_FSCRYPT_NOTSUPP_H | |
9 | #define _LINUX_FSCRYPT_NOTSUPP_H | |
10 | ||
11 | #include <linux/fscrypt_common.h> | |
12 | ||
13 | /* crypto.c */ | |
14 | static inline struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode, | |
15 | gfp_t gfp_flags) | |
16 | { | |
17 | return ERR_PTR(-EOPNOTSUPP); | |
18 | } | |
19 | ||
20 | static inline void fscrypt_release_ctx(struct fscrypt_ctx *ctx) | |
21 | { | |
22 | return; | |
23 | } | |
24 | ||
25 | static inline struct page *fscrypt_encrypt_page(const struct inode *inode, | |
26 | struct page *page, | |
27 | unsigned int len, | |
28 | unsigned int offs, | |
29 | u64 lblk_num, gfp_t gfp_flags) | |
30 | { | |
31 | return ERR_PTR(-EOPNOTSUPP); | |
32 | } | |
33 | ||
34 | static inline int fscrypt_decrypt_page(const struct inode *inode, | |
35 | struct page *page, | |
36 | unsigned int len, unsigned int offs, | |
37 | u64 lblk_num) | |
38 | { | |
39 | return -EOPNOTSUPP; | |
40 | } | |
41 | ||
42 | ||
43 | static inline void fscrypt_restore_control_page(struct page *page) | |
44 | { | |
45 | return; | |
46 | } | |
47 | ||
48 | static inline void fscrypt_set_d_op(struct dentry *dentry) | |
49 | { | |
50 | return; | |
51 | } | |
52 | ||
53 | static inline void fscrypt_set_encrypted_dentry(struct dentry *dentry) | |
54 | { | |
55 | return; | |
56 | } | |
57 | ||
58 | /* policy.c */ | |
59 | static inline int fscrypt_ioctl_set_policy(struct file *filp, | |
60 | const void __user *arg) | |
61 | { | |
62 | return -EOPNOTSUPP; | |
63 | } | |
64 | ||
65 | static inline int fscrypt_ioctl_get_policy(struct file *filp, void __user *arg) | |
66 | { | |
67 | return -EOPNOTSUPP; | |
68 | } | |
69 | ||
70 | static inline int fscrypt_has_permitted_context(struct inode *parent, | |
71 | struct inode *child) | |
72 | { | |
73 | return 0; | |
74 | } | |
75 | ||
76 | static inline int fscrypt_inherit_context(struct inode *parent, | |
77 | struct inode *child, | |
78 | void *fs_data, bool preload) | |
79 | { | |
80 | return -EOPNOTSUPP; | |
81 | } | |
82 | ||
83 | /* keyinfo.c */ | |
84 | static inline int fscrypt_get_encryption_info(struct inode *inode) | |
85 | { | |
86 | return -EOPNOTSUPP; | |
87 | } | |
88 | ||
89 | static inline void fscrypt_put_encryption_info(struct inode *inode, | |
90 | struct fscrypt_info *ci) | |
91 | { | |
92 | return; | |
93 | } | |
94 | ||
95 | /* fname.c */ | |
96 | static inline int fscrypt_setup_filename(struct inode *dir, | |
97 | const struct qstr *iname, | |
98 | int lookup, struct fscrypt_name *fname) | |
99 | { | |
100 | if (dir->i_sb->s_cop->is_encrypted(dir)) | |
101 | return -EOPNOTSUPP; | |
102 | ||
103 | memset(fname, 0, sizeof(struct fscrypt_name)); | |
104 | fname->usr_fname = iname; | |
105 | fname->disk_name.name = (unsigned char *)iname->name; | |
106 | fname->disk_name.len = iname->len; | |
107 | return 0; | |
108 | } | |
109 | ||
110 | static inline void fscrypt_free_filename(struct fscrypt_name *fname) | |
111 | { | |
112 | return; | |
113 | } | |
114 | ||
115 | static inline u32 fscrypt_fname_encrypted_size(const struct inode *inode, | |
116 | u32 ilen) | |
117 | { | |
118 | /* never happens */ | |
119 | WARN_ON(1); | |
120 | return 0; | |
121 | } | |
122 | ||
123 | static inline int fscrypt_fname_alloc_buffer(const struct inode *inode, | |
124 | u32 ilen, | |
125 | struct fscrypt_str *crypto_str) | |
126 | { | |
127 | return -EOPNOTSUPP; | |
128 | } | |
129 | ||
130 | static inline void fscrypt_fname_free_buffer(struct fscrypt_str *crypto_str) | |
131 | { | |
132 | return; | |
133 | } | |
134 | ||
135 | static inline int fscrypt_fname_disk_to_usr(struct inode *inode, | |
136 | u32 hash, u32 minor_hash, | |
137 | const struct fscrypt_str *iname, | |
138 | struct fscrypt_str *oname) | |
139 | { | |
140 | return -EOPNOTSUPP; | |
141 | } | |
142 | ||
143 | static inline int fscrypt_fname_usr_to_disk(struct inode *inode, | |
144 | const struct qstr *iname, | |
145 | struct fscrypt_str *oname) | |
146 | { | |
147 | return -EOPNOTSUPP; | |
148 | } | |
149 | ||
17159420 EB |
150 | static inline bool fscrypt_match_name(const struct fscrypt_name *fname, |
151 | const u8 *de_name, u32 de_name_len) | |
152 | { | |
153 | /* Encryption support disabled; use standard comparison */ | |
154 | if (de_name_len != fname->disk_name.len) | |
155 | return false; | |
156 | return !memcmp(de_name, fname->disk_name.name, fname->disk_name.len); | |
157 | } | |
158 | ||
46f47e48 EB |
159 | /* bio.c */ |
160 | static inline void fscrypt_decrypt_bio_pages(struct fscrypt_ctx *ctx, | |
161 | struct bio *bio) | |
162 | { | |
163 | return; | |
164 | } | |
165 | ||
166 | static inline void fscrypt_pullback_bio_page(struct page **page, bool restore) | |
167 | { | |
168 | return; | |
169 | } | |
170 | ||
171 | static inline int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk, | |
172 | sector_t pblk, unsigned int len) | |
173 | { | |
174 | return -EOPNOTSUPP; | |
175 | } | |
176 | ||
177 | #endif /* _LINUX_FSCRYPT_NOTSUPP_H */ |