diff options
| author | Eric Biggers <ebiggers@google.com> | 2018-01-05 10:45:02 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-04-08 02:26:47 -0700 |
| commit | fd457d2c4e0411e56b82f67a3b22c8c589f77038 (patch) | |
| tree | eab6ceec16e3b08f5c90979a3a6d734d1b18aa11 /include/linux | |
| parent | a1cdacb7ae0db3e376c3c874df8c8793448ad1e9 (diff) | |
fscrypt: new helper function - fscrypt_get_symlink()
Filesystems also have duplicate code to support ->get_link() on
encrypted symlinks. Factor it out into a new function
fscrypt_get_symlink(). It takes in the contents of the encrypted
symlink on-disk and provides the target (decrypted or encoded) that
should be returned from ->get_link().
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/fscrypt_notsupp.h | 7 | ||||
| -rw-r--r-- | include/linux/fscrypt_supp.h | 2 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/fscrypt_notsupp.h b/include/linux/fscrypt_notsupp.h index 875c83672318..1886b255adcb 100644 --- a/include/linux/fscrypt_notsupp.h +++ b/include/linux/fscrypt_notsupp.h @@ -238,4 +238,11 @@ static inline int __fscrypt_encrypt_symlink(struct inode *inode, return -EOPNOTSUPP; } +static inline void *fscrypt_get_symlink(struct inode *inode, + const void *caddr, + unsigned int max_size) +{ + return ERR_PTR(-EOPNOTSUPP); +} + #endif /* _LINUX_FSCRYPT_NOTSUPP_H */ diff --git a/include/linux/fscrypt_supp.h b/include/linux/fscrypt_supp.h index 6ccaad58d2be..92e50820fd4f 100644 --- a/include/linux/fscrypt_supp.h +++ b/include/linux/fscrypt_supp.h @@ -210,5 +210,7 @@ extern int __fscrypt_prepare_symlink(struct inode *dir, unsigned int len, extern int __fscrypt_encrypt_symlink(struct inode *inode, const char *target, unsigned int len, struct fscrypt_str *disk_link); +extern void *fscrypt_get_symlink(struct inode *inode, const void *caddr, + unsigned int max_size); #endif /* _LINUX_FSCRYPT_SUPP_H */ |