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| author | Eric Biggers | 2018-01-05 19:44:59 +0100 |
|---|---|---|
| committer | Theodore Ts'o | 2018-01-12 04:06:19 +0100 |
| commit | dcf0db9e5df369461c9d55282abbf66d263ef2db (patch) | |
| tree | 978917917ce988575ed66ce0bf45bd4008d8d13b /fs/crypto/fname.c | |
| parent | fscrypt: move fscrypt_valid_enc_modes() to fscrypt_private.h (diff) | |
| download | kernel-qcow2-linux-dcf0db9e5df369461c9d55282abbf66d263ef2db.tar.gz kernel-qcow2-linux-dcf0db9e5df369461c9d55282abbf66d263ef2db.tar.xz kernel-qcow2-linux-dcf0db9e5df369461c9d55282abbf66d263ef2db.zip | |
fscrypt: move fscrypt_is_dot_dotdot() to fs/crypto/fname.c
Only fs/crypto/fname.c cares about treating the "." and ".." filenames
specially with regards to encryption, so move fscrypt_is_dot_dotdot()
from fscrypt.h to there.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/crypto/fname.c')
| -rw-r--r-- | fs/crypto/fname.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c index 305541bcd108..b8c5061553b1 100644 --- a/fs/crypto/fname.c +++ b/fs/crypto/fname.c @@ -15,6 +15,17 @@ #include <linux/ratelimit.h> #include "fscrypt_private.h" +static inline bool fscrypt_is_dot_dotdot(const struct qstr *str) +{ + if (str->len == 1 && str->name[0] == '.') + return true; + + if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') + return true; + + return false; +} + /** * fname_encrypt() - encrypt a filename * |