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| author |   Atte Heikkilä <atteh.mailbox@gmail.com> | 2022-10-03 02:09:34 +0300 |
|---|---|---|
| committer |   Steve French <stfrench@microsoft.com> | 2022-10-05 01:15:44 -0500 |
| commit | f5ba1cdaf5eb380e148183bda06d4844b457d095 (patch) | |
| tree | 7dcec37b1ed5813e6bfc437b279cc9caf6b1a58c /fs/ksmbd/misc.h | |
| parent | ksmbd: call ib_drain_qp when disconnected (diff) | |
| download | linux-dev-f5ba1cdaf5eb380e148183bda06d4844b457d095.tar.xz linux-dev-f5ba1cdaf5eb380e148183bda06d4844b457d095.zip | |
ksmbd: validate share name from share config response
Share config response may contain the share name without casefolding as
it is known to the user space daemon. When it is present, casefold and
compare it to the share name the share config request was made with. If
they differ, we have a share config which is incompatible with the way
share config caching is done. This is the case when CONFIG_UNICODE is
not set, the share name contains non-ASCII characters, and those non-
ASCII characters do not match those in the share name known to user
space. In other words, when CONFIG_UNICODE is not set, UTF-8 share
names now work but are only case-insensitive in the ASCII range.
Signed-off-by: Atte Heikkilä <atteh.mailbox@gmail.com>
Acked-by: Tom Talpey <tom@talpey.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/ksmbd/misc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ksmbd/misc.h b/fs/ksmbd/misc.h index cc72f4e6baf2..1facfcd21200 100644 --- a/fs/ksmbd/misc.h +++ b/fs/ksmbd/misc.h @@ -20,6 +20,7 @@ int get_nlink(struct kstat *st); void ksmbd_conv_path_to_unix(char *path); void ksmbd_strip_last_slash(char *path); void ksmbd_conv_path_to_windows(char *path); +char *ksmbd_casefold_sharename(struct unicode_map *um, const char *name); char *ksmbd_extract_sharename(struct unicode_map *um, const char *treename); char *convert_to_unix_name(struct ksmbd_share_config *share, const char *name); |