diff options
| 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.c | |
| parent | 141fa9824c0fc11d44b2d5bb1266a33e95fa67fd (diff) | |
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 'fs/ksmbd/misc.c')
| -rw-r--r-- | fs/ksmbd/misc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ksmbd/misc.c b/fs/ksmbd/misc.c index 28459b1efaa8..9e8afaa686e3 100644 --- a/fs/ksmbd/misc.c +++ b/fs/ksmbd/misc.c @@ -227,7 +227,7 @@ void ksmbd_conv_path_to_windows(char *path) strreplace(path, '/', '\\'); } -static char *casefold_sharename(struct unicode_map *um, const char *name) +char *ksmbd_casefold_sharename(struct unicode_map *um, const char *name) { char *cf_name; int cf_len; @@ -273,7 +273,7 @@ char *ksmbd_extract_sharename(struct unicode_map *um, const char *treename) name = (pos + 1); /* caller has to free the memory */ - return casefold_sharename(um, name); + return ksmbd_casefold_sharename(um, name); } /** |