diff options
| author | Steve French <smfrench@us.ibm.com> | 2013-06-25 14:03:16 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-08-13 16:04:30 -0400 |
| commit | e352e2171e12263e795c4d21bf16372ead4c121e (patch) | |
| tree | cbfe1ca3ccc566337f29956ea37ecbd0c0eada77 | |
| parent | 5fe1b5395440755af9671b6b84435eff4c71bb4f (diff) | |
Handle big endianness in NTLM (ntlmv2) authentication
[ Upstream commit fdf96a907c1fbb93c633e2b7ede3b8df26d6a4c0 ]
This is RH bug 970891
Uppercasing of username during calculation of ntlmv2 hash fails
because UniStrupr function does not handle big endian wchars.
Also fix a comment in the same code to reflect its correct usage.
[To make it easier for stable (rather than require 2nd patch) fixed
this patch of Shirish's to remove endian warning generated
by sparse -- steve f.]
Reported-by: steve <sanpatr1@in.ibm.com>
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| -rw-r--r-- | fs/cifs/cifs_unicode.h | 8 | ||||
| -rw-r--r-- | fs/cifs/cifsencrypt.c | 6 |
2 files changed, 7 insertions, 7 deletions
diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h index 4fb097468e21..fe8d6276410a 100644 --- a/fs/cifs/cifs_unicode.h +++ b/fs/cifs/cifs_unicode.h @@ -327,14 +327,14 @@ UniToupper(register wchar_t uc) /* * UniStrupr: Upper case a unicode string */ -static inline wchar_t * -UniStrupr(register wchar_t *upin) +static inline __le16 * +UniStrupr(register __le16 *upin) { - register wchar_t *up; + register __le16 *up; up = upin; while (*up) { /* For all characters */ - *up = UniToupper(*up); + *up = cpu_to_le16(UniToupper(le16_to_cpu(*up))); up++; } return upin; /* Return input pointer */ diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 6a0d741159f0..9caf0c657c32 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -394,7 +394,7 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash, int rc = 0; int len; char nt_hash[CIFS_NTHASH_SIZE]; - wchar_t *user; + __le16 *user; wchar_t *domain; wchar_t *server; @@ -419,7 +419,7 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash, return rc; } - /* convert ses->user_name to unicode and uppercase */ + /* convert ses->user_name to unicode */ len = ses->user_name ? strlen(ses->user_name) : 0; user = kmalloc(2 + (len * 2), GFP_KERNEL); if (user == NULL) { @@ -429,7 +429,7 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash, } if (len) { - len = cifs_strtoUTF16((__le16 *)user, ses->user_name, len, nls_cp); + len = cifs_strtoUTF16(user, ses->user_name, len, nls_cp); UniStrupr(user); } else { memset(user, '\0', 2); |