[CIFS] Do not limit the length of share names (was 100 for whole UNC name)

during mount. Especially important for some non-Western languages.

Signed-off-by: Steve French <sfrench@us.ibm.com>

2 files changed, 9 insertions, 4 deletions

diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index dfd364c66313..7271bb0257f6 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,7 +1,9 @@
 Version 1.43
 ------------
 POSIX locking to servers which support CIFS POSIX Extensions
-(disabled by default controlled by proc/fs/cifs/Experimental)
+(disabled by default controlled by proc/fs/cifs/Experimental).
+Handle conversion of long share names (especially Asian languages)
+to Unicode during mount. 
 
 Version 1.42
 ------------
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index d2ec806a4f32..105544b0a275 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3282,7 +3282,8 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
                 bcc_ptr++; /* align */
         }
 
-        if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+        if(ses->server->secMode & 
+                        (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
                 smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
 
         if (ses->capabilities & CAP_STATUS32) {
@@ -3294,8 +3295,10 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
         if (ses->capabilities & CAP_UNICODE) {
                 smb_buffer->Flags2 |= SMBFLG2_UNICODE;
                 length =
-                    cifs_strtoUCS((__le16 *) bcc_ptr, tree, 100, nls_codepage);
-                bcc_ptr += 2 * length;  /* convert num of 16 bit words to bytes */
+                    cifs_strtoUCS((__le16 *) bcc_ptr, tree, 
+                        6 /* max utf8 char length in bytes */ * 
+                        (/* server len*/ + 256 /* share len */), nls_codepage);
+                bcc_ptr += 2 * length;  /* convert num 16 bit words to bytes */
                 bcc_ptr += 2;   /* skip trailing null */
         } else {                /* ASCII */
                 strcpy(bcc_ptr, tree);