various endian fixes to cifs

make modules C=2 M=fs/cifs CF=-D__CHECK_ENDIAN__

Found for example:

 CHECK   fs/cifs/cifssmb.c
fs/cifs/cifssmb.c:728:22: warning: incorrect type in assignment (different base types)
fs/cifs/cifssmb.c:728:22:    expected unsigned short [unsigned] [usertype] Tid
fs/cifs/cifssmb.c:728:22:    got restricted __le16 [usertype] <noident>
fs/cifs/cifssmb.c:1883:45: warning: incorrect type in assignment (different base types)
fs/cifs/cifssmb.c:1883:45:    expected long long [signed] [usertype] fl_start
fs/cifs/cifssmb.c:1883:45:    got restricted __le64 [usertype] start
fs/cifs/cifssmb.c:1884:54: warning: restricted __le64 degrades to integer
fs/cifs/cifssmb.c:1885:58: warning: restricted __le64 degrades to integer
fs/cifs/cifssmb.c:1886:43: warning: incorrect type in assignment (different base types)
fs/cifs/cifssmb.c:1886:43:    expected unsigned int [unsigned] fl_pid
fs/cifs/cifssmb.c:1886:43:    got restricted __le32 [usertype] pid

In checking new smb2 code for missing endian conversions, I noticed
some endian errors had crept in over the last few releases into the
cifs code (symlink, ntlmssp, posix lock, and also a less problematic warning
in fscache).  A followon patch will address a few smb2 endian
problems.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/cache.c b/fs/cifs/cache.c
index e654dfd..53d57a3 100644 (file)
--- a/fs/cifs/cache.c
+++ b/fs/cifs/cache.c
@@ -50,7 +50,7 @@ void cifs_fscache_unregister(void)
  */
 struct cifs_server_key {
        uint16_t        family;         /* address family */
-       uint16_t        port;           /* IP port */
+       __be16          port;           /* IP port */
        union {
                struct in_addr  ipv4_addr;
                struct in6_addr ipv6_addr;

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 2644a5d..3919ec8 100644 (file)
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -729,7 +729,7 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
                return rc;
 
        /* set up echo request */
-       smb->hdr.Tid = cpu_to_le16(0xffff);
+       smb->hdr.Tid = 0xffff;
        smb->hdr.WordCount = 1;
        put_unaligned_le16(1, &smb->EchoCount);
        put_bcc_le(1, &smb->hdr);
@@ -1884,10 +1884,10 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
                                        __constant_cpu_to_le16(CIFS_WRLCK))
                                pLockData->fl_type = F_WRLCK;
 
-                       pLockData->fl_start = parm_data->start;
-                       pLockData->fl_end = parm_data->start +
-                                               parm_data->length - 1;
-                       pLockData->fl_pid = parm_data->pid;
+                       pLockData->fl_start = le64_to_cpu(parm_data->start);
+                       pLockData->fl_end = pLockData->fl_start +
+                                       le64_to_cpu(parm_data->length) - 1;
+                       pLockData->fl_pid = le32_to_cpu(parm_data->pid);
                }
        }
 

diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index e8804d3..ce417a9 100644 (file)
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -239,7 +239,7 @@ CIFSQueryMFSymLink(const int xid, struct cifsTconInfo *tcon,
        if (rc != 0)
                return rc;
 
-       if (file_info.EndOfFile != CIFS_MF_SYMLINK_FILE_SIZE) {
+       if (file_info.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) {
                CIFSSMBClose(xid, tcon, netfid);
                /* it's not a symlink */
                return -EINVAL;
@@ -316,7 +316,7 @@ CIFSCheckMFSymlink(struct cifs_fattr *fattr,
        if (rc != 0)
                goto out;
 
-       if (file_info.EndOfFile != CIFS_MF_SYMLINK_FILE_SIZE) {
+       if (file_info.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) {
                CIFSSMBClose(xid, pTcon, netfid);
                /* it's not a symlink */
                goto out;

diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 006485f..f6728eb 100644 (file)
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -404,8 +404,8 @@ static int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len,
        /* BB spec says that if AvId field of MsvAvTimestamp is populated then
                we must set the MIC field of the AUTHENTICATE_MESSAGE */
        ses->ntlmssp->server_flags = le32_to_cpu(pblob->NegotiateFlags);
-       tioffset = cpu_to_le16(pblob->TargetInfoArray.BufferOffset);
-       tilen = cpu_to_le16(pblob->TargetInfoArray.Length);
+       tioffset = le32_to_cpu(pblob->TargetInfoArray.BufferOffset);
+       tilen = le16_to_cpu(pblob->TargetInfoArray.Length);
        if (tilen) {
                ses->auth_key.response = kmalloc(tilen, GFP_KERNEL);
                if (!ses->auth_key.response) {