From: Cyril Gorcunov <gorcunov@gmail.com>
Date: Sun, 14 Oct 2007 17:58:43 +0000 (+0000)
Subject: [CIFS] Fix endian conversion problem in posix mkdir
X-Git-Tag: v2.6.24-rc1~138^2~15
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f2376adfb57d95973b64ecdf016937f436b9bf0;p=linux-2.6

[CIFS] Fix endian conversion problem in posix mkdir

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
---

diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 13071faf8a..70c90c07ed 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -9,7 +9,8 @@ ability to mount to IPC$ share (which allows CIFS named pipes to be
 opened, read and written as if they were files).  When 1st tree
 connect fails (e.g. due to signing negotiation failure) fix
 leak that causes cifsd not to stop and rmmod to fail to cleanup
-cifs_request_buffers pool.
+cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
+bigendian architectures.
 
 Version 1.50
 ------------
diff --git a/fs/cifs/cifsacl.h b/fs/cifs/cifsacl.h
index 1b115641b7..0362cd11f0 100644
--- a/fs/cifs/cifsacl.h
+++ b/fs/cifs/cifsacl.h
@@ -51,8 +51,8 @@ struct cifs_acl {
 struct cifs_ntace { /* first part of ACE which contains perms */
 	__u8 type;
 	__u8 flags;
-	__u16 size;
-	__u32 access_req;
+	__le16 size;
+	__le32 access_req;
 } __attribute__((packed));
 
 struct cifs_ace { /* last part of ACE which includes user info */
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 3627229302..632070b427 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -345,7 +345,7 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
 	user = kmalloc(2 + (len * 2), GFP_KERNEL);
 	if (user == NULL)
 		goto calc_exit_2;
-	len = cifs_strtoUCS(user, ses->userName, len, nls_cp);
+	len = cifs_strtoUCS((__le16 *)user, ses->userName, len, nls_cp);
 	UniStrupr(user);
 	hmac_md5_update((char *)user, 2*len, pctxt);
 
@@ -356,7 +356,8 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
 		domain = kmalloc(2 + (len * 2), GFP_KERNEL);
 		if (domain == NULL)
 			goto calc_exit_1;
-		len = cifs_strtoUCS(domain, ses->domainName, len, nls_cp);
+		len = cifs_strtoUCS((__le16 *)domain, ses->domainName, len,
+					nls_cp);
 		/* the following line was removed since it didn't work well
 		   with lower cased domain name that passed as an option.
 		   Maybe converting the domain name earlier makes sense */
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index eff3226b21..b17983633a 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1069,7 +1069,7 @@ PsxCreat:
 				InformationLevel) - 4;
 	offset = param_offset + params;
 	pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset);
-	pdata->Level = SMB_QUERY_FILE_UNIX_BASIC;
+	pdata->Level = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC);
 	pdata->Permissions = cpu_to_le64(mode);
 	pdata->PosixOpenFlags = cpu_to_le32(posix_flags);
 	pdata->OpenFlags =  cpu_to_le32(*pOplock);
@@ -1115,8 +1115,8 @@ PsxCreat:
 	if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction)
 		*pOplock |= CIFS_CREATE_ACTION;
 	/* check to make sure response data is there */
-	if (psx_rsp->ReturnedLevel != SMB_QUERY_FILE_UNIX_BASIC) {
-		pRetData->Type = -1; /* unknown */
+	if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) {
+		pRetData->Type = cpu_to_le32(-1); /* unknown */
 #ifdef CONFIG_CIFS_DEBUG2
 		cFYI(1, ("unknown type"));
 #endif
@@ -1124,7 +1124,7 @@ PsxCreat:
 		if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP)
 					+ sizeof(FILE_UNIX_BASIC_INFO)) {
 			cERROR(1, ("Open response data too small"));
-			pRetData->Type = -1;
+			pRetData->Type = cpu_to_le32(-1);
 			goto psx_create_err;
 		}
 		memcpy((char *) pRetData,
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index ece17ca00d..cc119b278e 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -947,7 +947,8 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
 			d_drop(direntry);
 		} else {
 			int obj_type;
-			if (pInfo->Type == -1) /* no return info - go query */ {
+			if (pInfo->Type == cpu_to_le32(-1)) {
+				/* no return info, go query for it */
 				kfree(pInfo);
 				goto mkdir_get_info;
 			}