From df310be1bf99bfd2cfe6533ff39c34c2c5ae535d Mon Sep 17 00:00:00 2001
From: Jeffrey Altman <jaltman@secure-endpoints.com>
Date: Fri, 25 Aug 2006 18:08:23 +0000
Subject: [PATCH] DEVEL15-windows-smb-alignment-20060825

on the wire smb data structures should be byte aligned


(cherry picked from commit 5ba229419b3a699ec55c1be0198838c3499ca93f)
---
 src/WINNT/afsd/cm_callback.c | 2 +-
 src/WINNT/afsd/smb.h         | 3 ++-
 src/WINNT/afsd/smb3.h        | 7 +++++--
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/WINNT/afsd/cm_callback.c b/src/WINNT/afsd/cm_callback.c
index 5e52b5343..07b88c261 100644
--- a/src/WINNT/afsd/cm_callback.c
+++ b/src/WINNT/afsd/cm_callback.c
@@ -125,7 +125,7 @@ void cm_CallbackNotifyChange(cm_scache_t *scp)
         Sleep(dwDelay);
 
     /* for directories, this sends a change notification on the dir itself */
-	if (scp->fileType == CM_SCACHETYPE_DIRECTORY) {
+    if (scp->fileType == CM_SCACHETYPE_DIRECTORY) {
 #ifndef AFSIFS
         if (scp->flags & CM_SCACHEFLAG_ANYWATCH)
             smb_NotifyChange(0,
diff --git a/src/WINNT/afsd/smb.h b/src/WINNT/afsd/smb.h
index 6f49c52b5..37798a34d 100644
--- a/src/WINNT/afsd/smb.h
+++ b/src/WINNT/afsd/smb.h
@@ -20,6 +20,7 @@
 #define AFS_LARGEFILES
 
 /* basic core protocol SMB structure */
+#pragma pack(push, 1)
 typedef struct smb {
     unsigned char id[4];
     unsigned char com;
@@ -37,7 +38,7 @@ typedef struct smb {
     unsigned char wct;
     unsigned char vdata[1];
 } smb_t;
-
+#pragma pack(pop)
 
 /* reb values */
 #define SMB_FLAGS_SUPPORT_LOCKREAD         0x01
diff --git a/src/WINNT/afsd/smb3.h b/src/WINNT/afsd/smb3.h
index 813c33a7a..5a848dfda 100644
--- a/src/WINNT/afsd/smb3.h
+++ b/src/WINNT/afsd/smb3.h
@@ -40,9 +40,12 @@ typedef struct smb_tran2Dispatch {
         long flags;
 } smb_tran2Dispatch_t;
 
+/* Data Structures that are written to or read from the wire directly
+ * must be byte aligned (no padding).
+ */
+#pragma pack(push, 1)
 typedef struct smb_tran2QFSInfo {
     union {
-#pragma pack(push, 2)
         struct {
             unsigned long FSID;			/* file system ID */
             unsigned long sectorsPerAllocUnit;
@@ -50,7 +53,6 @@ typedef struct smb_tran2QFSInfo {
             unsigned long availAllocUnits;	/* free blocks */
             unsigned short bytesPerSector;	/* bytes per sector */
         } allocInfo;
-#pragma pack(pop)
         struct {
             unsigned long vsn;			/* volume serial number */
             char vnCount;			/* count of chars in label, incl null */
@@ -205,6 +207,7 @@ typedef struct {
 	} QFfileNameInfo;
     } u;
 } smb_tran2QFileInfo_t;
+#pragma pack(pop)
 
 /* more than enough opcodes for today, anyway */
 #define SMB_TRAN2_NOPCODES		20
-- 
2.39.5