diff --git a/smb.h b/smb.h
new file mode 100644
index 0000000..bb05227
--- /dev/null
+++ b/smb.h
@@ -0,0 +1,122 @@
+/* @(#) $Header: /tcpdump/master/tcpdump/smb.h,v 1.9 2004/12/28 22:29:44 guy Exp $ (LBL) */
+/*
+ * Copyright (C) Andrew Tridgell 1995-1999
+ *
+ * This software may be distributed either under the terms of the
+ * BSD-style license that accompanies tcpdump or the GNU GPL version 2
+ * or later
+ */
+
+#define SMBMIN(a,b) ((a)<(b)?(a):(b))
+
+/* the complete */
+#define SMBmkdir      0x00   /* create directory */
+#define SMBrmdir      0x01   /* delete directory */
+#define SMBopen       0x02   /* open file */
+#define SMBcreate     0x03   /* create file */
+#define SMBclose      0x04   /* close file */
+#define SMBflush      0x05   /* flush file */
+#define SMBunlink     0x06   /* delete file */
+#define SMBmv         0x07   /* rename file */
+#define SMBgetatr     0x08   /* get file attributes */
+#define SMBsetatr     0x09   /* set file attributes */
+#define SMBread       0x0A   /* read from file */
+#define SMBwrite      0x0B   /* write to file */
+#define SMBlock       0x0C   /* lock byte range */
+#define SMBunlock     0x0D   /* unlock byte range */
+#define SMBctemp      0x0E   /* create temporary file */
+#define SMBmknew      0x0F   /* make new file */
+#define SMBchkpth     0x10   /* check directory path */
+#define SMBexit       0x11   /* process exit */
+#define SMBlseek      0x12   /* seek */
+#define SMBtcon       0x70   /* tree connect */
+#define SMBtconX      0x75   /* tree connect and X*/
+#define SMBtdis       0x71   /* tree disconnect */
+#define SMBnegprot    0x72   /* negotiate protocol */
+#define SMBdskattr    0x80   /* get disk attributes */
+#define SMBsearch     0x81   /* search directory */
+#define SMBsplopen    0xC0   /* open print spool file */
+#define SMBsplwr      0xC1   /* write to print spool file */
+#define SMBsplclose   0xC2   /* close print spool file */
+#define SMBsplretq    0xC3   /* return print queue */
+#define SMBsends      0xD0   /* send single block message */
+#define SMBsendb      0xD1   /* send broadcast message */
+#define SMBfwdname    0xD2   /* forward user name */
+#define SMBcancelf    0xD3   /* cancel forward */
+#define SMBgetmac     0xD4   /* get machine name */
+#define SMBsendstrt   0xD5   /* send start of multi-block message */
+#define SMBsendend    0xD6   /* send end of multi-block message */
+#define SMBsendtxt    0xD7   /* send text of multi-block message */
+
+/* Core+ protocol */
+#define SMBlockread	  0x13   /* Lock a range and read */
+#define SMBwriteunlock 0x14 /* Unlock a range then write */
+#define SMBreadbraw   0x1a  /* read a block of data with no smb header */
+#define SMBwritebraw  0x1d  /* write a block of data with no smb header */
+#define SMBwritec     0x20  /* secondary write request */
+#define SMBwriteclose 0x2c  /* write a file then close it */
+
+/* dos extended protocol */
+#define SMBreadBraw      0x1A   /* read block raw */
+#define SMBreadBmpx      0x1B   /* read block multiplexed */
+#define SMBreadBs        0x1C   /* read block (secondary response) */
+#define SMBwriteBraw     0x1D   /* write block raw */
+#define SMBwriteBmpx     0x1E   /* write block multiplexed */
+#define SMBwriteBs       0x1F   /* write block (secondary request) */
+#define SMBwriteC        0x20   /* write complete response */
+#define SMBsetattrE      0x22   /* set file attributes expanded */
+#define SMBgetattrE      0x23   /* get file attributes expanded */
+#define SMBlockingX      0x24   /* lock/unlock byte ranges and X */
+#define SMBtrans         0x25   /* transaction - name, bytes in/out */
+#define SMBtranss        0x26   /* transaction (secondary request/response) */
+#define SMBioctl         0x27   /* IOCTL */
+#define SMBioctls        0x28   /* IOCTL  (secondary request/response) */
+#define SMBcopy          0x29   /* copy */
+#define SMBmove          0x2A   /* move */
+#define SMBecho          0x2B   /* echo */
+#define SMBopenX         0x2D   /* open and X */
+#define SMBreadX         0x2E   /* read and X */
+#define SMBwriteX        0x2F   /* write and X */
+#define SMBsesssetupX    0x73   /* Session Set Up & X (including User Logon) */
+#define SMBffirst        0x82   /* find first */
+#define SMBfunique       0x83   /* find unique */
+#define SMBfclose        0x84   /* find close */
+#define SMBinvalid       0xFE   /* invalid command */
+
+/* Extended 2.0 protocol */
+#define SMBtrans2        0x32   /* TRANS2 protocol set */
+#define SMBtranss2       0x33   /* TRANS2 protocol set, secondary command */
+#define SMBfindclose     0x34   /* Terminate a TRANSACT2_FINDFIRST */
+#define SMBfindnclose    0x35   /* Terminate a TRANSACT2_FINDNOTIFYFIRST */
+#define SMBulogoffX      0x74   /* user logoff */
+
+/* NT SMB extensions. */
+#define SMBnttrans       0xA0   /* NT transact */
+#define SMBnttranss      0xA1   /* NT transact secondary */
+#define SMBntcreateX     0xA2   /* NT create and X */
+#define SMBntcancel      0xA4   /* NT cancel */
+
+/* pathworks special */
+#define pSETDIR '\377'
+
+
+/* these are the TRANS2 sub commands */
+#define TRANSACT2_OPEN          0
+#define TRANSACT2_FINDFIRST     1
+#define TRANSACT2_FINDNEXT      2
+#define TRANSACT2_QFSINFO       3
+#define TRANSACT2_SETFSINFO     4
+#define TRANSACT2_QPATHINFO     5
+#define TRANSACT2_SETPATHINFO   6
+#define TRANSACT2_QFILEINFO     7
+#define TRANSACT2_SETFILEINFO   8
+#define TRANSACT2_FSCTL         9
+#define TRANSACT2_IOCTL           10
+#define TRANSACT2_FINDNOTIFYFIRST 11
+#define TRANSACT2_FINDNOTIFYNEXT  12
+#define TRANSACT2_MKDIR           13
+
+#define PTR_DIFF(p1, p2) ((size_t)(((char *)(p1)) - (char *)(p2)))
+
+/* some protos */
+const u_char *smb_fdata(const u_char *, const char *, const u_char *, int);