Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 289 insertions, 0 deletions

diff --git a/source3/include/smb_macros.h b/source3/include/smb_macros.h
new file mode 100644
index 0000000..4b3989d
--- /dev/null
+++ b/source3/include/smb_macros.h
@@ -0,0 +1,289 @@
+/* 
+   Unix SMB/CIFS implementation.
+   SMB parameters and setup
+   Copyright (C) Andrew Tridgell 1992-1999
+   Copyright (C) John H Terpstra 1996-1999
+   Copyright (C) Luke Kenneth Casson Leighton 1996-1999
+   Copyright (C) Paul Ashton 1998 - 1999
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _SMB_MACROS_H
+#define _SMB_MACROS_H
+
+/* Misc bit macros */
+#define BOOLSTR(b) ((b) ? "Yes" : "No")
+#define BITSETW(ptr,bit) ((SVAL(ptr,0) & (1<<(bit)))!=0)
+
+/* these are useful macros for checking validity of handles */
+#define IS_IPC(conn)       ((conn) && (conn)->ipc)
+#define IS_PRINT(conn)       ((conn) && (conn)->printer)
+
+#define CHECK_READ(fsp,req) \
+	((!(fsp)->fsp_flags.is_pathref) &&  \
+	 (fsp_get_io_fd(fsp) != -1) && \
+	 (((fsp)->fsp_flags.can_read) || \
+	  ((req->flags2 & FLAGS2_READ_PERMIT_EXECUTE) && \
+	   (fsp->access_mask & FILE_EXECUTE))))
+
+/*
+ * This is not documented in revision 49 of [MS-SMB2] but should be added in a
+ * later revision (and torture test smb2.read.access as well as
+ * smb2.ioctl_copy_chunk_bad_access against Server 2012R2 confirms this)
+ *
+ * If FILE_EXECUTE is granted to a handle then the SMB2 server acts as if
+ * FILE_READ_DATA has also been granted. We must still keep the original granted
+ * mask, because with ioctl requests, access checks are made on the file handle,
+ * "below" the SMB2 server, and the object store below the SMB layer is not
+ * aware of this arrangement (see smb2.ioctl.copy_chunk_bad_access torture
+ * test).
+ */
+#define CHECK_READ_SMB2(fsp) \
+	((!(fsp)->fsp_flags.is_pathref) &&  \
+	 (fsp_get_io_fd(fsp) != -1) && \
+	 (((fsp)->fsp_flags.can_read) || \
+	  (fsp->access_mask & FILE_EXECUTE)))
+
+/* An IOCTL readability check (validating read access
+ * when the IOCTL code requires it)
+ * http://social.technet.microsoft.com/wiki/contents/articles/24653.decoding-io-control-codes-ioctl-fsctl-and-deviceiocodes-with-table-of-known-values.aspx
+ * ). On Windows servers, this is done by the IO manager, which is unaware of
+ * the "if execute is granted then also grant read" arrangement.
+ */
+#define CHECK_READ_IOCTL(fsp) \
+	((!(fsp)->fsp_flags.is_pathref) &&  \
+	 (fsp_get_io_fd(fsp) != -1) && \
+	 (((fsp)->fsp_flags.can_read)))
+
+#define ERROR_WAS_LOCK_DENIED(status) (NT_STATUS_EQUAL((status), NT_STATUS_LOCK_NOT_GRANTED) || \
+				NT_STATUS_EQUAL((status), NT_STATUS_FILE_LOCK_CONFLICT) )
+
+/* the service number for the [globals] defaults */ 
+#define GLOBAL_SECTION_SNUM	(-1)
+/* translates a connection number into a service number */
+#define SNUM(conn)         	((conn)?(conn)->params->service:GLOBAL_SECTION_SNUM)
+
+
+/* access various service details */
+#define CAN_WRITE(conn)    (!conn->read_only)
+#define VALID_SNUM(snum)   (lp_snum_ok(snum))
+#define GUEST_OK(snum)     (VALID_SNUM(snum) && lp_guest_ok(snum))
+#define GUEST_ONLY(snum)   (VALID_SNUM(snum) && lp_guest_only(snum))
+#define CAN_PRINT(conn)    ((conn) && lp_printable(SNUM(conn)))
+#define MAP_HIDDEN(conn)   ((conn) && lp_map_hidden(SNUM(conn)))
+#define MAP_SYSTEM(conn)   ((conn) && lp_map_system(SNUM(conn)))
+#define MAP_ARCHIVE(conn)   ((conn) && lp_map_archive(SNUM(conn)))
+#define IS_HIDDEN_PATH(conn,path)  ((conn) && is_in_path((path),(conn)->hide_list,(conn)->case_sensitive))
+#define IS_VETO_PATH(conn,path)  ((conn) && is_in_path((path),(conn)->veto_list,(conn)->case_sensitive))
+#define IS_VETO_OPLOCK_PATH(conn,path)  ((conn) && is_in_path((path),(conn)->veto_oplock_list,(conn)->case_sensitive))
+
+/* 
+ * Used by the stat cache code to check if a returned
+ * stat structure is valid.
+ */
+
+#define VALID_STAT(st) ((st).st_ex_nlink != 0)
+#define VALID_STAT_OF_DIR(st) (VALID_STAT(st) && S_ISDIR((st).st_ex_mode))
+#define SET_STAT_INVALID(st) { \
+		(st).st_ex_nlink = 0;					\
+		(st).cached_dos_attributes = FILE_ATTRIBUTE_INVALID;	\
+};
+
+/* Macros to get at offsets within smb_lkrng and smb_unlkrng
+   structures. We cannot define these as actual structures
+   due to possible differences in structure packing
+   on different machines/compilers. */
+
+#define SMB_LPID_OFFSET(indx) (10 * (indx))
+#define SMB_LKOFF_OFFSET(indx) ( 2 + (10 * (indx)))
+#define SMB_LKLEN_OFFSET(indx) ( 6 + (10 * (indx)))
+#define SMB_LARGE_LPID_OFFSET(indx) (20 * (indx))
+#define SMB_LARGE_LKOFF_OFFSET_HIGH(indx) (4 + (20 * (indx)))
+#define SMB_LARGE_LKOFF_OFFSET_LOW(indx) (8 + (20 * (indx)))
+#define SMB_LARGE_LKLEN_OFFSET_HIGH(indx) (12 + (20 * (indx)))
+#define SMB_LARGE_LKLEN_OFFSET_LOW(indx) (16 + (20 * (indx)))
+
+#define ERROR_NT(status) error_packet(outbuf,0,0,status,__LINE__,__FILE__)
+#define ERROR_BOTH(status,class,code) error_packet(outbuf,class,code,status,__LINE__,__FILE__)
+
+#define reply_nterror(req,status) reply_nt_error(req,status,__LINE__,__FILE__)
+#define reply_force_doserror(req,eclass,ecode) reply_force_dos_error(req,eclass,ecode,__LINE__,__FILE__)
+#define reply_botherror(req,status,eclass,ecode) reply_both_error(req,eclass,ecode,status,__LINE__,__FILE__)
+
+#if 0
+/* defined in IDL */
+/* these are the datagram types */
+#define DGRAM_DIRECT_UNIQUE 0x10
+#endif
+
+#define SMB_ROUNDUP(x,r) ( ((x)%(r)) ? ( (((x)+(r))/(r))*(r) ) : (x))
+
+/* Extra macros added by Ying Chen at IBM - speed increase by inlining. */
+#define smb_buf(buf) (((char *)(buf)) + smb_size + CVAL(buf,smb_wct)*2)
+#define smb_buf_const(buf) (((const char *)(buf)) + smb_size + CVAL(buf,smb_wct)*2)
+#define smb_buflen(buf) (SVAL(buf,smb_vwv0 + (int)CVAL(buf, smb_wct)*2))
+
+/* the remaining number of bytes in smb buffer 'buf' from pointer 'p'. */
+#define smbreq_bufrem(req, p) ((req)->buflen < PTR_DIFF((p), (req)->buf) ? 0 : (req)->buflen - PTR_DIFF((p), (req)->buf))
+
+
+/* Note that chain_size must be available as an extern int to this macro. */
+#define smb_offset(p,buf) (PTR_DIFF(p,buf+4))
+
+#define smb_len(buf) smb_len_nbt(buf)
+#define _smb_setlen(buf, len) _smb_setlen_nbt(buf, len)
+#define smb_setlen(buf, len) smb_setlen_nbt(buf, len)
+
+#define smb_len_large(buf) smb_len_tcp(buf)
+#define _smb_setlen_large(buf, len) _smb_setlen_tcp(buf, len)
+
+#define ENCRYPTION_REQUIRED(conn) ((conn) ? ((conn)->encrypt_level == SMB_SIGNING_REQUIRED) : false)
+#define IS_CONN_ENCRYPTED(conn) ((conn) ? (conn)->encrypted_tid : false)
+
+/****************************************************************************
+ Return True if the offset is at zero.
+****************************************************************************/
+
+#define dptr_zero(buf) (IVAL(buf,1) == 0)
+
+/*******************************************************************
+copy an IP address from one buffer to another
+********************************************************************/
+
+#define putip(dest,src) memcpy(dest,src,4)
+
+/*******************************************************************
+ Return True if a server has CIFS UNIX capabilities.
+********************************************************************/
+
+#define SERVER_HAS_UNIX_CIFS(c) (smb1cli_conn_capabilities(c->conn) & CAP_UNIX)
+
+/****************************************************************************
+ Make a filename into unix format.
+****************************************************************************/
+
+#define IS_DIRECTORY_SEP(c) ((c) == '\\' || (c) == '/')
+#define unix_format(fname) string_replace(fname,'\\','/')
+
+/****************************************************************************
+ Make a file into DOS format.
+****************************************************************************/
+
+#define dos_format(fname) string_replace(fname,'/','\\')
+
+/*****************************************************************************
+ Check to see if we are a DC for this domain
+*****************************************************************************/
+
+#define IS_DC  (lp_server_role()==ROLE_DOMAIN_PDC || lp_server_role()==ROLE_DOMAIN_BDC || lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC || lp_server_role() == ROLE_IPA_DC)
+#define IS_AD_DC  (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC)
+
+/*
+ * If you add any entries to KERBEROS_VERIFY defines, please modify the below expressions
+ * so they remain accurate.
+ */
+#define USE_KERBEROS_KEYTAB (KERBEROS_VERIFY_SECRETS != lp_kerberos_method())
+#define USE_SYSTEM_KEYTAB \
+    ((KERBEROS_VERIFY_SECRETS_AND_KEYTAB == lp_kerberos_method()) || \
+     (KERBEROS_VERIFY_SYSTEM_KEYTAB == lp_kerberos_method()))
+
+/*****************************************************************************
+ Safe allocation macros.
+*****************************************************************************/
+
+#define SMB_MALLOC_ARRAY(type,count) (type *)malloc_array(sizeof(type),(count))
+#define SMB_MEMALIGN_ARRAY(type,align,count) (type *)memalign_array(sizeof(type),align,(count))
+#define SMB_REALLOC(p,s) Realloc((p),(s),True)	/* Always frees p on error or s == 0 */
+#define SMB_REALLOC_ARRAY(p,type,count) (type *)realloc_array((p),sizeof(type),(count),True) /* Always frees p on error or s == 0 */
+#define SMB_CALLOC_ARRAY(type,count) (type *)calloc_array(sizeof(type),(count))
+#define SMB_XMALLOC_P(type) (type *)smb_xmalloc_array(sizeof(type),1)
+#define SMB_XMALLOC_ARRAY(type,count) (type *)smb_xmalloc_array(sizeof(type),(count))
+
+#define TALLOC(ctx, size) talloc_named_const(ctx, size, __location__)
+#define TALLOC_SIZE(ctx, size) talloc_named_const(ctx, size, __location__)
+#define TALLOC_REALLOC(ctx, ptr, count) _talloc_realloc(ctx, ptr, count, __location__)
+#define talloc_destroy(ctx) talloc_free(ctx)
+#ifndef TALLOC_FREE
+#define TALLOC_FREE(ctx) do { talloc_free(ctx); ctx=NULL; } while(0)
+#endif
+
+/* only define PARANOID_MALLOC_CHECKER with --enable-developer */
+
+#if defined(DEVELOPER)
+#  define PARANOID_MALLOC_CHECKER 1
+#endif
+
+#if defined(PARANOID_MALLOC_CHECKER)
+
+/* Get medieval on our ass about malloc.... */
+
+/* Restrictions on malloc/realloc/calloc. */
+#ifdef malloc
+#undef malloc
+#endif
+#define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
+
+#ifdef realloc
+#undef realloc
+#endif
+#define realloc(p,s) __ERROR_DONT_USE_REALLOC_DIRECTLY
+
+#ifdef calloc
+#undef calloc
+#endif
+#define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
+
+#ifdef strndup
+#undef strndup
+#endif
+#define strndup(s,n) __ERROR_DONT_USE_STRNDUP_DIRECTLY
+
+#ifdef strdup
+#undef strdup
+#endif
+#define strdup(s) __ERROR_DONT_USE_STRDUP_DIRECTLY
+
+#define SMB_MALLOC(s) malloc_(s)
+#define SMB_MALLOC_P(type) (type *)malloc_(sizeof(type))
+
+#define SMB_STRDUP(s) smb_xstrdup(s)
+#define SMB_STRNDUP(s,n) smb_xstrndup(s,n)
+
+#else
+
+/* Regular malloc code. */
+
+#define SMB_MALLOC(s) malloc(s)
+#define SMB_MALLOC_P(type) (type *)malloc(sizeof(type))
+
+#define SMB_STRDUP(s) strdup(s)
+#define SMB_STRNDUP(s,n) strndup(s,n)
+
+#endif
+
+#define ADD_TO_ARRAY(mem_ctx, type, elem, array, num) \
+do { \
+	*(array) = ((mem_ctx) != NULL) ? \
+		talloc_realloc(mem_ctx, (*(array)), type, (*(num))+1) : \
+		SMB_REALLOC_ARRAY((*(array)), type, (*(num))+1); \
+	SMB_ASSERT((*(array)) != NULL); \
+	(*(array))[*(num)] = (elem); \
+	(*(num)) += 1; \
+} while (0)
+
+#define ADD_TO_LARGE_ARRAY(mem_ctx, type, elem, array, num, size) \
+	add_to_large_array((mem_ctx), sizeof(type), &(elem), (void *)(array), (num), (size));
+
+#endif /* _SMB_MACROS_H */