2 Unix SMB/Netbios implementation.
4 SMB parameters and setup
5 Copyright (C) Andrew Tridgell 1992-1999
6 Copyright (C) John H Terpstra 1996-1999
7 Copyright (C) Luke Kenneth Casson Leighton 1996-1999
8 Copyright (C) Paul Ashton 1998 - 1999
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 #define BOOLSTR(b) ((b) ? "Yes" : "No")
30 #define BITSETB(ptr,bit) ((((char *)ptr)[0] & (1<<(bit)))!=0)
31 #define BITSETW(ptr,bit) ((SVAL(ptr,0) & (1<<(bit)))!=0)
33 #define IS_BITS_SET_ALL(var,bit) (((var)&(bit))==(bit))
34 #define IS_BITS_SET_SOME(var,bit) (((var)&(bit))!=0)
35 #define IS_BITS_CLR_ALL(var,bit) (((var)&(bit))==0)
36 #define IS_BITS_CLR_SOME(var,bit) (((var)&(bit))!=(bit))
38 /* for readability... */
39 #define IS_DOS_READONLY(test_mode) (((test_mode) & aRONLY) != 0)
40 #define IS_DOS_DIR(test_mode) (((test_mode) & aDIR) != 0)
41 #define IS_DOS_ARCHIVE(test_mode) (((test_mode) & aARCH) != 0)
42 #define IS_DOS_SYSTEM(test_mode) (((test_mode) & aSYSTEM) != 0)
43 #define IS_DOS_HIDDEN(test_mode) (((test_mode) & aHIDDEN) != 0)
45 /* memory-allocation-helpers (idea and names from glib) */
46 #define g_new(type, count) \
47 ((type *) malloc(sizeof(type) * (count)))
48 #define g_new0(type, count) \
49 ((type *) calloc((count), sizeof(type)))
50 #define g_renew(type, mem, count) \
51 ((type *) Realloc(mem, sizeof(type) * (count)))
53 /* zero a structure */
54 #define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
56 /* zero a structure given a pointer to the structure */
57 #define ZERO_STRUCTP(x) { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); }
59 /* zero a structure given a pointer to the structure - no zero check */
60 #define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
62 /* zero an array - note that sizeof(array) must work - ie. it must not be a
64 #define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
66 /* pointer difference macro */
67 #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
70 #define SMB_ASSERT(b) ((b)?(void)0: \
71 (DEBUG(0,("PANIC: assert failed at %s(%d)\n", \
72 __FILE__, __LINE__)), smb_panic("assert failed")))
73 #define SMB_ASSERT_ARRAY(a,n) SMB_ASSERT((sizeof(a)/sizeof((a)[0])) >= (n))
75 /* these are useful macros for checking validity of handles */
76 #define OPEN_FSP(fsp) ((fsp) && (fsp)->open && !(fsp)->is_directory)
77 #define OPEN_CONN(conn) ((conn) && (conn)->open)
78 #define IS_IPC(conn) ((conn) && (conn)->ipc)
79 #define IS_PRINT(conn) ((conn) && (conn)->printer)
80 #define FNUM_OK(fsp,c) (OPEN_FSP(fsp) && (c)==(fsp)->conn)
82 #define CHECK_FSP(fsp,conn) if (!FNUM_OK(fsp,conn)) \
83 return(ERROR(ERRDOS,ERRbadfid))
84 #define CHECK_READ(fsp) if (!(fsp)->can_read) \
85 return(ERROR(ERRDOS,ERRbadaccess))
86 #define CHECK_WRITE(fsp) if (!(fsp)->can_write) \
87 return(ERROR(ERRDOS,ERRbadaccess))
88 #define CHECK_ERROR(fsp) if (HAS_CACHED_ERROR(fsp)) \
89 return(CACHED_ERROR(fsp))
91 /* translates a connection number into a service number */
92 #define SNUM(conn) ((conn)?(conn)->service:-1)
94 /* access various service details */
95 #define SERVICE(snum) (lp_servicename(snum))
96 #define PRINTCAP (lp_printcapname())
97 #define PRINTCOMMAND(snum) (lp_printcommand(snum))
98 #define PRINTERNAME(snum) (lp_printername(snum))
99 #define CAN_WRITE(conn) (!conn->read_only)
100 #define VALID_SNUM(snum) (lp_snum_ok(snum))
101 #define GUEST_OK(snum) (VALID_SNUM(snum) && lp_guest_ok(snum))
102 #define GUEST_ONLY(snum) (VALID_SNUM(snum) && lp_guest_only(snum))
103 #define CAN_SETDIR(snum) (!lp_no_set_dir(snum))
104 #define CAN_PRINT(conn) ((conn) && lp_print_ok((conn)->service))
105 #define MAP_HIDDEN(conn) ((conn) && lp_map_hidden((conn)->service))
106 #define MAP_SYSTEM(conn) ((conn) && lp_map_system((conn)->service))
107 #define MAP_ARCHIVE(conn) ((conn) && lp_map_archive((conn)->service))
108 #define IS_HIDDEN_PATH(conn,path) ((conn) && is_in_path((path),(conn)->hide_list))
109 #define IS_VETO_PATH(conn,path) ((conn) && is_in_path((path),(conn)->veto_list))
110 #define IS_VETO_OPLOCK_PATH(conn,path) ((conn) && is_in_path((path),(conn)->veto_oplock_list))
113 * Used by the stat cache code to check if a returned
114 * stat structure is valid.
117 #define VALID_STAT(st) (st.st_nlink != 0)
118 #define VALID_STAT_OF_DIR(st) (VALID_STAT(st) && S_ISDIR(st.st_mode))
120 #define SMBENCRYPT() (lp_encrypted_passwords())
123 #define MIN(a,b) ((a)<(b)?(a):(b))
126 #define MAX(a,b) ((a)>(b)?(a):(b))
130 #define ABS(a) ((a)>0?(a):(-(a)))
133 /* Macros to get at offsets within smb_lkrng and smb_unlkrng
134 structures. We cannot define these as actual structures
135 due to possible differences in structure packing
136 on different machines/compilers. */
138 #define SMB_LPID_OFFSET(indx) (10 * (indx))
139 #define SMB_LKOFF_OFFSET(indx) ( 2 + (10 * (indx)))
140 #define SMB_LKLEN_OFFSET(indx) ( 6 + (10 * (indx)))
141 #define SMB_LARGE_LKOFF_OFFSET_HIGH(indx) (4 + (20 * (indx)))
142 #define SMB_LARGE_LKOFF_OFFSET_LOW(indx) (8 + (20 * (indx)))
143 #define SMB_LARGE_LKLEN_OFFSET_HIGH(indx) (12 + (20 * (indx)))
144 #define SMB_LARGE_LKLEN_OFFSET_LOW(indx) (16 + (20 * (indx)))
146 /* Macro to cache an error in a write_bmpx_struct */
147 #define CACHE_ERROR(w,c,e) ((w)->wr_errclass = (c), (w)->wr_error = (e), \
148 w->wr_discard = True, -1)
149 /* Macro to test if an error has been cached for this fnum */
150 #define HAS_CACHED_ERROR(fsp) ((fsp)->open && (fsp)->wbmpx_ptr && \
151 (fsp)->wbmpx_ptr->wr_discard)
152 /* Macro to turn the cached error into an error packet */
153 #define CACHED_ERROR(fsp) cached_error_packet(inbuf,outbuf,fsp,__LINE__)
155 /* these are the datagram types */
156 #define DGRAM_DIRECT_UNIQUE 0x10
158 #define ERROR(class,x) error_packet(inbuf,outbuf,class,x,__LINE__)
160 /* this is how errors are generated */
161 #define UNIXERROR(defclass,deferror) unix_error_packet(inbuf,outbuf,defclass,deferror,__LINE__)
163 #define SMB_ROUNDUP(x,g) (((x)+((g)-1))&~((g)-1))
165 /* Extra macros added by Ying Chen at IBM - speed increase by inlining. */
166 #define smb_buf(buf) (buf + smb_size + CVAL(buf,smb_wct)*2)
167 #define smb_buflen(buf) (SVAL(buf,smb_vwv0 + (int)CVAL(buf, smb_wct)*2))
169 /* Note that chain_size must be available as an extern int to this macro. */
170 #define smb_offset(p,buf) (PTR_DIFF(p,buf+4) + chain_size)
172 #define smb_len(buf) (PVAL(buf,3)|(PVAL(buf,2)<<8)|((PVAL(buf,1)&1)<<16))
173 #define _smb_setlen(buf,len) buf[0] = 0; buf[1] = (len&0x10000)>>16; \
174 buf[2] = (len&0xFF00)>>8; buf[3] = len&0xFF;
176 /*********************************************************
177 * Routine to check if a given string matches exactly.
178 * Case can be significant or not.
179 **********************************************************/
181 #define exact_match(str, regexp, case_sig) \
182 ((case_sig?strcmp(str,regexp):strcasecmp(str,regexp)) == 0)
184 /*******************************************************************
185 find the difference in milliseconds between two struct timeval
187 ********************************************************************/
189 #define TvalDiff(tvalold,tvalnew) \
190 (((tvalnew)->tv_sec - (tvalold)->tv_sec)*1000 + \
191 ((int)(tvalnew)->tv_usec - (int)(tvalold)->tv_usec)/1000)
193 /****************************************************************************
194 true if two IP addresses are equal
195 ****************************************************************************/
197 #define ip_equal(ip1,ip2) ((ip1).s_addr == (ip2).s_addr)
199 /*****************************************************************
200 splits out the last subkey of a key
201 *****************************************************************/
203 #define reg_get_subkey(full_keyname, key_name, subkey_name) \
204 split_at_last_component(full_keyname, key_name, '\\', subkey_name)
206 /****************************************************************************
208 ****************************************************************************/
210 #define DPTR_MASK ((uint32)(((uint32)1)<<31))
212 /****************************************************************************
213 Return True if the offset is at zero.
214 ****************************************************************************/
216 #define dptr_zero(buf) ((IVAL(buf,1)&~DPTR_MASK) == 0)
218 /*******************************************************************
219 copy an IP address from one buffer to another
220 ********************************************************************/
222 #define putip(dest,src) memcpy(dest,src,4)
224 /****************************************************************************
225 Make a filename into unix format.
226 ****************************************************************************/
228 #define unix_format(fname) string_replace(fname,'\\','/')
230 /****************************************************************************
231 Make a file into DOS format.
232 ****************************************************************************/
234 #define dos_format(fname) string_replace(fname,'/','\\')
237 #endif /* _SMB_MACROS_H */