2 Unix SMB/Netbios implementation.
4 Main SMB server routines
5 Copyright (C) Andrew Tridgell 1992-1995
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 pstring servicesf = CONFIGFILE;
26 extern pstring debugf;
27 extern pstring sesssetup_user;
29 char *InBuffer = NULL;
30 char *OutBuffer = NULL;
31 char *last_inbuf = NULL;
33 BOOL share_mode_pending = False;
35 /* the last message the was processed */
36 int last_message = -1;
38 /* a useful macro to debug the last message processed */
39 #define LAST_MESSAGE() smb_fn_name(last_message)
42 extern int DEBUGLEVEL;
43 extern int case_default;
44 extern BOOL case_sensitive;
45 extern BOOL case_preserve;
46 extern BOOL use_mangled_map;
47 extern BOOL short_case_preserve;
48 extern BOOL case_mangle;
49 extern time_t smb_last_time;
51 extern int smb_read_error;
53 extern pstring user_socket_options;
55 connection_struct Connections[MAX_CONNECTIONS];
56 files_struct Files[MAX_OPEN_FILES];
60 int maxxmit = BUFFER_SIZE;
62 /* a fnum to use when chaining */
65 /* number of open connections */
66 static int num_connections_open = 0;
68 extern fstring remote_machine;
71 /* these can be set by some functions to override the error codes */
72 int unix_ERR_class=SUCCESS;
76 extern int extra_time_offset;
78 extern pstring myhostname;
80 static int find_free_connection(int hash);
82 /* for readability... */
83 #define IS_DOS_READONLY(test_mode) (((test_mode) & aRONLY) != 0)
84 #define IS_DOS_DIR(test_mode) (((test_mode) & aDIR) != 0)
85 #define IS_DOS_ARCHIVE(test_mode) (((test_mode) & aARCH) != 0)
86 #define IS_DOS_SYSTEM(test_mode) (((test_mode) & aSYSTEM) != 0)
87 #define IS_DOS_HIDDEN(test_mode) (((test_mode) & aHIDDEN) != 0)
91 /****************************************************************************
92 change a dos mode to a unix mode
93 base permission for files:
94 everybody gets read bit set
95 dos readonly is represented in unix by removing everyone's write bit
96 dos archive is represented in unix by the user's execute bit
97 dos system is represented in unix by the group's execute bit
98 dos hidden is represented in unix by the other's execute bit
99 base permission for directories:
100 dos directory is represented in unix by unix's dir bit and the exec bit
101 ****************************************************************************/
102 mode_t unix_mode(int cnum,int dosmode)
104 mode_t result = (S_IRUSR | S_IRGRP | S_IROTH);
106 if ( !IS_DOS_READONLY(dosmode) )
107 result |= (S_IWUSR | S_IWGRP | S_IWOTH);
109 if (IS_DOS_DIR(dosmode))
110 result |= (S_IFDIR | S_IXUSR | S_IXGRP | S_IXOTH | S_IWUSR);
112 if (MAP_ARCHIVE(cnum) && IS_DOS_ARCHIVE(dosmode))
115 if (MAP_SYSTEM(cnum) && IS_DOS_SYSTEM(dosmode))
118 if (MAP_HIDDEN(cnum) && IS_DOS_HIDDEN(dosmode))
121 result &= CREATE_MODE(cnum);
126 /****************************************************************************
127 change a unix mode to a dos mode
128 ****************************************************************************/
129 int dos_mode(int cnum,char *path,struct stat *sbuf)
132 extern struct current_user current_user;
134 if (CAN_WRITE(cnum) && !lp_alternate_permissions(SNUM(cnum))) {
135 if (!((sbuf->st_mode & S_IWOTH) ||
136 Connections[cnum].admin_user ||
137 ((sbuf->st_mode & S_IWUSR) && current_user.uid==sbuf->st_uid) ||
138 ((sbuf->st_mode & S_IWGRP) &&
139 in_group(sbuf->st_gid,current_user.gid,
140 current_user.ngroups,current_user.igroups))))
143 if ((sbuf->st_mode & S_IWUSR) == 0)
147 if ((sbuf->st_mode & S_IXUSR) != 0)
150 if (MAP_SYSTEM(cnum) && ((sbuf->st_mode & S_IXGRP) != 0))
153 if (MAP_HIDDEN(cnum) && ((sbuf->st_mode & S_IXOTH) != 0))
156 if (S_ISDIR(sbuf->st_mode))
157 result = aDIR | (result & aRONLY);
160 if (S_ISLNK(sbuf->st_mode) && S_ISDIR(sbuf->st_mode))
164 /* hide files with a name starting with a . */
165 if (lp_hide_dot_files(SNUM(cnum)))
167 char *p = strrchr(path,'/');
173 if (p[0] == '.' && p[1] != '.' && p[1] != 0)
181 /*******************************************************************
182 chmod a file - but preserve some bits
183 ********************************************************************/
184 int dos_chmod(int cnum,char *fname,int dosmode,struct stat *st)
193 if (sys_stat(fname,st)) return(-1);
196 if (S_ISDIR(st->st_mode)) dosmode |= aDIR;
198 if (dos_mode(cnum,fname,st) == dosmode) return(0);
200 unixmode = unix_mode(cnum,dosmode);
202 /* preserve the s bits */
203 mask |= (S_ISUID | S_ISGID);
205 /* preserve the t bit */
210 /* possibly preserve the x bits */
211 if (!MAP_ARCHIVE(cnum)) mask |= S_IXUSR;
212 if (!MAP_SYSTEM(cnum)) mask |= S_IXGRP;
213 if (!MAP_HIDDEN(cnum)) mask |= S_IXOTH;
215 unixmode |= (st->st_mode & mask);
217 /* if we previously had any r bits set then leave them alone */
218 if ((tmp = st->st_mode & (S_IRUSR|S_IRGRP|S_IROTH))) {
219 unixmode &= ~(S_IRUSR|S_IRGRP|S_IROTH);
223 /* if we previously had any w bits set then leave them alone
224 if the new mode is not rdonly */
225 if (!IS_DOS_READONLY(dosmode) &&
226 (tmp = st->st_mode & (S_IWUSR|S_IWGRP|S_IWOTH))) {
227 unixmode &= ~(S_IWUSR|S_IWGRP|S_IWOTH);
231 return(sys_chmod(fname,unixmode));
235 /****************************************************************************
236 check if two filenames are equal
238 this needs to be careful about whether we are case sensitive
239 ****************************************************************************/
240 static BOOL fname_equal(char *name1, char *name2)
242 int l1 = strlen(name1);
243 int l2 = strlen(name2);
245 /* handle filenames ending in a single dot */
246 if (l1-l2 == 1 && name1[l1-1] == '.' && lp_strip_dot())
250 ret = fname_equal(name1,name2);
255 if (l2-l1 == 1 && name2[l2-1] == '.' && lp_strip_dot())
259 ret = fname_equal(name1,name2);
264 /* now normal filename handling */
266 return(strcmp(name1,name2) == 0);
268 return(strequal(name1,name2));
272 /****************************************************************************
273 mangle the 2nd name and check if it is then equal to the first name
274 ****************************************************************************/
275 static BOOL mangled_equal(char *name1, char *name2)
282 strcpy(tmpname,name2);
283 mangle_name_83(tmpname);
285 return(strequal(name1,tmpname));
289 /****************************************************************************
290 scan a directory to find a filename, matching without case sensitivity
292 If the name looks like a mangled name then try via the mangling functions
293 ****************************************************************************/
294 static BOOL scan_directory(char *path, char *name,int snum,BOOL docache)
301 mangled = is_mangled(name);
303 /* handle null paths */
307 if (docache && (dname = DirCacheCheck(path,name,snum))) {
313 check_mangled_stack(name);
315 /* open the directory */
316 if (!(cur_dir = OpenDir(path)))
318 DEBUG(3,("scan dir didn't open dir [%s]\n",path));
322 /* now scan for matching names */
323 while ((dname = ReadDirName(cur_dir)))
326 (strequal(dname,".") || strequal(dname,"..")))
330 if (!name_map_mangle(name2,False,snum)) continue;
332 if ((mangled && mangled_equal(name,name2))
333 || fname_equal(name, name2))
335 /* we've found the file, change it's name and return */
336 if (docache) DirCacheAdd(path,name,dname,snum);
347 /****************************************************************************
348 This routine is called to convert names from the dos namespace to unix
349 namespace. It needs to handle any case conversions, mangling, format
352 We assume that we have already done a chdir() to the right "root" directory
355 The function will return False if some part of the name except for the last
356 part cannot be resolved
357 ****************************************************************************/
358 BOOL unix_convert(char *name,int cnum)
366 /* convert to basic unix format - removing \ chars and cleaning it up */
368 unix_clean_name(name);
370 if (!case_sensitive &&
371 (!case_preserve || (is_8_3(name) && !short_case_preserve)))
374 /* names must be relative to the root of the service - trim any leading /.
375 also trim trailing /'s */
376 trim_string(name,"/","/");
378 /* check if it's a printer file */
379 if (Connections[cnum].printer)
381 if ((! *name) || strchr(name,'/') || !is_8_3(name))
385 sprintf(name2,"%.6s.XXXXXX",remote_machine);
386 /* sanitise the name */
387 for (s=name2 ; *s ; s++)
388 if (!issafe(*s)) *s = '_';
389 strcpy(name,(char *)mktemp(name2));
394 /* stat the name - if it exists then we are all done! */
395 if (sys_stat(name,&st) == 0)
398 DEBUG(5,("unix_convert(%s,%d)\n",name,cnum));
400 /* a special case - if we don't have any mangling chars and are case
401 sensitive then searching won't help */
402 if (case_sensitive && !is_mangled(name) &&
403 !lp_strip_dot() && !use_mangled_map)
406 /* now we need to recursively match the name against the real
407 directory structure */
410 while (strncmp(start,"./",2) == 0)
413 /* now match each part of the path name separately, trying the names
414 as is first, then trying to scan the directory for matching names */
415 for (;start;start = (end?end+1:(char *)NULL))
417 /* pinpoint the end of this section of the filename */
418 end = strchr(start, '/');
420 /* chop the name at this point */
423 /* check if the name exists up to this point */
424 if (sys_stat(name, &st) == 0)
426 /* it exists. it must either be a directory or this must be
427 the last part of the path for it to be OK */
428 if (end && !(st.st_mode & S_IFDIR))
430 /* an intermediate part of the name isn't a directory */
431 DEBUG(5,("Not a dir %s\n",start));
442 /* remember the rest of the pathname so it can be restored
444 if (end) strcpy(rest,end+1);
447 /* try to find this part of the path in the directory */
448 if (strchr(start,'?') || strchr(start,'*') ||
449 !scan_directory(dirpath, start, SNUM(cnum), end?True:False))
453 /* an intermediate part of the name can't be found */
454 DEBUG(5,("Intermediate not found %s\n",start));
459 /* just the last part of the name doesn't exist */
460 /* we may need to strupper() or strlower() it in case
461 this conversion is being used for file creation
463 /* if the filename is of mixed case then don't normalise it */
464 if (!case_preserve &&
465 (!strhasupper(start) || !strhaslower(start)))
468 /* check on the mangled stack to see if we can recover the
469 base of the filename */
470 if (is_mangled(start))
471 check_mangled_stack(start);
473 DEBUG(5,("New file %s\n",start));
477 /* restore the rest of the string */
480 strcpy(start+strlen(start)+1,rest);
481 end = start + strlen(start);
485 /* add to the dirpath that we have resolved so far */
486 if (*dirpath) strcat(dirpath,"/");
487 strcat(dirpath,start);
489 /* restore the / that we wiped out earlier */
493 /* the name has been resolved */
494 DEBUG(5,("conversion finished %s\n",name));
499 /****************************************************************************
500 normalise for DOS usage
501 ****************************************************************************/
502 static void disk_norm(int *bsize,int *dfree,int *dsize)
504 /* check if the disk is beyond the max disk size */
505 int maxdisksize = lp_maxdisksize();
507 /* convert to blocks - and don't overflow */
508 maxdisksize = ((maxdisksize*1024)/(*bsize))*1024;
509 if (*dsize > maxdisksize) *dsize = maxdisksize;
510 if (*dfree > maxdisksize) *dfree = maxdisksize-1; /* the -1 should stop
515 while (*dfree > WORDMAX || *dsize > WORDMAX || *bsize < 512)
520 if (*bsize > WORDMAX )
523 if (*dsize > WORDMAX)
525 if (*dfree > WORDMAX)
532 /****************************************************************************
533 return number of 1K blocks available on a path and total number
534 ****************************************************************************/
535 int disk_free(char *path,int *bsize,int *dfree,int *dsize)
537 char *df_command = lp_dfree_command();
551 if (disk_quotas(path, bsize, dfree, dsize))
553 disk_norm(bsize,dfree,dsize);
554 return(((*bsize)/1024)*(*dfree));
559 /* possibly use system() to get the result */
560 if (df_command && *df_command)
566 sprintf(outfile,"/tmp/dfree.smb.%d",(int)getpid());
567 sprintf(syscmd,"%s %s",df_command,path);
568 standard_sub_basic(syscmd);
570 ret = smbrun(syscmd,outfile);
571 DEBUG(3,("Running the command `%s' gave %d\n",syscmd,ret));
574 FILE *f = fopen(outfile,"r");
580 fscanf(f,"%d %d %d",dsize,dfree,bsize);
584 DEBUG(0,("Can't open %s\n",outfile));
588 disk_norm(bsize,dfree,dsize);
589 return(((*bsize)/1024)*(*dfree));
593 DEBUG(1,("Warning - no statfs function\n"));
597 if (statfs(path,&fs,sizeof(fs),0) != 0)
600 if (statvfs(path, &fs))
603 if (statfs(path,&fs,sizeof(fs)) == -1)
605 if (statfs(path,&fs) == -1)
607 #endif /* USE_STATVFS */
610 DEBUG(3,("dfree call failed code errno=%d\n",errno));
614 return(((*bsize)/1024)*(*dfree));
619 *dfree = fs.fd_req.bfree;
620 *dsize = fs.fd_req.btot;
623 *bsize = fs.f_frsize;
626 /* eg: osf1 has f_fsize = fundamental filesystem block size,
627 f_bsize = optimal transfer block size (MX: 94-04-19) */
632 #endif /* USE_STATVFS */
637 *dfree = fs.f_bavail;
639 *dsize = fs.f_blocks;
642 #if defined(SCO) || defined(ISC) || defined(MIPS)
646 /* handle rediculous bsize values - some OSes are broken */
647 if ((*bsize) < 512 || (*bsize)>0xFFFF) *bsize = 1024;
649 disk_norm(bsize,dfree,dsize);
655 DEBUG(0,("dfree seems to be broken on your system\n"));
656 *dsize = 20*1024*1024/(*bsize);
657 *dfree = MAX(1,*dfree);
659 return(((*bsize)/1024)*(*dfree));
664 /****************************************************************************
665 wrap it to get filenames right
666 ****************************************************************************/
667 int sys_disk_free(char *path,int *bsize,int *dfree,int *dsize)
669 return(disk_free(dos_to_unix(path,False),bsize,dfree,dsize));
674 /****************************************************************************
675 check a filename - possibly caling reducename
677 This is called by every routine before it allows an operation on a filename.
678 It does any final confirmation necessary to ensure that the filename is
679 a valid one for the user to access.
680 ****************************************************************************/
681 BOOL check_name(char *name,int cnum)
687 ret = reduce_name(name,Connections[cnum].connectpath,lp_widelinks(SNUM(cnum)));
689 DEBUG(5,("check_name on %s failed\n",name));
694 /****************************************************************************
695 check a filename - possibly caling reducename
696 ****************************************************************************/
697 static void check_for_pipe(char *fname)
699 /* special case of pipe opens */
703 if (strstr(s,"pipe/"))
705 DEBUG(3,("Rejecting named pipe open for %s\n",fname));
706 unix_ERR_class = ERRSRV;
707 unix_ERR_code = ERRaccess;
712 /****************************************************************************
714 ****************************************************************************/
715 void open_file(int fnum,int cnum,char *fname1,int flags,int mode)
719 Files[fnum].open = False;
723 strcpy(fname,fname1);
725 /* check permissions */
726 if ((flags != O_RDONLY) && !CAN_WRITE(cnum) && !Connections[cnum].printer)
728 DEBUG(3,("Permission denied opening %s\n",fname));
729 check_for_pipe(fname);
733 /* this handles a bug in Win95 - it doesn't say to create the file when it
735 if (Connections[cnum].printer)
739 if (flags == O_WRONLY)
740 DEBUG(3,("Bug in client? Set O_WRONLY without O_CREAT\n"));
744 /* XXXX - is this OK?? */
745 /* this works around a utime bug but can cause other problems */
746 if ((flags & (O_WRONLY|O_RDWR)) && (flags & O_CREAT) && !(flags & O_APPEND))
751 Files[fnum].fd = sys_open(fname,flags,mode);
753 if ((Files[fnum].fd>=0) &&
754 Connections[cnum].printer && lp_minprintspace(SNUM(cnum))) {
759 p = strrchr(dname,'/');
761 if (sys_disk_free(dname,&dum1,&dum2,&dum3) <
762 lp_minprintspace(SNUM(cnum))) {
763 close(Files[fnum].fd);
772 /* Fix for files ending in '.' */
773 if((Files[fnum].fd == -1) && (errno == ENOENT) &&
774 (strchr(fname,'.')==NULL))
777 Files[fnum].fd = sys_open(fname,flags,mode);
780 #if (defined(ENAMETOOLONG) && defined(HAVE_PATHCONF))
781 if ((Files[fnum].fd == -1) && (errno == ENAMETOOLONG))
784 char *p = strrchr(fname, '/');
786 if (p == fname) /* name is "/xxx" */
788 max_len = pathconf("/", _PC_NAME_MAX);
791 else if ((p == NULL) || (p == fname))
794 max_len = pathconf(".", _PC_NAME_MAX);
799 max_len = pathconf(fname, _PC_NAME_MAX);
803 if (strlen(p) > max_len)
805 char tmp = p[max_len];
808 if ((Files[fnum].fd = sys_open(fname,flags,mode)) == -1)
814 if (Files[fnum].fd < 0)
816 DEBUG(3,("Error opening file %s (%s) (flags=%d)\n",
817 fname,strerror(errno),flags));
818 check_for_pipe(fname);
822 if (Files[fnum].fd >= 0)
825 Connections[cnum].num_files_open++;
826 fstat(Files[fnum].fd,&st);
827 Files[fnum].mode = st.st_mode;
828 Files[fnum].open_time = time(NULL);
829 Files[fnum].size = 0;
830 Files[fnum].pos = -1;
831 Files[fnum].open = True;
832 Files[fnum].mmap_ptr = NULL;
833 Files[fnum].mmap_size = 0;
834 Files[fnum].can_lock = True;
835 Files[fnum].can_read = ((flags & O_WRONLY)==0);
836 Files[fnum].can_write = ((flags & (O_WRONLY|O_RDWR))!=0);
837 Files[fnum].share_mode = 0;
838 Files[fnum].share_pending = False;
839 Files[fnum].print_file = Connections[cnum].printer;
840 Files[fnum].modified = False;
841 Files[fnum].cnum = cnum;
842 string_set(&Files[fnum].name,fname);
843 Files[fnum].wbmpx_ptr = NULL;
846 * If the printer is marked as postscript output a leading
847 * file identifier to ensure the file is treated as a raw
849 * This has a similar effect as CtrlD=0 in WIN.INI file.
850 * tim@fsg.com 09/06/94
852 if (Files[fnum].print_file && POSTSCRIPT(cnum) &&
853 Files[fnum].can_write)
855 DEBUG(3,("Writing postscript line\n"));
856 write_file(fnum,"%!\n",3);
859 DEBUG(2,("%s %s opened file %s read=%s write=%s (numopen=%d fnum=%d)\n",
860 timestring(),Connections[cnum].user,fname,
861 BOOLSTR(Files[fnum].can_read),BOOLSTR(Files[fnum].can_write),
862 Connections[cnum].num_files_open,fnum));
867 /* mmap it if read-only */
868 if (!Files[fnum].can_write)
870 Files[fnum].mmap_size = file_size(fname);
871 Files[fnum].mmap_ptr = (char *)mmap(NULL,Files[fnum].mmap_size,
872 PROT_READ,MAP_SHARED,Files[fnum].fd,0);
874 if (Files[fnum].mmap_ptr == (char *)-1 || !Files[fnum].mmap_ptr)
876 DEBUG(3,("Failed to mmap() %s - %s\n",fname,strerror(errno)));
877 Files[fnum].mmap_ptr = NULL;
883 /*******************************************************************
885 ********************************************************************/
886 void sync_file(int fnum)
889 fsync(Files[fnum].fd);
893 /****************************************************************************
894 run a file if it is a magic script
895 ****************************************************************************/
896 static void check_magic(int fnum,int cnum)
898 if (!*lp_magicscript(SNUM(cnum)))
901 DEBUG(5,("checking magic for %s\n",Files[fnum].name));
905 if (!(p = strrchr(Files[fnum].name,'/')))
906 p = Files[fnum].name;
910 if (!strequal(lp_magicscript(SNUM(cnum)),p))
916 pstring magic_output;
918 strcpy(fname,Files[fnum].name);
920 if (*lp_magicoutput(SNUM(cnum)))
921 strcpy(magic_output,lp_magicoutput(SNUM(cnum)));
923 sprintf(magic_output,"%s.out",fname);
926 ret = smbrun(fname,magic_output);
927 DEBUG(3,("Invoking magic command %s gave %d\n",fname,ret));
933 /****************************************************************************
934 close a file - possibly invalidating the read prediction
935 ****************************************************************************/
936 void close_file(int fnum)
938 int cnum = Files[fnum].cnum;
939 invalidate_read_prediction(Files[fnum].fd);
940 Files[fnum].open = False;
941 Connections[cnum].num_files_open--;
942 if(Files[fnum].wbmpx_ptr)
944 free((char *)Files[fnum].wbmpx_ptr);
945 Files[fnum].wbmpx_ptr = NULL;
949 if(Files[fnum].mmap_ptr)
951 munmap(Files[fnum].mmap_ptr,Files[fnum].mmap_size);
952 Files[fnum].mmap_ptr = NULL;
956 if (lp_share_modes(SNUM(cnum)))
957 del_share_mode(fnum);
959 close(Files[fnum].fd);
961 /* NT uses smbclose to start a print - weird */
962 if (Files[fnum].print_file)
965 /* check for magic scripts */
966 check_magic(fnum,cnum);
968 DEBUG(2,("%s %s closed file %s (numopen=%d)\n",
969 timestring(),Connections[cnum].user,Files[fnum].name,
970 Connections[cnum].num_files_open));
973 enum {AFAIL,AREAD,AWRITE,AALL};
975 /*******************************************************************
976 reproduce the share mode access table
977 ********************************************************************/
978 static int access_table(int new_deny,int old_deny,int old_mode,
979 int share_pid,char *fname)
981 if (new_deny == DENY_ALL || old_deny == DENY_ALL) return(AFAIL);
983 if (new_deny == DENY_DOS || old_deny == DENY_DOS) {
984 if (old_deny == new_deny && share_pid == getpid())
987 if (old_mode == 0) return(AREAD);
989 /* the new smbpub.zip spec says that if the file extension is
990 .com, .dll, .exe or .sym then allow the open. I will force
991 it to read-only as this seems sensible although the spec is
992 a little unclear on this. */
993 if ((fname = strrchr(fname,'.'))) {
994 if (strequal(fname,".com") ||
995 strequal(fname,".dll") ||
996 strequal(fname,".exe") ||
997 strequal(fname,".sym"))
1007 if (old_deny==DENY_WRITE && old_mode==0) return(AREAD);
1008 if (old_deny==DENY_READ && old_mode==0) return(AWRITE);
1009 if (old_deny==DENY_NONE && old_mode==0) return(AALL);
1012 if (old_deny==DENY_WRITE && old_mode==1) return(AREAD);
1013 if (old_deny==DENY_READ && old_mode==1) return(AWRITE);
1014 if (old_deny==DENY_NONE && old_mode==1) return(AALL);
1017 if (old_deny==DENY_WRITE) return(AREAD);
1018 if (old_deny==DENY_READ) return(AWRITE);
1019 if (old_deny==DENY_NONE) return(AALL);
1025 /*******************************************************************
1026 check if the share mode on a file allows it to be deleted or unlinked
1027 return True if sharing doesn't prevent the operation
1028 ********************************************************************/
1029 BOOL check_file_sharing(int cnum,char *fname)
1032 int share_mode = get_share_mode_byname(cnum,fname,&pid);
1034 if (!pid || !share_mode) return(True);
1036 if (share_mode == DENY_DOS)
1037 return(pid == getpid());
1039 /* XXXX exactly what share mode combinations should be allowed for
1040 deleting/renaming? */
1044 /****************************************************************************
1046 Helper for open_file_shared.
1047 Truncate a file after checking locking; close file if locked.
1048 **************************************************************************/
1049 static void truncate_unless_locked(int fnum, int cnum)
1051 if (Files[fnum].can_write){
1052 if (is_locked(fnum,cnum,0x3FFFFFFF,0)){
1055 unix_ERR_class = ERRDOS;
1056 unix_ERR_code = ERRlock;
1059 ftruncate(Files[fnum].fd,0);
1064 /****************************************************************************
1065 open a file with a share mode
1066 ****************************************************************************/
1067 void open_file_shared(int fnum,int cnum,char *fname,int share_mode,int ofun,
1068 int mode,int *Access,int *action)
1072 int deny_mode = (share_mode>>4)&7;
1074 BOOL file_existed = file_exist(fname,&sbuf);
1075 BOOL fcbopen = False;
1078 Files[fnum].open = False;
1079 Files[fnum].fd = -1;
1081 /* this is for OS/2 EAs - try and say we don't support them */
1082 if (strstr(fname,".+,;=[].")) {
1083 unix_ERR_class = ERRDOS;
1084 unix_ERR_code = ERROR_EAS_NOT_SUPPORTED;
1088 if ((ofun & 0x3) == 0 && file_existed) {
1095 if ((ofun & 0x3) == 2)
1098 /* note that we ignore the append flag as
1099 append does not mean the same thing under dos and unix */
1101 switch (share_mode&0xF)
1118 if (flags != O_RDONLY && file_existed &&
1119 (!CAN_WRITE(cnum) || IS_DOS_READONLY(dos_mode(cnum,fname,&sbuf)))) {
1127 if (deny_mode > DENY_NONE && deny_mode!=DENY_FCB) {
1128 DEBUG(2,("Invalid deny mode %d on file %s\n",deny_mode,fname));
1133 if (deny_mode == DENY_FCB) deny_mode = DENY_DOS;
1135 if (lp_share_modes(SNUM(cnum))) {
1139 old_share = get_share_mode(cnum,&sbuf,&share_pid);
1142 /* someone else has a share lock on it, check to see
1144 int old_open_mode = old_share&0xF;
1145 int old_deny_mode = (old_share>>4)&7;
1147 if (deny_mode > 4 || old_deny_mode > 4 || old_open_mode > 2) {
1148 DEBUG(2,("Invalid share mode (%d,%d,%d) on file %s\n",
1149 deny_mode,old_deny_mode,old_open_mode,fname));
1151 unix_ERR_class = ERRDOS;
1152 unix_ERR_code = ERRbadshare;
1157 int access_allowed = access_table(deny_mode,old_deny_mode,old_open_mode,
1160 if ((access_allowed == AFAIL) ||
1161 (access_allowed == AREAD && flags == O_WRONLY) ||
1162 (access_allowed == AWRITE && flags == O_RDONLY)) {
1163 DEBUG(2,("Share violation on file (%d,%d,%d,%d,%s) = %d\n",
1164 deny_mode,old_deny_mode,old_open_mode,
1168 unix_ERR_class = ERRDOS;
1169 unix_ERR_code = ERRbadshare;
1173 if (access_allowed == AREAD)
1176 if (access_allowed == AWRITE)
1182 DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o\n",
1183 flags,flags2,mode));
1185 open_file(fnum,cnum,fname,flags|(flags2&~(O_TRUNC)),mode);
1186 if (!Files[fnum].open && flags==O_RDWR && errno!=ENOENT && fcbopen) {
1188 open_file(fnum,cnum,fname,flags,mode);
1191 if (Files[fnum].open) {
1205 Files[fnum].share_mode = (deny_mode<<4) | open_mode;
1206 Files[fnum].share_pending = True;
1209 (*Access) = open_mode;
1213 if (file_existed && !(flags2 & O_TRUNC)) *action = 1;
1214 if (!file_existed) *action = 2;
1215 if (file_existed && (flags2 & O_TRUNC)) *action = 3;
1219 share_mode_pending = True;
1221 if ((flags2&O_TRUNC) && file_existed)
1222 truncate_unless_locked(fnum,cnum);
1228 /*******************************************************************
1229 check for files that we should now set our share modes on
1230 ********************************************************************/
1231 static void check_share_modes(void)
1234 for (i=0;i<MAX_OPEN_FILES;i++)
1235 if(Files[i].open && Files[i].share_pending) {
1236 if (lp_share_modes(SNUM(Files[i].cnum))) {
1238 get_share_mode_by_fnum(Files[i].cnum,i,&pid);
1240 set_share_mode(i,Files[i].share_mode);
1241 Files[i].share_pending = False;
1244 Files[i].share_pending = False;
1250 /****************************************************************************
1251 seek a file. Try to avoid the seek if possible
1252 ****************************************************************************/
1253 int seek_file(int fnum,int pos)
1256 if (Files[fnum].print_file && POSTSCRIPT(Files[fnum].cnum))
1259 Files[fnum].pos = lseek(Files[fnum].fd,pos+offset,SEEK_SET) - offset;
1260 return(Files[fnum].pos);
1263 /****************************************************************************
1265 ****************************************************************************/
1266 int read_file(int fnum,char *data,int pos,int n)
1270 if (!Files[fnum].can_write)
1272 ret = read_predict(Files[fnum].fd,pos,data,NULL,n);
1280 if (Files[fnum].mmap_ptr)
1282 int num = MIN(n,Files[fnum].mmap_size-pos);
1285 memcpy(data,Files[fnum].mmap_ptr+pos,num);
1297 if (seek_file(fnum,pos) != pos)
1299 DEBUG(3,("Failed to seek to %d\n",pos));
1304 readret = read(Files[fnum].fd,data,n);
1305 if (readret > 0) ret += readret;
1312 /****************************************************************************
1314 ****************************************************************************/
1315 int write_file(int fnum,char *data,int n)
1317 if (!Files[fnum].can_write) {
1322 if (!Files[fnum].modified) {
1324 Files[fnum].modified = True;
1325 if (fstat(Files[fnum].fd,&st) == 0) {
1326 int dosmode = dos_mode(Files[fnum].cnum,Files[fnum].name,&st);
1327 if (MAP_ARCHIVE(Files[fnum].cnum) && !IS_DOS_ARCHIVE(dosmode)) {
1328 dos_chmod(Files[fnum].cnum,Files[fnum].name,dosmode | aARCH,&st);
1333 return(write_data(Files[fnum].fd,data,n));
1337 /****************************************************************************
1338 load parameters specific to a connection/service
1339 ****************************************************************************/
1340 BOOL become_service(int cnum,BOOL do_chdir)
1342 extern char magic_char;
1343 static int last_cnum = -1;
1346 if (!OPEN_CNUM(cnum))
1352 Connections[cnum].lastused = smb_last_time;
1357 ChDir(Connections[cnum].connectpath) != 0 &&
1358 ChDir(Connections[cnum].origpath) != 0)
1360 DEBUG(0,("%s chdir (%s) failed cnum=%d\n",timestring(),
1361 Connections[cnum].connectpath,cnum));
1365 if (cnum == last_cnum)
1370 case_default = lp_defaultcase(snum);
1371 case_preserve = lp_preservecase(snum);
1372 short_case_preserve = lp_shortpreservecase(snum);
1373 case_mangle = lp_casemangle(snum);
1374 case_sensitive = lp_casesensitive(snum);
1375 magic_char = lp_magicchar(snum);
1376 use_mangled_map = (*lp_mangled_map(snum) ? True:False);
1381 /****************************************************************************
1382 find a service entry
1383 ****************************************************************************/
1384 int find_service(char *service)
1388 string_sub(service,"\\","/");
1390 iService = lp_servicenumber(service);
1392 /* now handle the special case of a home directory */
1395 char *phome_dir = get_home_dir(service);
1396 DEBUG(3,("checking for home directory %s gave %s\n",service,
1397 phome_dir?phome_dir:"(NULL)"));
1401 if ((iHomeService = lp_servicenumber(HOMES_NAME)) >= 0)
1403 lp_add_home(service,iHomeService,phome_dir);
1404 iService = lp_servicenumber(service);
1409 /* If we still don't have a service, attempt to add it as a printer. */
1412 int iPrinterService;
1414 if ((iPrinterService = lp_servicenumber(PRINTERS_NAME)) >= 0)
1418 DEBUG(3,("checking whether %s is a valid printer name...\n", service));
1420 if ((pszTemp != NULL) && pcap_printername_ok(service, pszTemp))
1422 DEBUG(3,("%s is a valid printer name\n", service));
1423 DEBUG(3,("adding %s as a printer service\n", service));
1424 lp_add_printer(service,iPrinterService);
1425 iService = lp_servicenumber(service);
1427 DEBUG(0,("failed to add %s as a printer service!\n", service));
1430 DEBUG(3,("%s is not a valid printer name\n", service));
1434 /* just possibly it's a default service? */
1437 char *defservice = lp_defaultservice();
1438 if (defservice && *defservice && !strequal(defservice,service)) {
1439 iService = find_service(defservice);
1440 if (iService >= 0) {
1441 string_sub(service,"_","/");
1442 iService = lp_add_service(service,iService);
1448 if (!VALID_SNUM(iService))
1450 DEBUG(0,("Invalid snum %d for %s\n",iService,service));
1455 DEBUG(3,("find_service() failed to find service %s\n", service));
1461 /****************************************************************************
1462 create an error packet from a cached error.
1463 ****************************************************************************/
1464 int cached_error_packet(char *inbuf,char *outbuf,int fnum,int line)
1466 write_bmpx_struct *wbmpx = Files[fnum].wbmpx_ptr;
1468 int32 eclass = wbmpx->wr_errclass;
1469 int32 err = wbmpx->wr_error;
1471 /* We can now delete the auxiliary struct */
1472 free((char *)wbmpx);
1473 Files[fnum].wbmpx_ptr = NULL;
1474 return error_packet(inbuf,outbuf,eclass,err,line);
1483 } unix_smb_errmap[] =
1485 {EPERM,ERRDOS,ERRnoaccess},
1486 {EACCES,ERRDOS,ERRnoaccess},
1487 {ENOENT,ERRDOS,ERRbadfile},
1488 {EIO,ERRHRD,ERRgeneral},
1489 {EBADF,ERRSRV,ERRsrverror},
1490 {EINVAL,ERRSRV,ERRsrverror},
1491 {EEXIST,ERRDOS,ERRfilexists},
1492 {ENFILE,ERRDOS,ERRnofids},
1493 {EMFILE,ERRDOS,ERRnofids},
1494 {ENOSPC,ERRHRD,ERRdiskfull},
1496 {EDQUOT,ERRHRD,ERRdiskfull},
1499 {ENOTEMPTY,ERRDOS,ERRnoaccess},
1502 {EXDEV,ERRDOS,ERRdiffdevice},
1504 {EROFS,ERRHRD,ERRnowrite},
1509 /****************************************************************************
1510 create an error packet from errno
1511 ****************************************************************************/
1512 int unix_error_packet(char *inbuf,char *outbuf,int def_class,uint32 def_code,int line)
1514 int eclass=def_class;
1518 if (unix_ERR_class != SUCCESS)
1520 eclass = unix_ERR_class;
1521 ecode = unix_ERR_code;
1522 unix_ERR_class = SUCCESS;
1527 while (unix_smb_errmap[i].smbclass != 0)
1529 if (unix_smb_errmap[i].unixerror == errno)
1531 eclass = unix_smb_errmap[i].smbclass;
1532 ecode = unix_smb_errmap[i].smbcode;
1539 return(error_packet(inbuf,outbuf,eclass,ecode,line));
1543 /****************************************************************************
1544 create an error packet. Normally called using the ERROR() macro
1545 ****************************************************************************/
1546 int error_packet(char *inbuf,char *outbuf,int error_class,uint32 error_code,int line)
1548 int outsize = set_message(outbuf,0,0,True);
1550 cmd = CVAL(inbuf,smb_com);
1552 CVAL(outbuf,smb_rcls) = error_class;
1553 SSVAL(outbuf,smb_err,error_code);
1555 DEBUG(3,("%s error packet at line %d cmd=%d (%s) eclass=%d ecode=%d\n",
1558 (int)CVAL(inbuf,smb_com),
1559 smb_fn_name(CVAL(inbuf,smb_com)),
1564 DEBUG(3,("error string = %s\n",strerror(errno)));
1570 #ifndef SIGCLD_IGNORE
1571 /****************************************************************************
1572 this prevents zombie child processes
1573 ****************************************************************************/
1574 static int sig_cld()
1576 static int depth = 0;
1579 DEBUG(0,("ERROR: Recursion in sig_cld? Perhaps you need `#define USE_WAITPID'?\n"));
1585 BlockSignals(True,SIGCLD);
1586 DEBUG(5,("got SIGCLD\n"));
1589 while (waitpid((pid_t)-1,(int *)NULL, WNOHANG) > 0);
1593 /* Stevens, Adv. Unix Prog. says that on system V you must call
1594 wait before reinstalling the signal handler, because the kernel
1595 calls the handler from within the signal-call when there is a
1596 child that has exited. This would lead to an infinite recursion
1597 if done vice versa. */
1599 #ifndef DONT_REINSTALL_SIG
1600 #ifdef SIGCLD_IGNORE
1601 signal(SIGCLD, SIG_IGN);
1603 signal(SIGCLD, SIGNAL_CAST sig_cld);
1608 while (wait3(WAIT3_CAST1 NULL, WNOHANG, WAIT3_CAST2 NULL) > 0);
1611 BlockSignals(False,SIGCLD);
1616 /****************************************************************************
1617 this is called when the client exits abruptly
1618 **************************************************************************/
1619 static int sig_pipe()
1621 extern int password_client;
1622 BlockSignals(True,SIGPIPE);
1624 if (password_client != -1) {
1625 DEBUG(3,("lost connection to password server\n"));
1626 close(password_client);
1627 password_client = -1;
1628 #ifndef DONT_REINSTALL_SIG
1629 signal(SIGPIPE, SIGNAL_CAST sig_pipe);
1631 BlockSignals(False,SIGPIPE);
1635 exit_server("Got sigpipe\n");
1639 /****************************************************************************
1640 open the socket communication
1641 ****************************************************************************/
1642 static BOOL open_sockets(BOOL is_daemon,int port)
1649 struct sockaddr addr;
1650 int in_addrlen = sizeof(addr);
1653 #ifdef SIGCLD_IGNORE
1654 signal(SIGCLD, SIG_IGN);
1656 signal(SIGCLD, SIGNAL_CAST sig_cld);
1659 /* open an incoming socket */
1660 s = open_socket_in(SOCK_STREAM, port, 0,interpret_addr(lp_socket_address()));
1664 /* ready to listen */
1665 if (listen(s, 5) == -1)
1667 DEBUG(0,("listen: %s",strerror(errno)));
1672 /* now accept incoming connections - forking a new process
1673 for each incoming connection */
1674 DEBUG(2,("waiting for a connection\n"));
1677 Client = accept(s,&addr,&in_addrlen);
1679 if (Client == -1 && errno == EINTR)
1684 DEBUG(0,("accept: %s",strerror(errno)));
1688 #ifdef NO_FORK_DEBUG
1689 #ifndef NO_SIGNAL_TEST
1690 signal(SIGPIPE, SIGNAL_CAST sig_pipe);
1691 signal(SIGCLD, SIGNAL_CAST SIG_DFL);
1695 if (Client != -1 && fork()==0)
1697 #ifndef NO_SIGNAL_TEST
1698 signal(SIGPIPE, SIGNAL_CAST sig_pipe);
1699 signal(SIGCLD, SIGNAL_CAST SIG_DFL);
1701 /* close the listening socket */
1704 /* close our standard file descriptors */
1707 set_socket_options(Client,"SO_KEEPALIVE");
1708 set_socket_options(Client,user_socket_options);
1712 close(Client); /* The parent doesn't need this socket */
1718 /* We will abort gracefully when the client or remote system
1720 #ifndef NO_SIGNAL_TEST
1721 signal(SIGPIPE, SIGNAL_CAST sig_pipe);
1725 /* close our standard file descriptors */
1728 set_socket_options(Client,"SO_KEEPALIVE");
1729 set_socket_options(Client,user_socket_options);
1736 /****************************************************************************
1737 check if a snum is in use
1738 ****************************************************************************/
1739 BOOL snum_used(int snum)
1742 for (i=0;i<MAX_CONNECTIONS;i++)
1743 if (OPEN_CNUM(i) && (SNUM(i) == snum))
1748 /****************************************************************************
1749 reload the services file
1750 **************************************************************************/
1751 BOOL reload_services(BOOL test)
1758 strcpy(fname,lp_configfile());
1759 if (file_exist(fname,NULL) && !strcsequal(fname,servicesf))
1761 strcpy(servicesf,fname);
1768 if (test && !lp_file_list_changed())
1771 lp_killunused(snum_used);
1773 ret = lp_load(servicesf,False);
1775 /* perhaps the config filename is now set */
1777 reload_services(True);
1786 set_socket_options(Client,"SO_KEEPALIVE");
1787 set_socket_options(Client,user_socket_options);
1791 create_mangled_stack(lp_mangledstack());
1793 /* this forces service parameters to be flushed */
1794 become_service(-1,True);
1801 /****************************************************************************
1802 this prevents zombie child processes
1803 ****************************************************************************/
1804 static int sig_hup()
1806 BlockSignals(True,SIGHUP);
1807 DEBUG(0,("Got SIGHUP\n"));
1808 reload_services(False);
1809 #ifndef DONT_REINSTALL_SIG
1810 signal(SIGHUP,SIGNAL_CAST sig_hup);
1812 BlockSignals(False,SIGHUP);
1816 /****************************************************************************
1817 Setup the groups a user belongs to.
1818 ****************************************************************************/
1819 int setup_groups(char *user, int uid, int gid, int *p_ngroups,
1820 int **p_igroups, gid_t **p_groups)
1822 if (-1 == initgroups(user,gid))
1826 DEBUG(0,("Unable to initgroups!\n"));
1827 if (gid < 0 || gid > 16000 || uid < 0 || uid > 16000)
1828 DEBUG(0,("This is probably a problem with the account %s\n",user));
1836 ngroups = getgroups(0,&grp);
1839 igroups = (int *)malloc(sizeof(int)*ngroups);
1840 for (i=0;i<ngroups;i++)
1841 igroups[i] = 0x42424242;
1842 ngroups = getgroups(ngroups,(gid_t *)igroups);
1844 if (igroups[0] == 0x42424242)
1847 *p_ngroups = ngroups;
1849 /* The following bit of code is very strange. It is due to the
1850 fact that some OSes use int* and some use gid_t* for
1851 getgroups, and some (like SunOS) use both, one in prototypes,
1852 and one in man pages and the actual code. Thus we detect it
1853 dynamically using some very ugly code */
1856 /* does getgroups return ints or gid_t ?? */
1857 static BOOL groups_use_ints = True;
1859 if (groups_use_ints &&
1861 SVAL(igroups,2) == 0x4242)
1862 groups_use_ints = False;
1864 for (i=0;groups_use_ints && i<ngroups;i++)
1865 if (igroups[i] == 0x42424242)
1866 groups_use_ints = False;
1868 if (groups_use_ints)
1870 *p_igroups = igroups;
1871 *p_groups = (gid_t *)igroups;
1875 gid_t *groups = (gid_t *)igroups;
1876 igroups = (int *)malloc(sizeof(int)*ngroups);
1877 for (i=0;i<ngroups;i++)
1878 igroups[i] = groups[i];
1879 *p_igroups = igroups;
1880 *p_groups = (gid_t *)groups;
1883 DEBUG(3,("%s is in %d groups\n",user,ngroups));
1884 for (i=0;i<ngroups;i++)
1885 DEBUG(3,("%d ",igroups[i]));
1891 /****************************************************************************
1892 make a connection to a service
1893 ****************************************************************************/
1894 int make_connection(char *service,char *user,char *password, int pwlen, char *dev,int vuid)
1898 struct passwd *pass = NULL;
1899 connection_struct *pcon;
1902 static BOOL first_connection = True;
1906 snum = find_service(service);
1909 if (strequal(service,"IPC$"))
1911 DEBUG(3,("%s refusing IPC connection\n",timestring()));
1915 DEBUG(0,("%s couldn't find service %s\n",timestring(),service));
1919 if (strequal(service,HOMES_NAME))
1921 if (*user && Get_Pwnam(user,True))
1922 return(make_connection(user,user,password,pwlen,dev,vuid));
1924 if (validated_username(vuid))
1926 strcpy(user,validated_username(vuid));
1927 return(make_connection(user,user,password,pwlen,dev,vuid));
1931 if (!lp_snum_ok(snum) || !check_access(snum)) {
1935 /* you can only connect to the IPC$ service as an ipc device */
1936 if (strequal(service,"IPC$"))
1939 if (*dev == '?' || !*dev)
1941 if (lp_print_ok(snum))
1942 strcpy(dev,"LPT1:");
1947 /* if the request is as a printer and you can't print then refuse */
1949 if (!lp_print_ok(snum) && (strncmp(dev,"LPT",3) == 0)) {
1950 DEBUG(1,("Attempt to connect to non-printer as a printer\n"));
1954 /* lowercase the user name */
1957 /* add it as a possible user name */
1958 add_session_user(service);
1960 /* shall we let them in? */
1961 if (!authorise_login(snum,user,password,pwlen,&guest,&force,vuid))
1963 DEBUG(2,("%s invalid username/password for %s\n",timestring(),service));
1967 cnum = find_free_connection(str_checksum(service) + str_checksum(user));
1970 DEBUG(0,("%s couldn't find free connection\n",timestring()));
1974 pcon = &Connections[cnum];
1975 bzero((char *)pcon,sizeof(*pcon));
1977 /* find out some info about the user */
1978 pass = Get_Pwnam(user,True);
1982 DEBUG(0,("%s couldn't find account %s\n",timestring(),user));
1986 pcon->read_only = lp_readonly(snum);
1990 StrnCpy(list,lp_readlist(snum),sizeof(pstring)-1);
1991 string_sub(list,"%S",service);
1993 if (user_in_list(user,list))
1994 pcon->read_only = True;
1996 StrnCpy(list,lp_writelist(snum),sizeof(pstring)-1);
1997 string_sub(list,"%S",service);
1999 if (user_in_list(user,list))
2000 pcon->read_only = False;
2003 /* admin user check */
2004 if (user_in_list(user,lp_admin_users(snum)) &&
2007 pcon->admin_user = True;
2008 DEBUG(0,("%s logged in as admin user (root privileges)\n",user));
2011 pcon->admin_user = False;
2013 pcon->force_user = force;
2014 pcon->uid = pass->pw_uid;
2015 pcon->gid = pass->pw_gid;
2016 pcon->num_files_open = 0;
2017 pcon->lastused = time(NULL);
2018 pcon->service = snum;
2020 pcon->printer = (strncmp(dev,"LPT",3) == 0);
2021 pcon->ipc = (strncmp(dev,"IPC",3) == 0);
2022 pcon->dirptr = NULL;
2023 string_set(&pcon->dirpath,"");
2024 string_set(&pcon->user,user);
2027 if (*lp_force_group(snum))
2029 struct group *gptr = (struct group *)getgrnam(lp_force_group(snum));
2032 pcon->gid = gptr->gr_gid;
2033 DEBUG(3,("Forced group %s\n",lp_force_group(snum)));
2036 DEBUG(1,("Couldn't find group %s\n",lp_force_group(snum)));
2040 if (*lp_force_user(snum))
2042 struct passwd *pass2;
2044 strcpy(fuser,lp_force_user(snum));
2045 pass2 = (struct passwd *)Get_Pwnam(fuser,True);
2048 pcon->uid = pass2->pw_uid;
2049 string_set(&pcon->user,fuser);
2051 pcon->force_user = True;
2052 DEBUG(3,("Forced user %s\n",fuser));
2055 DEBUG(1,("Couldn't find user %s\n",fuser));
2060 strcpy(s,lp_pathname(snum));
2061 standard_sub(cnum,s);
2062 string_set(&pcon->connectpath,s);
2063 DEBUG(3,("Connect path is %s\n",s));
2066 /* groups stuff added by ih */
2068 pcon->groups = NULL;
2072 /* Find all the groups this uid is in and store them. Used by become_user() */
2073 setup_groups(pcon->user,pcon->uid,pcon->gid,&pcon->ngroups,&pcon->igroups,&pcon->groups);
2075 /* check number of connections */
2076 if (!claim_connection(cnum,
2077 lp_servicename(SNUM(cnum)),
2078 lp_max_connections(SNUM(cnum)),False))
2080 DEBUG(1,("too many connections - rejected\n"));
2084 if (lp_status(SNUM(cnum)))
2085 claim_connection(cnum,"STATUS.",MAXSTATUS,first_connection);
2087 first_connection = False;
2092 /* execute any "root preexec = " line */
2093 if (*lp_rootpreexec(SNUM(cnum)))
2096 strcpy(cmd,lp_rootpreexec(SNUM(cnum)));
2097 standard_sub(cnum,cmd);
2098 DEBUG(5,("cmd=%s\n",cmd));
2102 if (!become_user(cnum,pcon->uid))
2104 DEBUG(0,("Can't become connected user!\n"));
2106 if (!IS_IPC(cnum)) {
2107 yield_connection(cnum,
2108 lp_servicename(SNUM(cnum)),
2109 lp_max_connections(SNUM(cnum)));
2110 if (lp_status(SNUM(cnum))) yield_connection(cnum,"STATUS.",MAXSTATUS);
2115 if (ChDir(pcon->connectpath) != 0)
2117 DEBUG(0,("Can't change directory to %s (%s)\n",
2118 pcon->connectpath,strerror(errno)));
2121 if (!IS_IPC(cnum)) {
2122 yield_connection(cnum,
2123 lp_servicename(SNUM(cnum)),
2124 lp_max_connections(SNUM(cnum)));
2125 if (lp_status(SNUM(cnum))) yield_connection(cnum,"STATUS.",MAXSTATUS);
2130 string_set(&pcon->origpath,pcon->connectpath);
2132 #if SOFTLINK_OPTIMISATION
2133 /* resolve any soft links early */
2136 strcpy(s,pcon->connectpath);
2138 string_set(&pcon->connectpath,s);
2139 ChDir(pcon->connectpath);
2143 num_connections_open++;
2144 add_session_user(user);
2146 /* execute any "preexec = " line */
2147 if (*lp_preexec(SNUM(cnum)))
2150 strcpy(cmd,lp_preexec(SNUM(cnum)));
2151 standard_sub(cnum,cmd);
2155 /* we've finished with the sensitive stuff */
2159 extern struct from_host Client_info;
2160 DEBUG(IS_IPC(cnum)?3:1,("%s %s (%s) connect to service %s as user %s (uid=%d,gid=%d) (pid %d)\n",
2162 Client_info.name,Client_info.addr,
2163 lp_servicename(SNUM(cnum)),user,
2173 /****************************************************************************
2174 find first available file slot
2175 ****************************************************************************/
2176 int find_free_file(void )
2179 /* we start at 1 here for an obscure reason I can't now remember,
2180 but I think is important :-) */
2181 for (i=1;i<MAX_OPEN_FILES;i++)
2184 DEBUG(1,("ERROR! Out of file structures - perhaps increase MAX_OPEN_FILES?\n"));
2188 /****************************************************************************
2189 find first available connection slot, starting from a random position.
2190 The randomisation stops problems with the server dieing and clients
2191 thinking the server is still available.
2192 ****************************************************************************/
2193 static int find_free_connection(int hash )
2197 hash = (hash % (MAX_CONNECTIONS-2))+1;
2201 for (i=hash+1;i!=hash;)
2203 if (!Connections[i].open && Connections[i].used == used)
2205 DEBUG(3,("found free connection number %d\n",i));
2209 if (i == MAX_CONNECTIONS)
2219 DEBUG(1,("ERROR! Out of connection structures\n"));
2224 /****************************************************************************
2225 reply for the core protocol
2226 ****************************************************************************/
2227 int reply_corep(char *outbuf)
2229 int outsize = set_message(outbuf,1,0,True);
2231 Protocol = PROTOCOL_CORE;
2237 /****************************************************************************
2238 reply for the coreplus protocol
2239 ****************************************************************************/
2240 int reply_coreplus(char *outbuf)
2242 int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
2243 int outsize = set_message(outbuf,13,0,True);
2244 SSVAL(outbuf,smb_vwv5,raw); /* tell redirector we support
2245 readbraw and writebraw (possibly) */
2246 CVAL(outbuf,smb_flg) = 0x81; /* Reply, SMBlockread, SMBwritelock supported */
2247 SSVAL(outbuf,smb_vwv1,0x1); /* user level security, don't encrypt */
2249 Protocol = PROTOCOL_COREPLUS;
2255 /****************************************************************************
2256 reply for the lanman 1.0 protocol
2257 ****************************************************************************/
2258 int reply_lanman1(char *outbuf)
2260 int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
2262 BOOL doencrypt = SMBENCRYPT();
2263 time_t t = time(NULL);
2265 if (lp_security()>=SEC_USER) secword |= 1;
2266 if (doencrypt) secword |= 2;
2268 set_message(outbuf,13,doencrypt?8:0,True);
2269 SSVAL(outbuf,smb_vwv1,secword);
2271 /* Create a token value and add it to the outgoing packet. */
2273 generate_next_challenge(smb_buf(outbuf));
2276 Protocol = PROTOCOL_LANMAN1;
2278 if (lp_security() == SEC_SERVER && server_cryptkey(outbuf)) {
2279 DEBUG(3,("using password server validation\n"));
2281 if (doencrypt) set_challenge(smb_buf(outbuf));
2285 CVAL(outbuf,smb_flg) = 0x81; /* Reply, SMBlockread, SMBwritelock supported */
2286 SSVAL(outbuf,smb_vwv2,maxxmit);
2287 SSVAL(outbuf,smb_vwv3,lp_maxmux()); /* maxmux */
2288 SSVAL(outbuf,smb_vwv4,1);
2289 SSVAL(outbuf,smb_vwv5,raw); /* tell redirector we support
2290 readbraw writebraw (possibly) */
2291 SIVAL(outbuf,smb_vwv6,getpid());
2292 SSVAL(outbuf,smb_vwv10, TimeDiff(t)/60);
2294 put_dos_date(outbuf,smb_vwv8,t);
2296 return (smb_len(outbuf)+4);
2300 /****************************************************************************
2301 reply for the lanman 2.0 protocol
2302 ****************************************************************************/
2303 int reply_lanman2(char *outbuf)
2305 int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
2307 BOOL doencrypt = SMBENCRYPT();
2308 time_t t = time(NULL);
2310 if (lp_security()>=SEC_USER) secword |= 1;
2311 if (doencrypt) secword |= 2;
2313 set_message(outbuf,13,doencrypt?8:0,True);
2314 SSVAL(outbuf,smb_vwv1,secword);
2316 /* Create a token value and add it to the outgoing packet. */
2318 generate_next_challenge(smb_buf(outbuf));
2321 SIVAL(outbuf,smb_vwv6,getpid());
2323 Protocol = PROTOCOL_LANMAN2;
2325 if (lp_security() == SEC_SERVER && server_cryptkey(outbuf)) {
2326 DEBUG(3,("using password server validation\n"));
2328 if (doencrypt) set_challenge(smb_buf(outbuf));
2332 CVAL(outbuf,smb_flg) = 0x81; /* Reply, SMBlockread, SMBwritelock supported */
2333 SSVAL(outbuf,smb_vwv2,maxxmit);
2334 SSVAL(outbuf,smb_vwv3,lp_maxmux());
2335 SSVAL(outbuf,smb_vwv4,1);
2336 SSVAL(outbuf,smb_vwv5,raw); /* readbraw and/or writebraw */
2337 SSVAL(outbuf,smb_vwv10, TimeDiff(t)/60);
2338 put_dos_date(outbuf,smb_vwv8,t);
2340 return (smb_len(outbuf)+4);
2343 /****************************************************************************
2344 reply for the nt protocol
2345 ****************************************************************************/
2346 int reply_nt1(char *outbuf)
2348 int capabilities=0x300; /* has dual names + lock_and_read */
2350 BOOL doencrypt = SMBENCRYPT();
2351 time_t t = time(NULL);
2353 if (lp_security()>=SEC_USER) secword |= 1;
2354 if (doencrypt) secword |= 2;
2356 set_message(outbuf,17,doencrypt?8:0,True);
2357 CVAL(outbuf,smb_vwv1) = secword;
2359 /* Create a token value and add it to the outgoing packet. */
2361 generate_next_challenge(smb_buf(outbuf));
2362 /* Tell the nt machine how long the challenge is. */
2363 SSVALS(outbuf,smb_vwv16+1,8);
2367 SIVAL(outbuf,smb_vwv7+1,getpid()); /* session key */
2369 Protocol = PROTOCOL_NT1;
2371 if (lp_security() == SEC_SERVER && server_cryptkey(outbuf)) {
2372 DEBUG(3,("using password server validation\n"));
2374 if (doencrypt) set_challenge(smb_buf(outbuf));
2378 if (lp_readraw() && lp_writeraw())
2381 SSVAL(outbuf,smb_vwv1+1,lp_maxmux()); /* maxmpx */
2382 SSVAL(outbuf,smb_vwv2+1,1); /* num vcs */
2383 SIVAL(outbuf,smb_vwv3+1,0xFFFF); /* max buffer */
2384 SIVAL(outbuf,smb_vwv5+1,0xFFFF); /* raw size */
2385 SIVAL(outbuf,smb_vwv9+1,capabilities); /* capabilities */
2386 put_long_date(outbuf+smb_vwv11+1,t);
2387 SSVALS(outbuf,smb_vwv15+1,TimeDiff(t)/60);
2389 return (smb_len(outbuf)+4);
2393 /* these are the protocol lists used for auto architecture detection:
2396 protocol [PC NETWORK PROGRAM 1.0]
2397 protocol [XENIX CORE]
2398 protocol [MICROSOFT NETWORKS 1.03]
2399 protocol [LANMAN1.0]
2400 protocol [Windows for Workgroups 3.1a]
2401 protocol [LM1.2X002]
2402 protocol [LANMAN2.1]
2403 protocol [NT LM 0.12]
2406 protocol [PC NETWORK PROGRAM 1.0]
2407 protocol [XENIX CORE]
2408 protocol [MICROSOFT NETWORKS 1.03]
2409 protocol [LANMAN1.0]
2410 protocol [Windows for Workgroups 3.1a]
2411 protocol [LM1.2X002]
2412 protocol [LANMAN2.1]
2413 protocol [NT LM 0.12]
2416 protocol [PC NETWORK PROGRAM 1.0]
2417 protocol [XENIX CORE]
2418 protocol [LANMAN1.0]
2419 protocol [LM1.2X002]
2420 protocol [LANMAN2.1]
2424 * Modified to recognize the architecture of the remote machine better.
2426 * This appears to be the matrix of which protocol is used by which
2428 Protocol WfWg Win95 WinNT OS/2
2429 PC NETWORK PROGRAM 1.0 1 1 1 1
2431 MICROSOFT NETWORKS 3.0 2 2
2433 MICROSOFT NETWORKS 1.03 3
2436 Windows for Workgroups 3.1a 5 5 5
2441 * tim@fsg.com 09/29/95
2444 #define ARCH_WFWG 0x3 /* This is a fudge because WfWg is like Win95 */
2445 #define ARCH_WIN95 0x2
2446 #define ARCH_OS2 0xC /* Again OS/2 is like NT */
2447 #define ARCH_WINNT 0x8
2448 #define ARCH_SAMBA 0x10
2450 #define ARCH_ALL 0x1F
2452 /* List of supported protocols, most desired first */
2456 int (*proto_reply_fn)(char *);
2458 } supported_protocols[] = {
2459 {"NT LANMAN 1.0", "NT1", reply_nt1, PROTOCOL_NT1},
2460 {"NT LM 0.12", "NT1", reply_nt1, PROTOCOL_NT1},
2461 {"LM1.2X002", "LANMAN2", reply_lanman2, PROTOCOL_LANMAN2},
2462 {"Samba", "LANMAN2", reply_lanman2, PROTOCOL_LANMAN2},
2463 {"DOS LM1.2X002", "LANMAN2", reply_lanman2, PROTOCOL_LANMAN2},
2464 {"LANMAN1.0", "LANMAN1", reply_lanman1, PROTOCOL_LANMAN1},
2465 {"MICROSOFT NETWORKS 3.0", "LANMAN1", reply_lanman1, PROTOCOL_LANMAN1},
2466 {"MICROSOFT NETWORKS 1.03", "COREPLUS", reply_coreplus, PROTOCOL_COREPLUS},
2467 {"PC NETWORK PROGRAM 1.0", "CORE", reply_corep, PROTOCOL_CORE},
2472 /****************************************************************************
2474 ****************************************************************************/
2475 static int reply_negprot(char *inbuf,char *outbuf)
2477 extern fstring remote_arch;
2478 int outsize = set_message(outbuf,1,0,True);
2483 int bcc = SVAL(smb_buf(inbuf),-2);
2484 int arch = ARCH_ALL;
2486 p = smb_buf(inbuf)+1;
2487 while (p < (smb_buf(inbuf) + bcc))
2490 DEBUG(3,("Requested protocol [%s]\n",p));
2491 if (strcsequal(p,"Windows for Workgroups 3.1a"))
2492 arch &= ( ARCH_WFWG | ARCH_WIN95 | ARCH_WINNT );
2493 else if (strcsequal(p,"DOS LM1.2X002"))
2494 arch &= ( ARCH_WFWG | ARCH_WIN95 );
2495 else if (strcsequal(p,"DOS LANMAN2.1"))
2496 arch &= ( ARCH_WFWG | ARCH_WIN95 );
2497 else if (strcsequal(p,"NT LM 0.12"))
2498 arch &= ( ARCH_WIN95 | ARCH_WINNT );
2499 else if (strcsequal(p,"LANMAN2.1"))
2500 arch &= ( ARCH_WINNT | ARCH_OS2 );
2501 else if (strcsequal(p,"LM1.2X002"))
2502 arch &= ( ARCH_WINNT | ARCH_OS2 );
2503 else if (strcsequal(p,"MICROSOFT NETWORKS 1.03"))
2505 else if (strcsequal(p,"XENIX CORE"))
2506 arch &= ( ARCH_WINNT | ARCH_OS2 );
2507 else if (strcsequal(p,"Samba")) {
2517 strcpy(remote_arch,"Samba");
2520 strcpy(remote_arch,"WfWg");
2523 strcpy(remote_arch,"Win95");
2526 strcpy(remote_arch,"WinNT");
2529 strcpy(remote_arch,"OS2");
2532 strcpy(remote_arch,"UNKNOWN");
2536 /* possibly reload - change of architecture */
2537 reload_services(True);
2539 /* a special case to stop password server loops */
2540 if (Index == 1 && strequal(remote_machine,myhostname) &&
2541 lp_security()==SEC_SERVER)
2542 exit_server("Password server loop!");
2544 /* Check for protocols, most desirable first */
2545 for (protocol = 0; supported_protocols[protocol].proto_name; protocol++)
2547 p = smb_buf(inbuf)+1;
2549 if (lp_maxprotocol() >= supported_protocols[protocol].protocol_level)
2550 while (p < (smb_buf(inbuf) + bcc))
2552 if (strequal(p,supported_protocols[protocol].proto_name))
2561 SSVAL(outbuf,smb_vwv0,choice);
2563 extern fstring remote_proto;
2564 strcpy(remote_proto,supported_protocols[protocol].short_name);
2565 reload_services(True);
2566 outsize = supported_protocols[protocol].proto_reply_fn(outbuf);
2567 DEBUG(3,("Selected protocol %s\n",supported_protocols[protocol].proto_name));
2570 DEBUG(0,("No protocol supported !\n"));
2572 SSVAL(outbuf,smb_vwv0,choice);
2574 DEBUG(5,("%s negprot index=%d\n",timestring(),choice));
2580 /****************************************************************************
2581 close all open files for a connection
2582 ****************************************************************************/
2583 static void close_open_files(int cnum)
2586 for (i=0;i<MAX_OPEN_FILES;i++)
2587 if( Files[i].cnum == cnum && Files[i].open) {
2594 /****************************************************************************
2596 ****************************************************************************/
2597 void close_cnum(int cnum, int uid)
2599 extern struct from_host Client_info;
2601 DirCacheFlush(SNUM(cnum));
2605 if (!OPEN_CNUM(cnum))
2607 DEBUG(0,("Can't close cnum %d\n",cnum));
2611 DEBUG(IS_IPC(cnum)?3:1,("%s %s (%s) closed connection to service %s\n",
2613 Client_info.name,Client_info.addr,
2614 lp_servicename(SNUM(cnum))));
2616 yield_connection(cnum,
2617 lp_servicename(SNUM(cnum)),
2618 lp_max_connections(SNUM(cnum)));
2620 if (lp_status(SNUM(cnum)))
2621 yield_connection(cnum,"STATUS.",MAXSTATUS);
2623 close_open_files(cnum);
2624 dptr_closecnum(cnum);
2626 /* execute any "postexec = " line */
2627 if (*lp_postexec(SNUM(cnum)) && become_user(cnum,uid))
2630 strcpy(cmd,lp_postexec(SNUM(cnum)));
2631 standard_sub(cnum,cmd);
2637 /* execute any "root postexec = " line */
2638 if (*lp_rootpostexec(SNUM(cnum)))
2641 strcpy(cmd,lp_rootpostexec(SNUM(cnum)));
2642 standard_sub(cnum,cmd);
2646 Connections[cnum].open = False;
2647 num_connections_open--;
2648 if (Connections[cnum].ngroups && Connections[cnum].groups)
2650 if (Connections[cnum].igroups != (int *)Connections[cnum].groups)
2651 free(Connections[cnum].groups);
2652 free(Connections[cnum].igroups);
2653 Connections[cnum].groups = NULL;
2654 Connections[cnum].igroups = NULL;
2655 Connections[cnum].ngroups = 0;
2658 string_set(&Connections[cnum].user,"");
2659 string_set(&Connections[cnum].dirpath,"");
2660 string_set(&Connections[cnum].connectpath,"");
2664 /****************************************************************************
2665 simple routines to do connection counting
2666 ****************************************************************************/
2667 BOOL yield_connection(int cnum,char *name,int max_connections)
2669 struct connect_record crec;
2672 int mypid = getpid();
2675 DEBUG(3,("Yielding connection to %d %s\n",cnum,name));
2677 if (max_connections <= 0)
2680 bzero(&crec,sizeof(crec));
2682 strcpy(fname,lp_lockdir());
2683 standard_sub(cnum,fname);
2684 trim_string(fname,"","/");
2688 strcat(fname,".LCK");
2690 f = fopen(fname,"r+");
2693 DEBUG(2,("Coudn't open lock file %s (%s)\n",fname,strerror(errno)));
2697 fseek(f,0,SEEK_SET);
2699 /* find a free spot */
2700 for (i=0;i<max_connections;i++)
2702 if (fread(&crec,sizeof(crec),1,f) != 1)
2704 DEBUG(2,("Entry not found in lock file %s\n",fname));
2708 if (crec.pid == mypid && crec.cnum == cnum)
2712 if (crec.pid != mypid || crec.cnum != cnum)
2715 DEBUG(2,("Entry not found in lock file %s\n",fname));
2719 bzero((void *)&crec,sizeof(crec));
2721 /* remove our mark */
2722 if (fseek(f,i*sizeof(crec),SEEK_SET) != 0 ||
2723 fwrite(&crec,sizeof(crec),1,f) != 1)
2725 DEBUG(2,("Couldn't update lock file %s (%s)\n",fname,strerror(errno)));
2730 DEBUG(3,("Yield successful\n"));
2737 /****************************************************************************
2738 simple routines to do connection counting
2739 ****************************************************************************/
2740 BOOL claim_connection(int cnum,char *name,int max_connections,BOOL Clear)
2742 struct connect_record crec;
2745 int snum = SNUM(cnum);
2749 if (max_connections <= 0)
2752 DEBUG(5,("trying claim %s %s %d\n",lp_lockdir(),name,max_connections));
2754 strcpy(fname,lp_lockdir());
2755 standard_sub(cnum,fname);
2756 trim_string(fname,"","/");
2758 if (!directory_exist(fname,NULL))
2763 strcat(fname,".LCK");
2765 if (!file_exist(fname,NULL))
2767 f = fopen(fname,"w");
2771 total_recs = file_size(fname) / sizeof(crec);
2773 f = fopen(fname,"r+");
2777 DEBUG(1,("couldn't open lock file %s\n",fname));
2781 /* find a free spot */
2782 for (i=0;i<max_connections;i++)
2785 if (i>=total_recs ||
2786 fseek(f,i*sizeof(crec),SEEK_SET) != 0 ||
2787 fread(&crec,sizeof(crec),1,f) != 1)
2789 if (foundi < 0) foundi = i;
2793 if (Clear && crec.pid && !process_exists(crec.pid))
2795 fseek(f,i*sizeof(crec),SEEK_SET);
2796 bzero((void *)&crec,sizeof(crec));
2797 fwrite(&crec,sizeof(crec),1,f);
2798 if (foundi < 0) foundi = i;
2801 if (foundi < 0 && (!crec.pid || !process_exists(crec.pid)))
2810 DEBUG(3,("no free locks in %s\n",fname));
2815 /* fill in the crec */
2816 bzero((void *)&crec,sizeof(crec));
2817 crec.magic = 0x280267;
2818 crec.pid = getpid();
2820 crec.uid = Connections[cnum].uid;
2821 crec.gid = Connections[cnum].gid;
2822 StrnCpy(crec.name,lp_servicename(snum),sizeof(crec.name)-1);
2823 crec.start = time(NULL);
2826 extern struct from_host Client_info;
2827 StrnCpy(crec.machine,Client_info.name,sizeof(crec.machine)-1);
2828 StrnCpy(crec.addr,Client_info.addr,sizeof(crec.addr)-1);
2832 if (fseek(f,foundi*sizeof(crec),SEEK_SET) != 0 ||
2833 fwrite(&crec,sizeof(crec),1,f) != 1)
2844 /*******************************************************************
2845 prepare to dump a core file - carefully!
2846 ********************************************************************/
2847 static BOOL dump_core(void)
2851 strcpy(dname,debugf);
2852 if ((p=strrchr(dname,'/'))) *p=0;
2853 strcat(dname,"/corefiles");
2855 sys_chown(dname,getuid(),getgid());
2857 if (chdir(dname)) return(False);
2860 #ifndef NO_GETRLIMIT
2864 getrlimit(RLIMIT_CORE, &rlp);
2865 rlp.rlim_cur = MAX(4*1024*1024,rlp.rlim_cur);
2866 setrlimit(RLIMIT_CORE, &rlp);
2867 getrlimit(RLIMIT_CORE, &rlp);
2868 DEBUG(3,("Core limits now %d %d\n",rlp.rlim_cur,rlp.rlim_max));
2874 DEBUG(0,("Dumping core in %s\n",dname));
2879 /****************************************************************************
2881 ****************************************************************************/
2882 void exit_server(char *reason)
2884 static int firsttime=1;
2887 if (!firsttime) exit(0);
2891 DEBUG(2,("Closing connections\n"));
2892 for (i=0;i<MAX_CONNECTIONS;i++)
2893 if (Connections[i].open)
2896 if (dcelogin_atmost_once)
2900 int oldlevel = DEBUGLEVEL;
2902 DEBUG(0,("Last message was %s\n",smb_fn_name(last_message)));
2904 show_msg(last_inbuf);
2905 DEBUGLEVEL = oldlevel;
2906 DEBUG(0,("===============================================================\n"));
2908 if (dump_core()) return;
2911 DEBUG(3,("%s Server exit (%s)\n",timestring(),reason?reason:""));
2915 /****************************************************************************
2916 do some standard substitutions in a string
2917 ****************************************************************************/
2918 void standard_sub(int cnum,char *s)
2920 if (!strchr(s,'%')) return;
2922 if (VALID_CNUM(cnum))
2924 string_sub(s,"%S",lp_servicename(Connections[cnum].service));
2925 string_sub(s,"%P",Connections[cnum].connectpath);
2926 string_sub(s,"%u",Connections[cnum].user);
2927 if (strstr(s,"%H")) {
2928 char *home = get_home_dir(Connections[cnum].user);
2929 if (home) string_sub(s,"%H",home);
2931 string_sub(s,"%g",gidtoname(Connections[cnum].gid));
2933 standard_sub_basic(s);
2937 These flags determine some of the permissions required to do an operation
2939 Note that I don't set NEED_WRITE on some write operations because they
2940 are used by some brain-dead clients when printing, and I don't want to
2941 force write permissions on print services.
2943 #define AS_USER (1<<0)
2944 #define NEED_WRITE (1<<1)
2945 #define TIME_INIT (1<<2)
2946 #define CAN_IPC (1<<3)
2947 #define AS_GUEST (1<<5)
2951 define a list of possible SMB messages and their corresponding
2952 functions. Any message that has a NULL function is unimplemented -
2953 please feel free to contribute implementations!
2955 struct smb_message_struct
2969 {SMBnegprot,"SMBnegprot",reply_negprot,0},
2970 {SMBtcon,"SMBtcon",reply_tcon,0},
2971 {SMBtdis,"SMBtdis",reply_tdis,0},
2972 {SMBexit,"SMBexit",reply_exit,0},
2973 {SMBioctl,"SMBioctl",reply_ioctl,0},
2974 {SMBecho,"SMBecho",reply_echo,0},
2975 {SMBsesssetupX,"SMBsesssetupX",reply_sesssetup_and_X,0},
2976 {SMBtconX,"SMBtconX",reply_tcon_and_X,0},
2977 {SMBulogoffX, "SMBulogoffX", reply_ulogoffX, 0},
2978 {SMBgetatr,"SMBgetatr",reply_getatr,AS_USER},
2979 {SMBsetatr,"SMBsetatr",reply_setatr,AS_USER | NEED_WRITE},
2980 {SMBchkpth,"SMBchkpth",reply_chkpth,AS_USER},
2981 {SMBsearch,"SMBsearch",reply_search,AS_USER},
2982 {SMBopen,"SMBopen",reply_open,AS_USER},
2984 /* note that SMBmknew and SMBcreate are deliberately overloaded */
2985 {SMBcreate,"SMBcreate",reply_mknew,AS_USER},
2986 {SMBmknew,"SMBmknew",reply_mknew,AS_USER},
2988 {SMBunlink,"SMBunlink",reply_unlink,AS_USER | NEED_WRITE},
2989 {SMBread,"SMBread",reply_read,AS_USER},
2990 {SMBwrite,"SMBwrite",reply_write,AS_USER},
2991 {SMBclose,"SMBclose",reply_close,AS_USER | CAN_IPC},
2992 {SMBmkdir,"SMBmkdir",reply_mkdir,AS_USER | NEED_WRITE},
2993 {SMBrmdir,"SMBrmdir",reply_rmdir,AS_USER | NEED_WRITE},
2994 {SMBdskattr,"SMBdskattr",reply_dskattr,AS_USER},
2995 {SMBmv,"SMBmv",reply_mv,AS_USER | NEED_WRITE},
2997 /* this is a Pathworks specific call, allowing the
2998 changing of the root path */
2999 {pSETDIR,"pSETDIR",reply_setdir,AS_USER},
3001 {SMBlseek,"SMBlseek",reply_lseek,AS_USER},
3002 {SMBflush,"SMBflush",reply_flush,AS_USER},
3003 {SMBctemp,"SMBctemp",reply_ctemp,AS_USER},
3004 {SMBsplopen,"SMBsplopen",reply_printopen,AS_USER},
3005 {SMBsplclose,"SMBsplclose",reply_printclose,AS_USER},
3006 {SMBsplretq,"SMBsplretq",reply_printqueue,AS_USER|AS_GUEST},
3007 {SMBsplwr,"SMBsplwr",reply_printwrite,AS_USER},
3008 {SMBlock,"SMBlock",reply_lock,AS_USER},
3009 {SMBunlock,"SMBunlock",reply_unlock,AS_USER},
3011 /* CORE+ PROTOCOL FOLLOWS */
3013 {SMBreadbraw,"SMBreadbraw",reply_readbraw,AS_USER},
3014 {SMBwritebraw,"SMBwritebraw",reply_writebraw,AS_USER},
3015 {SMBwriteclose,"SMBwriteclose",reply_writeclose,AS_USER},
3016 {SMBlockread,"SMBlockread",reply_lockread,AS_USER},
3017 {SMBwriteunlock,"SMBwriteunlock",reply_writeunlock,AS_USER},
3019 /* LANMAN1.0 PROTOCOL FOLLOWS */
3021 {SMBreadBmpx,"SMBreadBmpx",reply_readbmpx,AS_USER},
3022 {SMBreadBs,"SMBreadBs",NULL,AS_USER},
3023 {SMBwriteBmpx,"SMBwriteBmpx",reply_writebmpx,AS_USER},
3024 {SMBwriteBs,"SMBwriteBs",reply_writebs,AS_USER},
3025 {SMBwritec,"SMBwritec",NULL,AS_USER},
3026 {SMBsetattrE,"SMBsetattrE",reply_setattrE,AS_USER | NEED_WRITE},
3027 {SMBgetattrE,"SMBgetattrE",reply_getattrE,AS_USER},
3028 {SMBtrans,"SMBtrans",reply_trans,AS_USER | CAN_IPC},
3029 {SMBtranss,"SMBtranss",NULL,AS_USER | CAN_IPC},
3030 {SMBioctls,"SMBioctls",NULL,AS_USER},
3031 {SMBcopy,"SMBcopy",reply_copy,AS_USER | NEED_WRITE},
3032 {SMBmove,"SMBmove",NULL,AS_USER | NEED_WRITE},
3034 {SMBopenX,"SMBopenX",reply_open_and_X,AS_USER | CAN_IPC},
3035 {SMBreadX,"SMBreadX",reply_read_and_X,AS_USER},
3036 {SMBwriteX,"SMBwriteX",reply_write_and_X,AS_USER},
3037 {SMBlockingX,"SMBlockingX",reply_lockingX,AS_USER},
3039 {SMBffirst,"SMBffirst",reply_search,AS_USER},
3040 {SMBfunique,"SMBfunique",reply_search,AS_USER},
3041 {SMBfclose,"SMBfclose",reply_fclose,AS_USER},
3043 /* LANMAN2.0 PROTOCOL FOLLOWS */
3044 {SMBfindnclose, "SMBfindnclose", reply_findnclose, AS_USER},
3045 {SMBfindclose, "SMBfindclose", reply_findclose,AS_USER},
3046 {SMBtrans2, "SMBtrans2", reply_trans2, AS_USER},
3047 {SMBtranss2, "SMBtranss2", reply_transs2, AS_USER},
3049 /* messaging routines */
3050 {SMBsends,"SMBsends",reply_sends,AS_GUEST},
3051 {SMBsendstrt,"SMBsendstrt",reply_sendstrt,AS_GUEST},
3052 {SMBsendend,"SMBsendend",reply_sendend,AS_GUEST},
3053 {SMBsendtxt,"SMBsendtxt",reply_sendtxt,AS_GUEST},
3055 /* NON-IMPLEMENTED PARTS OF THE CORE PROTOCOL */
3057 {SMBsendb,"SMBsendb",NULL,AS_GUEST},
3058 {SMBfwdname,"SMBfwdname",NULL,AS_GUEST},
3059 {SMBcancelf,"SMBcancelf",NULL,AS_GUEST},
3060 {SMBgetmac,"SMBgetmac",NULL,AS_GUEST}
3063 /****************************************************************************
3064 return a string containing the function name of a SMB command
3065 ****************************************************************************/
3066 char *smb_fn_name(int type)
3068 static char *unknown_name = "SMBunknown";
3069 static int num_smb_messages =
3070 sizeof(smb_messages) / sizeof(struct smb_message_struct);
3073 for (match=0;match<num_smb_messages;match++)
3074 if (smb_messages[match].code == type)
3077 if (match == num_smb_messages)
3078 return(unknown_name);
3080 return(smb_messages[match].name);
3084 /****************************************************************************
3085 do a switch on the message type, and return the response size
3086 ****************************************************************************/
3087 static int switch_message(int type,char *inbuf,char *outbuf,int size,int bufsize)
3091 static int num_smb_messages =
3092 sizeof(smb_messages) / sizeof(struct smb_message_struct);
3096 struct timeval msg_start_time;
3097 struct timeval msg_end_time;
3098 static unsigned long total_time = 0;
3100 GetTimeOfDay(&msg_start_time);
3107 last_message = type;
3109 /* make sure this is an SMB packet */
3110 if (strncmp(smb_base(inbuf),"\377SMB",4) != 0)
3112 DEBUG(2,("Non-SMB packet of length %d\n",smb_len(inbuf)));
3116 for (match=0;match<num_smb_messages;match++)
3117 if (smb_messages[match].code == type)
3120 if (match == num_smb_messages)
3122 DEBUG(0,("Unknown message type %d!\n",type));
3123 outsize = reply_unknown(inbuf,outbuf);
3127 DEBUG(3,("switch message %s (pid %d)\n",smb_messages[match].name,pid));
3128 if (smb_messages[match].fn)
3130 int cnum = SVAL(inbuf,smb_tid);
3131 int flags = smb_messages[match].flags;
3132 int uid = SVAL(inbuf,smb_uid);
3134 /* does this protocol need to be run as root? */
3135 if (!(flags & AS_USER))
3138 /* does this protocol need to be run as the connected user? */
3139 if ((flags & AS_USER) && !become_user(cnum,uid)) {
3140 if (flags & AS_GUEST)
3143 return(ERROR(ERRSRV,ERRinvnid));
3145 /* this code is to work around a bug is MS client 3 without
3146 introducing a security hole - it needs to be able to do
3147 print queue checks as guest if it isn't logged in properly */
3148 if (flags & AS_USER)
3151 /* does it need write permission? */
3152 if ((flags & NEED_WRITE) && !CAN_WRITE(cnum))
3153 return(ERROR(ERRSRV,ERRaccess));
3155 /* ipc services are limited */
3156 if (IS_IPC(cnum) && (flags & AS_USER) && !(flags & CAN_IPC))
3157 return(ERROR(ERRSRV,ERRaccess));
3159 /* load service specific parameters */
3160 if (OPEN_CNUM(cnum) && !become_service(cnum,(flags & AS_USER)?True:False))
3161 return(ERROR(ERRSRV,ERRaccess));
3163 /* does this protocol need to be run as guest? */
3164 if ((flags & AS_GUEST) && (!become_guest() || !check_access(-1)))
3165 return(ERROR(ERRSRV,ERRaccess));
3169 outsize = smb_messages[match].fn(inbuf,outbuf,size,bufsize);
3173 outsize = reply_unknown(inbuf,outbuf);
3178 GetTimeOfDay(&msg_end_time);
3179 if (!(smb_messages[match].flags & TIME_INIT))
3181 smb_messages[match].time = 0;
3182 smb_messages[match].flags |= TIME_INIT;
3185 unsigned long this_time =
3186 (msg_end_time.tv_sec - msg_start_time.tv_sec)*1e6 +
3187 (msg_end_time.tv_usec - msg_start_time.tv_usec);
3188 smb_messages[match].time += this_time;
3189 total_time += this_time;
3191 DEBUG(2,("TIME %s %d usecs %g pct\n",
3192 smb_fn_name(type),smb_messages[match].time,
3193 (100.0*smb_messages[match].time) / total_time));
3200 /****************************************************************************
3201 construct a chained reply and add it to the already made reply
3202 **************************************************************************/
3203 int chain_reply(char *inbuf,char *outbuf,int size,int bufsize)
3205 static char *orig_inbuf;
3206 static char *orig_outbuf;
3207 int smb_com1, smb_com2 = CVAL(inbuf,smb_vwv0);
3208 unsigned smb_off2 = SVAL(inbuf,smb_vwv1);
3209 char *inbuf2, *outbuf2;
3211 char inbuf_saved[smb_wct];
3212 char outbuf_saved[smb_wct];
3213 extern int chain_size;
3214 int wct = CVAL(outbuf,smb_wct);
3215 int outsize = smb_size + 2*wct + SVAL(outbuf,smb_vwv0+2*wct);
3217 /* maybe its not chained */
3218 if (smb_com2 == 0xFF) {
3219 CVAL(outbuf,smb_vwv0) = 0xFF;
3223 if (chain_size == 0) {
3224 /* this is the first part of the chain */
3226 orig_outbuf = outbuf;
3229 /* we need to tell the client where the next part of the reply will be */
3230 SSVAL(outbuf,smb_vwv1,smb_offset(outbuf+outsize,outbuf));
3231 CVAL(outbuf,smb_vwv0) = smb_com2;
3233 /* remember how much the caller added to the chain, only counting stuff
3234 after the parameter words */
3235 chain_size += outsize - smb_wct;
3237 /* work out pointers into the original packets. The
3238 headers on these need to be filled in */
3239 inbuf2 = orig_inbuf + smb_off2 + 4 - smb_wct;
3240 outbuf2 = orig_outbuf + SVAL(outbuf,smb_vwv1) + 4 - smb_wct;
3242 /* remember the original command type */
3243 smb_com1 = CVAL(orig_inbuf,smb_com);
3245 /* save the data which will be overwritten by the new headers */
3246 memcpy(inbuf_saved,inbuf2,smb_wct);
3247 memcpy(outbuf_saved,outbuf2,smb_wct);
3249 /* give the new packet the same header as the last part of the SMB */
3250 memmove(inbuf2,inbuf,smb_wct);
3252 /* create the in buffer */
3253 CVAL(inbuf2,smb_com) = smb_com2;
3255 /* create the out buffer */
3256 bzero(outbuf2,smb_size);
3257 set_message(outbuf2,0,0,True);
3258 CVAL(outbuf2,smb_com) = CVAL(inbuf2,smb_com);
3260 memcpy(outbuf2+4,inbuf2+4,4);
3261 CVAL(outbuf2,smb_rcls) = SUCCESS;
3262 CVAL(outbuf2,smb_reh) = 0;
3263 CVAL(outbuf2,smb_flg) = 0x80 | (CVAL(inbuf2,smb_flg) & 0x8); /* bit 7 set
3265 SSVAL(outbuf2,smb_flg2,1); /* say we support long filenames */
3266 SSVAL(outbuf2,smb_err,SUCCESS);
3267 SSVAL(outbuf2,smb_tid,SVAL(inbuf2,smb_tid));
3268 SSVAL(outbuf2,smb_pid,SVAL(inbuf2,smb_pid));
3269 SSVAL(outbuf2,smb_uid,SVAL(inbuf2,smb_uid));
3270 SSVAL(outbuf2,smb_mid,SVAL(inbuf2,smb_mid));
3272 DEBUG(3,("Chained message\n"));
3275 /* process the request */
3276 outsize2 = switch_message(smb_com2,inbuf2,outbuf2,size-chain_size,
3277 bufsize-chain_size);
3279 /* copy the new reply and request headers over the old ones, but
3280 preserve the smb_com field */
3281 memmove(orig_outbuf,outbuf2,smb_wct);
3282 CVAL(orig_outbuf,smb_com) = smb_com1;
3284 /* restore the saved data, being careful not to overwrite any
3285 data from the reply header */
3286 memcpy(inbuf2,inbuf_saved,smb_wct);
3288 int ofs = smb_wct - PTR_DIFF(outbuf2,orig_outbuf);
3289 if (ofs < 0) ofs = 0;
3290 memmove(outbuf2+ofs,outbuf_saved+ofs,smb_wct-ofs);
3298 /****************************************************************************
3299 construct a reply to the incoming packet
3300 ****************************************************************************/
3301 int construct_reply(char *inbuf,char *outbuf,int size,int bufsize)
3303 int type = CVAL(inbuf,smb_com);
3305 int msg_type = CVAL(inbuf,0);
3306 extern int chain_size;
3308 smb_last_time = time(NULL);
3313 bzero(outbuf,smb_size);
3316 return(reply_special(inbuf,outbuf));
3318 CVAL(outbuf,smb_com) = CVAL(inbuf,smb_com);
3319 set_message(outbuf,0,0,True);
3321 memcpy(outbuf+4,inbuf+4,4);
3322 CVAL(outbuf,smb_rcls) = SUCCESS;
3323 CVAL(outbuf,smb_reh) = 0;
3324 CVAL(outbuf,smb_flg) = 0x80 | (CVAL(inbuf,smb_flg) & 0x8); /* bit 7 set
3326 SSVAL(outbuf,smb_flg2,1); /* say we support long filenames */
3327 SSVAL(outbuf,smb_err,SUCCESS);
3328 SSVAL(outbuf,smb_tid,SVAL(inbuf,smb_tid));
3329 SSVAL(outbuf,smb_pid,SVAL(inbuf,smb_pid));
3330 SSVAL(outbuf,smb_uid,SVAL(inbuf,smb_uid));
3331 SSVAL(outbuf,smb_mid,SVAL(inbuf,smb_mid));
3333 outsize = switch_message(type,inbuf,outbuf,size,bufsize);
3335 outsize += chain_size;
3338 smb_setlen(outbuf,outsize - 4);
3343 /****************************************************************************
3344 process commands from the client
3345 ****************************************************************************/
3346 static void process(void)
3348 static int trans_num = 0;
3350 extern struct from_host Client_info;
3353 fromhost(Client,&Client_info);
3355 InBuffer = (char *)malloc(BUFFER_SIZE + SAFETY_MARGIN);
3356 OutBuffer = (char *)malloc(BUFFER_SIZE + SAFETY_MARGIN);
3357 if ((InBuffer == NULL) || (OutBuffer == NULL))
3360 InBuffer += SMB_ALIGNMENT;
3361 OutBuffer += SMB_ALIGNMENT;
3364 DEBUG(3,("priming nmbd\n"));
3367 ip = *interpret_addr2("localhost");
3368 if (zero_ip(ip)) ip = *interpret_addr2("127.0.0.1");
3370 send_one_packet(OutBuffer,1,ip,NMB_PORT,SOCK_DGRAM);
3380 int deadtime = lp_deadtime()*60;
3382 int last_keepalive=0;
3385 deadtime = DEFAULT_SMBD_TIMEOUT;
3387 if (lp_readprediction())
3388 do_read_prediction();
3391 extern pstring share_del_pending;
3392 if (*share_del_pending) {
3394 if (!unlink(share_del_pending))
3395 DEBUG(3,("Share file deleted %s\n",share_del_pending));
3397 DEBUG(2,("Share del failed of %s\n",share_del_pending));
3398 share_del_pending[0] = 0;
3402 if (share_mode_pending) {
3404 check_share_modes();
3405 share_mode_pending=False;
3410 for (counter=SMBD_SELECT_LOOP;
3411 !receive_smb(Client,InBuffer,SMBD_SELECT_LOOP*1000);
3412 counter += SMBD_SELECT_LOOP)
3416 BOOL allidle = True;
3417 extern int keepalive;
3419 if (smb_read_error == READ_EOF) {
3420 DEBUG(3,("end of file from client\n"));
3424 if (smb_read_error == READ_ERROR) {
3425 DEBUG(3,("receive_smb error (%s) exiting\n",
3432 /* become root again if waiting */
3435 /* check for smb.conf reload */
3436 if (!(counter%SMBD_RELOAD_CHECK))
3437 reload_services(True);
3439 /* check the share modes every 10 secs */
3440 if (!(counter%SHARE_MODES_CHECK))
3441 check_share_modes();
3443 /* clean the share modes every 5 minutes */
3444 if (!(counter%SHARE_MODES_CLEAN))
3445 clean_share_modes();
3447 /* automatic timeout if all connections are closed */
3448 if (num_connections_open==0 && counter >= IDLE_CLOSED_TIMEOUT) {
3449 DEBUG(2,("%s Closing idle connection\n",timestring()));
3453 if (keepalive && (counter-last_keepalive)>keepalive) {
3454 extern int password_client;
3455 if (!send_keepalive(Client)) {
3456 DEBUG(2,("%s Keepalive failed - exiting\n",timestring()));
3459 /* also send a keepalive to the password server if its still
3461 if (password_client != -1)
3462 send_keepalive(password_client);
3463 last_keepalive = counter;
3466 /* check for connection timeouts */
3467 for (i=0;i<MAX_CONNECTIONS;i++)
3468 if (Connections[i].open)
3470 /* close dirptrs on connections that are idle */
3471 if ((t-Connections[i].lastused)>DPTR_IDLE_TIMEOUT)
3474 if (Connections[i].num_files_open > 0 ||
3475 (t-Connections[i].lastused)<deadtime)
3479 if (allidle && num_connections_open>0) {
3480 DEBUG(2,("%s Closing idle connection 2\n",timestring()));
3485 msg_type = CVAL(InBuffer,0);
3486 msg_flags = CVAL(InBuffer,1);
3487 type = CVAL(InBuffer,smb_com);
3489 len = smb_len(InBuffer);
3491 DEBUG(6,("got message type 0x%x of len 0x%x\n",msg_type,len));
3495 DEBUG(3,("%s Transaction %d of length %d\n",timestring(),trans_num,nread));
3498 if(trans_num == 1 && VT_Check(InBuffer)) {
3508 nread = construct_reply(InBuffer,OutBuffer,nread,maxxmit);
3511 if (CVAL(OutBuffer,0) == 0)
3512 show_msg(OutBuffer);
3514 if (nread != smb_len(OutBuffer) + 4)
3516 DEBUG(0,("ERROR: Invalid message response size! %d %d\n",
3518 smb_len(OutBuffer)));
3521 send_smb(Client,OutBuffer);
3528 /****************************************************************************
3529 initialise connect, service and file structs
3530 ****************************************************************************/
3531 static void init_structs(void )
3534 get_myname(myhostname,NULL);
3536 for (i=0;i<MAX_CONNECTIONS;i++)
3538 Connections[i].open = False;
3539 Connections[i].num_files_open=0;
3540 Connections[i].lastused=0;
3541 Connections[i].used=False;
3542 string_init(&Connections[i].user,"");
3543 string_init(&Connections[i].dirpath,"");
3544 string_init(&Connections[i].connectpath,"");
3545 string_init(&Connections[i].origpath,"");
3548 for (i=0;i<MAX_OPEN_FILES;i++)
3550 Files[i].open = False;
3551 string_init(&Files[i].name,"");
3557 /****************************************************************************
3558 usage on the program
3559 ****************************************************************************/
3560 static void usage(char *pname)
3562 DEBUG(0,("Incorrect program usage - are you sure the command line is correct?\n"));
3564 printf("Usage: %s [-D] [-p port] [-d debuglevel] [-l log basename] [-s services file]\n",pname);
3565 printf("Version %s\n",VERSION);
3566 printf("\t-D become a daemon\n");
3567 printf("\t-p port listen on the specified port\n");
3568 printf("\t-d debuglevel set the debuglevel\n");
3569 printf("\t-l log basename. Basename for log/debug files\n");
3570 printf("\t-s services file. Filename of services file\n");
3571 printf("\t-P passive only\n");
3572 printf("\t-a overwrite log file, don't append\n");
3577 /****************************************************************************
3579 ****************************************************************************/
3580 int main(int argc,char *argv[])
3582 extern BOOL append_log;
3583 /* shall I run as a daemon */
3584 BOOL is_daemon = False;
3585 int port = SMB_PORT;
3587 extern char *optarg;
3589 #ifdef NEED_AUTH_PARAMETERS
3590 set_auth_parameters(argc,argv);
3601 strcpy(debugf,SMBLOGFILE);
3603 setup_logging(argv[0],False);
3605 charset_initialise();
3607 /* make absolutely sure we run as root - to handle cases whre people
3608 are crazy enough to have it setuid */
3618 fault_setup(exit_server);
3620 umask(0777 & ~DEF_CREATE_MASK);
3624 /* this is for people who can't start the program correctly */
3625 while (argc > 1 && (*argv[1] != '-'))
3631 while ((opt = getopt(argc, argv, "O:i:l:s:d:Dp:hPa")) != EOF)
3635 strcpy(user_socket_options,optarg);
3638 strcpy(scope,optarg);
3642 extern BOOL passive;
3647 strcpy(servicesf,optarg);
3650 strcpy(debugf,optarg);
3654 extern BOOL append_log;
3655 append_log = !append_log;
3665 DEBUGLEVEL = atoi(optarg);
3668 port = atoi(optarg);
3681 DEBUG(2,("%s smbd version %s started\n",timestring(),VERSION));
3682 DEBUG(2,("Copyright Andrew Tridgell 1992-1995\n"));
3684 #ifndef NO_GETRLIMIT
3685 #ifdef RLIMIT_NOFILE
3688 getrlimit(RLIMIT_NOFILE, &rlp);
3689 rlp.rlim_cur = (MAX_OPEN_FILES>rlp.rlim_max)? rlp.rlim_max:MAX_OPEN_FILES;
3690 setrlimit(RLIMIT_NOFILE, &rlp);
3691 getrlimit(RLIMIT_NOFILE, &rlp);
3692 DEBUG(3,("Maximum number of open files per session is %d\n",rlp.rlim_cur));
3698 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
3699 getuid(),getgid(),geteuid(),getegid()));
3701 if (sizeof(uint16) < 2 || sizeof(uint32) < 4)
3703 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
3709 if (!reload_services(False))
3712 #ifndef NO_SIGNAL_TEST
3713 signal(SIGHUP,SIGNAL_CAST sig_hup);
3716 DEBUG(3,("%s loaded services\n",timestring()));
3718 if (!is_daemon && !is_a_socket(0))
3720 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
3726 DEBUG(3,("%s becoming a daemon\n",timestring()));
3730 if (!open_sockets(is_daemon,port))
3733 #if FAST_SHARE_MODES
3734 if (!start_share_mode_mgmt())
3738 /* possibly reload the services file. */
3739 reload_services(True);
3741 maxxmit = MIN(lp_maxxmit(),BUFFER_SIZE);
3745 if (sys_chroot(lp_rootdir()) == 0)
3746 DEBUG(2,("%s changed root to %s\n",timestring(),lp_rootdir()));
3749 read_smbbrowse_conf(myhostname);
3754 #if FAST_SHARE_MODES
3755 stop_share_mode_mgmt();
3758 exit_server("normal exit");