/*
- Unix SMB/Netbios implementation.
- Version 1.9.
+ Unix SMB/CIFS implementation.
dos mode handling functions
Copyright (C) Andrew Tridgell 1992-1998
#include "includes.h"
-extern int DEBUGLEVEL;
-
/****************************************************************************
change a dos mode to a unix mode
base permission for files:
dname = parent_dirname(fname);
DEBUG(2,("unix_mode(%s) inheriting from %s\n",fname,dname));
- if (dos_stat(dname,&sbuf) != 0) {
+ if (SMB_VFS_STAT(conn,dname,&sbuf) != 0) {
DEBUG(4,("unix_mode(%s) failed, [dir %s]: %s\n",fname,dname,strerror(errno)));
return(0); /* *** shouldn't happen! *** */
}
result |= lp_force_create_mode(SNUM(conn));
}
}
+
+ DEBUG(3,("unix_mode(%s) returning 0%o\n",fname,(int)result ));
return(result);
}
/****************************************************************************
change a unix mode to a dos mode
****************************************************************************/
-int dos_mode(connection_struct *conn,char *path,SMB_STRUCT_STAT *sbuf)
+uint32 dos_mode(connection_struct *conn,char *path,SMB_STRUCT_STAT *sbuf)
{
- int result = 0;
-
- DEBUG(8,("dos_mode: %s\n", path));
+ int result = 0;
- if ((sbuf->st_mode & S_IWUSR) == 0)
- result |= aRONLY;
+ DEBUG(8,("dos_mode: %s\n", path));
- if (MAP_ARCHIVE(conn) && ((sbuf->st_mode & S_IXUSR) != 0))
- result |= aARCH;
+ if ((sbuf->st_mode & S_IWUSR) == 0)
+ result |= aRONLY;
+
+ if (MAP_ARCHIVE(conn) && ((sbuf->st_mode & S_IXUSR) != 0))
+ result |= aARCH;
- if (MAP_SYSTEM(conn) && ((sbuf->st_mode & S_IXGRP) != 0))
- result |= aSYSTEM;
-
- if (MAP_HIDDEN(conn) && ((sbuf->st_mode & S_IXOTH) != 0))
- result |= aHIDDEN;
+ if (MAP_SYSTEM(conn) && ((sbuf->st_mode & S_IXGRP) != 0))
+ result |= aSYSTEM;
+
+ if (MAP_HIDDEN(conn) && ((sbuf->st_mode & S_IXOTH) != 0))
+ result |= aHIDDEN;
- if (S_ISDIR(sbuf->st_mode))
- result = aDIR | (result & aRONLY);
+ if (S_ISDIR(sbuf->st_mode))
+ result = aDIR | (result & aRONLY);
+ if (sbuf->st_size > sbuf->st_blocks * (SMB_OFF_T)sbuf->st_blksize) {
+ result |= FILE_ATTRIBUTE_SPARSE;
+ }
+
#ifdef S_ISLNK
#if LINKS_READ_ONLY
- if (S_ISLNK(sbuf->st_mode) && S_ISDIR(sbuf->st_mode))
- result |= aRONLY;
+ if (S_ISLNK(sbuf->st_mode) && S_ISDIR(sbuf->st_mode))
+ result |= aRONLY;
#endif
#endif
- /* hide files with a name starting with a . */
- if (lp_hide_dot_files(SNUM(conn)))
- {
- char *p = strrchr(path,'/');
- if (p)
- p++;
- else
- p = path;
-
- if (p[0] == '.' && p[1] != '.' && p[1] != 0)
- result |= aHIDDEN;
- }
-
- /* Optimization : Only call is_hidden_path if it's not already
- hidden. */
- if (!(result & aHIDDEN) && IS_HIDDEN_PATH(conn,path))
- {
- result |= aHIDDEN;
- }
-
- DEBUG(8,("dos_mode returning "));
-
- if (result & aHIDDEN) DEBUG(8, ("h"));
- if (result & aRONLY ) DEBUG(8, ("r"));
- if (result & aSYSTEM) DEBUG(8, ("s"));
- if (result & aDIR ) DEBUG(8, ("d"));
- if (result & aARCH ) DEBUG(8, ("a"));
-
- DEBUG(8,("\n"));
-
- return(result);
+ /* hide files with a name starting with a . */
+ if (lp_hide_dot_files(SNUM(conn))) {
+ char *p = strrchr_m(path,'/');
+ if (p)
+ p++;
+ else
+ p = path;
+
+ if (p[0] == '.' && p[1] != '.' && p[1] != 0)
+ result |= aHIDDEN;
+ }
+
+ /* Optimization : Only call is_hidden_path if it's not already
+ hidden. */
+ if (!(result & aHIDDEN) && IS_HIDDEN_PATH(conn,path)) {
+ result |= aHIDDEN;
+ }
+
+ DEBUG(8,("dos_mode returning "));
+
+ if (result & aHIDDEN) DEBUG(8, ("h"));
+ if (result & aRONLY ) DEBUG(8, ("r"));
+ if (result & aSYSTEM) DEBUG(8, ("s"));
+ if (result & aDIR ) DEBUG(8, ("d"));
+ if (result & aARCH ) DEBUG(8, ("a"));
+
+ DEBUG(8,("\n"));
+
+ return(result);
}
/*******************************************************************
chmod a file - but preserve some bits
********************************************************************/
-int file_chmod(connection_struct *conn,char *fname,int dosmode,SMB_STRUCT_STAT *st)
+int file_chmod(connection_struct *conn,char *fname, uint32 dosmode,SMB_STRUCT_STAT *st)
{
- SMB_STRUCT_STAT st1;
- int mask=0;
- mode_t tmp;
- mode_t unixmode;
-
- if (!st) {
- st = &st1;
- if (conn->vfs_ops.stat(dos_to_unix(fname,False),st)) return(-1);
- }
+ SMB_STRUCT_STAT st1;
+ int mask=0;
+ mode_t tmp;
+ mode_t unixmode;
+ int ret = -1;
- if (S_ISDIR(st->st_mode)) dosmode |= aDIR;
+ if (!st) {
+ st = &st1;
+ if (SMB_VFS_STAT(conn,fname,st))
+ return(-1);
+ }
- if (dos_mode(conn,fname,st) == dosmode) return(0);
+ if (S_ISDIR(st->st_mode))
+ dosmode |= aDIR;
+ else
+ dosmode &= ~aDIR;
- unixmode = unix_mode(conn,dosmode,fname);
+ if (dos_mode(conn,fname,st) == dosmode)
+ return(0);
- /* preserve the s bits */
- mask |= (S_ISUID | S_ISGID);
+ unixmode = unix_mode(conn,dosmode,fname);
- /* preserve the t bit */
+ /* preserve the s bits */
+ mask |= (S_ISUID | S_ISGID);
+
+ /* preserve the t bit */
#ifdef S_ISVTX
- mask |= S_ISVTX;
+ mask |= S_ISVTX;
#endif
- /* possibly preserve the x bits */
- if (!MAP_ARCHIVE(conn)) mask |= S_IXUSR;
- if (!MAP_SYSTEM(conn)) mask |= S_IXGRP;
- if (!MAP_HIDDEN(conn)) mask |= S_IXOTH;
-
- unixmode |= (st->st_mode & mask);
-
- /* if we previously had any r bits set then leave them alone */
- if ((tmp = st->st_mode & (S_IRUSR|S_IRGRP|S_IROTH))) {
- unixmode &= ~(S_IRUSR|S_IRGRP|S_IROTH);
- unixmode |= tmp;
- }
-
- /* if we previously had any w bits set then leave them alone
- whilst adding in the new w bits, if the new mode is not rdonly */
- if (!IS_DOS_READONLY(dosmode)) {
- unixmode |= (st->st_mode & (S_IWUSR|S_IWGRP|S_IWOTH));
- }
-
- return(conn->vfs_ops.chmod(fname,unixmode));
+ /* possibly preserve the x bits */
+ if (!MAP_ARCHIVE(conn))
+ mask |= S_IXUSR;
+ if (!MAP_SYSTEM(conn))
+ mask |= S_IXGRP;
+ if (!MAP_HIDDEN(conn))
+ mask |= S_IXOTH;
+
+ unixmode |= (st->st_mode & mask);
+
+ /* if we previously had any r bits set then leave them alone */
+ if ((tmp = st->st_mode & (S_IRUSR|S_IRGRP|S_IROTH))) {
+ unixmode &= ~(S_IRUSR|S_IRGRP|S_IROTH);
+ unixmode |= tmp;
+ }
+
+ /* if we previously had any w bits set then leave them alone
+ whilst adding in the new w bits, if the new mode is not rdonly */
+ if (!IS_DOS_READONLY(dosmode)) {
+ unixmode |= (st->st_mode & (S_IWUSR|S_IWGRP|S_IWOTH));
+ }
+
+ if ((ret = SMB_VFS_CHMOD(conn,fname,unixmode)) == 0)
+ return 0;
+
+ if((errno != EPERM) && (errno != EACCES))
+ return -1;
+
+ if(!lp_dos_filemode(SNUM(conn)))
+ return -1;
+
+ /* We want DOS semantics, ie allow non owner with write permission to change the
+ bits on a file. Just like file_utime below.
+ */
+
+ /* Check if we have write access. */
+ if (CAN_WRITE(conn)) {
+ /*
+ * We need to open the file with write access whilst
+ * still in our current user context. This ensures we
+ * are not violating security in doing the fchmod.
+ * This file open does *not* break any oplocks we are
+ * holding. We need to review this.... may need to
+ * break batch oplocks open by others. JRA.
+ */
+ files_struct *fsp = open_file_fchmod(conn,fname,st);
+ if (!fsp)
+ return -1;
+ become_root();
+ ret = SMB_VFS_FCHMOD(fsp, fsp->fd, unixmode);
+ unbecome_root();
+ close_file_fchmod(fsp);
+ }
+
+ return( ret );
}
errno = 0;
- if(conn->vfs_ops.utime(dos_to_unix(fname, False), times) == 0)
+ if(SMB_VFS_UTIME(conn,fname, times) == 0)
return 0;
if((errno != EPERM) && (errno != EACCES))
(as DOS does).
*/
- if(conn->vfs_ops.stat(dos_to_unix(fname,False),&sb) != 0)
+ if(SMB_VFS_STAT(conn,fname,&sb) != 0)
return -1;
/* Check if we have write access. */
in_group(sb.st_gid,current_user.gid,
current_user.ngroups,current_user.groups)))) {
/* We are allowed to become root and change the filetime. */
- become_root(False);
- ret = conn->vfs_ops.utime(dos_to_unix(fname, False), times);
- unbecome_root(False);
+ become_root();
+ ret = SMB_VFS_UTIME(conn,fname, times);
+ unbecome_root();
}
}
git.samba.org / tprouty / samba.git / blobdiff