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/*
Unix SMB/CIFS implementation.
client file operations
Copyright (C) Andrew Tridgell 1994-1998
Copyright (C) Jeremy Allison 2001-2002
Copyright (C) James Myers 2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "libcli/smb/smb_common.h"
#include "system/filesys.h"
/**
Return a string representing a CIFS attribute for a file.
**/
char *attrib_string(TALLOC_CTX *mem_ctx, uint32_t attrib)
{
int i, len;
const struct {
char c;
uint16_t attr;
} attr_strs[] = {
{'V', FILE_ATTRIBUTE_VOLUME},
{'D', FILE_ATTRIBUTE_DIRECTORY},
{'A', FILE_ATTRIBUTE_ARCHIVE},
{'H', FILE_ATTRIBUTE_HIDDEN},
{'S', FILE_ATTRIBUTE_SYSTEM},
{'N', FILE_ATTRIBUTE_NORMAL},
{'R', FILE_ATTRIBUTE_READONLY},
{'d', FILE_ATTRIBUTE_DEVICE},
{'t', FILE_ATTRIBUTE_TEMPORARY},
{'s', FILE_ATTRIBUTE_SPARSE},
{'r', FILE_ATTRIBUTE_REPARSE_POINT},
{'c', FILE_ATTRIBUTE_COMPRESSED},
{'o', FILE_ATTRIBUTE_OFFLINE},
{'n', FILE_ATTRIBUTE_NONINDEXED},
{'e', FILE_ATTRIBUTE_ENCRYPTED}
};
char *ret;
ret = talloc_array(mem_ctx, char, ARRAY_SIZE(attr_strs)+1);
if (!ret) {
return NULL;
}
for (len=i=0; i<ARRAY_SIZE(attr_strs); i++) {
if (attrib & attr_strs[i].attr) {
ret[len++] = attr_strs[i].c;
}
}
ret[len] = 0;
talloc_set_name_const(ret, ret);
return ret;
}
/****************************************************************************
Map standard UNIX permissions onto wire representations.
****************************************************************************/
uint32_t unix_perms_to_wire(mode_t perms)
{
unsigned int ret = 0;
ret |= ((perms & S_IXOTH) ? UNIX_X_OTH : 0);
ret |= ((perms & S_IWOTH) ? UNIX_W_OTH : 0);
ret |= ((perms & S_IROTH) ? UNIX_R_OTH : 0);
ret |= ((perms & S_IXGRP) ? UNIX_X_GRP : 0);
ret |= ((perms & S_IWGRP) ? UNIX_W_GRP : 0);
ret |= ((perms & S_IRGRP) ? UNIX_R_GRP : 0);
ret |= ((perms & S_IXUSR) ? UNIX_X_USR : 0);
ret |= ((perms & S_IWUSR) ? UNIX_W_USR : 0);
ret |= ((perms & S_IRUSR) ? UNIX_R_USR : 0);
#ifdef S_ISVTX
ret |= ((perms & S_ISVTX) ? UNIX_STICKY : 0);
#endif
#ifdef S_ISGID
ret |= ((perms & S_ISGID) ? UNIX_SET_GID : 0);
#endif
#ifdef S_ISUID
ret |= ((perms & S_ISUID) ? UNIX_SET_UID : 0);
#endif
return ret;
}
/****************************************************************************
Map wire permissions to standard UNIX.
****************************************************************************/
mode_t wire_perms_to_unix(uint32_t perms)
{
mode_t ret = (mode_t)0;
ret |= ((perms & UNIX_X_OTH) ? S_IXOTH : 0);
ret |= ((perms & UNIX_W_OTH) ? S_IWOTH : 0);
ret |= ((perms & UNIX_R_OTH) ? S_IROTH : 0);
ret |= ((perms & UNIX_X_GRP) ? S_IXGRP : 0);
ret |= ((perms & UNIX_W_GRP) ? S_IWGRP : 0);
ret |= ((perms & UNIX_R_GRP) ? S_IRGRP : 0);
ret |= ((perms & UNIX_X_USR) ? S_IXUSR : 0);
ret |= ((perms & UNIX_W_USR) ? S_IWUSR : 0);
ret |= ((perms & UNIX_R_USR) ? S_IRUSR : 0);
#ifdef S_ISVTX
ret |= ((perms & UNIX_STICKY) ? S_ISVTX : 0);
#endif
#ifdef S_ISGID
ret |= ((perms & UNIX_SET_GID) ? S_ISGID : 0);
#endif
#ifdef S_ISUID
ret |= ((perms & UNIX_SET_UID) ? S_ISUID : 0);
#endif
return ret;
}
/****************************************************************************
Return the file type from the wire filetype for UNIX extensions.
****************************************************************************/
mode_t unix_filetype_from_wire(uint32_t wire_type)
{
switch (wire_type) {
case UNIX_TYPE_FILE:
return S_IFREG;
case UNIX_TYPE_DIR:
return S_IFDIR;
#ifdef S_IFLNK
case UNIX_TYPE_SYMLINK:
return S_IFLNK;
#endif
#ifdef S_IFCHR
case UNIX_TYPE_CHARDEV:
return S_IFCHR;
#endif
#ifdef S_IFBLK
case UNIX_TYPE_BLKDEV:
return S_IFBLK;
#endif
#ifdef S_IFIFO
case UNIX_TYPE_FIFO:
return S_IFIFO;
#endif
#ifdef S_IFSOCK
case UNIX_TYPE_SOCKET:
return S_IFSOCK;
#endif
default:
return (mode_t)0;
}
}
bool smb_buffer_oob(uint32_t bufsize, uint32_t offset, uint32_t length)
{
if ((offset + length < offset) || (offset + length < length)) {
/* wrap */
return true;
}
if ((offset > bufsize) || (offset + length > bufsize)) {
/* overflow */
return true;
}
return false;
}
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