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* autoload.cc (NtCreateFile): Add.

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* dir.cc (mkdir): Change set_file_attribute call to indicate that
	NT security isn't used.
	* fhandler.cc (fhandler_base::open_9x): New method, created from
	fhandler_base::open.
	(fhandler_base::open): Rearrange to use NtCreateFile instead of
	CreateFile.
	* fhandler.h (enum query_state): Redefine query_null_access to
	query_stat_control.  query_null_access isn't allowed in NtCreateFile.
	(fhandler_base::open_9x): Declare.
	* fhandler_disk_file.cc (fhandler_base::fstat_fs): Use
	query_stat_control first, query_read_control if that fails.
	(fhandler_disk_file::fchmod): Call enable_restore_privilege before
	trying to open for query_write_control.  Don't fall back to
	opening for query_read_control.
	(fhandler_disk_file::fchown): Ditto.
	(fhandler_disk_file::facl):  Only request restore privilege and query
	access necessary for given cmd.
	* fhandler_raw.cc (fhandler_dev_raw::open): Call fhandler_base::open
	instead of opening device here.
	* ntdll.h (NtCreateFile): Declare.
	* path.cc (symlink_worker): Change set_file_attribute call to indicate
	that NT security isn't used.
	* sec_acl.cc (getacl): Fix bracketing.
	* sec_helper.cc (enable_restore_privilege): New function.
	* security.cc (str2buf2uni_cat): New function.
	(write_sd): Don't request restore permission here.
	* security.h (set_process_privileges): Drop stale declaration.
	(str2buf2uni): Declare.
	(str2buf2uni_cat): Declare.
	(enable_restore_privilege): Declare.
	* syscalls.cc (fchown32): Return immediate success on 9x.
This commit is contained in:
Corinna Vinschen
2004-04-16 21:22:13 +00:00
parent e2c248c18b
commit e859706578
14 changed files with 293 additions and 144 deletions
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41
winsup/cygwin/security.cc
View File

@ -165,6 +165,16 @@ str2buf2uni (UNICODE_STRING &tgt, WCHAR *buf, const char *srcstr)
sys_mbstowcs (buf, srcstr, tgt.MaximumLength);
}
void
str2buf2uni_cat (UNICODE_STRING &tgt, const char *srcstr)
{
DWORD len = strlen (srcstr) * sizeof (WCHAR);
sys_mbstowcs (tgt.Buffer + tgt.Length / sizeof (WCHAR), srcstr,
len + tgt.MaximumLength);
tgt.Length += len;
tgt.MaximumLength += len;
}
#if 0 /* unused */
static void
lsa2wchar (WCHAR *tgt, LSA_UNICODE_STRING &src, int size)
@ -1119,38 +1129,9 @@ read_sd (const char *file, security_descriptor &sd)
LONG
write_sd (HANDLE fh, const char *file, security_descriptor &sd)
{
/* Try turning privilege on, may not have WRITE_OWNER or WRITE_DAC access.
Must have privilege to set different owner, else BackupWrite misbehaves */
static int NO_COPY saved_res; /* 0: never, 1: failed, 2 & 3: OK */
int res;
if (!saved_res || cygheap->user.issetuid ())
{
res = 2 + set_process_privilege (SE_RESTORE_NAME, true,
cygheap->user.issetuid ());
if (!cygheap->user.issetuid ())
saved_res = res;
}
else
res = saved_res;
if (res == 1)
{
BOOL dummy;
cygpsid owner;
if (!GetSecurityDescriptorOwner (sd, (PSID *) &owner, &dummy))
{
__seterrno ();
return -1;
}
if (owner != cygheap->user.sid ())
{
set_errno (EPERM);
return -1;
}
}
NTSTATUS ret = STATUS_SUCCESS;
int retry = 0;
res = -1;
int res = -1;
for (; retry < 2; ++retry)
{
if (retry && (fh = CreateFile (file, WRITE_OWNER | WRITE_DAC,