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* security.h: Add third argument to set_process_privilege.

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* autoload.cc: Add OpenThreadToken.
	* sec_helper.cc (set_process_privilege): Add and use use_thread
	argument.
	* security.cc (alloc_sd): Modify call to set_process_privilege.
	Remember the result in each process. If failed and file owner is not
	the user, fail.
This commit is contained in:
Corinna Vinschen
2003-02-03 15:55:20 +00:00
parent f0f3ea68f3
commit 153e83c605
5 changed files with 33 additions and 8 deletions
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17
winsup/cygwin/security.cc
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@ -1563,9 +1563,20 @@ alloc_sd (__uid32_t uid, __gid32_t gid, int attribute,
}
owner_sid.debug_print ("alloc_sd: owner SID =");
/* Must have SE_RESTORE_NAME privilege to change owner */
if (cur_owner_sid && owner_sid != cur_owner_sid
&& set_process_privilege (SE_RESTORE_NAME) < 0 )
/* 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 && owner_sid != cygheap->user.sid ())
return NULL;
/* Get SID of new group. */