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Partially revert change from 2005-04-03, always running under an

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impersonation token, which collides with Vista UAC.
	* cygheap.h (deimpersonate): revert to self instead of impersonating
	hProcImpToken.
	(reimpersonate): Only impersonate if setuid.
	* dcrt0.cc (dll_crt0_0): Don't initialize hProcImpToken here.
	(dll_crt0_1): Set privileges on hProcToken.
	* fork.cc (frok::child): Set privileges on hProcToken.  Close handle to
	hProcImpToken.
	* grp.cc (internal_getgroups): Use hProcToken instead of hProcImpToken.
	* security.cc (check_access): Create hProcImpToken on demand here.
	* security.h (set_process_privilege): Set privileges on hProcToken.
	(_push_thread_privilege): Use hProcToken instead of hProcImpToken.
	(pop_thread_privilege): If not setuid'ed, revert to self.
	* syscalls.cc (setegid32): Drop setting primary group on hProcImpToken.
	Close handle to hProcImpToken.
	* uinfo.cc (internal_getlogin): Ditto.
	* winsup.h (clear_procimptoken): New inline function.
This commit is contained in:
Corinna Vinschen
2006-12-12 16:27:32 +00:00
parent 815122d842
commit 5684cfebba
10 changed files with 58 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
winsup/cygwin/uinfo.cc
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@@ -115,11 +115,9 @@ internal_getlogin (cygheap_user &user)
if (!SetTokenInformation (hProcToken, TokenPrimaryGroup,
&gsid, sizeof gsid))
debug_printf ("SetTokenInformation(TokenPrimaryGroup), %E");
if (!SetTokenInformation (hProcImpToken, TokenPrimaryGroup,
&gsid, sizeof gsid))
debug_printf ("SetTokenInformation(TokenPrimaryGroup), %E");
else
user.groups.pgsid = gsid;
clear_procimptoken ();
}
}
else