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* autoload.cc: Add load statemant for SetSecurityDescriptorControl.

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* security.cc (alloc_sd): Always set SE_DACL_PROTECTED flag on
        Win2K and higher.
This commit is contained in:
Corinna Vinschen 2000-12-20 12:42:43 +00:00
parent e625e1b99e
commit aa2b85cc90
3 changed files with 22 additions and 0 deletions
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6
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,9 @@
Wed Dec 20 13:37:00 2000 Corinna Vinschen <corinna@vinschen.de>
* autoload.cc: Add load statemant for SetSecurityDescriptorControl.
* security.cc (alloc_sd): Always set SE_DACL_PROTECTED flag on
Win2K and higher.
Wed Dec 20 01:02:13 2000 Christopher Faylor <cgf@cygnus.com>
* exceptions.cc (reset_signal_arrived): Make global to avoid inlining.

1
winsup/cygwin/autoload.cc
View File

@ -228,6 +228,7 @@ LoadDLLfunc (RegisterEventSourceA, 8, advapi32)
LoadDLLfunc (ReportEventA, 36, advapi32)
LoadDLLfunc (RevertToSelf, 0, advapi32)
LoadDLLfunc (SetKernelObjectSecurity, 12, advapi32)
LoadDLLfunc (SetSecurityDescriptorControl, 12, advapi32)
LoadDLLfunc (SetSecurityDescriptorDacl, 16, advapi32)
LoadDLLfunc (SetSecurityDescriptorGroup, 12, advapi32)
LoadDLLfunc (SetSecurityDescriptorOwner, 12, advapi32)

15
winsup/cygwin/security.cc
View File

@ -915,6 +915,21 @@ alloc_sd (uid_t uid, gid_t gid, const char *logsrv, int attribute,
return NULL;
}
/*
* We set the SE_DACL_PROTECTED flag here to prevent the DACL from being modified
* by inheritable ACEs.
* This flag as well as the SetSecurityDescriptorControl call are available only
* since Win2K.
*/
static int win2KorHigher = -1;
if (win2KorHigher == -1)
{
DWORD version = GetVersion ();
win2KorHigher = (version & 0x80000000) || (version & 0xff) < 5 ? 0 : 1;
}
if (win2KorHigher > 0)
SetSecurityDescriptorControl (&sd, SE_DACL_PROTECTED, SE_DACL_PROTECTED);
/* Create owner for local security descriptor. */
if (! SetSecurityDescriptorOwner(&sd, owner_sid, FALSE))
{