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Use Authz to fetch correct user permissions. 

* sec_acl.cc (getacl): Use Authz to fetch correct user permissions.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2015-08-31 11:34:38 +02:00
parent 42fad6ffa5
commit 7972e63402
2 changed files with 28 additions and 2 deletions
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4
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,7 @@
2015-11-18 Corinna Vinschen <corinna@vinschen.de>
* sec_acl.cc (getacl): Use Authz to fetch correct user permissions.
2015-11-18 Corinna Vinschen <corinna@vinschen.de>
* autoload.cc (AuthzAccessCheck): Import.

26
winsup/cygwin/sec_acl.cc
View File

@ -642,6 +642,15 @@ get_posix_access (PSECURITY_DESCRIPTOR psd,
goto out;
}
/* If we use the Windows user DB, use Authz to make sure the owner
permissions are correctly reflecting the Windows permissions. */
if (cygheap->pg.nss_pwd_db ())
{
mode_t attr = 0;
authz_get_user_attribute (&attr, psd, owner_sid);
lacl[0].a_perm = attr >> 6;
}
/* Files and dirs are created with a NULL descriptor, so inheritence
rules kick in. If no inheritable entries exist in the parent object,
Windows will create entries according to the user token's default DACL.
@ -787,8 +796,21 @@ get_posix_access (PSECURITY_DESCRIPTOR psd,
}
if ((pos = searchace (lacl, MAX_ACL_ENTRIES, type, id)) >= 0)
{
getace (lacl[pos], type, id, ace->Mask, ace->Header.AceType,
new_style && type & (USER | GROUP_OBJ | GROUP));
/* If we use the Windows user DB, use Authz to check for user
permissions. */
if (cygheap->pg.nss_pwd_db () && (type & (USER_OBJ | USER)))
{
/* We already handle the USER_OBJ entry above. */
if (type == USER)
{
mode_t attr = 0;
authz_get_user_attribute (&attr, psd, ace_sid);
lacl[pos].a_perm = attr >> 6;
}
}
else
getace (lacl[pos], type, id, ace->Mask, ace->Header.AceType,
new_style && type & (USER | GROUP_OBJ | GROUP));
if (!new_style)
{
/* Fix up CLASS_OBJ value. */