idmap_hash: Add the idmap/nss-info provider from Likewise Open.

* Port the Likewise Open idmap/nss_info provider (renamed to
  idmap_hash).

* uids & gids are generated based on a hashing algorithm that collapse
  the Domain SID to a 31 bit number.  The reverse mapping from the
  high order 11 bits to the originat8ing sdomain SID is stored in
  a has table initialized at start up.

* Includes support for "idmap_hash:name_map = <filename>" for the
  name aliasing layer.  The name map file consist of entries in
  the form "alias = DOMAIN\name"

1 files changed, 60 insertions, 0 deletions

diff --git a/source3/winbindd/idmap_hash/idmap_hash.h b/source3/winbindd/idmap_hash/idmap_hash.h
new file mode 100644
index 0000000000..621520e950
--- /dev/null
+++ b/source3/winbindd/idmap_hash/idmap_hash.h
@@ -0,0 +1,60 @@
+/*
+ *  lwopen.h
+ *
+ *  Copyright (C) Gerald Carter  <jerry@samba.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef _LWOPEN_H
+#define _LWOPEN_H
+
+#define BAIL_ON_NTSTATUS_ERROR(x)	   \
+	do {				   \
+		if (!NT_STATUS_IS_OK(x)) { \
+			DEBUG(10,("Failed! (%s)\n", nt_errstr(x)));	\
+			goto done;	   \
+		}			   \
+	}				   \
+	while (0);			   \
+
+#define BAIL_ON_PTR_NT_ERROR(p, x)			\
+	do {						\
+		if ((p) == NULL ) {			\
+			DEBUG(10,("NULL pointer!\n"));	\
+			x = NT_STATUS_NO_MEMORY;	\
+			goto done;			\
+		} else {				\
+			x = NT_STATUS_OK;		\
+		}					\
+	} while (0);
+
+#define PRINT_NTSTATUS_ERROR(x, hdr, level)				\
+	do {								\
+		if (!NT_STATUS_IS_OK(x)) {				\
+			DEBUG(level,("Likewise Open ("hdr"): %s\n", nt_errstr(x))); \
+		}							\
+	} while(0);
+
+
+NTSTATUS mapfile_lookup_key(TALLOC_CTX *ctx,
+			    const char *value,
+			    char **key);
+
+NTSTATUS mapfile_lookup_value(TALLOC_CTX *ctx,
+			      const char *key,
+			      char **value);
+
+#endif /* _LWOPEN_H */