1 files changed, 136 insertions, 0 deletions
diff --git a/source4/librpc/ndr/ndr_sec_helper.c b/source4/librpc/ndr/ndr_sec_helper.c
new file mode 100644
index 0000000000..268f270ebe
--- /dev/null
+++ b/source4/librpc/ndr/ndr_sec_helper.c
@@ -0,0 +1,136 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   fast routines for getting the wire size of security objects
+
+   Copyright (C) Andrew Tridgell 2003
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+#include "includes.h"
+#include "librpc/gen_ndr/ndr_security.h"
+
+/*
+  return the wire size of a dom_sid
+*/
+size_t ndr_size_dom_sid(struct dom_sid *sid)
+{
+	if (!sid) return 0;
+	return 8 + 4*sid->num_auths;
+}
+
+/*
+  return the wire size of a dom_sid
+*/
+size_t ndr_length_dom_sid(struct dom_sid *sid)
+{
+	if (!sid) return 0;
+	if (sid->sid_rev_num == 0) return 0;
+	return 8 + 4*sid->num_auths;
+}
+
+/*
+  return the wire size of a security_ace
+*/
+size_t ndr_size_security_ace(struct security_ace *ace)
+{
+	if (!ace) return 0;
+	return 8 + ndr_size_dom_sid(&ace->trustee);
+}
+
+
+/*
+  return the wire size of a security_acl
+*/
+size_t ndr_size_security_acl(struct security_acl *acl)
+{
+	size_t ret;
+	int i;
+	if (!acl) return 0;
+	ret = 8;
+	for (i=0;i<acl->num_aces;i++) {
+		ret += ndr_size_security_ace(&acl->aces[i]);
+	}
+	return ret;
+}
+
+/*
+  return the wire size of a security descriptor
+*/
+size_t ndr_size_security_descriptor(struct security_descriptor *sd)
+{
+	size_t ret;
+	if (!sd) return 0;
+	
+	ret = 20;
+	ret += ndr_size_dom_sid(sd->owner_sid);
+	ret += ndr_size_dom_sid(sd->group_sid);
+	ret += ndr_size_security_acl(sd->dacl);
+	ret += ndr_size_security_acl(sd->sacl);
+	return ret;
+}
+
+/*
+  print a dom_sid
+*/
+void ndr_print_dom_sid(struct ndr_print *ndr, const char *name, struct dom_sid *sid)
+{
+	ndr->print(ndr, "%-25s: %s", name, dom_sid_string(ndr, sid));
+}
+
+void ndr_print_dom_sid2(struct ndr_print *ndr, const char *name, struct dom_sid *sid)
+{
+	ndr_print_dom_sid(ndr, name, sid);
+}
+
+void ndr_print_dom_sid28(struct ndr_print *ndr, const char *name, struct dom_sid *sid)
+{
+	ndr_print_dom_sid(ndr, name, sid);
+}
+
+/*
+  convert a dom_sid to a string
+*/
+char *dom_sid_string(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
+{
+	int i, ofs, maxlen;
+	uint32_t ia;
+	char *ret;
+	
+	if (!sid) {
+		return talloc_strdup(mem_ctx, "(NULL SID)");
+	}
+
+	maxlen = sid->num_auths * 11 + 25;
+	ret = talloc_size(mem_ctx, maxlen);
+	if (!ret) return talloc_strdup(mem_ctx, "(SID ERR)");
+
+	ia = (sid->id_auth[5]) +
+		(sid->id_auth[4] << 8 ) +
+		(sid->id_auth[3] << 16) +
+		(sid->id_auth[2] << 24);
+
+	ofs = snprintf(ret, maxlen, "S-%u-%lu", 
+		       (uint_t)sid->sid_rev_num, (unsigned long)ia);
+
+	for (i = 0; i < sid->num_auths; i++) {
+		ofs += snprintf(ret + ofs, maxlen - ofs, "-%lu", (unsigned long)sid->sub_auths[i]);
+	}
+	
+	return ret;
+}
+