From 154d5f913b4ce60f731227eb1bb3650c45fcde93 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vlendec@samba.org>
Date: Fri, 5 Nov 2004 23:34:00 +0000
Subject: r3566: Completely replace the queryuseraliases call. The previous
 implementation does not exactly match what you would expect.

XP workstations during login actually do this, so we should better become a
bit more correct. The LDAP query issued is not really fully optimal, but it is
a lot faster and more correct than what was there before. The change in
passdb.h makes it possible that queryuseraliases is done with a single ldap
query.

Volker
(This used to be commit 2508d4ed1e16c268fc9f3676b0c6a122e070f93d)
---
 source3/groupdb/mapping.c | 35 +++++++++++++++++++++++++----------
 1 file changed, 25 insertions(+), 10 deletions(-)

(limited to 'source3/groupdb')

diff --git a/source3/groupdb/mapping.c b/source3/groupdb/mapping.c
index 50064415f9..072304ed18 100644
--- a/source3/groupdb/mapping.c
+++ b/source3/groupdb/mapping.c
@@ -496,21 +496,19 @@ static BOOL enum_group_mapping(enum SID_NAME_USE sid_name_use, GROUP_MAP **rmap,
 /* This operation happens on session setup, so it should better be fast. We
  * store a list of aliases a SID is member of hanging off MEMBEROF/SID. */
 
-static NTSTATUS alias_memberships(const DOM_SID *sid, DOM_SID **sids, int *num)
+static NTSTATUS one_alias_membership(const DOM_SID *member,
+				     DOM_SID **sids, int *num)
 {
 	fstring key, string_sid;
 	TDB_DATA kbuf, dbuf;
 	const char *p;
 
-	*num = 0;
-	*sids = NULL;
-
 	if (!init_group_mapping()) {
 		DEBUG(0,("failed to initialize group mapping\n"));
 		return NT_STATUS_ACCESS_DENIED;
 	}
 
-	sid_to_string(string_sid, sid);
+	sid_to_string(string_sid, member);
 	slprintf(key, sizeof(key), "%s%s", MEMBEROF_PREFIX, string_sid);
 
 	kbuf.dsize = strlen(key)+1;
@@ -531,7 +529,7 @@ static NTSTATUS alias_memberships(const DOM_SID *sid, DOM_SID **sids, int *num)
 		if (!string_to_sid(&alias, string_sid))
 			continue;
 
-		add_sid_to_array(&alias, sids, num);
+		add_sid_to_array_unique(&alias, sids, num);
 
 		if (sids == NULL)
 			return NT_STATUS_NO_MEMORY;
@@ -541,6 +539,22 @@ static NTSTATUS alias_memberships(const DOM_SID *sid, DOM_SID **sids, int *num)
 	return NT_STATUS_OK;
 }
 
+static NTSTATUS alias_memberships(const DOM_SID *members, int num_members,
+				  DOM_SID **sids, int *num)
+{
+	int i;
+
+	*num = 0;
+	*sids = NULL;
+
+	for (i=0; i<num_members; i++) {
+		NTSTATUS status = one_alias_membership(&members[i], sids, num);
+		if (!NT_STATUS_IS_OK(status))
+			return status;
+	}
+	return NT_STATUS_OK;
+}
+
 static BOOL is_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 {
 	DOM_SID *sids;
@@ -548,7 +562,7 @@ static BOOL is_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 
 	/* This feels the wrong way round, but the on-disk data structure
 	 * dictates it this way. */
-	if (!NT_STATUS_IS_OK(alias_memberships(member, &sids, &num)))
+	if (!NT_STATUS_IS_OK(alias_memberships(member, 1, &sids, &num)))
 		return False;
 
 	for (i=0; i<num; i++) {
@@ -707,7 +721,7 @@ static NTSTATUS del_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 	pstring key;
 	fstring sid_string;
 
-	result = alias_memberships(member, &sids, &num);
+	result = alias_memberships(member, 1, &sids, &num);
 
 	if (!NT_STATUS_IS_OK(result))
 		return result;
@@ -1343,10 +1357,11 @@ NTSTATUS pdb_default_enum_aliasmem(struct pdb_methods *methods,
 }
 
 NTSTATUS pdb_default_alias_memberships(struct pdb_methods *methods,
-				       const DOM_SID *sid,
+				       const DOM_SID *members,
+				       int num_members,
 				       DOM_SID **aliases, int *num)
 {
-	return alias_memberships(sid, aliases, num);
+	return alias_memberships(members, num_members, aliases, num);
 }
 
 /**********************************************************************
-- 
cgit