From: Jeremy Allison <jra@samba.org>
Date: Mon, 19 May 2008 20:11:27 +0000 (-0700)
Subject: Restructuring of code to fix #5460. Remove search
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f1021e4c8d5ace6356c5b2106153288a6eb89a6b;p=thirdparty%2Fsamba.git

Restructuring of code to fix #5460. Remove search
by name code from conn, we were already doing the
same check in the dfs_redirect() function, so move
it into parse_dfs_path() instead.
Jeremy.
---

diff --git a/source/smbd/conn.c b/source/smbd/conn.c
index 97861edba5b..c5a2df47739 100644
--- a/source/smbd/conn.c
+++ b/source/smbd/conn.c
@@ -84,28 +84,6 @@ connection_struct *conn_find(unsigned cnum)
 	return NULL;
 }
 
-/****************************************************************************
- Find a conn given a service name.
-****************************************************************************/
-
-connection_struct *conn_find_byname(const char *service)
-{
-	connection_struct *conn;
-
-	for (conn=Connections;conn;conn=conn->next) {
-		if (strequal(lp_servicename(SNUM(conn)),service)) {
-			if (conn != Connections) {
-				/* Promote if not first. */
-				DLIST_PROMOTE(Connections, conn);
-			}
-			return conn;
-		}
-	}
-
-	return NULL;
-}
-
-
 /****************************************************************************
   find first available connection slot, starting from a random position.
 The randomisation stops problems with the server dieing and clients
diff --git a/source/smbd/msdfs.c b/source/smbd/msdfs.c
index eaa66efffcd..f0dd900be8d 100644
--- a/source/smbd/msdfs.c
+++ b/source/smbd/msdfs.c
@@ -36,13 +36,17 @@ extern uint32 global_client_caps;
  SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES bit and then
  send a local path, we have to cope with that too....
 
+ If conn != NULL then ensure the provided service is
+ the one pointed to by the connection.
+
  This version does everything using pointers within one copy of the
  pathname string, talloced on the struct dfs_path pointer (which
  must be talloced). This may be too clever to live....
  JRA.
 **********************************************************************/
 
-static NTSTATUS parse_dfs_path(const char *pathname,
+static NTSTATUS parse_dfs_path(connection_struct *conn,
+				const char *pathname,
 				bool allow_wcards,
 				struct dfs_path *pdp, /* MUST BE TALLOCED */
 				bool *ppath_contains_wcard)
@@ -136,7 +140,10 @@ static NTSTATUS parse_dfs_path(const char *pathname,
 	}
 
 	/* Is this really our servicename ? */
-	if (NULL == conn_find_byname(servicename)) {
+	if (conn && !( strequal(servicename, lp_servicename(SNUM(conn)))
+			|| (strequal(servicename, HOMES_NAME)
+			&& strequal(lp_servicename(SNUM(conn)),
+				get_current_username()) )) ) {
 		DEBUG(10,("parse_dfs_path: %s is not our servicename\n",
 			servicename));
 
@@ -621,7 +628,7 @@ static NTSTATUS dfs_redirect(TALLOC_CTX *ctx,
 		return NT_STATUS_NO_MEMORY;
 	}
 
-	status = parse_dfs_path(path_in, search_wcard_flag, pdp,
+	status = parse_dfs_path(conn, path_in, search_wcard_flag, pdp,
 			ppath_contains_wcard);
 	if (!NT_STATUS_IS_OK(status)) {
 		TALLOC_FREE(pdp);
@@ -662,17 +669,6 @@ static NTSTATUS dfs_redirect(TALLOC_CTX *ctx,
 		return NT_STATUS_OK;
 	}
 
-	if (!( strequal(pdp->servicename, lp_servicename(SNUM(conn)))
-			|| (strequal(pdp->servicename, HOMES_NAME)
-			&& strequal(lp_servicename(SNUM(conn)),
-				get_current_username()) )) ) {
-
-		/* The given sharename doesn't match this connection. */
-		TALLOC_FREE(pdp);
-
-		return NT_STATUS_OBJECT_PATH_NOT_FOUND;
-	}
-
 	status = dfs_path_lookup(ctx, conn, path_in, pdp,
 			search_wcard_flag, NULL, NULL);
 	if (!NT_STATUS_IS_OK(status)) {
@@ -758,7 +754,7 @@ NTSTATUS get_referred_path(TALLOC_CTX *ctx,
 	ZERO_STRUCT(conns);
 	*self_referralp = False;
 
-	status = parse_dfs_path(dfs_path, False, pdp, &dummy);
+	status = parse_dfs_path(NULL, dfs_path, False, pdp, &dummy);
 	if (!NT_STATUS_IS_OK(status)) {
 		return status;
 	}
@@ -1244,7 +1240,7 @@ bool create_junction(TALLOC_CTX *ctx,
 	if (!pdp) {
 		return False;
 	}
-	status = parse_dfs_path(dfs_path, False, pdp, &dummy);
+	status = parse_dfs_path(NULL, dfs_path, False, pdp, &dummy);
 	if (!NT_STATUS_IS_OK(status)) {
 		return False;
 	}