From 14921d074bd7f6d47bce8ad955baf088446e64ac Mon Sep 17 00:00:00 2001
From: Sam Leffler <sleffler@google.com>
Date: Mon, 19 Oct 2009 10:52:59 -0700
Subject: [PATCH] Fix command line options for device filtering

Also re-implement -I option to filter devices discovered through netlink.
---
 src/connman.h  |  2 ++
 src/element.c  | 29 ++++++++++++++++++++++-------
 src/inet.c     |  8 +++++++-
 src/ipconfig.c | 15 +++++++++++++--
 4 files changed, 44 insertions(+), 10 deletions(-)

diff --git a/src/connman.h b/src/connman.h
index 5eee390..1fad19b 100644
--- a/src/connman.h
+++ b/src/connman.h
@@ -223,6 +223,8 @@ int __connman_element_append_ipv4(struct connman_element *element,
 int __connman_element_set_ipv4(struct connman_element *element,
 				const char *name, DBusMessageIter *value);
 
+gboolean __connman_element_device_isfiltered(const char *devname);
+
 int __connman_ipv4_init(void);
 void __connman_ipv4_cleanup(void);
 
diff --git a/src/element.c b/src/element.c
index 430242f..c8ca76e 100644
--- a/src/element.c
+++ b/src/element.c
@@ -37,6 +37,7 @@ static DBusConnection *connection;
 static GNode *element_root = NULL;
 static GSList *driver_list = NULL;
 static gchar *device_filter = NULL;
+static gchar *nodevice_filter = NULL;
 
 static gboolean started = FALSE;
 
@@ -1371,6 +1372,21 @@ static void register_element(gpointer data, gpointer user_data)
 	probe_element(element);
 }
 
+gboolean __connman_element_device_isfiltered(const char *devname)
+{
+	if (device_filter != NULL &&
+			g_pattern_match_simple(device_filter, devname) == FALSE) {
+		DBG("ignoring device %s (no match)", devname);
+		return TRUE;
+	}
+	if (nodevice_filter != NULL &&
+			g_pattern_match_simple(nodevice_filter, devname) == TRUE) {
+		DBG("ignoring device %s (match no)", devname);
+		return TRUE;
+	}
+	return FALSE;
+}
+
 /**
  * connman_element_register:
  * @element: the element to register
@@ -1389,13 +1405,10 @@ int connman_element_register(struct connman_element *element,
 	if (element->devname == NULL)
 		element->devname = g_strdup(element->name);
 
-	if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE) {
-		if (g_pattern_match_simple(device_filter,
-						element->devname) == FALSE) {
-			DBG("ignoring %s [%s] device", element->name,
-							element->devname);
-			return -EPERM;
-		}
+	if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
+			__connman_element_device_isfiltered(element->devname) == TRUE) {
+		DBG("ignoring %s [%s] device", element->name, element->devname);
+		return -EPERM;
 	}
 
 	if (connman_element_ref(element) == NULL)
@@ -1580,6 +1593,7 @@ int __connman_element_init(const char *device, const char *nodevice)
 		return -EIO;
 
 	device_filter = g_strdup(device);
+	nodevice_filter = g_strdup(nodevice);
 
 	element = connman_element_create("root");
 
@@ -1692,6 +1706,7 @@ void __connman_element_cleanup(void)
 	g_node_destroy(element_root);
 	element_root = NULL;
 
+	g_free(nodevice_filter);
 	g_free(device_filter);
 
 	if (connection == NULL)
diff --git a/src/inet.c b/src/inet.c
index 4ced09b..7f4d139 100644
--- a/src/inet.c
+++ b/src/inet.c
@@ -441,6 +441,11 @@ struct connman_device *connman_inet_create_device(int index)
 	devname = connman_inet_ifname(index);
 	if (devname == NULL)
 		return NULL;
+	if (__connman_element_device_isfiltered(devname) == TRUE) {
+		connman_info("Ignoring network interface %s (filtered)",
+		    devname);
+		return NULL;
+	}
 
 	__connman_udev_get_devtype(devname);
 
@@ -448,7 +453,8 @@ struct connman_device *connman_inet_create_device(int index)
 
 	switch (type) {
 	case CONNMAN_DEVICE_TYPE_UNKNOWN:
-		connman_info("Ignoring network interface %s", devname);
+		connman_info("Ignoring network interface %s (type unknown)",
+		    devname);
 		g_free(devname);
 		return NULL;
 	case CONNMAN_DEVICE_TYPE_ETHERNET:
diff --git a/src/ipconfig.c b/src/ipconfig.c
index edbdb3e..c18d36b 100644
--- a/src/ipconfig.c
+++ b/src/ipconfig.c
@@ -292,6 +292,7 @@ void __connman_ipconfig_newlink(int index, unsigned short type,
 	GString *str;
 	gboolean up = FALSE, down = FALSE;
 	gboolean lower_up = FALSE, lower_down = FALSE;
+	char *ifname;
 
 	DBG("index %d", index);
 
@@ -302,12 +303,22 @@ void __connman_ipconfig_newlink(int index, unsigned short type,
 	if (ipdevice != NULL)
 		goto update;
 
+	ifname = connman_inet_ifname(index);
+	if (__connman_element_device_isfiltered(ifname) == TRUE) {
+		connman_info("Ignoring network interface %s (filtered)",
+		    ifname);
+		g_free(ifname);
+		return;
+	}
+
 	ipdevice = g_try_new0(struct connman_ipdevice, 1);
-	if (ipdevice == NULL)
+	if (ipdevice == NULL) {
+		g_free(ifname);
 		return;
+	}
 
 	ipdevice->index = index;
-	ipdevice->ifname = connman_inet_ifname(index);
+	ipdevice->ifname = ifname;
 	ipdevice->type = type;
 
 	g_hash_table_insert(ipdevice_hash, GINT_TO_POINTER(index), ipdevice);
-- 
2.7.4