From 6d8e8898bd6b68dc07305b0e2b1d3e007fa37dfd Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 14 Oct 2008 14:15:21 +0200
Subject: [PATCH] Add support for newlink and dellink callbacks

---
 include/rtnl.h |  4 ++++
 src/rtnl.c     | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 72 insertions(+), 2 deletions(-)

diff --git a/include/rtnl.h b/include/rtnl.h
index 42bd79a..3af6321 100644
--- a/include/rtnl.h
+++ b/include/rtnl.h
@@ -39,6 +39,10 @@ extern "C" {
 struct connman_rtnl {
 	const char *name;
 	int priority;
+	void (*newlink) (unsigned short type, int index,
+					unsigned flags, unsigned change);
+	void (*dellink) (unsigned short type, int index,
+					unsigned flags, unsigned change);
 	void (*link_flags) (int index, short flags);
 };
 
diff --git a/src/rtnl.c b/src/rtnl.c
index 1cc59b6..35fa54b 100644
--- a/src/rtnl.c
+++ b/src/rtnl.c
@@ -86,6 +86,44 @@ void connman_rtnl_unregister(struct connman_rtnl *rtnl)
 	g_static_rw_lock_writer_unlock(&rtnl_lock);
 }
 
+static void process_newlink(unsigned short type, int index,
+					unsigned flags, unsigned change)
+{
+	GSList *list;
+
+	DBG("idex %d", index);
+
+	g_static_rw_lock_reader_lock(&rtnl_lock);
+
+	for (list = rtnl_list; list; list = list->next) {
+		struct connman_rtnl *rtnl = list->data;
+
+		if (rtnl->newlink)
+			rtnl->newlink(type, index, flags, change);
+	}
+
+	g_static_rw_lock_reader_unlock(&rtnl_lock);
+}
+
+static void process_dellink(unsigned short type, int index,
+					unsigned flags, unsigned change)
+{
+	GSList *list;
+
+	DBG("idex %d", index);
+
+	g_static_rw_lock_reader_lock(&rtnl_lock);
+
+	for (list = rtnl_list; list; list = list->next) {
+		struct connman_rtnl *rtnl = list->data;
+
+		if (rtnl->dellink)
+			rtnl->dellink(type, index, flags, change);
+	}
+
+	g_static_rw_lock_reader_unlock(&rtnl_lock);
+}
+
 static void process_link_flags(int index, short flags)
 {
 	GSList *list;
@@ -210,6 +248,34 @@ static void rtnl_link(struct nlmsghdr *hdr)
 	process_link_flags(msg->ifi_index, msg->ifi_flags);
 }
 
+static void rtnl_newlink(struct nlmsghdr *hdr)
+{
+	struct ifinfomsg *msg;
+
+	msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
+
+	DBG("ifi_index %d ifi_flags 0x%04x", msg->ifi_index, msg->ifi_flags);
+
+	process_newlink(msg->ifi_type, msg->ifi_index,
+					msg->ifi_flags, msg->ifi_change);
+
+	rtnl_link(hdr);
+}
+
+static void rtnl_dellink(struct nlmsghdr *hdr)
+{
+	struct ifinfomsg *msg;
+
+	msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
+
+	DBG("ifi_index %d ifi_flags 0x%04x", msg->ifi_index, msg->ifi_flags);
+
+	process_dellink(msg->ifi_type, msg->ifi_index,
+					msg->ifi_flags, msg->ifi_change);
+
+	rtnl_link(hdr);
+}
+
 static void rtnl_addr(struct nlmsghdr *hdr)
 {
 	struct ifaddrmsg *msg;
@@ -332,11 +398,11 @@ static void rtnl_message(void *buf, size_t len)
 			return;
 		case RTM_NEWLINK:
 			DBG("NEWLINK");
-			rtnl_link(hdr);
+			rtnl_newlink(hdr);
 			break;
 		case RTM_DELLINK:
 			DBG("DELLINK");
-			rtnl_link(hdr);
+			rtnl_dellink(hdr);
 			break;
 		case RTM_NEWADDR:
 			DBG("NEWADDR");
-- 
2.7.4