netdev - [RFC PATCH net-next v2 1/5] rtnl: add a new type of msg to advertise protocol configuration

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Date:	Wed, 24 Oct 2012 18:02:55 +0200
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, Nicolas Dichtel <nicolas.dichtel@...nd.com>
Subject: [RFC PATCH net-next v2 1/5] rtnl: add a new type of msg to advertise protocol configuration

A new type is added to allow userland to monitor protocol configuration, like
IPv4 or IPv6.
For example, monitoring the state of the forwarding status of an interface of
the system.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
---
 include/uapi/linux/netconf.h   | 22 ++++++++++++++++++++++
 include/uapi/linux/rtnetlink.h |  5 +++++
 2 files changed, 27 insertions(+)
 create mode 100644 include/uapi/linux/netconf.h

diff --git a/include/uapi/linux/netconf.h b/include/uapi/linux/netconf.h
new file mode 100644
index 0000000..d051372
--- /dev/null
+++ b/include/uapi/linux/netconf.h
@@ -0,0 +1,22 @@
+#ifndef _UAPI_LINUX_NETCONF_H_
+#define _UAPI_LINUX_NETCONF_H_
+
+#include <linux/types.h>
+#include <linux/netlink.h>
+
+struct netconfmsg {
+	__u8	ncm_family;
+};
+
+enum {
+	NETCONFA_UNSPEC,
+	NETCONFA_IFINDEX,
+	NETCONFA_FORWARDING,
+	__NETCONFA_MAX
+};
+#define NETCONFA_MAX	(__NETCONFA_MAX - 1)
+
+#define NETCONFA_IFINDEX_ALL		-1
+#define NETCONFA_IFINDEX_DEFAULT	-2
+
+#endif /* _UAPI_LINUX_NETCONF_H_ */
diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
index fcd768b..0043b41 100644
--- a/include/uapi/linux/rtnetlink.h
+++ b/include/uapi/linux/rtnetlink.h
@@ -120,6 +120,11 @@ enum {
 	RTM_SETDCB,
 #define RTM_SETDCB RTM_SETDCB
 
+	RTM_NEWNETCONF = 80,
+#define RTM_NEWNETCONF RTM_NEWNETCONF
+	RTM_GETNETCONF = 82,
+#define RTM_GETNETCONF RTM_GETNETCONF
+
 	__RTM_MAX,
 #define RTM_MAX		(((__RTM_MAX + 3) & ~3) - 1)
 };
-- 
1.7.12

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