netdev - [RFC PATCH 07/24] net: rbridge: Add sysfs for trill

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Date:	Wed, 24 Sep 2014 17:52:03 +0200
From:	Ahmed Amamou <ahmed@...di.net>
To:	netdev@...r.kernel.org
Cc:	william@...di.net, f.cachereul@...halink.fr,
	Ahmed Amamou <ahmed@...di.net>
Subject: [RFC PATCH 07/24] net: rbridge: Add sysfs for trill_state

in order to activate trill port without need for brctl
add a sysfs for trill_state for net_bridge_port

Signed-off-by: Ahmed Amamou <ahmed@...di.net>
Signed-off-by: William Dauchy <william@...di.net>
---
 net/bridge/br_sysfs_if.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index e561cd5..6edc00b 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -137,6 +137,26 @@ static ssize_t show_port_state(struct net_bridge_port *p, char *buf)
 }
 static BRPORT_ATTR(state, S_IRUGO, show_port_state, NULL);
 
+#ifdef CONFIG_TRILL
+static ssize_t show_port_trill_state(struct net_bridge_port *p, char *buf)
+{
+	return sprintf(buf, "%d\n", p->trill_flag);
+}
+static int store_port_trill_state(struct net_bridge_port *p,  unsigned long v)
+{
+	uint8_t val;
+	if (!ns_capable(dev_net(p->dev)->user_ns, CAP_NET_ADMIN))
+		return -EPERM;
+	val = (uint8_t) v;
+	if (val > TRILL_FLAG_TRUNK)
+		return -ERANGE;
+	p->trill_flag = val;
+	return 0;
+}
+static BRPORT_ATTR(trill_state, S_IRUGO | S_IWUSR, show_port_trill_state,
+				   store_port_trill_state);
+#endif
+
 static ssize_t show_message_age_timer(struct net_bridge_port *p,
 					    char *buf)
 {
@@ -198,6 +218,9 @@ static const struct brport_attribute *brport_attrs[] = {
 	&brport_attr_designated_port,
 	&brport_attr_designated_cost,
 	&brport_attr_state,
+#ifdef CONFIG_TRILL
+	&brport_attr_trill_state,
+#endif
 	&brport_attr_change_ack,
 	&brport_attr_config_pending,
 	&brport_attr_message_age_timer,
-- 
1.9.1

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