aboutsummaryrefslogtreecommitdiffstats
path: root/net/hsr/hsr_netlink.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/hsr/hsr_netlink.c')
-rw-r--r--net/hsr/hsr_netlink.c102
1 files changed, 65 insertions, 37 deletions
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 01a5261ac7a5..a2c7e4c0ac1e 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -1,4 +1,4 @@
-/* Copyright 2011-2013 Autronica Fire and Security AS
+/* Copyright 2011-2014 Autronica Fire and Security AS
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
@@ -6,7 +6,7 @@
* any later version.
*
* Author(s):
- * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ * 2011-2014 Arvid Brodin, arvid.brodin@alten.se
*
* Routines for handling Netlink messages for HSR.
*/
@@ -37,13 +37,17 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev,
struct net_device *link[2];
unsigned char multicast_spec;
+ if (!data) {
+ netdev_info(dev, "HSR: No slave devices specified\n");
+ return -EINVAL;
+ }
if (!data[IFLA_HSR_SLAVE1]) {
- netdev_info(dev, "IFLA_HSR_SLAVE1 missing!\n");
+ netdev_info(dev, "HSR: Slave1 device not specified\n");
return -EINVAL;
}
link[0] = __dev_get_by_index(src_net, nla_get_u32(data[IFLA_HSR_SLAVE1]));
if (!data[IFLA_HSR_SLAVE2]) {
- netdev_info(dev, "IFLA_HSR_SLAVE2 missing!\n");
+ netdev_info(dev, "HSR: Slave2 device not specified\n");
return -EINVAL;
}
link[1] = __dev_get_by_index(src_net, nla_get_u32(data[IFLA_HSR_SLAVE2]));
@@ -63,21 +67,33 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev,
static int hsr_fill_info(struct sk_buff *skb, const struct net_device *dev)
{
- struct hsr_priv *hsr_priv;
+ struct hsr_priv *hsr;
+ struct hsr_port *port;
+ int res;
- hsr_priv = netdev_priv(dev);
+ hsr = netdev_priv(dev);
- if (hsr_priv->slave[0])
- if (nla_put_u32(skb, IFLA_HSR_SLAVE1, hsr_priv->slave[0]->ifindex))
- goto nla_put_failure;
+ res = 0;
- if (hsr_priv->slave[1])
- if (nla_put_u32(skb, IFLA_HSR_SLAVE2, hsr_priv->slave[1]->ifindex))
- goto nla_put_failure;
+ rcu_read_lock();
+ port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_A);
+ if (port)
+ res = nla_put_u32(skb, IFLA_HSR_SLAVE1, port->dev->ifindex);
+ rcu_read_unlock();
+ if (res)
+ goto nla_put_failure;
+
+ rcu_read_lock();
+ port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_B);
+ if (port)
+ res = nla_put_u32(skb, IFLA_HSR_SLAVE2, port->dev->ifindex);
+ rcu_read_unlock();
+ if (res)
+ goto nla_put_failure;
if (nla_put(skb, IFLA_HSR_SUPERVISION_ADDR, ETH_ALEN,
- hsr_priv->sup_multicast_addr) ||
- nla_put_u16(skb, IFLA_HSR_SEQ_NR, hsr_priv->sequence_nr))
+ hsr->sup_multicast_addr) ||
+ nla_put_u16(skb, IFLA_HSR_SEQ_NR, hsr->sequence_nr))
goto nla_put_failure;
return 0;
@@ -128,13 +144,13 @@ static const struct genl_multicast_group hsr_mcgrps[] = {
* over one of the slave interfaces. This would indicate an open network ring
* (i.e. a link has failed somewhere).
*/
-void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN],
- enum hsr_dev_idx dev_idx)
+void hsr_nl_ringerror(struct hsr_priv *hsr, unsigned char addr[ETH_ALEN],
+ struct hsr_port *port)
{
struct sk_buff *skb;
void *msg_head;
+ struct hsr_port *master;
int res;
- int ifindex;
skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
if (!skb)
@@ -148,11 +164,7 @@ void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN],
if (res < 0)
goto nla_put_failure;
- if (hsr_priv->slave[dev_idx])
- ifindex = hsr_priv->slave[dev_idx]->ifindex;
- else
- ifindex = -1;
- res = nla_put_u32(skb, HSR_A_IFINDEX, ifindex);
+ res = nla_put_u32(skb, HSR_A_IFINDEX, port->dev->ifindex);
if (res < 0)
goto nla_put_failure;
@@ -165,16 +177,20 @@ nla_put_failure:
kfree_skb(skb);
fail:
- netdev_warn(hsr_priv->dev, "Could not send HSR ring error message\n");
+ rcu_read_lock();
+ master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
+ netdev_warn(master->dev, "Could not send HSR ring error message\n");
+ rcu_read_unlock();
}
/* This is called when we haven't heard from the node with MAC address addr for
* some time (just before the node is removed from the node table/list).
*/
-void hsr_nl_nodedown(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN])
+void hsr_nl_nodedown(struct hsr_priv *hsr, unsigned char addr[ETH_ALEN])
{
struct sk_buff *skb;
void *msg_head;
+ struct hsr_port *master;
int res;
skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
@@ -199,7 +215,10 @@ nla_put_failure:
kfree_skb(skb);
fail:
- netdev_warn(hsr_priv->dev, "Could not send HSR node down\n");
+ rcu_read_lock();
+ master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
+ netdev_warn(master->dev, "Could not send HSR node down\n");
+ rcu_read_unlock();
}
@@ -220,7 +239,8 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info)
/* For sending */
struct sk_buff *skb_out;
void *msg_head;
- struct hsr_priv *hsr_priv;
+ struct hsr_priv *hsr;
+ struct hsr_port *port;
unsigned char hsr_node_addr_b[ETH_ALEN];
int hsr_node_if1_age;
u16 hsr_node_if1_seq;
@@ -267,8 +287,8 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info)
if (res < 0)
goto nla_put_failure;
- hsr_priv = netdev_priv(hsr_dev);
- res = hsr_get_node_data(hsr_priv,
+ hsr = netdev_priv(hsr_dev);
+ res = hsr_get_node_data(hsr,
(unsigned char *) nla_data(info->attrs[HSR_A_NODE_ADDR]),
hsr_node_addr_b,
&addr_b_ifindex,
@@ -301,9 +321,12 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info)
res = nla_put_u16(skb_out, HSR_A_IF1_SEQ, hsr_node_if1_seq);
if (res < 0)
goto nla_put_failure;
- if (hsr_priv->slave[0])
+ rcu_read_lock();
+ port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_A);
+ if (port)
res = nla_put_u32(skb_out, HSR_A_IF1_IFINDEX,
- hsr_priv->slave[0]->ifindex);
+ port->dev->ifindex);
+ rcu_read_unlock();
if (res < 0)
goto nla_put_failure;
@@ -313,9 +336,14 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info)
res = nla_put_u16(skb_out, HSR_A_IF2_SEQ, hsr_node_if2_seq);
if (res < 0)
goto nla_put_failure;
- if (hsr_priv->slave[1])
+ rcu_read_lock();
+ port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_B);
+ if (port)
res = nla_put_u32(skb_out, HSR_A_IF2_IFINDEX,
- hsr_priv->slave[1]->ifindex);
+ port->dev->ifindex);
+ rcu_read_unlock();
+ if (res < 0)
+ goto nla_put_failure;
genlmsg_end(skb_out, msg_head);
genlmsg_unicast(genl_info_net(info), skb_out, info->snd_portid);
@@ -334,7 +362,7 @@ fail:
return res;
}
-/* Get a list of MacAddressA of all nodes known to this node (other than self).
+/* Get a list of MacAddressA of all nodes known to this node (including self).
*/
static int hsr_get_node_list(struct sk_buff *skb_in, struct genl_info *info)
{
@@ -345,7 +373,7 @@ static int hsr_get_node_list(struct sk_buff *skb_in, struct genl_info *info)
/* For sending */
struct sk_buff *skb_out;
void *msg_head;
- struct hsr_priv *hsr_priv;
+ struct hsr_priv *hsr;
void *pos;
unsigned char addr[ETH_ALEN];
int res;
@@ -385,17 +413,17 @@ static int hsr_get_node_list(struct sk_buff *skb_in, struct genl_info *info)
if (res < 0)
goto nla_put_failure;
- hsr_priv = netdev_priv(hsr_dev);
+ hsr = netdev_priv(hsr_dev);
rcu_read_lock();
- pos = hsr_get_next_node(hsr_priv, NULL, addr);
+ pos = hsr_get_next_node(hsr, NULL, addr);
while (pos) {
res = nla_put(skb_out, HSR_A_NODE_ADDR, ETH_ALEN, addr);
if (res < 0) {
rcu_read_unlock();
goto nla_put_failure;
}
- pos = hsr_get_next_node(hsr_priv, pos, addr);
+ pos = hsr_get_next_node(hsr, pos, addr);
}
rcu_read_unlock();
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.