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-rw-r--r--net/bridge/br.c2
-rw-r--r--net/bridge/br_if.c4
-rw-r--r--net/bridge/br_ioctl.c2
-rw-r--r--net/bridge/br_netlink.c58
-rw-r--r--net/bridge/br_private.h3
-rw-r--r--net/bridge/br_stp.c6
-rw-r--r--net/bridge/br_stp_if.c4
-rw-r--r--net/bridge/br_stp_timer.c2
-rw-r--r--net/bridge/br_sysfs_if.c2
9 files changed, 45 insertions, 38 deletions
diff --git a/net/bridge/br.c b/net/bridge/br.c
index 1407d1ba7577..6bf06e756df2 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -112,7 +112,7 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
/* Events that may cause spanning tree to refresh */
if (event == NETDEV_CHANGEADDR || event == NETDEV_UP ||
event == NETDEV_CHANGE || event == NETDEV_DOWN)
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
return NOTIFY_DONE;
}
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index ae38547bbf91..9ba4ed65c52b 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -271,7 +271,7 @@ static void del_nbp(struct net_bridge_port *p)
br_stp_disable_port(p);
spin_unlock_bh(&br->lock);
- br_ifinfo_notify(RTM_DELLINK, p);
+ br_ifinfo_notify(RTM_DELLINK, NULL, p);
list_del_rcu(&p->list);
if (netdev_get_fwd_headroom(dev) == br->dev->needed_headroom)
@@ -589,7 +589,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev,
br_stp_enable_port(p);
spin_unlock_bh(&br->lock);
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
if (changed_addr)
call_netdevice_notifiers(NETDEV_CHANGEADDR, br->dev);
diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index 16d01a3ff33f..73b957fd639d 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -293,7 +293,7 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
if (!ret) {
if (p)
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
else
netdev_state_change(br->dev);
}
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 26aeb0b5cf30..67bae0f11c67 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -361,14 +361,14 @@ nla_put_failure:
* Contains port and master info as well as carrier and bridge state.
*/
static int br_fill_ifinfo(struct sk_buff *skb,
- struct net_bridge_port *port,
+ const struct net_bridge_port *port,
u32 pid, u32 seq, int event, unsigned int flags,
u32 filter_mask, const struct net_device *dev)
{
+ u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
struct net_bridge *br;
struct ifinfomsg *hdr;
struct nlmsghdr *nlh;
- u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
if (port)
br = port->br;
@@ -454,28 +454,36 @@ nla_put_failure:
return -EMSGSIZE;
}
-/*
- * Notify listeners of a change in port information
- */
-void br_ifinfo_notify(int event, struct net_bridge_port *port)
+/* Notify listeners of a change in bridge or port information */
+void br_ifinfo_notify(int event, const struct net_bridge *br,
+ const struct net_bridge_port *port)
{
- struct net *net;
+ u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
+ struct net_device *dev;
struct sk_buff *skb;
int err = -ENOBUFS;
- u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
+ struct net *net;
+ u16 port_no = 0;
- if (!port)
+ if (WARN_ON(!port && !br))
return;
- net = dev_net(port->dev);
- br_debug(port->br, "port %u(%s) event %d\n",
- (unsigned int)port->port_no, port->dev->name, event);
+ if (port) {
+ dev = port->dev;
+ br = port->br;
+ port_no = port->port_no;
+ } else {
+ dev = br->dev;
+ }
+
+ net = dev_net(dev);
+ br_debug(br, "port %u(%s) event %d\n", port_no, dev->name, event);
- skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC);
+ skb = nlmsg_new(br_nlmsg_size(dev, filter), GFP_ATOMIC);
if (skb == NULL)
goto errout;
- err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev);
+ err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, dev);
if (err < 0) {
/* -EMSGSIZE implies BUG in br_nlmsg_size() */
WARN_ON(err == -EMSGSIZE);
@@ -488,7 +496,6 @@ errout:
rtnl_set_sk_err(net, RTNLGRP_LINK, err);
}
-
/*
* Dump information about all ports, in response to GETLINK
*/
@@ -809,10 +816,11 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
/* Change state and parameters on port. */
int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
{
+ struct net_bridge *br = (struct net_bridge *)netdev_priv(dev);
+ struct nlattr *tb[IFLA_BRPORT_MAX + 1];
+ struct net_bridge_port *p;
struct nlattr *protinfo;
struct nlattr *afspec;
- struct net_bridge_port *p;
- struct nlattr *tb[IFLA_BRPORT_MAX + 1];
bool changed = false;
int err = 0;
@@ -852,13 +860,11 @@ int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
changed = true;
}
- if (afspec) {
- err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
- afspec, RTM_SETLINK, &changed);
- }
+ if (afspec)
+ err = br_afspec(br, p, afspec, RTM_SETLINK, &changed);
if (changed)
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, br, p);
out:
return err;
}
@@ -866,8 +872,9 @@ out:
/* Delete port information */
int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
{
- struct nlattr *afspec;
+ struct net_bridge *br = (struct net_bridge *)netdev_priv(dev);
struct net_bridge_port *p;
+ struct nlattr *afspec;
bool changed = false;
int err = 0;
@@ -880,13 +887,12 @@ int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
if (!p && !(dev->priv_flags & IFF_EBRIDGE))
return -EINVAL;
- err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
- afspec, RTM_DELLINK, &changed);
+ err = br_afspec(br, p, afspec, RTM_DELLINK, &changed);
if (changed)
/* Send RTM_NEWLINK because userspace
* expects RTM_NEWLINK for vlan dels
*/
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, br, p);
return err;
}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 860e4afaf71a..40553d832b6e 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -1071,7 +1071,8 @@ extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr)
extern struct rtnl_link_ops br_link_ops;
int br_netlink_init(void);
void br_netlink_fini(void);
-void br_ifinfo_notify(int event, struct net_bridge_port *port);
+void br_ifinfo_notify(int event, const struct net_bridge *br,
+ const struct net_bridge_port *port);
int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags);
int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags);
int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev,
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 8f56c2d1f1a7..b6941961a876 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -123,7 +123,7 @@ static void br_root_port_block(const struct net_bridge *br,
(unsigned int) p->port_no, p->dev->name);
br_set_state(p, BR_STATE_LISTENING);
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
if (br->forward_delay > 0)
mod_timer(&p->forward_delay_timer, jiffies + br->forward_delay);
@@ -403,7 +403,7 @@ static void br_make_blocking(struct net_bridge_port *p)
br_topology_change_detection(p->br);
br_set_state(p, BR_STATE_BLOCKING);
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
del_timer(&p->forward_delay_timer);
}
@@ -426,7 +426,7 @@ static void br_make_forwarding(struct net_bridge_port *p)
else
br_set_state(p, BR_STATE_LEARNING);
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
if (br->forward_delay != 0)
mod_timer(&p->forward_delay_timer, jiffies + br->forward_delay);
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 89110319ef0f..808e2b914015 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -96,7 +96,7 @@ void br_stp_enable_port(struct net_bridge_port *p)
{
br_init_port(p);
br_port_state_selection(p->br);
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
}
/* called under bridge lock */
@@ -111,7 +111,7 @@ void br_stp_disable_port(struct net_bridge_port *p)
p->topology_change_ack = 0;
p->config_pending = 0;
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
del_timer(&p->message_age_timer);
del_timer(&p->forward_delay_timer);
diff --git a/net/bridge/br_stp_timer.c b/net/bridge/br_stp_timer.c
index 60b6fe277a8b..b54c1a331450 100644
--- a/net/bridge/br_stp_timer.c
+++ b/net/bridge/br_stp_timer.c
@@ -99,7 +99,7 @@ static void br_forward_delay_timer_expired(unsigned long arg)
netif_carrier_on(br->dev);
}
rcu_read_lock();
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
rcu_read_unlock();
spin_unlock(&br->lock);
}
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 0a1fa9ccd8b7..0254c35b2bf0 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -280,7 +280,7 @@ static ssize_t brport_store(struct kobject *kobj,
ret = brport_attr->store(p, val);
spin_unlock_bh(&p->br->lock);
if (!ret) {
- br_ifinfo_notify(RTM_NEWLINK, p);
+ br_ifinfo_notify(RTM_NEWLINK, NULL, p);
ret = count;
}
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.