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Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_device.c2
-rw-r--r--net/bridge/br_fdb.c1
-rw-r--r--net/bridge/br_forward.c19
-rw-r--r--net/bridge/br_if.c1
-rw-r--r--net/bridge/br_input.c5
-rw-r--r--net/bridge/br_ioctl.c1
-rw-r--r--net/bridge/br_multicast.c28
-rw-r--r--net/bridge/br_netfilter.c1
-rw-r--r--net/bridge/br_netlink.c1
-rw-r--r--net/bridge/br_private.h10
-rw-r--r--net/bridge/br_stp_bpdu.c1
-rw-r--r--net/bridge/netfilter/ebt_ulog.c1
-rw-r--r--net/bridge/netfilter/ebtables.c1
13 files changed, 51 insertions, 21 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index eb7062d2e9e5..90a9024e5c1e 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -40,7 +40,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
goto out;
mdst = br_mdb_get(br, skb);
- if (mdst || BR_INPUT_SKB_CB(skb)->mrouters_only)
+ if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb))
br_multicast_deliver(mdst, skb);
else
br_flood_deliver(br, skb);
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 3b8e038ab32c..9101a4e56201 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -20,6 +20,7 @@
#include <linux/etherdevice.h>
#include <linux/jhash.h>
#include <linux/random.h>
+#include <linux/slab.h>
#include <asm/atomic.h>
#include <asm/unaligned.h>
#include "br_private.h"
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index d61e6f741125..7a241c396981 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -12,6 +12,7 @@
*/
#include <linux/err.h>
+#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
@@ -19,6 +20,11 @@
#include <linux/netfilter_bridge.h>
#include "br_private.h"
+static int deliver_clone(const struct net_bridge_port *prev,
+ struct sk_buff *skb,
+ void (*__packet_hook)(const struct net_bridge_port *p,
+ struct sk_buff *skb));
+
/* Don't forward packets to originating port or forwarding diasabled */
static inline int should_deliver(const struct net_bridge_port *p,
const struct sk_buff *skb)
@@ -94,17 +100,22 @@ void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb)
}
/* called with rcu_read_lock */
-void br_forward(const struct net_bridge_port *to, struct sk_buff *skb)
+void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, struct sk_buff *skb0)
{
if (should_deliver(to, skb)) {
- __br_forward(to, skb);
+ if (skb0)
+ deliver_clone(to, skb, __br_forward);
+ else
+ __br_forward(to, skb);
return;
}
- kfree_skb(skb);
+ if (!skb0)
+ kfree_skb(skb);
}
-static int deliver_clone(struct net_bridge_port *prev, struct sk_buff *skb,
+static int deliver_clone(const struct net_bridge_port *prev,
+ struct sk_buff *skb,
void (*__packet_hook)(const struct net_bridge_port *p,
struct sk_buff *skb))
{
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index b6a3872f5681..0b6b1f2ff7ac 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/rtnetlink.h>
#include <linux/if_ether.h>
+#include <linux/slab.h>
#include <net/sock.h>
#include "br_private.h"
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 53b39851d87d..a82dde2d2ead 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -11,6 +11,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
@@ -70,7 +71,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
if (is_multicast_ether_addr(dest)) {
mdst = br_mdb_get(br, skb);
- if (mdst || BR_INPUT_SKB_CB(skb)->mrouters_only) {
+ if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) {
if ((mdst && !hlist_unhashed(&mdst->mglist)) ||
br_multicast_is_router(br))
skb2 = skb;
@@ -90,7 +91,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
if (skb) {
if (dst)
- br_forward(dst->dst, skb);
+ br_forward(dst->dst, skb, skb2);
else
br_flood_forward(br, skb, skb2);
}
diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index 2af6e4a90262..995afc4b04dc 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/if_bridge.h>
#include <linux/netdevice.h>
+#include <linux/slab.h>
#include <linux/times.h>
#include <net/net_namespace.h>
#include <asm/uaccess.h>
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index fd96a8dc97f4..eaa0e1bae49b 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -49,22 +49,23 @@ static struct net_bridge_mdb_entry *__br_mdb_ip_get(
static struct net_bridge_mdb_entry *br_mdb_ip_get(
struct net_bridge_mdb_htable *mdb, __be32 dst)
{
+ if (!mdb)
+ return NULL;
+
return __br_mdb_ip_get(mdb, dst, br_ip_hash(mdb, dst));
}
struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
struct sk_buff *skb)
{
- struct net_bridge_mdb_htable *mdb = br->mdb;
-
- if (!mdb || br->multicast_disabled)
+ if (br->multicast_disabled)
return NULL;
switch (skb->protocol) {
case htons(ETH_P_IP):
if (BR_INPUT_SKB_CB(skb)->igmp)
break;
- return br_mdb_ip_get(mdb, ip_hdr(skb)->daddr);
+ return br_mdb_ip_get(br->mdb, ip_hdr(skb)->daddr);
}
return NULL;
@@ -722,11 +723,11 @@ static int br_multicast_igmp3_report(struct net_bridge *br,
if (!pskb_may_pull(skb, len))
return -EINVAL;
- grec = (void *)(skb->data + len);
+ grec = (void *)(skb->data + len - sizeof(*grec));
group = grec->grec_mca;
type = grec->grec_type;
- len += grec->grec_nsrcs * 4;
+ len += ntohs(grec->grec_nsrcs) * 4;
if (!pskb_may_pull(skb, len))
return -EINVAL;
@@ -851,8 +852,8 @@ static int br_multicast_query(struct net_bridge *br,
if (ih3->nsrcs)
goto out;
- max_delay = ih3->code ? 1 :
- IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE);
+ max_delay = ih3->code ?
+ IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE) : 1;
}
if (!group)
@@ -956,9 +957,6 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
unsigned offset;
int err;
- BR_INPUT_SKB_CB(skb)->igmp = 0;
- BR_INPUT_SKB_CB(skb)->mrouters_only = 0;
-
/* We treat OOM as packet loss for now. */
if (!pskb_may_pull(skb, sizeof(*iph)))
return -EINVAL;
@@ -990,7 +988,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
err = pskb_trim_rcsum(skb2, len);
if (err)
- return err;
+ goto err_out;
}
len -= ip_hdrlen(skb2);
@@ -1012,7 +1010,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
case CHECKSUM_NONE:
skb2->csum = 0;
if (skb_checksum_complete(skb2))
- return -EINVAL;
+ goto out;
}
err = 0;
@@ -1039,6 +1037,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
out:
__skb_push(skb2, offset);
+err_out:
if (skb2 != skb)
kfree_skb(skb2);
return err;
@@ -1047,6 +1046,9 @@ out:
int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
struct sk_buff *skb)
{
+ BR_INPUT_SKB_CB(skb)->igmp = 0;
+ BR_INPUT_SKB_CB(skb)->mrouters_only = 0;
+
if (br->multicast_disabled)
return 0;
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 268e2e725888..4c4977d12fd6 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -23,6 +23,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <linux/ip.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index fcffb3fb1177..aa56ac2c8829 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -11,6 +11,7 @@
*/
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <net/rtnetlink.h>
#include <net/net_namespace.h>
#include <net/sock.h>
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index fef0384e3c0b..846d7d1e2075 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -206,12 +206,20 @@ struct net_bridge
struct br_input_skb_cb {
struct net_device *brdev;
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
int igmp;
int mrouters_only;
+#endif
};
#define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb)
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only)
+#else
+# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0)
+#endif
+
extern struct notifier_block br_device_notifier;
extern const u8 br_group_address[ETH_ALEN];
@@ -252,7 +260,7 @@ extern void br_deliver(const struct net_bridge_port *to,
struct sk_buff *skb);
extern int br_dev_queue_push_xmit(struct sk_buff *skb);
extern void br_forward(const struct net_bridge_port *to,
- struct sk_buff *skb);
+ struct sk_buff *skb, struct sk_buff *skb0);
extern int br_forward_finish(struct sk_buff *skb);
extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb);
extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index 81ae40b3f655..d66cce11f3bf 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -15,6 +15,7 @@
#include <linux/netfilter_bridge.h>
#include <linux/etherdevice.h>
#include <linux/llc.h>
+#include <linux/slab.h>
#include <net/net_namespace.h>
#include <net/llc.h>
#include <net/llc_pdu.h>
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index c6ac657074a6..f9560f3dbdc7 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -29,6 +29,7 @@
*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/socket.h>
#include <linux/skbuff.h>
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index dfb58056a89a..f0865fd1e3ec 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -23,6 +23,7 @@
#include <linux/netfilter_bridge/ebtables.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <linux/smp.h>
#include <linux/cpumask.h>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-16 01:33:15 +0300