Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 00/15] net: bridge: multicast: add vlan support
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Hi all,
This patchset adds initial per-vlan multicast support, most of the code
deals with moving to multicast context pointers from bridge/port pointers.
That allows us to switch them with the per-vlan contexts when a multicast
packet is being processed and vlan multicast snooping has been enabled.
That is controlled by a global bridge option added in patch 06 which is
off by default (BR_BOOLOPT_MCAST_VLAN_SNOOPING). It is important to note
that this option can change only under RTNL and doesn't require
multicast_lock, so we need to be careful when retrieving mcast contexts
in parallel. For packet processing they are switched only once in
br_multicast_rcv() and then used until the packet has been processed.
For the most part we need these contexts only to read config values and
check if they are disabled. The global mcast state which is maintained
consists of querier and router timers, the rest are config options.
The port mcast state which is maintained consists of query timer and
link to router port list if it's ever marked as a router port. Port
multicast contexts _must_ be used only with their respective global
contexts, that is a bridge port's mcast context must be used only with
bridge's global mcast context and a vlan/port's mcast context must be
used only with that vlan's global mcast context due to the router port
lists. This way a bridge port can be marked as a router in multiple
vlans, but might not be a router in some other vlan. Also this allows us
to have per-vlan querier elections, per-vlan queries and basically the
whole multicast state becomes per-vlan when the option is enabled.
One of the hardest parts is synchronization with vlan's memory
management, that is done through a new vlan flag: BR_VLFLAG_MCAST_ENABLED
which is changed only under multicast_lock. When a vlan is being
destroyed first that flag is removed under the lock, then the multicast
context is torn down which includes waiting for any outstanding context
timers. Since all of the vlan processing depends on BR_VLFLAG_MCAST_ENABLED
it must be checked first if the contexts are vlan and the multicast_lock
has been acquired. That is done by all IGMP/MLD packet processing
functions and timers. When processing a packet we have RCU so the vlan
memory won't be freed, but if the flag is missing we must not process it.
The timers are synchronized in the same way with the addition of waiting
for them to finish in case they are running after removing the flag
under multicast_lock (i.e. they were waiting for the lock). Multicast vlan
snooping requires vlan filtering to be enabled, if it's disabled then
snooping gets automatically disabled, too. BR_VLFLAG_GLOBAL_MCAST_ENABLED
controls if a vlan has BR_VLFLAG_MCAST_ENABLED set which is used in all
vlan disabled checks. We need both flags because one is controlled by
user-space globally (BR_VLFLAG_GLOBAL_MCAST_ENABLED) and the other is
for a particular bridge/vlan or port/vlan entry (BR_VLFLAG_MCAST_ENABLED).
Since the latter is also used for synchronization between the multicast
and vlan code, and also controlled by BR_VLFLAG_GLOBAL_MCAST_ENABLED we
rely on it when checking if a vlan context is disabled. The multicast
fast-path has 3 new bit tests on the cache-hot bridge flags field, I
didn't observe any measurable difference. I haven't forced either
context options to be always disabled when the other type is enabled
because the state consists of timers which either expire (router) or
don't affect the normal operation. Some options, like the mcast querier
one, won't be allowed to change for the disabled context type, that will
come with a future patch-set which adds per-vlan querier control.
Another important addition is the global vlan options, so far we had
only per bridge/port vlan options but in order to control vlan multicast
snooping globally we need to add a new type of global vlan options.
They can be changed only on the bridge device and are dumped only when a
special flag is set in the dump request. The first global option is vlan
mcast snooping control, it controls the vlan BR_VLFLAG_GLOBAL_MCAST_ENABLED
private flag. It can be set only on master vlan entries. There will be
many more global vlan options in the future both for multicast config
and other per-vlan options (e.g. STP).
There's a lot of room for improvements, I'll do some of the initial
ones but splitting the state to different contexts opens the door
for a lot more. Also any new multicast options become vlan-supported with
very little to no effort by using the same contexts.
Short patch description:
patches 01-04: initial mcast context add, no functional changes
patch 05: adds vlan mcast init and control helpers and uses them on
vlan create/destroy
patch 06: adds a global bridge mcast vlan snooping knob (default
off)
patches 07-08: add a helper for users which must derive the contexts
based on current bridge and vlan options (e.g. timers)
patch 09: adds checks for disabled vlan contexts in packet
processing and timers
patch 10: adds support for per-vlan querier and tagged queries
patch 11: adds router port vlan id in the notifications
patches 12-14: add global vlan options support (change, dump, notify)
patch 15: adds per-vlan global mcast snooping control
Future patch-sets which build on this one (in order):
- vlan state mcast handling
- user-space mdb contexts (currently only the bridge contexts are used
there)
- all bridge multicast config options added per-vlan global and per
vlan/port
- iproute2 support for all the new uAPIs
- selftests
This set has been stress-tested (deleting/adding ports/vlans while changing
vlan mcast snooping while processing IGMP/MLD packets), and also has
passed all bridge self-tests. I'm sending this set as early as possible
since there're a few more related sets that should go in the same
release to get proper and full mcast vlan snooping support.
Thanks,
Nik
Nikolay Aleksandrov (15):
net: bridge: multicast: factor out port multicast context
net: bridge: multicast: factor out bridge multicast context
net: bridge: multicast: use multicast contexts instead of bridge or
port
net: bridge: vlan: add global and per-port multicast context
net: bridge: multicast: add vlan state initialization and control
net: bridge: add vlan mcast snooping knob
net: bridge: multicast: add helper to get port mcast context from port
group
net: bridge: multicast: use the port group to port context helper
net: bridge: multicast: check if should use vlan mcast ctx
net: bridge: multicast: add vlan querier and query support
net: bridge: multicast: include router port vlan id in notifications
net: bridge: vlan: add support for global options
net: bridge: vlan: add support for dumping global vlan options
net: bridge: vlan: notify when global options change
net: bridge: vlan: add mcast snooping control
include/uapi/linux/if_bridge.h | 18 +
net/bridge/br.c | 9 +-
net/bridge/br_device.c | 14 +-
net/bridge/br_forward.c | 7 +-
net/bridge/br_input.c | 17 +-
net/bridge/br_mdb.c | 64 +-
net/bridge/br_multicast.c | 1656 ++++++++++++++++++-----------
net/bridge/br_multicast_eht.c | 92 +-
net/bridge/br_netlink.c | 41 +-
net/bridge/br_private.h | 355 +++++--
net/bridge/br_private_mcast_eht.h | 3 +-
net/bridge/br_sysfs_br.c | 38 +-
net/bridge/br_sysfs_if.c | 2 +-
net/bridge/br_vlan.c | 85 +-
net/bridge/br_vlan_options.c | 216 ++++
15 files changed, 1791 insertions(+), 826 deletions(-)
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 01/15] net: bridge: multicast: factor out port multicast context
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Factor out the port's multicast context into a separate structure which
will later be shared for per-port,vlan context. No functional changes
intended. We need the structure even if bridge multicast is not defined
to pass down as pointer to forwarding functions.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
net/bridge/br_mdb.c | 10 +-
net/bridge/br_multicast.c | 186 ++++++++++++++++++++++----------------
net/bridge/br_netlink.c | 2 +-
net/bridge/br_private.h | 45 ++++++---
net/bridge/br_sysfs_if.c | 2 +-
5 files changed, 146 insertions(+), 99 deletions(-)
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 17a720b4473f..64619dc65bc8 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -29,16 +29,16 @@ static bool br_rports_have_mc_router(struct net_bridge *br)
static bool
br_ip4_rports_get_timer(struct net_bridge_port *port, unsigned long *timer)
{
- *timer = br_timer_value(&port->ip4_mc_router_timer);
- return !hlist_unhashed(&port->ip4_rlist);
+ *timer = br_timer_value(&port->multicast_ctx.ip4_mc_router_timer);
+ return !hlist_unhashed(&port->multicast_ctx.ip4_rlist);
}
static bool
br_ip6_rports_get_timer(struct net_bridge_port *port, unsigned long *timer)
{
#if IS_ENABLED(CONFIG_IPV6)
- *timer = br_timer_value(&port->ip6_mc_router_timer);
- return !hlist_unhashed(&port->ip6_rlist);
+ *timer = br_timer_value(&port->multicast_ctx.ip6_mc_router_timer);
+ return !hlist_unhashed(&port->multicast_ctx.ip6_rlist);
#else
*timer = 0;
return false;
@@ -79,7 +79,7 @@ static int br_rports_fill_info(struct sk_buff *skb, struct
netlink_callback *cb,
nla_put_u32(skb, MDBA_ROUTER_PATTR_TIMER,
max(ip4_timer, ip6_timer)) ||
nla_put_u8(skb, MDBA_ROUTER_PATTR_TYPE,
- p->multicast_router) ||
+ p->multicast_ctx.multicast_router) ||
(have_ip4_mc_rtr &&
nla_put_u32(skb, MDBA_ROUTER_PATTR_INET_TIMER,
ip4_timer)) ||
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index d0434dc8c03b..3abb673ee4ee 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1368,50 +1368,52 @@ static bool br_multicast_rport_del(struct hlist_node
*rlist)
static bool br_ip4_multicast_rport_del(struct net_bridge_port *p)
{
- return br_multicast_rport_del(&p->ip4_rlist);
+ return br_multicast_rport_del(&p->multicast_ctx.ip4_rlist);
}
static bool br_ip6_multicast_rport_del(struct net_bridge_port *p)
{
#if IS_ENABLED(CONFIG_IPV6)
- return br_multicast_rport_del(&p->ip6_rlist);
+ return br_multicast_rport_del(&p->multicast_ctx.ip6_rlist);
#else
return false;
#endif
}
-static void br_multicast_router_expired(struct net_bridge_port *port,
+static void br_multicast_router_expired(struct net_bridge_mcast_port *pmctx,
struct timer_list *t,
struct hlist_node *rlist)
{
- struct net_bridge *br = port->br;
+ struct net_bridge *br = pmctx->port->br;
bool del;
spin_lock(&br->multicast_lock);
- if (port->multicast_router == MDB_RTR_TYPE_DISABLED ||
- port->multicast_router == MDB_RTR_TYPE_PERM ||
+ if (pmctx->multicast_router == MDB_RTR_TYPE_DISABLED ||
+ pmctx->multicast_router == MDB_RTR_TYPE_PERM ||
timer_pending(t))
goto out;
del = br_multicast_rport_del(rlist);
- br_multicast_rport_del_notify(port, del);
+ br_multicast_rport_del_notify(pmctx->port, del);
out:
spin_unlock(&br->multicast_lock);
}
static void br_ip4_multicast_router_expired(struct timer_list *t)
{
- struct net_bridge_port *port = from_timer(port, t, ip4_mc_router_timer);
+ struct net_bridge_mcast_port *pmctx = from_timer(pmctx, t,
+ ip4_mc_router_timer);
- br_multicast_router_expired(port, t, &port->ip4_rlist);
+ br_multicast_router_expired(pmctx, t, &pmctx->ip4_rlist);
}
#if IS_ENABLED(CONFIG_IPV6)
static void br_ip6_multicast_router_expired(struct timer_list *t)
{
- struct net_bridge_port *port = from_timer(port, t, ip6_mc_router_timer);
+ struct net_bridge_mcast_port *pmctx = from_timer(pmctx, t,
+ ip6_mc_router_timer);
- br_multicast_router_expired(port, t, &port->ip6_rlist);
+ br_multicast_router_expired(pmctx, t, &pmctx->ip6_rlist);
}
#endif
@@ -1555,7 +1557,7 @@ static void br_multicast_send_query(struct net_bridge *br,
memset(&br_group.dst, 0, sizeof(br_group.dst));
- if (port ? (own_query == &port->ip4_own_query) :
+ if (port ? (own_query == &port->multicast_ctx.ip4_own_query) :
(own_query == &br->ip4_own_query)) {
other_query = &br->ip4_other_query;
br_group.proto = htons(ETH_P_IP);
@@ -1580,20 +1582,20 @@ static void br_multicast_send_query(struct net_bridge
*br,
}
static void
-br_multicast_port_query_expired(struct net_bridge_port *port,
+br_multicast_port_query_expired(struct net_bridge_mcast_port *pmctx,
struct bridge_mcast_own_query *query)
{
- struct net_bridge *br = port->br;
+ struct net_bridge *br = pmctx->port->br;
spin_lock(&br->multicast_lock);
- if (port->state == BR_STATE_DISABLED ||
- port->state == BR_STATE_BLOCKING)
+ if (pmctx->port->state == BR_STATE_DISABLED ||
+ pmctx->port->state == BR_STATE_BLOCKING)
goto out;
if (query->startup_sent < br->multicast_startup_query_count)
query->startup_sent++;
- br_multicast_send_query(port->br, port, query);
+ br_multicast_send_query(pmctx->port->br, pmctx->port, query);
out:
spin_unlock(&br->multicast_lock);
@@ -1601,17 +1603,19 @@ br_multicast_port_query_expired(struct net_bridge_port
*port,
static void br_ip4_multicast_port_query_expired(struct timer_list *t)
{
- struct net_bridge_port *port = from_timer(port, t, ip4_own_query.timer);
+ struct net_bridge_mcast_port *pmctx = from_timer(pmctx, t,
+ ip4_own_query.timer);
- br_multicast_port_query_expired(port, &port->ip4_own_query);
+ br_multicast_port_query_expired(pmctx, &pmctx->ip4_own_query);
}
#if IS_ENABLED(CONFIG_IPV6)
static void br_ip6_multicast_port_query_expired(struct timer_list *t)
{
- struct net_bridge_port *port = from_timer(port, t, ip6_own_query.timer);
+ struct net_bridge_mcast_port *pmctx = from_timer(pmctx, t,
+ ip6_own_query.timer);
- br_multicast_port_query_expired(port, &port->ip6_own_query);
+ br_multicast_port_query_expired(pmctx, &pmctx->ip6_own_query);
}
#endif
@@ -1666,23 +1670,38 @@ static int br_mc_disabled_update(struct net_device *dev,
bool value,
return switchdev_port_attr_set(dev, &attr, extack);
}
-int br_multicast_add_port(struct net_bridge_port *port)
+static void br_multicast_port_ctx_init(struct net_bridge_port *port,
+ struct net_bridge_mcast_port *pmctx)
{
- int err;
-
- port->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
- port->multicast_eht_hosts_limit = BR_MCAST_DEFAULT_EHT_HOSTS_LIMIT;
-
- timer_setup(&port->ip4_mc_router_timer,
+ pmctx->port = port;
+ pmctx->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
+ timer_setup(&pmctx->ip4_mc_router_timer,
br_ip4_multicast_router_expired, 0);
- timer_setup(&port->ip4_own_query.timer,
+ timer_setup(&pmctx->ip4_own_query.timer,
br_ip4_multicast_port_query_expired, 0);
#if IS_ENABLED(CONFIG_IPV6)
- timer_setup(&port->ip6_mc_router_timer,
+ timer_setup(&pmctx->ip6_mc_router_timer,
br_ip6_multicast_router_expired, 0);
- timer_setup(&port->ip6_own_query.timer,
+ timer_setup(&pmctx->ip6_own_query.timer,
br_ip6_multicast_port_query_expired, 0);
#endif
+}
+
+static void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx)
+{
+#if IS_ENABLED(CONFIG_IPV6)
+ del_timer_sync(&pmctx->ip6_mc_router_timer);
+#endif
+ del_timer_sync(&pmctx->ip4_mc_router_timer);
+}
+
+int br_multicast_add_port(struct net_bridge_port *port)
+{
+ int err;
+
+ port->multicast_eht_hosts_limit = BR_MCAST_DEFAULT_EHT_HOSTS_LIMIT;
+ br_multicast_port_ctx_init(port, &port->multicast_ctx);
+
err = br_mc_disabled_update(port->dev,
br_opt_get(port->br,
BROPT_MULTICAST_ENABLED),
@@ -1711,10 +1730,7 @@ void br_multicast_del_port(struct net_bridge_port *port)
hlist_move_list(&br->mcast_gc_list, &deleted_head);
spin_unlock_bh(&br->multicast_lock);
br_multicast_gc(&deleted_head);
- del_timer_sync(&port->ip4_mc_router_timer);
-#if IS_ENABLED(CONFIG_IPV6)
- del_timer_sync(&port->ip6_mc_router_timer);
-#endif
+ br_multicast_port_ctx_deinit(&port->multicast_ctx);
free_percpu(port->mcast_stats);
}
@@ -1734,11 +1750,11 @@ static void __br_multicast_enable_port(struct
net_bridge_port *port)
if (!br_opt_get(br, BROPT_MULTICAST_ENABLED) || !netif_running(br->dev))
return;
- br_multicast_enable(&port->ip4_own_query);
+ br_multicast_enable(&port->multicast_ctx.ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
- br_multicast_enable(&port->ip6_own_query);
+ br_multicast_enable(&port->multicast_ctx.ip6_own_query);
#endif
- if (port->multicast_router == MDB_RTR_TYPE_PERM) {
+ if (port->multicast_ctx.multicast_router == MDB_RTR_TYPE_PERM) {
br_ip4_multicast_add_router(br, port);
br_ip6_multicast_add_router(br, port);
}
@@ -1766,12 +1782,12 @@ void br_multicast_disable_port(struct net_bridge_port
*port)
br_multicast_find_del_pg(br, pg);
del |= br_ip4_multicast_rport_del(port);
- del_timer(&port->ip4_mc_router_timer);
- del_timer(&port->ip4_own_query.timer);
+ del_timer(&port->multicast_ctx.ip4_mc_router_timer);
+ del_timer(&port->multicast_ctx.ip4_own_query.timer);
del |= br_ip6_multicast_rport_del(port);
#if IS_ENABLED(CONFIG_IPV6)
- del_timer(&port->ip6_mc_router_timer);
- del_timer(&port->ip6_own_query.timer);
+ del_timer(&port->multicast_ctx.ip6_mc_router_timer);
+ del_timer(&port->multicast_ctx.ip6_own_query.timer);
#endif
br_multicast_rport_del_notify(port, del);
spin_unlock(&br->multicast_lock);
@@ -2713,11 +2729,18 @@ br_multicast_rport_from_node(struct net_bridge *br,
struct hlist_head *mc_router_list,
struct hlist_node *rlist)
{
+ struct net_bridge_mcast_port *pmctx;
+
#if IS_ENABLED(CONFIG_IPV6)
if (mc_router_list == &br->ip6_mc_router_list)
- return hlist_entry(rlist, struct net_bridge_port, ip6_rlist);
+ pmctx = hlist_entry(rlist, struct net_bridge_mcast_port,
+ ip6_rlist);
+ else
#endif
- return hlist_entry(rlist, struct net_bridge_port, ip4_rlist);
+ pmctx = hlist_entry(rlist, struct net_bridge_mcast_port,
+ ip4_rlist);
+
+ return pmctx->port;
}
static struct hlist_node *
@@ -2746,10 +2769,10 @@ static bool br_multicast_no_router_otherpf(struct
net_bridge_port *port,
struct hlist_node *rnode)
{
#if IS_ENABLED(CONFIG_IPV6)
- if (rnode != &port->ip6_rlist)
- return hlist_unhashed(&port->ip6_rlist);
+ if (rnode != &port->multicast_ctx.ip6_rlist)
+ return hlist_unhashed(&port->multicast_ctx.ip6_rlist);
else
- return hlist_unhashed(&port->ip4_rlist);
+ return hlist_unhashed(&port->multicast_ctx.ip4_rlist);
#else
return true;
#endif
@@ -2793,7 +2816,7 @@ static void br_multicast_add_router(struct net_bridge *br,
static void br_ip4_multicast_add_router(struct net_bridge *br,
struct net_bridge_port *port)
{
- br_multicast_add_router(br, port, &port->ip4_rlist,
+ br_multicast_add_router(br, port, &port->multicast_ctx.ip4_rlist,
&br->ip4_mc_router_list);
}
@@ -2805,7 +2828,7 @@ static void br_ip6_multicast_add_router(struct net_bridge
*br,
struct net_bridge_port *port)
{
#if IS_ENABLED(CONFIG_IPV6)
- br_multicast_add_router(br, port, &port->ip6_rlist,
+ br_multicast_add_router(br, port, &port->multicast_ctx.ip6_rlist,
&br->ip6_mc_router_list);
#endif
}
@@ -2828,8 +2851,8 @@ static void br_multicast_mark_router(struct net_bridge
*br,
return;
}
- if (port->multicast_router == MDB_RTR_TYPE_DISABLED ||
- port->multicast_router == MDB_RTR_TYPE_PERM)
+ if (port->multicast_ctx.multicast_router == MDB_RTR_TYPE_DISABLED ||
+ port->multicast_ctx.multicast_router == MDB_RTR_TYPE_PERM)
return;
br_multicast_add_router(br, port, rlist, mc_router_list);
@@ -2843,8 +2866,8 @@ static void br_ip4_multicast_mark_router(struct net_bridge
*br,
struct hlist_node *rlist = NULL;
if (port) {
- timer = &port->ip4_mc_router_timer;
- rlist = &port->ip4_rlist;
+ timer = &port->multicast_ctx.ip4_mc_router_timer;
+ rlist = &port->multicast_ctx.ip4_rlist;
}
br_multicast_mark_router(br, port, timer, rlist,
@@ -2859,8 +2882,8 @@ static void br_ip6_multicast_mark_router(struct net_bridge
*br,
struct hlist_node *rlist = NULL;
if (port) {
- timer = &port->ip6_mc_router_timer;
- rlist = &port->ip6_rlist;
+ timer = &port->multicast_ctx.ip6_mc_router_timer;
+ rlist = &port->multicast_ctx.ip6_rlist;
}
br_multicast_mark_router(br, port, timer, rlist,
@@ -3183,7 +3206,8 @@ static void br_ip4_multicast_leave_group(struct net_bridge
*br,
if (ipv4_is_local_multicast(group))
return;
- own_query = port ? &port->ip4_own_query : &br->ip4_own_query;
+ own_query = port ? &port->multicast_ctx.ip4_own_query :
+ &br->ip4_own_query;
memset(&br_group, 0, sizeof(br_group));
br_group.dst.ip4 = group;
@@ -3207,7 +3231,8 @@ static void br_ip6_multicast_leave_group(struct net_bridge
*br,
if (ipv6_addr_is_ll_all_nodes(group))
return;
- own_query = port ? &port->ip6_own_query : &br->ip6_own_query;
+ own_query = port ? &port->multicast_ctx.ip6_own_query :
+ &br->ip6_own_query;
memset(&br_group, 0, sizeof(br_group));
br_group.dst.ip6 = *group;
@@ -3668,10 +3693,10 @@ br_multicast_rport_del_notify(struct net_bridge_port *p,
bool deleted)
/* For backwards compatibility for now, only notify if there is
* no multicast router anymore for both IPv4 and IPv6.
*/
- if (!hlist_unhashed(&p->ip4_rlist))
+ if (!hlist_unhashed(&p->multicast_ctx.ip4_rlist))
return;
#if IS_ENABLED(CONFIG_IPV6)
- if (!hlist_unhashed(&p->ip6_rlist))
+ if (!hlist_unhashed(&p->multicast_ctx.ip6_rlist))
return;
#endif
@@ -3679,8 +3704,8 @@ br_multicast_rport_del_notify(struct net_bridge_port *p,
bool deleted)
br_port_mc_router_state_change(p, false);
/* don't allow timer refresh */
- if (p->multicast_router == MDB_RTR_TYPE_TEMP)
- p->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
+ if (p->multicast_ctx.multicast_router == MDB_RTR_TYPE_TEMP)
+ p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
}
int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val)
@@ -3691,13 +3716,13 @@ int br_multicast_set_port_router(struct net_bridge_port
*p, unsigned long val)
bool del = false;
spin_lock(&br->multicast_lock);
- if (p->multicast_router == val) {
+ if (p->multicast_ctx.multicast_router == val) {
/* Refresh the temp router port timer */
- if (p->multicast_router == MDB_RTR_TYPE_TEMP) {
- mod_timer(&p->ip4_mc_router_timer,
+ if (p->multicast_ctx.multicast_router == MDB_RTR_TYPE_TEMP) {
+ mod_timer(&p->multicast_ctx.ip4_mc_router_timer,
now + br->multicast_querier_interval);
#if IS_ENABLED(CONFIG_IPV6)
- mod_timer(&p->ip6_mc_router_timer,
+ mod_timer(&p->multicast_ctx.ip6_mc_router_timer,
now + br->multicast_querier_interval);
#endif
}
@@ -3706,32 +3731,32 @@ int br_multicast_set_port_router(struct net_bridge_port
*p, unsigned long val)
}
switch (val) {
case MDB_RTR_TYPE_DISABLED:
- p->multicast_router = MDB_RTR_TYPE_DISABLED;
+ p->multicast_ctx.multicast_router = MDB_RTR_TYPE_DISABLED;
del |= br_ip4_multicast_rport_del(p);
- del_timer(&p->ip4_mc_router_timer);
+ del_timer(&p->multicast_ctx.ip4_mc_router_timer);
del |= br_ip6_multicast_rport_del(p);
#if IS_ENABLED(CONFIG_IPV6)
- del_timer(&p->ip6_mc_router_timer);
+ del_timer(&p->multicast_ctx.ip6_mc_router_timer);
#endif
br_multicast_rport_del_notify(p, del);
break;
case MDB_RTR_TYPE_TEMP_QUERY:
- p->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
+ p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
del |= br_ip4_multicast_rport_del(p);
del |= br_ip6_multicast_rport_del(p);
br_multicast_rport_del_notify(p, del);
break;
case MDB_RTR_TYPE_PERM:
- p->multicast_router = MDB_RTR_TYPE_PERM;
- del_timer(&p->ip4_mc_router_timer);
+ p->multicast_ctx.multicast_router = MDB_RTR_TYPE_PERM;
+ del_timer(&p->multicast_ctx.ip4_mc_router_timer);
br_ip4_multicast_add_router(br, p);
#if IS_ENABLED(CONFIG_IPV6)
- del_timer(&p->ip6_mc_router_timer);
+ del_timer(&p->multicast_ctx.ip6_mc_router_timer);
#endif
br_ip6_multicast_add_router(br, p);
break;
case MDB_RTR_TYPE_TEMP:
- p->multicast_router = MDB_RTR_TYPE_TEMP;
+ p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP;
br_ip4_multicast_mark_router(br, p);
br_ip6_multicast_mark_router(br, p);
break;
@@ -3759,10 +3784,10 @@ static void br_multicast_start_querier(struct net_bridge
*br,
continue;
if (query == &br->ip4_own_query)
- br_multicast_enable(&port->ip4_own_query);
+ br_multicast_enable(&port->multicast_ctx.ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
else
- br_multicast_enable(&port->ip6_own_query);
+ br_multicast_enable(&port->multicast_ctx.ip6_own_query);
#endif
}
rcu_read_unlock();
@@ -4071,7 +4096,8 @@ EXPORT_SYMBOL_GPL(br_multicast_has_querier_adjacent);
*/
bool br_multicast_has_router_adjacent(struct net_device *dev, int proto)
{
- struct net_bridge_port *port, *p;
+ struct net_bridge_mcast_port *pmctx;
+ struct net_bridge_port *port;
bool ret = false;
rcu_read_lock();
@@ -4081,9 +4107,9 @@ bool br_multicast_has_router_adjacent(struct net_device
*dev, int proto)
switch (proto) {
case ETH_P_IP:
- hlist_for_each_entry_rcu(p, &port->br->ip4_mc_router_list,
+ hlist_for_each_entry_rcu(pmctx, &port->br->ip4_mc_router_list,
ip4_rlist) {
- if (p == port)
+ if (pmctx->port == port)
continue;
ret = true;
@@ -4092,9 +4118,9 @@ bool br_multicast_has_router_adjacent(struct net_device
*dev, int proto)
break;
#if IS_ENABLED(CONFIG_IPV6)
case ETH_P_IPV6:
- hlist_for_each_entry_rcu(p, &port->br->ip6_mc_router_list,
+ hlist_for_each_entry_rcu(pmctx, &port->br->ip6_mc_router_list,
ip6_rlist) {
- if (p == port)
+ if (pmctx->port == port)
continue;
ret = true;
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index d366420f40f1..0cbe5826cfe8 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -287,7 +287,7 @@ static int br_port_fill_attrs(struct sk_buff *skb,
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
- p->multicast_router) ||
+ p->multicast_ctx.multicast_router) ||
nla_put_u32(skb, IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT,
p->multicast_eht_hosts_limit) ||
nla_put_u32(skb, IFLA_BRPORT_MCAST_EHT_HOSTS_CNT,
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 97ced5e10d04..61034fd8a3bd 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -89,6 +89,23 @@ struct bridge_mcast_stats {
};
#endif
+/* net_bridge_mcast_port must be always defined due to forwarding stubs */
+struct net_bridge_mcast_port {
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+ struct net_bridge_port *port;
+
+ struct bridge_mcast_own_query ip4_own_query;
+ struct timer_list ip4_mc_router_timer;
+ struct hlist_node ip4_rlist;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct bridge_mcast_own_query ip6_own_query;
+ struct timer_list ip6_mc_router_timer;
+ struct hlist_node ip6_rlist;
+#endif /* IS_ENABLED(CONFIG_IPV6) */
+ unsigned char multicast_router;
+#endif /* CONFIG_BRIDGE_IGMP_SNOOPING */
+};
+
struct br_tunnel_info {
__be64 tunnel_id;
struct metadata_dst __rcu *tunnel_dst;
@@ -313,19 +330,13 @@ struct net_bridge_port {
struct kobject kobj;
struct rcu_head rcu;
+ struct net_bridge_mcast_port multicast_ctx;
+
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
- struct bridge_mcast_own_query ip4_own_query;
- struct timer_list ip4_mc_router_timer;
- struct hlist_node ip4_rlist;
-#if IS_ENABLED(CONFIG_IPV6)
- struct bridge_mcast_own_query ip6_own_query;
- struct timer_list ip6_mc_router_timer;
- struct hlist_node ip6_rlist;
-#endif /* IS_ENABLED(CONFIG_IPV6) */
+ struct bridge_mcast_stats __percpu *mcast_stats;
+
u32 multicast_eht_hosts_limit;
u32 multicast_eht_hosts_cnt;
- unsigned char multicast_router;
- struct bridge_mcast_stats __percpu *mcast_stats;
struct hlist_head mglist;
#endif
@@ -892,11 +903,21 @@ br_multicast_get_first_rport_node(struct net_bridge *b,
struct sk_buff *skb) {
static inline struct net_bridge_port *
br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb) {
+ struct net_bridge_mcast_port *mctx;
+
#if IS_ENABLED(CONFIG_IPV6)
if (skb->protocol == htons(ETH_P_IPV6))
- return hlist_entry_safe(rp, struct net_bridge_port, ip6_rlist);
+ mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port,
+ ip6_rlist);
+ else
#endif
- return hlist_entry_safe(rp, struct net_bridge_port, ip4_rlist);
+ mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port,
+ ip4_rlist);
+
+ if (mctx)
+ return mctx->port;
+ else
+ return NULL;
}
static inline bool br_ip4_multicast_is_router(struct net_bridge *br)
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 72e92376eef1..e9e3aedd3178 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -244,7 +244,7 @@ BRPORT_ATTR_FLAG(isolated, BR_ISOLATED);
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
{
- return sprintf(buf, "%d\n", p->multicast_router);
+ return sprintf(buf, "%d\n", p->multicast_ctx.multicast_router);
}
static int store_multicast_router(struct net_bridge_port *p,
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 02/15] net: bridge: multicast: factor out bridge multicast context
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Factor out the bridge's global multicast context into a separate
structure which will later be used for per-vlan global context.
No functional changes intended.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
net/bridge/br_mdb.c | 23 +--
net/bridge/br_multicast.c | 398 +++++++++++++++++++++-----------------
net/bridge/br_netlink.c | 39 ++--
net/bridge/br_private.h | 112 ++++++-----
net/bridge/br_sysfs_br.c | 38 ++--
5 files changed, 335 insertions(+), 275 deletions(-)
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 64619dc65bc8..effe03c08038 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -16,13 +16,13 @@
#include "br_private.h"
-static bool br_rports_have_mc_router(struct net_bridge *br)
+static bool br_rports_have_mc_router(struct net_bridge_mcast *brmctx)
{
#if IS_ENABLED(CONFIG_IPV6)
- return !hlist_empty(&br->ip4_mc_router_list) ||
- !hlist_empty(&br->ip6_mc_router_list);
+ return !hlist_empty(&brmctx->ip4_mc_router_list) ||
+ !hlist_empty(&brmctx->ip6_mc_router_list);
#else
- return !hlist_empty(&br->ip4_mc_router_list);
+ return !hlist_empty(&brmctx->ip4_mc_router_list);
#endif
}
@@ -54,10 +54,10 @@ static int br_rports_fill_info(struct sk_buff *skb, struct
netlink_callback *cb,
struct nlattr *nest, *port_nest;
struct net_bridge_port *p;
- if (!br->multicast_router)
+ if (!br->multicast_ctx.multicast_router)
return 0;
- if (!br_rports_have_mc_router(br))
+ if (!br_rports_have_mc_router(&br->multicast_ctx))
return 0;
nest = nla_nest_start_noflag(skb, MDBA_ROUTER);
@@ -240,7 +240,7 @@ static int __mdb_fill_info(struct sk_buff *skb,
switch (mp->addr.proto) {
case htons(ETH_P_IP):
- dump_srcs_mode = !!(mp->br->multicast_igmp_version == 3);
+ dump_srcs_mode = !!(mp->br->multicast_ctx.multicast_igmp_version == 3);
if (mp->addr.src.ip4) {
if (nla_put_in_addr(skb, MDBA_MDB_EATTR_SOURCE,
mp->addr.src.ip4))
@@ -250,7 +250,7 @@ static int __mdb_fill_info(struct sk_buff *skb,
break;
#if IS_ENABLED(CONFIG_IPV6)
case htons(ETH_P_IPV6):
- dump_srcs_mode = !!(mp->br->multicast_mld_version == 2);
+ dump_srcs_mode = !!(mp->br->multicast_ctx.multicast_mld_version == 2);
if (!ipv6_addr_any(&mp->addr.src.ip6)) {
if (nla_put_in6_addr(skb, MDBA_MDB_EATTR_SOURCE,
&mp->addr.src.ip6))
@@ -483,7 +483,7 @@ static size_t rtnl_mdb_nlmsg_size(struct
net_bridge_port_group *pg)
/* MDBA_MDB_EATTR_SOURCE */
if (pg->key.addr.src.ip4)
nlmsg_size += nla_total_size(sizeof(__be32));
- if (pg->key.port->br->multicast_igmp_version == 2)
+ if (pg->key.port->br->multicast_ctx.multicast_igmp_version == 2)
goto out;
addr_size = sizeof(__be32);
break;
@@ -492,7 +492,7 @@ static size_t rtnl_mdb_nlmsg_size(struct
net_bridge_port_group *pg)
/* MDBA_MDB_EATTR_SOURCE */
if (!ipv6_addr_any(&pg->key.addr.src.ip6))
nlmsg_size += nla_total_size(sizeof(struct in6_addr));
- if (pg->key.port->br->multicast_mld_version == 1)
+ if (pg->key.port->br->multicast_ctx.multicast_mld_version == 1)
goto out;
addr_size = sizeof(struct in6_addr);
break;
@@ -1084,7 +1084,8 @@ static int br_mdb_add_group(struct net_bridge *br, struct
net_bridge_port *port,
}
rcu_assign_pointer(*pp, p);
if (entry->state == MDB_TEMPORARY)
- mod_timer(&p->timer, now + br->multicast_membership_interval);
+ mod_timer(&p->timer,
+ now + br->multicast_ctx.multicast_membership_interval);
br_mdb_notify(br->dev, mp, p, RTM_NEWMDB);
/* if we are adding a new EXCLUDE port group (*,G) it needs to be also
* added to all S,G entries for proper replication, if we are adding
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 3abb673ee4ee..92bfc1d95cd5 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -158,7 +158,7 @@ struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge
*br,
switch (skb->protocol) {
case htons(ETH_P_IP):
ip.dst.ip4 = ip_hdr(skb)->daddr;
- if (br->multicast_igmp_version == 3) {
+ if (br->multicast_ctx.multicast_igmp_version == 3) {
struct net_bridge_mdb_entry *mdb;
ip.src.ip4 = ip_hdr(skb)->saddr;
@@ -171,7 +171,7 @@ struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge
*br,
#if IS_ENABLED(CONFIG_IPV6)
case htons(ETH_P_IPV6):
ip.dst.ip6 = ipv6_hdr(skb)->daddr;
- if (br->multicast_mld_version == 2) {
+ if (br->multicast_ctx.multicast_mld_version == 2) {
struct net_bridge_mdb_entry *mdb;
ip.src.ip6 = ipv6_hdr(skb)->saddr;
@@ -699,6 +699,7 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge *br,
u8 sflag, u8 *igmp_type,
bool *need_rexmit)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct net_bridge_port *p = pg ? pg->key.port : NULL;
struct net_bridge_group_src *ent;
size_t pkt_size, igmp_hdr_size;
@@ -714,11 +715,11 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge *br,
u16 lmqt_srcs = 0;
igmp_hdr_size = sizeof(*ih);
- if (br->multicast_igmp_version == 3) {
+ if (brmctx->multicast_igmp_version == 3) {
igmp_hdr_size = sizeof(*ihv3);
if (pg && with_srcs) {
- lmqt = now + (br->multicast_last_member_interval *
- br->multicast_last_member_count);
+ lmqt = now + (brmctx->multicast_last_member_interval *
+ brmctx->multicast_last_member_count);
hlist_for_each_entry(ent, &pg->src_list, node) {
if (over_lmqt == time_after(ent->timer.expires,
lmqt) &&
@@ -775,12 +776,12 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge *br,
skb_set_transport_header(skb, skb->len);
*igmp_type = IGMP_HOST_MEMBERSHIP_QUERY;
- switch (br->multicast_igmp_version) {
+ switch (brmctx->multicast_igmp_version) {
case 2:
ih = igmp_hdr(skb);
ih->type = IGMP_HOST_MEMBERSHIP_QUERY;
- ih->code = (group ? br->multicast_last_member_interval :
- br->multicast_query_response_interval) /
+ ih->code = (group ? brmctx->multicast_last_member_interval :
+ brmctx->multicast_query_response_interval) /
(HZ / IGMP_TIMER_SCALE);
ih->group = group;
ih->csum = 0;
@@ -790,11 +791,11 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge *br,
case 3:
ihv3 = igmpv3_query_hdr(skb);
ihv3->type = IGMP_HOST_MEMBERSHIP_QUERY;
- ihv3->code = (group ? br->multicast_last_member_interval :
- br->multicast_query_response_interval) /
+ ihv3->code = (group ? brmctx->multicast_last_member_interval :
+ brmctx->multicast_query_response_interval) /
(HZ / IGMP_TIMER_SCALE);
ihv3->group = group;
- ihv3->qqic = br->multicast_query_interval / HZ;
+ ihv3->qqic = brmctx->multicast_query_interval / HZ;
ihv3->nsrcs = htons(lmqt_srcs);
ihv3->resv = 0;
ihv3->suppress = sflag;
@@ -845,6 +846,7 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge *br,
u8 sflag, u8 *igmp_type,
bool *need_rexmit)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct net_bridge_port *p = pg ? pg->key.port : NULL;
struct net_bridge_group_src *ent;
size_t pkt_size, mld_hdr_size;
@@ -862,11 +864,11 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge *br,
u8 *hopopt;
mld_hdr_size = sizeof(*mldq);
- if (br->multicast_mld_version == 2) {
+ if (brmctx->multicast_mld_version == 2) {
mld_hdr_size = sizeof(*mld2q);
if (pg && with_srcs) {
- llqt = now + (br->multicast_last_member_interval *
- br->multicast_last_member_count);
+ llqt = now + (brmctx->multicast_last_member_interval *
+ brmctx->multicast_last_member_count);
hlist_for_each_entry(ent, &pg->src_list, node) {
if (over_llqt == time_after(ent->timer.expires,
llqt) &&
@@ -933,10 +935,10 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge *br,
/* ICMPv6 */
skb_set_transport_header(skb, skb->len);
interval = ipv6_addr_any(group) ?
- br->multicast_query_response_interval :
- br->multicast_last_member_interval;
+ brmctx->multicast_query_response_interval :
+ brmctx->multicast_last_member_interval;
*igmp_type = ICMPV6_MGM_QUERY;
- switch (br->multicast_mld_version) {
+ switch (brmctx->multicast_mld_version) {
case 1:
mldq = (struct mld_msg *)icmp6_hdr(skb);
mldq->mld_type = ICMPV6_MGM_QUERY;
@@ -959,7 +961,7 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge *br,
mld2q->mld2q_suppress = sflag;
mld2q->mld2q_qrv = 2;
mld2q->mld2q_nsrcs = htons(llqt_srcs);
- mld2q->mld2q_qqic = br->multicast_query_interval / HZ;
+ mld2q->mld2q_qqic = brmctx->multicast_query_interval / HZ;
mld2q->mld2q_mca = *group;
csum = &mld2q->mld2q_cksum;
csum_start = (void *)mld2q;
@@ -1219,7 +1221,8 @@ void br_multicast_host_join(struct net_bridge_mdb_entry
*mp, bool notify)
if (br_group_is_l2(&mp->addr))
return;
- mod_timer(&mp->timer, jiffies +
mp->br->multicast_membership_interval);
+ mod_timer(&mp->timer,
+ jiffies + mp->br->multicast_ctx.multicast_membership_interval);
}
void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify)
@@ -1283,7 +1286,8 @@ __br_multicast_add_group(struct net_bridge *br,
found:
if (igmpv2_mldv1)
- mod_timer(&p->timer, now + br->multicast_membership_interval);
+ mod_timer(&p->timer,
+ now + br->multicast_ctx.multicast_membership_interval);
out:
return p;
@@ -1430,63 +1434,68 @@ static void br_mc_router_state_change(struct net_bridge
*p,
switchdev_port_attr_set(p->dev, &attr, NULL);
}
-static void br_multicast_local_router_expired(struct net_bridge *br,
+static void br_multicast_local_router_expired(struct net_bridge_mcast *brmctx,
struct timer_list *timer)
{
- spin_lock(&br->multicast_lock);
- if (br->multicast_router == MDB_RTR_TYPE_DISABLED ||
- br->multicast_router == MDB_RTR_TYPE_PERM ||
- br_ip4_multicast_is_router(br) ||
- br_ip6_multicast_is_router(br))
+ spin_lock(&brmctx->br->multicast_lock);
+ if (brmctx->multicast_router == MDB_RTR_TYPE_DISABLED ||
+ brmctx->multicast_router == MDB_RTR_TYPE_PERM ||
+ br_ip4_multicast_is_router(brmctx) ||
+ br_ip6_multicast_is_router(brmctx))
goto out;
- br_mc_router_state_change(br, false);
+ br_mc_router_state_change(brmctx->br, false);
out:
- spin_unlock(&br->multicast_lock);
+ spin_unlock(&brmctx->br->multicast_lock);
}
static void br_ip4_multicast_local_router_expired(struct timer_list *t)
{
- struct net_bridge *br = from_timer(br, t, ip4_mc_router_timer);
+ struct net_bridge_mcast *brmctx = from_timer(brmctx, t,
+ ip4_mc_router_timer);
- br_multicast_local_router_expired(br, t);
+ br_multicast_local_router_expired(brmctx, t);
}
#if IS_ENABLED(CONFIG_IPV6)
static void br_ip6_multicast_local_router_expired(struct timer_list *t)
{
- struct net_bridge *br = from_timer(br, t, ip6_mc_router_timer);
+ struct net_bridge_mcast *brmctx = from_timer(brmctx, t,
+ ip6_mc_router_timer);
- br_multicast_local_router_expired(br, t);
+ br_multicast_local_router_expired(brmctx, t);
}
#endif
-static void br_multicast_querier_expired(struct net_bridge *br,
+static void br_multicast_querier_expired(struct net_bridge_mcast *brmctx,
struct bridge_mcast_own_query *query)
{
- spin_lock(&br->multicast_lock);
- if (!netif_running(br->dev) || !br_opt_get(br, BROPT_MULTICAST_ENABLED))
+ spin_lock(&brmctx->br->multicast_lock);
+ if (!netif_running(brmctx->br->dev) ||
+ !br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED))
goto out;
- br_multicast_start_querier(br, query);
+ br_multicast_start_querier(brmctx->br, query);
out:
- spin_unlock(&br->multicast_lock);
+ spin_unlock(&brmctx->br->multicast_lock);
}
static void br_ip4_multicast_querier_expired(struct timer_list *t)
{
- struct net_bridge *br = from_timer(br, t, ip4_other_query.timer);
+ struct net_bridge_mcast *brmctx = from_timer(brmctx, t,
+ ip4_other_query.timer);
- br_multicast_querier_expired(br, &br->ip4_own_query);
+ br_multicast_querier_expired(brmctx, &brmctx->ip4_own_query);
}
#if IS_ENABLED(CONFIG_IPV6)
static void br_ip6_multicast_querier_expired(struct timer_list *t)
{
- struct net_bridge *br = from_timer(br, t, ip6_other_query.timer);
+ struct net_bridge_mcast *brmctx = from_timer(brmctx, t,
+ ip6_other_query.timer);
- br_multicast_querier_expired(br, &br->ip6_own_query);
+ br_multicast_querier_expired(brmctx, &brmctx->ip6_own_query);
}
#endif
@@ -1494,11 +1503,13 @@ static void br_multicast_select_own_querier(struct
net_bridge *br,
struct br_ip *ip,
struct sk_buff *skb)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
+
if (ip->proto == htons(ETH_P_IP))
- br->ip4_querier.addr.src.ip4 = ip_hdr(skb)->saddr;
+ brmctx->ip4_querier.addr.src.ip4 = ip_hdr(skb)->saddr;
#if IS_ENABLED(CONFIG_IPV6)
else
- br->ip6_querier.addr.src.ip6 = ipv6_hdr(skb)->saddr;
+ brmctx->ip6_querier.addr.src.ip6 = ipv6_hdr(skb)->saddr;
#endif
}
@@ -1546,6 +1557,7 @@ static void br_multicast_send_query(struct net_bridge *br,
struct net_bridge_port *port,
struct bridge_mcast_own_query *own_query)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct bridge_mcast_other_query *other_query = NULL;
struct br_ip br_group;
unsigned long time;
@@ -1558,12 +1570,12 @@ static void br_multicast_send_query(struct net_bridge
*br,
memset(&br_group.dst, 0, sizeof(br_group.dst));
if (port ? (own_query == &port->multicast_ctx.ip4_own_query) :
- (own_query == &br->ip4_own_query)) {
- other_query = &br->ip4_other_query;
+ (own_query == &brmctx->ip4_own_query)) {
+ other_query = &brmctx->ip4_other_query;
br_group.proto = htons(ETH_P_IP);
#if IS_ENABLED(CONFIG_IPV6)
} else {
- other_query = &br->ip6_other_query;
+ other_query = &brmctx->ip6_other_query;
br_group.proto = htons(ETH_P_IPV6);
#endif
}
@@ -1575,9 +1587,9 @@ static void br_multicast_send_query(struct net_bridge *br,
NULL);
time = jiffies;
- time += own_query->startup_sent < br->multicast_startup_query_count ?
- br->multicast_startup_query_interval :
- br->multicast_query_interval;
+ time += own_query->startup_sent <
brmctx->multicast_startup_query_count ?
+ brmctx->multicast_startup_query_interval :
+ brmctx->multicast_query_interval;
mod_timer(&own_query->timer, time);
}
@@ -1592,7 +1604,7 @@ br_multicast_port_query_expired(struct
net_bridge_mcast_port *pmctx,
pmctx->port->state == BR_STATE_BLOCKING)
goto out;
- if (query->startup_sent < br->multicast_startup_query_count)
+ if (query->startup_sent <
br->multicast_ctx.multicast_startup_query_count)
query->startup_sent++;
br_multicast_send_query(pmctx->port->br, pmctx->port, query);
@@ -1624,6 +1636,7 @@ static void br_multicast_port_group_rexmit(struct
timer_list *t)
struct net_bridge_port_group *pg = from_timer(pg, t, rexmit_timer);
struct bridge_mcast_other_query *other_query = NULL;
struct net_bridge *br = pg->key.port->br;
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
bool need_rexmit = false;
spin_lock(&br->multicast_lock);
@@ -1633,10 +1646,10 @@ static void br_multicast_port_group_rexmit(struct
timer_list *t)
goto out;
if (pg->key.addr.proto == htons(ETH_P_IP))
- other_query = &br->ip4_other_query;
+ other_query = &brmctx->ip4_other_query;
#if IS_ENABLED(CONFIG_IPV6)
else
- other_query = &br->ip6_other_query;
+ other_query = &brmctx->ip6_other_query;
#endif
if (!other_query || timer_pending(&other_query->timer))
@@ -1652,7 +1665,7 @@ static void br_multicast_port_group_rexmit(struct
timer_list *t)
if (pg->grp_query_rexmit_cnt || need_rexmit)
mod_timer(&pg->rexmit_timer, jiffies +
- br->multicast_last_member_interval);
+ brmctx->multicast_last_member_interval);
out:
spin_unlock(&br->multicast_lock);
}
@@ -1819,7 +1832,8 @@ static void __grp_src_query_marked_and_rexmit(struct
net_bridge_port_group *pg)
{
struct bridge_mcast_other_query *other_query = NULL;
struct net_bridge *br = pg->key.port->br;
- u32 lmqc = br->multicast_last_member_count;
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
+ u32 lmqc = brmctx->multicast_last_member_count;
unsigned long lmqt, lmi, now = jiffies;
struct net_bridge_group_src *ent;
@@ -1828,10 +1842,10 @@ static void __grp_src_query_marked_and_rexmit(struct
net_bridge_port_group *pg)
return;
if (pg->key.addr.proto == htons(ETH_P_IP))
- other_query = &br->ip4_other_query;
+ other_query = &brmctx->ip4_other_query;
#if IS_ENABLED(CONFIG_IPV6)
else
- other_query = &br->ip6_other_query;
+ other_query = &brmctx->ip6_other_query;
#endif
lmqt = now + br_multicast_lmqt(br);
@@ -1855,7 +1869,7 @@ static void __grp_src_query_marked_and_rexmit(struct
net_bridge_port_group *pg)
__br_multicast_send_query(br, pg->key.port, pg, &pg->key.addr,
&pg->key.addr, true, 1, NULL);
- lmi = now + br->multicast_last_member_interval;
+ lmi = now + brmctx->multicast_last_member_interval;
if (!timer_pending(&pg->rexmit_timer) ||
time_after(pg->rexmit_timer.expires, lmi))
mod_timer(&pg->rexmit_timer, lmi);
@@ -1865,6 +1879,7 @@ static void __grp_send_query_and_rexmit(struct
net_bridge_port_group *pg)
{
struct bridge_mcast_other_query *other_query = NULL;
struct net_bridge *br = pg->key.port->br;
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
unsigned long now = jiffies, lmi;
if (!netif_running(br->dev) ||
@@ -1872,16 +1887,16 @@ static void __grp_send_query_and_rexmit(struct
net_bridge_port_group *pg)
return;
if (pg->key.addr.proto == htons(ETH_P_IP))
- other_query = &br->ip4_other_query;
+ other_query = &brmctx->ip4_other_query;
#if IS_ENABLED(CONFIG_IPV6)
else
- other_query = &br->ip6_other_query;
+ other_query = &brmctx->ip6_other_query;
#endif
if (br_opt_get(br, BROPT_MULTICAST_QUERIER) &&
other_query && !timer_pending(&other_query->timer)) {
- lmi = now + br->multicast_last_member_interval;
- pg->grp_query_rexmit_cnt = br->multicast_last_member_count - 1;
+ lmi = now + brmctx->multicast_last_member_interval;
+ pg->grp_query_rexmit_cnt = brmctx->multicast_last_member_count - 1;
__br_multicast_send_query(br, pg->key.port, pg, &pg->key.addr,
&pg->key.addr, false, 0, NULL);
if (!timer_pending(&pg->rexmit_timer) ||
@@ -2405,7 +2420,7 @@ static int br_ip4_multicast_igmp3_report(struct net_bridge
*br,
struct sk_buff *skb,
u16 vid)
{
- bool igmpv2 = br->multicast_igmp_version == 2;
+ bool igmpv2 = br->multicast_ctx.multicast_igmp_version == 2;
struct net_bridge_mdb_entry *mdst;
struct net_bridge_port_group *pg;
const unsigned char *src;
@@ -2517,7 +2532,7 @@ static int br_ip6_multicast_mld2_report(struct net_bridge
*br,
struct sk_buff *skb,
u16 vid)
{
- bool mldv1 = br->multicast_mld_version == 1;
+ bool mldv1 = br->multicast_ctx.multicast_mld_version == 1;
struct net_bridge_mdb_entry *mdst;
struct net_bridge_port_group *pg;
unsigned int nsrcs_offset;
@@ -2655,23 +2670,25 @@ static bool br_ip4_multicast_select_querier(struct
net_bridge *br,
struct net_bridge_port *port,
__be32 saddr)
{
- if (!timer_pending(&br->ip4_own_query.timer) &&
- !timer_pending(&br->ip4_other_query.timer))
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
+
+ if (!timer_pending(&brmctx->ip4_own_query.timer) &&
+ !timer_pending(&brmctx->ip4_other_query.timer))
goto update;
- if (!br->ip4_querier.addr.src.ip4)
+ if (!brmctx->ip4_querier.addr.src.ip4)
goto update;
- if (ntohl(saddr) <= ntohl(br->ip4_querier.addr.src.ip4))
+ if (ntohl(saddr) <= ntohl(brmctx->ip4_querier.addr.src.ip4))
goto update;
return false;
update:
- br->ip4_querier.addr.src.ip4 = saddr;
+ brmctx->ip4_querier.addr.src.ip4 = saddr;
/* update protected by general multicast_lock by caller */
- rcu_assign_pointer(br->ip4_querier.port, port);
+ rcu_assign_pointer(brmctx->ip4_querier.port, port);
return true;
}
@@ -2681,20 +2698,22 @@ static bool br_ip6_multicast_select_querier(struct
net_bridge *br,
struct net_bridge_port *port,
struct in6_addr *saddr)
{
- if (!timer_pending(&br->ip6_own_query.timer) &&
- !timer_pending(&br->ip6_other_query.timer))
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
+
+ if (!timer_pending(&brmctx->ip6_own_query.timer) &&
+ !timer_pending(&brmctx->ip6_other_query.timer))
goto update;
- if (ipv6_addr_cmp(saddr, &br->ip6_querier.addr.src.ip6) <= 0)
+ if (ipv6_addr_cmp(saddr, &brmctx->ip6_querier.addr.src.ip6) <= 0)
goto update;
return false;
update:
- br->ip6_querier.addr.src.ip6 = *saddr;
+ brmctx->ip6_querier.addr.src.ip6 = *saddr;
/* update protected by general multicast_lock by caller */
- rcu_assign_pointer(br->ip6_querier.port, port);
+ rcu_assign_pointer(brmctx->ip6_querier.port, port);
return true;
}
@@ -2708,7 +2727,8 @@ br_multicast_update_query_timer(struct net_bridge *br,
if (!timer_pending(&query->timer))
query->delay_time = jiffies + max_delay;
- mod_timer(&query->timer, jiffies + br->multicast_querier_interval);
+ mod_timer(&query->timer, jiffies +
+ br->multicast_ctx.multicast_querier_interval);
}
static void br_port_mc_router_state_change(struct net_bridge_port *p,
@@ -2725,14 +2745,14 @@ static void br_port_mc_router_state_change(struct
net_bridge_port *p,
}
static struct net_bridge_port *
-br_multicast_rport_from_node(struct net_bridge *br,
+br_multicast_rport_from_node(struct net_bridge_mcast *brmctx,
struct hlist_head *mc_router_list,
struct hlist_node *rlist)
{
struct net_bridge_mcast_port *pmctx;
#if IS_ENABLED(CONFIG_IPV6)
- if (mc_router_list == &br->ip6_mc_router_list)
+ if (mc_router_list == &brmctx->ip6_mc_router_list)
pmctx = hlist_entry(rlist, struct net_bridge_mcast_port,
ip6_rlist);
else
@@ -2744,7 +2764,7 @@ br_multicast_rport_from_node(struct net_bridge *br,
}
static struct hlist_node *
-br_multicast_get_rport_slot(struct net_bridge *br,
+br_multicast_get_rport_slot(struct net_bridge_mcast *brmctx,
struct net_bridge_port *port,
struct hlist_head *mc_router_list)
@@ -2754,7 +2774,7 @@ br_multicast_get_rport_slot(struct net_bridge *br,
struct hlist_node *rlist;
hlist_for_each(rlist, mc_router_list) {
- p = br_multicast_rport_from_node(br, mc_router_list, rlist);
+ p = br_multicast_rport_from_node(brmctx, mc_router_list, rlist);
if ((unsigned long)port >= (unsigned long)p)
break;
@@ -2782,7 +2802,7 @@ static bool br_multicast_no_router_otherpf(struct
net_bridge_port *port,
* list is maintained ordered by pointer value
* and locked by br->multicast_lock and RCU
*/
-static void br_multicast_add_router(struct net_bridge *br,
+static void br_multicast_add_router(struct net_bridge_mcast *brmctx,
struct net_bridge_port *port,
struct hlist_node *rlist,
struct hlist_head *mc_router_list)
@@ -2792,7 +2812,7 @@ static void br_multicast_add_router(struct net_bridge *br,
if (!hlist_unhashed(rlist))
return;
- slot = br_multicast_get_rport_slot(br, port, mc_router_list);
+ slot = br_multicast_get_rport_slot(brmctx, port, mc_router_list);
if (slot)
hlist_add_behind_rcu(rlist, slot);
@@ -2804,7 +2824,7 @@ static void br_multicast_add_router(struct net_bridge *br,
* IPv4 or IPv6 multicast router.
*/
if (br_multicast_no_router_otherpf(port, rlist)) {
- br_rtr_notify(br->dev, port, RTM_NEWMDB);
+ br_rtr_notify(port->br->dev, port, RTM_NEWMDB);
br_port_mc_router_state_change(port, true);
}
}
@@ -2816,8 +2836,9 @@ static void br_multicast_add_router(struct net_bridge *br,
static void br_ip4_multicast_add_router(struct net_bridge *br,
struct net_bridge_port *port)
{
- br_multicast_add_router(br, port, &port->multicast_ctx.ip4_rlist,
- &br->ip4_mc_router_list);
+ br_multicast_add_router(&br->multicast_ctx, port,
+ &port->multicast_ctx.ip4_rlist,
+ &br->multicast_ctx.ip4_mc_router_list);
}
/* Add port to router_list
@@ -2828,8 +2849,9 @@ static void br_ip6_multicast_add_router(struct net_bridge
*br,
struct net_bridge_port *port)
{
#if IS_ENABLED(CONFIG_IPV6)
- br_multicast_add_router(br, port, &port->multicast_ctx.ip6_rlist,
- &br->ip6_mc_router_list);
+ br_multicast_add_router(&br->multicast_ctx, port,
+ &port->multicast_ctx.ip6_rlist,
+ &br->multicast_ctx.ip6_mc_router_list);
#endif
}
@@ -2839,14 +2861,15 @@ static void br_multicast_mark_router(struct net_bridge
*br,
struct hlist_node *rlist,
struct hlist_head *mc_router_list)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
unsigned long now = jiffies;
if (!port) {
- if (br->multicast_router == MDB_RTR_TYPE_TEMP_QUERY) {
- if (!br_ip4_multicast_is_router(br) &&
- !br_ip6_multicast_is_router(br))
+ if (brmctx->multicast_router == MDB_RTR_TYPE_TEMP_QUERY) {
+ if (!br_ip4_multicast_is_router(brmctx) &&
+ !br_ip6_multicast_is_router(brmctx))
br_mc_router_state_change(br, true);
- mod_timer(timer, now + br->multicast_querier_interval);
+ mod_timer(timer, now + brmctx->multicast_querier_interval);
}
return;
}
@@ -2855,14 +2878,14 @@ static void br_multicast_mark_router(struct net_bridge
*br,
port->multicast_ctx.multicast_router == MDB_RTR_TYPE_PERM)
return;
- br_multicast_add_router(br, port, rlist, mc_router_list);
- mod_timer(timer, now + br->multicast_querier_interval);
+ br_multicast_add_router(brmctx, port, rlist, mc_router_list);
+ mod_timer(timer, now + brmctx->multicast_querier_interval);
}
static void br_ip4_multicast_mark_router(struct net_bridge *br,
struct net_bridge_port *port)
{
- struct timer_list *timer = &br->ip4_mc_router_timer;
+ struct timer_list *timer = &br->multicast_ctx.ip4_mc_router_timer;
struct hlist_node *rlist = NULL;
if (port) {
@@ -2871,14 +2894,14 @@ static void br_ip4_multicast_mark_router(struct
net_bridge *br,
}
br_multicast_mark_router(br, port, timer, rlist,
- &br->ip4_mc_router_list);
+ &br->multicast_ctx.ip4_mc_router_list);
}
static void br_ip6_multicast_mark_router(struct net_bridge *br,
struct net_bridge_port *port)
{
#if IS_ENABLED(CONFIG_IPV6)
- struct timer_list *timer = &br->ip6_mc_router_timer;
+ struct timer_list *timer = &br->multicast_ctx.ip6_mc_router_timer;
struct hlist_node *rlist = NULL;
if (port) {
@@ -2887,7 +2910,7 @@ static void br_ip6_multicast_mark_router(struct net_bridge
*br,
}
br_multicast_mark_router(br, port, timer, rlist,
- &br->ip6_mc_router_list);
+ &br->multicast_ctx.ip6_mc_router_list);
#endif
}
@@ -2926,6 +2949,7 @@ static void br_ip4_multicast_query(struct net_bridge *br,
struct sk_buff *skb,
u16 vid)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
unsigned int transport_len = ip_transport_len(skb);
const struct iphdr *iph = ip_hdr(skb);
struct igmphdr *ih = igmp_hdr(skb);
@@ -2955,7 +2979,8 @@ static void br_ip4_multicast_query(struct net_bridge *br,
} else if (transport_len >= sizeof(*ih3)) {
ih3 = igmpv3_query_hdr(skb);
if (ih3->nsrcs ||
- (br->multicast_igmp_version == 3 && group &&
ih3->suppress))
+ (brmctx->multicast_igmp_version == 3 && group &&
+ ih3->suppress))
goto out;
max_delay = ih3->code ?
@@ -2968,7 +2993,8 @@ static void br_ip4_multicast_query(struct net_bridge *br,
saddr.proto = htons(ETH_P_IP);
saddr.src.ip4 = iph->saddr;
- br_ip4_multicast_query_received(br, port, &br->ip4_other_query,
+ br_ip4_multicast_query_received(br, port,
+ &brmctx->ip4_other_query,
&saddr, max_delay);
goto out;
}
@@ -2977,7 +3003,7 @@ static void br_ip4_multicast_query(struct net_bridge *br,
if (!mp)
goto out;
- max_delay *= br->multicast_last_member_count;
+ max_delay *= brmctx->multicast_last_member_count;
if (mp->host_joined &&
(timer_pending(&mp->timer) ?
@@ -2991,7 +3017,7 @@ static void br_ip4_multicast_query(struct net_bridge *br,
if (timer_pending(&p->timer) ?
time_after(p->timer.expires, now + max_delay) :
try_to_del_timer_sync(&p->timer) >= 0 &&
- (br->multicast_igmp_version == 2 ||
+ (brmctx->multicast_igmp_version == 2 ||
p->filter_mode == MCAST_EXCLUDE))
mod_timer(&p->timer, now + max_delay);
}
@@ -3006,6 +3032,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
struct sk_buff *skb,
u16 vid)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
unsigned int transport_len = ipv6_transport_len(skb);
struct mld_msg *mld;
struct net_bridge_mdb_entry *mp;
@@ -3042,7 +3069,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
mld2q = (struct mld2_query *)icmp6_hdr(skb);
if (!mld2q->mld2q_nsrcs)
group = &mld2q->mld2q_mca;
- if (br->multicast_mld_version == 2 &&
+ if (brmctx->multicast_mld_version == 2 &&
!ipv6_addr_any(&mld2q->mld2q_mca) &&
mld2q->mld2q_suppress)
goto out;
@@ -3056,7 +3083,8 @@ static int br_ip6_multicast_query(struct net_bridge *br,
saddr.proto = htons(ETH_P_IPV6);
saddr.src.ip6 = ipv6_hdr(skb)->saddr;
- br_ip6_multicast_query_received(br, port, &br->ip6_other_query,
+ br_ip6_multicast_query_received(br, port,
+ &brmctx->ip6_other_query,
&saddr, max_delay);
goto out;
} else if (!group) {
@@ -3067,7 +3095,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
if (!mp)
goto out;
- max_delay *= br->multicast_last_member_count;
+ max_delay *= brmctx->multicast_last_member_count;
if (mp->host_joined &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, now + max_delay) :
@@ -3080,7 +3108,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
if (timer_pending(&p->timer) ?
time_after(p->timer.expires, now + max_delay) :
try_to_del_timer_sync(&p->timer) >= 0 &&
- (br->multicast_mld_version == 1 ||
+ (brmctx->multicast_mld_version == 1 ||
p->filter_mode == MCAST_EXCLUDE))
mod_timer(&p->timer, now + max_delay);
}
@@ -3099,6 +3127,7 @@ br_multicast_leave_group(struct net_bridge *br,
struct bridge_mcast_own_query *own_query,
const unsigned char *src)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct net_bridge_mdb_entry *mp;
struct net_bridge_port_group *p;
unsigned long now;
@@ -3138,8 +3167,8 @@ br_multicast_leave_group(struct net_bridge *br,
__br_multicast_send_query(br, port, NULL, NULL, &mp->addr,
false, 0, NULL);
- time = jiffies + br->multicast_last_member_count *
- br->multicast_last_member_interval;
+ time = jiffies + brmctx->multicast_last_member_count *
+ brmctx->multicast_last_member_interval;
mod_timer(&own_query->timer, time);
@@ -3161,8 +3190,8 @@ br_multicast_leave_group(struct net_bridge *br,
}
now = jiffies;
- time = now + br->multicast_last_member_count *
- br->multicast_last_member_interval;
+ time = now + brmctx->multicast_last_member_count *
+ brmctx->multicast_last_member_interval;
if (!port) {
if (mp->host_joined &&
@@ -3207,14 +3236,15 @@ static void br_ip4_multicast_leave_group(struct
net_bridge *br,
return;
own_query = port ? &port->multicast_ctx.ip4_own_query :
- &br->ip4_own_query;
+ &br->multicast_ctx.ip4_own_query;
memset(&br_group, 0, sizeof(br_group));
br_group.dst.ip4 = group;
br_group.proto = htons(ETH_P_IP);
br_group.vid = vid;
- br_multicast_leave_group(br, port, &br_group, &br->ip4_other_query,
+ br_multicast_leave_group(br, port, &br_group,
+ &br->multicast_ctx.ip4_other_query,
own_query, src);
}
@@ -3232,14 +3262,15 @@ static void br_ip6_multicast_leave_group(struct
net_bridge *br,
return;
own_query = port ? &port->multicast_ctx.ip6_own_query :
- &br->ip6_own_query;
+ &br->multicast_ctx.ip6_own_query;
memset(&br_group, 0, sizeof(br_group));
br_group.dst.ip6 = *group;
br_group.proto = htons(ETH_P_IPV6);
br_group.vid = vid;
- br_multicast_leave_group(br, port, &br_group, &br->ip6_other_query,
+ br_multicast_leave_group(br, port, &br_group,
+ &br->multicast_ctx.ip6_other_query,
own_query, src);
}
#endif
@@ -3460,7 +3491,7 @@ static void br_multicast_query_expired(struct net_bridge
*br,
struct bridge_mcast_querier *querier)
{
spin_lock(&br->multicast_lock);
- if (query->startup_sent < br->multicast_startup_query_count)
+ if (query->startup_sent <
br->multicast_ctx.multicast_startup_query_count)
query->startup_sent++;
RCU_INIT_POINTER(querier->port, NULL);
@@ -3470,17 +3501,21 @@ static void br_multicast_query_expired(struct net_bridge
*br,
static void br_ip4_multicast_query_expired(struct timer_list *t)
{
- struct net_bridge *br = from_timer(br, t, ip4_own_query.timer);
+ struct net_bridge_mcast *brmctx = from_timer(brmctx, t,
+ ip4_own_query.timer);
- br_multicast_query_expired(br, &br->ip4_own_query,
&br->ip4_querier);
+ br_multicast_query_expired(brmctx->br, &brmctx->ip4_own_query,
+ &brmctx->ip4_querier);
}
#if IS_ENABLED(CONFIG_IPV6)
static void br_ip6_multicast_query_expired(struct timer_list *t)
{
- struct net_bridge *br = from_timer(br, t, ip6_own_query.timer);
+ struct net_bridge_mcast *brmctx = from_timer(brmctx, t,
+ ip6_own_query.timer);
- br_multicast_query_expired(br, &br->ip6_own_query,
&br->ip6_querier);
+ br_multicast_query_expired(brmctx->br, &brmctx->ip6_own_query,
+ &brmctx->ip6_querier);
}
#endif
@@ -3501,41 +3536,42 @@ void br_multicast_init(struct net_bridge *br)
{
br->hash_max = BR_MULTICAST_DEFAULT_HASH_MAX;
- br->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
- br->multicast_last_member_count = 2;
- br->multicast_startup_query_count = 2;
-
- br->multicast_last_member_interval = HZ;
- br->multicast_query_response_interval = 10 * HZ;
- br->multicast_startup_query_interval = 125 * HZ / 4;
- br->multicast_query_interval = 125 * HZ;
- br->multicast_querier_interval = 255 * HZ;
- br->multicast_membership_interval = 260 * HZ;
-
- br->ip4_other_query.delay_time = 0;
- br->ip4_querier.port = NULL;
- br->multicast_igmp_version = 2;
+ br->multicast_ctx.br = br;
+ br->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
+ br->multicast_ctx.multicast_last_member_count = 2;
+ br->multicast_ctx.multicast_startup_query_count = 2;
+
+ br->multicast_ctx.multicast_last_member_interval = HZ;
+ br->multicast_ctx.multicast_query_response_interval = 10 * HZ;
+ br->multicast_ctx.multicast_startup_query_interval = 125 * HZ / 4;
+ br->multicast_ctx.multicast_query_interval = 125 * HZ;
+ br->multicast_ctx.multicast_querier_interval = 255 * HZ;
+ br->multicast_ctx.multicast_membership_interval = 260 * HZ;
+
+ br->multicast_ctx.ip4_other_query.delay_time = 0;
+ br->multicast_ctx.ip4_querier.port = NULL;
+ br->multicast_ctx.multicast_igmp_version = 2;
#if IS_ENABLED(CONFIG_IPV6)
- br->multicast_mld_version = 1;
- br->ip6_other_query.delay_time = 0;
- br->ip6_querier.port = NULL;
+ br->multicast_ctx.multicast_mld_version = 1;
+ br->multicast_ctx.ip6_other_query.delay_time = 0;
+ br->multicast_ctx.ip6_querier.port = NULL;
#endif
br_opt_toggle(br, BROPT_MULTICAST_ENABLED, true);
br_opt_toggle(br, BROPT_HAS_IPV6_ADDR, true);
spin_lock_init(&br->multicast_lock);
- timer_setup(&br->ip4_mc_router_timer,
+ timer_setup(&br->multicast_ctx.ip4_mc_router_timer,
br_ip4_multicast_local_router_expired, 0);
- timer_setup(&br->ip4_other_query.timer,
+ timer_setup(&br->multicast_ctx.ip4_other_query.timer,
br_ip4_multicast_querier_expired, 0);
- timer_setup(&br->ip4_own_query.timer,
+ timer_setup(&br->multicast_ctx.ip4_own_query.timer,
br_ip4_multicast_query_expired, 0);
#if IS_ENABLED(CONFIG_IPV6)
- timer_setup(&br->ip6_mc_router_timer,
+ timer_setup(&br->multicast_ctx.ip6_mc_router_timer,
br_ip6_multicast_local_router_expired, 0);
- timer_setup(&br->ip6_other_query.timer,
+ timer_setup(&br->multicast_ctx.ip6_other_query.timer,
br_ip6_multicast_querier_expired, 0);
- timer_setup(&br->ip6_own_query.timer,
+ timer_setup(&br->multicast_ctx.ip6_own_query.timer,
br_ip6_multicast_query_expired, 0);
#endif
INIT_HLIST_HEAD(&br->mdb_list);
@@ -3618,21 +3654,21 @@ static void __br_multicast_open(struct net_bridge *br,
void br_multicast_open(struct net_bridge *br)
{
- __br_multicast_open(br, &br->ip4_own_query);
+ __br_multicast_open(br, &br->multicast_ctx.ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
- __br_multicast_open(br, &br->ip6_own_query);
+ __br_multicast_open(br, &br->multicast_ctx.ip6_own_query);
#endif
}
void br_multicast_stop(struct net_bridge *br)
{
- del_timer_sync(&br->ip4_mc_router_timer);
- del_timer_sync(&br->ip4_other_query.timer);
- del_timer_sync(&br->ip4_own_query.timer);
+ del_timer_sync(&br->multicast_ctx.ip4_mc_router_timer);
+ del_timer_sync(&br->multicast_ctx.ip4_other_query.timer);
+ del_timer_sync(&br->multicast_ctx.ip4_own_query.timer);
#if IS_ENABLED(CONFIG_IPV6)
- del_timer_sync(&br->ip6_mc_router_timer);
- del_timer_sync(&br->ip6_other_query.timer);
- del_timer_sync(&br->ip6_own_query.timer);
+ del_timer_sync(&br->multicast_ctx.ip6_mc_router_timer);
+ del_timer_sync(&br->multicast_ctx.ip6_other_query.timer);
+ del_timer_sync(&br->multicast_ctx.ip6_own_query.timer);
#endif
}
@@ -3656,6 +3692,7 @@ void br_multicast_dev_del(struct net_bridge *br)
int br_multicast_set_router(struct net_bridge *br, unsigned long val)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
int err = -EINVAL;
spin_lock_bh(&br->multicast_lock);
@@ -3664,17 +3701,17 @@ int br_multicast_set_router(struct net_bridge *br,
unsigned long val)
case MDB_RTR_TYPE_DISABLED:
case MDB_RTR_TYPE_PERM:
br_mc_router_state_change(br, val == MDB_RTR_TYPE_PERM);
- del_timer(&br->ip4_mc_router_timer);
+ del_timer(&brmctx->ip4_mc_router_timer);
#if IS_ENABLED(CONFIG_IPV6)
- del_timer(&br->ip6_mc_router_timer);
+ del_timer(&brmctx->ip6_mc_router_timer);
#endif
- br->multicast_router = val;
+ brmctx->multicast_router = val;
err = 0;
break;
case MDB_RTR_TYPE_TEMP_QUERY:
- if (br->multicast_router != MDB_RTR_TYPE_TEMP_QUERY)
+ if (brmctx->multicast_router != MDB_RTR_TYPE_TEMP_QUERY)
br_mc_router_state_change(br, false);
- br->multicast_router = val;
+ brmctx->multicast_router = val;
err = 0;
break;
}
@@ -3710,20 +3747,20 @@ br_multicast_rport_del_notify(struct net_bridge_port *p,
bool deleted)
int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val)
{
- struct net_bridge *br = p->br;
+ struct net_bridge_mcast *brmctx = &p->br->multicast_ctx;
unsigned long now = jiffies;
int err = -EINVAL;
bool del = false;
- spin_lock(&br->multicast_lock);
+ spin_lock(&p->br->multicast_lock);
if (p->multicast_ctx.multicast_router == val) {
/* Refresh the temp router port timer */
if (p->multicast_ctx.multicast_router == MDB_RTR_TYPE_TEMP) {
mod_timer(&p->multicast_ctx.ip4_mc_router_timer,
- now + br->multicast_querier_interval);
+ now + brmctx->multicast_querier_interval);
#if IS_ENABLED(CONFIG_IPV6)
mod_timer(&p->multicast_ctx.ip6_mc_router_timer,
- now + br->multicast_querier_interval);
+ now + brmctx->multicast_querier_interval);
#endif
}
err = 0;
@@ -3749,23 +3786,23 @@ int br_multicast_set_port_router(struct net_bridge_port
*p, unsigned long val)
case MDB_RTR_TYPE_PERM:
p->multicast_ctx.multicast_router = MDB_RTR_TYPE_PERM;
del_timer(&p->multicast_ctx.ip4_mc_router_timer);
- br_ip4_multicast_add_router(br, p);
+ br_ip4_multicast_add_router(p->br, p);
#if IS_ENABLED(CONFIG_IPV6)
del_timer(&p->multicast_ctx.ip6_mc_router_timer);
#endif
- br_ip6_multicast_add_router(br, p);
+ br_ip6_multicast_add_router(p->br, p);
break;
case MDB_RTR_TYPE_TEMP:
p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP;
- br_ip4_multicast_mark_router(br, p);
- br_ip6_multicast_mark_router(br, p);
+ br_ip4_multicast_mark_router(p->br, p);
+ br_ip6_multicast_mark_router(p->br, p);
break;
default:
goto unlock;
}
err = 0;
unlock:
- spin_unlock(&br->multicast_lock);
+ spin_unlock(&p->br->multicast_lock);
return err;
}
@@ -3783,7 +3820,7 @@ static void br_multicast_start_querier(struct net_bridge
*br,
port->state == BR_STATE_BLOCKING)
continue;
- if (query == &br->ip4_own_query)
+ if (query == &br->multicast_ctx.ip4_own_query)
br_multicast_enable(&port->multicast_ctx.ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
else
@@ -3872,6 +3909,7 @@ EXPORT_SYMBOL_GPL(br_multicast_router);
int br_multicast_set_querier(struct net_bridge *br, unsigned long val)
{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
unsigned long max_delay;
val = !!val;
@@ -3884,18 +3922,18 @@ int br_multicast_set_querier(struct net_bridge *br,
unsigned long val)
if (!val)
goto unlock;
- max_delay = br->multicast_query_response_interval;
+ max_delay = brmctx->multicast_query_response_interval;
- if (!timer_pending(&br->ip4_other_query.timer))
- br->ip4_other_query.delay_time = jiffies + max_delay;
+ if (!timer_pending(&brmctx->ip4_other_query.timer))
+ brmctx->ip4_other_query.delay_time = jiffies + max_delay;
- br_multicast_start_querier(br, &br->ip4_own_query);
+ br_multicast_start_querier(br, &brmctx->ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
- if (!timer_pending(&br->ip6_other_query.timer))
- br->ip6_other_query.delay_time = jiffies + max_delay;
+ if (!timer_pending(&brmctx->ip6_other_query.timer))
+ brmctx->ip6_other_query.delay_time = jiffies + max_delay;
- br_multicast_start_querier(br, &br->ip6_own_query);
+ br_multicast_start_querier(br, &brmctx->ip6_own_query);
#endif
unlock:
@@ -3916,7 +3954,7 @@ int br_multicast_set_igmp_version(struct net_bridge *br,
unsigned long val)
}
spin_lock_bh(&br->multicast_lock);
- br->multicast_igmp_version = val;
+ br->multicast_ctx.multicast_igmp_version = val;
spin_unlock_bh(&br->multicast_lock);
return 0;
@@ -3935,7 +3973,7 @@ int br_multicast_set_mld_version(struct net_bridge *br,
unsigned long val)
}
spin_lock_bh(&br->multicast_lock);
- br->multicast_mld_version = val;
+ br->multicast_ctx.multicast_mld_version = val;
spin_unlock_bh(&br->multicast_lock);
return 0;
@@ -4047,6 +4085,7 @@ EXPORT_SYMBOL_GPL(br_multicast_has_querier_anywhere);
*/
bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto)
{
+ struct net_bridge_mcast *brmctx;
struct net_bridge *br;
struct net_bridge_port *port;
bool ret = false;
@@ -4060,17 +4099,18 @@ bool br_multicast_has_querier_adjacent(struct net_device
*dev, int proto)
goto unlock;
br = port->br;
+ brmctx = &br->multicast_ctx;
switch (proto) {
case ETH_P_IP:
- if (!timer_pending(&br->ip4_other_query.timer) ||
- rcu_dereference(br->ip4_querier.port) == port)
+ if (!timer_pending(&brmctx->ip4_other_query.timer) ||
+ rcu_dereference(brmctx->ip4_querier.port) == port)
goto unlock;
break;
#if IS_ENABLED(CONFIG_IPV6)
case ETH_P_IPV6:
- if (!timer_pending(&br->ip6_other_query.timer) ||
- rcu_dereference(br->ip6_querier.port) == port)
+ if (!timer_pending(&brmctx->ip6_other_query.timer) ||
+ rcu_dereference(brmctx->ip6_querier.port) == port)
goto unlock;
break;
#endif
@@ -4097,6 +4137,7 @@ EXPORT_SYMBOL_GPL(br_multicast_has_querier_adjacent);
bool br_multicast_has_router_adjacent(struct net_device *dev, int proto)
{
struct net_bridge_mcast_port *pmctx;
+ struct net_bridge_mcast *brmctx;
struct net_bridge_port *port;
bool ret = false;
@@ -4105,9 +4146,10 @@ bool br_multicast_has_router_adjacent(struct net_device
*dev, int proto)
if (!port)
goto unlock;
+ brmctx = &port->br->multicast_ctx;
switch (proto) {
case ETH_P_IP:
- hlist_for_each_entry_rcu(pmctx, &port->br->ip4_mc_router_list,
+ hlist_for_each_entry_rcu(pmctx, &brmctx->ip4_mc_router_list,
ip4_rlist) {
if (pmctx->port == port)
continue;
@@ -4118,7 +4160,7 @@ bool br_multicast_has_router_adjacent(struct net_device
*dev, int proto)
break;
#if IS_ENABLED(CONFIG_IPV6)
case ETH_P_IPV6:
- hlist_for_each_entry_rcu(pmctx, &port->br->ip6_mc_router_list,
+ hlist_for_each_entry_rcu(pmctx, &brmctx->ip6_mc_router_list,
ip6_rlist) {
if (pmctx->port == port)
continue;
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 0cbe5826cfe8..3d5860e41084 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1387,49 +1387,49 @@ static int br_changelink(struct net_device *brdev,
struct nlattr *tb[],
if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
- br->multicast_last_member_count = val;
+ br->multicast_ctx.multicast_last_member_count = val;
}
if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
- br->multicast_startup_query_count = val;
+ br->multicast_ctx.multicast_startup_query_count = val;
}
if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
- br->multicast_last_member_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_last_member_interval =
clock_t_to_jiffies(val);
}
if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
- br->multicast_membership_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_membership_interval = clock_t_to_jiffies(val);
}
if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
- br->multicast_querier_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_querier_interval = clock_t_to_jiffies(val);
}
if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
- br->multicast_query_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_query_interval = clock_t_to_jiffies(val);
}
if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
- br->multicast_query_response_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_query_response_interval =
clock_t_to_jiffies(val);
}
if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
- br->multicast_startup_query_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_startup_query_interval =
clock_t_to_jiffies(val);
}
if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
@@ -1636,7 +1636,8 @@ static int br_fill_info(struct sk_buff *skb, const struct
net_device *brdev)
return -EMSGSIZE;
#endif
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
- if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
+ if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER,
+ br->multicast_ctx.multicast_router) ||
nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING,
br_opt_get(br, BROPT_MULTICAST_ENABLED)) ||
nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
@@ -1648,38 +1649,38 @@ static int br_fill_info(struct sk_buff *skb, const
struct net_device *brdev)
nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY, RHT_ELASTICITY) ||
nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
- br->multicast_last_member_count) ||
+ br->multicast_ctx.multicast_last_member_count) ||
nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
- br->multicast_startup_query_count) ||
+ br->multicast_ctx.multicast_startup_query_count) ||
nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION,
- br->multicast_igmp_version))
+ br->multicast_ctx.multicast_igmp_version))
return -EMSGSIZE;
#if IS_ENABLED(CONFIG_IPV6)
if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION,
- br->multicast_mld_version))
+ br->multicast_ctx.multicast_mld_version))
return -EMSGSIZE;
#endif
- clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
+ clockval =
jiffies_to_clock_t(br->multicast_ctx.multicast_last_member_interval);
if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
IFLA_BR_PAD))
return -EMSGSIZE;
- clockval = jiffies_to_clock_t(br->multicast_membership_interval);
+ clockval =
jiffies_to_clock_t(br->multicast_ctx.multicast_membership_interval);
if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
IFLA_BR_PAD))
return -EMSGSIZE;
- clockval = jiffies_to_clock_t(br->multicast_querier_interval);
+ clockval =
jiffies_to_clock_t(br->multicast_ctx.multicast_querier_interval);
if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
IFLA_BR_PAD))
return -EMSGSIZE;
- clockval = jiffies_to_clock_t(br->multicast_query_interval);
+ clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_query_interval);
if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
IFLA_BR_PAD))
return -EMSGSIZE;
- clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
+ clockval =
jiffies_to_clock_t(br->multicast_ctx.multicast_query_response_interval);
if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
IFLA_BR_PAD))
return -EMSGSIZE;
- clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
+ clockval =
jiffies_to_clock_t(br->multicast_ctx.multicast_startup_query_interval);
if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
IFLA_BR_PAD))
return -EMSGSIZE;
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 61034fd8a3bd..badd490fce7a 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -106,6 +106,40 @@ struct net_bridge_mcast_port {
#endif /* CONFIG_BRIDGE_IGMP_SNOOPING */
};
+/* net_bridge_mcast must be always defined due to forwarding stubs */
+struct net_bridge_mcast {
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+ struct net_bridge *br;
+
+ u32 multicast_last_member_count;
+ u32 multicast_startup_query_count;
+
+ u8 multicast_igmp_version;
+ u8 multicast_router;
+#if IS_ENABLED(CONFIG_IPV6)
+ u8 multicast_mld_version;
+#endif
+ unsigned long multicast_last_member_interval;
+ unsigned long multicast_membership_interval;
+ unsigned long multicast_querier_interval;
+ unsigned long multicast_query_interval;
+ unsigned long multicast_query_response_interval;
+ unsigned long multicast_startup_query_interval;
+ struct hlist_head ip4_mc_router_list;
+ struct timer_list ip4_mc_router_timer;
+ struct bridge_mcast_other_query ip4_other_query;
+ struct bridge_mcast_own_query ip4_own_query;
+ struct bridge_mcast_querier ip4_querier;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct hlist_head ip6_mc_router_list;
+ struct timer_list ip6_mc_router_timer;
+ struct bridge_mcast_other_query ip6_other_query;
+ struct bridge_mcast_own_query ip6_own_query;
+ struct bridge_mcast_querier ip6_querier;
+#endif /* IS_ENABLED(CONFIG_IPV6) */
+#endif /* CONFIG_BRIDGE_IGMP_SNOOPING */
+};
+
struct br_tunnel_info {
__be64 tunnel_id;
struct metadata_dst __rcu *tunnel_dst;
@@ -445,25 +479,14 @@ struct net_bridge {
BR_USER_STP, /* new RSTP in userspace */
} stp_enabled;
+ struct net_bridge_mcast multicast_ctx;
+
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+ struct bridge_mcast_stats __percpu *mcast_stats;
u32 hash_max;
- u32 multicast_last_member_count;
- u32 multicast_startup_query_count;
-
- u8 multicast_igmp_version;
- u8 multicast_router;
-#if IS_ENABLED(CONFIG_IPV6)
- u8 multicast_mld_version;
-#endif
spinlock_t multicast_lock;
- unsigned long multicast_last_member_interval;
- unsigned long multicast_membership_interval;
- unsigned long multicast_querier_interval;
- unsigned long multicast_query_interval;
- unsigned long multicast_query_response_interval;
- unsigned long multicast_startup_query_interval;
struct rhashtable mdb_hash_tbl;
struct rhashtable sg_port_tbl;
@@ -471,19 +494,6 @@ struct net_bridge {
struct hlist_head mcast_gc_list;
struct hlist_head mdb_list;
- struct hlist_head ip4_mc_router_list;
- struct timer_list ip4_mc_router_timer;
- struct bridge_mcast_other_query ip4_other_query;
- struct bridge_mcast_own_query ip4_own_query;
- struct bridge_mcast_querier ip4_querier;
- struct bridge_mcast_stats __percpu *mcast_stats;
-#if IS_ENABLED(CONFIG_IPV6)
- struct hlist_head ip6_mc_router_list;
- struct timer_list ip6_mc_router_timer;
- struct bridge_mcast_other_query ip6_other_query;
- struct bridge_mcast_own_query ip6_own_query;
- struct bridge_mcast_querier ip6_querier;
-#endif /* IS_ENABLED(CONFIG_IPV6) */
struct work_struct mcast_gc_work;
#endif
@@ -893,16 +903,20 @@ static inline bool br_group_is_l2(const struct br_ip
*group)
rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
static inline struct hlist_node *
-br_multicast_get_first_rport_node(struct net_bridge *b, struct sk_buff *skb) {
+br_multicast_get_first_rport_node(struct net_bridge *br, struct sk_buff *skb)
+{
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
+
#if IS_ENABLED(CONFIG_IPV6)
if (skb->protocol == htons(ETH_P_IPV6))
- return rcu_dereference(hlist_first_rcu(&b->ip6_mc_router_list));
+ return rcu_dereference(hlist_first_rcu(&brmctx->ip6_mc_router_list));
#endif
- return rcu_dereference(hlist_first_rcu(&b->ip4_mc_router_list));
+ return rcu_dereference(hlist_first_rcu(&brmctx->ip4_mc_router_list));
}
static inline struct net_bridge_port *
-br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb) {
+br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb)
+{
struct net_bridge_mcast_port *mctx;
#if IS_ENABLED(CONFIG_IPV6)
@@ -920,15 +934,15 @@ br_multicast_rport_from_node_skb(struct hlist_node *rp,
struct sk_buff *skb) {
return NULL;
}
-static inline bool br_ip4_multicast_is_router(struct net_bridge *br)
+static inline bool br_ip4_multicast_is_router(struct net_bridge_mcast *brmctx)
{
- return timer_pending(&br->ip4_mc_router_timer);
+ return timer_pending(&brmctx->ip4_mc_router_timer);
}
-static inline bool br_ip6_multicast_is_router(struct net_bridge *br)
+static inline bool br_ip6_multicast_is_router(struct net_bridge_mcast *brmctx)
{
#if IS_ENABLED(CONFIG_IPV6)
- return timer_pending(&br->ip6_mc_router_timer);
+ return timer_pending(&brmctx->ip6_mc_router_timer);
#else
return false;
#endif
@@ -937,18 +951,20 @@ static inline bool br_ip6_multicast_is_router(struct
net_bridge *br)
static inline bool
br_multicast_is_router(struct net_bridge *br, struct sk_buff *skb)
{
- switch (br->multicast_router) {
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
+
+ switch (brmctx->multicast_router) {
case MDB_RTR_TYPE_PERM:
return true;
case MDB_RTR_TYPE_TEMP_QUERY:
if (skb) {
if (skb->protocol == htons(ETH_P_IP))
- return br_ip4_multicast_is_router(br);
+ return br_ip4_multicast_is_router(brmctx);
else if (skb->protocol == htons(ETH_P_IPV6))
- return br_ip6_multicast_is_router(br);
+ return br_ip6_multicast_is_router(brmctx);
} else {
- return br_ip4_multicast_is_router(br) ||
- br_ip6_multicast_is_router(br);
+ return br_ip4_multicast_is_router(brmctx) ||
+ br_ip6_multicast_is_router(brmctx);
}
fallthrough;
default:
@@ -983,11 +999,11 @@ static inline bool br_multicast_querier_exists(struct
net_bridge *br,
switch (eth->h_proto) {
case (htons(ETH_P_IP)):
return __br_multicast_querier_exists(br,
- &br->ip4_other_query, false);
+ &br->multicast_ctx.ip4_other_query, false);
#if IS_ENABLED(CONFIG_IPV6)
case (htons(ETH_P_IPV6)):
return __br_multicast_querier_exists(br,
- &br->ip6_other_query, true);
+ &br->multicast_ctx.ip6_other_query, true);
#endif
default:
return !!mdb && br_group_is_l2(&mdb->addr);
@@ -1013,10 +1029,10 @@ static inline bool br_multicast_should_handle_mode(const
struct net_bridge *br,
{
switch (proto) {
case htons(ETH_P_IP):
- return !!(br->multicast_igmp_version == 3);
+ return !!(br->multicast_ctx.multicast_igmp_version == 3);
#if IS_ENABLED(CONFIG_IPV6)
case htons(ETH_P_IPV6):
- return !!(br->multicast_mld_version == 2);
+ return !!(br->multicast_ctx.multicast_mld_version == 2);
#endif
default:
return false;
@@ -1030,15 +1046,15 @@ static inline int br_multicast_igmp_type(const struct
sk_buff *skb)
static inline unsigned long br_multicast_lmqt(const struct net_bridge *br)
{
- return br->multicast_last_member_interval *
- br->multicast_last_member_count;
+ return br->multicast_ctx.multicast_last_member_interval *
+ br->multicast_ctx.multicast_last_member_count;
}
static inline unsigned long br_multicast_gmi(const struct net_bridge *br)
{
/* use the RFC default of 2 for QRV */
- return 2 * br->multicast_query_interval +
- br->multicast_query_response_interval;
+ return 2 * br->multicast_ctx.multicast_query_interval +
+ br->multicast_ctx.multicast_query_response_interval;
}
#else
static inline int br_multicast_rcv(struct net_bridge *br,
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 381467b691d5..953d544663d5 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -384,7 +384,7 @@ static ssize_t multicast_router_show(struct device *d,
struct device_attribute *attr, char *buf)
{
struct net_bridge *br = to_bridge(d);
- return sprintf(buf, "%d\n", br->multicast_router);
+ return sprintf(buf, "%d\n", br->multicast_ctx.multicast_router);
}
static int set_multicast_router(struct net_bridge *br, unsigned long val,
@@ -514,7 +514,7 @@ static ssize_t multicast_igmp_version_show(struct device *d,
{
struct net_bridge *br = to_bridge(d);
- return sprintf(buf, "%u\n", br->multicast_igmp_version);
+ return sprintf(buf, "%u\n",
br->multicast_ctx.multicast_igmp_version);
}
static int set_multicast_igmp_version(struct net_bridge *br, unsigned long val,
@@ -536,13 +536,13 @@ static ssize_t multicast_last_member_count_show(struct
device *d,
char *buf)
{
struct net_bridge *br = to_bridge(d);
- return sprintf(buf, "%u\n", br->multicast_last_member_count);
+ return sprintf(buf, "%u\n",
br->multicast_ctx.multicast_last_member_count);
}
static int set_last_member_count(struct net_bridge *br, unsigned long val,
struct netlink_ext_ack *extack)
{
- br->multicast_last_member_count = val;
+ br->multicast_ctx.multicast_last_member_count = val;
return 0;
}
@@ -558,13 +558,13 @@ static ssize_t multicast_startup_query_count_show(
struct device *d, struct device_attribute *attr, char *buf)
{
struct net_bridge *br = to_bridge(d);
- return sprintf(buf, "%u\n", br->multicast_startup_query_count);
+ return sprintf(buf, "%u\n",
br->multicast_ctx.multicast_startup_query_count);
}
static int set_startup_query_count(struct net_bridge *br, unsigned long val,
struct netlink_ext_ack *extack)
{
- br->multicast_startup_query_count = val;
+ br->multicast_ctx.multicast_startup_query_count = val;
return 0;
}
@@ -581,13 +581,13 @@ static ssize_t multicast_last_member_interval_show(
{
struct net_bridge *br = to_bridge(d);
return sprintf(buf, "%lu\n",
- jiffies_to_clock_t(br->multicast_last_member_interval));
+
jiffies_to_clock_t(br->multicast_ctx.multicast_last_member_interval));
}
static int set_last_member_interval(struct net_bridge *br, unsigned long val,
struct netlink_ext_ack *extack)
{
- br->multicast_last_member_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_last_member_interval = clock_t_to_jiffies(val);
return 0;
}
@@ -604,13 +604,13 @@ static ssize_t multicast_membership_interval_show(
{
struct net_bridge *br = to_bridge(d);
return sprintf(buf, "%lu\n",
- jiffies_to_clock_t(br->multicast_membership_interval));
+
jiffies_to_clock_t(br->multicast_ctx.multicast_membership_interval));
}
static int set_membership_interval(struct net_bridge *br, unsigned long val,
struct netlink_ext_ack *extack)
{
- br->multicast_membership_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_membership_interval = clock_t_to_jiffies(val);
return 0;
}
@@ -628,13 +628,13 @@ static ssize_t multicast_querier_interval_show(struct
device *d,
{
struct net_bridge *br = to_bridge(d);
return sprintf(buf, "%lu\n",
- jiffies_to_clock_t(br->multicast_querier_interval));
+ jiffies_to_clock_t(br->multicast_ctx.multicast_querier_interval));
}
static int set_querier_interval(struct net_bridge *br, unsigned long val,
struct netlink_ext_ack *extack)
{
- br->multicast_querier_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_querier_interval = clock_t_to_jiffies(val);
return 0;
}
@@ -652,13 +652,13 @@ static ssize_t multicast_query_interval_show(struct device
*d,
{
struct net_bridge *br = to_bridge(d);
return sprintf(buf, "%lu\n",
- jiffies_to_clock_t(br->multicast_query_interval));
+ jiffies_to_clock_t(br->multicast_ctx.multicast_query_interval));
}
static int set_query_interval(struct net_bridge *br, unsigned long val,
struct netlink_ext_ack *extack)
{
- br->multicast_query_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_query_interval = clock_t_to_jiffies(val);
return 0;
}
@@ -676,13 +676,13 @@ static ssize_t multicast_query_response_interval_show(
struct net_bridge *br = to_bridge(d);
return sprintf(
buf, "%lu\n",
- jiffies_to_clock_t(br->multicast_query_response_interval));
+ jiffies_to_clock_t(br->multicast_ctx.multicast_query_response_interval));
}
static int set_query_response_interval(struct net_bridge *br, unsigned long
val,
struct netlink_ext_ack *extack)
{
- br->multicast_query_response_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_query_response_interval =
clock_t_to_jiffies(val);
return 0;
}
@@ -700,13 +700,13 @@ static ssize_t multicast_startup_query_interval_show(
struct net_bridge *br = to_bridge(d);
return sprintf(
buf, "%lu\n",
- jiffies_to_clock_t(br->multicast_startup_query_interval));
+ jiffies_to_clock_t(br->multicast_ctx.multicast_startup_query_interval));
}
static int set_startup_query_interval(struct net_bridge *br, unsigned long val,
struct netlink_ext_ack *extack)
{
- br->multicast_startup_query_interval = clock_t_to_jiffies(val);
+ br->multicast_ctx.multicast_startup_query_interval =
clock_t_to_jiffies(val);
return 0;
}
@@ -751,7 +751,7 @@ static ssize_t multicast_mld_version_show(struct device *d,
{
struct net_bridge *br = to_bridge(d);
- return sprintf(buf, "%u\n", br->multicast_mld_version);
+ return sprintf(buf, "%u\n",
br->multicast_ctx.multicast_mld_version);
}
static int set_multicast_mld_version(struct net_bridge *br, unsigned long val,
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 03/15] net: bridge: multicast: use multicast contexts instead of bridge or port
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Pass multicast context pointers to multicast functions instead of bridge/port.
This would make it easier later to switch these contexts to their per-vlan
versions. The patch is basically search and replace, no functional changes.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
net/bridge/br_device.c | 9 +-
net/bridge/br_forward.c | 7 +-
net/bridge/br_input.c | 14 +-
net/bridge/br_mdb.c | 2 +-
net/bridge/br_multicast.c | 889 ++++++++++++++++--------------
net/bridge/br_multicast_eht.c | 92 ++--
net/bridge/br_private.h | 74 +--
net/bridge/br_private_mcast_eht.h | 3 +-
8 files changed, 575 insertions(+), 515 deletions(-)
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index e8b626cc6bfd..e815bf4f9f24 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -28,6 +28,7 @@ EXPORT_SYMBOL_GPL(nf_br_ops);
netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct net_bridge *br = netdev_priv(dev);
+ struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct net_bridge_fdb_entry *dst;
struct net_bridge_mdb_entry *mdst;
const struct nf_br_ops *nf_ops;
@@ -82,15 +83,15 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct
net_device *dev)
br_flood(br, skb, BR_PKT_MULTICAST, false, true);
goto out;
}
- if (br_multicast_rcv(br, NULL, skb, vid)) {
+ if (br_multicast_rcv(brmctx, NULL, skb, vid)) {
kfree_skb(skb);
goto out;
}
- mdst = br_mdb_get(br, skb, vid);
+ mdst = br_mdb_get(brmctx, skb, vid);
if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
- br_multicast_querier_exists(br, eth_hdr(skb), mdst))
- br_multicast_flood(mdst, skb, false, true);
+ br_multicast_querier_exists(brmctx, eth_hdr(skb), mdst))
+ br_multicast_flood(mdst, skb, brmctx, false, true);
else
br_flood(br, skb, BR_PKT_MULTICAST, false, true);
} else if ((dst = br_fdb_find_rcu(br, dest, vid)) != NULL) {
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index 07856362538f..bfdbaf3015b9 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -267,20 +267,19 @@ static void maybe_deliver_addr(struct net_bridge_port *p,
struct sk_buff *skb,
/* called with rcu_read_lock */
void br_multicast_flood(struct net_bridge_mdb_entry *mdst,
struct sk_buff *skb,
+ struct net_bridge_mcast *brmctx,
bool local_rcv, bool local_orig)
{
- struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;
- struct net_bridge *br = netdev_priv(dev);
struct net_bridge_port *prev = NULL;
struct net_bridge_port_group *p;
bool allow_mode_include = true;
struct hlist_node *rp;
- rp = br_multicast_get_first_rport_node(br, skb);
+ rp = br_multicast_get_first_rport_node(brmctx, skb);
if (mdst) {
p = rcu_dereference(mdst->ports);
- if (br_multicast_should_handle_mode(br, mdst->addr.proto) &&
+ if (br_multicast_should_handle_mode(brmctx, mdst->addr.proto) &&
br_multicast_is_star_g(&mdst->addr))
allow_mode_include = false;
} else {
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 1f506309efa8..bb2036dd4934 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -69,8 +69,10 @@ int br_handle_frame_finish(struct net *net, struct sock *sk,
struct sk_buff *skb
struct net_bridge_port *p = br_port_get_rcu(skb->dev);
enum br_pkt_type pkt_type = BR_PKT_UNICAST;
struct net_bridge_fdb_entry *dst = NULL;
+ struct net_bridge_mcast_port *pmctx;
struct net_bridge_mdb_entry *mdst;
bool local_rcv, mcast_hit = false;
+ struct net_bridge_mcast *brmctx;
struct net_bridge *br;
u16 vid = 0;
u8 state;
@@ -78,6 +80,8 @@ int br_handle_frame_finish(struct net *net, struct sock *sk,
struct sk_buff *skb
if (!p || p->state == BR_STATE_DISABLED)
goto drop;
+ brmctx = &p->br->multicast_ctx;
+ pmctx = &p->multicast_ctx;
state = p->state;
if (!br_allowed_ingress(p->br, nbp_vlan_group_rcu(p), skb, &vid,
&state))
@@ -98,7 +102,7 @@ int br_handle_frame_finish(struct net *net, struct sock *sk,
struct sk_buff *skb
local_rcv = true;
} else {
pkt_type = BR_PKT_MULTICAST;
- if (br_multicast_rcv(br, p, skb, vid))
+ if (br_multicast_rcv(brmctx, pmctx, skb, vid))
goto drop;
}
}
@@ -128,11 +132,11 @@ int br_handle_frame_finish(struct net *net, struct sock
*sk, struct sk_buff *skb
switch (pkt_type) {
case BR_PKT_MULTICAST:
- mdst = br_mdb_get(br, skb, vid);
+ mdst = br_mdb_get(brmctx, skb, vid);
if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
- br_multicast_querier_exists(br, eth_hdr(skb), mdst)) {
+ br_multicast_querier_exists(brmctx, eth_hdr(skb), mdst)) {
if ((mdst && mdst->host_joined) ||
- br_multicast_is_router(br, skb)) {
+ br_multicast_is_router(brmctx, skb)) {
local_rcv = true;
br->dev->stats.multicast++;
}
@@ -162,7 +166,7 @@ int br_handle_frame_finish(struct net *net, struct sock *sk,
struct sk_buff *skb
if (!mcast_hit)
br_flood(br, skb, pkt_type, local_rcv, false);
else
- br_multicast_flood(mdst, skb, local_rcv, false);
+ br_multicast_flood(mdst, skb, brmctx, local_rcv, false);
}
if (local_rcv)
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index effe03c08038..5319587198eb 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -1092,7 +1092,7 @@ static int br_mdb_add_group(struct net_bridge *br, struct
net_bridge_port *port,
* a new INCLUDE port (S,G) then all of *,G EXCLUDE ports need to be
* added to it for proper replication
*/
- if (br_multicast_should_handle_mode(br, group.proto)) {
+ if (br_multicast_should_handle_mode(&br->multicast_ctx, group.proto)) {
switch (filter_mode) {
case MCAST_EXCLUDE:
br_multicast_star_g_handle_mode(p, MCAST_EXCLUDE);
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 92bfc1d95cd5..64145e48a0a5 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -49,30 +49,30 @@ static const struct rhashtable_params br_sg_port_rht_params
= {
.automatic_shrinking = true,
};
-static void br_multicast_start_querier(struct net_bridge *br,
+static void br_multicast_start_querier(struct net_bridge_mcast *brmctx,
struct bridge_mcast_own_query *query);
-static void br_ip4_multicast_add_router(struct net_bridge *br,
- struct net_bridge_port *port);
-static void br_ip4_multicast_leave_group(struct net_bridge *br,
- struct net_bridge_port *port,
+static void br_ip4_multicast_add_router(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx);
+static void br_ip4_multicast_leave_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
__be32 group,
__u16 vid,
const unsigned char *src);
static void br_multicast_port_group_rexmit(struct timer_list *t);
static void
-br_multicast_rport_del_notify(struct net_bridge_port *p, bool deleted);
-static void br_ip6_multicast_add_router(struct net_bridge *br,
- struct net_bridge_port *port);
+br_multicast_rport_del_notify(struct net_bridge_mcast_port *pmctx, bool
deleted);
+static void br_ip6_multicast_add_router(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx);
#if IS_ENABLED(CONFIG_IPV6)
-static void br_ip6_multicast_leave_group(struct net_bridge *br,
- struct net_bridge_port *port,
+static void br_ip6_multicast_leave_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
const struct in6_addr *group,
__u16 vid, const unsigned char *src);
#endif
static struct net_bridge_port_group *
-__br_multicast_add_group(struct net_bridge *br,
- struct net_bridge_port *port,
+__br_multicast_add_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct br_ip *group,
const unsigned char *src,
u8 filter_mode,
@@ -140,9 +140,10 @@ static struct net_bridge_mdb_entry *br_mdb_ip6_get(struct
net_bridge *br,
}
#endif
-struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
+struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx,
struct sk_buff *skb, u16 vid)
{
+ struct net_bridge *br = brmctx->br;
struct br_ip ip;
if (!br_opt_get(br, BROPT_MULTICAST_ENABLED))
@@ -158,7 +159,7 @@ struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge
*br,
switch (skb->protocol) {
case htons(ETH_P_IP):
ip.dst.ip4 = ip_hdr(skb)->daddr;
- if (br->multicast_ctx.multicast_igmp_version == 3) {
+ if (brmctx->multicast_igmp_version == 3) {
struct net_bridge_mdb_entry *mdb;
ip.src.ip4 = ip_hdr(skb)->saddr;
@@ -171,7 +172,7 @@ struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge
*br,
#if IS_ENABLED(CONFIG_IPV6)
case htons(ETH_P_IPV6):
ip.dst.ip6 = ipv6_hdr(skb)->daddr;
- if (br->multicast_ctx.multicast_mld_version == 2) {
+ if (brmctx->multicast_mld_version == 2) {
struct net_bridge_mdb_entry *mdb;
ip.src.ip6 = ipv6_hdr(skb)->saddr;
@@ -203,20 +204,23 @@ static bool br_port_group_equal(struct
net_bridge_port_group *p,
return ether_addr_equal(src, p->eth_addr);
}
-static void __fwd_add_star_excl(struct net_bridge_port_group *pg,
+static void __fwd_add_star_excl(struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg,
struct br_ip *sg_ip)
{
struct net_bridge_port_group_sg_key sg_key;
- struct net_bridge *br = pg->key.port->br;
struct net_bridge_port_group *src_pg;
+ struct net_bridge_mcast *brmctx;
memset(&sg_key, 0, sizeof(sg_key));
+ brmctx = &pg->key.port->br->multicast_ctx;
sg_key.port = pg->key.port;
sg_key.addr = *sg_ip;
- if (br_sg_port_find(br, &sg_key))
+ if (br_sg_port_find(brmctx->br, &sg_key))
return;
- src_pg = __br_multicast_add_group(br, pg->key.port, sg_ip, pg->eth_addr,
+ src_pg = __br_multicast_add_group(brmctx, pmctx,
+ sg_ip, pg->eth_addr,
MCAST_INCLUDE, false, false);
if (IS_ERR_OR_NULL(src_pg) ||
src_pg->rt_protocol != RTPROT_KERNEL)
@@ -256,6 +260,7 @@ void br_multicast_star_g_handle_mode(struct
net_bridge_port_group *pg,
{
struct net_bridge *br = pg->key.port->br;
struct net_bridge_port_group *pg_lst;
+ struct net_bridge_mcast_port *pmctx;
struct net_bridge_mdb_entry *mp;
struct br_ip sg_ip;
@@ -265,6 +270,7 @@ void br_multicast_star_g_handle_mode(struct
net_bridge_port_group *pg,
mp = br_mdb_ip_get(br, &pg->key.addr);
if (!mp)
return;
+ pmctx = &pg->key.port->multicast_ctx;
memset(&sg_ip, 0, sizeof(sg_ip));
sg_ip = pg->key.addr;
@@ -284,7 +290,7 @@ void br_multicast_star_g_handle_mode(struct
net_bridge_port_group *pg,
__fwd_del_star_excl(pg, &sg_ip);
break;
case MCAST_EXCLUDE:
- __fwd_add_star_excl(pg, &sg_ip);
+ __fwd_add_star_excl(pmctx, pg, &sg_ip);
break;
}
}
@@ -377,7 +383,9 @@ void br_multicast_sg_add_exclude_ports(struct
net_bridge_mdb_entry *star_mp,
{
struct net_bridge_port_group_sg_key sg_key;
struct net_bridge *br = star_mp->br;
+ struct net_bridge_mcast_port *pmctx;
struct net_bridge_port_group *pg;
+ struct net_bridge_mcast *brmctx;
if (WARN_ON(br_multicast_is_star_g(&sg->key.addr)))
return;
@@ -387,6 +395,7 @@ void br_multicast_sg_add_exclude_ports(struct
net_bridge_mdb_entry *star_mp,
br_multicast_sg_host_state(star_mp, sg);
memset(&sg_key, 0, sizeof(sg_key));
sg_key.addr = sg->key.addr;
+ brmctx = &br->multicast_ctx;
/* we need to add all exclude ports to the S,G */
for (pg = mlock_dereference(star_mp->ports, br);
pg;
@@ -400,7 +409,8 @@ void br_multicast_sg_add_exclude_ports(struct
net_bridge_mdb_entry *star_mp,
if (br_sg_port_find(br, &sg_key))
continue;
- src_pg = __br_multicast_add_group(br, pg->key.port,
+ pmctx = &pg->key.port->multicast_ctx;
+ src_pg = __br_multicast_add_group(brmctx, pmctx,
&sg->key.addr,
sg->eth_addr,
MCAST_INCLUDE, false, false);
@@ -414,16 +424,21 @@ void br_multicast_sg_add_exclude_ports(struct
net_bridge_mdb_entry *star_mp,
static void br_multicast_fwd_src_add(struct net_bridge_group_src *src)
{
struct net_bridge_mdb_entry *star_mp;
+ struct net_bridge_mcast_port *pmctx;
struct net_bridge_port_group *sg;
+ struct net_bridge_mcast *brmctx;
struct br_ip sg_ip;
if (src->flags & BR_SGRP_F_INSTALLED)
return;
memset(&sg_ip, 0, sizeof(sg_ip));
+ pmctx = &src->pg->key.port->multicast_ctx;
+ brmctx = &src->br->multicast_ctx;
sg_ip = src->pg->key.addr;
sg_ip.src = src->addr.src;
- sg = __br_multicast_add_group(src->br, src->pg->key.port, &sg_ip,
+
+ sg = __br_multicast_add_group(brmctx, pmctx, &sg_ip,
src->pg->eth_addr, MCAST_INCLUDE, false,
!timer_pending(&src->timer));
if (IS_ERR_OR_NULL(sg))
@@ -692,14 +707,13 @@ static void br_multicast_gc(struct hlist_head *head)
}
}
-static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge *br,
+static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge_mcast
*brmctx,
struct net_bridge_port_group *pg,
__be32 ip_dst, __be32 group,
bool with_srcs, bool over_lmqt,
u8 sflag, u8 *igmp_type,
bool *need_rexmit)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct net_bridge_port *p = pg ? pg->key.port : NULL;
struct net_bridge_group_src *ent;
size_t pkt_size, igmp_hdr_size;
@@ -735,10 +749,10 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge *br,
pkt_size = sizeof(*eth) + sizeof(*iph) + 4 + igmp_hdr_size;
if ((p && pkt_size > p->dev->mtu) ||
- pkt_size > br->dev->mtu)
+ pkt_size > brmctx->br->dev->mtu)
return NULL;
- skb = netdev_alloc_skb_ip_align(br->dev, pkt_size);
+ skb = netdev_alloc_skb_ip_align(brmctx->br->dev, pkt_size);
if (!skb)
goto out;
@@ -747,7 +761,7 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge *br,
skb_reset_mac_header(skb);
eth = eth_hdr(skb);
- ether_addr_copy(eth->h_source, br->dev->dev_addr);
+ ether_addr_copy(eth->h_source, brmctx->br->dev->dev_addr);
ip_eth_mc_map(ip_dst, eth->h_dest);
eth->h_proto = htons(ETH_P_IP);
skb_put(skb, sizeof(*eth));
@@ -763,8 +777,8 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge *br,
iph->frag_off = htons(IP_DF);
iph->ttl = 1;
iph->protocol = IPPROTO_IGMP;
- iph->saddr = br_opt_get(br, BROPT_MULTICAST_QUERY_USE_IFADDR) ?
- inet_select_addr(br->dev, 0, RT_SCOPE_LINK) : 0;
+ iph->saddr = br_opt_get(brmctx->br, BROPT_MULTICAST_QUERY_USE_IFADDR) ?
+ inet_select_addr(brmctx->br->dev, 0, RT_SCOPE_LINK) : 0;
iph->daddr = ip_dst;
((u8 *)&iph[1])[0] = IPOPT_RA;
((u8 *)&iph[1])[1] = 4;
@@ -838,7 +852,7 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge *br,
}
#if IS_ENABLED(CONFIG_IPV6)
-static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br,
+static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge_mcast
*brmctx,
struct net_bridge_port_group *pg,
const struct in6_addr *ip6_dst,
const struct in6_addr *group,
@@ -846,7 +860,6 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge *br,
u8 sflag, u8 *igmp_type,
bool *need_rexmit)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct net_bridge_port *p = pg ? pg->key.port : NULL;
struct net_bridge_group_src *ent;
size_t pkt_size, mld_hdr_size;
@@ -884,10 +897,10 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge *br,
pkt_size = sizeof(*eth) + sizeof(*ip6h) + 8 + mld_hdr_size;
if ((p && pkt_size > p->dev->mtu) ||
- pkt_size > br->dev->mtu)
+ pkt_size > brmctx->br->dev->mtu)
return NULL;
- skb = netdev_alloc_skb_ip_align(br->dev, pkt_size);
+ skb = netdev_alloc_skb_ip_align(brmctx->br->dev, pkt_size);
if (!skb)
goto out;
@@ -897,7 +910,7 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge *br,
skb_reset_mac_header(skb);
eth = eth_hdr(skb);
- ether_addr_copy(eth->h_source, br->dev->dev_addr);
+ ether_addr_copy(eth->h_source, brmctx->br->dev->dev_addr);
eth->h_proto = htons(ETH_P_IPV6);
skb_put(skb, sizeof(*eth));
@@ -910,14 +923,14 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge *br,
ip6h->nexthdr = IPPROTO_HOPOPTS;
ip6h->hop_limit = 1;
ip6h->daddr = *ip6_dst;
- if (ipv6_dev_get_saddr(dev_net(br->dev), br->dev, &ip6h->daddr,
0,
- &ip6h->saddr)) {
+ if (ipv6_dev_get_saddr(dev_net(brmctx->br->dev), brmctx->br->dev,
+ &ip6h->daddr, 0, &ip6h->saddr)) {
kfree_skb(skb);
- br_opt_toggle(br, BROPT_HAS_IPV6_ADDR, false);
+ br_opt_toggle(brmctx->br, BROPT_HAS_IPV6_ADDR, false);
return NULL;
}
- br_opt_toggle(br, BROPT_HAS_IPV6_ADDR, true);
+ br_opt_toggle(brmctx->br, BROPT_HAS_IPV6_ADDR, true);
ipv6_eth_mc_map(&ip6h->daddr, eth->h_dest);
hopopt = (u8 *)(ip6h + 1);
@@ -1002,7 +1015,7 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge *br,
}
#endif
-static struct sk_buff *br_multicast_alloc_query(struct net_bridge *br,
+static struct sk_buff *br_multicast_alloc_query(struct net_bridge_mcast
*brmctx,
struct net_bridge_port_group *pg,
struct br_ip *ip_dst,
struct br_ip *group,
@@ -1015,7 +1028,7 @@ static struct sk_buff *br_multicast_alloc_query(struct
net_bridge *br,
switch (group->proto) {
case htons(ETH_P_IP):
ip4_dst = ip_dst ? ip_dst->dst.ip4 : htonl(INADDR_ALLHOSTS_GROUP);
- return br_ip4_multicast_alloc_query(br, pg,
+ return br_ip4_multicast_alloc_query(brmctx, pg,
ip4_dst, group->dst.ip4,
with_srcs, over_lmqt,
sflag, igmp_type,
@@ -1030,7 +1043,7 @@ static struct sk_buff *br_multicast_alloc_query(struct
net_bridge *br,
ipv6_addr_set(&ip6_dst, htonl(0xff020000), 0, 0,
htonl(1));
- return br_ip6_multicast_alloc_query(br, pg,
+ return br_ip6_multicast_alloc_query(brmctx, pg,
&ip6_dst, &group->dst.ip6,
with_srcs, over_lmqt,
sflag, igmp_type,
@@ -1238,8 +1251,8 @@ void br_multicast_host_leave(struct net_bridge_mdb_entry
*mp, bool notify)
}
static struct net_bridge_port_group *
-__br_multicast_add_group(struct net_bridge *br,
- struct net_bridge_port *port,
+__br_multicast_add_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct br_ip *group,
const unsigned char *src,
u8 filter_mode,
@@ -1251,29 +1264,29 @@ __br_multicast_add_group(struct net_bridge *br,
struct net_bridge_mdb_entry *mp;
unsigned long now = jiffies;
- if (!netif_running(br->dev) ||
- (port && port->state == BR_STATE_DISABLED))
+ if (!netif_running(brmctx->br->dev) ||
+ (pmctx && pmctx->port->state == BR_STATE_DISABLED))
goto out;
- mp = br_multicast_new_group(br, group);
+ mp = br_multicast_new_group(brmctx->br, group);
if (IS_ERR(mp))
return ERR_CAST(mp);
- if (!port) {
+ if (!pmctx) {
br_multicast_host_join(mp, true);
goto out;
}
for (pp = &mp->ports;
- (p = mlock_dereference(*pp, br)) != NULL;
+ (p = mlock_dereference(*pp, brmctx->br)) != NULL;
pp = &p->next) {
- if (br_port_group_equal(p, port, src))
+ if (br_port_group_equal(p, pmctx->port, src))
goto found;
- if ((unsigned long)p->key.port < (unsigned long)port)
+ if ((unsigned long)p->key.port < (unsigned long)pmctx->port)
break;
}
- p = br_multicast_new_port_group(port, group, *pp, 0, src,
+ p = br_multicast_new_port_group(pmctx->port, group, *pp, 0, src,
filter_mode, RTPROT_KERNEL);
if (unlikely(!p)) {
p = ERR_PTR(-ENOMEM);
@@ -1282,19 +1295,19 @@ __br_multicast_add_group(struct net_bridge *br,
rcu_assign_pointer(*pp, p);
if (blocked)
p->flags |= MDB_PG_FLAGS_BLOCKED;
- br_mdb_notify(br->dev, mp, p, RTM_NEWMDB);
+ br_mdb_notify(brmctx->br->dev, mp, p, RTM_NEWMDB);
found:
if (igmpv2_mldv1)
mod_timer(&p->timer,
- now + br->multicast_ctx.multicast_membership_interval);
+ now + brmctx->multicast_membership_interval);
out:
return p;
}
-static int br_multicast_add_group(struct net_bridge *br,
- struct net_bridge_port *port,
+static int br_multicast_add_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct br_ip *group,
const unsigned char *src,
u8 filter_mode,
@@ -1303,18 +1316,18 @@ static int br_multicast_add_group(struct net_bridge *br,
struct net_bridge_port_group *pg;
int err;
- spin_lock(&br->multicast_lock);
- pg = __br_multicast_add_group(br, port, group, src, filter_mode,
+ spin_lock(&brmctx->br->multicast_lock);
+ pg = __br_multicast_add_group(brmctx, pmctx, group, src, filter_mode,
igmpv2_mldv1, false);
/* NULL is considered valid for host joined groups */
err = PTR_ERR_OR_ZERO(pg);
- spin_unlock(&br->multicast_lock);
+ spin_unlock(&brmctx->br->multicast_lock);
return err;
}
-static int br_ip4_multicast_add_group(struct net_bridge *br,
- struct net_bridge_port *port,
+static int br_ip4_multicast_add_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
__be32 group,
__u16 vid,
const unsigned char *src,
@@ -1332,13 +1345,13 @@ static int br_ip4_multicast_add_group(struct net_bridge
*br,
br_group.vid = vid;
filter_mode = igmpv2 ? MCAST_EXCLUDE : MCAST_INCLUDE;
- return br_multicast_add_group(br, port, &br_group, src, filter_mode,
- igmpv2);
+ return br_multicast_add_group(brmctx, pmctx, &br_group, src,
+ filter_mode, igmpv2);
}
#if IS_ENABLED(CONFIG_IPV6)
-static int br_ip6_multicast_add_group(struct net_bridge *br,
- struct net_bridge_port *port,
+static int br_ip6_multicast_add_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
const struct in6_addr *group,
__u16 vid,
const unsigned char *src,
@@ -1356,8 +1369,8 @@ static int br_ip6_multicast_add_group(struct net_bridge
*br,
br_group.vid = vid;
filter_mode = mldv1 ? MCAST_EXCLUDE : MCAST_INCLUDE;
- return br_multicast_add_group(br, port, &br_group, src, filter_mode,
- mldv1);
+ return br_multicast_add_group(brmctx, pmctx, &br_group, src,
+ filter_mode, mldv1);
}
#endif
@@ -1370,15 +1383,15 @@ static bool br_multicast_rport_del(struct hlist_node
*rlist)
return true;
}
-static bool br_ip4_multicast_rport_del(struct net_bridge_port *p)
+static bool br_ip4_multicast_rport_del(struct net_bridge_mcast_port *pmctx)
{
- return br_multicast_rport_del(&p->multicast_ctx.ip4_rlist);
+ return br_multicast_rport_del(&pmctx->ip4_rlist);
}
-static bool br_ip6_multicast_rport_del(struct net_bridge_port *p)
+static bool br_ip6_multicast_rport_del(struct net_bridge_mcast_port *pmctx)
{
#if IS_ENABLED(CONFIG_IPV6)
- return br_multicast_rport_del(&p->multicast_ctx.ip6_rlist);
+ return br_multicast_rport_del(&pmctx->ip6_rlist);
#else
return false;
#endif
@@ -1398,7 +1411,7 @@ static void br_multicast_router_expired(struct
net_bridge_mcast_port *pmctx,
goto out;
del = br_multicast_rport_del(rlist);
- br_multicast_rport_del_notify(pmctx->port, del);
+ br_multicast_rport_del_notify(pmctx, del);
out:
spin_unlock(&br->multicast_lock);
}
@@ -1475,7 +1488,7 @@ static void br_multicast_querier_expired(struct
net_bridge_mcast *brmctx,
!br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED))
goto out;
- br_multicast_start_querier(brmctx->br, query);
+ br_multicast_start_querier(brmctx, query);
out:
spin_unlock(&brmctx->br->multicast_lock);
@@ -1499,12 +1512,10 @@ static void br_ip6_multicast_querier_expired(struct
timer_list *t)
}
#endif
-static void br_multicast_select_own_querier(struct net_bridge *br,
+static void br_multicast_select_own_querier(struct net_bridge_mcast *brmctx,
struct br_ip *ip,
struct sk_buff *skb)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
-
if (ip->proto == htons(ETH_P_IP))
brmctx->ip4_querier.addr.src.ip4 = ip_hdr(skb)->saddr;
#if IS_ENABLED(CONFIG_IPV6)
@@ -1513,8 +1524,8 @@ static void br_multicast_select_own_querier(struct
net_bridge *br,
#endif
}
-static void __br_multicast_send_query(struct net_bridge *br,
- struct net_bridge_port *port,
+static void __br_multicast_send_query(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct net_bridge_port_group *pg,
struct br_ip *ip_dst,
struct br_ip *group,
@@ -1527,18 +1538,18 @@ static void __br_multicast_send_query(struct net_bridge
*br,
u8 igmp_type;
again_under_lmqt:
- skb = br_multicast_alloc_query(br, pg, ip_dst, group, with_srcs,
+ skb = br_multicast_alloc_query(brmctx, pg, ip_dst, group, with_srcs,
over_lmqt, sflag, &igmp_type,
need_rexmit);
if (!skb)
return;
- if (port) {
- skb->dev = port->dev;
- br_multicast_count(br, port, skb, igmp_type,
+ if (pmctx) {
+ skb->dev = pmctx->port->dev;
+ br_multicast_count(brmctx->br, pmctx->port, skb, igmp_type,
BR_MCAST_DIR_TX);
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT,
- dev_net(port->dev), NULL, skb, NULL, skb->dev,
+ dev_net(pmctx->port->dev), NULL, skb, NULL, skb->dev,
br_dev_queue_push_xmit);
if (over_lmqt && with_srcs && sflag) {
@@ -1546,31 +1557,30 @@ static void __br_multicast_send_query(struct net_bridge
*br,
goto again_under_lmqt;
}
} else {
- br_multicast_select_own_querier(br, group, skb);
- br_multicast_count(br, port, skb, igmp_type,
+ br_multicast_select_own_querier(brmctx, group, skb);
+ br_multicast_count(brmctx->br, NULL, skb, igmp_type,
BR_MCAST_DIR_RX);
netif_rx(skb);
}
}
-static void br_multicast_send_query(struct net_bridge *br,
- struct net_bridge_port *port,
+static void br_multicast_send_query(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct bridge_mcast_own_query *own_query)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct bridge_mcast_other_query *other_query = NULL;
struct br_ip br_group;
unsigned long time;
- if (!netif_running(br->dev) ||
- !br_opt_get(br, BROPT_MULTICAST_ENABLED) ||
- !br_opt_get(br, BROPT_MULTICAST_QUERIER))
+ if (!netif_running(brmctx->br->dev) ||
+ !br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED) ||
+ !br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER))
return;
memset(&br_group.dst, 0, sizeof(br_group.dst));
- if (port ? (own_query == &port->multicast_ctx.ip4_own_query) :
- (own_query == &brmctx->ip4_own_query)) {
+ if (pmctx ? (own_query == &pmctx->ip4_own_query) :
+ (own_query == &brmctx->ip4_own_query)) {
other_query = &brmctx->ip4_other_query;
br_group.proto = htons(ETH_P_IP);
#if IS_ENABLED(CONFIG_IPV6)
@@ -1583,8 +1593,8 @@ static void br_multicast_send_query(struct net_bridge *br,
if (!other_query || timer_pending(&other_query->timer))
return;
- __br_multicast_send_query(br, port, NULL, NULL, &br_group, false, 0,
- NULL);
+ __br_multicast_send_query(brmctx, pmctx, NULL, NULL, &br_group, false,
+ 0, NULL);
time = jiffies;
time += own_query->startup_sent <
brmctx->multicast_startup_query_count ?
@@ -1607,7 +1617,7 @@ br_multicast_port_query_expired(struct
net_bridge_mcast_port *pmctx,
if (query->startup_sent <
br->multicast_ctx.multicast_startup_query_count)
query->startup_sent++;
- br_multicast_send_query(pmctx->port->br, pmctx->port, query);
+ br_multicast_send_query(&br->multicast_ctx, pmctx, query);
out:
spin_unlock(&br->multicast_lock);
@@ -1636,7 +1646,8 @@ static void br_multicast_port_group_rexmit(struct
timer_list *t)
struct net_bridge_port_group *pg = from_timer(pg, t, rexmit_timer);
struct bridge_mcast_other_query *other_query = NULL;
struct net_bridge *br = pg->key.port->br;
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
+ struct net_bridge_mcast_port *pmctx;
+ struct net_bridge_mcast *brmctx;
bool need_rexmit = false;
spin_lock(&br->multicast_lock);
@@ -1645,6 +1656,8 @@ static void br_multicast_port_group_rexmit(struct
timer_list *t)
!br_opt_get(br, BROPT_MULTICAST_QUERIER))
goto out;
+ brmctx = &br->multicast_ctx;
+ pmctx = &pg->key.port->multicast_ctx;
if (pg->key.addr.proto == htons(ETH_P_IP))
other_query = &brmctx->ip4_other_query;
#if IS_ENABLED(CONFIG_IPV6)
@@ -1657,10 +1670,10 @@ static void br_multicast_port_group_rexmit(struct
timer_list *t)
if (pg->grp_query_rexmit_cnt) {
pg->grp_query_rexmit_cnt--;
- __br_multicast_send_query(br, pg->key.port, pg, &pg->key.addr,
+ __br_multicast_send_query(brmctx, pmctx, pg, &pg->key.addr,
&pg->key.addr, false, 1, NULL);
}
- __br_multicast_send_query(br, pg->key.port, pg, &pg->key.addr,
+ __br_multicast_send_query(brmctx, pmctx, pg, &pg->key.addr,
&pg->key.addr, true, 0, &need_rexmit);
if (pg->grp_query_rexmit_cnt || need_rexmit)
@@ -1756,20 +1769,21 @@ static void br_multicast_enable(struct
bridge_mcast_own_query *query)
mod_timer(&query->timer, jiffies);
}
-static void __br_multicast_enable_port(struct net_bridge_port *port)
+static void __br_multicast_enable_port_ctx(struct net_bridge_mcast_port *pmctx)
{
- struct net_bridge *br = port->br;
+ struct net_bridge *br = pmctx->port->br;
+ struct net_bridge_mcast *brmctx =
&pmctx->port->br->multicast_ctx;
if (!br_opt_get(br, BROPT_MULTICAST_ENABLED) || !netif_running(br->dev))
return;
- br_multicast_enable(&port->multicast_ctx.ip4_own_query);
+ br_multicast_enable(&pmctx->ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
- br_multicast_enable(&port->multicast_ctx.ip6_own_query);
+ br_multicast_enable(&pmctx->ip6_own_query);
#endif
- if (port->multicast_ctx.multicast_router == MDB_RTR_TYPE_PERM) {
- br_ip4_multicast_add_router(br, port);
- br_ip6_multicast_add_router(br, port);
+ if (pmctx->multicast_router == MDB_RTR_TYPE_PERM) {
+ br_ip4_multicast_add_router(brmctx, pmctx);
+ br_ip6_multicast_add_router(brmctx, pmctx);
}
}
@@ -1778,12 +1792,13 @@ void br_multicast_enable_port(struct net_bridge_port
*port)
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
- __br_multicast_enable_port(port);
+ __br_multicast_enable_port_ctx(&port->multicast_ctx);
spin_unlock(&br->multicast_lock);
}
void br_multicast_disable_port(struct net_bridge_port *port)
{
+ struct net_bridge_mcast_port *pmctx = &port->multicast_ctx;
struct net_bridge *br = port->br;
struct net_bridge_port_group *pg;
struct hlist_node *n;
@@ -1794,15 +1809,15 @@ void br_multicast_disable_port(struct net_bridge_port
*port)
if (!(pg->flags & MDB_PG_FLAGS_PERMANENT))
br_multicast_find_del_pg(br, pg);
- del |= br_ip4_multicast_rport_del(port);
- del_timer(&port->multicast_ctx.ip4_mc_router_timer);
- del_timer(&port->multicast_ctx.ip4_own_query.timer);
- del |= br_ip6_multicast_rport_del(port);
+ del |= br_ip4_multicast_rport_del(pmctx);
+ del_timer(&pmctx->ip4_mc_router_timer);
+ del_timer(&pmctx->ip4_own_query.timer);
+ del |= br_ip6_multicast_rport_del(pmctx);
#if IS_ENABLED(CONFIG_IPV6)
- del_timer(&port->multicast_ctx.ip6_mc_router_timer);
- del_timer(&port->multicast_ctx.ip6_own_query.timer);
+ del_timer(&pmctx->ip6_mc_router_timer);
+ del_timer(&pmctx->ip6_own_query.timer);
#endif
- br_multicast_rport_del_notify(port, del);
+ br_multicast_rport_del_notify(pmctx, del);
spin_unlock(&br->multicast_lock);
}
@@ -1828,17 +1843,17 @@ static void __grp_src_mod_timer(struct
net_bridge_group_src *src,
br_multicast_fwd_src_handle(src);
}
-static void __grp_src_query_marked_and_rexmit(struct net_bridge_port_group *pg)
+static void __grp_src_query_marked_and_rexmit(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg)
{
struct bridge_mcast_other_query *other_query = NULL;
- struct net_bridge *br = pg->key.port->br;
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
u32 lmqc = brmctx->multicast_last_member_count;
unsigned long lmqt, lmi, now = jiffies;
struct net_bridge_group_src *ent;
- if (!netif_running(br->dev) ||
- !br_opt_get(br, BROPT_MULTICAST_ENABLED))
+ if (!netif_running(brmctx->br->dev) ||
+ !br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED))
return;
if (pg->key.addr.proto == htons(ETH_P_IP))
@@ -1848,12 +1863,13 @@ static void __grp_src_query_marked_and_rexmit(struct
net_bridge_port_group *pg)
other_query = &brmctx->ip6_other_query;
#endif
- lmqt = now + br_multicast_lmqt(br);
+ lmqt = now + br_multicast_lmqt(brmctx);
hlist_for_each_entry(ent, &pg->src_list, node) {
if (ent->flags & BR_SGRP_F_SEND) {
ent->flags &= ~BR_SGRP_F_SEND;
if (ent->timer.expires > lmqt) {
- if (br_opt_get(br, BROPT_MULTICAST_QUERIER) &&
+ if (br_opt_get(brmctx->br,
+ BROPT_MULTICAST_QUERIER) &&
other_query &&
!timer_pending(&other_query->timer))
ent->src_query_rexmit_cnt = lmqc;
@@ -1862,11 +1878,11 @@ static void __grp_src_query_marked_and_rexmit(struct
net_bridge_port_group *pg)
}
}
- if (!br_opt_get(br, BROPT_MULTICAST_QUERIER) ||
+ if (!br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER) ||
!other_query || timer_pending(&other_query->timer))
return;
- __br_multicast_send_query(br, pg->key.port, pg, &pg->key.addr,
+ __br_multicast_send_query(brmctx, pmctx, pg, &pg->key.addr,
&pg->key.addr, true, 1, NULL);
lmi = now + brmctx->multicast_last_member_interval;
@@ -1875,15 +1891,15 @@ static void __grp_src_query_marked_and_rexmit(struct
net_bridge_port_group *pg)
mod_timer(&pg->rexmit_timer, lmi);
}
-static void __grp_send_query_and_rexmit(struct net_bridge_port_group *pg)
+static void __grp_send_query_and_rexmit(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg)
{
struct bridge_mcast_other_query *other_query = NULL;
- struct net_bridge *br = pg->key.port->br;
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
unsigned long now = jiffies, lmi;
- if (!netif_running(br->dev) ||
- !br_opt_get(br, BROPT_MULTICAST_ENABLED))
+ if (!netif_running(brmctx->br->dev) ||
+ !br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED))
return;
if (pg->key.addr.proto == htons(ETH_P_IP))
@@ -1893,11 +1909,11 @@ static void __grp_send_query_and_rexmit(struct
net_bridge_port_group *pg)
other_query = &brmctx->ip6_other_query;
#endif
- if (br_opt_get(br, BROPT_MULTICAST_QUERIER) &&
+ if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER) &&
other_query && !timer_pending(&other_query->timer)) {
lmi = now + brmctx->multicast_last_member_interval;
pg->grp_query_rexmit_cnt = brmctx->multicast_last_member_count - 1;
- __br_multicast_send_query(br, pg->key.port, pg, &pg->key.addr,
+ __br_multicast_send_query(brmctx, pmctx, pg, &pg->key.addr,
&pg->key.addr, false, 0, NULL);
if (!timer_pending(&pg->rexmit_timer) ||
time_after(pg->rexmit_timer.expires, lmi))
@@ -1906,8 +1922,8 @@ static void __grp_send_query_and_rexmit(struct
net_bridge_port_group *pg)
if (pg->filter_mode == MCAST_EXCLUDE &&
(!timer_pending(&pg->timer) ||
- time_after(pg->timer.expires, now + br_multicast_lmqt(br))))
- mod_timer(&pg->timer, now + br_multicast_lmqt(br));
+ time_after(pg->timer.expires, now + br_multicast_lmqt(brmctx))))
+ mod_timer(&pg->timer, now + br_multicast_lmqt(brmctx));
}
/* State Msg type New state Actions
@@ -1915,11 +1931,11 @@ static void __grp_send_query_and_rexmit(struct
net_bridge_port_group *pg)
* INCLUDE (A) ALLOW (B) INCLUDE (A+B) (B)=GMI
* EXCLUDE (X,Y) ALLOW (A) EXCLUDE (X+A,Y-A) (A)=GMI
*/
-static bool br_multicast_isinc_allow(struct net_bridge_port_group *pg, void
*h_addr,
+static bool br_multicast_isinc_allow(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
- struct net_bridge *br = pg->key.port->br;
struct net_bridge_group_src *ent;
unsigned long now = jiffies;
bool changed = false;
@@ -1938,10 +1954,11 @@ static bool br_multicast_isinc_allow(struct
net_bridge_port_group *pg, void *h_a
}
if (ent)
- __grp_src_mod_timer(ent, now + br_multicast_gmi(br));
+ __grp_src_mod_timer(ent, now + br_multicast_gmi(brmctx));
}
- if (br_multicast_eht_handle(pg, h_addr, srcs, nsrcs, addr_size, grec_type))
+ if (br_multicast_eht_handle(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
+ grec_type))
changed = true;
return changed;
@@ -1952,7 +1969,8 @@ static bool br_multicast_isinc_allow(struct
net_bridge_port_group *pg, void *h_a
* Delete (A-B)
* Group Timer=GMI
*/
-static void __grp_src_isexc_incl(struct net_bridge_port_group *pg, void
*h_addr,
+static void __grp_src_isexc_incl(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
@@ -1976,7 +1994,8 @@ static void __grp_src_isexc_incl(struct
net_bridge_port_group *pg, void *h_addr,
br_multicast_fwd_src_handle(ent);
}
- br_multicast_eht_handle(pg, h_addr, srcs, nsrcs, addr_size, grec_type);
+ br_multicast_eht_handle(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
+ grec_type);
__grp_src_delete_marked(pg);
}
@@ -1987,11 +2006,11 @@ static void __grp_src_isexc_incl(struct
net_bridge_port_group *pg, void *h_addr,
* Delete (Y-A)
* Group Timer=GMI
*/
-static bool __grp_src_isexc_excl(struct net_bridge_port_group *pg, void
*h_addr,
+static bool __grp_src_isexc_excl(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
- struct net_bridge *br = pg->key.port->br;
struct net_bridge_group_src *ent;
unsigned long now = jiffies;
bool changed = false;
@@ -2012,13 +2031,14 @@ static bool __grp_src_isexc_excl(struct
net_bridge_port_group *pg, void *h_addr,
ent = br_multicast_new_group_src(pg, &src_ip);
if (ent) {
__grp_src_mod_timer(ent,
- now + br_multicast_gmi(br));
+ now + br_multicast_gmi(brmctx));
changed = true;
}
}
}
- if (br_multicast_eht_handle(pg, h_addr, srcs, nsrcs, addr_size, grec_type))
+ if (br_multicast_eht_handle(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
+ grec_type))
changed = true;
if (__grp_src_delete_marked(pg))
@@ -2027,28 +2047,28 @@ static bool __grp_src_isexc_excl(struct
net_bridge_port_group *pg, void *h_addr,
return changed;
}
-static bool br_multicast_isexc(struct net_bridge_port_group *pg, void *h_addr,
+static bool br_multicast_isexc(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
- struct net_bridge *br = pg->key.port->br;
bool changed = false;
switch (pg->filter_mode) {
case MCAST_INCLUDE:
- __grp_src_isexc_incl(pg, h_addr, srcs, nsrcs, addr_size,
+ __grp_src_isexc_incl(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
grec_type);
br_multicast_star_g_handle_mode(pg, MCAST_EXCLUDE);
changed = true;
break;
case MCAST_EXCLUDE:
- changed = __grp_src_isexc_excl(pg, h_addr, srcs, nsrcs, addr_size,
- grec_type);
+ changed = __grp_src_isexc_excl(brmctx, pg, h_addr, srcs, nsrcs,
+ addr_size, grec_type);
break;
}
pg->filter_mode = MCAST_EXCLUDE;
- mod_timer(&pg->timer, jiffies + br_multicast_gmi(br));
+ mod_timer(&pg->timer, jiffies + br_multicast_gmi(brmctx));
return changed;
}
@@ -2057,11 +2077,12 @@ static bool br_multicast_isexc(struct
net_bridge_port_group *pg, void *h_addr,
* INCLUDE (A) TO_IN (B) INCLUDE (A+B) (B)=GMI
* Send Q(G,A-B)
*/
-static bool __grp_src_toin_incl(struct net_bridge_port_group *pg, void *h_addr,
+static bool __grp_src_toin_incl(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
- struct net_bridge *br = pg->key.port->br;
u32 src_idx, to_send = pg->src_ents;
struct net_bridge_group_src *ent;
unsigned long now = jiffies;
@@ -2085,14 +2106,15 @@ static bool __grp_src_toin_incl(struct
net_bridge_port_group *pg, void *h_addr,
changed = true;
}
if (ent)
- __grp_src_mod_timer(ent, now + br_multicast_gmi(br));
+ __grp_src_mod_timer(ent, now + br_multicast_gmi(brmctx));
}
- if (br_multicast_eht_handle(pg, h_addr, srcs, nsrcs, addr_size, grec_type))
+ if (br_multicast_eht_handle(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
+ grec_type))
changed = true;
if (to_send)
- __grp_src_query_marked_and_rexmit(pg);
+ __grp_src_query_marked_and_rexmit(brmctx, pmctx, pg);
return changed;
}
@@ -2102,11 +2124,12 @@ static bool __grp_src_toin_incl(struct
net_bridge_port_group *pg, void *h_addr,
* Send Q(G,X-A)
* Send Q(G)
*/
-static bool __grp_src_toin_excl(struct net_bridge_port_group *pg, void *h_addr,
+static bool __grp_src_toin_excl(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
- struct net_bridge *br = pg->key.port->br;
u32 src_idx, to_send = pg->src_ents;
struct net_bridge_group_src *ent;
unsigned long now = jiffies;
@@ -2133,21 +2156,24 @@ static bool __grp_src_toin_excl(struct
net_bridge_port_group *pg, void *h_addr,
changed = true;
}
if (ent)
- __grp_src_mod_timer(ent, now + br_multicast_gmi(br));
+ __grp_src_mod_timer(ent, now + br_multicast_gmi(brmctx));
}
- if (br_multicast_eht_handle(pg, h_addr, srcs, nsrcs, addr_size, grec_type))
+ if (br_multicast_eht_handle(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
+ grec_type))
changed = true;
if (to_send)
- __grp_src_query_marked_and_rexmit(pg);
+ __grp_src_query_marked_and_rexmit(brmctx, pmctx, pg);
- __grp_send_query_and_rexmit(pg);
+ __grp_send_query_and_rexmit(brmctx, pmctx, pg);
return changed;
}
-static bool br_multicast_toin(struct net_bridge_port_group *pg, void *h_addr,
+static bool br_multicast_toin(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
@@ -2155,12 +2181,12 @@ static bool br_multicast_toin(struct
net_bridge_port_group *pg, void *h_addr,
switch (pg->filter_mode) {
case MCAST_INCLUDE:
- changed = __grp_src_toin_incl(pg, h_addr, srcs, nsrcs, addr_size,
- grec_type);
+ changed = __grp_src_toin_incl(brmctx, pmctx, pg, h_addr, srcs,
+ nsrcs, addr_size, grec_type);
break;
case MCAST_EXCLUDE:
- changed = __grp_src_toin_excl(pg, h_addr, srcs, nsrcs, addr_size,
- grec_type);
+ changed = __grp_src_toin_excl(brmctx, pmctx, pg, h_addr, srcs,
+ nsrcs, addr_size, grec_type);
break;
}
@@ -2182,7 +2208,9 @@ static bool br_multicast_toin(struct net_bridge_port_group
*pg, void *h_addr,
* Send Q(G,A*B)
* Group Timer=GMI
*/
-static void __grp_src_toex_incl(struct net_bridge_port_group *pg, void *h_addr,
+static void __grp_src_toex_incl(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
@@ -2209,11 +2237,12 @@ static void __grp_src_toex_incl(struct
net_bridge_port_group *pg, void *h_addr,
br_multicast_fwd_src_handle(ent);
}
- br_multicast_eht_handle(pg, h_addr, srcs, nsrcs, addr_size, grec_type);
+ br_multicast_eht_handle(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
+ grec_type);
__grp_src_delete_marked(pg);
if (to_send)
- __grp_src_query_marked_and_rexmit(pg);
+ __grp_src_query_marked_and_rexmit(brmctx, pmctx, pg);
}
/* State Msg type New state Actions
@@ -2223,7 +2252,9 @@ static void __grp_src_toex_incl(struct
net_bridge_port_group *pg, void *h_addr,
* Send Q(G,A-Y)
* Group Timer=GMI
*/
-static bool __grp_src_toex_excl(struct net_bridge_port_group *pg, void *h_addr,
+static bool __grp_src_toex_excl(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
@@ -2255,39 +2286,41 @@ static bool __grp_src_toex_excl(struct
net_bridge_port_group *pg, void *h_addr,
}
}
- if (br_multicast_eht_handle(pg, h_addr, srcs, nsrcs, addr_size, grec_type))
+ if (br_multicast_eht_handle(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
+ grec_type))
changed = true;
if (__grp_src_delete_marked(pg))
changed = true;
if (to_send)
- __grp_src_query_marked_and_rexmit(pg);
+ __grp_src_query_marked_and_rexmit(brmctx, pmctx, pg);
return changed;
}
-static bool br_multicast_toex(struct net_bridge_port_group *pg, void *h_addr,
+static bool br_multicast_toex(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size,
int grec_type)
{
- struct net_bridge *br = pg->key.port->br;
bool changed = false;
switch (pg->filter_mode) {
case MCAST_INCLUDE:
- __grp_src_toex_incl(pg, h_addr, srcs, nsrcs, addr_size,
- grec_type);
+ __grp_src_toex_incl(brmctx, pmctx, pg, h_addr, srcs, nsrcs,
+ addr_size, grec_type);
br_multicast_star_g_handle_mode(pg, MCAST_EXCLUDE);
changed = true;
break;
case MCAST_EXCLUDE:
- changed = __grp_src_toex_excl(pg, h_addr, srcs, nsrcs, addr_size,
- grec_type);
+ changed = __grp_src_toex_excl(brmctx, pmctx, pg, h_addr, srcs,
+ nsrcs, addr_size, grec_type);
break;
}
pg->filter_mode = MCAST_EXCLUDE;
- mod_timer(&pg->timer, jiffies + br_multicast_gmi(br));
+ mod_timer(&pg->timer, jiffies + br_multicast_gmi(brmctx));
return changed;
}
@@ -2295,7 +2328,9 @@ static bool br_multicast_toex(struct net_bridge_port_group
*pg, void *h_addr,
/* State Msg type New state Actions
* INCLUDE (A) BLOCK (B) INCLUDE (A) Send Q(G,A*B)
*/
-static bool __grp_src_block_incl(struct net_bridge_port_group *pg, void
*h_addr,
+static bool __grp_src_block_incl(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size, int grec_type)
{
struct net_bridge_group_src *ent;
@@ -2317,11 +2352,12 @@ static bool __grp_src_block_incl(struct
net_bridge_port_group *pg, void *h_addr,
}
}
- if (br_multicast_eht_handle(pg, h_addr, srcs, nsrcs, addr_size, grec_type))
+ if (br_multicast_eht_handle(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
+ grec_type))
changed = true;
if (to_send)
- __grp_src_query_marked_and_rexmit(pg);
+ __grp_src_query_marked_and_rexmit(brmctx, pmctx, pg);
return changed;
}
@@ -2330,7 +2366,9 @@ static bool __grp_src_block_incl(struct
net_bridge_port_group *pg, void *h_addr,
* EXCLUDE (X,Y) BLOCK (A) EXCLUDE (X+(A-Y),Y) (A-X-Y)=Group Timer
* Send Q(G,A-Y)
*/
-static bool __grp_src_block_excl(struct net_bridge_port_group *pg, void
*h_addr,
+static bool __grp_src_block_excl(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size, int grec_type)
{
struct net_bridge_group_src *ent;
@@ -2359,28 +2397,31 @@ static bool __grp_src_block_excl(struct
net_bridge_port_group *pg, void *h_addr,
}
}
- if (br_multicast_eht_handle(pg, h_addr, srcs, nsrcs, addr_size, grec_type))
+ if (br_multicast_eht_handle(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
+ grec_type))
changed = true;
if (to_send)
- __grp_src_query_marked_and_rexmit(pg);
+ __grp_src_query_marked_and_rexmit(brmctx, pmctx, pg);
return changed;
}
-static bool br_multicast_block(struct net_bridge_port_group *pg, void *h_addr,
+static bool br_multicast_block(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct net_bridge_port_group *pg, void *h_addr,
void *srcs, u32 nsrcs, size_t addr_size, int grec_type)
{
bool changed = false;
switch (pg->filter_mode) {
case MCAST_INCLUDE:
- changed = __grp_src_block_incl(pg, h_addr, srcs, nsrcs, addr_size,
- grec_type);
+ changed = __grp_src_block_incl(brmctx, pmctx, pg, h_addr, srcs,
+ nsrcs, addr_size, grec_type);
break;
case MCAST_EXCLUDE:
- changed = __grp_src_block_excl(pg, h_addr, srcs, nsrcs, addr_size,
- grec_type);
+ changed = __grp_src_block_excl(brmctx, pmctx, pg, h_addr, srcs,
+ nsrcs, addr_size, grec_type);
break;
}
@@ -2415,12 +2456,12 @@ br_multicast_find_port(struct net_bridge_mdb_entry *mp,
return NULL;
}
-static int br_ip4_multicast_igmp3_report(struct net_bridge *br,
- struct net_bridge_port *port,
+static int br_ip4_multicast_igmp3_report(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb,
u16 vid)
{
- bool igmpv2 = br->multicast_ctx.multicast_igmp_version == 2;
+ bool igmpv2 = brmctx->multicast_igmp_version == 2;
struct net_bridge_mdb_entry *mdst;
struct net_bridge_port_group *pg;
const unsigned char *src;
@@ -2467,25 +2508,26 @@ static int br_ip4_multicast_igmp3_report(struct
net_bridge *br,
if (nsrcs == 0 &&
(type == IGMPV3_CHANGE_TO_INCLUDE ||
type == IGMPV3_MODE_IS_INCLUDE)) {
- if (!port || igmpv2) {
- br_ip4_multicast_leave_group(br, port, group, vid, src);
+ if (!pmctx || igmpv2) {
+ br_ip4_multicast_leave_group(brmctx, pmctx,
+ group, vid, src);
continue;
}
} else {
- err = br_ip4_multicast_add_group(br, port, group, vid,
- src, igmpv2);
+ err = br_ip4_multicast_add_group(brmctx, pmctx, group,
+ vid, src, igmpv2);
if (err)
break;
}
- if (!port || igmpv2)
+ if (!pmctx || igmpv2)
continue;
- spin_lock_bh(&br->multicast_lock);
- mdst = br_mdb_ip4_get(br, group, vid);
+ spin_lock_bh(&brmctx->br->multicast_lock);
+ mdst = br_mdb_ip4_get(brmctx->br, group, vid);
if (!mdst)
goto unlock_continue;
- pg = br_multicast_find_port(mdst, port, src);
+ pg = br_multicast_find_port(mdst, pmctx->port, src);
if (!pg || (pg->flags & MDB_PG_FLAGS_PERMANENT))
goto unlock_continue;
/* reload grec and host addr */
@@ -2493,46 +2535,52 @@ static int br_ip4_multicast_igmp3_report(struct
net_bridge *br,
h_addr = &ip_hdr(skb)->saddr;
switch (type) {
case IGMPV3_ALLOW_NEW_SOURCES:
- changed = br_multicast_isinc_allow(pg, h_addr, grec->grec_src,
+ changed = br_multicast_isinc_allow(brmctx, pg, h_addr,
+ grec->grec_src,
nsrcs, sizeof(__be32), type);
break;
case IGMPV3_MODE_IS_INCLUDE:
- changed = br_multicast_isinc_allow(pg, h_addr, grec->grec_src,
+ changed = br_multicast_isinc_allow(brmctx, pg, h_addr,
+ grec->grec_src,
nsrcs, sizeof(__be32), type);
break;
case IGMPV3_MODE_IS_EXCLUDE:
- changed = br_multicast_isexc(pg, h_addr, grec->grec_src,
+ changed = br_multicast_isexc(brmctx, pg, h_addr,
+ grec->grec_src,
nsrcs, sizeof(__be32), type);
break;
case IGMPV3_CHANGE_TO_INCLUDE:
- changed = br_multicast_toin(pg, h_addr, grec->grec_src,
+ changed = br_multicast_toin(brmctx, pmctx, pg, h_addr,
+ grec->grec_src,
nsrcs, sizeof(__be32), type);
break;
case IGMPV3_CHANGE_TO_EXCLUDE:
- changed = br_multicast_toex(pg, h_addr, grec->grec_src,
+ changed = br_multicast_toex(brmctx, pmctx, pg, h_addr,
+ grec->grec_src,
nsrcs, sizeof(__be32), type);
break;
case IGMPV3_BLOCK_OLD_SOURCES:
- changed = br_multicast_block(pg, h_addr, grec->grec_src,
+ changed = br_multicast_block(brmctx, pmctx, pg, h_addr,
+ grec->grec_src,
nsrcs, sizeof(__be32), type);
break;
}
if (changed)
- br_mdb_notify(br->dev, mdst, pg, RTM_NEWMDB);
+ br_mdb_notify(brmctx->br->dev, mdst, pg, RTM_NEWMDB);
unlock_continue:
- spin_unlock_bh(&br->multicast_lock);
+ spin_unlock_bh(&brmctx->br->multicast_lock);
}
return err;
}
#if IS_ENABLED(CONFIG_IPV6)
-static int br_ip6_multicast_mld2_report(struct net_bridge *br,
- struct net_bridge_port *port,
+static int br_ip6_multicast_mld2_report(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb,
u16 vid)
{
- bool mldv1 = br->multicast_ctx.multicast_mld_version == 1;
+ bool mldv1 = brmctx->multicast_mld_version == 1;
struct net_bridge_mdb_entry *mdst;
struct net_bridge_port_group *pg;
unsigned int nsrcs_offset;
@@ -2593,85 +2641,83 @@ static int br_ip6_multicast_mld2_report(struct
net_bridge *br,
if ((grec->grec_type == MLD2_CHANGE_TO_INCLUDE ||
grec->grec_type == MLD2_MODE_IS_INCLUDE) &&
nsrcs == 0) {
- if (!port || mldv1) {
- br_ip6_multicast_leave_group(br, port,
+ if (!pmctx || mldv1) {
+ br_ip6_multicast_leave_group(brmctx, pmctx,
&grec->grec_mca,
vid, src);
continue;
}
} else {
- err = br_ip6_multicast_add_group(br, port,
+ err = br_ip6_multicast_add_group(brmctx, pmctx,
&grec->grec_mca, vid,
src, mldv1);
if (err)
break;
}
- if (!port || mldv1)
+ if (!pmctx || mldv1)
continue;
- spin_lock_bh(&br->multicast_lock);
- mdst = br_mdb_ip6_get(br, &grec->grec_mca, vid);
+ spin_lock_bh(&brmctx->br->multicast_lock);
+ mdst = br_mdb_ip6_get(brmctx->br, &grec->grec_mca, vid);
if (!mdst)
goto unlock_continue;
- pg = br_multicast_find_port(mdst, port, src);
+ pg = br_multicast_find_port(mdst, pmctx->port, src);
if (!pg || (pg->flags & MDB_PG_FLAGS_PERMANENT))
goto unlock_continue;
h_addr = &ipv6_hdr(skb)->saddr;
switch (grec->grec_type) {
case MLD2_ALLOW_NEW_SOURCES:
- changed = br_multicast_isinc_allow(pg, h_addr,
+ changed = br_multicast_isinc_allow(brmctx, pg, h_addr,
grec->grec_src, nsrcs,
sizeof(struct in6_addr),
grec->grec_type);
break;
case MLD2_MODE_IS_INCLUDE:
- changed = br_multicast_isinc_allow(pg, h_addr,
+ changed = br_multicast_isinc_allow(brmctx, pg, h_addr,
grec->grec_src, nsrcs,
sizeof(struct in6_addr),
grec->grec_type);
break;
case MLD2_MODE_IS_EXCLUDE:
- changed = br_multicast_isexc(pg, h_addr,
+ changed = br_multicast_isexc(brmctx, pg, h_addr,
grec->grec_src, nsrcs,
sizeof(struct in6_addr),
grec->grec_type);
break;
case MLD2_CHANGE_TO_INCLUDE:
- changed = br_multicast_toin(pg, h_addr,
+ changed = br_multicast_toin(brmctx, pmctx, pg, h_addr,
grec->grec_src, nsrcs,
sizeof(struct in6_addr),
grec->grec_type);
break;
case MLD2_CHANGE_TO_EXCLUDE:
- changed = br_multicast_toex(pg, h_addr,
+ changed = br_multicast_toex(brmctx, pmctx, pg, h_addr,
grec->grec_src, nsrcs,
sizeof(struct in6_addr),
grec->grec_type);
break;
case MLD2_BLOCK_OLD_SOURCES:
- changed = br_multicast_block(pg, h_addr,
+ changed = br_multicast_block(brmctx, pmctx, pg, h_addr,
grec->grec_src, nsrcs,
sizeof(struct in6_addr),
grec->grec_type);
break;
}
if (changed)
- br_mdb_notify(br->dev, mdst, pg, RTM_NEWMDB);
+ br_mdb_notify(brmctx->br->dev, mdst, pg, RTM_NEWMDB);
unlock_continue:
- spin_unlock_bh(&br->multicast_lock);
+ spin_unlock_bh(&brmctx->br->multicast_lock);
}
return err;
}
#endif
-static bool br_ip4_multicast_select_querier(struct net_bridge *br,
+static bool br_ip4_multicast_select_querier(struct net_bridge_mcast *brmctx,
struct net_bridge_port *port,
__be32 saddr)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
-
if (!timer_pending(&brmctx->ip4_own_query.timer) &&
!timer_pending(&brmctx->ip4_other_query.timer))
goto update;
@@ -2694,12 +2740,10 @@ static bool br_ip4_multicast_select_querier(struct
net_bridge *br,
}
#if IS_ENABLED(CONFIG_IPV6)
-static bool br_ip6_multicast_select_querier(struct net_bridge *br,
+static bool br_ip6_multicast_select_querier(struct net_bridge_mcast *brmctx,
struct net_bridge_port *port,
struct in6_addr *saddr)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
-
if (!timer_pending(&brmctx->ip6_own_query.timer) &&
!timer_pending(&brmctx->ip6_other_query.timer))
goto update;
@@ -2720,15 +2764,14 @@ static bool br_ip6_multicast_select_querier(struct
net_bridge *br,
#endif
static void
-br_multicast_update_query_timer(struct net_bridge *br,
+br_multicast_update_query_timer(struct net_bridge_mcast *brmctx,
struct bridge_mcast_other_query *query,
unsigned long max_delay)
{
if (!timer_pending(&query->timer))
query->delay_time = jiffies + max_delay;
- mod_timer(&query->timer, jiffies +
- br->multicast_ctx.multicast_querier_interval);
+ mod_timer(&query->timer, jiffies +
brmctx->multicast_querier_interval);
}
static void br_port_mc_router_state_change(struct net_bridge_port *p,
@@ -2785,14 +2828,14 @@ br_multicast_get_rport_slot(struct net_bridge_mcast
*brmctx,
return slot;
}
-static bool br_multicast_no_router_otherpf(struct net_bridge_port *port,
+static bool br_multicast_no_router_otherpf(struct net_bridge_mcast_port *pmctx,
struct hlist_node *rnode)
{
#if IS_ENABLED(CONFIG_IPV6)
- if (rnode != &port->multicast_ctx.ip6_rlist)
- return hlist_unhashed(&port->multicast_ctx.ip6_rlist);
+ if (rnode != &pmctx->ip6_rlist)
+ return hlist_unhashed(&pmctx->ip6_rlist);
else
- return hlist_unhashed(&port->multicast_ctx.ip4_rlist);
+ return hlist_unhashed(&pmctx->ip4_rlist);
#else
return true;
#endif
@@ -2803,7 +2846,7 @@ static bool br_multicast_no_router_otherpf(struct
net_bridge_port *port,
* and locked by br->multicast_lock and RCU
*/
static void br_multicast_add_router(struct net_bridge_mcast *brmctx,
- struct net_bridge_port *port,
+ struct net_bridge_mcast_port *pmctx,
struct hlist_node *rlist,
struct hlist_head *mc_router_list)
{
@@ -2812,7 +2855,7 @@ static void br_multicast_add_router(struct
net_bridge_mcast *brmctx,
if (!hlist_unhashed(rlist))
return;
- slot = br_multicast_get_rport_slot(brmctx, port, mc_router_list);
+ slot = br_multicast_get_rport_slot(brmctx, pmctx->port, mc_router_list);
if (slot)
hlist_add_behind_rcu(rlist, slot);
@@ -2823,9 +2866,9 @@ static void br_multicast_add_router(struct
net_bridge_mcast *brmctx,
* switched from no IPv4/IPv6 multicast router to a new
* IPv4 or IPv6 multicast router.
*/
- if (br_multicast_no_router_otherpf(port, rlist)) {
- br_rtr_notify(port->br->dev, port, RTM_NEWMDB);
- br_port_mc_router_state_change(port, true);
+ if (br_multicast_no_router_otherpf(pmctx, rlist)) {
+ br_rtr_notify(pmctx->port->br->dev, pmctx->port, RTM_NEWMDB);
+ br_port_mc_router_state_change(pmctx->port, true);
}
}
@@ -2833,123 +2876,119 @@ static void br_multicast_add_router(struct
net_bridge_mcast *brmctx,
* list is maintained ordered by pointer value
* and locked by br->multicast_lock and RCU
*/
-static void br_ip4_multicast_add_router(struct net_bridge *br,
- struct net_bridge_port *port)
+static void br_ip4_multicast_add_router(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx)
{
- br_multicast_add_router(&br->multicast_ctx, port,
- &port->multicast_ctx.ip4_rlist,
- &br->multicast_ctx.ip4_mc_router_list);
+ br_multicast_add_router(brmctx, pmctx, &pmctx->ip4_rlist,
+ &brmctx->ip4_mc_router_list);
}
/* Add port to router_list
* list is maintained ordered by pointer value
* and locked by br->multicast_lock and RCU
*/
-static void br_ip6_multicast_add_router(struct net_bridge *br,
- struct net_bridge_port *port)
+static void br_ip6_multicast_add_router(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx)
{
#if IS_ENABLED(CONFIG_IPV6)
- br_multicast_add_router(&br->multicast_ctx, port,
- &port->multicast_ctx.ip6_rlist,
- &br->multicast_ctx.ip6_mc_router_list);
+ br_multicast_add_router(brmctx, pmctx, &pmctx->ip6_rlist,
+ &brmctx->ip6_mc_router_list);
#endif
}
-static void br_multicast_mark_router(struct net_bridge *br,
- struct net_bridge_port *port,
+static void br_multicast_mark_router(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct timer_list *timer,
struct hlist_node *rlist,
struct hlist_head *mc_router_list)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
unsigned long now = jiffies;
- if (!port) {
+ if (!pmctx) {
if (brmctx->multicast_router == MDB_RTR_TYPE_TEMP_QUERY) {
if (!br_ip4_multicast_is_router(brmctx) &&
!br_ip6_multicast_is_router(brmctx))
- br_mc_router_state_change(br, true);
+ br_mc_router_state_change(brmctx->br, true);
mod_timer(timer, now + brmctx->multicast_querier_interval);
}
return;
}
- if (port->multicast_ctx.multicast_router == MDB_RTR_TYPE_DISABLED ||
- port->multicast_ctx.multicast_router == MDB_RTR_TYPE_PERM)
+ if (pmctx->multicast_router == MDB_RTR_TYPE_DISABLED ||
+ pmctx->multicast_router == MDB_RTR_TYPE_PERM)
return;
- br_multicast_add_router(brmctx, port, rlist, mc_router_list);
+ br_multicast_add_router(brmctx, pmctx, rlist, mc_router_list);
mod_timer(timer, now + brmctx->multicast_querier_interval);
}
-static void br_ip4_multicast_mark_router(struct net_bridge *br,
- struct net_bridge_port *port)
+static void br_ip4_multicast_mark_router(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx)
{
- struct timer_list *timer = &br->multicast_ctx.ip4_mc_router_timer;
+ struct timer_list *timer = &brmctx->ip4_mc_router_timer;
struct hlist_node *rlist = NULL;
- if (port) {
- timer = &port->multicast_ctx.ip4_mc_router_timer;
- rlist = &port->multicast_ctx.ip4_rlist;
+ if (pmctx) {
+ timer = &pmctx->ip4_mc_router_timer;
+ rlist = &pmctx->ip4_rlist;
}
- br_multicast_mark_router(br, port, timer, rlist,
- &br->multicast_ctx.ip4_mc_router_list);
+ br_multicast_mark_router(brmctx, pmctx, timer, rlist,
+ &brmctx->ip4_mc_router_list);
}
-static void br_ip6_multicast_mark_router(struct net_bridge *br,
- struct net_bridge_port *port)
+static void br_ip6_multicast_mark_router(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx)
{
#if IS_ENABLED(CONFIG_IPV6)
- struct timer_list *timer = &br->multicast_ctx.ip6_mc_router_timer;
+ struct timer_list *timer = &brmctx->ip6_mc_router_timer;
struct hlist_node *rlist = NULL;
- if (port) {
- timer = &port->multicast_ctx.ip6_mc_router_timer;
- rlist = &port->multicast_ctx.ip6_rlist;
+ if (pmctx) {
+ timer = &pmctx->ip6_mc_router_timer;
+ rlist = &pmctx->ip6_rlist;
}
- br_multicast_mark_router(br, port, timer, rlist,
- &br->multicast_ctx.ip6_mc_router_list);
+ br_multicast_mark_router(brmctx, pmctx, timer, rlist,
+ &brmctx->ip6_mc_router_list);
#endif
}
static void
-br_ip4_multicast_query_received(struct net_bridge *br,
- struct net_bridge_port *port,
+br_ip4_multicast_query_received(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct bridge_mcast_other_query *query,
struct br_ip *saddr,
unsigned long max_delay)
{
- if (!br_ip4_multicast_select_querier(br, port, saddr->src.ip4))
+ if (!br_ip4_multicast_select_querier(brmctx, pmctx->port,
saddr->src.ip4))
return;
- br_multicast_update_query_timer(br, query, max_delay);
- br_ip4_multicast_mark_router(br, port);
+ br_multicast_update_query_timer(brmctx, query, max_delay);
+ br_ip4_multicast_mark_router(brmctx, pmctx);
}
#if IS_ENABLED(CONFIG_IPV6)
static void
-br_ip6_multicast_query_received(struct net_bridge *br,
- struct net_bridge_port *port,
+br_ip6_multicast_query_received(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct bridge_mcast_other_query *query,
struct br_ip *saddr,
unsigned long max_delay)
{
- if (!br_ip6_multicast_select_querier(br, port, &saddr->src.ip6))
+ if (!br_ip6_multicast_select_querier(brmctx, pmctx->port,
&saddr->src.ip6))
return;
- br_multicast_update_query_timer(br, query, max_delay);
- br_ip6_multicast_mark_router(br, port);
+ br_multicast_update_query_timer(brmctx, query, max_delay);
+ br_ip6_multicast_mark_router(brmctx, pmctx);
}
#endif
-static void br_ip4_multicast_query(struct net_bridge *br,
- struct net_bridge_port *port,
+static void br_ip4_multicast_query(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb,
u16 vid)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
unsigned int transport_len = ip_transport_len(skb);
const struct iphdr *iph = ip_hdr(skb);
struct igmphdr *ih = igmp_hdr(skb);
@@ -2962,9 +3001,9 @@ static void br_ip4_multicast_query(struct net_bridge *br,
unsigned long now = jiffies;
__be32 group;
- spin_lock(&br->multicast_lock);
- if (!netif_running(br->dev) ||
- (port && port->state == BR_STATE_DISABLED))
+ spin_lock(&brmctx->br->multicast_lock);
+ if (!netif_running(brmctx->br->dev) ||
+ (pmctx && pmctx->port->state == BR_STATE_DISABLED))
goto out;
group = ih->group;
@@ -2993,13 +3032,13 @@ static void br_ip4_multicast_query(struct net_bridge
*br,
saddr.proto = htons(ETH_P_IP);
saddr.src.ip4 = iph->saddr;
- br_ip4_multicast_query_received(br, port,
+ br_ip4_multicast_query_received(brmctx, pmctx,
&brmctx->ip4_other_query,
&saddr, max_delay);
goto out;
}
- mp = br_mdb_ip4_get(br, group, vid);
+ mp = br_mdb_ip4_get(brmctx->br, group, vid);
if (!mp)
goto out;
@@ -3012,7 +3051,7 @@ static void br_ip4_multicast_query(struct net_bridge *br,
mod_timer(&mp->timer, now + max_delay);
for (pp = &mp->ports;
- (p = mlock_dereference(*pp, br)) != NULL;
+ (p = mlock_dereference(*pp, brmctx->br)) != NULL;
pp = &p->next) {
if (timer_pending(&p->timer) ?
time_after(p->timer.expires, now + max_delay) :
@@ -3023,16 +3062,15 @@ static void br_ip4_multicast_query(struct net_bridge
*br,
}
out:
- spin_unlock(&br->multicast_lock);
+ spin_unlock(&brmctx->br->multicast_lock);
}
#if IS_ENABLED(CONFIG_IPV6)
-static int br_ip6_multicast_query(struct net_bridge *br,
- struct net_bridge_port *port,
+static int br_ip6_multicast_query(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb,
u16 vid)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
unsigned int transport_len = ipv6_transport_len(skb);
struct mld_msg *mld;
struct net_bridge_mdb_entry *mp;
@@ -3047,9 +3085,9 @@ static int br_ip6_multicast_query(struct net_bridge *br,
bool is_general_query;
int err = 0;
- spin_lock(&br->multicast_lock);
- if (!netif_running(br->dev) ||
- (port && port->state == BR_STATE_DISABLED))
+ spin_lock(&brmctx->br->multicast_lock);
+ if (!netif_running(brmctx->br->dev) ||
+ (pmctx && pmctx->port->state == BR_STATE_DISABLED))
goto out;
if (transport_len == sizeof(*mld)) {
@@ -3083,7 +3121,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
saddr.proto = htons(ETH_P_IPV6);
saddr.src.ip6 = ipv6_hdr(skb)->saddr;
- br_ip6_multicast_query_received(br, port,
+ br_ip6_multicast_query_received(brmctx, pmctx,
&brmctx->ip6_other_query,
&saddr, max_delay);
goto out;
@@ -3091,7 +3129,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
goto out;
}
- mp = br_mdb_ip6_get(br, group, vid);
+ mp = br_mdb_ip6_get(brmctx->br, group, vid);
if (!mp)
goto out;
@@ -3103,7 +3141,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
mod_timer(&mp->timer, now + max_delay);
for (pp = &mp->ports;
- (p = mlock_dereference(*pp, br)) != NULL;
+ (p = mlock_dereference(*pp, brmctx->br)) != NULL;
pp = &p->next) {
if (timer_pending(&p->timer) ?
time_after(p->timer.expires, now + max_delay) :
@@ -3114,41 +3152,40 @@ static int br_ip6_multicast_query(struct net_bridge *br,
}
out:
- spin_unlock(&br->multicast_lock);
+ spin_unlock(&brmctx->br->multicast_lock);
return err;
}
#endif
static void
-br_multicast_leave_group(struct net_bridge *br,
- struct net_bridge_port *port,
+br_multicast_leave_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct br_ip *group,
struct bridge_mcast_other_query *other_query,
struct bridge_mcast_own_query *own_query,
const unsigned char *src)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct net_bridge_mdb_entry *mp;
struct net_bridge_port_group *p;
unsigned long now;
unsigned long time;
- spin_lock(&br->multicast_lock);
- if (!netif_running(br->dev) ||
- (port && port->state == BR_STATE_DISABLED))
+ spin_lock(&brmctx->br->multicast_lock);
+ if (!netif_running(brmctx->br->dev) ||
+ (pmctx && pmctx->port->state == BR_STATE_DISABLED))
goto out;
- mp = br_mdb_ip_get(br, group);
+ mp = br_mdb_ip_get(brmctx->br, group);
if (!mp)
goto out;
- if (port && (port->flags & BR_MULTICAST_FAST_LEAVE)) {
+ if (pmctx && (pmctx->port->flags & BR_MULTICAST_FAST_LEAVE))
{
struct net_bridge_port_group __rcu **pp;
for (pp = &mp->ports;
- (p = mlock_dereference(*pp, br)) != NULL;
+ (p = mlock_dereference(*pp, brmctx->br)) != NULL;
pp = &p->next) {
- if (!br_port_group_equal(p, port, src))
+ if (!br_port_group_equal(p, pmctx->port, src))
continue;
if (p->flags & MDB_PG_FLAGS_PERMANENT)
@@ -3163,8 +3200,8 @@ br_multicast_leave_group(struct net_bridge *br,
if (timer_pending(&other_query->timer))
goto out;
- if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) {
- __br_multicast_send_query(br, port, NULL, NULL, &mp->addr,
+ if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER)) {
+ __br_multicast_send_query(brmctx, pmctx, NULL, NULL, &mp->addr,
false, 0, NULL);
time = jiffies + brmctx->multicast_last_member_count *
@@ -3172,10 +3209,10 @@ br_multicast_leave_group(struct net_bridge *br,
mod_timer(&own_query->timer, time);
- for (p = mlock_dereference(mp->ports, br);
+ for (p = mlock_dereference(mp->ports, brmctx->br);
p != NULL;
- p = mlock_dereference(p->next, br)) {
- if (!br_port_group_equal(p, port, src))
+ p = mlock_dereference(p->next, brmctx->br)) {
+ if (!br_port_group_equal(p, pmctx->port, src))
continue;
if (!hlist_unhashed(&p->mglist) &&
@@ -3193,7 +3230,7 @@ br_multicast_leave_group(struct net_bridge *br,
time = now + brmctx->multicast_last_member_count *
brmctx->multicast_last_member_interval;
- if (!port) {
+ if (!pmctx) {
if (mp->host_joined &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, time) :
@@ -3204,10 +3241,10 @@ br_multicast_leave_group(struct net_bridge *br,
goto out;
}
- for (p = mlock_dereference(mp->ports, br);
+ for (p = mlock_dereference(mp->ports, brmctx->br);
p != NULL;
- p = mlock_dereference(p->next, br)) {
- if (p->key.port != port)
+ p = mlock_dereference(p->next, brmctx->br)) {
+ if (p->key.port != pmctx->port)
continue;
if (!hlist_unhashed(&p->mglist) &&
@@ -3220,11 +3257,11 @@ br_multicast_leave_group(struct net_bridge *br,
break;
}
out:
- spin_unlock(&br->multicast_lock);
+ spin_unlock(&brmctx->br->multicast_lock);
}
-static void br_ip4_multicast_leave_group(struct net_bridge *br,
- struct net_bridge_port *port,
+static void br_ip4_multicast_leave_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
__be32 group,
__u16 vid,
const unsigned char *src)
@@ -3235,22 +3272,21 @@ static void br_ip4_multicast_leave_group(struct
net_bridge *br,
if (ipv4_is_local_multicast(group))
return;
- own_query = port ? &port->multicast_ctx.ip4_own_query :
- &br->multicast_ctx.ip4_own_query;
+ own_query = pmctx ? &pmctx->ip4_own_query :
&brmctx->ip4_own_query;
memset(&br_group, 0, sizeof(br_group));
br_group.dst.ip4 = group;
br_group.proto = htons(ETH_P_IP);
br_group.vid = vid;
- br_multicast_leave_group(br, port, &br_group,
- &br->multicast_ctx.ip4_other_query,
+ br_multicast_leave_group(brmctx, pmctx, &br_group,
+ &brmctx->ip4_other_query,
own_query, src);
}
#if IS_ENABLED(CONFIG_IPV6)
-static void br_ip6_multicast_leave_group(struct net_bridge *br,
- struct net_bridge_port *port,
+static void br_ip6_multicast_leave_group(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
const struct in6_addr *group,
__u16 vid,
const unsigned char *src)
@@ -3261,16 +3297,15 @@ static void br_ip6_multicast_leave_group(struct
net_bridge *br,
if (ipv6_addr_is_ll_all_nodes(group))
return;
- own_query = port ? &port->multicast_ctx.ip6_own_query :
- &br->multicast_ctx.ip6_own_query;
+ own_query = pmctx ? &pmctx->ip6_own_query :
&brmctx->ip6_own_query;
memset(&br_group, 0, sizeof(br_group));
br_group.dst.ip6 = *group;
br_group.proto = htons(ETH_P_IPV6);
br_group.vid = vid;
- br_multicast_leave_group(br, port, &br_group,
- &br->multicast_ctx.ip6_other_query,
+ br_multicast_leave_group(brmctx, pmctx, &br_group,
+ &brmctx->ip6_other_query,
own_query, src);
}
#endif
@@ -3308,8 +3343,8 @@ static void br_multicast_err_count(const struct net_bridge
*br,
u64_stats_update_end(&pstats->syncp);
}
-static void br_multicast_pim(struct net_bridge *br,
- struct net_bridge_port *port,
+static void br_multicast_pim(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
const struct sk_buff *skb)
{
unsigned int offset = skb_transport_offset(skb);
@@ -3320,31 +3355,32 @@ static void br_multicast_pim(struct net_bridge *br,
pim_hdr_type(pimhdr) != PIM_TYPE_HELLO)
return;
- spin_lock(&br->multicast_lock);
- br_ip4_multicast_mark_router(br, port);
- spin_unlock(&br->multicast_lock);
+ spin_lock(&brmctx->br->multicast_lock);
+ br_ip4_multicast_mark_router(brmctx, pmctx);
+ spin_unlock(&brmctx->br->multicast_lock);
}
-static int br_ip4_multicast_mrd_rcv(struct net_bridge *br,
- struct net_bridge_port *port,
+static int br_ip4_multicast_mrd_rcv(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb)
{
if (ip_hdr(skb)->protocol != IPPROTO_IGMP ||
igmp_hdr(skb)->type != IGMP_MRDISC_ADV)
return -ENOMSG;
- spin_lock(&br->multicast_lock);
- br_ip4_multicast_mark_router(br, port);
- spin_unlock(&br->multicast_lock);
+ spin_lock(&brmctx->br->multicast_lock);
+ br_ip4_multicast_mark_router(brmctx, pmctx);
+ spin_unlock(&brmctx->br->multicast_lock);
return 0;
}
-static int br_multicast_ipv4_rcv(struct net_bridge *br,
- struct net_bridge_port *port,
+static int br_multicast_ipv4_rcv(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb,
u16 vid)
{
+ struct net_bridge_port *p = pmctx ? pmctx->port : NULL;
const unsigned char *src;
struct igmphdr *ih;
int err;
@@ -3356,14 +3392,14 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
} else if (pim_ipv4_all_pim_routers(ip_hdr(skb)->daddr)) {
if (ip_hdr(skb)->protocol == IPPROTO_PIM)
- br_multicast_pim(br, port, skb);
+ br_multicast_pim(brmctx, pmctx, skb);
} else if (ipv4_is_all_snoopers(ip_hdr(skb)->daddr)) {
- br_ip4_multicast_mrd_rcv(br, port, skb);
+ br_ip4_multicast_mrd_rcv(brmctx, pmctx, skb);
}
return 0;
} else if (err < 0) {
- br_multicast_err_count(br, port, skb->protocol);
+ br_multicast_err_count(brmctx->br, p, skb->protocol);
return err;
}
@@ -3375,44 +3411,45 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
case IGMP_HOST_MEMBERSHIP_REPORT:
case IGMPV2_HOST_MEMBERSHIP_REPORT:
BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
- err = br_ip4_multicast_add_group(br, port, ih->group, vid, src,
- true);
+ err = br_ip4_multicast_add_group(brmctx, pmctx, ih->group, vid,
+ src, true);
break;
case IGMPV3_HOST_MEMBERSHIP_REPORT:
- err = br_ip4_multicast_igmp3_report(br, port, skb, vid);
+ err = br_ip4_multicast_igmp3_report(brmctx, pmctx, skb, vid);
break;
case IGMP_HOST_MEMBERSHIP_QUERY:
- br_ip4_multicast_query(br, port, skb, vid);
+ br_ip4_multicast_query(brmctx, pmctx, skb, vid);
break;
case IGMP_HOST_LEAVE_MESSAGE:
- br_ip4_multicast_leave_group(br, port, ih->group, vid, src);
+ br_ip4_multicast_leave_group(brmctx, pmctx, ih->group, vid, src);
break;
}
- br_multicast_count(br, port, skb, BR_INPUT_SKB_CB(skb)->igmp,
+ br_multicast_count(brmctx->br, p, skb, BR_INPUT_SKB_CB(skb)->igmp,
BR_MCAST_DIR_RX);
return err;
}
#if IS_ENABLED(CONFIG_IPV6)
-static void br_ip6_multicast_mrd_rcv(struct net_bridge *br,
- struct net_bridge_port *port,
+static void br_ip6_multicast_mrd_rcv(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb)
{
if (icmp6_hdr(skb)->icmp6_type != ICMPV6_MRDISC_ADV)
return;
- spin_lock(&br->multicast_lock);
- br_ip6_multicast_mark_router(br, port);
- spin_unlock(&br->multicast_lock);
+ spin_lock(&brmctx->br->multicast_lock);
+ br_ip6_multicast_mark_router(brmctx, pmctx);
+ spin_unlock(&brmctx->br->multicast_lock);
}
-static int br_multicast_ipv6_rcv(struct net_bridge *br,
- struct net_bridge_port *port,
+static int br_multicast_ipv6_rcv(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb,
u16 vid)
{
+ struct net_bridge_port *p = pmctx ? pmctx->port : NULL;
const unsigned char *src;
struct mld_msg *mld;
int err;
@@ -3424,11 +3461,11 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
if (err == -ENODATA &&
ipv6_addr_is_all_snoopers(&ipv6_hdr(skb)->daddr))
- br_ip6_multicast_mrd_rcv(br, port, skb);
+ br_ip6_multicast_mrd_rcv(brmctx, pmctx, skb);
return 0;
} else if (err < 0) {
- br_multicast_err_count(br, port, skb->protocol);
+ br_multicast_err_count(brmctx->br, p, skb->protocol);
return err;
}
@@ -3439,29 +3476,31 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
case ICMPV6_MGM_REPORT:
src = eth_hdr(skb)->h_source;
BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
- err = br_ip6_multicast_add_group(br, port, &mld->mld_mca, vid,
- src, true);
+ err = br_ip6_multicast_add_group(brmctx, pmctx, &mld->mld_mca,
+ vid, src, true);
break;
case ICMPV6_MLD2_REPORT:
- err = br_ip6_multicast_mld2_report(br, port, skb, vid);
+ err = br_ip6_multicast_mld2_report(brmctx, pmctx, skb, vid);
break;
case ICMPV6_MGM_QUERY:
- err = br_ip6_multicast_query(br, port, skb, vid);
+ err = br_ip6_multicast_query(brmctx, pmctx, skb, vid);
break;
case ICMPV6_MGM_REDUCTION:
src = eth_hdr(skb)->h_source;
- br_ip6_multicast_leave_group(br, port, &mld->mld_mca, vid, src);
+ br_ip6_multicast_leave_group(brmctx, pmctx, &mld->mld_mca, vid,
+ src);
break;
}
- br_multicast_count(br, port, skb, BR_INPUT_SKB_CB(skb)->igmp,
+ br_multicast_count(brmctx->br, p, skb, BR_INPUT_SKB_CB(skb)->igmp,
BR_MCAST_DIR_RX);
return err;
}
#endif
-int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
+int br_multicast_rcv(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb, u16 vid)
{
int ret = 0;
@@ -3469,16 +3508,16 @@ int br_multicast_rcv(struct net_bridge *br, struct
net_bridge_port *port,
BR_INPUT_SKB_CB(skb)->igmp = 0;
BR_INPUT_SKB_CB(skb)->mrouters_only = 0;
- if (!br_opt_get(br, BROPT_MULTICAST_ENABLED))
+ if (!br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED))
return 0;
switch (skb->protocol) {
case htons(ETH_P_IP):
- ret = br_multicast_ipv4_rcv(br, port, skb, vid);
+ ret = br_multicast_ipv4_rcv(brmctx, pmctx, skb, vid);
break;
#if IS_ENABLED(CONFIG_IPV6)
case htons(ETH_P_IPV6):
- ret = br_multicast_ipv6_rcv(br, port, skb, vid);
+ ret = br_multicast_ipv6_rcv(brmctx, pmctx, skb, vid);
break;
#endif
}
@@ -3486,17 +3525,17 @@ int br_multicast_rcv(struct net_bridge *br, struct
net_bridge_port *port,
return ret;
}
-static void br_multicast_query_expired(struct net_bridge *br,
+static void br_multicast_query_expired(struct net_bridge_mcast *brmctx,
struct bridge_mcast_own_query *query,
struct bridge_mcast_querier *querier)
{
- spin_lock(&br->multicast_lock);
- if (query->startup_sent <
br->multicast_ctx.multicast_startup_query_count)
+ spin_lock(&brmctx->br->multicast_lock);
+ if (query->startup_sent < brmctx->multicast_startup_query_count)
query->startup_sent++;
RCU_INIT_POINTER(querier->port, NULL);
- br_multicast_send_query(br, NULL, query);
- spin_unlock(&br->multicast_lock);
+ br_multicast_send_query(brmctx, NULL, query);
+ spin_unlock(&brmctx->br->multicast_lock);
}
static void br_ip4_multicast_query_expired(struct timer_list *t)
@@ -3504,7 +3543,7 @@ static void br_ip4_multicast_query_expired(struct
timer_list *t)
struct net_bridge_mcast *brmctx = from_timer(brmctx, t,
ip4_own_query.timer);
- br_multicast_query_expired(brmctx->br, &brmctx->ip4_own_query,
+ br_multicast_query_expired(brmctx, &brmctx->ip4_own_query,
&brmctx->ip4_querier);
}
@@ -3514,7 +3553,7 @@ static void br_ip6_multicast_query_expired(struct
timer_list *t)
struct net_bridge_mcast *brmctx = from_timer(brmctx, t,
ip6_own_query.timer);
- br_multicast_query_expired(brmctx->br, &brmctx->ip6_own_query,
+ br_multicast_query_expired(brmctx, &brmctx->ip6_own_query,
&brmctx->ip6_querier);
}
#endif
@@ -3722,7 +3761,7 @@ int br_multicast_set_router(struct net_bridge *br,
unsigned long val)
}
static void
-br_multicast_rport_del_notify(struct net_bridge_port *p, bool deleted)
+br_multicast_rport_del_notify(struct net_bridge_mcast_port *pmctx, bool
deleted)
{
if (!deleted)
return;
@@ -3730,36 +3769,37 @@ br_multicast_rport_del_notify(struct net_bridge_port *p,
bool deleted)
/* For backwards compatibility for now, only notify if there is
* no multicast router anymore for both IPv4 and IPv6.
*/
- if (!hlist_unhashed(&p->multicast_ctx.ip4_rlist))
+ if (!hlist_unhashed(&pmctx->ip4_rlist))
return;
#if IS_ENABLED(CONFIG_IPV6)
- if (!hlist_unhashed(&p->multicast_ctx.ip6_rlist))
+ if (!hlist_unhashed(&pmctx->ip6_rlist))
return;
#endif
- br_rtr_notify(p->br->dev, p, RTM_DELMDB);
- br_port_mc_router_state_change(p, false);
+ br_rtr_notify(pmctx->port->br->dev, pmctx->port, RTM_DELMDB);
+ br_port_mc_router_state_change(pmctx->port, false);
/* don't allow timer refresh */
- if (p->multicast_ctx.multicast_router == MDB_RTR_TYPE_TEMP)
- p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
+ if (pmctx->multicast_router == MDB_RTR_TYPE_TEMP)
+ pmctx->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
}
int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val)
{
struct net_bridge_mcast *brmctx = &p->br->multicast_ctx;
+ struct net_bridge_mcast_port *pmctx = &p->multicast_ctx;
unsigned long now = jiffies;
int err = -EINVAL;
bool del = false;
spin_lock(&p->br->multicast_lock);
- if (p->multicast_ctx.multicast_router == val) {
+ if (pmctx->multicast_router == val) {
/* Refresh the temp router port timer */
- if (p->multicast_ctx.multicast_router == MDB_RTR_TYPE_TEMP) {
- mod_timer(&p->multicast_ctx.ip4_mc_router_timer,
+ if (pmctx->multicast_router == MDB_RTR_TYPE_TEMP) {
+ mod_timer(&pmctx->ip4_mc_router_timer,
now + brmctx->multicast_querier_interval);
#if IS_ENABLED(CONFIG_IPV6)
- mod_timer(&p->multicast_ctx.ip6_mc_router_timer,
+ mod_timer(&pmctx->ip6_mc_router_timer,
now + brmctx->multicast_querier_interval);
#endif
}
@@ -3768,34 +3808,34 @@ int br_multicast_set_port_router(struct net_bridge_port
*p, unsigned long val)
}
switch (val) {
case MDB_RTR_TYPE_DISABLED:
- p->multicast_ctx.multicast_router = MDB_RTR_TYPE_DISABLED;
- del |= br_ip4_multicast_rport_del(p);
- del_timer(&p->multicast_ctx.ip4_mc_router_timer);
- del |= br_ip6_multicast_rport_del(p);
+ pmctx->multicast_router = MDB_RTR_TYPE_DISABLED;
+ del |= br_ip4_multicast_rport_del(pmctx);
+ del_timer(&pmctx->ip4_mc_router_timer);
+ del |= br_ip6_multicast_rport_del(pmctx);
#if IS_ENABLED(CONFIG_IPV6)
- del_timer(&p->multicast_ctx.ip6_mc_router_timer);
+ del_timer(&pmctx->ip6_mc_router_timer);
#endif
- br_multicast_rport_del_notify(p, del);
+ br_multicast_rport_del_notify(pmctx, del);
break;
case MDB_RTR_TYPE_TEMP_QUERY:
- p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
- del |= br_ip4_multicast_rport_del(p);
- del |= br_ip6_multicast_rport_del(p);
- br_multicast_rport_del_notify(p, del);
+ pmctx->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
+ del |= br_ip4_multicast_rport_del(pmctx);
+ del |= br_ip6_multicast_rport_del(pmctx);
+ br_multicast_rport_del_notify(pmctx, del);
break;
case MDB_RTR_TYPE_PERM:
- p->multicast_ctx.multicast_router = MDB_RTR_TYPE_PERM;
- del_timer(&p->multicast_ctx.ip4_mc_router_timer);
- br_ip4_multicast_add_router(p->br, p);
+ pmctx->multicast_router = MDB_RTR_TYPE_PERM;
+ del_timer(&pmctx->ip4_mc_router_timer);
+ br_ip4_multicast_add_router(brmctx, pmctx);
#if IS_ENABLED(CONFIG_IPV6)
- del_timer(&p->multicast_ctx.ip6_mc_router_timer);
+ del_timer(&pmctx->ip6_mc_router_timer);
#endif
- br_ip6_multicast_add_router(p->br, p);
+ br_ip6_multicast_add_router(brmctx, pmctx);
break;
case MDB_RTR_TYPE_TEMP:
- p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP;
- br_ip4_multicast_mark_router(p->br, p);
- br_ip6_multicast_mark_router(p->br, p);
+ pmctx->multicast_router = MDB_RTR_TYPE_TEMP;
+ br_ip4_multicast_mark_router(brmctx, pmctx);
+ br_ip6_multicast_mark_router(brmctx, pmctx);
break;
default:
goto unlock;
@@ -3807,20 +3847,20 @@ int br_multicast_set_port_router(struct net_bridge_port
*p, unsigned long val)
return err;
}
-static void br_multicast_start_querier(struct net_bridge *br,
+static void br_multicast_start_querier(struct net_bridge_mcast *brmctx,
struct bridge_mcast_own_query *query)
{
struct net_bridge_port *port;
- __br_multicast_open(br, query);
+ __br_multicast_open(brmctx->br, query);
rcu_read_lock();
- list_for_each_entry_rcu(port, &br->port_list, list) {
+ list_for_each_entry_rcu(port, &brmctx->br->port_list, list) {
if (port->state == BR_STATE_DISABLED ||
port->state == BR_STATE_BLOCKING)
continue;
- if (query == &br->multicast_ctx.ip4_own_query)
+ if (query == &brmctx->ip4_own_query)
br_multicast_enable(&port->multicast_ctx.ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
else
@@ -3858,7 +3898,7 @@ int br_multicast_toggle(struct net_bridge *br, unsigned
long val,
br_multicast_open(br);
list_for_each_entry(port, &br->port_list, list)
- __br_multicast_enable_port(port);
+ __br_multicast_enable_port_ctx(&port->multicast_ctx);
change_snoopers = true;
@@ -3901,7 +3941,7 @@ bool br_multicast_router(const struct net_device *dev)
bool is_router;
spin_lock_bh(&br->multicast_lock);
- is_router = br_multicast_is_router(br, NULL);
+ is_router = br_multicast_is_router(&br->multicast_ctx, NULL);
spin_unlock_bh(&br->multicast_lock);
return is_router;
}
@@ -3927,13 +3967,13 @@ int br_multicast_set_querier(struct net_bridge *br,
unsigned long val)
if (!timer_pending(&brmctx->ip4_other_query.timer))
brmctx->ip4_other_query.delay_time = jiffies + max_delay;
- br_multicast_start_querier(br, &brmctx->ip4_own_query);
+ br_multicast_start_querier(brmctx, &brmctx->ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
if (!timer_pending(&brmctx->ip6_other_query.timer))
brmctx->ip6_other_query.delay_time = jiffies + max_delay;
- br_multicast_start_querier(br, &brmctx->ip6_own_query);
+ br_multicast_start_querier(brmctx, &brmctx->ip6_own_query);
#endif
unlock:
@@ -4066,7 +4106,7 @@ bool br_multicast_has_querier_anywhere(struct net_device
*dev, int proto)
memset(ð, 0, sizeof(eth));
eth.h_proto = htons(proto);
- ret = br_multicast_querier_exists(br, ð, NULL);
+ ret = br_multicast_querier_exists(&br->multicast_ctx, ð, NULL);
unlock:
rcu_read_unlock();
@@ -4254,7 +4294,8 @@ static void br_mcast_stats_add(struct bridge_mcast_stats
__percpu *stats,
u64_stats_update_end(&pstats->syncp);
}
-void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p,
+void br_multicast_count(struct net_bridge *br,
+ const struct net_bridge_port *p,
const struct sk_buff *skb, u8 type, u8 dir)
{
struct bridge_mcast_stats __percpu *stats;
diff --git a/net/bridge/br_multicast_eht.c b/net/bridge/br_multicast_eht.c
index 13290a749d09..f91c071d1608 100644
--- a/net/bridge/br_multicast_eht.c
+++ b/net/bridge/br_multicast_eht.c
@@ -33,7 +33,8 @@
static bool br_multicast_del_eht_set_entry(struct net_bridge_port_group *pg,
union net_bridge_eht_addr *src_addr,
union net_bridge_eht_addr *h_addr);
-static void br_multicast_create_eht_set_entry(struct net_bridge_port_group *pg,
+static void br_multicast_create_eht_set_entry(const struct net_bridge_mcast
*brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *src_addr,
union net_bridge_eht_addr *h_addr,
int filter_mode,
@@ -388,7 +389,8 @@ static void br_multicast_ip_src_to_eht_addr(const struct
br_ip *src,
}
}
-static void br_eht_convert_host_filter_mode(struct net_bridge_port_group *pg,
+static void br_eht_convert_host_filter_mode(const struct net_bridge_mcast
*brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *h_addr,
int filter_mode)
{
@@ -405,14 +407,15 @@ static void br_eht_convert_host_filter_mode(struct
net_bridge_port_group *pg,
br_multicast_del_eht_set_entry(pg, &zero_addr, h_addr);
break;
case MCAST_EXCLUDE:
- br_multicast_create_eht_set_entry(pg, &zero_addr, h_addr,
- MCAST_EXCLUDE,
+ br_multicast_create_eht_set_entry(brmctx, pg, &zero_addr,
+ h_addr, MCAST_EXCLUDE,
true);
break;
}
}
-static void br_multicast_create_eht_set_entry(struct net_bridge_port_group *pg,
+static void br_multicast_create_eht_set_entry(const struct net_bridge_mcast
*brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *src_addr,
union net_bridge_eht_addr *h_addr,
int filter_mode,
@@ -441,8 +444,8 @@ static void br_multicast_create_eht_set_entry(struct
net_bridge_port_group *pg,
if (!set_h)
goto fail_set_entry;
- mod_timer(&set_h->timer, jiffies + br_multicast_gmi(br));
- mod_timer(&eht_set->timer, jiffies + br_multicast_gmi(br));
+ mod_timer(&set_h->timer, jiffies + br_multicast_gmi(brmctx));
+ mod_timer(&eht_set->timer, jiffies + br_multicast_gmi(brmctx));
return;
@@ -499,7 +502,8 @@ static void br_multicast_del_eht_host(struct
net_bridge_port_group *pg,
}
/* create new set entries from reports */
-static void __eht_create_set_entries(struct net_bridge_port_group *pg,
+static void __eht_create_set_entries(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *h_addr,
void *srcs,
u32 nsrcs,
@@ -512,8 +516,8 @@ static void __eht_create_set_entries(struct
net_bridge_port_group *pg,
memset(&eht_src_addr, 0, sizeof(eht_src_addr));
for (src_idx = 0; src_idx < nsrcs; src_idx++) {
memcpy(&eht_src_addr, srcs + (src_idx * addr_size), addr_size);
- br_multicast_create_eht_set_entry(pg, &eht_src_addr, h_addr,
- filter_mode,
+ br_multicast_create_eht_set_entry(brmctx, pg, &eht_src_addr,
+ h_addr, filter_mode,
false);
}
}
@@ -549,7 +553,8 @@ static bool __eht_del_set_entries(struct
net_bridge_port_group *pg,
return changed;
}
-static bool br_multicast_eht_allow(struct net_bridge_port_group *pg,
+static bool br_multicast_eht_allow(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *h_addr,
void *srcs,
u32 nsrcs,
@@ -559,8 +564,8 @@ static bool br_multicast_eht_allow(struct
net_bridge_port_group *pg,
switch (br_multicast_eht_host_filter_mode(pg, h_addr)) {
case MCAST_INCLUDE:
- __eht_create_set_entries(pg, h_addr, srcs, nsrcs, addr_size,
- MCAST_INCLUDE);
+ __eht_create_set_entries(brmctx, pg, h_addr, srcs, nsrcs,
+ addr_size, MCAST_INCLUDE);
break;
case MCAST_EXCLUDE:
changed = __eht_del_set_entries(pg, h_addr, srcs, nsrcs,
@@ -571,7 +576,8 @@ static bool br_multicast_eht_allow(struct
net_bridge_port_group *pg,
return changed;
}
-static bool br_multicast_eht_block(struct net_bridge_port_group *pg,
+static bool br_multicast_eht_block(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *h_addr,
void *srcs,
u32 nsrcs,
@@ -585,7 +591,7 @@ static bool br_multicast_eht_block(struct
net_bridge_port_group *pg,
addr_size);
break;
case MCAST_EXCLUDE:
- __eht_create_set_entries(pg, h_addr, srcs, nsrcs, addr_size,
+ __eht_create_set_entries(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
MCAST_EXCLUDE);
break;
}
@@ -594,7 +600,8 @@ static bool br_multicast_eht_block(struct
net_bridge_port_group *pg,
}
/* flush_entries is true when changing mode */
-static bool __eht_inc_exc(struct net_bridge_port_group *pg,
+static bool __eht_inc_exc(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *h_addr,
void *srcs,
u32 nsrcs,
@@ -612,11 +619,10 @@ static bool __eht_inc_exc(struct net_bridge_port_group
*pg,
/* if we're changing mode del host and its entries */
if (flush_entries)
br_multicast_del_eht_host(pg, h_addr);
- __eht_create_set_entries(pg, h_addr, srcs, nsrcs, addr_size,
+ __eht_create_set_entries(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
filter_mode);
/* we can be missing sets only if we've deleted some entries */
if (flush_entries) {
- struct net_bridge *br = pg->key.port->br;
struct net_bridge_group_eht_set *eht_set;
struct net_bridge_group_src *src_ent;
struct hlist_node *tmp;
@@ -647,14 +653,15 @@ static bool __eht_inc_exc(struct net_bridge_port_group
*pg,
&eht_src_addr);
if (!eht_set)
continue;
- mod_timer(&eht_set->timer, jiffies + br_multicast_lmqt(br));
+ mod_timer(&eht_set->timer, jiffies + br_multicast_lmqt(brmctx));
}
}
return changed;
}
-static bool br_multicast_eht_inc(struct net_bridge_port_group *pg,
+static bool br_multicast_eht_inc(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *h_addr,
void *srcs,
u32 nsrcs,
@@ -663,14 +670,15 @@ static bool br_multicast_eht_inc(struct
net_bridge_port_group *pg,
{
bool changed;
- changed = __eht_inc_exc(pg, h_addr, srcs, nsrcs, addr_size,
+ changed = __eht_inc_exc(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
MCAST_INCLUDE, to_report);
- br_eht_convert_host_filter_mode(pg, h_addr, MCAST_INCLUDE);
+ br_eht_convert_host_filter_mode(brmctx, pg, h_addr, MCAST_INCLUDE);
return changed;
}
-static bool br_multicast_eht_exc(struct net_bridge_port_group *pg,
+static bool br_multicast_eht_exc(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *h_addr,
void *srcs,
u32 nsrcs,
@@ -679,14 +687,15 @@ static bool br_multicast_eht_exc(struct
net_bridge_port_group *pg,
{
bool changed;
- changed = __eht_inc_exc(pg, h_addr, srcs, nsrcs, addr_size,
+ changed = __eht_inc_exc(brmctx, pg, h_addr, srcs, nsrcs, addr_size,
MCAST_EXCLUDE, to_report);
- br_eht_convert_host_filter_mode(pg, h_addr, MCAST_EXCLUDE);
+ br_eht_convert_host_filter_mode(brmctx, pg, h_addr, MCAST_EXCLUDE);
return changed;
}
-static bool __eht_ip4_handle(struct net_bridge_port_group *pg,
+static bool __eht_ip4_handle(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *h_addr,
void *srcs,
u32 nsrcs,
@@ -696,24 +705,25 @@ static bool __eht_ip4_handle(struct net_bridge_port_group
*pg,
switch (grec_type) {
case IGMPV3_ALLOW_NEW_SOURCES:
- br_multicast_eht_allow(pg, h_addr, srcs, nsrcs, sizeof(__be32));
+ br_multicast_eht_allow(brmctx, pg, h_addr, srcs, nsrcs,
+ sizeof(__be32));
break;
case IGMPV3_BLOCK_OLD_SOURCES:
- changed = br_multicast_eht_block(pg, h_addr, srcs, nsrcs,
+ changed = br_multicast_eht_block(brmctx, pg, h_addr, srcs, nsrcs,
sizeof(__be32));
break;
case IGMPV3_CHANGE_TO_INCLUDE:
to_report = true;
fallthrough;
case IGMPV3_MODE_IS_INCLUDE:
- changed = br_multicast_eht_inc(pg, h_addr, srcs, nsrcs,
+ changed = br_multicast_eht_inc(brmctx, pg, h_addr, srcs, nsrcs,
sizeof(__be32), to_report);
break;
case IGMPV3_CHANGE_TO_EXCLUDE:
to_report = true;
fallthrough;
case IGMPV3_MODE_IS_EXCLUDE:
- changed = br_multicast_eht_exc(pg, h_addr, srcs, nsrcs,
+ changed = br_multicast_eht_exc(brmctx, pg, h_addr, srcs, nsrcs,
sizeof(__be32), to_report);
break;
}
@@ -722,7 +732,8 @@ static bool __eht_ip4_handle(struct net_bridge_port_group
*pg,
}
#if IS_ENABLED(CONFIG_IPV6)
-static bool __eht_ip6_handle(struct net_bridge_port_group *pg,
+static bool __eht_ip6_handle(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
union net_bridge_eht_addr *h_addr,
void *srcs,
u32 nsrcs,
@@ -732,18 +743,18 @@ static bool __eht_ip6_handle(struct net_bridge_port_group
*pg,
switch (grec_type) {
case MLD2_ALLOW_NEW_SOURCES:
- br_multicast_eht_allow(pg, h_addr, srcs, nsrcs,
+ br_multicast_eht_allow(brmctx, pg, h_addr, srcs, nsrcs,
sizeof(struct in6_addr));
break;
case MLD2_BLOCK_OLD_SOURCES:
- changed = br_multicast_eht_block(pg, h_addr, srcs, nsrcs,
+ changed = br_multicast_eht_block(brmctx, pg, h_addr, srcs, nsrcs,
sizeof(struct in6_addr));
break;
case MLD2_CHANGE_TO_INCLUDE:
to_report = true;
fallthrough;
case MLD2_MODE_IS_INCLUDE:
- changed = br_multicast_eht_inc(pg, h_addr, srcs, nsrcs,
+ changed = br_multicast_eht_inc(brmctx, pg, h_addr, srcs, nsrcs,
sizeof(struct in6_addr),
to_report);
break;
@@ -751,7 +762,7 @@ static bool __eht_ip6_handle(struct net_bridge_port_group
*pg,
to_report = true;
fallthrough;
case MLD2_MODE_IS_EXCLUDE:
- changed = br_multicast_eht_exc(pg, h_addr, srcs, nsrcs,
+ changed = br_multicast_eht_exc(brmctx, pg, h_addr, srcs, nsrcs,
sizeof(struct in6_addr),
to_report);
break;
@@ -762,7 +773,8 @@ static bool __eht_ip6_handle(struct net_bridge_port_group
*pg,
#endif
/* true means an entry was deleted */
-bool br_multicast_eht_handle(struct net_bridge_port_group *pg,
+bool br_multicast_eht_handle(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
void *h_addr,
void *srcs,
u32 nsrcs,
@@ -779,12 +791,12 @@ bool br_multicast_eht_handle(struct net_bridge_port_group
*pg,
memset(&eht_host_addr, 0, sizeof(eht_host_addr));
memcpy(&eht_host_addr, h_addr, addr_size);
if (addr_size == sizeof(__be32))
- changed = __eht_ip4_handle(pg, &eht_host_addr, srcs, nsrcs,
- grec_type);
+ changed = __eht_ip4_handle(brmctx, pg, &eht_host_addr, srcs,
+ nsrcs, grec_type);
#if IS_ENABLED(CONFIG_IPV6)
else
- changed = __eht_ip6_handle(pg, &eht_host_addr, srcs, nsrcs,
- grec_type);
+ changed = __eht_ip6_handle(brmctx, pg, &eht_host_addr, srcs,
+ nsrcs, grec_type);
#endif
out:
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index badd490fce7a..89e942789b12 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -830,9 +830,10 @@ int br_ioctl_deviceless_stub(struct net *net, unsigned int
cmd,
/* br_multicast.c */
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
-int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
+int br_multicast_rcv(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb, u16 vid);
-struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
+struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx,
struct sk_buff *skb, u16 vid);
int br_multicast_add_port(struct net_bridge_port *port);
void br_multicast_del_port(struct net_bridge_port *port);
@@ -844,8 +845,9 @@ void br_multicast_leave_snoopers(struct net_bridge *br);
void br_multicast_open(struct net_bridge *br);
void br_multicast_stop(struct net_bridge *br);
void br_multicast_dev_del(struct net_bridge *br);
-void br_multicast_flood(struct net_bridge_mdb_entry *mdst,
- struct sk_buff *skb, bool local_rcv, bool local_orig);
+void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb,
+ struct net_bridge_mcast *brmctx,
+ bool local_rcv, bool local_orig);
int br_multicast_set_router(struct net_bridge *br, unsigned long val);
int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val);
int br_multicast_toggle(struct net_bridge *br, unsigned long val,
@@ -874,7 +876,8 @@ void br_rtr_notify(struct net_device *dev, struct
net_bridge_port *port,
void br_multicast_del_pg(struct net_bridge_mdb_entry *mp,
struct net_bridge_port_group *pg,
struct net_bridge_port_group __rcu **pp);
-void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p,
+void br_multicast_count(struct net_bridge *br,
+ const struct net_bridge_port *p,
const struct sk_buff *skb, u8 type, u8 dir);
int br_multicast_init_stats(struct net_bridge *br);
void br_multicast_uninit_stats(struct net_bridge *br);
@@ -903,10 +906,9 @@ static inline bool br_group_is_l2(const struct br_ip
*group)
rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
static inline struct hlist_node *
-br_multicast_get_first_rport_node(struct net_bridge *br, struct sk_buff *skb)
+br_multicast_get_first_rport_node(struct net_bridge_mcast *brmctx,
+ struct sk_buff *skb)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
-
#if IS_ENABLED(CONFIG_IPV6)
if (skb->protocol == htons(ETH_P_IPV6))
return rcu_dereference(hlist_first_rcu(&brmctx->ip6_mc_router_list));
@@ -949,10 +951,8 @@ static inline bool br_ip6_multicast_is_router(struct
net_bridge_mcast *brmctx)
}
static inline bool
-br_multicast_is_router(struct net_bridge *br, struct sk_buff *skb)
+br_multicast_is_router(struct net_bridge_mcast *brmctx, struct sk_buff *skb)
{
- struct net_bridge_mcast *brmctx = &br->multicast_ctx;
-
switch (brmctx->multicast_router) {
case MDB_RTR_TYPE_PERM:
return true;
@@ -973,14 +973,14 @@ br_multicast_is_router(struct net_bridge *br, struct
sk_buff *skb)
}
static inline bool
-__br_multicast_querier_exists(struct net_bridge *br,
- struct bridge_mcast_other_query *querier,
- const bool is_ipv6)
+__br_multicast_querier_exists(struct net_bridge_mcast *brmctx,
+ struct bridge_mcast_other_query *querier,
+ const bool is_ipv6)
{
bool own_querier_enabled;
- if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) {
- if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR))
+ if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER)) {
+ if (is_ipv6 && !br_opt_get(brmctx->br, BROPT_HAS_IPV6_ADDR))
own_querier_enabled = false;
else
own_querier_enabled = true;
@@ -992,18 +992,18 @@ __br_multicast_querier_exists(struct net_bridge *br,
(own_querier_enabled || timer_pending(&querier->timer));
}
-static inline bool br_multicast_querier_exists(struct net_bridge *br,
+static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx,
struct ethhdr *eth,
const struct net_bridge_mdb_entry *mdb)
{
switch (eth->h_proto) {
case (htons(ETH_P_IP)):
- return __br_multicast_querier_exists(br,
- &br->multicast_ctx.ip4_other_query, false);
+ return __br_multicast_querier_exists(brmctx,
+ &brmctx->ip4_other_query, false);
#if IS_ENABLED(CONFIG_IPV6)
case (htons(ETH_P_IPV6)):
- return __br_multicast_querier_exists(br,
- &br->multicast_ctx.ip6_other_query, true);
+ return __br_multicast_querier_exists(brmctx,
+ &brmctx->ip6_other_query, true);
#endif
default:
return !!mdb && br_group_is_l2(&mdb->addr);
@@ -1024,15 +1024,16 @@ static inline bool br_multicast_is_star_g(const struct
br_ip *ip)
}
}
-static inline bool br_multicast_should_handle_mode(const struct net_bridge *br,
- __be16 proto)
+static inline bool
+br_multicast_should_handle_mode(const struct net_bridge_mcast *brmctx,
+ __be16 proto)
{
switch (proto) {
case htons(ETH_P_IP):
- return !!(br->multicast_ctx.multicast_igmp_version == 3);
+ return !!(brmctx->multicast_igmp_version == 3);
#if IS_ENABLED(CONFIG_IPV6)
case htons(ETH_P_IPV6):
- return !!(br->multicast_ctx.multicast_mld_version == 2);
+ return !!(brmctx->multicast_mld_version == 2);
#endif
default:
return false;
@@ -1044,28 +1045,28 @@ static inline int br_multicast_igmp_type(const struct
sk_buff *skb)
return BR_INPUT_SKB_CB(skb)->igmp;
}
-static inline unsigned long br_multicast_lmqt(const struct net_bridge *br)
+static inline unsigned long br_multicast_lmqt(const struct net_bridge_mcast
*brmctx)
{
- return br->multicast_ctx.multicast_last_member_interval *
- br->multicast_ctx.multicast_last_member_count;
+ return brmctx->multicast_last_member_interval *
+ brmctx->multicast_last_member_count;
}
-static inline unsigned long br_multicast_gmi(const struct net_bridge *br)
+static inline unsigned long br_multicast_gmi(const struct net_bridge_mcast
*brmctx)
{
/* use the RFC default of 2 for QRV */
- return 2 * br->multicast_ctx.multicast_query_interval +
- br->multicast_ctx.multicast_query_response_interval;
+ return 2 * brmctx->multicast_query_interval +
+ brmctx->multicast_query_response_interval;
}
#else
-static inline int br_multicast_rcv(struct net_bridge *br,
- struct net_bridge_port *port,
+static inline int br_multicast_rcv(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct sk_buff *skb,
u16 vid)
{
return 0;
}
-static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
+static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast
*brmctx,
struct sk_buff *skb, u16 vid)
{
return NULL;
@@ -1114,17 +1115,18 @@ static inline void br_multicast_dev_del(struct
net_bridge *br)
static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst,
struct sk_buff *skb,
+ struct net_bridge_mcast *brmctx,
bool local_rcv, bool local_orig)
{
}
-static inline bool br_multicast_is_router(struct net_bridge *br,
+static inline bool br_multicast_is_router(struct net_bridge_mcast *brmctx,
struct sk_buff *skb)
{
return false;
}
-static inline bool br_multicast_querier_exists(struct net_bridge *br,
+static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx,
struct ethhdr *eth,
const struct net_bridge_mdb_entry *mdb)
{
diff --git a/net/bridge/br_private_mcast_eht.h
b/net/bridge/br_private_mcast_eht.h
index f89049f4892c..adf82a05515a 100644
--- a/net/bridge/br_private_mcast_eht.h
+++ b/net/bridge/br_private_mcast_eht.h
@@ -51,7 +51,8 @@ struct net_bridge_group_eht_set {
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
void br_multicast_eht_clean_sets(struct net_bridge_port_group *pg);
-bool br_multicast_eht_handle(struct net_bridge_port_group *pg,
+bool br_multicast_eht_handle(const struct net_bridge_mcast *brmctx,
+ struct net_bridge_port_group *pg,
void *h_addr,
void *srcs,
u32 nsrcs,
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 04/15] net: bridge: vlan: add global and per-port multicast context
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Add global and per-port vlan multicast context, only initialized but
still not used. No functional changes intended.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
net/bridge/br_multicast.c | 104 +++++++++++++++++++++++---------------
net/bridge/br_private.h | 38 ++++++++++++++
net/bridge/br_vlan.c | 4 ++
3 files changed, 106 insertions(+), 40 deletions(-)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 64145e48a0a5..6f803f789217 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -80,6 +80,7 @@ __br_multicast_add_group(struct net_bridge_mcast *brmctx,
bool blocked);
static void br_multicast_find_del_pg(struct net_bridge *br,
struct net_bridge_port_group *pg);
+static void __br_multicast_stop(struct net_bridge_mcast *brmctx);
static struct net_bridge_port_group *
br_sg_port_find(struct net_bridge *br,
@@ -1696,10 +1697,12 @@ static int br_mc_disabled_update(struct net_device *dev,
bool value,
return switchdev_port_attr_set(dev, &attr, extack);
}
-static void br_multicast_port_ctx_init(struct net_bridge_port *port,
- struct net_bridge_mcast_port *pmctx)
+void br_multicast_port_ctx_init(struct net_bridge_port *port,
+ struct net_bridge_vlan *vlan,
+ struct net_bridge_mcast_port *pmctx)
{
pmctx->port = port;
+ pmctx->vlan = vlan;
pmctx->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
timer_setup(&pmctx->ip4_mc_router_timer,
br_ip4_multicast_router_expired, 0);
@@ -1713,7 +1716,7 @@ static void br_multicast_port_ctx_init(struct
net_bridge_port *port,
#endif
}
-static void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx)
+void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx)
{
#if IS_ENABLED(CONFIG_IPV6)
del_timer_sync(&pmctx->ip6_mc_router_timer);
@@ -1726,7 +1729,7 @@ int br_multicast_add_port(struct net_bridge_port *port)
int err;
port->multicast_eht_hosts_limit = BR_MCAST_DEFAULT_EHT_HOSTS_LIMIT;
- br_multicast_port_ctx_init(port, &port->multicast_ctx);
+ br_multicast_port_ctx_init(port, NULL, &port->multicast_ctx);
err = br_mc_disabled_update(port->dev,
br_opt_get(port->br,
@@ -3571,48 +3574,63 @@ static void br_multicast_gc_work(struct work_struct
*work)
br_multicast_gc(&deleted_head);
}
-void br_multicast_init(struct net_bridge *br)
+void br_multicast_ctx_init(struct net_bridge *br,
+ struct net_bridge_vlan *vlan,
+ struct net_bridge_mcast *brmctx)
{
- br->hash_max = BR_MULTICAST_DEFAULT_HASH_MAX;
+ brmctx->br = br;
+ brmctx->vlan = vlan;
+ brmctx->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
+ brmctx->multicast_last_member_count = 2;
+ brmctx->multicast_startup_query_count = 2;
- br->multicast_ctx.br = br;
- br->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
- br->multicast_ctx.multicast_last_member_count = 2;
- br->multicast_ctx.multicast_startup_query_count = 2;
-
- br->multicast_ctx.multicast_last_member_interval = HZ;
- br->multicast_ctx.multicast_query_response_interval = 10 * HZ;
- br->multicast_ctx.multicast_startup_query_interval = 125 * HZ / 4;
- br->multicast_ctx.multicast_query_interval = 125 * HZ;
- br->multicast_ctx.multicast_querier_interval = 255 * HZ;
- br->multicast_ctx.multicast_membership_interval = 260 * HZ;
-
- br->multicast_ctx.ip4_other_query.delay_time = 0;
- br->multicast_ctx.ip4_querier.port = NULL;
- br->multicast_ctx.multicast_igmp_version = 2;
+ brmctx->multicast_last_member_interval = HZ;
+ brmctx->multicast_query_response_interval = 10 * HZ;
+ brmctx->multicast_startup_query_interval = 125 * HZ / 4;
+ brmctx->multicast_query_interval = 125 * HZ;
+ brmctx->multicast_querier_interval = 255 * HZ;
+ brmctx->multicast_membership_interval = 260 * HZ;
+
+ brmctx->ip4_other_query.delay_time = 0;
+ brmctx->ip4_querier.port = NULL;
+ brmctx->multicast_igmp_version = 2;
#if IS_ENABLED(CONFIG_IPV6)
- br->multicast_ctx.multicast_mld_version = 1;
- br->multicast_ctx.ip6_other_query.delay_time = 0;
- br->multicast_ctx.ip6_querier.port = NULL;
+ brmctx->multicast_mld_version = 1;
+ brmctx->ip6_other_query.delay_time = 0;
+ brmctx->ip6_querier.port = NULL;
#endif
- br_opt_toggle(br, BROPT_MULTICAST_ENABLED, true);
- br_opt_toggle(br, BROPT_HAS_IPV6_ADDR, true);
- spin_lock_init(&br->multicast_lock);
- timer_setup(&br->multicast_ctx.ip4_mc_router_timer,
+ timer_setup(&brmctx->ip4_mc_router_timer,
br_ip4_multicast_local_router_expired, 0);
- timer_setup(&br->multicast_ctx.ip4_other_query.timer,
+ timer_setup(&brmctx->ip4_other_query.timer,
br_ip4_multicast_querier_expired, 0);
- timer_setup(&br->multicast_ctx.ip4_own_query.timer,
+ timer_setup(&brmctx->ip4_own_query.timer,
br_ip4_multicast_query_expired, 0);
#if IS_ENABLED(CONFIG_IPV6)
- timer_setup(&br->multicast_ctx.ip6_mc_router_timer,
+ timer_setup(&brmctx->ip6_mc_router_timer,
br_ip6_multicast_local_router_expired, 0);
- timer_setup(&br->multicast_ctx.ip6_other_query.timer,
+ timer_setup(&brmctx->ip6_other_query.timer,
br_ip6_multicast_querier_expired, 0);
- timer_setup(&br->multicast_ctx.ip6_own_query.timer,
+ timer_setup(&brmctx->ip6_own_query.timer,
br_ip6_multicast_query_expired, 0);
#endif
+}
+
+void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx)
+{
+ __br_multicast_stop(brmctx);
+}
+
+void br_multicast_init(struct net_bridge *br)
+{
+ br->hash_max = BR_MULTICAST_DEFAULT_HASH_MAX;
+
+ br_multicast_ctx_init(br, NULL, &br->multicast_ctx);
+
+ br_opt_toggle(br, BROPT_MULTICAST_ENABLED, true);
+ br_opt_toggle(br, BROPT_HAS_IPV6_ADDR, true);
+
+ spin_lock_init(&br->multicast_lock);
INIT_HLIST_HEAD(&br->mdb_list);
INIT_HLIST_HEAD(&br->mcast_gc_list);
INIT_WORK(&br->mcast_gc_work, br_multicast_gc_work);
@@ -3699,18 +3717,23 @@ void br_multicast_open(struct net_bridge *br)
#endif
}
-void br_multicast_stop(struct net_bridge *br)
+static void __br_multicast_stop(struct net_bridge_mcast *brmctx)
{
- del_timer_sync(&br->multicast_ctx.ip4_mc_router_timer);
- del_timer_sync(&br->multicast_ctx.ip4_other_query.timer);
- del_timer_sync(&br->multicast_ctx.ip4_own_query.timer);
+ del_timer_sync(&brmctx->ip4_mc_router_timer);
+ del_timer_sync(&brmctx->ip4_other_query.timer);
+ del_timer_sync(&brmctx->ip4_own_query.timer);
#if IS_ENABLED(CONFIG_IPV6)
- del_timer_sync(&br->multicast_ctx.ip6_mc_router_timer);
- del_timer_sync(&br->multicast_ctx.ip6_other_query.timer);
- del_timer_sync(&br->multicast_ctx.ip6_own_query.timer);
+ del_timer_sync(&brmctx->ip6_mc_router_timer);
+ del_timer_sync(&brmctx->ip6_other_query.timer);
+ del_timer_sync(&brmctx->ip6_own_query.timer);
#endif
}
+void br_multicast_stop(struct net_bridge *br)
+{
+ __br_multicast_stop(&br->multicast_ctx);
+}
+
void br_multicast_dev_del(struct net_bridge *br)
{
struct net_bridge_mdb_entry *mp;
@@ -3723,6 +3746,7 @@ void br_multicast_dev_del(struct net_bridge *br)
hlist_move_list(&br->mcast_gc_list, &deleted_head);
spin_unlock_bh(&br->multicast_lock);
+ br_multicast_ctx_deinit(&br->multicast_ctx);
br_multicast_gc(&deleted_head);
cancel_work_sync(&br->mcast_gc_work);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 89e942789b12..7a0d077c2c39 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -93,6 +93,7 @@ struct bridge_mcast_stats {
struct net_bridge_mcast_port {
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
struct net_bridge_port *port;
+ struct net_bridge_vlan *vlan;
struct bridge_mcast_own_query ip4_own_query;
struct timer_list ip4_mc_router_timer;
@@ -110,6 +111,7 @@ struct net_bridge_mcast_port {
struct net_bridge_mcast {
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
struct net_bridge *br;
+ struct net_bridge_vlan *vlan;
u32 multicast_last_member_count;
u32 multicast_startup_query_count;
@@ -165,6 +167,9 @@ enum {
* @refcnt: if MASTER flag set, this is bumped for each port referencing it
* @brvlan: if MASTER flag unset, this points to the global per-VLAN context
* for this VLAN entry
+ * @br_mcast_ctx: if MASTER flag set, this is the global vlan multicast context
+ * @port_mcast_ctx: if MASTER flag unset, this is the per-port/vlan multicast
+ * context
* @vlist: sorted list of VLAN entries
* @rcu: used for entry destruction
*
@@ -192,6 +197,11 @@ struct net_bridge_vlan {
struct br_tunnel_info tinfo;
+ union {
+ struct net_bridge_mcast br_mcast_ctx;
+ struct net_bridge_mcast_port port_mcast_ctx;
+ };
+
struct list_head vlist;
struct rcu_head rcu;
@@ -896,6 +906,14 @@ struct net_bridge_group_src *
br_multicast_find_group_src(struct net_bridge_port_group *pg, struct br_ip
*ip);
void br_multicast_del_group_src(struct net_bridge_group_src *src,
bool fastleave);
+void br_multicast_ctx_init(struct net_bridge *br,
+ struct net_bridge_vlan *vlan,
+ struct net_bridge_mcast *brmctx);
+void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx);
+void br_multicast_port_ctx_init(struct net_bridge_port *port,
+ struct net_bridge_vlan *vlan,
+ struct net_bridge_mcast_port *pmctx);
+void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx);
static inline bool br_group_is_l2(const struct br_ip *group)
{
@@ -1170,6 +1188,26 @@ static inline int br_multicast_igmp_type(const struct
sk_buff *skb)
{
return 0;
}
+
+static inline void br_multicast_ctx_init(struct net_bridge *br,
+ struct net_bridge_vlan *vlan,
+ struct net_bridge_mcast *brmctx)
+{
+}
+
+static inline void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx)
+{
+}
+
+static inline void br_multicast_port_ctx_init(struct net_bridge_port *port,
+ struct net_bridge_vlan *vlan,
+ struct net_bridge_mcast_port *pmctx)
+{
+}
+
+static inline void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port
*pmctx)
+{
+}
#endif
/* br_vlan.c */
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index a08e9f193009..e7b7bb0a005b 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -190,6 +190,7 @@ static void br_vlan_put_master(struct net_bridge_vlan
*masterv)
rhashtable_remove_fast(&vg->vlan_hash,
&masterv->vnode, br_vlan_rht_params);
__vlan_del_list(masterv);
+ br_multicast_ctx_deinit(&masterv->br_mcast_ctx);
call_rcu(&masterv->rcu, br_master_vlan_rcu_free);
}
}
@@ -280,10 +281,12 @@ static int __vlan_add(struct net_bridge_vlan *v, u16
flags,
} else {
v->stats = masterv->stats;
}
+ br_multicast_port_ctx_init(p, v, &v->port_mcast_ctx);
} else {
err = br_switchdev_port_vlan_add(dev, v->vid, flags, extack);
if (err && err != -EOPNOTSUPP)
goto out;
+ br_multicast_ctx_init(br, v, &v->br_mcast_ctx);
}
/* Add the dev mac and count the vlan only if it's usable */
@@ -374,6 +377,7 @@ static int __vlan_del(struct net_bridge_vlan *v)
br_vlan_rht_params);
__vlan_del_list(v);
nbp_vlan_set_vlan_dev_state(p, v->vid);
+ br_multicast_port_ctx_deinit(&v->port_mcast_ctx);
call_rcu(&v->rcu, nbp_vlan_rcu_free);
}
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 05/15] net: bridge: multicast: add vlan state initialization and control
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Add helpers to enable/disable vlan multicast based on its flags, we need
two flags because we need to know if the vlan has multicast enabled
globally (user-controlled) and if it has it enabled on the specific device
(bridge or port). The new private vlan flags are:
- BR_VLFLAG_MCAST_ENABLED: locally enabled multicast on the device, used
when removing a vlan, toggling vlan mcast snooping and controlling
single vlan (kernel-controlled, valid under RTNL and multicast_lock)
- BR_VLFLAG_GLOBAL_MCAST_ENABLED: globally enabled multicast for the
vlan, used to control the bridge-wide vlan mcast snooping for a
single vlan (user-controlled, can be checked under any context)
Bridge vlan contexts are created with multicast snooping enabled by
default to be in line with the current bridge snooping defaults. In
order to actually activate per vlan snooping and context usage a
bridge-wide knob will be added later which will default to disabled.
If that knob is enabled then automatically all vlan snooping will be
enabled. All vlan contexts are initialized with the current bridge
multicast context defaults.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
net/bridge/br_multicast.c | 128 ++++++++++++++++++++++++++++++++------
net/bridge/br_private.h | 50 +++++++++++++++
net/bridge/br_vlan.c | 4 ++
3 files changed, 164 insertions(+), 18 deletions(-)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 6f803f789217..ef4e7de3f18d 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -214,7 +214,7 @@ static void __fwd_add_star_excl(struct net_bridge_mcast_port
*pmctx,
struct net_bridge_mcast *brmctx;
memset(&sg_key, 0, sizeof(sg_key));
- brmctx = &pg->key.port->br->multicast_ctx;
+ brmctx = br_multicast_port_ctx_get_global(pmctx);
sg_key.port = pg->key.port;
sg_key.addr = *sg_ip;
if (br_sg_port_find(brmctx->br, &sg_key))
@@ -275,6 +275,7 @@ void br_multicast_star_g_handle_mode(struct
net_bridge_port_group *pg,
memset(&sg_ip, 0, sizeof(sg_ip));
sg_ip = pg->key.addr;
+
for (pg_lst = mlock_dereference(mp->ports, br);
pg_lst;
pg_lst = mlock_dereference(pg_lst->next, br)) {
@@ -435,7 +436,7 @@ static void br_multicast_fwd_src_add(struct
net_bridge_group_src *src)
memset(&sg_ip, 0, sizeof(sg_ip));
pmctx = &src->pg->key.port->multicast_ctx;
- brmctx = &src->br->multicast_ctx;
+ brmctx = br_multicast_port_ctx_get_global(pmctx);
sg_ip = src->pg->key.addr;
sg_ip.src = src->addr.src;
@@ -1775,9 +1776,11 @@ static void br_multicast_enable(struct
bridge_mcast_own_query *query)
static void __br_multicast_enable_port_ctx(struct net_bridge_mcast_port *pmctx)
{
struct net_bridge *br = pmctx->port->br;
- struct net_bridge_mcast *brmctx =
&pmctx->port->br->multicast_ctx;
+ struct net_bridge_mcast *brmctx;
- if (!br_opt_get(br, BROPT_MULTICAST_ENABLED) || !netif_running(br->dev))
+ brmctx = br_multicast_port_ctx_get_global(pmctx);
+ if (!br_opt_get(br, BROPT_MULTICAST_ENABLED) ||
+ !netif_running(br->dev))
return;
br_multicast_enable(&pmctx->ip4_own_query);
@@ -1799,18 +1802,17 @@ void br_multicast_enable_port(struct net_bridge_port
*port)
spin_unlock(&br->multicast_lock);
}
-void br_multicast_disable_port(struct net_bridge_port *port)
+static void __br_multicast_disable_port_ctx(struct net_bridge_mcast_port
*pmctx)
{
- struct net_bridge_mcast_port *pmctx = &port->multicast_ctx;
- struct net_bridge *br = port->br;
struct net_bridge_port_group *pg;
struct hlist_node *n;
bool del = false;
- spin_lock(&br->multicast_lock);
- hlist_for_each_entry_safe(pg, n, &port->mglist, mglist)
- if (!(pg->flags & MDB_PG_FLAGS_PERMANENT))
- br_multicast_find_del_pg(br, pg);
+ hlist_for_each_entry_safe(pg, n, &pmctx->port->mglist, mglist)
+ if (!(pg->flags & MDB_PG_FLAGS_PERMANENT) &&
+ (!br_multicast_port_ctx_is_vlan(pmctx) ||
+ pg->key.addr.vid == pmctx->vlan->vid))
+ br_multicast_find_del_pg(pmctx->port->br, pg);
del |= br_ip4_multicast_rport_del(pmctx);
del_timer(&pmctx->ip4_mc_router_timer);
@@ -1821,7 +1823,13 @@ void br_multicast_disable_port(struct net_bridge_port
*port)
del_timer(&pmctx->ip6_own_query.timer);
#endif
br_multicast_rport_del_notify(pmctx, del);
- spin_unlock(&br->multicast_lock);
+}
+
+void br_multicast_disable_port(struct net_bridge_port *port)
+{
+ spin_lock(&port->br->multicast_lock);
+ __br_multicast_disable_port_ctx(&port->multicast_ctx);
+ spin_unlock(&port->br->multicast_lock);
}
static int __grp_src_delete_marked(struct net_bridge_port_group *pg)
@@ -3698,8 +3706,8 @@ void br_multicast_leave_snoopers(struct net_bridge *br)
br_ip6_multicast_leave_snoopers(br);
}
-static void __br_multicast_open(struct net_bridge *br,
- struct bridge_mcast_own_query *query)
+static void __br_multicast_open_query(struct net_bridge *br,
+ struct bridge_mcast_own_query *query)
{
query->startup_sent = 0;
@@ -3709,14 +3717,36 @@ static void __br_multicast_open(struct net_bridge *br,
mod_timer(&query->timer, jiffies);
}
-void br_multicast_open(struct net_bridge *br)
+static void __br_multicast_open(struct net_bridge_mcast *brmctx)
{
- __br_multicast_open(br, &br->multicast_ctx.ip4_own_query);
+ __br_multicast_open_query(brmctx->br, &brmctx->ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
- __br_multicast_open(br, &br->multicast_ctx.ip6_own_query);
+ __br_multicast_open_query(brmctx->br, &brmctx->ip6_own_query);
#endif
}
+void br_multicast_open(struct net_bridge *br)
+{
+ struct net_bridge_vlan_group *vg;
+ struct net_bridge_vlan *vlan;
+
+ ASSERT_RTNL();
+
+ vg = br_vlan_group(br);
+ if (vg) {
+ list_for_each_entry(vlan, &vg->vlan_list, vlist) {
+ struct net_bridge_mcast *brmctx;
+
+ brmctx = &vlan->br_mcast_ctx;
+ if (br_vlan_is_brentry(vlan) &&
+ !br_multicast_ctx_vlan_disabled(brmctx))
+ __br_multicast_open(&vlan->br_mcast_ctx);
+ }
+ }
+
+ __br_multicast_open(&br->multicast_ctx);
+}
+
static void __br_multicast_stop(struct net_bridge_mcast *brmctx)
{
del_timer_sync(&brmctx->ip4_mc_router_timer);
@@ -3729,8 +3759,70 @@ static void __br_multicast_stop(struct net_bridge_mcast
*brmctx)
#endif
}
+void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on)
+{
+ struct net_bridge *br;
+
+ /* it's okay to check for the flag without the multicast lock because it
+ * can only change under RTNL -> multicast_lock, we need the latter to
+ * sync with timers and packets
+ */
+ if (on == !!(vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED))
+ return;
+
+ if (br_vlan_is_master(vlan)) {
+ br = vlan->br;
+
+ if (!br_vlan_is_brentry(vlan) ||
+ (on &&
+ br_multicast_ctx_vlan_global_disabled(&vlan->br_mcast_ctx)))
+ return;
+
+ spin_lock_bh(&br->multicast_lock);
+ vlan->priv_flags ^= BR_VLFLAG_MCAST_ENABLED;
+ spin_unlock_bh(&br->multicast_lock);
+
+ if (on)
+ __br_multicast_open(&vlan->br_mcast_ctx);
+ else
+ __br_multicast_stop(&vlan->br_mcast_ctx);
+ } else {
+ struct net_bridge_mcast *brmctx;
+
+ brmctx = br_multicast_port_ctx_get_global(&vlan->port_mcast_ctx);
+ if (on && br_multicast_ctx_vlan_global_disabled(brmctx))
+ return;
+
+ br = vlan->port->br;
+ spin_lock_bh(&br->multicast_lock);
+ vlan->priv_flags ^= BR_VLFLAG_MCAST_ENABLED;
+ if (on)
+ __br_multicast_enable_port_ctx(&vlan->port_mcast_ctx);
+ else
+ __br_multicast_disable_port_ctx(&vlan->port_mcast_ctx);
+ spin_unlock_bh(&br->multicast_lock);
+ }
+}
+
void br_multicast_stop(struct net_bridge *br)
{
+ struct net_bridge_vlan_group *vg;
+ struct net_bridge_vlan *vlan;
+
+ ASSERT_RTNL();
+
+ vg = br_vlan_group(br);
+ if (vg) {
+ list_for_each_entry(vlan, &vg->vlan_list, vlist) {
+ struct net_bridge_mcast *brmctx;
+
+ brmctx = &vlan->br_mcast_ctx;
+ if (br_vlan_is_brentry(vlan) &&
+ !br_multicast_ctx_vlan_disabled(brmctx))
+ __br_multicast_stop(&vlan->br_mcast_ctx);
+ }
+ }
+
__br_multicast_stop(&br->multicast_ctx);
}
@@ -3876,7 +3968,7 @@ static void br_multicast_start_querier(struct
net_bridge_mcast *brmctx,
{
struct net_bridge_port *port;
- __br_multicast_open(brmctx->br, query);
+ __br_multicast_open_query(brmctx->br, query);
rcu_read_lock();
list_for_each_entry_rcu(port, &brmctx->br->port_list, list) {
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 7a0d077c2c39..a27c8b8f6efd 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -151,6 +151,8 @@ struct br_tunnel_info {
enum {
BR_VLFLAG_PER_PORT_STATS = BIT(0),
BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1),
+ BR_VLFLAG_MCAST_ENABLED = BIT(2),
+ BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3),
};
/**
@@ -914,6 +916,7 @@ void br_multicast_port_ctx_init(struct net_bridge_port
*port,
struct net_bridge_vlan *vlan,
struct net_bridge_mcast_port *pmctx);
void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx);
+void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on);
static inline bool br_group_is_l2(const struct br_ip *group)
{
@@ -1075,6 +1078,48 @@ static inline unsigned long br_multicast_gmi(const struct
net_bridge_mcast *brmc
return 2 * brmctx->multicast_query_interval +
brmctx->multicast_query_response_interval;
}
+
+static inline bool
+br_multicast_ctx_is_vlan(const struct net_bridge_mcast *brmctx)
+{
+ return !!brmctx->vlan;
+}
+
+static inline bool
+br_multicast_port_ctx_is_vlan(const struct net_bridge_mcast_port *pmctx)
+{
+ return !!pmctx->vlan;
+}
+
+static inline struct net_bridge_mcast *
+br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx)
+{
+ if (!br_multicast_port_ctx_is_vlan(pmctx))
+ return &pmctx->port->br->multicast_ctx;
+ else
+ return &pmctx->vlan->brvlan->br_mcast_ctx;
+}
+
+static inline bool
+br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx)
+{
+ return br_multicast_ctx_is_vlan(brmctx) &&
+ !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED);
+}
+
+static inline bool
+br_multicast_ctx_vlan_disabled(const struct net_bridge_mcast *brmctx)
+{
+ return br_multicast_ctx_is_vlan(brmctx) &&
+ !(brmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED);
+}
+
+static inline bool
+br_multicast_port_ctx_vlan_disabled(const struct net_bridge_mcast_port *pmctx)
+{
+ return br_multicast_port_ctx_is_vlan(pmctx) &&
+ !(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED);
+}
#else
static inline int br_multicast_rcv(struct net_bridge_mcast *brmctx,
struct net_bridge_mcast_port *pmctx,
@@ -1208,6 +1253,11 @@ static inline void br_multicast_port_ctx_init(struct
net_bridge_port *port,
static inline void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port
*pmctx)
{
}
+
+static inline void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan,
+ bool on)
+{
+}
#endif
/* br_vlan.c */
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index e7b7bb0a005b..1a8cb2b1b762 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -190,6 +190,7 @@ static void br_vlan_put_master(struct net_bridge_vlan
*masterv)
rhashtable_remove_fast(&vg->vlan_hash,
&masterv->vnode, br_vlan_rht_params);
__vlan_del_list(masterv);
+ br_multicast_toggle_one_vlan(masterv, false);
br_multicast_ctx_deinit(&masterv->br_mcast_ctx);
call_rcu(&masterv->rcu, br_master_vlan_rcu_free);
}
@@ -287,6 +288,7 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags,
if (err && err != -EOPNOTSUPP)
goto out;
br_multicast_ctx_init(br, v, &v->br_mcast_ctx);
+ v->priv_flags |= BR_VLFLAG_GLOBAL_MCAST_ENABLED;
}
/* Add the dev mac and count the vlan only if it's usable */
@@ -309,6 +311,7 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags,
__vlan_add_list(v);
__vlan_add_flags(v, flags);
+ br_multicast_toggle_one_vlan(v, true);
if (p)
nbp_vlan_set_vlan_dev_state(p, v->vid);
@@ -377,6 +380,7 @@ static int __vlan_del(struct net_bridge_vlan *v)
br_vlan_rht_params);
__vlan_del_list(v);
nbp_vlan_set_vlan_dev_state(p, v->vid);
+ br_multicast_toggle_one_vlan(v, false);
br_multicast_port_ctx_deinit(&v->port_mcast_ctx);
call_rcu(&v->rcu, nbp_vlan_rcu_free);
}
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 06/15] net: bridge: add vlan mcast snooping knob
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Add a global knob that controls if vlan multicast snooping is enabled.
The proper contexts (vlan or bridge-wide) will be chosen based on the knob
when processing packets and changing bridge device state. Note that
vlans have their individual mcast snooping enabled by default, but this
knob is needed to turn on bridge vlan snooping. It is disabled by
default. To enable the knob vlan filtering must also be enabled, it
doesn't make sense to have vlan mcast snooping without vlan filtering
since that would lead to inconsistencies. Disabling vlan filtering will
also automatically disable vlan mcast snooping.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
include/uapi/linux/if_bridge.h | 2 +
net/bridge/br.c | 9 ++-
net/bridge/br_device.c | 7 +-
net/bridge/br_input.c | 5 +-
net/bridge/br_multicast.c | 143 ++++++++++++++++++++++++++-------
net/bridge/br_private.h | 37 +++++++--
net/bridge/br_vlan.c | 20 +++--
7 files changed, 175 insertions(+), 48 deletions(-)
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index d8156d1526ae..57a63a1572e0 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -720,12 +720,14 @@ struct br_mcast_stats {
/* bridge boolean options
* BR_BOOLOPT_NO_LL_LEARN - disable learning from link-local packets
+ * BR_BOOLOPT_MCAST_VLAN_SNOOPING - control vlan multicast snooping
*
* IMPORTANT: if adding a new option do not forget to handle
* it in br_boolopt_toggle/get and bridge sysfs
*/
enum br_boolopt_id {
BR_BOOLOPT_NO_LL_LEARN,
+ BR_BOOLOPT_MCAST_VLAN_SNOOPING,
BR_BOOLOPT_MAX
};
diff --git a/net/bridge/br.c b/net/bridge/br.c
index ef743f94254d..51f2e25c4cd6 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -214,17 +214,22 @@ static struct notifier_block br_switchdev_notifier = {
int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on,
struct netlink_ext_ack *extack)
{
+ int err = 0;
+
switch (opt) {
case BR_BOOLOPT_NO_LL_LEARN:
br_opt_toggle(br, BROPT_NO_LL_LEARN, on);
break;
+ case BR_BOOLOPT_MCAST_VLAN_SNOOPING:
+ err = br_multicast_toggle_vlan_snooping(br, on, extack);
+ break;
default:
/* shouldn't be called with unsupported options */
WARN_ON(1);
break;
}
- return 0;
+ return err;
}
int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt)
@@ -232,6 +237,8 @@ int br_boolopt_get(const struct net_bridge *br, enum
br_boolopt_id opt)
switch (opt) {
case BR_BOOLOPT_NO_LL_LEARN:
return br_opt_get(br, BROPT_NO_LL_LEARN);
+ case BR_BOOLOPT_MCAST_VLAN_SNOOPING:
+ return br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED);
default:
/* shouldn't be called with unsupported options */
WARN_ON(1);
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index e815bf4f9f24..00daf35f54d5 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -27,12 +27,14 @@ EXPORT_SYMBOL_GPL(nf_br_ops);
/* net device transmit always called with BH disabled */
netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
{
+ struct net_bridge_mcast_port *pmctx_null = NULL;
struct net_bridge *br = netdev_priv(dev);
struct net_bridge_mcast *brmctx = &br->multicast_ctx;
struct net_bridge_fdb_entry *dst;
struct net_bridge_mdb_entry *mdst;
const struct nf_br_ops *nf_ops;
u8 state = BR_STATE_FORWARDING;
+ struct net_bridge_vlan *vlan;
const unsigned char *dest;
u16 vid = 0;
@@ -54,7 +56,8 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device
*dev)
skb_reset_mac_header(skb);
skb_pull(skb, ETH_HLEN);
- if (!br_allowed_ingress(br, br_vlan_group_rcu(br), skb, &vid, &state))
+ if (!br_allowed_ingress(br, br_vlan_group_rcu(br), skb, &vid,
+ &state, &vlan))
goto out;
if (IS_ENABLED(CONFIG_INET) &&
@@ -83,7 +86,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device
*dev)
br_flood(br, skb, BR_PKT_MULTICAST, false, true);
goto out;
}
- if (br_multicast_rcv(brmctx, NULL, skb, vid)) {
+ if (br_multicast_rcv(&brmctx, &pmctx_null, vlan, skb, vid)) {
kfree_skb(skb);
goto out;
}
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index bb2036dd4934..8a0c0cc55cb4 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -73,6 +73,7 @@ int br_handle_frame_finish(struct net *net, struct sock *sk,
struct sk_buff *skb
struct net_bridge_mdb_entry *mdst;
bool local_rcv, mcast_hit = false;
struct net_bridge_mcast *brmctx;
+ struct net_bridge_vlan *vlan;
struct net_bridge *br;
u16 vid = 0;
u8 state;
@@ -84,7 +85,7 @@ int br_handle_frame_finish(struct net *net, struct sock *sk,
struct sk_buff *skb
pmctx = &p->multicast_ctx;
state = p->state;
if (!br_allowed_ingress(p->br, nbp_vlan_group_rcu(p), skb, &vid,
- &state))
+ &state, &vlan))
goto out;
nbp_switchdev_frame_mark(p, skb);
@@ -102,7 +103,7 @@ int br_handle_frame_finish(struct net *net, struct sock *sk,
struct sk_buff *skb
local_rcv = true;
} else {
pkt_type = BR_PKT_MULTICAST;
- if (br_multicast_rcv(brmctx, pmctx, skb, vid))
+ if (br_multicast_rcv(&brmctx, &pmctx, vlan, skb, vid))
goto drop;
}
}
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index ef4e7de3f18d..b71772828b23 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1797,9 +1797,9 @@ void br_multicast_enable_port(struct net_bridge_port
*port)
{
struct net_bridge *br = port->br;
- spin_lock(&br->multicast_lock);
+ spin_lock_bh(&br->multicast_lock);
__br_multicast_enable_port_ctx(&port->multicast_ctx);
- spin_unlock(&br->multicast_lock);
+ spin_unlock_bh(&br->multicast_lock);
}
static void __br_multicast_disable_port_ctx(struct net_bridge_mcast_port
*pmctx)
@@ -1827,9 +1827,9 @@ static void __br_multicast_disable_port_ctx(struct
net_bridge_mcast_port *pmctx)
void br_multicast_disable_port(struct net_bridge_port *port)
{
- spin_lock(&port->br->multicast_lock);
+ spin_lock_bh(&port->br->multicast_lock);
__br_multicast_disable_port_ctx(&port->multicast_ctx);
- spin_unlock(&port->br->multicast_lock);
+ spin_unlock_bh(&port->br->multicast_lock);
}
static int __grp_src_delete_marked(struct net_bridge_port_group *pg)
@@ -3510,8 +3510,9 @@ static int br_multicast_ipv6_rcv(struct net_bridge_mcast
*brmctx,
}
#endif
-int br_multicast_rcv(struct net_bridge_mcast *brmctx,
- struct net_bridge_mcast_port *pmctx,
+int br_multicast_rcv(struct net_bridge_mcast **brmctx,
+ struct net_bridge_mcast_port **pmctx,
+ struct net_bridge_vlan *vlan,
struct sk_buff *skb, u16 vid)
{
int ret = 0;
@@ -3519,16 +3520,36 @@ int br_multicast_rcv(struct net_bridge_mcast *brmctx,
BR_INPUT_SKB_CB(skb)->igmp = 0;
BR_INPUT_SKB_CB(skb)->mrouters_only = 0;
- if (!br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED))
+ if (!br_opt_get((*brmctx)->br, BROPT_MULTICAST_ENABLED))
return 0;
+ if (br_opt_get((*brmctx)->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) &&
vlan) {
+ const struct net_bridge_vlan *masterv;
+
+ /* the vlan has the master flag set only when transmitting
+ * through the bridge device
+ */
+ if (br_vlan_is_master(vlan)) {
+ masterv = vlan;
+ *brmctx = &vlan->br_mcast_ctx;
+ *pmctx = NULL;
+ } else {
+ masterv = vlan->brvlan;
+ *brmctx = &vlan->brvlan->br_mcast_ctx;
+ *pmctx = &vlan->port_mcast_ctx;
+ }
+
+ if (!(masterv->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED))
+ return 0;
+ }
+
switch (skb->protocol) {
case htons(ETH_P_IP):
- ret = br_multicast_ipv4_rcv(brmctx, pmctx, skb, vid);
+ ret = br_multicast_ipv4_rcv(*brmctx, *pmctx, skb, vid);
break;
#if IS_ENABLED(CONFIG_IPV6)
case htons(ETH_P_IPV6):
- ret = br_multicast_ipv6_rcv(brmctx, pmctx, skb, vid);
+ ret = br_multicast_ipv6_rcv(*brmctx, *pmctx, skb, vid);
break;
#endif
}
@@ -3727,20 +3748,22 @@ static void __br_multicast_open(struct net_bridge_mcast
*brmctx)
void br_multicast_open(struct net_bridge *br)
{
- struct net_bridge_vlan_group *vg;
- struct net_bridge_vlan *vlan;
-
ASSERT_RTNL();
- vg = br_vlan_group(br);
- if (vg) {
- list_for_each_entry(vlan, &vg->vlan_list, vlist) {
- struct net_bridge_mcast *brmctx;
-
- brmctx = &vlan->br_mcast_ctx;
- if (br_vlan_is_brentry(vlan) &&
- !br_multicast_ctx_vlan_disabled(brmctx))
- __br_multicast_open(&vlan->br_mcast_ctx);
+ if (br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED)) {
+ struct net_bridge_vlan_group *vg;
+ struct net_bridge_vlan *vlan;
+
+ vg = br_vlan_group(br);
+ if (vg) {
+ list_for_each_entry(vlan, &vg->vlan_list, vlist) {
+ struct net_bridge_mcast *brmctx;
+
+ brmctx = &vlan->br_mcast_ctx;
+ if (br_vlan_is_brentry(vlan) &&
+ !br_multicast_ctx_vlan_disabled(brmctx))
+ __br_multicast_open(&vlan->br_mcast_ctx);
+ }
}
}
@@ -3804,22 +3827,80 @@ void br_multicast_toggle_one_vlan(struct net_bridge_vlan
*vlan, bool on)
}
}
-void br_multicast_stop(struct net_bridge *br)
+void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, bool on)
+{
+ struct net_bridge_port *p;
+
+ if (WARN_ON_ONCE(!br_vlan_is_master(vlan)))
+ return;
+
+ list_for_each_entry(p, &vlan->br->port_list, list) {
+ struct net_bridge_vlan *vport;
+
+ vport = br_vlan_find(nbp_vlan_group(p), vlan->vid);
+ if (!vport)
+ continue;
+ br_multicast_toggle_one_vlan(vport, on);
+ }
+}
+
+int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on,
+ struct netlink_ext_ack *extack)
{
struct net_bridge_vlan_group *vg;
struct net_bridge_vlan *vlan;
+ struct net_bridge_port *p;
- ASSERT_RTNL();
+ if (br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) == on)
+ return 0;
+
+ if (on && !br_opt_get(br, BROPT_VLAN_ENABLED)) {
+ NL_SET_ERR_MSG_MOD(extack, "Cannot enable multicast vlan snooping with
vlan filtering disabled");
+ return -EINVAL;
+ }
vg = br_vlan_group(br);
- if (vg) {
- list_for_each_entry(vlan, &vg->vlan_list, vlist) {
- struct net_bridge_mcast *brmctx;
-
- brmctx = &vlan->br_mcast_ctx;
- if (br_vlan_is_brentry(vlan) &&
- !br_multicast_ctx_vlan_disabled(brmctx))
- __br_multicast_stop(&vlan->br_mcast_ctx);
+ if (!vg)
+ return 0;
+
+ br_opt_toggle(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED, on);
+
+ /* disable/enable non-vlan mcast contexts based on vlan snooping */
+ if (on)
+ __br_multicast_stop(&br->multicast_ctx);
+ else
+ __br_multicast_open(&br->multicast_ctx);
+ list_for_each_entry(p, &br->port_list, list) {
+ if (on)
+ br_multicast_disable_port(p);
+ else
+ br_multicast_enable_port(p);
+ }
+
+ list_for_each_entry(vlan, &vg->vlan_list, vlist)
+ br_multicast_toggle_vlan(vlan, on);
+
+ return 0;
+}
+
+void br_multicast_stop(struct net_bridge *br)
+{
+ ASSERT_RTNL();
+
+ if (br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED)) {
+ struct net_bridge_vlan_group *vg;
+ struct net_bridge_vlan *vlan;
+
+ vg = br_vlan_group(br);
+ if (vg) {
+ list_for_each_entry(vlan, &vg->vlan_list, vlist) {
+ struct net_bridge_mcast *brmctx;
+
+ brmctx = &vlan->br_mcast_ctx;
+ if (br_vlan_is_brentry(vlan) &&
+ !br_multicast_ctx_vlan_disabled(brmctx))
+ __br_multicast_stop(&vlan->br_mcast_ctx);
+ }
}
}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index a27c8b8f6efd..a643f6bf759f 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -441,6 +441,7 @@ enum net_bridge_opts {
BROPT_VLAN_STATS_PER_PORT,
BROPT_NO_LL_LEARN,
BROPT_VLAN_BRIDGE_BINDING,
+ BROPT_MCAST_VLAN_SNOOPING_ENABLED,
};
struct net_bridge {
@@ -842,8 +843,9 @@ int br_ioctl_deviceless_stub(struct net *net, unsigned int
cmd,
/* br_multicast.c */
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
-int br_multicast_rcv(struct net_bridge_mcast *brmctx,
- struct net_bridge_mcast_port *pmctx,
+int br_multicast_rcv(struct net_bridge_mcast **brmctx,
+ struct net_bridge_mcast_port **pmctx,
+ struct net_bridge_vlan *vlan,
struct sk_buff *skb, u16 vid);
struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx,
struct sk_buff *skb, u16 vid);
@@ -917,6 +919,9 @@ void br_multicast_port_ctx_init(struct net_bridge_port
*port,
struct net_bridge_mcast_port *pmctx);
void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx);
void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on);
+void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, bool on);
+int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on,
+ struct netlink_ext_ack *extack);
static inline bool br_group_is_l2(const struct br_ip *group)
{
@@ -1103,7 +1108,8 @@ br_multicast_port_ctx_get_global(const struct
net_bridge_mcast_port *pmctx)
static inline bool
br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx)
{
- return br_multicast_ctx_is_vlan(brmctx) &&
+ return br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) &&
+ br_multicast_ctx_is_vlan(brmctx) &&
!(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED);
}
@@ -1121,8 +1127,9 @@ br_multicast_port_ctx_vlan_disabled(const struct
net_bridge_mcast_port *pmctx)
!(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED);
}
#else
-static inline int br_multicast_rcv(struct net_bridge_mcast *brmctx,
- struct net_bridge_mcast_port *pmctx,
+static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx,
+ struct net_bridge_mcast_port **pmctx,
+ struct net_bridge_vlan *vlan,
struct sk_buff *skb,
u16 vid)
{
@@ -1258,13 +1265,26 @@ static inline void br_multicast_toggle_one_vlan(struct
net_bridge_vlan *vlan,
bool on)
{
}
+
+static inline void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan,
+ bool on)
+{
+}
+
+static inline int br_multicast_toggle_vlan_snooping(struct net_bridge *br,
+ bool on,
+ struct netlink_ext_ack *extack)
+{
+ return -EOPNOTSUPP;
+}
#endif
/* br_vlan.c */
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
bool br_allowed_ingress(const struct net_bridge *br,
struct net_bridge_vlan_group *vg, struct sk_buff *skb,
- u16 *vid, u8 *state);
+ u16 *vid, u8 *state,
+ struct net_bridge_vlan **vlan);
bool br_allowed_egress(struct net_bridge_vlan_group *vg,
const struct sk_buff *skb);
bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid);
@@ -1376,8 +1396,11 @@ static inline u16 br_vlan_flags(const struct
net_bridge_vlan *v, u16 pvid)
static inline bool br_allowed_ingress(const struct net_bridge *br,
struct net_bridge_vlan_group *vg,
struct sk_buff *skb,
- u16 *vid, u8 *state)
+ u16 *vid, u8 *state,
+ struct net_bridge_vlan **vlan)
+
{
+ *vlan = NULL;
return true;
}
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 1a8cb2b1b762..ab4969a4a380 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -481,7 +481,8 @@ struct sk_buff *br_handle_vlan(struct net_bridge *br,
static bool __allowed_ingress(const struct net_bridge *br,
struct net_bridge_vlan_group *vg,
struct sk_buff *skb, u16 *vid,
- u8 *state)
+ u8 *state,
+ struct net_bridge_vlan **vlan)
{
struct pcpu_sw_netstats *stats;
struct net_bridge_vlan *v;
@@ -546,8 +547,9 @@ static bool __allowed_ingress(const struct net_bridge *br,
*/
skb->vlan_tci |= pvid;
- /* if stats are disabled we can avoid the lookup */
- if (!br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) {
+ /* if snooping and stats are disabled we can avoid the lookup */
+ if (!br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) &&
+ !br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) {
if (*state == BR_STATE_FORWARDING) {
*state = br_vlan_get_pvid_state(vg);
return br_vlan_state_allowed(*state, true);
@@ -574,6 +576,8 @@ static bool __allowed_ingress(const struct net_bridge *br,
u64_stats_update_end(&stats->syncp);
}
+ *vlan = v;
+
return true;
drop:
@@ -583,17 +587,19 @@ static bool __allowed_ingress(const struct net_bridge *br,
bool br_allowed_ingress(const struct net_bridge *br,
struct net_bridge_vlan_group *vg, struct sk_buff *skb,
- u16 *vid, u8 *state)
+ u16 *vid, u8 *state,
+ struct net_bridge_vlan **vlan)
{
/* If VLAN filtering is disabled on the bridge, all packets are
* permitted.
*/
+ *vlan = NULL;
if (!br_opt_get(br, BROPT_VLAN_ENABLED)) {
BR_INPUT_SKB_CB(skb)->vlan_filtered = false;
return true;
}
- return __allowed_ingress(br, vg, skb, vid, state);
+ return __allowed_ingress(br, vg, skb, vid, state, vlan);
}
/* Called under RCU. */
@@ -834,6 +840,10 @@ int br_vlan_filter_toggle(struct net_bridge *br, unsigned
long val,
br_manage_promisc(br);
recalculate_group_addr(br);
br_recalculate_fwd_mask(br);
+ if (!val && br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED)) {
+ br_info(br, "vlan filtering disabled, automatically disabling multicast
vlan snooping\n");
+ br_multicast_toggle_vlan_snooping(br, false, NULL);
+ }
return 0;
}
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 07/15] net: bridge: multicast: add helper to get port mcast context from port group
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Add br_multicast_pg_to_port_ctx() which returns the proper port multicast
context from either port or vlan based on bridge option and vlan flags.
As the comment inside explains the locking is a bit tricky, we rely on
the fact that BR_VLFLAG_MCAST_ENABLED requires multicast_lock to change
and we also require it to be held to call that helper. If we find the
vlan under rcu and it still has the flag then we can be sure it will be
alive until we unlock multicast_lock which should be enough.
Note that the context might change from vlan to bridge between different
calls to this helper as the mcast vlan knob requires only rtnl so it should
be used carefully and for read-only/check purposes.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
net/bridge/br_multicast.c | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index b71772828b23..353406f2971a 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -192,6 +192,44 @@ struct net_bridge_mdb_entry *br_mdb_get(struct
net_bridge_mcast *brmctx,
return br_mdb_ip_get_rcu(br, &ip);
}
+/* IMPORTANT: this function must be used only when the contexts cannot be
+ * passed down (e.g. timer) and must be used for read-only purposes because
+ * the vlan snooping option can change, so it can return any context
+ * (non-vlan or vlan). Its initial intended purpose is to read timer values
+ * from the *current* context based on the option. At worst that could lead
+ * to inconsistent timers when the contexts are changed, i.e. src timer
+ * which needs to re-arm with a specific delay taken from the old context
+ */
+static struct net_bridge_mcast_port *
+br_multicast_pg_to_port_ctx(const struct net_bridge_port_group *pg)
+{
+ struct net_bridge_mcast_port *pmctx = &pg->key.port->multicast_ctx;
+ struct net_bridge_vlan *vlan;
+
+ lockdep_assert_held_once(&pg->key.port->br->multicast_lock);
+
+ /* if vlan snooping is disabled use the port's multicast context */
+ if (!pg->key.addr.vid ||
+ !br_opt_get(pg->key.port->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED))
+ goto out;
+
+ /* locking is tricky here, due to different rules for multicast and
+ * vlans we need to take rcu to find the vlan and make sure it has
+ * the BR_VLFLAG_MCAST_ENABLED flag set, it can only change under
+ * multicast_lock which must be already held here, so the vlan's pmctx
+ * can safely be used on return
+ */
+ rcu_read_lock();
+ vlan = br_vlan_find(nbp_vlan_group(pg->key.port), pg->key.addr.vid);
+ if (vlan &&
!br_multicast_port_ctx_vlan_disabled(&vlan->port_mcast_ctx))
+ pmctx = &vlan->port_mcast_ctx;
+ else
+ pmctx = NULL;
+ rcu_read_unlock();
+out:
+ return pmctx;
+}
+
static bool br_port_group_equal(struct net_bridge_port_group *p,
struct net_bridge_port *port,
const unsigned char *src)
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 08/15] net: bridge: multicast: use the port group to port context helper
From: Nikolay Aleksandrov <nikolay at nvidia.com> We need to use the new port group to port context helper in places where we cannot pass down the proper context (i.e. functions that can be called by timers or outside the packet snooping paths). Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com> --- net/bridge/br_multicast.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 353406f2971a..e61e23c0ce17 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -309,7 +309,9 @@ void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, mp = br_mdb_ip_get(br, &pg->key.addr); if (!mp) return; - pmctx = &pg->key.port->multicast_ctx; + pmctx = br_multicast_pg_to_port_ctx(pg); + if (!pmctx) + return; memset(&sg_ip, 0, sizeof(sg_ip)); sg_ip = pg->key.addr; @@ -435,7 +437,6 @@ void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, br_multicast_sg_host_state(star_mp, sg); memset(&sg_key, 0, sizeof(sg_key)); sg_key.addr = sg->key.addr; - brmctx = &br->multicast_ctx; /* we need to add all exclude ports to the S,G */ for (pg = mlock_dereference(star_mp->ports, br); pg; @@ -449,7 +450,11 @@ void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, if (br_sg_port_find(br, &sg_key)) continue; - pmctx = &pg->key.port->multicast_ctx; + pmctx = br_multicast_pg_to_port_ctx(pg); + if (!pmctx) + continue; + brmctx = br_multicast_port_ctx_get_global(pmctx); + src_pg = __br_multicast_add_group(brmctx, pmctx, &sg->key.addr, sg->eth_addr, @@ -473,7 +478,9 @@ static void br_multicast_fwd_src_add(struct net_bridge_group_src *src) return; memset(&sg_ip, 0, sizeof(sg_ip)); - pmctx = &src->pg->key.port->multicast_ctx; + pmctx = br_multicast_pg_to_port_ctx(src->pg); + if (!pmctx) + return; brmctx = br_multicast_port_ctx_get_global(pmctx); sg_ip = src->pg->key.addr; sg_ip.src = src->addr.src; @@ -1696,8 +1703,10 @@ static void br_multicast_port_group_rexmit(struct timer_list *t) !br_opt_get(br, BROPT_MULTICAST_QUERIER)) goto out; - brmctx = &br->multicast_ctx; - pmctx = &pg->key.port->multicast_ctx; + pmctx = br_multicast_pg_to_port_ctx(pg); + if (!pmctx) + goto out; + brmctx = br_multicast_port_ctx_get_global(pmctx); if (pg->key.addr.proto == htons(ETH_P_IP)) other_query = &brmctx->ip4_other_query; #if IS_ENABLED(CONFIG_IPV6) -- 2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 09/15] net: bridge: multicast: check if should use vlan mcast ctx
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Add helpers which check if the current bridge/port multicast context
should be used (i.e. they're not disabled) and use them for Rx IGMP/MLD
processing, timers and new group addition. It is important for vlans to
disable processing of timer/packet after the multicast_lock is obtained
if the vlan context doesn't have BR_VLFLAG_MCAST_ENABLED. There are two
cases when that flag is missing:
- if the vlan is getting destroyed it will be removed and timers will
be stopped
- if the vlan mcast snooping is being disabled
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
net/bridge/br_multicast.c | 59 +++++++++++++++++++++++++++++----------
net/bridge/br_private.h | 18 ++++++++++++
2 files changed, 62 insertions(+), 15 deletions(-)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index e61e23c0ce17..4620946ec7d7 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -147,7 +147,8 @@ struct net_bridge_mdb_entry *br_mdb_get(struct
net_bridge_mcast *brmctx,
struct net_bridge *br = brmctx->br;
struct br_ip ip;
- if (!br_opt_get(br, BROPT_MULTICAST_ENABLED))
+ if (!br_opt_get(br, BROPT_MULTICAST_ENABLED) ||
+ br_multicast_ctx_vlan_global_disabled(brmctx))
return NULL;
if (BR_INPUT_SKB_CB(skb)->igmp)
@@ -230,6 +231,24 @@ br_multicast_pg_to_port_ctx(const struct
net_bridge_port_group *pg)
return pmctx;
}
+/* when snooping we need to check if the contexts should be used
+ * in the following order:
+ * - if pmctx is non-NULL (port), check if it should be used
+ * - if pmctx is NULL (bridge), check if brmctx should be used
+ */
+static bool
+br_multicast_ctx_should_use(const struct net_bridge_mcast *brmctx,
+ const struct net_bridge_mcast_port *pmctx)
+{
+ if (!netif_running(brmctx->br->dev))
+ return false;
+
+ if (pmctx)
+ return !br_multicast_port_ctx_state_disabled(pmctx);
+ else
+ return !br_multicast_ctx_vlan_disabled(brmctx);
+}
+
static bool br_port_group_equal(struct net_bridge_port_group *p,
struct net_bridge_port *port,
const unsigned char *src)
@@ -1311,8 +1330,7 @@ __br_multicast_add_group(struct net_bridge_mcast *brmctx,
struct net_bridge_mdb_entry *mp;
unsigned long now = jiffies;
- if (!netif_running(brmctx->br->dev) ||
- (pmctx && pmctx->port->state == BR_STATE_DISABLED))
+ if (!br_multicast_ctx_should_use(brmctx, pmctx))
goto out;
mp = br_multicast_new_group(brmctx->br, group);
@@ -1532,6 +1550,7 @@ static void br_multicast_querier_expired(struct
net_bridge_mcast *brmctx,
{
spin_lock(&brmctx->br->multicast_lock);
if (!netif_running(brmctx->br->dev) ||
+ br_multicast_ctx_vlan_global_disabled(brmctx) ||
!br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED))
goto out;
@@ -1619,7 +1638,7 @@ static void br_multicast_send_query(struct
net_bridge_mcast *brmctx,
struct br_ip br_group;
unsigned long time;
- if (!netif_running(brmctx->br->dev) ||
+ if (!br_multicast_ctx_should_use(brmctx, pmctx) ||
!br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED) ||
!br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER))
return;
@@ -1655,16 +1674,16 @@ br_multicast_port_query_expired(struct
net_bridge_mcast_port *pmctx,
struct bridge_mcast_own_query *query)
{
struct net_bridge *br = pmctx->port->br;
+ struct net_bridge_mcast *brmctx;
spin_lock(&br->multicast_lock);
- if (pmctx->port->state == BR_STATE_DISABLED ||
- pmctx->port->state == BR_STATE_BLOCKING)
+ if (br_multicast_port_ctx_state_stopped(pmctx))
goto out;
-
- if (query->startup_sent <
br->multicast_ctx.multicast_startup_query_count)
+ brmctx = br_multicast_port_ctx_get_global(pmctx);
+ if (query->startup_sent < brmctx->multicast_startup_query_count)
query->startup_sent++;
- br_multicast_send_query(&br->multicast_ctx, pmctx, query);
+ br_multicast_send_query(brmctx, pmctx, query);
out:
spin_unlock(&br->multicast_lock);
@@ -2582,6 +2601,9 @@ static int br_ip4_multicast_igmp3_report(struct
net_bridge_mcast *brmctx,
continue;
spin_lock_bh(&brmctx->br->multicast_lock);
+ if (!br_multicast_ctx_should_use(brmctx, pmctx))
+ goto unlock_continue;
+
mdst = br_mdb_ip4_get(brmctx->br, group, vid);
if (!mdst)
goto unlock_continue;
@@ -2717,6 +2739,9 @@ static int br_ip6_multicast_mld2_report(struct
net_bridge_mcast *brmctx,
continue;
spin_lock_bh(&brmctx->br->multicast_lock);
+ if (!br_multicast_ctx_should_use(brmctx, pmctx))
+ goto unlock_continue;
+
mdst = br_mdb_ip6_get(brmctx->br, &grec->grec_mca, vid);
if (!mdst)
goto unlock_continue;
@@ -2962,6 +2987,9 @@ static void br_multicast_mark_router(struct
net_bridge_mcast *brmctx,
{
unsigned long now = jiffies;
+ if (!br_multicast_ctx_should_use(brmctx, pmctx))
+ return;
+
if (!pmctx) {
if (brmctx->multicast_router == MDB_RTR_TYPE_TEMP_QUERY) {
if (!br_ip4_multicast_is_router(brmctx) &&
@@ -3060,8 +3088,7 @@ static void br_ip4_multicast_query(struct net_bridge_mcast
*brmctx,
__be32 group;
spin_lock(&brmctx->br->multicast_lock);
- if (!netif_running(brmctx->br->dev) ||
- (pmctx && pmctx->port->state == BR_STATE_DISABLED))
+ if (!br_multicast_ctx_should_use(brmctx, pmctx))
goto out;
group = ih->group;
@@ -3144,8 +3171,7 @@ static int br_ip6_multicast_query(struct net_bridge_mcast
*brmctx,
int err = 0;
spin_lock(&brmctx->br->multicast_lock);
- if (!netif_running(brmctx->br->dev) ||
- (pmctx && pmctx->port->state == BR_STATE_DISABLED))
+ if (!br_multicast_ctx_should_use(brmctx, pmctx))
goto out;
if (transport_len == sizeof(*mld)) {
@@ -3229,8 +3255,7 @@ br_multicast_leave_group(struct net_bridge_mcast *brmctx,
unsigned long time;
spin_lock(&brmctx->br->multicast_lock);
- if (!netif_running(brmctx->br->dev) ||
- (pmctx && pmctx->port->state == BR_STATE_DISABLED))
+ if (!br_multicast_ctx_should_use(brmctx, pmctx))
goto out;
mp = br_mdb_ip_get(brmctx->br, group);
@@ -3609,11 +3634,15 @@ static void br_multicast_query_expired(struct
net_bridge_mcast *brmctx,
struct bridge_mcast_querier *querier)
{
spin_lock(&brmctx->br->multicast_lock);
+ if (br_multicast_ctx_vlan_disabled(brmctx))
+ goto out;
+
if (query->startup_sent < brmctx->multicast_startup_query_count)
query->startup_sent++;
RCU_INIT_POINTER(querier->port, NULL);
br_multicast_send_query(brmctx, NULL, query);
+out:
spin_unlock(&brmctx->br->multicast_lock);
}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index a643f6bf759f..00b93fcc7870 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -1126,6 +1126,24 @@ br_multicast_port_ctx_vlan_disabled(const struct
net_bridge_mcast_port *pmctx)
return br_multicast_port_ctx_is_vlan(pmctx) &&
!(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED);
}
+
+static inline bool
+br_multicast_port_ctx_state_disabled(const struct net_bridge_mcast_port *pmctx)
+{
+ return pmctx->port->state == BR_STATE_DISABLED ||
+ (br_multicast_port_ctx_is_vlan(pmctx) &&
+ (br_multicast_port_ctx_vlan_disabled(pmctx) ||
+ pmctx->vlan->state == BR_STATE_DISABLED));
+}
+
+static inline bool
+br_multicast_port_ctx_state_stopped(const struct net_bridge_mcast_port *pmctx)
+{
+ return br_multicast_port_ctx_state_disabled(pmctx) ||
+ pmctx->port->state == BR_STATE_BLOCKING ||
+ (br_multicast_port_ctx_is_vlan(pmctx) &&
+ pmctx->vlan->state == BR_STATE_BLOCKING);
+}
#else
static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx,
struct net_bridge_mcast_port **pmctx,
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 10/15] net: bridge: multicast: add vlan querier and query support
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Add basic vlan context querier support, if the contexts passed to
multicast_alloc_query are vlan then the query will be tagged. Also
handle querier start/stop of vlan contexts.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
net/bridge/br_multicast.c | 68 ++++++++++++++++++++++++++++++++++-----
1 file changed, 60 insertions(+), 8 deletions(-)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 4620946ec7d7..9d4a18a711e4 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -773,7 +773,28 @@ static void br_multicast_gc(struct hlist_head *head)
}
}
+static void __br_multicast_query_handle_vlan(struct net_bridge_mcast *brmctx,
+ struct net_bridge_mcast_port *pmctx,
+ struct sk_buff *skb)
+{
+ struct net_bridge_vlan *vlan = NULL;
+
+ if (pmctx && br_multicast_port_ctx_is_vlan(pmctx))
+ vlan = pmctx->vlan;
+ else if (br_multicast_ctx_is_vlan(brmctx))
+ vlan = brmctx->vlan;
+
+ if (vlan && !(vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED)) {
+ u16 vlan_proto;
+
+ if (br_vlan_get_proto(brmctx->br->dev, &vlan_proto) != 0)
+ return;
+ __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vlan->vid);
+ }
+}
+
static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge_mcast
*brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct net_bridge_port_group *pg,
__be32 ip_dst, __be32 group,
bool with_srcs, bool over_lmqt,
@@ -822,6 +843,7 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge_mcast *brm
if (!skb)
goto out;
+ __br_multicast_query_handle_vlan(brmctx, pmctx, skb);
skb->protocol = htons(ETH_P_IP);
skb_reset_mac_header(skb);
@@ -919,6 +941,7 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct
net_bridge_mcast *brm
#if IS_ENABLED(CONFIG_IPV6)
static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge_mcast
*brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct net_bridge_port_group *pg,
const struct in6_addr *ip6_dst,
const struct in6_addr *group,
@@ -970,6 +993,7 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge_mcast *brm
if (!skb)
goto out;
+ __br_multicast_query_handle_vlan(brmctx, pmctx, skb);
skb->protocol = htons(ETH_P_IPV6);
/* Ethernet header */
@@ -1082,6 +1106,7 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct
net_bridge_mcast *brm
#endif
static struct sk_buff *br_multicast_alloc_query(struct net_bridge_mcast
*brmctx,
+ struct net_bridge_mcast_port *pmctx,
struct net_bridge_port_group *pg,
struct br_ip *ip_dst,
struct br_ip *group,
@@ -1094,7 +1119,7 @@ static struct sk_buff *br_multicast_alloc_query(struct
net_bridge_mcast *brmctx,
switch (group->proto) {
case htons(ETH_P_IP):
ip4_dst = ip_dst ? ip_dst->dst.ip4 : htonl(INADDR_ALLHOSTS_GROUP);
- return br_ip4_multicast_alloc_query(brmctx, pg,
+ return br_ip4_multicast_alloc_query(brmctx, pmctx, pg,
ip4_dst, group->dst.ip4,
with_srcs, over_lmqt,
sflag, igmp_type,
@@ -1109,7 +1134,7 @@ static struct sk_buff *br_multicast_alloc_query(struct
net_bridge_mcast *brmctx,
ipv6_addr_set(&ip6_dst, htonl(0xff020000), 0, 0,
htonl(1));
- return br_ip6_multicast_alloc_query(brmctx, pg,
+ return br_ip6_multicast_alloc_query(brmctx, pmctx, pg,
&ip6_dst, &group->dst.ip6,
with_srcs, over_lmqt,
sflag, igmp_type,
@@ -1603,9 +1628,12 @@ static void __br_multicast_send_query(struct
net_bridge_mcast *brmctx,
struct sk_buff *skb;
u8 igmp_type;
+ if (!br_multicast_ctx_should_use(brmctx, pmctx))
+ return;
+
again_under_lmqt:
- skb = br_multicast_alloc_query(brmctx, pg, ip_dst, group, with_srcs,
- over_lmqt, sflag, &igmp_type,
+ skb = br_multicast_alloc_query(brmctx, pmctx, pg, ip_dst, group,
+ with_srcs, over_lmqt, sflag, &igmp_type,
need_rexmit);
if (!skb)
return;
@@ -1679,6 +1707,7 @@ br_multicast_port_query_expired(struct
net_bridge_mcast_port *pmctx,
spin_lock(&br->multicast_lock);
if (br_multicast_port_ctx_state_stopped(pmctx))
goto out;
+
brmctx = br_multicast_port_ctx_get_global(pmctx);
if (query->startup_sent < brmctx->multicast_startup_query_count)
query->startup_sent++;
@@ -4129,15 +4158,38 @@ static void br_multicast_start_querier(struct
net_bridge_mcast *brmctx,
rcu_read_lock();
list_for_each_entry_rcu(port, &brmctx->br->port_list, list) {
- if (port->state == BR_STATE_DISABLED ||
- port->state == BR_STATE_BLOCKING)
+ struct bridge_mcast_own_query *ip4_own_query;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct bridge_mcast_own_query *ip6_own_query;
+#endif
+
+ if (br_multicast_port_ctx_state_stopped(&port->multicast_ctx))
continue;
+ if (br_multicast_ctx_is_vlan(brmctx)) {
+ struct net_bridge_vlan *vlan;
+
+ vlan = br_vlan_find(nbp_vlan_group(port), brmctx->vlan->vid);
+ if (!vlan ||
+ br_multicast_port_ctx_state_stopped(&vlan->port_mcast_ctx))
+ continue;
+
+ ip4_own_query = &vlan->port_mcast_ctx.ip4_own_query;
+#if IS_ENABLED(CONFIG_IPV6)
+ ip6_own_query = &vlan->port_mcast_ctx.ip6_own_query;
+#endif
+ } else {
+ ip4_own_query = &port->multicast_ctx.ip4_own_query;
+#if IS_ENABLED(CONFIG_IPV6)
+ ip6_own_query = &port->multicast_ctx.ip6_own_query;
+#endif
+ }
+
if (query == &brmctx->ip4_own_query)
- br_multicast_enable(&port->multicast_ctx.ip4_own_query);
+ br_multicast_enable(ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
else
- br_multicast_enable(&port->multicast_ctx.ip6_own_query);
+ br_multicast_enable(ip6_own_query);
#endif
}
rcu_read_unlock();
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 11/15] net: bridge: multicast: include router port vlan id in notifications
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Use the port multicast context to check if the router port is a vlan and
in case it is include its vlan id in the notification.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
include/uapi/linux/if_bridge.h | 1 +
net/bridge/br_mdb.c | 29 ++++++++++++++++++++++-------
net/bridge/br_multicast.c | 4 ++--
net/bridge/br_private.h | 2 +-
4 files changed, 26 insertions(+), 10 deletions(-)
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 57a63a1572e0..1f7513300cfe 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -629,6 +629,7 @@ enum {
MDBA_ROUTER_PATTR_TYPE,
MDBA_ROUTER_PATTR_INET_TIMER,
MDBA_ROUTER_PATTR_INET6_TIMER,
+ MDBA_ROUTER_PATTR_VID,
__MDBA_ROUTER_PATTR_MAX
};
#define MDBA_ROUTER_PATTR_MAX (__MDBA_ROUTER_PATTR_MAX - 1)
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 5319587198eb..d3383a47a2f2 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -781,12 +781,12 @@ void br_mdb_notify(struct net_device *dev,
static int nlmsg_populate_rtr_fill(struct sk_buff *skb,
struct net_device *dev,
- int ifindex, u32 pid,
+ int ifindex, u16 vid, u32 pid,
u32 seq, int type, unsigned int flags)
{
+ struct nlattr *nest, *port_nest;
struct br_port_msg *bpm;
struct nlmsghdr *nlh;
- struct nlattr *nest;
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*bpm), 0);
if (!nlh)
@@ -800,8 +800,18 @@ static int nlmsg_populate_rtr_fill(struct sk_buff *skb,
if (!nest)
goto cancel;
- if (nla_put_u32(skb, MDBA_ROUTER_PORT, ifindex))
+ port_nest = nla_nest_start_noflag(skb, MDBA_ROUTER_PORT);
+ if (!port_nest)
+ goto end;
+ if (nla_put_nohdr(skb, sizeof(u32), &ifindex)) {
+ nla_nest_cancel(skb, port_nest);
goto end;
+ }
+ if (vid && nla_put_u16(skb, MDBA_ROUTER_PATTR_VID, vid)) {
+ nla_nest_cancel(skb, port_nest);
+ goto end;
+ }
+ nla_nest_end(skb, port_nest);
nla_nest_end(skb, nest);
nlmsg_end(skb, nlh);
@@ -817,23 +827,28 @@ static int nlmsg_populate_rtr_fill(struct sk_buff *skb,
static inline size_t rtnl_rtr_nlmsg_size(void)
{
return NLMSG_ALIGN(sizeof(struct br_port_msg))
- + nla_total_size(sizeof(__u32));
+ + nla_total_size(sizeof(__u32))
+ + nla_total_size(sizeof(u16));
}
-void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port,
+void br_rtr_notify(struct net_device *dev, struct net_bridge_mcast_port *pmctx,
int type)
{
struct net *net = dev_net(dev);
struct sk_buff *skb;
int err = -ENOBUFS;
int ifindex;
+ u16 vid;
- ifindex = port ? port->dev->ifindex : 0;
+ ifindex = pmctx ? pmctx->port->dev->ifindex : 0;
+ vid = pmctx && br_multicast_port_ctx_is_vlan(pmctx) ?
pmctx->vlan->vid :
+ 0;
skb = nlmsg_new(rtnl_rtr_nlmsg_size(), GFP_ATOMIC);
if (!skb)
goto errout;
- err = nlmsg_populate_rtr_fill(skb, dev, ifindex, 0, 0, type, NTF_SELF);
+ err = nlmsg_populate_rtr_fill(skb, dev, ifindex, vid, 0, 0, type,
+ NTF_SELF);
if (err < 0) {
kfree_skb(skb);
goto errout;
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 9d4a18a711e4..fb5e5df571fd 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -2979,7 +2979,7 @@ static void br_multicast_add_router(struct
net_bridge_mcast *brmctx,
* IPv4 or IPv6 multicast router.
*/
if (br_multicast_no_router_otherpf(pmctx, rlist)) {
- br_rtr_notify(pmctx->port->br->dev, pmctx->port, RTM_NEWMDB);
+ br_rtr_notify(pmctx->port->br->dev, pmctx, RTM_NEWMDB);
br_port_mc_router_state_change(pmctx->port, true);
}
}
@@ -4078,7 +4078,7 @@ br_multicast_rport_del_notify(struct net_bridge_mcast_port
*pmctx, bool deleted)
return;
#endif
- br_rtr_notify(pmctx->port->br->dev, pmctx->port, RTM_DELMDB);
+ br_rtr_notify(pmctx->port->br->dev, pmctx, RTM_DELMDB);
br_port_mc_router_state_change(pmctx->port, false);
/* don't allow timer refresh */
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 00b93fcc7870..5515b6c37322 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -885,7 +885,7 @@ int br_mdb_hash_init(struct net_bridge *br);
void br_mdb_hash_fini(struct net_bridge *br);
void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp,
struct net_bridge_port_group *pg, int type);
-void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port,
+void br_rtr_notify(struct net_device *dev, struct net_bridge_mcast_port *pmctx,
int type);
void br_multicast_del_pg(struct net_bridge_mdb_entry *mp,
struct net_bridge_port_group *pg,
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 12/15] net: bridge: vlan: add support for global options
From: Nikolay Aleksandrov <nikolay at nvidia.com>
We can have two types of vlan options depending on context:
- per-device vlan options (split in per-bridge and per-port)
- global vlan options
The second type wasn't supported in the bridge until now, but we need
them for per-vlan multicast support, per-vlan STP support and other
options which require global vlan context. They are contained in the global
bridge vlan context even if the vlan is not configured on the bridge device
itself. This patch adds initial netlink attributes and support for setting
these global vlan options, they can only be set (RTM_NEWVLAN) and the
operation must use the bridge device. Since there are no such options yet
it shouldn't have any functional effect.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
include/uapi/linux/if_bridge.h | 13 ++++++
net/bridge/br_private.h | 4 ++
net/bridge/br_vlan.c | 16 +++++--
net/bridge/br_vlan_options.c | 85 ++++++++++++++++++++++++++++++++++
4 files changed, 115 insertions(+), 3 deletions(-)
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 1f7513300cfe..760b264bd03d 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -485,10 +485,15 @@ enum {
* [BRIDGE_VLANDB_ENTRY_INFO]
* ...
* }
+ * [BRIDGE_VLANDB_GLOBAL_OPTIONS] = {
+ * [BRIDGE_VLANDB_GOPTS_ID]
+ * ...
+ * }
*/
enum {
BRIDGE_VLANDB_UNSPEC,
BRIDGE_VLANDB_ENTRY,
+ BRIDGE_VLANDB_GLOBAL_OPTIONS,
__BRIDGE_VLANDB_MAX,
};
#define BRIDGE_VLANDB_MAX (__BRIDGE_VLANDB_MAX - 1)
@@ -538,6 +543,14 @@ enum {
};
#define BRIDGE_VLANDB_STATS_MAX (__BRIDGE_VLANDB_STATS_MAX - 1)
+enum {
+ BRIDGE_VLANDB_GOPTS_UNSPEC,
+ BRIDGE_VLANDB_GOPTS_ID,
+ BRIDGE_VLANDB_GOPTS_RANGE,
+ __BRIDGE_VLANDB_GOPTS_MAX
+};
+#define BRIDGE_VLANDB_GOPTS_MAX (__BRIDGE_VLANDB_GOPTS_MAX - 1)
+
/* Bridge multicast database attributes
* [MDBA_MDB] = {
* [MDBA_MDB_ENTRY] = {
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 5515b6c37322..bc920bc1ff44 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -1605,6 +1605,10 @@ int br_vlan_process_options(const struct net_bridge *br,
struct net_bridge_vlan *range_end,
struct nlattr **tb,
struct netlink_ext_ack *extack);
+int br_vlan_rtm_process_global_options(struct net_device *dev,
+ const struct nlattr *attr,
+ int cmd,
+ struct netlink_ext_ack *extack);
/* vlan state manipulation helpers using *_ONCE to annotate lock-free access */
static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v)
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index ab4969a4a380..dcb5acf783d2 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -2203,12 +2203,22 @@ static int br_vlan_rtm_process(struct sk_buff *skb,
struct nlmsghdr *nlh,
}
nlmsg_for_each_attr(attr, nlh, sizeof(*bvm), rem) {
- if (nla_type(attr) != BRIDGE_VLANDB_ENTRY)
+ switch (nla_type(attr)) {
+ case BRIDGE_VLANDB_ENTRY:
+ err = br_vlan_rtm_process_one(dev, attr,
+ nlh->nlmsg_type,
+ extack);
+ break;
+ case BRIDGE_VLANDB_GLOBAL_OPTIONS:
+ err = br_vlan_rtm_process_global_options(dev, attr,
+ nlh->nlmsg_type,
+ extack);
+ break;
+ default:
continue;
+ }
vlans++;
- err = br_vlan_rtm_process_one(dev, attr, nlh->nlmsg_type,
- extack);
if (err)
break;
}
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
index b4add9ea8964..a7d5a2334207 100644
--- a/net/bridge/br_vlan_options.c
+++ b/net/bridge/br_vlan_options.c
@@ -258,3 +258,88 @@ int br_vlan_process_options(const struct net_bridge *br,
return err;
}
+
+static int br_vlan_process_global_one_opts(const struct net_bridge *br,
+ struct net_bridge_vlan_group *vg,
+ struct net_bridge_vlan *v,
+ struct nlattr **tb,
+ bool *changed,
+ struct netlink_ext_ack *extack)
+{
+ *changed = false;
+ return 0;
+}
+
+static const struct nla_policy br_vlan_db_gpol[BRIDGE_VLANDB_GOPTS_MAX + 1] = {
+ [BRIDGE_VLANDB_GOPTS_ID] = { .type = NLA_U16 },
+ [BRIDGE_VLANDB_GOPTS_RANGE] = { .type = NLA_U16 },
+};
+
+int br_vlan_rtm_process_global_options(struct net_device *dev,
+ const struct nlattr *attr,
+ int cmd,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[BRIDGE_VLANDB_GOPTS_MAX + 1];
+ struct net_bridge_vlan_group *vg;
+ struct net_bridge_vlan *v;
+ u16 vid, vid_range = 0;
+ struct net_bridge *br;
+ int err = 0;
+
+ if (cmd != RTM_NEWVLAN) {
+ NL_SET_ERR_MSG_MOD(extack, "Global vlan options support only set
operation");
+ return -EINVAL;
+ }
+ if (!netif_is_bridge_master(dev)) {
+ NL_SET_ERR_MSG_MOD(extack, "Global vlan options can only be set on
bridge device");
+ return -EINVAL;
+ }
+ br = netdev_priv(dev);
+ vg = br_vlan_group(br);
+ if (WARN_ON(!vg))
+ return -ENODEV;
+
+ err = nla_parse_nested(tb, BRIDGE_VLANDB_GOPTS_MAX, attr,
+ br_vlan_db_gpol, extack);
+ if (err)
+ return err;
+
+ if (!tb[BRIDGE_VLANDB_GOPTS_ID]) {
+ NL_SET_ERR_MSG_MOD(extack, "Missing vlan entry id");
+ return -EINVAL;
+ }
+ vid = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_ID]);
+ if (!br_vlan_valid_id(vid, extack))
+ return -EINVAL;
+
+ if (tb[BRIDGE_VLANDB_GOPTS_RANGE]) {
+ vid_range = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_RANGE]);
+ if (!br_vlan_valid_id(vid_range, extack))
+ return -EINVAL;
+ if (vid >= vid_range) {
+ NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start
vlan id");
+ return -EINVAL;
+ }
+ } else {
+ vid_range = vid;
+ }
+
+ for (; vid <= vid_range; vid++) {
+ bool changed = false;
+
+ v = br_vlan_find(vg, vid);
+ if (!v) {
+ NL_SET_ERR_MSG_MOD(extack, "Vlan in range doesn't exist, can't
process global options");
+ err = -ENOENT;
+ break;
+ }
+
+ err = br_vlan_process_global_one_opts(br, vg, v, tb, &changed,
+ extack);
+ if (err)
+ break;
+ }
+
+ return err;
+}
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 13/15] net: bridge: vlan: add support for dumping global vlan options
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Add a new vlan options dump flag which causes only global vlan options
to be dumped. The dumps are done only with bridge devices, ports are
ignored. They support vlan compression if the options in sequential
vlans are equal (currently always true).
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
include/uapi/linux/if_bridge.h | 1 +
net/bridge/br_private.h | 4 ++++
net/bridge/br_vlan.c | 41 +++++++++++++++++++++++++++-------
net/bridge/br_vlan_options.c | 31 +++++++++++++++++++++++++
4 files changed, 69 insertions(+), 8 deletions(-)
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 760b264bd03d..2203eb749d31 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -479,6 +479,7 @@ enum {
/* flags used in BRIDGE_VLANDB_DUMP_FLAGS attribute to affect dumps */
#define BRIDGE_VLANDB_DUMPF_STATS (1 << 0) /* Include stats in the dump
*/
+#define BRIDGE_VLANDB_DUMPF_GLOBAL (1 << 1) /* Dump global vlan options
only */
/* Bridge vlan RTM attributes
* [BRIDGE_VLANDB_ENTRY] = {
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index bc920bc1ff44..e0a982275a93 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -1609,6 +1609,10 @@ int br_vlan_rtm_process_global_options(struct net_device
*dev,
const struct nlattr *attr,
int cmd,
struct netlink_ext_ack *extack);
+bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr,
+ const struct net_bridge_vlan *r_end);
+bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range,
+ const struct net_bridge_vlan *v_opts);
/* vlan state manipulation helpers using *_ONCE to annotate lock-free access */
static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v)
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index dcb5acf783d2..e66b004df763 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -1919,6 +1919,7 @@ static int br_vlan_dump_dev(const struct net_device *dev,
u32 dump_flags)
{
struct net_bridge_vlan *v, *range_start = NULL, *range_end = NULL;
+ bool dump_global = !!(dump_flags & BRIDGE_VLANDB_DUMPF_GLOBAL);
bool dump_stats = !!(dump_flags & BRIDGE_VLANDB_DUMPF_STATS);
struct net_bridge_vlan_group *vg;
int idx = 0, s_idx = cb->args[1];
@@ -1937,6 +1938,10 @@ static int br_vlan_dump_dev(const struct net_device *dev,
vg = br_vlan_group_rcu(br);
p = NULL;
} else {
+ /* global options are dumped only for bridge devices */
+ if (dump_global)
+ return 0;
+
p = br_port_get_rcu(dev);
if (WARN_ON(!p))
return -EINVAL;
@@ -1959,7 +1964,7 @@ static int br_vlan_dump_dev(const struct net_device *dev,
/* idx must stay at range's beginning until it is filled in */
list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
- if (!br_vlan_should_use(v))
+ if (!dump_global && !br_vlan_should_use(v))
continue;
if (idx < s_idx) {
idx++;
@@ -1972,8 +1977,21 @@ static int br_vlan_dump_dev(const struct net_device *dev,
continue;
}
- if (dump_stats || v->vid == pvid ||
- !br_vlan_can_enter_range(v, range_end)) {
+ if (dump_global) {
+ if (br_vlan_global_opts_can_enter_range(v, range_end))
+ continue;
+ if (!br_vlan_global_opts_fill(skb, range_start->vid,
+ range_end->vid,
+ range_start)) {
+ err = -EMSGSIZE;
+ break;
+ }
+ /* advance number of filled vlans */
+ idx += range_end->vid - range_start->vid + 1;
+
+ range_start = v;
+ } else if (dump_stats || v->vid == pvid ||
+ !br_vlan_can_enter_range(v, range_end)) {
u16 vlan_flags = br_vlan_flags(range_start, pvid);
if (!br_vlan_fill_vids(skb, range_start->vid,
@@ -1995,11 +2013,18 @@ static int br_vlan_dump_dev(const struct net_device
*dev,
* - last vlan (range_start == range_end, not in range)
* - last vlan range (range_start != range_end, in range)
*/
- if (!err && range_start &&
- !br_vlan_fill_vids(skb, range_start->vid, range_end->vid,
- range_start, br_vlan_flags(range_start, pvid),
- dump_stats))
- err = -EMSGSIZE;
+ if (!err && range_start) {
+ if (dump_global &&
+ !br_vlan_global_opts_fill(skb, range_start->vid,
+ range_end->vid, range_start))
+ err = -EMSGSIZE;
+ else if (!dump_global &&
+ !br_vlan_fill_vids(skb, range_start->vid,
+ range_end->vid, range_start,
+ br_vlan_flags(range_start, pvid),
+ dump_stats))
+ err = -EMSGSIZE;
+ }
cb->args[1] = err ? idx : 0;
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
index a7d5a2334207..f290f5140547 100644
--- a/net/bridge/br_vlan_options.c
+++ b/net/bridge/br_vlan_options.c
@@ -259,6 +259,37 @@ int br_vlan_process_options(const struct net_bridge *br,
return err;
}
+bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr,
+ const struct net_bridge_vlan *r_end)
+{
+ return v_curr->vid - r_end->vid == 1;
+}
+
+bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range,
+ const struct net_bridge_vlan *v_opts)
+{
+ struct nlattr *nest;
+
+ nest = nla_nest_start(skb, BRIDGE_VLANDB_GLOBAL_OPTIONS);
+ if (!nest)
+ return false;
+
+ if (nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_ID, vid))
+ goto out_err;
+
+ if (vid_range && vid < vid_range &&
+ nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_RANGE, vid_range))
+ goto out_err;
+
+ nla_nest_end(skb, nest);
+
+ return true;
+
+out_err:
+ nla_nest_cancel(skb, nest);
+ return false;
+}
+
static int br_vlan_process_global_one_opts(const struct net_bridge *br,
struct net_bridge_vlan_group *vg,
struct net_bridge_vlan *v,
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 14/15] net: bridge: vlan: notify when global options change
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Add support for global options notifications. They use only RTM_NEWVLAN
since global options can only be set and are contained in a separate
vlan global options attribute. Notifications are compressed in ranges
where possible, i.e. the sequential vlan options are equal.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
net/bridge/br_vlan_options.c | 80 +++++++++++++++++++++++++++++++++++-
1 file changed, 79 insertions(+), 1 deletion(-)
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
index f290f5140547..827bfc319599 100644
--- a/net/bridge/br_vlan_options.c
+++ b/net/bridge/br_vlan_options.c
@@ -290,6 +290,57 @@ bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid,
u16 vid_range,
return false;
}
+static size_t rtnl_vlan_global_opts_nlmsg_size(void)
+{
+ return NLMSG_ALIGN(sizeof(struct br_vlan_msg))
+ + nla_total_size(0) /* BRIDGE_VLANDB_GLOBAL_OPTIONS */
+ + nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_GOPTS_ID */
+ + nla_total_size(sizeof(u16)); /* BRIDGE_VLANDB_GOPTS_RANGE */
+}
+
+static void br_vlan_global_opts_notify(const struct net_bridge *br,
+ u16 vid, u16 vid_range)
+{
+ struct net_bridge_vlan *v;
+ struct br_vlan_msg *bvm;
+ struct nlmsghdr *nlh;
+ struct sk_buff *skb;
+ int err = -ENOBUFS;
+
+ /* right now notifications are done only with rtnl held */
+ ASSERT_RTNL();
+
+ skb = nlmsg_new(rtnl_vlan_global_opts_nlmsg_size(), GFP_KERNEL);
+ if (!skb)
+ goto out_err;
+
+ err = -EMSGSIZE;
+ nlh = nlmsg_put(skb, 0, 0, RTM_NEWVLAN, sizeof(*bvm), 0);
+ if (!nlh)
+ goto out_err;
+ bvm = nlmsg_data(nlh);
+ memset(bvm, 0, sizeof(*bvm));
+ bvm->family = AF_BRIDGE;
+ bvm->ifindex = br->dev->ifindex;
+
+ /* need to find the vlan due to flags/options */
+ v = br_vlan_find(br_vlan_group(br), vid);
+ if (!v)
+ goto out_kfree;
+
+ if (!br_vlan_global_opts_fill(skb, vid, vid_range, v))
+ goto out_err;
+
+ nlmsg_end(skb, nlh);
+ rtnl_notify(skb, dev_net(br->dev), 0, RTNLGRP_BRVLAN, NULL, GFP_KERNEL);
+ return;
+
+out_err:
+ rtnl_set_sk_err(dev_net(br->dev), RTNLGRP_BRVLAN, err);
+out_kfree:
+ kfree_skb(skb);
+}
+
static int br_vlan_process_global_one_opts(const struct net_bridge *br,
struct net_bridge_vlan_group *vg,
struct net_bridge_vlan *v,
@@ -311,9 +362,9 @@ int br_vlan_rtm_process_global_options(struct net_device
*dev,
int cmd,
struct netlink_ext_ack *extack)
{
+ struct net_bridge_vlan *v, *curr_start = NULL, *curr_end = NULL;
struct nlattr *tb[BRIDGE_VLANDB_GOPTS_MAX + 1];
struct net_bridge_vlan_group *vg;
- struct net_bridge_vlan *v;
u16 vid, vid_range = 0;
struct net_bridge *br;
int err = 0;
@@ -370,7 +421,34 @@ int br_vlan_rtm_process_global_options(struct net_device
*dev,
extack);
if (err)
break;
+
+ if (changed) {
+ /* vlan options changed, check for range */
+ if (!curr_start) {
+ curr_start = v;
+ curr_end = v;
+ continue;
+ }
+
+ if (!br_vlan_global_opts_can_enter_range(v, curr_end)) {
+ br_vlan_global_opts_notify(br, curr_start->vid,
+ curr_end->vid);
+ curr_start = v;
+ }
+ curr_end = v;
+ } else {
+ /* nothing changed and nothing to notify yet */
+ if (!curr_start)
+ continue;
+
+ br_vlan_global_opts_notify(br, curr_start->vid,
+ curr_end->vid);
+ curr_start = NULL;
+ curr_end = NULL;
+ }
}
+ if (curr_start)
+ br_vlan_global_opts_notify(br, curr_start->vid, curr_end->vid);
return err;
}
--
2.31.1
Nikolay Aleksandrov
2021-Jul-19 17:06 UTC
[Bridge] [PATCH net-next 15/15] net: bridge: vlan: add mcast snooping control
From: Nikolay Aleksandrov <nikolay at nvidia.com>
Add a new global vlan option which controls whether multicast snooping
is enabled or disabled for a single vlan. It controls the vlan private
flag: BR_VLFLAG_GLOBAL_MCAST_ENABLED.
Signed-off-by: Nikolay Aleksandrov <nikolay at nvidia.com>
---
include/uapi/linux/if_bridge.h | 1 +
net/bridge/br_multicast.c | 16 ++++++++++++++++
net/bridge/br_private.h | 7 +++++++
net/bridge/br_vlan_options.c | 24 +++++++++++++++++++++++-
4 files changed, 47 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 2203eb749d31..f7997a3f7f82 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -548,6 +548,7 @@ enum {
BRIDGE_VLANDB_GOPTS_UNSPEC,
BRIDGE_VLANDB_GOPTS_ID,
BRIDGE_VLANDB_GOPTS_RANGE,
+ BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING,
__BRIDGE_VLANDB_GOPTS_MAX
};
#define BRIDGE_VLANDB_GOPTS_MAX (__BRIDGE_VLANDB_GOPTS_MAX - 1)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index fb5e5df571fd..976491951c82 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -3988,6 +3988,22 @@ int br_multicast_toggle_vlan_snooping(struct net_bridge
*br, bool on,
return 0;
}
+bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on)
+{
+ ASSERT_RTNL();
+
+ /* BR_VLFLAG_GLOBAL_MCAST_ENABLED relies on eventual consistency and
+ * requires only RTNL to change
+ */
+ if (on == !!(vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED))
+ return false;
+
+ vlan->priv_flags ^= BR_VLFLAG_GLOBAL_MCAST_ENABLED;
+ br_multicast_toggle_vlan(vlan, on);
+
+ return true;
+}
+
void br_multicast_stop(struct net_bridge *br)
{
ASSERT_RTNL();
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index e0a982275a93..af1f5c1c6b88 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -922,6 +922,7 @@ void br_multicast_toggle_one_vlan(struct net_bridge_vlan
*vlan, bool on);
void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, bool on);
int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on,
struct netlink_ext_ack *extack);
+bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on);
static inline bool br_group_is_l2(const struct br_ip *group)
{
@@ -1295,6 +1296,12 @@ static inline int
br_multicast_toggle_vlan_snooping(struct net_bridge *br,
{
return -EOPNOTSUPP;
}
+
+static inline bool br_multicast_toggle_global_vlan(struct net_bridge_vlan
*vlan,
+ bool on)
+{
+ return false;
+}
#endif
/* br_vlan.c */
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
index 827bfc319599..4ef975b20185 100644
--- a/net/bridge/br_vlan_options.c
+++ b/net/bridge/br_vlan_options.c
@@ -262,7 +262,9 @@ int br_vlan_process_options(const struct net_bridge *br,
bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr,
const struct net_bridge_vlan *r_end)
{
- return v_curr->vid - r_end->vid == 1;
+ return v_curr->vid - r_end->vid == 1 &&
+ ((v_curr->priv_flags ^ r_end->priv_flags) &
+ BR_VLFLAG_GLOBAL_MCAST_ENABLED) == 0;
}
bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range,
@@ -281,6 +283,12 @@ bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid,
u16 vid_range,
nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_RANGE, vid_range))
goto out_err;
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+ if (nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING,
+ !!(v_opts->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED)))
+ goto out_err;
+#endif
+
nla_nest_end(skb, nest);
return true;
@@ -295,6 +303,9 @@ static size_t rtnl_vlan_global_opts_nlmsg_size(void)
return NLMSG_ALIGN(sizeof(struct br_vlan_msg))
+ nla_total_size(0) /* BRIDGE_VLANDB_GLOBAL_OPTIONS */
+ nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_GOPTS_ID */
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+ + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING */
+#endif
+ nla_total_size(sizeof(u16)); /* BRIDGE_VLANDB_GOPTS_RANGE */
}
@@ -349,12 +360,23 @@ static int br_vlan_process_global_one_opts(const struct
net_bridge *br,
struct netlink_ext_ack *extack)
{
*changed = false;
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+ if (tb[BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING]) {
+ u8 mc_snooping;
+
+ mc_snooping = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING]);
+ if (br_multicast_toggle_global_vlan(v, !!mc_snooping))
+ *changed = true;
+ }
+#endif
+
return 0;
}
static const struct nla_policy br_vlan_db_gpol[BRIDGE_VLANDB_GOPTS_MAX + 1] = {
[BRIDGE_VLANDB_GOPTS_ID] = { .type = NLA_U16 },
[BRIDGE_VLANDB_GOPTS_RANGE] = { .type = NLA_U16 },
+ [BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING] = { .type = NLA_U8 },
};
int br_vlan_rtm_process_global_options(struct net_device *dev,
--
2.31.1
patchwork-bot+netdevbpf at kernel.org
2021-Jul-20 13:30 UTC
[Bridge] [PATCH net-next 00/15] net: bridge: multicast: add vlan support
Hello: This series was applied to netdev/net-next.git (refs/heads/master): On Mon, 19 Jul 2021 20:06:22 +0300 you wrote:> From: Nikolay Aleksandrov <nikolay at nvidia.com> > > Hi all, > This patchset adds initial per-vlan multicast support, most of the code > deals with moving to multicast context pointers from bridge/port pointers. > That allows us to switch them with the per-vlan contexts when a multicast > packet is being processed and vlan multicast snooping has been enabled. > That is controlled by a global bridge option added in patch 06 which is > off by default (BR_BOOLOPT_MCAST_VLAN_SNOOPING). It is important to note > that this option can change only under RTNL and doesn't require > multicast_lock, so we need to be careful when retrieving mcast contexts > in parallel. For packet processing they are switched only once in > br_multicast_rcv() and then used until the packet has been processed. > For the most part we need these contexts only to read config values and > check if they are disabled. The global mcast state which is maintained > consists of querier and router timers, the rest are config options. > The port mcast state which is maintained consists of query timer and > link to router port list if it's ever marked as a router port. Port > multicast contexts _must_ be used only with their respective global > contexts, that is a bridge port's mcast context must be used only with > bridge's global mcast context and a vlan/port's mcast context must be > used only with that vlan's global mcast context due to the router port > lists. This way a bridge port can be marked as a router in multiple > vlans, but might not be a router in some other vlan. Also this allows us > to have per-vlan querier elections, per-vlan queries and basically the > whole multicast state becomes per-vlan when the option is enabled. > One of the hardest parts is synchronization with vlan's memory > management, that is done through a new vlan flag: BR_VLFLAG_MCAST_ENABLED > which is changed only under multicast_lock. When a vlan is being > destroyed first that flag is removed under the lock, then the multicast > context is torn down which includes waiting for any outstanding context > timers. Since all of the vlan processing depends on BR_VLFLAG_MCAST_ENABLED > it must be checked first if the contexts are vlan and the multicast_lock > has been acquired. That is done by all IGMP/MLD packet processing > functions and timers. When processing a packet we have RCU so the vlan > memory won't be freed, but if the flag is missing we must not process it. > The timers are synchronized in the same way with the addition of waiting > for them to finish in case they are running after removing the flag > under multicast_lock (i.e. they were waiting for the lock). Multicast vlan > snooping requires vlan filtering to be enabled, if it's disabled then > snooping gets automatically disabled, too. BR_VLFLAG_GLOBAL_MCAST_ENABLED > controls if a vlan has BR_VLFLAG_MCAST_ENABLED set which is used in all > vlan disabled checks. We need both flags because one is controlled by > user-space globally (BR_VLFLAG_GLOBAL_MCAST_ENABLED) and the other is > for a particular bridge/vlan or port/vlan entry (BR_VLFLAG_MCAST_ENABLED). > Since the latter is also used for synchronization between the multicast > and vlan code, and also controlled by BR_VLFLAG_GLOBAL_MCAST_ENABLED we > rely on it when checking if a vlan context is disabled. The multicast > fast-path has 3 new bit tests on the cache-hot bridge flags field, I > didn't observe any measurable difference. I haven't forced either > context options to be always disabled when the other type is enabled > because the state consists of timers which either expire (router) or > don't affect the normal operation. Some options, like the mcast querier > one, won't be allowed to change for the disabled context type, that will > come with a future patch-set which adds per-vlan querier control. > > [...]Here is the summary with links: - [net-next,01/15] net: bridge: multicast: factor out port multicast context https://git.kernel.org/netdev/net-next/c/9632233e7de8 - [net-next,02/15] net: bridge: multicast: factor out bridge multicast context https://git.kernel.org/netdev/net-next/c/d3d065c0032b - [net-next,03/15] net: bridge: multicast: use multicast contexts instead of bridge or port https://git.kernel.org/netdev/net-next/c/adc47037a7d5 - [net-next,04/15] net: bridge: vlan: add global and per-port multicast context https://git.kernel.org/netdev/net-next/c/613d61dbef8e - [net-next,05/15] net: bridge: multicast: add vlan state initialization and control https://git.kernel.org/netdev/net-next/c/7b54aaaf53cb - [net-next,06/15] net: bridge: add vlan mcast snooping knob https://git.kernel.org/netdev/net-next/c/f4b7002a7076 - [net-next,07/15] net: bridge: multicast: add helper to get port mcast context from port group https://git.kernel.org/netdev/net-next/c/74edfd483de8 - [net-next,08/15] net: bridge: multicast: use the port group to port context helper https://git.kernel.org/netdev/net-next/c/eb1593a0b4c4 - [net-next,09/15] net: bridge: multicast: check if should use vlan mcast ctx https://git.kernel.org/netdev/net-next/c/4cdd0d10f31d - [net-next,10/15] net: bridge: multicast: add vlan querier and query support https://git.kernel.org/netdev/net-next/c/615cc23e6283 - [net-next,11/15] net: bridge: multicast: include router port vlan id in notifications https://git.kernel.org/netdev/net-next/c/1e9ca45662d6 - [net-next,12/15] net: bridge: vlan: add support for global options https://git.kernel.org/netdev/net-next/c/47ecd2dbd8ec - [net-next,13/15] net: bridge: vlan: add support for dumping global vlan options https://git.kernel.org/netdev/net-next/c/743a53d9636a - [net-next,14/15] net: bridge: vlan: notify when global options change https://git.kernel.org/netdev/net-next/c/9aba624d7cb2 - [net-next,15/15] net: bridge: vlan: add mcast snooping control https://git.kernel.org/netdev/net-next/c/9dee572c3848 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
Joachim Wiberg
2021-Aug-19 16:01 UTC
[Bridge] [PATCH net-next 00/15] net: bridge: multicast: add vlan support
Hi Hik, everyone! On Mon, Jul 19, 2021 at 20:06, Nikolay Aleksandrov <razor at blackwall.org> wrote:> From: Nikolay Aleksandrov <nikolay at nvidia.com> > This patchset adds initial per-vlan multicast support, most of the code > deals with moving to multicast context pointers from bridge/port pointers.Awesome work, this looks very interesting! :) I've already built and tested net-next for regressions on Marvell SOHO switches, looking good so far. Curious, are you planning querier per-vlan, including use-ifaddr support as well? In our in-house hack, which I posted a few years ago, we added some "dumpster diving" to inet_select_addr(), but it got rather tricky. So I've been leaning towards having that in userspace instead.> Future patch-sets which build on this one (in order): > - iproute2 support for all the new uAPIsI'm very eager to try out all the new IGMP per-VLAN stuff, do you have any branch of the iproute2 support available yet for testing? For now I've hard-coded BROPT_MCAST_VLAN_SNOOPING_ENABLED in br_multicast_init() as a workaround, and everything seems to work just as expected :-) Best regards /Joachim