Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 00/11] vxlan: Add MDB support
tl;dr
====
This patchset implements MDB support in the VXLAN driver, allowing it to
selectively forward IP multicast traffic to VTEPs with interested
receivers instead of flooding it to all the VTEPs as BUM. The motivating
use case is intra and inter subnet multicast forwarding using EVPN
[1][2], which means that MDB entries are only installed by the user
space control plane and no snooping is implemented, thereby avoiding a
lot of unnecessary complexity in the kernel.
Background
=========
Both the bridge and VXLAN drivers have an FDB that allows them to
forward Ethernet frames based on their destination MAC addresses and
VLAN/VNI. These FDBs are managed using the same PF_BRIDGE/RTM_*NEIGH
netlink messages and bridge(8) utility.
However, only the bridge driver has an MDB that allows it to selectively
forward IP multicast packets to bridge ports with interested receivers
behind them, based on (S, G) and (*, G) MDB entries. When these packets
reach the VXLAN driver they are flooded using the "all-zeros" FDB
entry
(00:00:00:00:00:00). The entry either includes the list of all the VTEPs
in the tenant domain (when ingress replication is used) or the multicast
address of the BUM tunnel (when P2MP tunnels are used), to which all the
VTEPs join.
Networks that make heavy use of multicast in the overlay can benefit
from a solution that allows them to selectively forward IP multicast
traffic only to VTEPs with interested receivers. Such a solution is
described in the next section.
Motivation
=========
RFC 7432 [3] defines a "MAC/IP Advertisement route" (type 2) [4] that
allows VTEPs in the EVPN network to advertise and learn reachability
information for unicast MAC addresses. Traffic destined to a unicast MAC
address can therefore be selectively forwarded to a single VTEP behind
which the MAC is located.
The same is not true for IP multicast traffic. Such traffic is simply
flooded as BUM to all VTEPs in the broadcast domain (BD) / subnet,
regardless if a VTEP has interested receivers for the multicast stream
or not. This is especially problematic for overlay networks that make
heavy use of multicast.
The issue is addressed by RFC 9251 [1] that defines a "Selective
Multicast Ethernet Tag Route" (type 6) [5] which allows VTEPs in the
EVPN network to advertise multicast streams that they are interested in.
This is done by having each VTEP suppress IGMP/MLD packets from being
transmitted to the NVE network and instead communicate the information
over BGP to other VTEPs.
The draft in [2] further extends RFC 9251 with procedures to allow
efficient forwarding of IP multicast traffic not only in a given subnet,
but also between different subnets in a tenant domain.
The required changes in the bridge driver to support the above were
already merged in merge commit 8150f0cfb24f ("Merge branch
'bridge-mcast-extensions-for-evpn'"). However, full support entails
MDB
support in the VXLAN driver so that it will be able to selectively
forward IP multicast traffic only to VTEPs with interested receivers.
The implementation of this MDB is described in the next section.
Implementation
=============
The user interface is extended to allow user space to specify the
destination VTEP(s) and related parameters. Example usage:
# bridge mdb add dev vxlan0 port vxlan0 grp 239.1.1.1 permanent dst
198.51.100.1
# bridge mdb add dev vxlan0 port vxlan0 grp 239.1.1.1 permanent dst 192.0.2.1
$ bridge -d -s mdb show
dev vxlan0 port vxlan0 grp 239.1.1.1 permanent filter_mode exclude proto static
dst 192.0.2.1 0.00
dev vxlan0 port vxlan0 grp 239.1.1.1 permanent filter_mode exclude proto static
dst 198.51.100.1 0.00
Since the MDB is fully managed by user space and since snooping is not
implemented, only permanent entries can be installed and temporary
entries are rejected by the kernel.
The netlink interface is extended with a few new attributes in the
RTM_NEWMDB / RTM_DELMDB request messages:
[ struct nlmsghdr ]
[ struct br_port_msg ]
[ MDBA_SET_ENTRY ]
struct br_mdb_entry
[ MDBA_SET_ENTRY_ATTRS ]
[ MDBE_ATTR_SOURCE ]
struct in_addr / struct in6_addr
[ MDBE_ATTR_SRC_LIST ]
[ MDBE_SRC_LIST_ENTRY ]
[ MDBE_SRCATTR_ADDRESS ]
struct in_addr / struct in6_addr
[ ...]
[ MDBE_ATTR_GROUP_MODE ]
u8
[ MDBE_ATTR_RTPORT ]
u8
[ MDBE_ATTR_DST ] // new
struct in_addr / struct in6_addr
[ MDBE_ATTR_DST_PORT ] // new
u16
[ MDBE_ATTR_VNI ] // new
u32
[ MDBE_ATTR_IFINDEX ] // new
s32
[ MDBE_ATTR_SRC_VNI ] // new
u32
RTM_NEWMDB / RTM_DELMDB responses and notifications are extended with
corresponding attributes.
One MDB entry that can be installed in the VXLAN MDB, but not in the
bridge MDB is the catchall entry (0.0.0.0 / ::). It is used to transmit
unregistered multicast traffic that is not link-local and is especially
useful when inter-subnet multicast forwarding is required. See patch #12
for a detailed explanation and motivation. It is similar to the
"all-zeros" FDB entry that can be installed in the VXLAN FDB, but not
the bridge FDB.
"added_by_star_ex" entries
--------------------------
The bridge driver automatically installs (S, G) MDB port group entries
marked as "added_by_star_ex" whenever it detects that an (S, G) entry
can prevent traffic from being forwarded via a port associated with an
EXCLUDE (*, G) entry. The bridge will add the port to the port group of
the (S, G) entry, thereby creating a new port group entry. The
complexity associated with these entries is not trivial, but it needs to
reside in the bridge driver because it automatically installs MDB
entries in response to snooped IGMP / MLD packets.
The same in not true for the VXLAN MDB which is entirely managed by user
space who is fully capable of forming the correct replication lists on
its own. In addition, the complexity associated with the
"added_by_star_ex" entries in the VXLAN driver is higher compared to
the
bridge: Whenever a remote VTEP is added to the catchall entry, it needs
to be added to all the existing MDB entries, as such a remote requested
all the multicast traffic to be forwarded to it. Similarly, whenever an
(*, G) or (S, G) entry is added, all the remotes associated with the
catchall entry need to be added to it.
Given the above, this patchset does not implement support for such
entries. One argument against this decision can be that in the future
someone might want to populate the VXLAN MDB in response to decapsulated
IGMP / MLD packets and not according to EVPN routes. Regardless of my
doubts regarding this possibility, it can be implemented using a new
VXLAN device knob that will also enable the "added_by_star_ex"
functionality.
Testing
======
Tested using existing VXLAN and MDB selftests under "net/" and
"net/forwarding/". Added a dedicated selftest in the last patch.
Patchset overview
================
Patches #1-#3 are small preparations in the bridge driver. I plan to
submit them separately together with an MDB dump test case.
Patches #4-#6 are additional preparations centered around the extraction
of the MDB netlink handlers from the bridge driver to the common
rtnetlink code. This allows reusing the existing MDB netlink messages
for the configuration of the VXLAN MDB.
Patches #7-#9 include more small preparations in the common rtnetlink
code and the VXLAN driver.
Patch #10 implements the MDB control path in the VXLAN driver, which
will allow user space to create, delete, replace and dump MDB entries.
Patches #11-#12 implement the MDB data path in the VXLAN driver,
allowing it to selectively forward IP multicast traffic according to the
matched MDB entry.
Patch #13 finally enables MDB support in the VXLAN driver.
iproute2 patches can be found here [6].
Note that in order to fully support the specifications in [1] and [2],
additional functionality is required from the data path. However, it can
be achieved using existing kernel interfaces which is why it is not
described here.
Changelog
========
Since v1 [7]:
Patch #9: Use htons() in 'case' instead of ntohs() in 'switch'.
Since RFC [8]:
Patch #3: Use NL_ASSERT_DUMP_CTX_FITS().
Patch #3: memset the entire context when moving to the next device.
Patch #3: Reset sequence counters when moving to the next device.
Patch #3: Use NL_SET_ERR_MSG_ATTR() in rtnl_validate_mdb_entry().
Patch #7: Remove restrictions regarding mixing of multicast and unicast
remote destination IPs in an MDB entry. While such configuration does
not make sense to me, it is no forbidden by the VXLAN FDB code and does
not crash the kernel.
Patch #7: Fix check regarding all-zeros MDB entry and source.
Patch #11: New patch.
[1] https://datatracker.ietf.org/doc/html/rfc9251
[2] https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-irb-mcast
[3] https://datatracker.ietf.org/doc/html/rfc7432
[4] https://datatracker.ietf.org/doc/html/rfc7432#section-7.2
[5] https://datatracker.ietf.org/doc/html/rfc9251#section-9.1
[6] https://github.com/idosch/iproute2/commits/submit/mdb_vxlan_rfc_v1
[7] https://lore.kernel.org/netdev/20230313145349.3557231-1-idosch at
nvidia.com/
[8] https://lore.kernel.org/netdev/20230204170801.3897900-1-idosch at
nvidia.com/
Ido Schimmel (11):
net: Add MDB net device operations
bridge: mcast: Implement MDB net device operations
rtnetlink: bridge: mcast: Move MDB handlers out of bridge driver
rtnetlink: bridge: mcast: Relax group address validation in common
code
vxlan: Move address helpers to private headers
vxlan: Expose vxlan_xmit_one()
vxlan: mdb: Add MDB control path support
vxlan: mdb: Add an internal flag to indicate MDB usage
vxlan: Add MDB data path support
vxlan: Enable MDB support
selftests: net: Add VXLAN MDB test
drivers/net/vxlan/Makefile | 2 +-
drivers/net/vxlan/vxlan_core.c | 78 +-
drivers/net/vxlan/vxlan_mdb.c | 1462 +++++++++++
drivers/net/vxlan/vxlan_private.h | 84 +
include/linux/netdevice.h | 21 +
include/net/vxlan.h | 6 +
include/uapi/linux/if_bridge.h | 10 +
net/bridge/br_device.c | 3 +
net/bridge/br_mdb.c | 219 +-
net/bridge/br_netlink.c | 3 -
net/bridge/br_private.h | 22 +-
net/core/rtnetlink.c | 218 ++
tools/testing/selftests/net/Makefile | 1 +
tools/testing/selftests/net/config | 1 +
tools/testing/selftests/net/test_vxlan_mdb.sh | 2318 +++++++++++++++++
15 files changed, 4207 insertions(+), 241 deletions(-)
create mode 100644 drivers/net/vxlan/vxlan_mdb.c
create mode 100755 tools/testing/selftests/net/test_vxlan_mdb.sh
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 01/11] net: Add MDB net device operations
Add MDB net device operations that will be invoked by rtnetlink code in
response to received RTM_{NEW,DEL,GET}MDB messages. Subsequent patches
will implement these operations in the bridge and VXLAN drivers.
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
include/linux/netdevice.h | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ee483071cf59..23b0d7eaaadd 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1307,6 +1307,17 @@ struct netdev_net_notifier {
* Used to add FDB entries to dump requests. Implementers should add
* entries to skb and update idx with the number of entries.
*
+ * int (*ndo_mdb_add)(struct net_device *dev, struct nlattr *tb[],
+ * u16 nlmsg_flags, struct netlink_ext_ack *extack);
+ * Adds an MDB entry to dev.
+ * int (*ndo_mdb_del)(struct net_device *dev, struct nlattr *tb[],
+ * struct netlink_ext_ack *extack);
+ * Deletes the MDB entry from dev.
+ * int (*ndo_mdb_dump)(struct net_device *dev, struct sk_buff *skb,
+ * struct netlink_callback *cb);
+ * Dumps MDB entries from dev. The first argument (marker) in the netlink
+ * callback is used by core rtnetlink code.
+ *
* int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh,
* u16 flags, struct netlink_ext_ack *extack)
* int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq,
@@ -1569,6 +1580,16 @@ struct net_device_ops {
const unsigned char *addr,
u16 vid, u32 portid, u32 seq,
struct netlink_ext_ack *extack);
+ int (*ndo_mdb_add)(struct net_device *dev,
+ struct nlattr *tb[],
+ u16 nlmsg_flags,
+ struct netlink_ext_ack *extack);
+ int (*ndo_mdb_del)(struct net_device *dev,
+ struct nlattr *tb[],
+ struct netlink_ext_ack *extack);
+ int (*ndo_mdb_dump)(struct net_device *dev,
+ struct sk_buff *skb,
+ struct netlink_callback *cb);
int (*ndo_bridge_setlink)(struct net_device *dev,
struct nlmsghdr *nlh,
u16 flags,
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 02/11] bridge: mcast: Implement MDB net device operations
Implement the previously added MDB net device operations in the bridge
driver so that they could be invoked by core rtnetlink code in the next
patch.
The operations are identical to the existing br_mdb_{dump,add,del}
functions. The '_new' suffix will be removed in the next patch. The
functions are re-implemented in this patch to make the conversion in the
next patch easier to review.
Add dummy implementations when 'CONFIG_BRIDGE_IGMP_SNOOPING' is
disabled, so that an error will be returned to user space when it is
trying to add or delete an MDB entry. This is consistent with existing
behavior where the bridge driver does not even register rtnetlink
handlers for RTM_{NEW,DEL,GET}MDB messages when this Kconfig option is
disabled.
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
net/bridge/br_device.c | 3 +
net/bridge/br_mdb.c | 124 ++++++++++++++++++++++++++++++++++++++++
net/bridge/br_private.h | 25 ++++++++
3 files changed, 152 insertions(+)
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index b82906fc999a..85fa4d73bb53 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -468,6 +468,9 @@ static const struct net_device_ops br_netdev_ops = {
.ndo_fdb_del_bulk = br_fdb_delete_bulk,
.ndo_fdb_dump = br_fdb_dump,
.ndo_fdb_get = br_fdb_get,
+ .ndo_mdb_add = br_mdb_add_new,
+ .ndo_mdb_del = br_mdb_del_new,
+ .ndo_mdb_dump = br_mdb_dump_new,
.ndo_bridge_getlink = br_getlink,
.ndo_bridge_setlink = br_setlink,
.ndo_bridge_dellink = br_dellink,
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 25c48d81a597..cb8270a5480b 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -458,6 +458,39 @@ static int br_mdb_dump(struct sk_buff *skb, struct
netlink_callback *cb)
return skb->len;
}
+int br_mdb_dump_new(struct net_device *dev, struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ struct net_bridge *br = netdev_priv(dev);
+ struct br_port_msg *bpm;
+ struct nlmsghdr *nlh;
+ int err;
+
+ nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, RTM_GETMDB, sizeof(*bpm),
+ NLM_F_MULTI);
+ if (!nlh)
+ return -EMSGSIZE;
+
+ bpm = nlmsg_data(nlh);
+ memset(bpm, 0, sizeof(*bpm));
+ bpm->ifindex = dev->ifindex;
+
+ rcu_read_lock();
+
+ err = br_mdb_fill_info(skb, cb, dev);
+ if (err)
+ goto out;
+ err = br_rports_fill_info(skb, &br->multicast_ctx);
+ if (err)
+ goto out;
+
+out:
+ rcu_read_unlock();
+ nlmsg_end(skb, nlh);
+ return err;
+}
+
static int nlmsg_populate_mdb_fill(struct sk_buff *skb,
struct net_device *dev,
struct net_bridge_mdb_entry *mp,
@@ -1459,6 +1492,65 @@ static int br_mdb_add(struct sk_buff *skb, struct
nlmsghdr *nlh,
return err;
}
+int br_mdb_add_new(struct net_device *dev, struct nlattr *tb[], u16
nlmsg_flags,
+ struct netlink_ext_ack *extack)
+{
+ struct net_bridge_vlan_group *vg;
+ struct br_mdb_config cfg = {};
+ struct net_bridge_vlan *v;
+ int err;
+
+ /* Configuration structure will be initialized here. */
+
+ err = -EINVAL;
+ /* host join errors which can happen before creating the group */
+ if (!cfg.p && !br_group_is_l2(&cfg.group)) {
+ /* don't allow any flags for host-joined IP groups */
+ if (cfg.entry->state) {
+ NL_SET_ERR_MSG_MOD(extack, "Flags are not allowed for host
groups");
+ goto out;
+ }
+ if (!br_multicast_is_star_g(&cfg.group)) {
+ NL_SET_ERR_MSG_MOD(extack, "Groups with sources cannot be manually host
joined");
+ goto out;
+ }
+ }
+
+ if (br_group_is_l2(&cfg.group) && cfg.entry->state !=
MDB_PERMANENT) {
+ NL_SET_ERR_MSG_MOD(extack, "Only permanent L2 entries allowed");
+ goto out;
+ }
+
+ if (cfg.p) {
+ if (cfg.p->state == BR_STATE_DISABLED && cfg.entry->state !=
MDB_PERMANENT) {
+ NL_SET_ERR_MSG_MOD(extack, "Port is in disabled state and entry is not
permanent");
+ goto out;
+ }
+ vg = nbp_vlan_group(cfg.p);
+ } else {
+ vg = br_vlan_group(cfg.br);
+ }
+
+ /* If vlan filtering is enabled and VLAN is not specified
+ * install mdb entry on all vlans configured on the port.
+ */
+ if (br_vlan_enabled(cfg.br->dev) && vg && cfg.entry->vid
== 0) {
+ list_for_each_entry(v, &vg->vlan_list, vlist) {
+ cfg.entry->vid = v->vid;
+ cfg.group.vid = v->vid;
+ err = __br_mdb_add(&cfg, extack);
+ if (err)
+ break;
+ }
+ } else {
+ err = __br_mdb_add(&cfg, extack);
+ }
+
+out:
+ br_mdb_config_fini(&cfg);
+ return err;
+}
+
static int __br_mdb_del(const struct br_mdb_config *cfg)
{
struct br_mdb_entry *entry = cfg->entry;
@@ -1535,6 +1627,38 @@ static int br_mdb_del(struct sk_buff *skb, struct
nlmsghdr *nlh,
return err;
}
+int br_mdb_del_new(struct net_device *dev, struct nlattr *tb[],
+ struct netlink_ext_ack *extack)
+{
+ struct net_bridge_vlan_group *vg;
+ struct br_mdb_config cfg = {};
+ struct net_bridge_vlan *v;
+ int err = 0;
+
+ /* Configuration structure will be initialized here. */
+
+ if (cfg.p)
+ vg = nbp_vlan_group(cfg.p);
+ else
+ vg = br_vlan_group(cfg.br);
+
+ /* If vlan filtering is enabled and VLAN is not specified
+ * delete mdb entry on all vlans configured on the port.
+ */
+ if (br_vlan_enabled(cfg.br->dev) && vg && cfg.entry->vid
== 0) {
+ list_for_each_entry(v, &vg->vlan_list, vlist) {
+ cfg.entry->vid = v->vid;
+ cfg.group.vid = v->vid;
+ err = __br_mdb_del(&cfg);
+ }
+ } else {
+ err = __br_mdb_del(&cfg);
+ }
+
+ br_mdb_config_fini(&cfg);
+ return err;
+}
+
void br_mdb_init(void)
{
rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_GETMDB, NULL, br_mdb_dump,
0);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index cef5f6ea850c..a72847c1dc9f 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -981,6 +981,12 @@ void br_multicast_get_stats(const struct net_bridge *br,
u32 br_multicast_ngroups_get(const struct net_bridge_mcast_port *pmctx);
void br_multicast_ngroups_set_max(struct net_bridge_mcast_port *pmctx, u32
max);
u32 br_multicast_ngroups_get_max(const struct net_bridge_mcast_port *pmctx);
+int br_mdb_add_new(struct net_device *dev, struct nlattr *tb[], u16
nlmsg_flags,
+ struct netlink_ext_ack *extack);
+int br_mdb_del_new(struct net_device *dev, struct nlattr *tb[],
+ struct netlink_ext_ack *extack);
+int br_mdb_dump_new(struct net_device *dev, struct sk_buff *skb,
+ struct netlink_callback *cb);
void br_mdb_init(void);
void br_mdb_uninit(void);
void br_multicast_host_join(const struct net_bridge_mcast *brmctx,
@@ -1374,6 +1380,25 @@ static inline bool br_multicast_querier_exists(struct
net_bridge_mcast *brmctx,
return false;
}
+static inline int br_mdb_add_new(struct net_device *dev, struct nlattr *tb[],
+ u16 nlmsg_flags,
+ struct netlink_ext_ack *extack)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int br_mdb_del_new(struct net_device *dev, struct nlattr *tb[],
+ struct netlink_ext_ack *extack)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int br_mdb_dump_new(struct net_device *dev, struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return 0;
+}
+
static inline void br_mdb_init(void)
{
}
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 03/11] rtnetlink: bridge: mcast: Move MDB handlers out of bridge driver
Currently, the bridge driver registers handlers for MDB netlink
messages, making it impossible for other drivers to implement MDB
support.
As a preparation for VXLAN MDB support, move the MDB handlers out of the
bridge driver to the core rtnetlink code. The rtnetlink code will call
into individual drivers by invoking their previously added MDB net
device operations.
Note that while the diffstat is large, the change is mechanical. It
moves code out of the bridge driver to rtnetlink code. Also note that a
similar change was made in 2012 with commit 77162022ab26 ("net: add
generic PF_BRIDGE:RTM_ FDB hooks") that moved FDB handlers out of the
bridge driver to the core rtnetlink code.
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
Notes:
v1:
* Use NL_ASSERT_DUMP_CTX_FITS().
* memset the entire context when moving to the next device.
* Reset sequence counters when moving to the next device.
* Use NL_SET_ERR_MSG_ATTR() in rtnl_validate_mdb_entry().
net/bridge/br_device.c | 6 +-
net/bridge/br_mdb.c | 301 ++--------------------------------------
net/bridge/br_netlink.c | 3 -
net/bridge/br_private.h | 35 ++---
net/core/rtnetlink.c | 217 +++++++++++++++++++++++++++++
5 files changed, 244 insertions(+), 318 deletions(-)
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 85fa4d73bb53..df47c876230e 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -468,9 +468,9 @@ static const struct net_device_ops br_netdev_ops = {
.ndo_fdb_del_bulk = br_fdb_delete_bulk,
.ndo_fdb_dump = br_fdb_dump,
.ndo_fdb_get = br_fdb_get,
- .ndo_mdb_add = br_mdb_add_new,
- .ndo_mdb_del = br_mdb_del_new,
- .ndo_mdb_dump = br_mdb_dump_new,
+ .ndo_mdb_add = br_mdb_add,
+ .ndo_mdb_del = br_mdb_del,
+ .ndo_mdb_dump = br_mdb_dump,
.ndo_bridge_getlink = br_getlink,
.ndo_bridge_setlink = br_setlink,
.ndo_bridge_dellink = br_dellink,
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index cb8270a5480b..76636c61db21 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -380,86 +380,8 @@ static int br_mdb_fill_info(struct sk_buff *skb, struct
netlink_callback *cb,
return err;
}
-static int br_mdb_valid_dump_req(const struct nlmsghdr *nlh,
- struct netlink_ext_ack *extack)
-{
- struct br_port_msg *bpm;
-
- if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*bpm))) {
- NL_SET_ERR_MSG_MOD(extack, "Invalid header for mdb dump request");
- return -EINVAL;
- }
-
- bpm = nlmsg_data(nlh);
- if (bpm->ifindex) {
- NL_SET_ERR_MSG_MOD(extack, "Filtering by device index is not supported
for mdb dump request");
- return -EINVAL;
- }
- if (nlmsg_attrlen(nlh, sizeof(*bpm))) {
- NL_SET_ERR_MSG(extack, "Invalid data after header in mdb dump
request");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int br_mdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
-{
- struct net_device *dev;
- struct net *net = sock_net(skb->sk);
- struct nlmsghdr *nlh = NULL;
- int idx = 0, s_idx;
-
- if (cb->strict_check) {
- int err = br_mdb_valid_dump_req(cb->nlh, cb->extack);
-
- if (err < 0)
- return err;
- }
-
- s_idx = cb->args[0];
-
- rcu_read_lock();
-
- for_each_netdev_rcu(net, dev) {
- if (netif_is_bridge_master(dev)) {
- struct net_bridge *br = netdev_priv(dev);
- struct br_port_msg *bpm;
-
- if (idx < s_idx)
- goto skip;
-
- nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq, RTM_GETMDB,
- sizeof(*bpm), NLM_F_MULTI);
- if (nlh == NULL)
- break;
-
- bpm = nlmsg_data(nlh);
- memset(bpm, 0, sizeof(*bpm));
- bpm->ifindex = dev->ifindex;
- if (br_mdb_fill_info(skb, cb, dev) < 0)
- goto out;
- if (br_rports_fill_info(skb, &br->multicast_ctx) < 0)
- goto out;
-
- cb->args[1] = 0;
- nlmsg_end(skb, nlh);
- skip:
- idx++;
- }
- }
-
-out:
- if (nlh)
- nlmsg_end(skb, nlh);
- rcu_read_unlock();
- cb->args[0] = idx;
- return skb->len;
-}
-
-int br_mdb_dump_new(struct net_device *dev, struct sk_buff *skb,
- struct netlink_callback *cb)
+int br_mdb_dump(struct net_device *dev, struct sk_buff *skb,
+ struct netlink_callback *cb)
{
struct net_bridge *br = netdev_priv(dev);
struct br_port_msg *bpm;
@@ -716,60 +638,6 @@ static const struct nla_policy
br_mdbe_attrs_pol[MDBE_ATTR_MAX + 1] = {
[MDBE_ATTR_RTPROT] = NLA_POLICY_MIN(NLA_U8, RTPROT_STATIC),
};
-static int validate_mdb_entry(const struct nlattr *attr,
- struct netlink_ext_ack *extack)
-{
- struct br_mdb_entry *entry = nla_data(attr);
-
- if (nla_len(attr) != sizeof(struct br_mdb_entry)) {
- NL_SET_ERR_MSG_MOD(extack, "Invalid MDBA_SET_ENTRY attribute
length");
- return -EINVAL;
- }
-
- if (entry->ifindex == 0) {
- NL_SET_ERR_MSG_MOD(extack, "Zero entry ifindex is not allowed");
- return -EINVAL;
- }
-
- if (entry->addr.proto == htons(ETH_P_IP)) {
- if (!ipv4_is_multicast(entry->addr.u.ip4)) {
- NL_SET_ERR_MSG_MOD(extack, "IPv4 entry group address is not
multicast");
- return -EINVAL;
- }
- if (ipv4_is_local_multicast(entry->addr.u.ip4)) {
- NL_SET_ERR_MSG_MOD(extack, "IPv4 entry group address is local
multicast");
- return -EINVAL;
- }
-#if IS_ENABLED(CONFIG_IPV6)
- } else if (entry->addr.proto == htons(ETH_P_IPV6)) {
- if (ipv6_addr_is_ll_all_nodes(&entry->addr.u.ip6)) {
- NL_SET_ERR_MSG_MOD(extack, "IPv6 entry group address is link-local all
nodes");
- return -EINVAL;
- }
-#endif
- } else if (entry->addr.proto == 0) {
- /* L2 mdb */
- if (!is_multicast_ether_addr(entry->addr.u.mac_addr)) {
- NL_SET_ERR_MSG_MOD(extack, "L2 entry group is not multicast");
- return -EINVAL;
- }
- } else {
- NL_SET_ERR_MSG_MOD(extack, "Unknown entry protocol");
- return -EINVAL;
- }
-
- if (entry->state != MDB_PERMANENT && entry->state !=
MDB_TEMPORARY) {
- NL_SET_ERR_MSG_MOD(extack, "Unknown entry state");
- return -EINVAL;
- }
- if (entry->vid >= VLAN_VID_MASK) {
- NL_SET_ERR_MSG_MOD(extack, "Invalid entry VLAN id");
- return -EINVAL;
- }
-
- return 0;
-}
-
static bool is_valid_mdb_source(struct nlattr *attr, __be16 proto,
struct netlink_ext_ack *extack)
{
@@ -1332,49 +1200,16 @@ static int br_mdb_config_attrs_init(struct nlattr
*set_attrs,
return 0;
}
-static const struct nla_policy mdba_policy[MDBA_SET_ENTRY_MAX + 1] = {
- [MDBA_SET_ENTRY_UNSPEC] = { .strict_start_type = MDBA_SET_ENTRY_ATTRS + 1 },
- [MDBA_SET_ENTRY] = NLA_POLICY_VALIDATE_FN(NLA_BINARY,
- validate_mdb_entry,
- sizeof(struct br_mdb_entry)),
- [MDBA_SET_ENTRY_ATTRS] = { .type = NLA_NESTED },
-};
-
-static int br_mdb_config_init(struct net *net, const struct nlmsghdr *nlh,
- struct br_mdb_config *cfg,
+static int br_mdb_config_init(struct br_mdb_config *cfg, struct net_device
*dev,
+ struct nlattr *tb[], u16 nlmsg_flags,
struct netlink_ext_ack *extack)
{
- struct nlattr *tb[MDBA_SET_ENTRY_MAX + 1];
- struct br_port_msg *bpm;
- struct net_device *dev;
- int err;
-
- err = nlmsg_parse_deprecated(nlh, sizeof(*bpm), tb,
- MDBA_SET_ENTRY_MAX, mdba_policy, extack);
- if (err)
- return err;
+ struct net *net = dev_net(dev);
memset(cfg, 0, sizeof(*cfg));
cfg->filter_mode = MCAST_EXCLUDE;
cfg->rt_protocol = RTPROT_STATIC;
- cfg->nlflags = nlh->nlmsg_flags;
-
- bpm = nlmsg_data(nlh);
- if (!bpm->ifindex) {
- NL_SET_ERR_MSG_MOD(extack, "Invalid bridge ifindex");
- return -EINVAL;
- }
-
- dev = __dev_get_by_index(net, bpm->ifindex);
- if (!dev) {
- NL_SET_ERR_MSG_MOD(extack, "Bridge device doesn't exist");
- return -ENODEV;
- }
-
- if (!netif_is_bridge_master(dev)) {
- NL_SET_ERR_MSG_MOD(extack, "Device is not a bridge");
- return -EOPNOTSUPP;
- }
+ cfg->nlflags = nlmsg_flags;
cfg->br = netdev_priv(dev);
@@ -1388,11 +1223,6 @@ static int br_mdb_config_init(struct net *net, const
struct nlmsghdr *nlh,
return -EINVAL;
}
- if (NL_REQ_ATTR_CHECK(extack, NULL, tb, MDBA_SET_ENTRY)) {
- NL_SET_ERR_MSG_MOD(extack, "Missing MDBA_SET_ENTRY attribute");
- return -EINVAL;
- }
-
cfg->entry = nla_data(tb[MDBA_SET_ENTRY]);
if (cfg->entry->ifindex != cfg->br->dev->ifindex) {
@@ -1430,16 +1260,15 @@ static void br_mdb_config_fini(struct br_mdb_config
*cfg)
br_mdb_config_src_list_fini(cfg);
}
-static int br_mdb_add(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct netlink_ext_ack *extack)
+int br_mdb_add(struct net_device *dev, struct nlattr *tb[], u16 nlmsg_flags,
+ struct netlink_ext_ack *extack)
{
- struct net *net = sock_net(skb->sk);
struct net_bridge_vlan_group *vg;
struct net_bridge_vlan *v;
struct br_mdb_config cfg;
int err;
- err = br_mdb_config_init(net, nlh, &cfg, extack);
+ err = br_mdb_config_init(&cfg, dev, tb, nlmsg_flags, extack);
if (err)
return err;
@@ -1492,65 +1321,6 @@ static int br_mdb_add(struct sk_buff *skb, struct
nlmsghdr *nlh,
return err;
}
-int br_mdb_add_new(struct net_device *dev, struct nlattr *tb[], u16
nlmsg_flags,
- struct netlink_ext_ack *extack)
-{
- struct net_bridge_vlan_group *vg;
- struct br_mdb_config cfg = {};
- struct net_bridge_vlan *v;
- int err;
-
- /* Configuration structure will be initialized here. */
-
- err = -EINVAL;
- /* host join errors which can happen before creating the group */
- if (!cfg.p && !br_group_is_l2(&cfg.group)) {
- /* don't allow any flags for host-joined IP groups */
- if (cfg.entry->state) {
- NL_SET_ERR_MSG_MOD(extack, "Flags are not allowed for host
groups");
- goto out;
- }
- if (!br_multicast_is_star_g(&cfg.group)) {
- NL_SET_ERR_MSG_MOD(extack, "Groups with sources cannot be manually host
joined");
- goto out;
- }
- }
-
- if (br_group_is_l2(&cfg.group) && cfg.entry->state !=
MDB_PERMANENT) {
- NL_SET_ERR_MSG_MOD(extack, "Only permanent L2 entries allowed");
- goto out;
- }
-
- if (cfg.p) {
- if (cfg.p->state == BR_STATE_DISABLED && cfg.entry->state !=
MDB_PERMANENT) {
- NL_SET_ERR_MSG_MOD(extack, "Port is in disabled state and entry is not
permanent");
- goto out;
- }
- vg = nbp_vlan_group(cfg.p);
- } else {
- vg = br_vlan_group(cfg.br);
- }
-
- /* If vlan filtering is enabled and VLAN is not specified
- * install mdb entry on all vlans configured on the port.
- */
- if (br_vlan_enabled(cfg.br->dev) && vg && cfg.entry->vid
== 0) {
- list_for_each_entry(v, &vg->vlan_list, vlist) {
- cfg.entry->vid = v->vid;
- cfg.group.vid = v->vid;
- err = __br_mdb_add(&cfg, extack);
- if (err)
- break;
- }
- } else {
- err = __br_mdb_add(&cfg, extack);
- }
-
-out:
- br_mdb_config_fini(&cfg);
- return err;
-}
-
static int __br_mdb_del(const struct br_mdb_config *cfg)
{
struct br_mdb_entry *entry = cfg->entry;
@@ -1592,16 +1362,15 @@ static int __br_mdb_del(const struct br_mdb_config *cfg)
return err;
}
-static int br_mdb_del(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct netlink_ext_ack *extack)
+int br_mdb_del(struct net_device *dev, struct nlattr *tb[],
+ struct netlink_ext_ack *extack)
{
- struct net *net = sock_net(skb->sk);
struct net_bridge_vlan_group *vg;
struct net_bridge_vlan *v;
struct br_mdb_config cfg;
int err;
- err = br_mdb_config_init(net, nlh, &cfg, extack);
+ err = br_mdb_config_init(&cfg, dev, tb, 0, extack);
if (err)
return err;
@@ -1626,49 +1395,3 @@ static int br_mdb_del(struct sk_buff *skb, struct
nlmsghdr *nlh,
br_mdb_config_fini(&cfg);
return err;
}
-
-int br_mdb_del_new(struct net_device *dev, struct nlattr *tb[],
- struct netlink_ext_ack *extack)
-{
- struct net_bridge_vlan_group *vg;
- struct br_mdb_config cfg = {};
- struct net_bridge_vlan *v;
- int err = 0;
-
- /* Configuration structure will be initialized here. */
-
- if (cfg.p)
- vg = nbp_vlan_group(cfg.p);
- else
- vg = br_vlan_group(cfg.br);
-
- /* If vlan filtering is enabled and VLAN is not specified
- * delete mdb entry on all vlans configured on the port.
- */
- if (br_vlan_enabled(cfg.br->dev) && vg && cfg.entry->vid
== 0) {
- list_for_each_entry(v, &vg->vlan_list, vlist) {
- cfg.entry->vid = v->vid;
- cfg.group.vid = v->vid;
- err = __br_mdb_del(&cfg);
- }
- } else {
- err = __br_mdb_del(&cfg);
- }
-
- br_mdb_config_fini(&cfg);
- return err;
-}
-
-void br_mdb_init(void)
-{
- rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_GETMDB, NULL, br_mdb_dump,
0);
- rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_NEWMDB, br_mdb_add, NULL, 0);
- rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_DELMDB, br_mdb_del, NULL, 0);
-}
-
-void br_mdb_uninit(void)
-{
- rtnl_unregister(PF_BRIDGE, RTM_GETMDB);
- rtnl_unregister(PF_BRIDGE, RTM_NEWMDB);
- rtnl_unregister(PF_BRIDGE, RTM_DELMDB);
-}
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 9173e52b89e2..fefb1c0e248b 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1886,7 +1886,6 @@ int __init br_netlink_init(void)
{
int err;
- br_mdb_init();
br_vlan_rtnl_init();
rtnl_af_register(&br_af_ops);
@@ -1898,13 +1897,11 @@ int __init br_netlink_init(void)
out_af:
rtnl_af_unregister(&br_af_ops);
- br_mdb_uninit();
return err;
}
void br_netlink_fini(void)
{
- br_mdb_uninit();
br_vlan_rtnl_uninit();
rtnl_af_unregister(&br_af_ops);
rtnl_link_unregister(&br_link_ops);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index a72847c1dc9f..7264fd40f82f 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -981,14 +981,12 @@ void br_multicast_get_stats(const struct net_bridge *br,
u32 br_multicast_ngroups_get(const struct net_bridge_mcast_port *pmctx);
void br_multicast_ngroups_set_max(struct net_bridge_mcast_port *pmctx, u32
max);
u32 br_multicast_ngroups_get_max(const struct net_bridge_mcast_port *pmctx);
-int br_mdb_add_new(struct net_device *dev, struct nlattr *tb[], u16
nlmsg_flags,
- struct netlink_ext_ack *extack);
-int br_mdb_del_new(struct net_device *dev, struct nlattr *tb[],
- struct netlink_ext_ack *extack);
-int br_mdb_dump_new(struct net_device *dev, struct sk_buff *skb,
- struct netlink_callback *cb);
-void br_mdb_init(void);
-void br_mdb_uninit(void);
+int br_mdb_add(struct net_device *dev, struct nlattr *tb[], u16 nlmsg_flags,
+ struct netlink_ext_ack *extack);
+int br_mdb_del(struct net_device *dev, struct nlattr *tb[],
+ struct netlink_ext_ack *extack);
+int br_mdb_dump(struct net_device *dev, struct sk_buff *skb,
+ struct netlink_callback *cb);
void br_multicast_host_join(const struct net_bridge_mcast *brmctx,
struct net_bridge_mdb_entry *mp, bool notify);
void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify);
@@ -1380,33 +1378,24 @@ static inline bool br_multicast_querier_exists(struct
net_bridge_mcast *brmctx,
return false;
}
-static inline int br_mdb_add_new(struct net_device *dev, struct nlattr *tb[],
- u16 nlmsg_flags,
- struct netlink_ext_ack *extack)
+static inline int br_mdb_add(struct net_device *dev, struct nlattr *tb[],
+ u16 nlmsg_flags, struct netlink_ext_ack *extack)
{
return -EOPNOTSUPP;
}
-static inline int br_mdb_del_new(struct net_device *dev, struct nlattr *tb[],
- struct netlink_ext_ack *extack)
+static inline int br_mdb_del(struct net_device *dev, struct nlattr *tb[],
+ struct netlink_ext_ack *extack)
{
return -EOPNOTSUPP;
}
-static inline int br_mdb_dump_new(struct net_device *dev, struct sk_buff *skb,
- struct netlink_callback *cb)
+static inline int br_mdb_dump(struct net_device *dev, struct sk_buff *skb,
+ struct netlink_callback *cb)
{
return 0;
}
-static inline void br_mdb_init(void)
-{
-}
-
-static inline void br_mdb_uninit(void)
-{
-}
-
static inline int br_mdb_hash_init(struct net_bridge *br)
{
return 0;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 5d8eb57867a9..f347d9fa78c7 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -54,6 +54,9 @@
#include <net/rtnetlink.h>
#include <net/net_namespace.h>
#include <net/devlink.h>
+#if IS_ENABLED(CONFIG_IPV6)
+#include <net/addrconf.h>
+#endif
#include "dev.h"
@@ -6063,6 +6066,216 @@ static int rtnl_stats_set(struct sk_buff *skb, struct
nlmsghdr *nlh,
return 0;
}
+static int rtnl_mdb_valid_dump_req(const struct nlmsghdr *nlh,
+ struct netlink_ext_ack *extack)
+{
+ struct br_port_msg *bpm;
+
+ if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*bpm))) {
+ NL_SET_ERR_MSG(extack, "Invalid header for mdb dump request");
+ return -EINVAL;
+ }
+
+ bpm = nlmsg_data(nlh);
+ if (bpm->ifindex) {
+ NL_SET_ERR_MSG(extack, "Filtering by device index is not supported for
mdb dump request");
+ return -EINVAL;
+ }
+ if (nlmsg_attrlen(nlh, sizeof(*bpm))) {
+ NL_SET_ERR_MSG(extack, "Invalid data after header in mdb dump
request");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+struct rtnl_mdb_dump_ctx {
+ long idx;
+};
+
+static int rtnl_mdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct rtnl_mdb_dump_ctx *ctx = (void *)cb->ctx;
+ struct net *net = sock_net(skb->sk);
+ struct net_device *dev;
+ int idx, s_idx;
+ int err;
+
+ NL_ASSERT_DUMP_CTX_FITS(struct rtnl_mdb_dump_ctx);
+
+ if (cb->strict_check) {
+ err = rtnl_mdb_valid_dump_req(cb->nlh, cb->extack);
+ if (err)
+ return err;
+ }
+
+ s_idx = ctx->idx;
+ idx = 0;
+
+ for_each_netdev(net, dev) {
+ if (idx < s_idx)
+ goto skip;
+ if (!dev->netdev_ops->ndo_mdb_dump)
+ goto skip;
+
+ err = dev->netdev_ops->ndo_mdb_dump(dev, skb, cb);
+ if (err == -EMSGSIZE)
+ goto out;
+ /* Moving on to next device, reset markers and sequence
+ * counters since they are all maintained per-device.
+ */
+ memset(cb->ctx, 0, sizeof(cb->ctx));
+ cb->prev_seq = 0;
+ cb->seq = 0;
+skip:
+ idx++;
+ }
+
+out:
+ ctx->idx = idx;
+ return skb->len;
+}
+
+static int rtnl_validate_mdb_entry(const struct nlattr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct br_mdb_entry *entry = nla_data(attr);
+
+ if (nla_len(attr) != sizeof(struct br_mdb_entry)) {
+ NL_SET_ERR_MSG_ATTR(extack, attr, "Invalid attribute length");
+ return -EINVAL;
+ }
+
+ if (entry->ifindex == 0) {
+ NL_SET_ERR_MSG(extack, "Zero entry ifindex is not allowed");
+ return -EINVAL;
+ }
+
+ if (entry->addr.proto == htons(ETH_P_IP)) {
+ if (!ipv4_is_multicast(entry->addr.u.ip4)) {
+ NL_SET_ERR_MSG(extack, "IPv4 entry group address is not
multicast");
+ return -EINVAL;
+ }
+ if (ipv4_is_local_multicast(entry->addr.u.ip4)) {
+ NL_SET_ERR_MSG(extack, "IPv4 entry group address is local
multicast");
+ return -EINVAL;
+ }
+#if IS_ENABLED(CONFIG_IPV6)
+ } else if (entry->addr.proto == htons(ETH_P_IPV6)) {
+ if (ipv6_addr_is_ll_all_nodes(&entry->addr.u.ip6)) {
+ NL_SET_ERR_MSG(extack, "IPv6 entry group address is link-local all
nodes");
+ return -EINVAL;
+ }
+#endif
+ } else if (entry->addr.proto == 0) {
+ /* L2 mdb */
+ if (!is_multicast_ether_addr(entry->addr.u.mac_addr)) {
+ NL_SET_ERR_MSG(extack, "L2 entry group is not multicast");
+ return -EINVAL;
+ }
+ } else {
+ NL_SET_ERR_MSG(extack, "Unknown entry protocol");
+ return -EINVAL;
+ }
+
+ if (entry->state != MDB_PERMANENT && entry->state !=
MDB_TEMPORARY) {
+ NL_SET_ERR_MSG(extack, "Unknown entry state");
+ return -EINVAL;
+ }
+ if (entry->vid >= VLAN_VID_MASK) {
+ NL_SET_ERR_MSG(extack, "Invalid entry VLAN id");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct nla_policy mdba_policy[MDBA_SET_ENTRY_MAX + 1] = {
+ [MDBA_SET_ENTRY_UNSPEC] = { .strict_start_type = MDBA_SET_ENTRY_ATTRS + 1 },
+ [MDBA_SET_ENTRY] = NLA_POLICY_VALIDATE_FN(NLA_BINARY,
+ rtnl_validate_mdb_entry,
+ sizeof(struct br_mdb_entry)),
+ [MDBA_SET_ENTRY_ATTRS] = { .type = NLA_NESTED },
+};
+
+static int rtnl_mdb_add(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[MDBA_SET_ENTRY_MAX + 1];
+ struct net *net = sock_net(skb->sk);
+ struct br_port_msg *bpm;
+ struct net_device *dev;
+ int err;
+
+ err = nlmsg_parse_deprecated(nlh, sizeof(*bpm), tb,
+ MDBA_SET_ENTRY_MAX, mdba_policy, extack);
+ if (err)
+ return err;
+
+ bpm = nlmsg_data(nlh);
+ if (!bpm->ifindex) {
+ NL_SET_ERR_MSG(extack, "Invalid ifindex");
+ return -EINVAL;
+ }
+
+ dev = __dev_get_by_index(net, bpm->ifindex);
+ if (!dev) {
+ NL_SET_ERR_MSG(extack, "Device doesn't exist");
+ return -ENODEV;
+ }
+
+ if (NL_REQ_ATTR_CHECK(extack, NULL, tb, MDBA_SET_ENTRY)) {
+ NL_SET_ERR_MSG(extack, "Missing MDBA_SET_ENTRY attribute");
+ return -EINVAL;
+ }
+
+ if (!dev->netdev_ops->ndo_mdb_add) {
+ NL_SET_ERR_MSG(extack, "Device does not support MDB operations");
+ return -EOPNOTSUPP;
+ }
+
+ return dev->netdev_ops->ndo_mdb_add(dev, tb, nlh->nlmsg_flags,
extack);
+}
+
+static int rtnl_mdb_del(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[MDBA_SET_ENTRY_MAX + 1];
+ struct net *net = sock_net(skb->sk);
+ struct br_port_msg *bpm;
+ struct net_device *dev;
+ int err;
+
+ err = nlmsg_parse_deprecated(nlh, sizeof(*bpm), tb,
+ MDBA_SET_ENTRY_MAX, mdba_policy, extack);
+ if (err)
+ return err;
+
+ bpm = nlmsg_data(nlh);
+ if (!bpm->ifindex) {
+ NL_SET_ERR_MSG(extack, "Invalid ifindex");
+ return -EINVAL;
+ }
+
+ dev = __dev_get_by_index(net, bpm->ifindex);
+ if (!dev) {
+ NL_SET_ERR_MSG(extack, "Device doesn't exist");
+ return -ENODEV;
+ }
+
+ if (NL_REQ_ATTR_CHECK(extack, NULL, tb, MDBA_SET_ENTRY)) {
+ NL_SET_ERR_MSG(extack, "Missing MDBA_SET_ENTRY attribute");
+ return -EINVAL;
+ }
+
+ if (!dev->netdev_ops->ndo_mdb_del) {
+ NL_SET_ERR_MSG(extack, "Device does not support MDB operations");
+ return -EOPNOTSUPP;
+ }
+
+ return dev->netdev_ops->ndo_mdb_del(dev, tb, extack);
+}
+
/* Process one rtnetlink message. */
static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
@@ -6297,4 +6510,8 @@ void __init rtnetlink_init(void)
rtnl_register(PF_UNSPEC, RTM_GETSTATS, rtnl_stats_get, rtnl_stats_dump,
0);
rtnl_register(PF_UNSPEC, RTM_SETSTATS, rtnl_stats_set, NULL, 0);
+
+ rtnl_register(PF_BRIDGE, RTM_GETMDB, NULL, rtnl_mdb_dump, 0);
+ rtnl_register(PF_BRIDGE, RTM_NEWMDB, rtnl_mdb_add, NULL, 0);
+ rtnl_register(PF_BRIDGE, RTM_DELMDB, rtnl_mdb_del, NULL, 0);
}
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 04/11] rtnetlink: bridge: mcast: Relax group address validation in common code
In the upcoming VXLAN MDB implementation, the 0.0.0.0 and :: MDB entries
will act as catchall entries for unregistered IP multicast traffic in a
similar fashion to the 00:00:00:00:00:00 VXLAN FDB entry that is used to
transmit BUM traffic.
In deployments where inter-subnet multicast forwarding is used, not all
the VTEPs in a tenant domain are members in all the broadcast domains.
It is therefore advantageous to transmit BULL (broadcast, unknown
unicast and link-local multicast) and unregistered IP multicast traffic
on different tunnels. If the same tunnel was used, a VTEP only
interested in IP multicast traffic would also pull all the BULL traffic
and drop it as it is not a member in the originating broadcast domain
[1].
Prepare for this change by allowing the 0.0.0.0 group address in the
common rtnetlink MDB code and forbid it in the bridge driver. A similar
change is not needed for IPv6 because the common code only validates
that the group address is not the all-nodes address.
[1]
https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-irb-mcast#section-2.6
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
net/bridge/br_mdb.c | 6 ++++++
net/core/rtnetlink.c | 5 +++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 76636c61db21..7305f5f8215c 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -1246,6 +1246,12 @@ static int br_mdb_config_init(struct br_mdb_config *cfg,
struct net_device *dev,
}
}
+ if (cfg->entry->addr.proto == htons(ETH_P_IP) &&
+ ipv4_is_zeronet(cfg->entry->addr.u.ip4)) {
+ NL_SET_ERR_MSG_MOD(extack, "IPv4 entry group address 0.0.0.0 is not
allowed");
+ return -EINVAL;
+ }
+
if (tb[MDBA_SET_ENTRY_ATTRS])
return br_mdb_config_attrs_init(tb[MDBA_SET_ENTRY_ATTRS], cfg,
extack);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index f347d9fa78c7..b7b1661d0d56 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -6152,8 +6152,9 @@ static int rtnl_validate_mdb_entry(const struct nlattr
*attr,
}
if (entry->addr.proto == htons(ETH_P_IP)) {
- if (!ipv4_is_multicast(entry->addr.u.ip4)) {
- NL_SET_ERR_MSG(extack, "IPv4 entry group address is not
multicast");
+ if (!ipv4_is_multicast(entry->addr.u.ip4) &&
+ !ipv4_is_zeronet(entry->addr.u.ip4)) {
+ NL_SET_ERR_MSG(extack, "IPv4 entry group address is not multicast or
0.0.0.0");
return -EINVAL;
}
if (ipv4_is_local_multicast(entry->addr.u.ip4)) {
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 05/11] vxlan: Move address helpers to private headers
Move the helpers out of the core C file to the private header so that
they could be used by the upcoming MDB code.
While at it, constify the second argument of vxlan_nla_get_addr().
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
drivers/net/vxlan/vxlan_core.c | 47 -------------------------------
drivers/net/vxlan/vxlan_private.h | 45 +++++++++++++++++++++++++++++
2 files changed, 45 insertions(+), 47 deletions(-)
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index f2c30214cae8..2c65cc5dd55d 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -71,53 +71,6 @@ static inline bool vxlan_collect_metadata(struct vxlan_sock
*vs)
ip_tunnel_collect_metadata();
}
-#if IS_ENABLED(CONFIG_IPV6)
-static int vxlan_nla_get_addr(union vxlan_addr *ip, struct nlattr *nla)
-{
- if (nla_len(nla) >= sizeof(struct in6_addr)) {
- ip->sin6.sin6_addr = nla_get_in6_addr(nla);
- ip->sa.sa_family = AF_INET6;
- return 0;
- } else if (nla_len(nla) >= sizeof(__be32)) {
- ip->sin.sin_addr.s_addr = nla_get_in_addr(nla);
- ip->sa.sa_family = AF_INET;
- return 0;
- } else {
- return -EAFNOSUPPORT;
- }
-}
-
-static int vxlan_nla_put_addr(struct sk_buff *skb, int attr,
- const union vxlan_addr *ip)
-{
- if (ip->sa.sa_family == AF_INET6)
- return nla_put_in6_addr(skb, attr, &ip->sin6.sin6_addr);
- else
- return nla_put_in_addr(skb, attr, ip->sin.sin_addr.s_addr);
-}
-
-#else /* !CONFIG_IPV6 */
-
-static int vxlan_nla_get_addr(union vxlan_addr *ip, struct nlattr *nla)
-{
- if (nla_len(nla) >= sizeof(struct in6_addr)) {
- return -EAFNOSUPPORT;
- } else if (nla_len(nla) >= sizeof(__be32)) {
- ip->sin.sin_addr.s_addr = nla_get_in_addr(nla);
- ip->sa.sa_family = AF_INET;
- return 0;
- } else {
- return -EAFNOSUPPORT;
- }
-}
-
-static int vxlan_nla_put_addr(struct sk_buff *skb, int attr,
- const union vxlan_addr *ip)
-{
- return nla_put_in_addr(skb, attr, ip->sin.sin_addr.s_addr);
-}
-#endif
-
/* Find VXLAN socket based on network namespace, address family, UDP port,
* enabled unshareable flags and socket device binding (see l3mdev with
* non-default VRF).
diff --git a/drivers/net/vxlan/vxlan_private.h
b/drivers/net/vxlan/vxlan_private.h
index 599c3b4fdd5e..038528f9684a 100644
--- a/drivers/net/vxlan/vxlan_private.h
+++ b/drivers/net/vxlan/vxlan_private.h
@@ -85,6 +85,31 @@ bool vxlan_addr_equal(const union vxlan_addr *a, const union
vxlan_addr *b)
return a->sin.sin_addr.s_addr == b->sin.sin_addr.s_addr;
}
+static inline int vxlan_nla_get_addr(union vxlan_addr *ip,
+ const struct nlattr *nla)
+{
+ if (nla_len(nla) >= sizeof(struct in6_addr)) {
+ ip->sin6.sin6_addr = nla_get_in6_addr(nla);
+ ip->sa.sa_family = AF_INET6;
+ return 0;
+ } else if (nla_len(nla) >= sizeof(__be32)) {
+ ip->sin.sin_addr.s_addr = nla_get_in_addr(nla);
+ ip->sa.sa_family = AF_INET;
+ return 0;
+ } else {
+ return -EAFNOSUPPORT;
+ }
+}
+
+static inline int vxlan_nla_put_addr(struct sk_buff *skb, int attr,
+ const union vxlan_addr *ip)
+{
+ if (ip->sa.sa_family == AF_INET6)
+ return nla_put_in6_addr(skb, attr, &ip->sin6.sin6_addr);
+ else
+ return nla_put_in_addr(skb, attr, ip->sin.sin_addr.s_addr);
+}
+
#else /* !CONFIG_IPV6 */
static inline
@@ -93,6 +118,26 @@ bool vxlan_addr_equal(const union vxlan_addr *a, const union
vxlan_addr *b)
return a->sin.sin_addr.s_addr == b->sin.sin_addr.s_addr;
}
+static inline int vxlan_nla_get_addr(union vxlan_addr *ip,
+ const struct nlattr *nla)
+{
+ if (nla_len(nla) >= sizeof(struct in6_addr)) {
+ return -EAFNOSUPPORT;
+ } else if (nla_len(nla) >= sizeof(__be32)) {
+ ip->sin.sin_addr.s_addr = nla_get_in_addr(nla);
+ ip->sa.sa_family = AF_INET;
+ return 0;
+ } else {
+ return -EAFNOSUPPORT;
+ }
+}
+
+static inline int vxlan_nla_put_addr(struct sk_buff *skb, int attr,
+ const union vxlan_addr *ip)
+{
+ return nla_put_in_addr(skb, attr, ip->sin.sin_addr.s_addr);
+}
+
#endif
static inline struct vxlan_vni_node *
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 06/11] vxlan: Expose vxlan_xmit_one()
Given a packet and a remote destination, the function will take care of
encapsulating the packet and transmitting it to the destination.
Expose it so that it could be used in subsequent patches by the MDB code
to transmit a packet to the remote destination(s) stored in the MDB
entry.
It will allow us to keep the MDB code self-contained, not exposing its
data structures to the rest of the VXLAN driver.
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
drivers/net/vxlan/vxlan_core.c | 5 ++---
drivers/net/vxlan/vxlan_private.h | 2 ++
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index 2c65cc5dd55d..5de1a20497a6 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -2395,9 +2395,8 @@ static int encap_bypass_if_local(struct sk_buff *skb,
struct net_device *dev,
return 0;
}
-static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
- __be32 default_vni, struct vxlan_rdst *rdst,
- bool did_rsc)
+void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
+ __be32 default_vni, struct vxlan_rdst *rdst, bool did_rsc)
{
struct dst_cache *dst_cache;
struct ip_tunnel_info *info;
diff --git a/drivers/net/vxlan/vxlan_private.h
b/drivers/net/vxlan/vxlan_private.h
index 038528f9684a..f4977925cb8a 100644
--- a/drivers/net/vxlan/vxlan_private.h
+++ b/drivers/net/vxlan/vxlan_private.h
@@ -172,6 +172,8 @@ int vxlan_fdb_update(struct vxlan_dev *vxlan,
__be16 port, __be32 src_vni, __be32 vni,
__u32 ifindex, __u16 ndm_flags, u32 nhid,
bool swdev_notify, struct netlink_ext_ack *extack);
+void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
+ __be32 default_vni, struct vxlan_rdst *rdst, bool did_rsc);
int vxlan_vni_in_use(struct net *src_net, struct vxlan_dev *vxlan,
struct vxlan_config *conf, __be32 vni);
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 07/11] vxlan: mdb: Add MDB control path support
Implement MDB control path support, enabling the creation, deletion,
replacement and dumping of MDB entries in a similar fashion to the
bridge driver. Unlike the bridge driver, each entry stores a list of
remote VTEPs to which matched packets need to be replicated to and not a
list of bridge ports.
The motivating use case is the installation of MDB entries by a user
space control plane in response to received EVPN routes. As such, only
allow permanent MDB entries to be installed and do not implement
snooping functionality, avoiding a lot of unnecessary complexity.
Since entries can only be modified by user space under RTNL, use RTNL as
the write lock. Use RCU to ensure that MDB entries and remotes are not
freed while being accessed from the data path during transmission.
In terms of uAPI, reuse the existing MDB netlink interface, but add a
few new attributes to request and response messages:
* IP address of the destination VXLAN tunnel endpoint where the
multicast receivers reside.
* UDP destination port number to use to connect to the remote VXLAN
tunnel endpoint.
* VXLAN VNI Network Identifier to use to connect to the remote VXLAN
tunnel endpoint. Required when Ingress Replication (IR) is used and
the remote VTEP is not a member of originating broadcast domain
(VLAN/VNI) [1].
* Source VNI Network Identifier the MDB entry belongs to. Used only when
the VXLAN device is in external mode.
* Interface index of the outgoing interface to reach the remote VXLAN
tunnel endpoint. This is required when the underlay destination IP is
multicast (P2MP), as the multicast routing tables are not consulted.
All the new attributes are added under the 'MDBA_SET_ENTRY_ATTRS' nest
which is strictly validated by the bridge driver, thereby automatically
rejecting the new attributes.
[1]
https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-irb-mcast#section-3.2.2
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
Notes:
v1:
* Remove restrictions regarding mixing of multicast and unicast remote
destination IPs in an MDB entry. While such configuration does not
make sense to me, it is no forbidden by the VXLAN FDB code and does
not crash the kernel.
* Fix check regarding all-zeros MDB entry and source.
drivers/net/vxlan/Makefile | 2 +-
drivers/net/vxlan/vxlan_core.c | 8 +
drivers/net/vxlan/vxlan_mdb.c | 1341 +++++++++++++++++++++++++++++
drivers/net/vxlan/vxlan_private.h | 31 +
include/net/vxlan.h | 5 +
include/uapi/linux/if_bridge.h | 10 +
6 files changed, 1396 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/vxlan/vxlan_mdb.c
diff --git a/drivers/net/vxlan/Makefile b/drivers/net/vxlan/Makefile
index d4c255499b72..91b8fec8b6cf 100644
--- a/drivers/net/vxlan/Makefile
+++ b/drivers/net/vxlan/Makefile
@@ -4,4 +4,4 @@
obj-$(CONFIG_VXLAN) += vxlan.o
-vxlan-objs := vxlan_core.o vxlan_multicast.o vxlan_vnifilter.o
+vxlan-objs := vxlan_core.o vxlan_multicast.o vxlan_vnifilter.o vxlan_mdb.o
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index 5de1a20497a6..a8b26d4f76de 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -2878,8 +2878,14 @@ static int vxlan_init(struct net_device *dev)
if (err)
goto err_free_percpu;
+ err = vxlan_mdb_init(vxlan);
+ if (err)
+ goto err_gro_cells_destroy;
+
return 0;
+err_gro_cells_destroy:
+ gro_cells_destroy(&vxlan->gro_cells);
err_free_percpu:
free_percpu(dev->tstats);
err_vnigroup_uninit:
@@ -2904,6 +2910,8 @@ static void vxlan_uninit(struct net_device *dev)
{
struct vxlan_dev *vxlan = netdev_priv(dev);
+ vxlan_mdb_fini(vxlan);
+
if (vxlan->cfg.flags & VXLAN_F_VNIFILTER)
vxlan_vnigroup_uninit(vxlan);
diff --git a/drivers/net/vxlan/vxlan_mdb.c b/drivers/net/vxlan/vxlan_mdb.c
new file mode 100644
index 000000000000..129692b3663f
--- /dev/null
+++ b/drivers/net/vxlan/vxlan_mdb.c
@@ -0,0 +1,1341 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/if_bridge.h>
+#include <linux/in.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/netlink.h>
+#include <linux/rhashtable.h>
+#include <linux/rhashtable-types.h>
+#include <linux/rtnetlink.h>
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include <net/netlink.h>
+#include <net/vxlan.h>
+
+#include "vxlan_private.h"
+
+struct vxlan_mdb_entry_key {
+ union vxlan_addr src;
+ union vxlan_addr dst;
+ __be32 vni;
+};
+
+struct vxlan_mdb_entry {
+ struct rhash_head rhnode;
+ struct list_head remotes;
+ struct vxlan_mdb_entry_key key;
+ struct hlist_node mdb_node;
+ struct rcu_head rcu;
+};
+
+#define VXLAN_MDB_REMOTE_F_BLOCKED BIT(0)
+
+struct vxlan_mdb_remote {
+ struct list_head list;
+ struct vxlan_rdst __rcu *rd;
+ u8 flags;
+ u8 filter_mode;
+ u8 rt_protocol;
+ struct hlist_head src_list;
+ struct rcu_head rcu;
+};
+
+#define VXLAN_SGRP_F_DELETE BIT(0)
+
+struct vxlan_mdb_src_entry {
+ struct hlist_node node;
+ union vxlan_addr addr;
+ u8 flags;
+};
+
+struct vxlan_mdb_dump_ctx {
+ long reserved;
+ long entry_idx;
+ long remote_idx;
+};
+
+struct vxlan_mdb_config_src_entry {
+ union vxlan_addr addr;
+ struct list_head node;
+};
+
+struct vxlan_mdb_config {
+ struct vxlan_dev *vxlan;
+ struct vxlan_mdb_entry_key group;
+ struct list_head src_list;
+ union vxlan_addr remote_ip;
+ u32 remote_ifindex;
+ __be32 remote_vni;
+ __be16 remote_port;
+ u16 nlflags;
+ u8 flags;
+ u8 filter_mode;
+ u8 rt_protocol;
+};
+
+static const struct rhashtable_params vxlan_mdb_rht_params = {
+ .head_offset = offsetof(struct vxlan_mdb_entry, rhnode),
+ .key_offset = offsetof(struct vxlan_mdb_entry, key),
+ .key_len = sizeof(struct vxlan_mdb_entry_key),
+ .automatic_shrinking = true,
+};
+
+static int __vxlan_mdb_add(const struct vxlan_mdb_config *cfg,
+ struct netlink_ext_ack *extack);
+static int __vxlan_mdb_del(const struct vxlan_mdb_config *cfg,
+ struct netlink_ext_ack *extack);
+
+static void vxlan_br_mdb_entry_fill(const struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry *mdb_entry,
+ const struct vxlan_mdb_remote *remote,
+ struct br_mdb_entry *e)
+{
+ const union vxlan_addr *dst = &mdb_entry->key.dst;
+
+ memset(e, 0, sizeof(*e));
+ e->ifindex = vxlan->dev->ifindex;
+ e->state = MDB_PERMANENT;
+
+ if (remote->flags & VXLAN_MDB_REMOTE_F_BLOCKED)
+ e->flags |= MDB_FLAGS_BLOCKED;
+
+ switch (dst->sa.sa_family) {
+ case AF_INET:
+ e->addr.u.ip4 = dst->sin.sin_addr.s_addr;
+ e->addr.proto = htons(ETH_P_IP);
+ break;
+#if IS_ENABLED(CONFIG_IPV6)
+ case AF_INET6:
+ e->addr.u.ip6 = dst->sin6.sin6_addr;
+ e->addr.proto = htons(ETH_P_IPV6);
+ break;
+#endif
+ }
+}
+
+static int vxlan_mdb_entry_info_fill_srcs(struct sk_buff *skb,
+ const struct vxlan_mdb_remote *remote)
+{
+ struct vxlan_mdb_src_entry *ent;
+ struct nlattr *nest;
+
+ if (hlist_empty(&remote->src_list))
+ return 0;
+
+ nest = nla_nest_start(skb, MDBA_MDB_EATTR_SRC_LIST);
+ if (!nest)
+ return -EMSGSIZE;
+
+ hlist_for_each_entry(ent, &remote->src_list, node) {
+ struct nlattr *nest_ent;
+
+ nest_ent = nla_nest_start(skb, MDBA_MDB_SRCLIST_ENTRY);
+ if (!nest_ent)
+ goto out_cancel_err;
+
+ if (vxlan_nla_put_addr(skb, MDBA_MDB_SRCATTR_ADDRESS,
+ &ent->addr) ||
+ nla_put_u32(skb, MDBA_MDB_SRCATTR_TIMER, 0))
+ goto out_cancel_err;
+
+ nla_nest_end(skb, nest_ent);
+ }
+
+ nla_nest_end(skb, nest);
+
+ return 0;
+
+out_cancel_err:
+ nla_nest_cancel(skb, nest);
+ return -EMSGSIZE;
+}
+
+static int vxlan_mdb_entry_info_fill(const struct vxlan_dev *vxlan,
+ struct sk_buff *skb,
+ const struct vxlan_mdb_entry *mdb_entry,
+ const struct vxlan_mdb_remote *remote)
+{
+ struct vxlan_rdst *rd = rtnl_dereference(remote->rd);
+ struct br_mdb_entry e;
+ struct nlattr *nest;
+
+ nest = nla_nest_start_noflag(skb, MDBA_MDB_ENTRY_INFO);
+ if (!nest)
+ return -EMSGSIZE;
+
+ vxlan_br_mdb_entry_fill(vxlan, mdb_entry, remote, &e);
+
+ if (nla_put_nohdr(skb, sizeof(e), &e) ||
+ nla_put_u32(skb, MDBA_MDB_EATTR_TIMER, 0))
+ goto nest_err;
+
+ if (!vxlan_addr_any(&mdb_entry->key.src) &&
+ vxlan_nla_put_addr(skb, MDBA_MDB_EATTR_SOURCE,
&mdb_entry->key.src))
+ goto nest_err;
+
+ if (nla_put_u8(skb, MDBA_MDB_EATTR_RTPROT, remote->rt_protocol) ||
+ nla_put_u8(skb, MDBA_MDB_EATTR_GROUP_MODE, remote->filter_mode) ||
+ vxlan_mdb_entry_info_fill_srcs(skb, remote) ||
+ vxlan_nla_put_addr(skb, MDBA_MDB_EATTR_DST, &rd->remote_ip))
+ goto nest_err;
+
+ if (rd->remote_port && rd->remote_port != vxlan->cfg.dst_port
&&
+ nla_put_u16(skb, MDBA_MDB_EATTR_DST_PORT,
+ be16_to_cpu(rd->remote_port)))
+ goto nest_err;
+
+ if (rd->remote_vni != vxlan->default_dst.remote_vni &&
+ nla_put_u32(skb, MDBA_MDB_EATTR_VNI, be32_to_cpu(rd->remote_vni)))
+ goto nest_err;
+
+ if (rd->remote_ifindex &&
+ nla_put_u32(skb, MDBA_MDB_EATTR_IFINDEX, rd->remote_ifindex))
+ goto nest_err;
+
+ if ((vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA) &&
+ mdb_entry->key.vni && nla_put_u32(skb, MDBA_MDB_EATTR_SRC_VNI,
+ be32_to_cpu(mdb_entry->key.vni)))
+ goto nest_err;
+
+ nla_nest_end(skb, nest);
+
+ return 0;
+
+nest_err:
+ nla_nest_cancel(skb, nest);
+ return -EMSGSIZE;
+}
+
+static int vxlan_mdb_entry_fill(const struct vxlan_dev *vxlan,
+ struct sk_buff *skb,
+ struct vxlan_mdb_dump_ctx *ctx,
+ const struct vxlan_mdb_entry *mdb_entry)
+{
+ int remote_idx = 0, s_remote_idx = ctx->remote_idx;
+ struct vxlan_mdb_remote *remote;
+ struct nlattr *nest;
+ int err = 0;
+
+ nest = nla_nest_start_noflag(skb, MDBA_MDB_ENTRY);
+ if (!nest)
+ return -EMSGSIZE;
+
+ list_for_each_entry(remote, &mdb_entry->remotes, list) {
+ if (remote_idx < s_remote_idx)
+ goto skip;
+
+ err = vxlan_mdb_entry_info_fill(vxlan, skb, mdb_entry, remote);
+ if (err)
+ break;
+skip:
+ remote_idx++;
+ }
+
+ ctx->remote_idx = err ? remote_idx : 0;
+ nla_nest_end(skb, nest);
+ return err;
+}
+
+static int vxlan_mdb_fill(const struct vxlan_dev *vxlan, struct sk_buff *skb,
+ struct vxlan_mdb_dump_ctx *ctx)
+{
+ int entry_idx = 0, s_entry_idx = ctx->entry_idx;
+ struct vxlan_mdb_entry *mdb_entry;
+ struct nlattr *nest;
+ int err = 0;
+
+ nest = nla_nest_start_noflag(skb, MDBA_MDB);
+ if (!nest)
+ return -EMSGSIZE;
+
+ hlist_for_each_entry(mdb_entry, &vxlan->mdb_list, mdb_node) {
+ if (entry_idx < s_entry_idx)
+ goto skip;
+
+ err = vxlan_mdb_entry_fill(vxlan, skb, ctx, mdb_entry);
+ if (err)
+ break;
+skip:
+ entry_idx++;
+ }
+
+ ctx->entry_idx = err ? entry_idx : 0;
+ nla_nest_end(skb, nest);
+ return err;
+}
+
+int vxlan_mdb_dump(struct net_device *dev, struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ struct vxlan_mdb_dump_ctx *ctx = (void *)cb->ctx;
+ struct vxlan_dev *vxlan = netdev_priv(dev);
+ struct br_port_msg *bpm;
+ struct nlmsghdr *nlh;
+ int err;
+
+ ASSERT_RTNL();
+
+ NL_ASSERT_DUMP_CTX_FITS(struct vxlan_mdb_dump_ctx);
+
+ nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, RTM_NEWMDB, sizeof(*bpm),
+ NLM_F_MULTI);
+ if (!nlh)
+ return -EMSGSIZE;
+
+ bpm = nlmsg_data(nlh);
+ memset(bpm, 0, sizeof(*bpm));
+ bpm->family = AF_BRIDGE;
+ bpm->ifindex = dev->ifindex;
+
+ err = vxlan_mdb_fill(vxlan, skb, ctx);
+
+ nlmsg_end(skb, nlh);
+
+ cb->seq = vxlan->mdb_seq;
+ nl_dump_check_consistent(cb, nlh);
+
+ return err;
+}
+
+static const struct nla_policy
+vxlan_mdbe_src_list_entry_pol[MDBE_SRCATTR_MAX + 1] = {
+ [MDBE_SRCATTR_ADDRESS] = NLA_POLICY_RANGE(NLA_BINARY,
+ sizeof(struct in_addr),
+ sizeof(struct in6_addr)),
+};
+
+static const struct nla_policy
+vxlan_mdbe_src_list_pol[MDBE_SRC_LIST_MAX + 1] = {
+ [MDBE_SRC_LIST_ENTRY] = NLA_POLICY_NESTED(vxlan_mdbe_src_list_entry_pol),
+};
+
+static struct netlink_range_validation vni_range = {
+ .max = VXLAN_N_VID - 1,
+};
+
+static const struct nla_policy vxlan_mdbe_attrs_pol[MDBE_ATTR_MAX + 1] = {
+ [MDBE_ATTR_SOURCE] = NLA_POLICY_RANGE(NLA_BINARY,
+ sizeof(struct in_addr),
+ sizeof(struct in6_addr)),
+ [MDBE_ATTR_GROUP_MODE] = NLA_POLICY_RANGE(NLA_U8, MCAST_EXCLUDE,
+ MCAST_INCLUDE),
+ [MDBE_ATTR_SRC_LIST] = NLA_POLICY_NESTED(vxlan_mdbe_src_list_pol),
+ [MDBE_ATTR_RTPROT] = NLA_POLICY_MIN(NLA_U8, RTPROT_STATIC),
+ [MDBE_ATTR_DST] = NLA_POLICY_RANGE(NLA_BINARY,
+ sizeof(struct in_addr),
+ sizeof(struct in6_addr)),
+ [MDBE_ATTR_DST_PORT] = { .type = NLA_U16 },
+ [MDBE_ATTR_VNI] = NLA_POLICY_FULL_RANGE(NLA_U32, &vni_range),
+ [MDBE_ATTR_IFINDEX] = NLA_POLICY_MIN(NLA_S32, 1),
+ [MDBE_ATTR_SRC_VNI] = NLA_POLICY_FULL_RANGE(NLA_U32, &vni_range),
+};
+
+static bool vxlan_mdb_is_valid_source(const struct nlattr *attr, __be16 proto,
+ struct netlink_ext_ack *extack)
+{
+ switch (proto) {
+ case htons(ETH_P_IP):
+ if (nla_len(attr) != sizeof(struct in_addr)) {
+ NL_SET_ERR_MSG_MOD(extack, "IPv4 invalid source address length");
+ return false;
+ }
+ if (ipv4_is_multicast(nla_get_in_addr(attr))) {
+ NL_SET_ERR_MSG_MOD(extack, "IPv4 multicast source address is not
allowed");
+ return false;
+ }
+ break;
+#if IS_ENABLED(CONFIG_IPV6)
+ case htons(ETH_P_IPV6): {
+ struct in6_addr src;
+
+ if (nla_len(attr) != sizeof(struct in6_addr)) {
+ NL_SET_ERR_MSG_MOD(extack, "IPv6 invalid source address length");
+ return false;
+ }
+ src = nla_get_in6_addr(attr);
+ if (ipv6_addr_is_multicast(&src)) {
+ NL_SET_ERR_MSG_MOD(extack, "IPv6 multicast source address is not
allowed");
+ return false;
+ }
+ break;
+ }
+#endif
+ default:
+ NL_SET_ERR_MSG_MOD(extack, "Invalid protocol used with source
address");
+ return false;
+ }
+
+ return true;
+}
+
+static void vxlan_mdb_config_group_set(struct vxlan_mdb_config *cfg,
+ const struct br_mdb_entry *entry,
+ const struct nlattr *source_attr)
+{
+ struct vxlan_mdb_entry_key *group = &cfg->group;
+
+ switch (entry->addr.proto) {
+ case htons(ETH_P_IP):
+ group->dst.sa.sa_family = AF_INET;
+ group->dst.sin.sin_addr.s_addr = entry->addr.u.ip4;
+ break;
+#if IS_ENABLED(CONFIG_IPV6)
+ case htons(ETH_P_IPV6):
+ group->dst.sa.sa_family = AF_INET6;
+ group->dst.sin6.sin6_addr = entry->addr.u.ip6;
+ break;
+#endif
+ }
+
+ if (source_attr)
+ vxlan_nla_get_addr(&group->src, source_attr);
+}
+
+static bool vxlan_mdb_is_star_g(const struct vxlan_mdb_entry_key *group)
+{
+ return !vxlan_addr_any(&group->dst) &&
vxlan_addr_any(&group->src);
+}
+
+static bool vxlan_mdb_is_sg(const struct vxlan_mdb_entry_key *group)
+{
+ return !vxlan_addr_any(&group->dst) &&
!vxlan_addr_any(&group->src);
+}
+
+static int vxlan_mdb_config_src_entry_init(struct vxlan_mdb_config *cfg,
+ __be16 proto,
+ const struct nlattr *src_entry,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[MDBE_SRCATTR_MAX + 1];
+ struct vxlan_mdb_config_src_entry *src;
+ int err;
+
+ err = nla_parse_nested(tb, MDBE_SRCATTR_MAX, src_entry,
+ vxlan_mdbe_src_list_entry_pol, extack);
+ if (err)
+ return err;
+
+ if (NL_REQ_ATTR_CHECK(extack, src_entry, tb, MDBE_SRCATTR_ADDRESS))
+ return -EINVAL;
+
+ if (!vxlan_mdb_is_valid_source(tb[MDBE_SRCATTR_ADDRESS], proto,
+ extack))
+ return -EINVAL;
+
+ src = kzalloc(sizeof(*src), GFP_KERNEL);
+ if (!src)
+ return -ENOMEM;
+
+ err = vxlan_nla_get_addr(&src->addr, tb[MDBE_SRCATTR_ADDRESS]);
+ if (err)
+ goto err_free_src;
+
+ list_add_tail(&src->node, &cfg->src_list);
+
+ return 0;
+
+err_free_src:
+ kfree(src);
+ return err;
+}
+
+static void
+vxlan_mdb_config_src_entry_fini(struct vxlan_mdb_config_src_entry *src)
+{
+ list_del(&src->node);
+ kfree(src);
+}
+
+static int vxlan_mdb_config_src_list_init(struct vxlan_mdb_config *cfg,
+ __be16 proto,
+ const struct nlattr *src_list,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_mdb_config_src_entry *src, *tmp;
+ struct nlattr *src_entry;
+ int rem, err;
+
+ nla_for_each_nested(src_entry, src_list, rem) {
+ err = vxlan_mdb_config_src_entry_init(cfg, proto, src_entry,
+ extack);
+ if (err)
+ goto err_src_entry_init;
+ }
+
+ return 0;
+
+err_src_entry_init:
+ list_for_each_entry_safe_reverse(src, tmp, &cfg->src_list, node)
+ vxlan_mdb_config_src_entry_fini(src);
+ return err;
+}
+
+static void vxlan_mdb_config_src_list_fini(struct vxlan_mdb_config *cfg)
+{
+ struct vxlan_mdb_config_src_entry *src, *tmp;
+
+ list_for_each_entry_safe_reverse(src, tmp, &cfg->src_list, node)
+ vxlan_mdb_config_src_entry_fini(src);
+}
+
+static int vxlan_mdb_config_attrs_init(struct vxlan_mdb_config *cfg,
+ const struct br_mdb_entry *entry,
+ const struct nlattr *set_attrs,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *mdbe_attrs[MDBE_ATTR_MAX + 1];
+ int err;
+
+ err = nla_parse_nested(mdbe_attrs, MDBE_ATTR_MAX, set_attrs,
+ vxlan_mdbe_attrs_pol, extack);
+ if (err)
+ return err;
+
+ if (NL_REQ_ATTR_CHECK(extack, set_attrs, mdbe_attrs, MDBE_ATTR_DST)) {
+ NL_SET_ERR_MSG_MOD(extack, "Missing remote destination IP
address");
+ return -EINVAL;
+ }
+
+ if (mdbe_attrs[MDBE_ATTR_SOURCE] &&
+ !vxlan_mdb_is_valid_source(mdbe_attrs[MDBE_ATTR_SOURCE],
+ entry->addr.proto, extack))
+ return -EINVAL;
+
+ vxlan_mdb_config_group_set(cfg, entry, mdbe_attrs[MDBE_ATTR_SOURCE]);
+
+ /* rtnetlink code only validates that IPv4 group address is
+ * multicast.
+ */
+ if (!vxlan_addr_is_multicast(&cfg->group.dst) &&
+ !vxlan_addr_any(&cfg->group.dst)) {
+ NL_SET_ERR_MSG_MOD(extack, "Group address is not multicast");
+ return -EINVAL;
+ }
+
+ if (vxlan_addr_any(&cfg->group.dst) &&
+ mdbe_attrs[MDBE_ATTR_SOURCE]) {
+ NL_SET_ERR_MSG_MOD(extack, "Source cannot be specified for the all-zeros
entry");
+ return -EINVAL;
+ }
+
+ if (vxlan_mdb_is_sg(&cfg->group))
+ cfg->filter_mode = MCAST_INCLUDE;
+
+ if (mdbe_attrs[MDBE_ATTR_GROUP_MODE]) {
+ if (!vxlan_mdb_is_star_g(&cfg->group)) {
+ NL_SET_ERR_MSG_MOD(extack, "Filter mode can only be set for (*, G)
entries");
+ return -EINVAL;
+ }
+ cfg->filter_mode = nla_get_u8(mdbe_attrs[MDBE_ATTR_GROUP_MODE]);
+ }
+
+ if (mdbe_attrs[MDBE_ATTR_SRC_LIST]) {
+ if (!vxlan_mdb_is_star_g(&cfg->group)) {
+ NL_SET_ERR_MSG_MOD(extack, "Source list can only be set for (*, G)
entries");
+ return -EINVAL;
+ }
+ if (!mdbe_attrs[MDBE_ATTR_GROUP_MODE]) {
+ NL_SET_ERR_MSG_MOD(extack, "Source list cannot be set without filter
mode");
+ return -EINVAL;
+ }
+ err = vxlan_mdb_config_src_list_init(cfg, entry->addr.proto,
+ mdbe_attrs[MDBE_ATTR_SRC_LIST],
+ extack);
+ if (err)
+ return err;
+ }
+
+ if (vxlan_mdb_is_star_g(&cfg->group) &&
list_empty(&cfg->src_list) &&
+ cfg->filter_mode == MCAST_INCLUDE) {
+ NL_SET_ERR_MSG_MOD(extack, "Cannot add (*, G) INCLUDE with an empty
source list");
+ return -EINVAL;
+ }
+
+ if (mdbe_attrs[MDBE_ATTR_RTPROT])
+ cfg->rt_protocol = nla_get_u8(mdbe_attrs[MDBE_ATTR_RTPROT]);
+
+ err = vxlan_nla_get_addr(&cfg->remote_ip, mdbe_attrs[MDBE_ATTR_DST]);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack, "Invalid remote destination address");
+ goto err_src_list_fini;
+ }
+
+ if (mdbe_attrs[MDBE_ATTR_DST_PORT])
+ cfg->remote_port +
cpu_to_be16(nla_get_u16(mdbe_attrs[MDBE_ATTR_DST_PORT]));
+
+ if (mdbe_attrs[MDBE_ATTR_VNI])
+ cfg->remote_vni + cpu_to_be32(nla_get_u32(mdbe_attrs[MDBE_ATTR_VNI]));
+
+ if (mdbe_attrs[MDBE_ATTR_IFINDEX]) {
+ cfg->remote_ifindex + nla_get_s32(mdbe_attrs[MDBE_ATTR_IFINDEX]);
+ if (!__dev_get_by_index(cfg->vxlan->net, cfg->remote_ifindex)) {
+ NL_SET_ERR_MSG_MOD(extack, "Outgoing interface not found");
+ err = -EINVAL;
+ goto err_src_list_fini;
+ }
+ }
+
+ if (mdbe_attrs[MDBE_ATTR_SRC_VNI])
+ cfg->group.vni +
cpu_to_be32(nla_get_u32(mdbe_attrs[MDBE_ATTR_SRC_VNI]));
+
+ return 0;
+
+err_src_list_fini:
+ vxlan_mdb_config_src_list_fini(cfg);
+ return err;
+}
+
+static int vxlan_mdb_config_init(struct vxlan_mdb_config *cfg,
+ struct net_device *dev, struct nlattr *tb[],
+ u16 nlmsg_flags,
+ struct netlink_ext_ack *extack)
+{
+ struct br_mdb_entry *entry = nla_data(tb[MDBA_SET_ENTRY]);
+ struct vxlan_dev *vxlan = netdev_priv(dev);
+
+ memset(cfg, 0, sizeof(*cfg));
+ cfg->vxlan = vxlan;
+ cfg->group.vni = vxlan->default_dst.remote_vni;
+ INIT_LIST_HEAD(&cfg->src_list);
+ cfg->nlflags = nlmsg_flags;
+ cfg->filter_mode = MCAST_EXCLUDE;
+ cfg->rt_protocol = RTPROT_STATIC;
+ cfg->remote_vni = vxlan->default_dst.remote_vni;
+ cfg->remote_port = vxlan->cfg.dst_port;
+
+ if (entry->ifindex != dev->ifindex) {
+ NL_SET_ERR_MSG_MOD(extack, "Port net device must be the VXLAN net
device");
+ return -EINVAL;
+ }
+
+ /* State is not part of the entry key and can be ignored on deletion
+ * requests.
+ */
+ if ((nlmsg_flags & (NLM_F_CREATE | NLM_F_REPLACE)) &&
+ entry->state != MDB_PERMANENT) {
+ NL_SET_ERR_MSG_MOD(extack, "MDB entry must be permanent");
+ return -EINVAL;
+ }
+
+ if (entry->flags) {
+ NL_SET_ERR_MSG_MOD(extack, "Invalid MDB entry flags");
+ return -EINVAL;
+ }
+
+ if (entry->vid) {
+ NL_SET_ERR_MSG_MOD(extack, "VID must not be specified");
+ return -EINVAL;
+ }
+
+ if (entry->addr.proto != htons(ETH_P_IP) &&
+ entry->addr.proto != htons(ETH_P_IPV6)) {
+ NL_SET_ERR_MSG_MOD(extack, "Group address must be an IPv4 / IPv6
address");
+ return -EINVAL;
+ }
+
+ if (NL_REQ_ATTR_CHECK(extack, NULL, tb, MDBA_SET_ENTRY_ATTRS)) {
+ NL_SET_ERR_MSG_MOD(extack, "Missing MDBA_SET_ENTRY_ATTRS
attribute");
+ return -EINVAL;
+ }
+
+ return vxlan_mdb_config_attrs_init(cfg, entry, tb[MDBA_SET_ENTRY_ATTRS],
+ extack);
+}
+
+static void vxlan_mdb_config_fini(struct vxlan_mdb_config *cfg)
+{
+ vxlan_mdb_config_src_list_fini(cfg);
+}
+
+static struct vxlan_mdb_entry *
+vxlan_mdb_entry_lookup(struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry_key *group)
+{
+ return rhashtable_lookup_fast(&vxlan->mdb_tbl, group,
+ vxlan_mdb_rht_params);
+}
+
+static struct vxlan_mdb_remote *
+vxlan_mdb_remote_lookup(const struct vxlan_mdb_entry *mdb_entry,
+ const union vxlan_addr *addr)
+{
+ struct vxlan_mdb_remote *remote;
+
+ list_for_each_entry(remote, &mdb_entry->remotes, list) {
+ struct vxlan_rdst *rd = rtnl_dereference(remote->rd);
+
+ if (vxlan_addr_equal(addr, &rd->remote_ip))
+ return remote;
+ }
+
+ return NULL;
+}
+
+static void vxlan_mdb_rdst_free(struct rcu_head *head)
+{
+ struct vxlan_rdst *rd = container_of(head, struct vxlan_rdst, rcu);
+
+ dst_cache_destroy(&rd->dst_cache);
+ kfree(rd);
+}
+
+static int vxlan_mdb_remote_rdst_init(const struct vxlan_mdb_config *cfg,
+ struct vxlan_mdb_remote *remote)
+{
+ struct vxlan_rdst *rd;
+ int err;
+
+ rd = kzalloc(sizeof(*rd), GFP_KERNEL);
+ if (!rd)
+ return -ENOMEM;
+
+ err = dst_cache_init(&rd->dst_cache, GFP_KERNEL);
+ if (err)
+ goto err_free_rdst;
+
+ rd->remote_ip = cfg->remote_ip;
+ rd->remote_port = cfg->remote_port;
+ rd->remote_vni = cfg->remote_vni;
+ rd->remote_ifindex = cfg->remote_ifindex;
+ rcu_assign_pointer(remote->rd, rd);
+
+ return 0;
+
+err_free_rdst:
+ kfree(rd);
+ return err;
+}
+
+static void vxlan_mdb_remote_rdst_fini(struct vxlan_rdst *rd)
+{
+ call_rcu(&rd->rcu, vxlan_mdb_rdst_free);
+}
+
+static int vxlan_mdb_remote_init(const struct vxlan_mdb_config *cfg,
+ struct vxlan_mdb_remote *remote)
+{
+ int err;
+
+ err = vxlan_mdb_remote_rdst_init(cfg, remote);
+ if (err)
+ return err;
+
+ remote->flags = cfg->flags;
+ remote->filter_mode = cfg->filter_mode;
+ remote->rt_protocol = cfg->rt_protocol;
+ INIT_HLIST_HEAD(&remote->src_list);
+
+ return 0;
+}
+
+static void vxlan_mdb_remote_fini(struct vxlan_dev *vxlan,
+ struct vxlan_mdb_remote *remote)
+{
+ WARN_ON_ONCE(!hlist_empty(&remote->src_list));
+ vxlan_mdb_remote_rdst_fini(rtnl_dereference(remote->rd));
+}
+
+static struct vxlan_mdb_src_entry *
+vxlan_mdb_remote_src_entry_lookup(const struct vxlan_mdb_remote *remote,
+ const union vxlan_addr *addr)
+{
+ struct vxlan_mdb_src_entry *ent;
+
+ hlist_for_each_entry(ent, &remote->src_list, node) {
+ if (vxlan_addr_equal(&ent->addr, addr))
+ return ent;
+ }
+
+ return NULL;
+}
+
+static struct vxlan_mdb_src_entry *
+vxlan_mdb_remote_src_entry_add(struct vxlan_mdb_remote *remote,
+ const union vxlan_addr *addr)
+{
+ struct vxlan_mdb_src_entry *ent;
+
+ ent = kzalloc(sizeof(*ent), GFP_KERNEL);
+ if (!ent)
+ return NULL;
+
+ ent->addr = *addr;
+ hlist_add_head(&ent->node, &remote->src_list);
+
+ return ent;
+}
+
+static void
+vxlan_mdb_remote_src_entry_del(struct vxlan_mdb_src_entry *ent)
+{
+ hlist_del(&ent->node);
+ kfree(ent);
+}
+
+static int
+vxlan_mdb_remote_src_fwd_add(const struct vxlan_mdb_config *cfg,
+ const union vxlan_addr *addr,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_mdb_config sg_cfg;
+
+ memset(&sg_cfg, 0, sizeof(sg_cfg));
+ sg_cfg.vxlan = cfg->vxlan;
+ sg_cfg.group.src = *addr;
+ sg_cfg.group.dst = cfg->group.dst;
+ sg_cfg.group.vni = cfg->group.vni;
+ INIT_LIST_HEAD(&sg_cfg.src_list);
+ sg_cfg.remote_ip = cfg->remote_ip;
+ sg_cfg.remote_ifindex = cfg->remote_ifindex;
+ sg_cfg.remote_vni = cfg->remote_vni;
+ sg_cfg.remote_port = cfg->remote_port;
+ sg_cfg.nlflags = cfg->nlflags;
+ sg_cfg.filter_mode = MCAST_INCLUDE;
+ if (cfg->filter_mode == MCAST_EXCLUDE)
+ sg_cfg.flags = VXLAN_MDB_REMOTE_F_BLOCKED;
+ sg_cfg.rt_protocol = cfg->rt_protocol;
+
+ return __vxlan_mdb_add(&sg_cfg, extack);
+}
+
+static void
+vxlan_mdb_remote_src_fwd_del(struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry_key *group,
+ const struct vxlan_mdb_remote *remote,
+ const union vxlan_addr *addr)
+{
+ struct vxlan_rdst *rd = rtnl_dereference(remote->rd);
+ struct vxlan_mdb_config sg_cfg;
+
+ memset(&sg_cfg, 0, sizeof(sg_cfg));
+ sg_cfg.vxlan = vxlan;
+ sg_cfg.group.src = *addr;
+ sg_cfg.group.dst = group->dst;
+ sg_cfg.group.vni = group->vni;
+ INIT_LIST_HEAD(&sg_cfg.src_list);
+ sg_cfg.remote_ip = rd->remote_ip;
+
+ __vxlan_mdb_del(&sg_cfg, NULL);
+}
+
+static int
+vxlan_mdb_remote_src_add(const struct vxlan_mdb_config *cfg,
+ struct vxlan_mdb_remote *remote,
+ const struct vxlan_mdb_config_src_entry *src,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_mdb_src_entry *ent;
+ int err;
+
+ ent = vxlan_mdb_remote_src_entry_lookup(remote, &src->addr);
+ if (!ent) {
+ ent = vxlan_mdb_remote_src_entry_add(remote, &src->addr);
+ if (!ent)
+ return -ENOMEM;
+ } else if (!(cfg->nlflags & NLM_F_REPLACE)) {
+ NL_SET_ERR_MSG_MOD(extack, "Source entry already exists");
+ return -EEXIST;
+ }
+
+ err = vxlan_mdb_remote_src_fwd_add(cfg, &ent->addr, extack);
+ if (err)
+ goto err_src_del;
+
+ /* Clear flags in case source entry was marked for deletion as part of
+ * replace flow.
+ */
+ ent->flags = 0;
+
+ return 0;
+
+err_src_del:
+ vxlan_mdb_remote_src_entry_del(ent);
+ return err;
+}
+
+static void vxlan_mdb_remote_src_del(struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry_key *group,
+ const struct vxlan_mdb_remote *remote,
+ struct vxlan_mdb_src_entry *ent)
+{
+ vxlan_mdb_remote_src_fwd_del(vxlan, group, remote, &ent->addr);
+ vxlan_mdb_remote_src_entry_del(ent);
+}
+
+static int vxlan_mdb_remote_srcs_add(const struct vxlan_mdb_config *cfg,
+ struct vxlan_mdb_remote *remote,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_mdb_config_src_entry *src;
+ struct vxlan_mdb_src_entry *ent;
+ struct hlist_node *tmp;
+ int err;
+
+ list_for_each_entry(src, &cfg->src_list, node) {
+ err = vxlan_mdb_remote_src_add(cfg, remote, src, extack);
+ if (err)
+ goto err_src_del;
+ }
+
+ return 0;
+
+err_src_del:
+ hlist_for_each_entry_safe(ent, tmp, &remote->src_list, node)
+ vxlan_mdb_remote_src_del(cfg->vxlan, &cfg->group, remote, ent);
+ return err;
+}
+
+static void vxlan_mdb_remote_srcs_del(struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry_key *group,
+ struct vxlan_mdb_remote *remote)
+{
+ struct vxlan_mdb_src_entry *ent;
+ struct hlist_node *tmp;
+
+ hlist_for_each_entry_safe(ent, tmp, &remote->src_list, node)
+ vxlan_mdb_remote_src_del(vxlan, group, remote, ent);
+}
+
+static size_t
+vxlan_mdb_nlmsg_src_list_size(const struct vxlan_mdb_entry_key *group,
+ const struct vxlan_mdb_remote *remote)
+{
+ struct vxlan_mdb_src_entry *ent;
+ size_t nlmsg_size;
+
+ if (hlist_empty(&remote->src_list))
+ return 0;
+
+ /* MDBA_MDB_EATTR_SRC_LIST */
+ nlmsg_size = nla_total_size(0);
+
+ hlist_for_each_entry(ent, &remote->src_list, node) {
+ /* MDBA_MDB_SRCLIST_ENTRY */
+ nlmsg_size += nla_total_size(0) +
+ /* MDBA_MDB_SRCATTR_ADDRESS */
+ nla_total_size(vxlan_addr_size(&group->dst)) +
+ /* MDBA_MDB_SRCATTR_TIMER */
+ nla_total_size(sizeof(u8));
+ }
+
+ return nlmsg_size;
+}
+
+static size_t vxlan_mdb_nlmsg_size(const struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry *mdb_entry,
+ const struct vxlan_mdb_remote *remote)
+{
+ const struct vxlan_mdb_entry_key *group = &mdb_entry->key;
+ struct vxlan_rdst *rd = rtnl_dereference(remote->rd);
+ size_t nlmsg_size;
+
+ nlmsg_size = NLMSG_ALIGN(sizeof(struct br_port_msg)) +
+ /* MDBA_MDB */
+ nla_total_size(0) +
+ /* MDBA_MDB_ENTRY */
+ nla_total_size(0) +
+ /* MDBA_MDB_ENTRY_INFO */
+ nla_total_size(sizeof(struct br_mdb_entry)) +
+ /* MDBA_MDB_EATTR_TIMER */
+ nla_total_size(sizeof(u32));
+ /* MDBA_MDB_EATTR_SOURCE */
+ if (vxlan_mdb_is_sg(group))
+ nlmsg_size += nla_total_size(vxlan_addr_size(&group->dst));
+ /* MDBA_MDB_EATTR_RTPROT */
+ nlmsg_size += nla_total_size(sizeof(u8));
+ /* MDBA_MDB_EATTR_SRC_LIST */
+ nlmsg_size += vxlan_mdb_nlmsg_src_list_size(group, remote);
+ /* MDBA_MDB_EATTR_GROUP_MODE */
+ nlmsg_size += nla_total_size(sizeof(u8));
+ /* MDBA_MDB_EATTR_DST */
+ nlmsg_size += nla_total_size(vxlan_addr_size(&rd->remote_ip));
+ /* MDBA_MDB_EATTR_DST_PORT */
+ if (rd->remote_port && rd->remote_port !=
vxlan->cfg.dst_port)
+ nlmsg_size += nla_total_size(sizeof(u16));
+ /* MDBA_MDB_EATTR_VNI */
+ if (rd->remote_vni != vxlan->default_dst.remote_vni)
+ nlmsg_size += nla_total_size(sizeof(u32));
+ /* MDBA_MDB_EATTR_IFINDEX */
+ if (rd->remote_ifindex)
+ nlmsg_size += nla_total_size(sizeof(u32));
+ /* MDBA_MDB_EATTR_SRC_VNI */
+ if ((vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA) &&
group->vni)
+ nlmsg_size += nla_total_size(sizeof(u32));
+
+ return nlmsg_size;
+}
+
+static int vxlan_mdb_nlmsg_fill(const struct vxlan_dev *vxlan,
+ struct sk_buff *skb,
+ const struct vxlan_mdb_entry *mdb_entry,
+ const struct vxlan_mdb_remote *remote,
+ int type)
+{
+ struct nlattr *mdb_nest, *mdb_entry_nest;
+ struct br_port_msg *bpm;
+ struct nlmsghdr *nlh;
+
+ nlh = nlmsg_put(skb, 0, 0, type, sizeof(*bpm), 0);
+ if (!nlh)
+ return -EMSGSIZE;
+
+ bpm = nlmsg_data(nlh);
+ memset(bpm, 0, sizeof(*bpm));
+ bpm->family = AF_BRIDGE;
+ bpm->ifindex = vxlan->dev->ifindex;
+
+ mdb_nest = nla_nest_start_noflag(skb, MDBA_MDB);
+ if (!mdb_nest)
+ goto cancel;
+ mdb_entry_nest = nla_nest_start_noflag(skb, MDBA_MDB_ENTRY);
+ if (!mdb_entry_nest)
+ goto cancel;
+
+ if (vxlan_mdb_entry_info_fill(vxlan, skb, mdb_entry, remote))
+ goto cancel;
+
+ nla_nest_end(skb, mdb_entry_nest);
+ nla_nest_end(skb, mdb_nest);
+ nlmsg_end(skb, nlh);
+
+ return 0;
+
+cancel:
+ nlmsg_cancel(skb, nlh);
+ return -EMSGSIZE;
+}
+
+static void vxlan_mdb_remote_notify(const struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry *mdb_entry,
+ const struct vxlan_mdb_remote *remote,
+ int type)
+{
+ struct net *net = dev_net(vxlan->dev);
+ struct sk_buff *skb;
+ int err = -ENOBUFS;
+
+ skb = nlmsg_new(vxlan_mdb_nlmsg_size(vxlan, mdb_entry, remote),
+ GFP_KERNEL);
+ if (!skb)
+ goto errout;
+
+ err = vxlan_mdb_nlmsg_fill(vxlan, skb, mdb_entry, remote, type);
+ if (err) {
+ kfree_skb(skb);
+ goto errout;
+ }
+
+ rtnl_notify(skb, net, 0, RTNLGRP_MDB, NULL, GFP_KERNEL);
+ return;
+errout:
+ rtnl_set_sk_err(net, RTNLGRP_MDB, err);
+}
+
+static int
+vxlan_mdb_remote_srcs_replace(const struct vxlan_mdb_config *cfg,
+ const struct vxlan_mdb_entry *mdb_entry,
+ struct vxlan_mdb_remote *remote,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_dev *vxlan = cfg->vxlan;
+ struct vxlan_mdb_src_entry *ent;
+ struct hlist_node *tmp;
+ int err;
+
+ hlist_for_each_entry(ent, &remote->src_list, node)
+ ent->flags |= VXLAN_SGRP_F_DELETE;
+
+ err = vxlan_mdb_remote_srcs_add(cfg, remote, extack);
+ if (err)
+ goto err_clear_delete;
+
+ hlist_for_each_entry_safe(ent, tmp, &remote->src_list, node) {
+ if (ent->flags & VXLAN_SGRP_F_DELETE)
+ vxlan_mdb_remote_src_del(vxlan, &mdb_entry->key, remote,
+ ent);
+ }
+
+ return 0;
+
+err_clear_delete:
+ hlist_for_each_entry(ent, &remote->src_list, node)
+ ent->flags &= ~VXLAN_SGRP_F_DELETE;
+ return err;
+}
+
+static int vxlan_mdb_remote_replace(const struct vxlan_mdb_config *cfg,
+ const struct vxlan_mdb_entry *mdb_entry,
+ struct vxlan_mdb_remote *remote,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_rdst *new_rd, *old_rd = rtnl_dereference(remote->rd);
+ struct vxlan_dev *vxlan = cfg->vxlan;
+ int err;
+
+ err = vxlan_mdb_remote_rdst_init(cfg, remote);
+ if (err)
+ return err;
+ new_rd = rtnl_dereference(remote->rd);
+
+ err = vxlan_mdb_remote_srcs_replace(cfg, mdb_entry, remote, extack);
+ if (err)
+ goto err_rdst_reset;
+
+ WRITE_ONCE(remote->flags, cfg->flags);
+ WRITE_ONCE(remote->filter_mode, cfg->filter_mode);
+ remote->rt_protocol = cfg->rt_protocol;
+ vxlan_mdb_remote_notify(vxlan, mdb_entry, remote, RTM_NEWMDB);
+
+ vxlan_mdb_remote_rdst_fini(old_rd);
+
+ return 0;
+
+err_rdst_reset:
+ rcu_assign_pointer(remote->rd, old_rd);
+ vxlan_mdb_remote_rdst_fini(new_rd);
+ return err;
+}
+
+static int vxlan_mdb_remote_add(const struct vxlan_mdb_config *cfg,
+ struct vxlan_mdb_entry *mdb_entry,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_mdb_remote *remote;
+ int err;
+
+ remote = vxlan_mdb_remote_lookup(mdb_entry, &cfg->remote_ip);
+ if (remote) {
+ if (!(cfg->nlflags & NLM_F_REPLACE)) {
+ NL_SET_ERR_MSG_MOD(extack, "Replace not specified and MDB remote entry
already exists");
+ return -EEXIST;
+ }
+ return vxlan_mdb_remote_replace(cfg, mdb_entry, remote, extack);
+ }
+
+ if (!(cfg->nlflags & NLM_F_CREATE)) {
+ NL_SET_ERR_MSG_MOD(extack, "Create not specified and entry does not
exist");
+ return -ENOENT;
+ }
+
+ remote = kzalloc(sizeof(*remote), GFP_KERNEL);
+ if (!remote)
+ return -ENOMEM;
+
+ err = vxlan_mdb_remote_init(cfg, remote);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack, "Failed to initialize remote MDB
entry");
+ goto err_free_remote;
+ }
+
+ err = vxlan_mdb_remote_srcs_add(cfg, remote, extack);
+ if (err)
+ goto err_remote_fini;
+
+ list_add_rcu(&remote->list, &mdb_entry->remotes);
+ vxlan_mdb_remote_notify(cfg->vxlan, mdb_entry, remote, RTM_NEWMDB);
+
+ return 0;
+
+err_remote_fini:
+ vxlan_mdb_remote_fini(cfg->vxlan, remote);
+err_free_remote:
+ kfree(remote);
+ return err;
+}
+
+static void vxlan_mdb_remote_del(struct vxlan_dev *vxlan,
+ struct vxlan_mdb_entry *mdb_entry,
+ struct vxlan_mdb_remote *remote)
+{
+ vxlan_mdb_remote_notify(vxlan, mdb_entry, remote, RTM_DELMDB);
+ list_del_rcu(&remote->list);
+ vxlan_mdb_remote_srcs_del(vxlan, &mdb_entry->key, remote);
+ vxlan_mdb_remote_fini(vxlan, remote);
+ kfree_rcu(remote, rcu);
+}
+
+static struct vxlan_mdb_entry *
+vxlan_mdb_entry_get(struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry_key *group)
+{
+ struct vxlan_mdb_entry *mdb_entry;
+ int err;
+
+ mdb_entry = vxlan_mdb_entry_lookup(vxlan, group);
+ if (mdb_entry)
+ return mdb_entry;
+
+ mdb_entry = kzalloc(sizeof(*mdb_entry), GFP_KERNEL);
+ if (!mdb_entry)
+ return ERR_PTR(-ENOMEM);
+
+ INIT_LIST_HEAD(&mdb_entry->remotes);
+ memcpy(&mdb_entry->key, group, sizeof(mdb_entry->key));
+ hlist_add_head(&mdb_entry->mdb_node, &vxlan->mdb_list);
+
+ err = rhashtable_lookup_insert_fast(&vxlan->mdb_tbl,
+ &mdb_entry->rhnode,
+ vxlan_mdb_rht_params);
+ if (err)
+ goto err_free_entry;
+
+ return mdb_entry;
+
+err_free_entry:
+ hlist_del(&mdb_entry->mdb_node);
+ kfree(mdb_entry);
+ return ERR_PTR(err);
+}
+
+static void vxlan_mdb_entry_put(struct vxlan_dev *vxlan,
+ struct vxlan_mdb_entry *mdb_entry)
+{
+ if (!list_empty(&mdb_entry->remotes))
+ return;
+
+ rhashtable_remove_fast(&vxlan->mdb_tbl, &mdb_entry->rhnode,
+ vxlan_mdb_rht_params);
+ hlist_del(&mdb_entry->mdb_node);
+ kfree_rcu(mdb_entry, rcu);
+}
+
+static int __vxlan_mdb_add(const struct vxlan_mdb_config *cfg,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_dev *vxlan = cfg->vxlan;
+ struct vxlan_mdb_entry *mdb_entry;
+ int err;
+
+ mdb_entry = vxlan_mdb_entry_get(vxlan, &cfg->group);
+ if (IS_ERR(mdb_entry))
+ return PTR_ERR(mdb_entry);
+
+ err = vxlan_mdb_remote_add(cfg, mdb_entry, extack);
+ if (err)
+ goto err_entry_put;
+
+ vxlan->mdb_seq++;
+
+ return 0;
+
+err_entry_put:
+ vxlan_mdb_entry_put(vxlan, mdb_entry);
+ return err;
+}
+
+static int __vxlan_mdb_del(const struct vxlan_mdb_config *cfg,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_dev *vxlan = cfg->vxlan;
+ struct vxlan_mdb_entry *mdb_entry;
+ struct vxlan_mdb_remote *remote;
+
+ mdb_entry = vxlan_mdb_entry_lookup(vxlan, &cfg->group);
+ if (!mdb_entry) {
+ NL_SET_ERR_MSG_MOD(extack, "Did not find MDB entry");
+ return -ENOENT;
+ }
+
+ remote = vxlan_mdb_remote_lookup(mdb_entry, &cfg->remote_ip);
+ if (!remote) {
+ NL_SET_ERR_MSG_MOD(extack, "Did not find MDB remote entry");
+ return -ENOENT;
+ }
+
+ vxlan_mdb_remote_del(vxlan, mdb_entry, remote);
+ vxlan_mdb_entry_put(vxlan, mdb_entry);
+
+ vxlan->mdb_seq++;
+
+ return 0;
+}
+
+int vxlan_mdb_add(struct net_device *dev, struct nlattr *tb[], u16 nlmsg_flags,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_mdb_config cfg;
+ int err;
+
+ ASSERT_RTNL();
+
+ err = vxlan_mdb_config_init(&cfg, dev, tb, nlmsg_flags, extack);
+ if (err)
+ return err;
+
+ err = __vxlan_mdb_add(&cfg, extack);
+
+ vxlan_mdb_config_fini(&cfg);
+ return err;
+}
+
+int vxlan_mdb_del(struct net_device *dev, struct nlattr *tb[],
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_mdb_config cfg;
+ int err;
+
+ ASSERT_RTNL();
+
+ err = vxlan_mdb_config_init(&cfg, dev, tb, 0, extack);
+ if (err)
+ return err;
+
+ err = __vxlan_mdb_del(&cfg, extack);
+
+ vxlan_mdb_config_fini(&cfg);
+ return err;
+}
+
+static void vxlan_mdb_check_empty(void *ptr, void *arg)
+{
+ WARN_ON_ONCE(1);
+}
+
+static void vxlan_mdb_remotes_flush(struct vxlan_dev *vxlan,
+ struct vxlan_mdb_entry *mdb_entry)
+{
+ struct vxlan_mdb_remote *remote, *tmp;
+
+ list_for_each_entry_safe(remote, tmp, &mdb_entry->remotes, list)
+ vxlan_mdb_remote_del(vxlan, mdb_entry, remote);
+}
+
+static void vxlan_mdb_entries_flush(struct vxlan_dev *vxlan)
+{
+ struct vxlan_mdb_entry *mdb_entry;
+ struct hlist_node *tmp;
+
+ /* The removal of an entry cannot trigger the removal of another entry
+ * since entries are always added to the head of the list.
+ */
+ hlist_for_each_entry_safe(mdb_entry, tmp, &vxlan->mdb_list, mdb_node) {
+ vxlan_mdb_remotes_flush(vxlan, mdb_entry);
+ vxlan_mdb_entry_put(vxlan, mdb_entry);
+ }
+}
+
+int vxlan_mdb_init(struct vxlan_dev *vxlan)
+{
+ int err;
+
+ err = rhashtable_init(&vxlan->mdb_tbl, &vxlan_mdb_rht_params);
+ if (err)
+ return err;
+
+ INIT_HLIST_HEAD(&vxlan->mdb_list);
+
+ return 0;
+}
+
+void vxlan_mdb_fini(struct vxlan_dev *vxlan)
+{
+ vxlan_mdb_entries_flush(vxlan);
+ rhashtable_free_and_destroy(&vxlan->mdb_tbl, vxlan_mdb_check_empty,
+ NULL);
+}
diff --git a/drivers/net/vxlan/vxlan_private.h
b/drivers/net/vxlan/vxlan_private.h
index f4977925cb8a..7bcc38faae27 100644
--- a/drivers/net/vxlan/vxlan_private.h
+++ b/drivers/net/vxlan/vxlan_private.h
@@ -110,6 +110,14 @@ static inline int vxlan_nla_put_addr(struct sk_buff *skb,
int attr,
return nla_put_in_addr(skb, attr, ip->sin.sin_addr.s_addr);
}
+static inline bool vxlan_addr_is_multicast(const union vxlan_addr *ip)
+{
+ if (ip->sa.sa_family == AF_INET6)
+ return ipv6_addr_is_multicast(&ip->sin6.sin6_addr);
+ else
+ return ipv4_is_multicast(ip->sin.sin_addr.s_addr);
+}
+
#else /* !CONFIG_IPV6 */
static inline
@@ -138,8 +146,21 @@ static inline int vxlan_nla_put_addr(struct sk_buff *skb,
int attr,
return nla_put_in_addr(skb, attr, ip->sin.sin_addr.s_addr);
}
+static inline bool vxlan_addr_is_multicast(const union vxlan_addr *ip)
+{
+ return ipv4_is_multicast(ip->sin.sin_addr.s_addr);
+}
+
#endif
+static inline size_t vxlan_addr_size(const union vxlan_addr *ip)
+{
+ if (ip->sa.sa_family == AF_INET6)
+ return sizeof(struct in6_addr);
+ else
+ return sizeof(__be32);
+}
+
static inline struct vxlan_vni_node *
vxlan_vnifilter_lookup(struct vxlan_dev *vxlan, __be32 vni)
{
@@ -206,4 +227,14 @@ int vxlan_igmp_join(struct vxlan_dev *vxlan, union
vxlan_addr *rip,
int rifindex);
int vxlan_igmp_leave(struct vxlan_dev *vxlan, union vxlan_addr *rip,
int rifindex);
+
+/* vxlan_mdb.c */
+int vxlan_mdb_dump(struct net_device *dev, struct sk_buff *skb,
+ struct netlink_callback *cb);
+int vxlan_mdb_add(struct net_device *dev, struct nlattr *tb[], u16 nlmsg_flags,
+ struct netlink_ext_ack *extack);
+int vxlan_mdb_del(struct net_device *dev, struct nlattr *tb[],
+ struct netlink_ext_ack *extack);
+int vxlan_mdb_init(struct vxlan_dev *vxlan);
+void vxlan_mdb_fini(struct vxlan_dev *vxlan);
#endif
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index bca5b01af247..110b703d8978 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -3,6 +3,7 @@
#define __NET_VXLAN_H 1
#include <linux/if_vlan.h>
+#include <linux/rhashtable-types.h>
#include <net/udp_tunnel.h>
#include <net/dst_metadata.h>
#include <net/rtnetlink.h>
@@ -302,6 +303,10 @@ struct vxlan_dev {
struct vxlan_vni_group __rcu *vnigrp;
struct hlist_head fdb_head[FDB_HASH_SIZE];
+
+ struct rhashtable mdb_tbl;
+ struct hlist_head mdb_list;
+ unsigned int mdb_seq;
};
#define VXLAN_F_LEARN 0x01
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index d60c456710b3..c9d624f528c5 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -633,6 +633,11 @@ enum {
MDBA_MDB_EATTR_GROUP_MODE,
MDBA_MDB_EATTR_SOURCE,
MDBA_MDB_EATTR_RTPROT,
+ MDBA_MDB_EATTR_DST,
+ MDBA_MDB_EATTR_DST_PORT,
+ MDBA_MDB_EATTR_VNI,
+ MDBA_MDB_EATTR_IFINDEX,
+ MDBA_MDB_EATTR_SRC_VNI,
__MDBA_MDB_EATTR_MAX
};
#define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1)
@@ -728,6 +733,11 @@ enum {
MDBE_ATTR_SRC_LIST,
MDBE_ATTR_GROUP_MODE,
MDBE_ATTR_RTPROT,
+ MDBE_ATTR_DST,
+ MDBE_ATTR_DST_PORT,
+ MDBE_ATTR_VNI,
+ MDBE_ATTR_IFINDEX,
+ MDBE_ATTR_SRC_VNI,
__MDBE_ATTR_MAX,
};
#define MDBE_ATTR_MAX (__MDBE_ATTR_MAX - 1)
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 08/11] vxlan: mdb: Add an internal flag to indicate MDB usage
Add an internal flag to indicate whether MDB entries are configured or
not. Set the flag after installing the first MDB entry and clear it
before deleting the last one.
The flag will be consulted by the data path which will only perform an
MDB lookup if the flag is set, thereby keeping the MDB overhead to a
minimum when the MDB is not used.
Another option would have been to use a static key, but it is global and
not per-device, unlike the current approach.
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
drivers/net/vxlan/vxlan_mdb.c | 7 +++++++
include/net/vxlan.h | 1 +
2 files changed, 8 insertions(+)
diff --git a/drivers/net/vxlan/vxlan_mdb.c b/drivers/net/vxlan/vxlan_mdb.c
index 129692b3663f..b32b1fb4a74a 100644
--- a/drivers/net/vxlan/vxlan_mdb.c
+++ b/drivers/net/vxlan/vxlan_mdb.c
@@ -1185,6 +1185,9 @@ vxlan_mdb_entry_get(struct vxlan_dev *vxlan,
if (err)
goto err_free_entry;
+ if (hlist_is_singular_node(&mdb_entry->mdb_node,
&vxlan->mdb_list))
+ vxlan->cfg.flags |= VXLAN_F_MDB;
+
return mdb_entry;
err_free_entry:
@@ -1199,6 +1202,9 @@ static void vxlan_mdb_entry_put(struct vxlan_dev *vxlan,
if (!list_empty(&mdb_entry->remotes))
return;
+ if (hlist_is_singular_node(&mdb_entry->mdb_node,
&vxlan->mdb_list))
+ vxlan->cfg.flags &= ~VXLAN_F_MDB;
+
rhashtable_remove_fast(&vxlan->mdb_tbl, &mdb_entry->rhnode,
vxlan_mdb_rht_params);
hlist_del(&mdb_entry->mdb_node);
@@ -1336,6 +1342,7 @@ int vxlan_mdb_init(struct vxlan_dev *vxlan)
void vxlan_mdb_fini(struct vxlan_dev *vxlan)
{
vxlan_mdb_entries_flush(vxlan);
+ WARN_ON_ONCE(vxlan->cfg.flags & VXLAN_F_MDB);
rhashtable_free_and_destroy(&vxlan->mdb_tbl, vxlan_mdb_check_empty,
NULL);
}
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 110b703d8978..b7b2e9abfb37 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -327,6 +327,7 @@ struct vxlan_dev {
#define VXLAN_F_IPV6_LINKLOCAL 0x8000
#define VXLAN_F_TTL_INHERIT 0x10000
#define VXLAN_F_VNIFILTER 0x20000
+#define VXLAN_F_MDB 0x40000
/* Flags that are used in the receive path. These flags must match in
* order for a socket to be shareable
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 09/11] vxlan: Add MDB data path support
Integrate MDB support into the Tx path of the VXLAN driver, allowing it
to selectively forward IP multicast traffic according to the matched MDB
entry.
If MDB entries are configured (i.e., 'VXLAN_F_MDB' is set) and the
packet is an IP multicast packet, perform up to three different lookups
according to the following priority:
1. For an (S, G) entry, using {Source VNI, Source IP, Destination IP}.
2. For a (*, G) entry, using {Source VNI, Destination IP}.
3. For the catchall MDB entry (0.0.0.0 or ::), using the source VNI.
The catchall MDB entry is similar to the catchall FDB entry
(00:00:00:00:00:00) that is currently used to transmit BUM (broadcast,
unknown unicast and multicast) traffic. However, unlike the catchall FDB
entry, this entry is only used to transmit unregistered IP multicast
traffic that is not link-local. Therefore, when configured, the catchall
FDB entry will only transmit BULL (broadcast, unknown unicast,
link-local multicast) traffic.
The catchall MDB entry is useful in deployments where inter-subnet
multicast forwarding is used and not all the VTEPs in a tenant domain
are members in all the broadcast domains. In such deployments it is
advantageous to transmit BULL (broadcast, unknown unicast and link-local
multicast) and unregistered IP multicast traffic on different tunnels.
If the same tunnel was used, a VTEP only interested in IP multicast
traffic would also pull all the BULL traffic and drop it as it is not a
member in the originating broadcast domain [1].
If the packet did not match an MDB entry (or if the packet is not an IP
multicast packet), return it to the Tx path, allowing it to be forwarded
according to the FDB.
If the packet did match an MDB entry, forward it to the associated
remote VTEPs. However, if the entry is a (*, G) entry and the associated
remote is in INCLUDE mode, then skip over it as the source IP is not in
its source list (otherwise the packet would have matched on an (S, G)
entry). Similarly, if the associated remote is marked as BLOCKED (can
only be set on (S, G) entries), then skip over it as well as the remote
is in EXCLUDE mode and the source IP is in its source list.
[1]
https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-irb-mcast#section-2.6
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
---
Notes:
v2:
* Use htons() in 'case' instead of ntohs() in 'switch'.
drivers/net/vxlan/vxlan_core.c | 15 ++++
drivers/net/vxlan/vxlan_mdb.c | 114 ++++++++++++++++++++++++++++++
drivers/net/vxlan/vxlan_private.h | 6 ++
3 files changed, 135 insertions(+)
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index a8b26d4f76de..8450768d2300 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -2743,6 +2743,21 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct
net_device *dev)
#endif
}
+ if (vxlan->cfg.flags & VXLAN_F_MDB) {
+ struct vxlan_mdb_entry *mdb_entry;
+
+ rcu_read_lock();
+ mdb_entry = vxlan_mdb_entry_skb_get(vxlan, skb, vni);
+ if (mdb_entry) {
+ netdev_tx_t ret;
+
+ ret = vxlan_mdb_xmit(vxlan, mdb_entry, skb);
+ rcu_read_unlock();
+ return ret;
+ }
+ rcu_read_unlock();
+ }
+
eth = eth_hdr(skb);
f = vxlan_find_mac(vxlan, eth->h_dest, vni);
did_rsc = false;
diff --git a/drivers/net/vxlan/vxlan_mdb.c b/drivers/net/vxlan/vxlan_mdb.c
index b32b1fb4a74a..5e041622261a 100644
--- a/drivers/net/vxlan/vxlan_mdb.c
+++ b/drivers/net/vxlan/vxlan_mdb.c
@@ -1298,6 +1298,120 @@ int vxlan_mdb_del(struct net_device *dev, struct nlattr
*tb[],
return err;
}
+struct vxlan_mdb_entry *vxlan_mdb_entry_skb_get(struct vxlan_dev *vxlan,
+ struct sk_buff *skb,
+ __be32 src_vni)
+{
+ struct vxlan_mdb_entry *mdb_entry;
+ struct vxlan_mdb_entry_key group;
+
+ if (!is_multicast_ether_addr(eth_hdr(skb)->h_dest) ||
+ is_broadcast_ether_addr(eth_hdr(skb)->h_dest))
+ return NULL;
+
+ /* When not in collect metadata mode, 'src_vni' is zero, but MDB
+ * entries are stored with the VNI of the VXLAN device.
+ */
+ if (!(vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA))
+ src_vni = vxlan->default_dst.remote_vni;
+
+ memset(&group, 0, sizeof(group));
+ group.vni = src_vni;
+
+ switch (skb->protocol) {
+ case htons(ETH_P_IP):
+ if (!pskb_may_pull(skb, sizeof(struct iphdr)))
+ return NULL;
+ group.dst.sa.sa_family = AF_INET;
+ group.dst.sin.sin_addr.s_addr = ip_hdr(skb)->daddr;
+ group.src.sa.sa_family = AF_INET;
+ group.src.sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
+ break;
+#if IS_ENABLED(CONFIG_IPV6)
+ case htons(ETH_P_IPV6):
+ if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
+ return NULL;
+ group.dst.sa.sa_family = AF_INET6;
+ group.dst.sin6.sin6_addr = ipv6_hdr(skb)->daddr;
+ group.src.sa.sa_family = AF_INET6;
+ group.src.sin6.sin6_addr = ipv6_hdr(skb)->saddr;
+ break;
+#endif
+ default:
+ return NULL;
+ }
+
+ mdb_entry = vxlan_mdb_entry_lookup(vxlan, &group);
+ if (mdb_entry)
+ return mdb_entry;
+
+ memset(&group.src, 0, sizeof(group.src));
+ mdb_entry = vxlan_mdb_entry_lookup(vxlan, &group);
+ if (mdb_entry)
+ return mdb_entry;
+
+ /* No (S, G) or (*, G) found. Look up the all-zeros entry, but only if
+ * the destination IP address is not link-local multicast since we want
+ * to transmit such traffic together with broadcast and unknown unicast
+ * traffic.
+ */
+ switch (skb->protocol) {
+ case htons(ETH_P_IP):
+ if (ipv4_is_local_multicast(group.dst.sin.sin_addr.s_addr))
+ return NULL;
+ group.dst.sin.sin_addr.s_addr = 0;
+ break;
+#if IS_ENABLED(CONFIG_IPV6)
+ case htons(ETH_P_IPV6):
+ if (ipv6_addr_type(&group.dst.sin6.sin6_addr) &
+ IPV6_ADDR_LINKLOCAL)
+ return NULL;
+ memset(&group.dst.sin6.sin6_addr, 0,
+ sizeof(group.dst.sin6.sin6_addr));
+ break;
+#endif
+ default:
+ return NULL;
+ }
+
+ return vxlan_mdb_entry_lookup(vxlan, &group);
+}
+
+netdev_tx_t vxlan_mdb_xmit(struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry *mdb_entry,
+ struct sk_buff *skb)
+{
+ struct vxlan_mdb_remote *remote, *fremote = NULL;
+ __be32 src_vni = mdb_entry->key.vni;
+
+ list_for_each_entry_rcu(remote, &mdb_entry->remotes, list) {
+ struct sk_buff *skb1;
+
+ if ((vxlan_mdb_is_star_g(&mdb_entry->key) &&
+ READ_ONCE(remote->filter_mode) == MCAST_INCLUDE) ||
+ (READ_ONCE(remote->flags) & VXLAN_MDB_REMOTE_F_BLOCKED))
+ continue;
+
+ if (!fremote) {
+ fremote = remote;
+ continue;
+ }
+
+ skb1 = skb_clone(skb, GFP_ATOMIC);
+ if (skb1)
+ vxlan_xmit_one(skb1, vxlan->dev, src_vni,
+ rcu_dereference(remote->rd), false);
+ }
+
+ if (fremote)
+ vxlan_xmit_one(skb, vxlan->dev, src_vni,
+ rcu_dereference(fremote->rd), false);
+ else
+ kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+}
+
static void vxlan_mdb_check_empty(void *ptr, void *arg)
{
WARN_ON_ONCE(1);
diff --git a/drivers/net/vxlan/vxlan_private.h
b/drivers/net/vxlan/vxlan_private.h
index 7bcc38faae27..817fa3075842 100644
--- a/drivers/net/vxlan/vxlan_private.h
+++ b/drivers/net/vxlan/vxlan_private.h
@@ -235,6 +235,12 @@ int vxlan_mdb_add(struct net_device *dev, struct nlattr
*tb[], u16 nlmsg_flags,
struct netlink_ext_ack *extack);
int vxlan_mdb_del(struct net_device *dev, struct nlattr *tb[],
struct netlink_ext_ack *extack);
+struct vxlan_mdb_entry *vxlan_mdb_entry_skb_get(struct vxlan_dev *vxlan,
+ struct sk_buff *skb,
+ __be32 src_vni);
+netdev_tx_t vxlan_mdb_xmit(struct vxlan_dev *vxlan,
+ const struct vxlan_mdb_entry *mdb_entry,
+ struct sk_buff *skb);
int vxlan_mdb_init(struct vxlan_dev *vxlan);
void vxlan_mdb_fini(struct vxlan_dev *vxlan);
#endif
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 10/11] vxlan: Enable MDB support
Now that the VXLAN MDB control and data paths are in place we can expose
the VXLAN MDB functionality to user space.
Set the VXLAN MDB net device operations to the appropriate functions,
thereby allowing the rtnetlink code to reach the VXLAN driver.
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
drivers/net/vxlan/vxlan_core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index 8450768d2300..e2e5f5dac7e6 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -3083,6 +3083,9 @@ static const struct net_device_ops vxlan_netdev_ether_ops
= {
.ndo_fdb_del = vxlan_fdb_delete,
.ndo_fdb_dump = vxlan_fdb_dump,
.ndo_fdb_get = vxlan_fdb_get,
+ .ndo_mdb_add = vxlan_mdb_add,
+ .ndo_mdb_del = vxlan_mdb_del,
+ .ndo_mdb_dump = vxlan_mdb_dump,
.ndo_fill_metadata_dst = vxlan_fill_metadata_dst,
};
--
2.37.3
Ido Schimmel
2023-Mar-15 13:11 UTC
[Bridge] [PATCH net-next v2 11/11] selftests: net: Add VXLAN MDB test
Add test cases for VXLAN MDB, testing the control and data paths. Two
different sets of namespaces (i.e., ns{1,2}_v4 and ns{1,2}_v6) are used
in order to test VXLAN MDB with both IPv4 and IPv6 underlays,
respectively.
Example truncated output:
# ./test_vxlan_mdb.sh
[...]
Tests passed: 620
Tests failed: 0
Signed-off-by: Ido Schimmel <idosch at nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor at blackwall.org>
---
Notes:
v1:
* New patch.
tools/testing/selftests/net/Makefile | 1 +
tools/testing/selftests/net/config | 1 +
tools/testing/selftests/net/test_vxlan_mdb.sh | 2318 +++++++++++++++++
3 files changed, 2320 insertions(+)
create mode 100755 tools/testing/selftests/net/test_vxlan_mdb.sh
diff --git a/tools/testing/selftests/net/Makefile
b/tools/testing/selftests/net/Makefile
index 099741290184..a179fbd6f972 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -81,6 +81,7 @@ TEST_GEN_FILES += sctp_hello
TEST_GEN_FILES += csum
TEST_GEN_FILES += nat6to4.o
TEST_GEN_FILES += ip_local_port_range
+TEST_PROGS += test_vxlan_mdb.sh
TEST_FILES := settings
diff --git a/tools/testing/selftests/net/config
b/tools/testing/selftests/net/config
index cc9fd55ab869..4c7ce07afa2f 100644
--- a/tools/testing/selftests/net/config
+++ b/tools/testing/selftests/net/config
@@ -48,3 +48,4 @@ CONFIG_BAREUDP=m
CONFIG_IPV6_IOAM6_LWTUNNEL=y
CONFIG_CRYPTO_SM4_GENERIC=y
CONFIG_AMT=m
+CONFIG_VXLAN=m
diff --git a/tools/testing/selftests/net/test_vxlan_mdb.sh
b/tools/testing/selftests/net/test_vxlan_mdb.sh
new file mode 100755
index 000000000000..31e5f0f8859d
--- /dev/null
+++ b/tools/testing/selftests/net/test_vxlan_mdb.sh
@@ -0,0 +1,2318 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking VXLAN MDB functionality. The topology consists of
+# two sets of namespaces: One for the testing of IPv4 underlay and another for
+# IPv6. In both cases, both IPv4 and IPv6 overlay traffic are tested.
+#
+# Data path functionality is tested by sending traffic from one of the upper
+# namespaces and checking using ingress tc filters that the expected traffic
+# was received by one of the lower namespaces.
+#
+# +------------------------------------+ +------------------------------------+
+# | ns1_v4 | | ns1_v6 |
+# | | | |
+# | br0.10 br0.4000 br0.20 | | br0.10 br0.4000 br0.20 |
+# | + + + | | + + + |
+# | | | | | | | | | |
+# | | | | | | | | | |
+# | +---------+---------+ | | +---------+---------+ |
+# | | | | | |
+# | | | | | |
+# | + | | + |
+# | br0 | | br0 |
+# | + | | + |
+# | | | | | |
+# | | | | | |
+# | + | | + |
+# | vx0 | | vx0 |
+# | | | |
+# | | | |
+# | veth0 | | veth0 |
+# | + | | + |
+# +-----------------|------------------+ +-----------------|------------------+
+# | |
+# +-----------------|------------------+ +-----------------|------------------+
+# | + | | + |
+# | veth0 | | veth0 |
+# | | | |
+# | | | |
+# | vx0 | | vx0 |
+# | + | | + |
+# | | | | | |
+# | | | | | |
+# | + | | + |
+# | br0 | | br0 |
+# | + | | + |
+# | | | | | |
+# | | | | | |
+# | +---------+---------+ | | +---------+---------+ |
+# | | | | | | | | | |
+# | | | | | | | | | |
+# | + + + | | + + + |
+# | br0.10 br0.4000 br0.10 | | br0.10 br0.4000 br0.20 |
+# | | | |
+# | ns2_v4 | | ns2_v6 |
+# +------------------------------------+ +------------------------------------+
+
+ret=0
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+CONTROL_PATH_TESTS="
+ basic_star_g_ipv4_ipv4
+ basic_star_g_ipv6_ipv4
+ basic_star_g_ipv4_ipv6
+ basic_star_g_ipv6_ipv6
+ basic_sg_ipv4_ipv4
+ basic_sg_ipv6_ipv4
+ basic_sg_ipv4_ipv6
+ basic_sg_ipv6_ipv6
+ star_g_ipv4_ipv4
+ star_g_ipv6_ipv4
+ star_g_ipv4_ipv6
+ star_g_ipv6_ipv6
+ sg_ipv4_ipv4
+ sg_ipv6_ipv4
+ sg_ipv4_ipv6
+ sg_ipv6_ipv6
+ dump_ipv4_ipv4
+ dump_ipv6_ipv4
+ dump_ipv4_ipv6
+ dump_ipv6_ipv6
+"
+
+DATA_PATH_TESTS="
+ encap_params_ipv4_ipv4
+ encap_params_ipv6_ipv4
+ encap_params_ipv4_ipv6
+ encap_params_ipv6_ipv6
+ starg_exclude_ir_ipv4_ipv4
+ starg_exclude_ir_ipv6_ipv4
+ starg_exclude_ir_ipv4_ipv6
+ starg_exclude_ir_ipv6_ipv6
+ starg_include_ir_ipv4_ipv4
+ starg_include_ir_ipv6_ipv4
+ starg_include_ir_ipv4_ipv6
+ starg_include_ir_ipv6_ipv6
+ starg_exclude_p2mp_ipv4_ipv4
+ starg_exclude_p2mp_ipv6_ipv4
+ starg_exclude_p2mp_ipv4_ipv6
+ starg_exclude_p2mp_ipv6_ipv6
+ starg_include_p2mp_ipv4_ipv4
+ starg_include_p2mp_ipv6_ipv4
+ starg_include_p2mp_ipv4_ipv6
+ starg_include_p2mp_ipv6_ipv6
+ egress_vni_translation_ipv4_ipv4
+ egress_vni_translation_ipv6_ipv4
+ egress_vni_translation_ipv4_ipv6
+ egress_vni_translation_ipv6_ipv6
+ all_zeros_mdb_ipv4
+ all_zeros_mdb_ipv6
+ mdb_fdb_ipv4_ipv4
+ mdb_fdb_ipv6_ipv4
+ mdb_fdb_ipv4_ipv6
+ mdb_fdb_ipv6_ipv6
+ mdb_torture_ipv4_ipv4
+ mdb_torture_ipv6_ipv4
+ mdb_torture_ipv4_ipv6
+ mdb_torture_ipv6_ipv6
+"
+
+# All tests in this script. Can be overridden with -t option.
+TESTS="
+ $CONTROL_PATH_TESTS
+ $DATA_PATH_TESTS
+"
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+################################################################################
+# Utilities
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf "TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "$VERBOSE" = "1" ]; then
+ echo " rc=$rc, expected $expected"
+ fi
+
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+
+ if [ "${PAUSE}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+ local cmd="$1"
+ local out
+ local stderr="2>/dev/null"
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf "COMMAND: $cmd\n"
+ stderr+ fi
+
+ out=$(eval $cmd $stderr)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo " $out"
+ fi
+
+ return $rc
+}
+
+tc_check_packets()
+{
+ local ns=$1; shift
+ local id=$1; shift
+ local handle=$1; shift
+ local count=$1; shift
+ local pkts
+
+ sleep 0.1
+ pkts=$(tc -n $ns -j -s filter show $id \
+ | jq ".[] | select(.options.handle == $handle) | \
+ .options.actions[0].stats.packets")
+ [[ $pkts == $count ]]
+}
+
+################################################################################
+# Setup
+
+setup_common_ns()
+{
+ local ns=$1; shift
+ local local_addr=$1; shift
+
+ ip netns exec $ns sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec $ns sysctl -qw net.ipv4.fib_multipath_use_neigh=1
+ ip netns exec $ns sysctl -qw
net.ipv4.conf.default.ignore_routes_with_linkdown=1
+ ip netns exec $ns sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+ ip netns exec $ns sysctl -qw net.ipv6.conf.all.forwarding=1
+ ip netns exec $ns sysctl -qw net.ipv6.conf.default.forwarding=1
+ ip netns exec $ns sysctl -qw
net.ipv6.conf.default.ignore_routes_with_linkdown=1
+ ip netns exec $ns sysctl -qw net.ipv6.conf.all.accept_dad=0
+ ip netns exec $ns sysctl -qw net.ipv6.conf.default.accept_dad=0
+
+ ip -n $ns link set dev lo up
+ ip -n $ns address add $local_addr dev lo
+
+ ip -n $ns link set dev veth0 up
+
+ ip -n $ns link add name br0 up type bridge vlan_filtering 1 \
+ vlan_default_pvid 0 mcast_snooping 0
+
+ ip -n $ns link add link br0 name br0.10 up type vlan id 10
+ bridge -n $ns vlan add vid 10 dev br0 self
+
+ ip -n $ns link add link br0 name br0.20 up type vlan id 20
+ bridge -n $ns vlan add vid 20 dev br0 self
+
+ ip -n $ns link add link br0 name br0.4000 up type vlan id 4000
+ bridge -n $ns vlan add vid 4000 dev br0 self
+
+ ip -n $ns link add name vx0 up master br0 type vxlan \
+ local $local_addr dstport 4789 external vnifilter
+ bridge -n $ns link set dev vx0 vlan_tunnel on
+
+ bridge -n $ns vlan add vid 10 dev vx0
+ bridge -n $ns vlan add vid 10 dev vx0 tunnel_info id 10010
+ bridge -n $ns vni add vni 10010 dev vx0
+
+ bridge -n $ns vlan add vid 20 dev vx0
+ bridge -n $ns vlan add vid 20 dev vx0 tunnel_info id 10020
+ bridge -n $ns vni add vni 10020 dev vx0
+
+ bridge -n $ns vlan add vid 4000 dev vx0 pvid
+ bridge -n $ns vlan add vid 4000 dev vx0 tunnel_info id 14000
+ bridge -n $ns vni add vni 14000 dev vx0
+}
+
+setup_common()
+{
+ local ns1=$1; shift
+ local ns2=$1; shift
+ local local_addr1=$1; shift
+ local local_addr2=$1; shift
+
+ ip netns add $ns1
+ ip netns add $ns2
+
+ ip link add name veth0 type veth peer name veth1
+ ip link set dev veth0 netns $ns1 name veth0
+ ip link set dev veth1 netns $ns2 name veth0
+
+ setup_common_ns $ns1 $local_addr1
+ setup_common_ns $ns2 $local_addr2
+}
+
+setup_v4()
+{
+ setup_common ns1_v4 ns2_v4 192.0.2.1 192.0.2.2
+
+ ip -n ns1_v4 address add 192.0.2.17/28 dev veth0
+ ip -n ns2_v4 address add 192.0.2.18/28 dev veth0
+
+ ip -n ns1_v4 route add default via 192.0.2.18
+ ip -n ns2_v4 route add default via 192.0.2.17
+}
+
+cleanup_v4()
+{
+ ip netns del ns2_v4
+ ip netns del ns1_v4
+}
+
+setup_v6()
+{
+ setup_common ns1_v6 ns2_v6 2001:db8:1::1 2001:db8:1::2
+
+ ip -n ns1_v6 address add 2001:db8:2::1/64 dev veth0 nodad
+ ip -n ns2_v6 address add 2001:db8:2::2/64 dev veth0 nodad
+
+ ip -n ns1_v6 route add default via 2001:db8:2::2
+ ip -n ns2_v6 route add default via 2001:db8:2::1
+}
+
+cleanup_v6()
+{
+ ip netns del ns2_v6
+ ip netns del ns1_v6
+}
+
+setup()
+{
+ set -e
+
+ setup_v4
+ setup_v6
+
+ sleep 5
+
+ set +e
+}
+
+cleanup()
+{
+ cleanup_v6 &> /dev/null
+ cleanup_v4 &> /dev/null
+}
+
+################################################################################
+# Tests - Control path
+
+basic_common()
+{
+ local ns1=$1; shift
+ local grp_key=$1; shift
+ local vtep_ip=$1; shift
+
+ # Test basic control path operations common to all MDB entry types.
+
+ # Basic add, replace and delete behavior.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst
$vtep_ip src_vni 10010"
+ log_test $? 0 "MDB entry addition"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\""
+ log_test $? 0 "MDB entry presence after addition"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent
dst $vtep_ip src_vni 10010"
+ log_test $? 0 "MDB entry replacement"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\""
+ log_test $? 0 "MDB entry presence after replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip
src_vni 10010"
+ log_test $? 0 "MDB entry deletion"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\""
+ log_test $? 1 "MDB entry presence after deletion"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip
src_vni 10010"
+ log_test $? 255 "Non-existent MDB entry deletion"
+
+ # Default protocol and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst
$vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\" | grep \"proto static\""
+ log_test $? 0 "MDB entry default protocol"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent
proto 123 dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\" | grep \"proto 123\""
+ log_test $? 0 "MDB entry protocol replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip
src_vni 10010"
+
+ # Default destination port and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst
$vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\" | grep \" dst_port \""
+ log_test $? 1 "MDB entry default destination port"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent
dst $vtep_ip dst_port 1234 src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\" | grep \"dst_port 1234\""
+ log_test $? 0 "MDB entry destination port replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip
src_vni 10010"
+
+ # Default destination VNI and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst
$vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\" | grep \" vni \""
+ log_test $? 1 "MDB entry default destination VNI"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent
dst $vtep_ip vni 1234 src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\" | grep \"vni 1234\""
+ log_test $? 0 "MDB entry destination VNI replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip
src_vni 10010"
+
+ # Default outgoing interface and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst
$vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\" | grep \" via \""
+ log_test $? 1 "MDB entry default outgoing interface"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent
dst $vtep_ip src_vni 10010 via veth0"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep
\"$grp_key\" | grep \"via veth0\""
+ log_test $? 0 "MDB entry outgoing interface replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip
src_vni 10010"
+
+ # Common error cases.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port veth0 $grp_key permanent dst
$vtep_ip src_vni 10010"
+ log_test $? 255 "MDB entry with mismatch between device and port"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key temp dst
$vtep_ip src_vni 10010"
+ log_test $? 255 "MDB entry with temp state"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent vid
10 dst $vtep_ip src_vni 10010"
+ log_test $? 255 "MDB entry with VLAN"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp 01:02:03:04:05:06
permanent dst $vtep_ip src_vni 10010"
+ log_test $? 255 "MDB entry MAC address"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent"
+ log_test $? 255 "MDB entry without extended parameters"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent proto
3 dst $vtep_ip src_vni 10010"
+ log_test $? 255 "MDB entry with an invalid protocol"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst
$vtep_ip vni $((2 ** 24)) src_vni 10010"
+ log_test $? 255 "MDB entry with an invalid destination VNI"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst
$vtep_ip src_vni $((2 ** 24))"
+ log_test $? 255 "MDB entry with an invalid source VNI"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent
src_vni 10010"
+ log_test $? 255 "MDB entry without a remote destination IP"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst
$vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst
$vtep_ip src_vni 10010"
+ log_test $? 255 "Duplicate MDB entries"
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip
src_vni 10010"
+}
+
+basic_star_g_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local grp_key="grp 239.1.1.1"
+ local vtep_ip=198.51.100.100
+
+ echo
+ echo "Control path: Basic (*, G) operations - IPv4 overlay / IPv4
underlay"
+ echo
"--------------------------------------------------------------------"
+
+ basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_star_g_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local grp_key="grp ff0e::1"
+ local vtep_ip=198.51.100.100
+
+ echo
+ echo "Control path: Basic (*, G) operations - IPv6 overlay / IPv4
underlay"
+ echo
"--------------------------------------------------------------------"
+
+ basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_star_g_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local grp_key="grp 239.1.1.1"
+ local vtep_ip=2001:db8:1000::1
+
+ echo
+ echo "Control path: Basic (*, G) operations - IPv4 overlay / IPv6
underlay"
+ echo
"--------------------------------------------------------------------"
+
+ basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_star_g_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local grp_key="grp ff0e::1"
+ local vtep_ip=2001:db8:1000::1
+
+ echo
+ echo "Control path: Basic (*, G) operations - IPv6 overlay / IPv6
underlay"
+ echo
"--------------------------------------------------------------------"
+
+ basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_sg_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local grp_key="grp 239.1.1.1 src 192.0.2.129"
+ local vtep_ip=198.51.100.100
+
+ echo
+ echo "Control path: Basic (S, G) operations - IPv4 overlay / IPv4
underlay"
+ echo
"--------------------------------------------------------------------"
+
+ basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_sg_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local grp_key="grp ff0e::1 src 2001:db8:100::1"
+ local vtep_ip=198.51.100.100
+
+ echo
+ echo "Control path: Basic (S, G) operations - IPv6 overlay / IPv4
underlay"
+ echo
"---------------------------------------------------------------------"
+
+ basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_sg_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local grp_key="grp 239.1.1.1 src 192.0.2.129"
+ local vtep_ip=2001:db8:1000::1
+
+ echo
+ echo "Control path: Basic (S, G) operations - IPv4 overlay / IPv6
underlay"
+ echo
"--------------------------------------------------------------------"
+
+ basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_sg_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local grp_key="grp ff0e::1 src 2001:db8:100::1"
+ local vtep_ip=2001:db8:1000::1
+
+ echo
+ echo "Control path: Basic (S, G) operations - IPv6 overlay / IPv6
underlay"
+ echo
"--------------------------------------------------------------------"
+
+ basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+star_g_common()
+{
+ local ns1=$1; shift
+ local grp=$1; shift
+ local src1=$1; shift
+ local src2=$1; shift
+ local src3=$1; shift
+ local vtep_ip=$1; shift
+ local all_zeros_grp=$1; shift
+
+ # Test control path operations specific to (*, G) entries.
+
+ # Basic add, replace and delete behavior.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+ log_test $? 0 "(*, G) MDB entry addition with source list"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \""
+ log_test $? 0 "(*, G) MDB entry presence after addition"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src1\""
+ log_test $? 0 "(S, G) MDB entry presence after addition"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+ log_test $? 0 "(*, G) MDB entry replacement with source list"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \""
+ log_test $? 0 "(*, G) MDB entry presence after replacement"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src1\""
+ log_test $? 0 "(S, G) MDB entry presence after replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip
src_vni 10010"
+ log_test $? 0 "(*, G) MDB entry deletion"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \""
+ log_test $? 1 "(*, G) MDB entry presence after deletion"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src1\""
+ log_test $? 1 "(S, G) MDB entry presence after deletion"
+
+ # Default filter mode and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent dst
$vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
exclude"
+ log_test $? 0 "(*, G) MDB entry default filter mode"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode include source_list $src1 dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
include"
+ log_test $? 0 "(*, G) MDB entry after replacing filter mode to
\"include\""
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src1\""
+ log_test $? 0 "(S, G) MDB entry after replacing filter mode to
\"include\""
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src1\" | grep blocked"
+ log_test $? 1 "\"blocked\" flag after replacing filter mode to
\"include\""
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
exclude"
+ log_test $? 0 "(*, G) MDB entry after replacing filter mode to
\"exclude\""
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src1\""
+ log_test $? 0 "(S, G) MDB entry after replacing filter mode to
\"exclude\""
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src1\" | grep blocked"
+ log_test $? 0 "\"blocked\" flag after replacing filter mode to
\"exclude\""
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip
src_vni 10010"
+
+ # Default source list and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent dst
$vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
source_list"
+ log_test $? 1 "(*, G) MDB entry default source list"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1,$src2,$src3 dst $vtep_ip src_vni
10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src1\""
+ log_test $? 0 "(S, G) MDB entry of 1st source after replacing source
list"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src2\""
+ log_test $? 0 "(S, G) MDB entry of 2nd source after replacing source
list"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src3\""
+ log_test $? 0 "(S, G) MDB entry of 3rd source after replacing source
list"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1,$src3 dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src1\""
+ log_test $? 0 "(S, G) MDB entry of 1st source after removing source"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src2\""
+ log_test $? 1 "(S, G) MDB entry of 2nd source after removing source"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
\"src $src3\""
+ log_test $? 0 "(S, G) MDB entry of 3rd source after removing source"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip
src_vni 10010"
+
+ # Default protocol and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \" | grep \"proto static\""
+ log_test $? 0 "(*, G) MDB entry default protocol"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep \"
src \" | grep \"proto static\""
+ log_test $? 0 "(S, G) MDB entry default protocol"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 proto bgp dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \" | grep \"proto bgp\""
+ log_test $? 0 "(*, G) MDB entry protocol after replacement"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep \"
src \" | grep \"proto bgp\""
+ log_test $? 0 "(S, G) MDB entry protocol after replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip
src_vni 10010"
+
+ # Default destination port and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \" | grep \" dst_port \""
+ log_test $? 1 "(*, G) MDB entry default destination port"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep \"
src \" | grep \" dst_port \""
+ log_test $? 1 "(S, G) MDB entry default destination port"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip dst_port 1234 src_vni
10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \" | grep \" dst_port 1234 \""
+ log_test $? 0 "(*, G) MDB entry destination port after replacement"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep \"
src \" | grep \" dst_port 1234 \""
+ log_test $? 0 "(S, G) MDB entry destination port after replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip
src_vni 10010"
+
+ # Default destination VNI and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \" | grep \" vni \""
+ log_test $? 1 "(*, G) MDB entry default destination VNI"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep \"
src \" | grep \" vni \""
+ log_test $? 1 "(S, G) MDB entry default destination VNI"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip vni 1234 src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \" | grep \" vni 1234 \""
+ log_test $? 0 "(*, G) MDB entry destination VNI after replacement"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep \"
src \" | grep \" vni 1234 \""
+ log_test $? 0 "(S, G) MDB entry destination VNI after replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip
src_vni 10010"
+
+ # Default outgoing interface and replacement.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \" | grep \" via \""
+ log_test $? 1 "(*, G) MDB entry default outgoing interface"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep \"
src \" | grep \" via \""
+ log_test $? 1 "(S, G) MDB entry default outgoing interface"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010 via veth0"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep -v
\" src \" | grep \" via veth0 \""
+ log_test $? 0 "(*, G) MDB entry outgoing interface after
replacement"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep \"
src \" | grep \" via veth0 \""
+ log_test $? 0 "(S, G) MDB entry outgoing interface after
replacement"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip
src_vni 10010"
+
+ # Error cases.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $all_zeros_grp
permanent filter_mode exclude dst $vtep_ip src_vni 10010"
+ log_test $? 255 "All-zeros group with filter mode"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $all_zeros_grp
permanent source_list $src1 dst $vtep_ip src_vni 10010"
+ log_test $? 255 "All-zeros group with source list"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent
filter_mode include dst $vtep_ip src_vni 10010"
+ log_test $? 255 "(*, G) INCLUDE with an empty source list"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $grp dst $vtep_ip src_vni 10010"
+ log_test $? 255 "Invalid source in source list"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent
source_list $src1 dst $vtep_ip src_vni 10010"
+ log_test $? 255 "Source list without filter mode"
+}
+
+star_g_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local grp=239.1.1.1
+ local src1=192.0.2.129
+ local src2=192.0.2.130
+ local src3=192.0.2.131
+ local vtep_ip=198.51.100.100
+ local all_zeros_grp=0.0.0.0
+
+ echo
+ echo "Control path: (*, G) operations - IPv4 overlay / IPv4
underlay"
+ echo
"--------------------------------------------------------------"
+
+ star_g_common $ns1 $grp $src1 $src2 $src3 $vtep_ip $all_zeros_grp
+}
+
+star_g_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local grp=ff0e::1
+ local src1=2001:db8:100::1
+ local src2=2001:db8:100::2
+ local src3=2001:db8:100::3
+ local vtep_ip=198.51.100.100
+ local all_zeros_grp=::
+
+ echo
+ echo "Control path: (*, G) operations - IPv6 overlay / IPv4
underlay"
+ echo
"--------------------------------------------------------------"
+
+ star_g_common $ns1 $grp $src1 $src2 $src3 $vtep_ip $all_zeros_grp
+}
+
+star_g_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local grp=239.1.1.1
+ local src1=192.0.2.129
+ local src2=192.0.2.130
+ local src3=192.0.2.131
+ local vtep_ip=2001:db8:1000::1
+ local all_zeros_grp=0.0.0.0
+
+ echo
+ echo "Control path: (*, G) operations - IPv4 overlay / IPv6
underlay"
+ echo
"--------------------------------------------------------------"
+
+ star_g_common $ns1 $grp $src1 $src2 $src3 $vtep_ip $all_zeros_grp
+}
+
+star_g_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local grp=ff0e::1
+ local src1=2001:db8:100::1
+ local src2=2001:db8:100::2
+ local src3=2001:db8:100::3
+ local vtep_ip=2001:db8:1000::1
+ local all_zeros_grp=::
+
+ echo
+ echo "Control path: (*, G) operations - IPv6 overlay / IPv6
underlay"
+ echo
"--------------------------------------------------------------"
+
+ star_g_common $ns1 $grp $src1 $src2 $src3 $vtep_ip $all_zeros_grp
+}
+
+sg_common()
+{
+ local ns1=$1; shift
+ local grp=$1; shift
+ local src=$1; shift
+ local vtep_ip=$1; shift
+ local all_zeros_grp=$1; shift
+
+ # Test control path operations specific to (S, G) entries.
+
+ # Default filter mode.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp src $src
permanent dst $vtep_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 -d -s mdb show dev vx0 | grep $grp | grep
include"
+ log_test $? 0 "(S, G) MDB entry default filter mode"
+
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp src $src
permanent dst $vtep_ip src_vni 10010"
+
+ # Error cases.
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp src $src
permanent filter_mode include dst $vtep_ip src_vni 10010"
+ log_test $? 255 "(S, G) with filter mode"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp src $src
permanent source_list $src dst $vtep_ip src_vni 10010"
+ log_test $? 255 "(S, G) with source list"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp src $grp
permanent dst $vtep_ip src_vni 10010"
+ log_test $? 255 "(S, G) with an invalid source list"
+
+ run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $all_zeros_grp src
$src permanent dst $vtep_ip src_vni 10010"
+ log_test $? 255 "All-zeros group with source"
+}
+
+sg_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local grp=239.1.1.1
+ local src=192.0.2.129
+ local vtep_ip=198.51.100.100
+ local all_zeros_grp=0.0.0.0
+
+ echo
+ echo "Control path: (S, G) operations - IPv4 overlay / IPv4
underlay"
+ echo
"--------------------------------------------------------------"
+
+ sg_common $ns1 $grp $src $vtep_ip $all_zeros_grp
+}
+
+sg_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local grp=ff0e::1
+ local src=2001:db8:100::1
+ local vtep_ip=198.51.100.100
+ local all_zeros_grp=::
+
+ echo
+ echo "Control path: (S, G) operations - IPv6 overlay / IPv4
underlay"
+ echo
"--------------------------------------------------------------"
+
+ sg_common $ns1 $grp $src $vtep_ip $all_zeros_grp
+}
+
+sg_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local grp=239.1.1.1
+ local src=192.0.2.129
+ local vtep_ip=2001:db8:1000::1
+ local all_zeros_grp=0.0.0.0
+
+ echo
+ echo "Control path: (S, G) operations - IPv4 overlay / IPv6
underlay"
+ echo
"--------------------------------------------------------------"
+
+ sg_common $ns1 $grp $src $vtep_ip $all_zeros_grp
+}
+
+sg_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local grp=ff0e::1
+ local src=2001:db8:100::1
+ local vtep_ip=2001:db8:1000::1
+ local all_zeros_grp=::
+
+ echo
+ echo "Control path: (S, G) operations - IPv6 overlay / IPv6
underlay"
+ echo
"--------------------------------------------------------------"
+
+ sg_common $ns1 $grp $src $vtep_ip $all_zeros_grp
+}
+
+ipv4_grps_get()
+{
+ local max_grps=$1; shift
+ local i
+
+ for i in $(seq 0 $((max_grps - 1))); do
+ echo "239.1.1.$i"
+ done
+}
+
+ipv6_grps_get()
+{
+ local max_grps=$1; shift
+ local i
+
+ for i in $(seq 0 $((max_grps - 1))); do
+ echo "ff0e::$(printf %x $i)"
+ done
+}
+
+dump_common()
+{
+ local ns1=$1; shift
+ local local_addr=$1; shift
+ local remote_prefix=$1; shift
+ local fn=$1; shift
+ local max_vxlan_devs=2
+ local max_remotes=64
+ local max_grps=256
+ local num_entries
+ local batch_file
+ local grp
+ local i j
+
+ # The kernel maintains various markers for the MDB dump. Add a test for
+ # large scale MDB dump to make sure that all the configured entries are
+ # dumped and that the markers are used correctly.
+
+ # Create net devices.
+ for i in $(seq 1 $max_vxlan_devs); do
+ ip -n $ns1 link add name vx-test${i} up type vxlan \
+ local $local_addr dstport 4789 external vnifilter
+ done
+
+ # Create batch file with MDB entries.
+ batch_file=$(mktemp)
+ for i in $(seq 1 $max_vxlan_devs); do
+ for j in $(seq 1 $max_remotes); do
+ for grp in $($fn $max_grps); do
+ echo "mdb add dev vx-test${i} port vx-test${i} grp $grp permanent dst
${remote_prefix}${j}" >> $batch_file
+ done
+ done
+ done
+
+ # Program the batch file and check for expected number of entries.
+ bridge -n $ns1 -b $batch_file
+ for i in $(seq 1 $max_vxlan_devs); do
+ num_entries=$(bridge -n $ns1 mdb show dev vx-test${i} | grep
"permanent" | wc -l)
+ [[ $num_entries -eq $((max_grps * max_remotes)) ]]
+ log_test $? 0 "Large scale dump - VXLAN device #$i"
+ done
+
+ rm -rf $batch_file
+}
+
+dump_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local local_addr=192.0.2.1
+ local remote_prefix=198.51.100.
+ local fn=ipv4_grps_get
+
+ echo
+ echo "Control path: Large scale MDB dump - IPv4 overlay / IPv4
underlay"
+ echo
"-----------------------------------------------------------------"
+
+ dump_common $ns1 $local_addr $remote_prefix $fn
+}
+
+dump_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local local_addr=192.0.2.1
+ local remote_prefix=198.51.100.
+ local fn=ipv6_grps_get
+
+ echo
+ echo "Control path: Large scale MDB dump - IPv6 overlay / IPv4
underlay"
+ echo
"-----------------------------------------------------------------"
+
+ dump_common $ns1 $local_addr $remote_prefix $fn
+}
+
+dump_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local local_addr=2001:db8:1::1
+ local remote_prefix=2001:db8:1000::
+ local fn=ipv4_grps_get
+
+ echo
+ echo "Control path: Large scale MDB dump - IPv4 overlay / IPv6
underlay"
+ echo
"-----------------------------------------------------------------"
+
+ dump_common $ns1 $local_addr $remote_prefix $fn
+}
+
+dump_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local local_addr=2001:db8:1::1
+ local remote_prefix=2001:db8:1000::
+ local fn=ipv6_grps_get
+
+ echo
+ echo "Control path: Large scale MDB dump - IPv6 overlay / IPv6
underlay"
+ echo
"-----------------------------------------------------------------"
+
+ dump_common $ns1 $local_addr $remote_prefix $fn
+}
+
+################################################################################
+# Tests - Data path
+
+encap_params_common()
+{
+ local ns1=$1; shift
+ local ns2=$1; shift
+ local vtep1_ip=$1; shift
+ local vtep2_ip=$1; shift
+ local plen=$1; shift
+ local enc_ethtype=$1; shift
+ local grp=$1; shift
+ local src=$1; shift
+ local mz=$1; shift
+
+ # Test that packets forwarded by the VXLAN MDB are encapsulated with
+ # the correct parameters. Transmit packets from the first namespace and
+ # check that they hit the corresponding filters on the ingress of the
+ # second namespace.
+
+ run_cmd "tc -n $ns2 qdisc replace dev veth0 clsact"
+ run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+ run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+ run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+
+ # Check destination IP.
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
dst $vtep2_ip src_vni 10020"
+
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto all flower enc_dst_ip $vtep1_ip action pass"
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Destination IP - match"
+
+ run_cmd "ip netns exec $ns1 $mz br0.20 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Destination IP - no match"
+
+ run_cmd "tc -n $ns2 filter del dev vx0 ingress pref 1 handle 101
flower"
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep2_ip
src_vni 10020"
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip
src_vni 10010"
+
+ # Check destination port.
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
dst $vtep1_ip dst_port 1111 src_vni 10020"
+
+ run_cmd "tc -n $ns2 filter replace dev veth0 ingress pref 1 handle 101
proto $enc_ethtype flower ip_proto udp dst_port 4789 action pass"
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev veth0 ingress" 101 1
+ log_test $? 0 "Default destination port - match"
+
+ run_cmd "ip netns exec $ns1 $mz br0.20 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev veth0 ingress" 101 1
+ log_test $? 0 "Default destination port - no match"
+
+ run_cmd "tc -n $ns2 filter replace dev veth0 ingress pref 1 handle 101
proto $enc_ethtype flower ip_proto udp dst_port 1111 action pass"
+ run_cmd "ip netns exec $ns1 $mz br0.20 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev veth0 ingress" 101 1
+ log_test $? 0 "Non-default destination port - match"
+
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev veth0 ingress" 101 1
+ log_test $? 0 "Non-default destination port - no match"
+
+ run_cmd "tc -n $ns2 filter del dev veth0 ingress pref 1 handle 101
flower"
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip
src_vni 10020"
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip
src_vni 10010"
+
+ # Check default VNI.
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
dst $vtep1_ip src_vni 10020"
+
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto all flower enc_key_id 10010 action pass"
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Default destination VNI - match"
+
+ run_cmd "ip netns exec $ns1 $mz br0.20 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Default destination VNI - no match"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
dst $vtep1_ip vni 10020 src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
dst $vtep1_ip vni 10010 src_vni 10020"
+
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto all flower enc_key_id 10020 action pass"
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Non-default destination VNI - match"
+
+ run_cmd "ip netns exec $ns1 $mz br0.20 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Non-default destination VNI - no match"
+
+ run_cmd "tc -n $ns2 filter del dev vx0 ingress pref 1 handle 101
flower"
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip
src_vni 10020"
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip
src_vni 10010"
+}
+
+encap_params_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local plen=32
+ local enc_ethtype="ip"
+ local grp=239.1.1.1
+ local src=192.0.2.129
+
+ echo
+ echo "Data path: Encapsulation parameters - IPv4 overlay / IPv4
underlay"
+ echo
"------------------------------------------------------------------"
+
+ encap_params_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $enc_ethtype \
+ $grp $src "mausezahn"
+}
+
+encap_params_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local plen=32
+ local enc_ethtype="ip"
+ local grp=ff0e::1
+ local src=2001:db8:100::1
+
+ echo
+ echo "Data path: Encapsulation parameters - IPv6 overlay / IPv4
underlay"
+ echo
"------------------------------------------------------------------"
+
+ encap_params_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $enc_ethtype \
+ $grp $src "mausezahn -6"
+}
+
+encap_params_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local plen=128
+ local enc_ethtype="ipv6"
+ local grp=239.1.1.1
+ local src=192.0.2.129
+
+ echo
+ echo "Data path: Encapsulation parameters - IPv4 overlay / IPv6
underlay"
+ echo
"------------------------------------------------------------------"
+
+ encap_params_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $enc_ethtype \
+ $grp $src "mausezahn"
+}
+
+encap_params_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local plen=128
+ local enc_ethtype="ipv6"
+ local grp=ff0e::1
+ local src=2001:db8:100::1
+
+ echo
+ echo "Data path: Encapsulation parameters - IPv6 overlay / IPv6
underlay"
+ echo
"------------------------------------------------------------------"
+
+ encap_params_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $enc_ethtype \
+ $grp $src "mausezahn -6"
+}
+
+starg_exclude_ir_common()
+{
+ local ns1=$1; shift
+ local ns2=$1; shift
+ local vtep1_ip=$1; shift
+ local vtep2_ip=$1; shift
+ local plen=$1; shift
+ local grp=$1; shift
+ local valid_src=$1; shift
+ local invalid_src=$1; shift
+ local mz=$1; shift
+
+ # Install a (*, G) EXCLUDE MDB entry with one source and two remote
+ # VTEPs. Make sure that the source in the source list is not forwarded
+ # and that a source not in the list is forwarded. Remove one of the
+ # VTEPs from the entry and make sure that packets are only forwarded to
+ # the remaining VTEP.
+
+ run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+ run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+ run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto all flower enc_dst_ip $vtep1_ip action pass"
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102
proto all flower enc_dst_ip $vtep2_ip action pass"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $invalid_src dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $invalid_src dst $vtep2_ip src_vni 10010"
+
+ # Check that invalid source is not forwarded to any VTEP.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $invalid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+ log_test $? 0 "Block excluded source - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+ log_test $? 0 "Block excluded source - second VTEP"
+
+ # Check that valid source is forwarded to both VTEPs.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $valid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Forward valid source - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Forward valid source - second VTEP"
+
+ # Remove second VTEP.
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep2_ip
src_vni 10010"
+
+ # Check that invalid source is not forwarded to any VTEP.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $invalid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Block excluded source after removal - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Block excluded source after removal - second VTEP"
+
+ # Check that valid source is forwarded to the remaining VTEP.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $valid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+ log_test $? 0 "Forward valid source after removal - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Forward valid source after removal - second VTEP"
+}
+
+starg_exclude_ir_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local plen=32
+ local grp=239.1.1.1
+ local valid_src=192.0.2.129
+ local invalid_src=192.0.2.145
+
+ echo
+ echo "Data path: (*, G) EXCLUDE - IR - IPv4 overlay / IPv4 underlay"
+ echo "-------------------------------------------------------------"
+
+ starg_exclude_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+ $valid_src $invalid_src "mausezahn"
+}
+
+starg_exclude_ir_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local plen=32
+ local grp=ff0e::1
+ local valid_src=2001:db8:100::1
+ local invalid_src=2001:db8:200::1
+
+ echo
+ echo "Data path: (*, G) EXCLUDE - IR - IPv6 overlay / IPv4 underlay"
+ echo "-------------------------------------------------------------"
+
+ starg_exclude_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+ $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_exclude_ir_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local plen=128
+ local grp=239.1.1.1
+ local valid_src=192.0.2.129
+ local invalid_src=192.0.2.145
+
+ echo
+ echo "Data path: (*, G) EXCLUDE - IR - IPv4 overlay / IPv6 underlay"
+ echo "-------------------------------------------------------------"
+
+ starg_exclude_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+ $valid_src $invalid_src "mausezahn"
+}
+
+starg_exclude_ir_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local plen=128
+ local grp=ff0e::1
+ local valid_src=2001:db8:100::1
+ local invalid_src=2001:db8:200::1
+
+ echo
+ echo "Data path: (*, G) EXCLUDE - IR - IPv6 overlay / IPv6 underlay"
+ echo "-------------------------------------------------------------"
+
+ starg_exclude_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+ $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_include_ir_common()
+{
+ local ns1=$1; shift
+ local ns2=$1; shift
+ local vtep1_ip=$1; shift
+ local vtep2_ip=$1; shift
+ local plen=$1; shift
+ local grp=$1; shift
+ local valid_src=$1; shift
+ local invalid_src=$1; shift
+ local mz=$1; shift
+
+ # Install a (*, G) INCLUDE MDB entry with one source and two remote
+ # VTEPs. Make sure that the source in the source list is forwarded and
+ # that a source not in the list is not forwarded. Remove one of the
+ # VTEPs from the entry and make sure that packets are only forwarded to
+ # the remaining VTEP.
+
+ run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+ run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+ run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto all flower enc_dst_ip $vtep1_ip action pass"
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102
proto all flower enc_dst_ip $vtep2_ip action pass"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode include source_list $valid_src dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode include source_list $valid_src dst $vtep2_ip src_vni 10010"
+
+ # Check that invalid source is not forwarded to any VTEP.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $invalid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+ log_test $? 0 "Block excluded source - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+ log_test $? 0 "Block excluded source - second VTEP"
+
+ # Check that valid source is forwarded to both VTEPs.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $valid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Forward valid source - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Forward valid source - second VTEP"
+
+ # Remove second VTEP.
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep2_ip
src_vni 10010"
+
+ # Check that invalid source is not forwarded to any VTEP.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $invalid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Block excluded source after removal - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Block excluded source after removal - second VTEP"
+
+ # Check that valid source is forwarded to the remaining VTEP.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $valid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+ log_test $? 0 "Forward valid source after removal - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Forward valid source after removal - second VTEP"
+}
+
+starg_include_ir_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local plen=32
+ local grp=239.1.1.1
+ local valid_src=192.0.2.129
+ local invalid_src=192.0.2.145
+
+ echo
+ echo "Data path: (*, G) INCLUDE - IR - IPv4 overlay / IPv4 underlay"
+ echo "-------------------------------------------------------------"
+
+ starg_include_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+ $valid_src $invalid_src "mausezahn"
+}
+
+starg_include_ir_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local plen=32
+ local grp=ff0e::1
+ local valid_src=2001:db8:100::1
+ local invalid_src=2001:db8:200::1
+
+ echo
+ echo "Data path: (*, G) INCLUDE - IR - IPv6 overlay / IPv4 underlay"
+ echo "-------------------------------------------------------------"
+
+ starg_include_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+ $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_include_ir_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local plen=128
+ local grp=239.1.1.1
+ local valid_src=192.0.2.129
+ local invalid_src=192.0.2.145
+
+ echo
+ echo "Data path: (*, G) INCLUDE - IR - IPv4 overlay / IPv6 underlay"
+ echo "-------------------------------------------------------------"
+
+ starg_include_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+ $valid_src $invalid_src "mausezahn"
+}
+
+starg_include_ir_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local plen=128
+ local grp=ff0e::1
+ local valid_src=2001:db8:100::1
+ local invalid_src=2001:db8:200::1
+
+ echo
+ echo "Data path: (*, G) INCLUDE - IR - IPv6 overlay / IPv6 underlay"
+ echo "-------------------------------------------------------------"
+
+ starg_include_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+ $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_exclude_p2mp_common()
+{
+ local ns1=$1; shift
+ local ns2=$1; shift
+ local mcast_grp=$1; shift
+ local plen=$1; shift
+ local grp=$1; shift
+ local valid_src=$1; shift
+ local invalid_src=$1; shift
+ local mz=$1; shift
+
+ # Install a (*, G) EXCLUDE MDB entry with one source and one multicast
+ # group to which packets are sent. Make sure that the source in the
+ # source list is not forwarded and that a source not in the list is
+ # forwarded.
+
+ run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+ run_cmd "ip -n $ns2 address replace $mcast_grp/$plen dev veth0
autojoin"
+
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto all flower enc_dst_ip $mcast_grp action pass"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode exclude source_list $invalid_src dst $mcast_grp src_vni 10010 via
veth0"
+
+ # Check that invalid source is not forwarded.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $invalid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+ log_test $? 0 "Block excluded source"
+
+ # Check that valid source is forwarded.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $valid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Forward valid source"
+
+ # Remove the VTEP from the multicast group.
+ run_cmd "ip -n $ns2 address del $mcast_grp/$plen dev veth0"
+
+ # Check that valid source is not received anymore.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $valid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Receive of valid source after removal from group"
+}
+
+starg_exclude_p2mp_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local mcast_grp=238.1.1.1
+ local plen=32
+ local grp=239.1.1.1
+ local valid_src=192.0.2.129
+ local invalid_src=192.0.2.145
+
+ echo
+ echo "Data path: (*, G) EXCLUDE - P2MP - IPv4 overlay / IPv4
underlay"
+ echo
"---------------------------------------------------------------"
+
+ starg_exclude_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp \
+ $valid_src $invalid_src "mausezahn"
+}
+
+starg_exclude_p2mp_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local mcast_grp=238.1.1.1
+ local plen=32
+ local grp=ff0e::1
+ local valid_src=2001:db8:100::1
+ local invalid_src=2001:db8:200::1
+
+ echo
+ echo "Data path: (*, G) EXCLUDE - P2MP - IPv6 overlay / IPv4
underlay"
+ echo
"---------------------------------------------------------------"
+
+ starg_exclude_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp \
+ $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_exclude_p2mp_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local mcast_grp=ff0e::2
+ local plen=128
+ local grp=239.1.1.1
+ local valid_src=192.0.2.129
+ local invalid_src=192.0.2.145
+
+ echo
+ echo "Data path: (*, G) EXCLUDE - P2MP - IPv4 overlay / IPv6
underlay"
+ echo
"---------------------------------------------------------------"
+
+ starg_exclude_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp \
+ $valid_src $invalid_src "mausezahn"
+}
+
+starg_exclude_p2mp_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local mcast_grp=ff0e::2
+ local plen=128
+ local grp=ff0e::1
+ local valid_src=2001:db8:100::1
+ local invalid_src=2001:db8:200::1
+
+ echo
+ echo "Data path: (*, G) EXCLUDE - P2MP - IPv6 overlay / IPv6
underlay"
+ echo
"---------------------------------------------------------------"
+
+ starg_exclude_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp \
+ $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_include_p2mp_common()
+{
+ local ns1=$1; shift
+ local ns2=$1; shift
+ local mcast_grp=$1; shift
+ local plen=$1; shift
+ local grp=$1; shift
+ local valid_src=$1; shift
+ local invalid_src=$1; shift
+ local mz=$1; shift
+
+ # Install a (*, G) INCLUDE MDB entry with one source and one multicast
+ # group to which packets are sent. Make sure that the source in the
+ # source list is forwarded and that a source not in the list is not
+ # forwarded.
+
+ run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+ run_cmd "ip -n $ns2 address replace $mcast_grp/$plen dev veth0
autojoin"
+
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto all flower enc_dst_ip $mcast_grp action pass"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
filter_mode include source_list $valid_src dst $mcast_grp src_vni 10010 via
veth0"
+
+ # Check that invalid source is not forwarded.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $invalid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+ log_test $? 0 "Block excluded source"
+
+ # Check that valid source is forwarded.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $valid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Forward valid source"
+
+ # Remove the VTEP from the multicast group.
+ run_cmd "ip -n $ns2 address del $mcast_grp/$plen dev veth0"
+
+ # Check that valid source is not received anymore.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $valid_src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Receive of valid source after removal from group"
+}
+
+starg_include_p2mp_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local mcast_grp=238.1.1.1
+ local plen=32
+ local grp=239.1.1.1
+ local valid_src=192.0.2.129
+ local invalid_src=192.0.2.145
+
+ echo
+ echo "Data path: (*, G) INCLUDE - P2MP - IPv4 overlay / IPv4
underlay"
+ echo
"---------------------------------------------------------------"
+
+ starg_include_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp \
+ $valid_src $invalid_src "mausezahn"
+}
+
+starg_include_p2mp_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local mcast_grp=238.1.1.1
+ local plen=32
+ local grp=ff0e::1
+ local valid_src=2001:db8:100::1
+ local invalid_src=2001:db8:200::1
+
+ echo
+ echo "Data path: (*, G) INCLUDE - P2MP - IPv6 overlay / IPv4
underlay"
+ echo
"---------------------------------------------------------------"
+
+ starg_include_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp \
+ $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_include_p2mp_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local mcast_grp=ff0e::2
+ local plen=128
+ local grp=239.1.1.1
+ local valid_src=192.0.2.129
+ local invalid_src=192.0.2.145
+
+ echo
+ echo "Data path: (*, G) INCLUDE - P2MP - IPv4 overlay / IPv6
underlay"
+ echo
"---------------------------------------------------------------"
+
+ starg_include_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp \
+ $valid_src $invalid_src "mausezahn"
+}
+
+starg_include_p2mp_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local mcast_grp=ff0e::2
+ local plen=128
+ local grp=ff0e::1
+ local valid_src=2001:db8:100::1
+ local invalid_src=2001:db8:200::1
+
+ echo
+ echo "Data path: (*, G) INCLUDE - P2MP - IPv6 overlay / IPv6
underlay"
+ echo
"---------------------------------------------------------------"
+
+ starg_include_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp \
+ $valid_src $invalid_src "mausezahn -6"
+}
+
+egress_vni_translation_common()
+{
+ local ns1=$1; shift
+ local ns2=$1; shift
+ local mcast_grp=$1; shift
+ local plen=$1; shift
+ local proto=$1; shift
+ local grp=$1; shift
+ local src=$1; shift
+ local mz=$1; shift
+
+ # When P2MP tunnels are used with optimized inter-subnet multicast
+ # (OISM) [1], the ingress VTEP does not perform VNI translation and
+ # uses the VNI of the source broadcast domain (BD). If the egress VTEP
+ # is a member in the source BD, then no VNI translation is needed.
+ # Otherwise, the egress VTEP needs to translate the VNI to the
+ # supplementary broadcast domain (SBD) VNI, which is usually the L3VNI.
+ #
+ # In this test, remove the VTEP in the second namespace from VLAN 10
+ # (VNI 10010) and make sure that a packet sent from this VLAN on the
+ # first VTEP is received by the SVI corresponding to the L3VNI (14000 /
+ # VLAN 4000) on the second VTEP.
+ #
+ # The second VTEP will be able to decapsulate the packet with VNI 10010
+ # because this VNI is configured on its shared VXLAN device. Later,
+ # when ingressing the bridge, the VNI to VLAN lookup will fail because
+ # the VTEP is not a member in VLAN 10, which will cause the packet to
+ # be tagged with VLAN 4000 since it is configured as PVID.
+ #
+ # [1] https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-irb-mcast
+
+ run_cmd "tc -n $ns2 qdisc replace dev br0.4000 clsact"
+ run_cmd "ip -n $ns2 address replace $mcast_grp/$plen dev veth0
autojoin"
+ run_cmd "tc -n $ns2 filter replace dev br0.4000 ingress pref 1 handle 101
proto $proto flower src_ip $src dst_ip $grp action pass"
+
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp src $src
permanent dst $mcast_grp src_vni 10010 via veth0"
+
+ # Remove the second VTEP from VLAN 10.
+ run_cmd "bridge -n $ns2 vlan del vid 10 dev vx0"
+
+ # Make sure that packets sent from the first VTEP over VLAN 10 are
+ # received by the SVI corresponding to the L3VNI (14000 / VLAN 4000) on
+ # the second VTEP, since it is configured as PVID.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev br0.4000 ingress" 101 1
+ log_test $? 0 "Egress VNI translation - PVID configured"
+
+ # Remove PVID flag from VLAN 4000 on the second VTEP and make sure
+ # packets are no longer received by the SVI interface.
+ run_cmd "bridge -n $ns2 vlan add vid 4000 dev vx0"
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev br0.4000 ingress" 101 1
+ log_test $? 0 "Egress VNI translation - no PVID configured"
+
+ # Reconfigure the PVID and make sure packets are received again.
+ run_cmd "bridge -n $ns2 vlan add vid 4000 dev vx0 pvid"
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev br0.4000 ingress" 101 2
+ log_test $? 0 "Egress VNI translation - PVID reconfigured"
+}
+
+egress_vni_translation_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local mcast_grp=238.1.1.1
+ local plen=32
+ local proto="ipv4"
+ local grp=239.1.1.1
+ local src=192.0.2.129
+
+ echo
+ echo "Data path: Egress VNI translation - IPv4 overlay / IPv4
underlay"
+ echo
"----------------------------------------------------------------"
+
+ egress_vni_translation_common $ns1 $ns2 $mcast_grp $plen $proto $grp \
+ $src "mausezahn"
+}
+
+egress_vni_translation_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local mcast_grp=238.1.1.1
+ local plen=32
+ local proto="ipv6"
+ local grp=ff0e::1
+ local src=2001:db8:100::1
+
+ echo
+ echo "Data path: Egress VNI translation - IPv6 overlay / IPv4
underlay"
+ echo
"----------------------------------------------------------------"
+
+ egress_vni_translation_common $ns1 $ns2 $mcast_grp $plen $proto $grp \
+ $src "mausezahn -6"
+}
+
+egress_vni_translation_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local mcast_grp=ff0e::2
+ local plen=128
+ local proto="ipv4"
+ local grp=239.1.1.1
+ local src=192.0.2.129
+
+ echo
+ echo "Data path: Egress VNI translation - IPv4 overlay / IPv6
underlay"
+ echo
"----------------------------------------------------------------"
+
+ egress_vni_translation_common $ns1 $ns2 $mcast_grp $plen $proto $grp \
+ $src "mausezahn"
+}
+
+egress_vni_translation_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local mcast_grp=ff0e::2
+ local plen=128
+ local proto="ipv6"
+ local grp=ff0e::1
+ local src=2001:db8:100::1
+
+ echo
+ echo "Data path: Egress VNI translation - IPv6 overlay / IPv6
underlay"
+ echo
"----------------------------------------------------------------"
+
+ egress_vni_translation_common $ns1 $ns2 $mcast_grp $plen $proto $grp \
+ $src "mausezahn -6"
+}
+
+all_zeros_mdb_common()
+{
+ local ns1=$1; shift
+ local ns2=$1; shift
+ local vtep1_ip=$1; shift
+ local vtep2_ip=$1; shift
+ local vtep3_ip=$1; shift
+ local vtep4_ip=$1; shift
+ local plen=$1; shift
+ local ipv4_grp=239.1.1.1
+ local ipv4_unreg_grp=239.2.2.2
+ local ipv4_ll_grp=224.0.0.100
+ local ipv4_src=192.0.2.129
+ local ipv6_grp=ff0e::1
+ local ipv6_unreg_grp=ff0e::2
+ local ipv6_ll_grp=ff02::1
+ local ipv6_src=2001:db8:100::1
+
+ # Install all-zeros (catchall) MDB entries for IPv4 and IPv6 traffic
+ # and make sure they only forward unregistered IP multicast traffic
+ # which is not link-local. Also make sure that each entry only forwards
+ # traffic from the matching address family.
+
+ # Associate two different VTEPs with one all-zeros MDB entry: Two with
+ # the IPv4 entry (0.0.0.0) and another two with the IPv6 one (::).
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp 0.0.0.0
permanent dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp 0.0.0.0
permanent dst $vtep2_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp :: permanent dst
$vtep3_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp :: permanent dst
$vtep4_ip src_vni 10010"
+
+ # Associate one VTEP from each set with a regular MDB entry: One with
+ # an IPv4 entry and another with an IPv6 one.
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $ipv4_grp
permanent dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $ipv6_grp
permanent dst $vtep3_ip src_vni 10010"
+
+ # Add filters to match on decapsulated traffic in the second namespace.
+ run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto all flower enc_dst_ip $vtep1_ip action pass"
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102
proto all flower enc_dst_ip $vtep2_ip action pass"
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 103
proto all flower enc_dst_ip $vtep3_ip action pass"
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 104
proto all flower enc_dst_ip $vtep4_ip action pass"
+
+ # Configure the VTEP addresses in the second namespace to enable
+ # decapsulation.
+ run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+ run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+ run_cmd "ip -n $ns2 address replace $vtep3_ip/$plen dev lo"
+ run_cmd "ip -n $ns2 address replace $vtep4_ip/$plen dev lo"
+
+ # Send registered IPv4 multicast and make sure it only arrives to the
+ # first VTEP.
+ run_cmd "ip netns exec $ns1 mausezahn br0.10 -A $ipv4_src -B $ipv4_grp -t
udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Registered IPv4 multicast - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+ log_test $? 0 "Registered IPv4 multicast - second VTEP"
+
+ # Send unregistered IPv4 multicast that is not link-local and make sure
+ # it arrives to the first and second VTEPs.
+ run_cmd "ip netns exec $ns1 mausezahn br0.10 -A $ipv4_src -B
$ipv4_unreg_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+ log_test $? 0 "Unregistered IPv4 multicast - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Unregistered IPv4 multicast - second VTEP"
+
+ # Send IPv4 link-local multicast traffic and make sure it does not
+ # arrive to any VTEP.
+ run_cmd "ip netns exec $ns1 mausezahn br0.10 -A $ipv4_src -B $ipv4_ll_grp
-t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+ log_test $? 0 "Link-local IPv4 multicast - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Link-local IPv4 multicast - second VTEP"
+
+ # Send registered IPv4 multicast using a unicast MAC address and make
+ # sure it does not arrive to any VTEP.
+ run_cmd "ip netns exec $ns1 mausezahn br0.10 -a own -b 00:11:22:33:44:55
-A $ipv4_src -B $ipv4_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+ log_test $? 0 "Registered IPv4 multicast with a unicast MAC - first
VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Registered IPv4 multicast with a unicast MAC - second
VTEP"
+
+ # Send registered IPv4 multicast using a broadcast MAC address and make
+ # sure it does not arrive to any VTEP.
+ run_cmd "ip netns exec $ns1 mausezahn br0.10 -a own -b bcast -A $ipv4_src
-B $ipv4_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+ log_test $? 0 "Registered IPv4 multicast with a broadcast MAC - first
VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Registered IPv4 multicast with a broadcast MAC - second
VTEP"
+
+ # Make sure IPv4 traffic did not reach the VTEPs associated with
+ # IPv6 entries.
+ tc_check_packets "$ns2" "dev vx0 ingress" 103 0
+ log_test $? 0 "IPv4 traffic - third VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 104 0
+ log_test $? 0 "IPv4 traffic - fourth VTEP"
+
+ # Reset IPv4 filters before testing IPv6 traffic.
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto all flower enc_dst_ip $vtep1_ip action pass"
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102
proto all flower enc_dst_ip $vtep2_ip action pass"
+
+ # Send registered IPv6 multicast and make sure it only arrives to the
+ # third VTEP.
+ run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -A $ipv6_src -B $ipv6_grp
-t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 103 1
+ log_test $? 0 "Registered IPv6 multicast - third VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 104 0
+ log_test $? 0 "Registered IPv6 multicast - fourth VTEP"
+
+ # Send unregistered IPv6 multicast that is not link-local and make sure
+ # it arrives to the third and fourth VTEPs.
+ run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -A $ipv6_src -B
$ipv6_unreg_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 103 2
+ log_test $? 0 "Unregistered IPv6 multicast - third VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 104 1
+ log_test $? 0 "Unregistered IPv6 multicast - fourth VTEP"
+
+ # Send IPv6 link-local multicast traffic and make sure it does not
+ # arrive to any VTEP.
+ run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -A $ipv6_src -B
$ipv6_ll_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 103 2
+ log_test $? 0 "Link-local IPv6 multicast - third VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 104 1
+ log_test $? 0 "Link-local IPv6 multicast - fourth VTEP"
+
+ # Send registered IPv6 multicast using a unicast MAC address and make
+ # sure it does not arrive to any VTEP.
+ run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -a own -b
00:11:22:33:44:55 -A $ipv6_src -B $ipv6_grp -t udp sp=12345,dp=54321 -p 100 -c 1
-q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 103 2
+ log_test $? 0 "Registered IPv6 multicast with a unicast MAC - third
VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 104 1
+ log_test $? 0 "Registered IPv6 multicast with a unicast MAC - fourth
VTEP"
+
+ # Send registered IPv6 multicast using a broadcast MAC address and make
+ # sure it does not arrive to any VTEP.
+ run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -a own -b bcast -A
$ipv6_src -B $ipv6_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 103 2
+ log_test $? 0 "Registered IPv6 multicast with a broadcast MAC - third
VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 104 1
+ log_test $? 0 "Registered IPv6 multicast with a broadcast MAC - fourth
VTEP"
+
+ # Make sure IPv6 traffic did not reach the VTEPs associated with
+ # IPv4 entries.
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+ log_test $? 0 "IPv6 traffic - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+ log_test $? 0 "IPv6 traffic - second VTEP"
+}
+
+all_zeros_mdb_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local vtep1_ip=198.51.100.101
+ local vtep2_ip=198.51.100.102
+ local vtep3_ip=198.51.100.103
+ local vtep4_ip=198.51.100.104
+ local plen=32
+
+ echo
+ echo "Data path: All-zeros MDB entry - IPv4 underlay"
+ echo "----------------------------------------------"
+
+ all_zeros_mdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $vtep3_ip \
+ $vtep4_ip $plen
+}
+
+all_zeros_mdb_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local vtep3_ip=2001:db8:3000::1
+ local vtep4_ip=2001:db8:4000::1
+ local plen=128
+
+ echo
+ echo "Data path: All-zeros MDB entry - IPv6 underlay"
+ echo "----------------------------------------------"
+
+ all_zeros_mdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $vtep3_ip \
+ $vtep4_ip $plen
+}
+
+mdb_fdb_common()
+{
+ local ns1=$1; shift
+ local ns2=$1; shift
+ local vtep1_ip=$1; shift
+ local vtep2_ip=$1; shift
+ local plen=$1; shift
+ local proto=$1; shift
+ local grp=$1; shift
+ local src=$1; shift
+ local mz=$1; shift
+
+ # Install an MDB entry and an FDB entry and make sure that the FDB
+ # entry only forwards traffic that was not forwarded by the MDB.
+
+ # Associate the MDB entry with one VTEP and the FDB entry with another
+ # VTEP.
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent
dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 fdb add 00:00:00:00:00:00 dev vx0 self static dst
$vtep2_ip src_vni 10010"
+
+ # Add filters to match on decapsulated traffic in the second namespace.
+ run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101
proto $proto flower ip_proto udp dst_port 54321 enc_dst_ip $vtep1_ip action
pass"
+ run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102
proto $proto flower ip_proto udp dst_port 54321 enc_dst_ip $vtep2_ip action
pass"
+
+ # Configure the VTEP addresses in the second namespace to enable
+ # decapsulation.
+ run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+ run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+
+ # Send IP multicast traffic and make sure it is forwarded by the MDB
+ # and only arrives to the first VTEP.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "IP multicast - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+ log_test $? 0 "IP multicast - second VTEP"
+
+ # Send broadcast traffic and make sure it is forwarded by the FDB and
+ # only arrives to the second VTEP.
+ run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b bcast -A $src -B $grp -t
udp sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "Broadcast - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+ log_test $? 0 "Broadcast - second VTEP"
+
+ # Remove the MDB entry and make sure that IP multicast is now forwarded
+ # by the FDB to the second VTEP.
+ run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip
src_vni 10010"
+ run_cmd "ip netns exec $ns1 $mz br0.10 -A $src -B $grp -t udp
sp=12345,dp=54321 -p 100 -c 1 -q"
+ tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+ log_test $? 0 "IP multicast after removal - first VTEP"
+ tc_check_packets "$ns2" "dev vx0 ingress" 102 2
+ log_test $? 0 "IP multicast after removal - second VTEP"
+}
+
+mdb_fdb_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local plen=32
+ local proto="ipv4"
+ local grp=239.1.1.1
+ local src=192.0.2.129
+
+ echo
+ echo "Data path: MDB with FDB - IPv4 overlay / IPv4 underlay"
+ echo "------------------------------------------------------"
+
+ mdb_fdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $proto $grp $src \
+ "mausezahn"
+}
+
+mdb_fdb_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local ns2=ns2_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local plen=32
+ local proto="ipv6"
+ local grp=ff0e::1
+ local src=2001:db8:100::1
+
+ echo
+ echo "Data path: MDB with FDB - IPv6 overlay / IPv4 underlay"
+ echo "------------------------------------------------------"
+
+ mdb_fdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $proto $grp $src \
+ "mausezahn -6"
+}
+
+mdb_fdb_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local plen=128
+ local proto="ipv4"
+ local grp=239.1.1.1
+ local src=192.0.2.129
+
+ echo
+ echo "Data path: MDB with FDB - IPv4 overlay / IPv6 underlay"
+ echo "------------------------------------------------------"
+
+ mdb_fdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $proto $grp $src \
+ "mausezahn"
+}
+
+mdb_fdb_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local ns2=ns2_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local plen=128
+ local proto="ipv6"
+ local grp=ff0e::1
+ local src=2001:db8:100::1
+
+ echo
+ echo "Data path: MDB with FDB - IPv6 overlay / IPv6 underlay"
+ echo "------------------------------------------------------"
+
+ mdb_fdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $proto $grp $src \
+ "mausezahn -6"
+}
+
+mdb_grp1_loop()
+{
+ local ns1=$1; shift
+ local vtep1_ip=$1; shift
+ local grp1=$1; shift
+
+ while true; do
+ bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp1 dst $vtep1_ip src_vni 10010
+ bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp1 permanent dst $vtep1_ip
src_vni 10010
+ done >/dev/null 2>&1
+}
+
+mdb_grp2_loop()
+{
+ local ns1=$1; shift
+ local vtep1_ip=$1; shift
+ local vtep2_ip=$1; shift
+ local grp2=$1; shift
+
+ while true; do
+ bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp2 dst $vtep1_ip src_vni 10010
+ bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp2 permanent dst $vtep1_ip
src_vni 10010
+ bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp2 permanent dst $vtep2_ip
src_vni 10010
+ done >/dev/null 2>&1
+}
+
+mdb_torture_common()
+{
+ local ns1=$1; shift
+ local vtep1_ip=$1; shift
+ local vtep2_ip=$1; shift
+ local grp1=$1; shift
+ local grp2=$1; shift
+ local src=$1; shift
+ local mz=$1; shift
+ local pid1
+ local pid2
+ local pid3
+ local pid4
+
+ # Continuously send two streams that are forwarded by two different MDB
+ # entries. The first entry will be added and deleted in a loop. This
+ # allows us to test that the data path does not use freed MDB entry
+ # memory. The second entry will have two remotes, one that is added and
+ # deleted in a loop and another that is replaced in a loop. This allows
+ # us to test that the data path does not use freed remote entry memory.
+ # The test is considered successful if nothing crashed.
+
+ # Create the MDB entries that will be continuously deleted / replaced.
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp1 permanent
dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp2 permanent
dst $vtep1_ip src_vni 10010"
+ run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp2 permanent
dst $vtep2_ip src_vni 10010"
+
+ mdb_grp1_loop $ns1 $vtep1_ip $grp1 &
+ pid1=$!
+ mdb_grp2_loop $ns1 $vtep1_ip $vtep2_ip $grp2 &
+ pid2=$!
+ ip netns exec $ns1 $mz br0.10 -A $src -B $grp1 -t udp sp=12345,dp=54321 -p 100
-c 0 -q &
+ pid3=$!
+ ip netns exec $ns1 $mz br0.10 -A $src -B $grp2 -t udp sp=12345,dp=54321 -p 100
-c 0 -q &
+ pid4=$!
+
+ sleep 30
+ kill -9 $pid1 $pid2 $pid3 $pid4
+ wait $pid1 $pid2 $pid3 $pid4 2>/dev/null
+
+ log_test 0 0 "Torture test"
+}
+
+mdb_torture_ipv4_ipv4()
+{
+ local ns1=ns1_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local grp1=239.1.1.1
+ local grp2=239.2.2.2
+ local src=192.0.2.129
+
+ echo
+ echo "Data path: MDB torture test - IPv4 overlay / IPv4 underlay"
+ echo "----------------------------------------------------------"
+
+ mdb_torture_common $ns1 $vtep1_ip $vtep2_ip $grp1 $grp2 $src \
+ "mausezahn"
+}
+
+mdb_torture_ipv6_ipv4()
+{
+ local ns1=ns1_v4
+ local vtep1_ip=198.51.100.100
+ local vtep2_ip=198.51.100.200
+ local grp1=ff0e::1
+ local grp2=ff0e::2
+ local src=2001:db8:100::1
+
+ echo
+ echo "Data path: MDB torture test - IPv6 overlay / IPv4 underlay"
+ echo "----------------------------------------------------------"
+
+ mdb_torture_common $ns1 $vtep1_ip $vtep2_ip $grp1 $grp2 $src \
+ "mausezahn -6"
+}
+
+mdb_torture_ipv4_ipv6()
+{
+ local ns1=ns1_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local grp1=239.1.1.1
+ local grp2=239.2.2.2
+ local src=192.0.2.129
+
+ echo
+ echo "Data path: MDB torture test - IPv4 overlay / IPv6 underlay"
+ echo "----------------------------------------------------------"
+
+ mdb_torture_common $ns1 $vtep1_ip $vtep2_ip $grp1 $grp2 $src \
+ "mausezahn"
+}
+
+mdb_torture_ipv6_ipv6()
+{
+ local ns1=ns1_v6
+ local vtep1_ip=2001:db8:1000::1
+ local vtep2_ip=2001:db8:2000::1
+ local grp1=ff0e::1
+ local grp2=ff0e::2
+ local src=2001:db8:100::1
+
+ echo
+ echo "Data path: MDB torture test - IPv6 overlay / IPv6 underlay"
+ echo "----------------------------------------------------------"
+
+ mdb_torture_common $ns1 $vtep1_ip $vtep2_ip $grp1 $grp2 $src \
+ "mausezahn -6"
+}
+
+################################################################################
+# Usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -t <test> Test(s) to run (default: all)
+ (options: $TESTS)
+ -c Control path tests only
+ -d Data path tests only
+ -p Pause on fail
+ -P Pause after each test before cleanup
+ -v Verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# Main
+
+trap cleanup EXIT
+
+while getopts ":t:cdpPvh" opt; do
+ case $opt in
+ t) TESTS=$OPTARG;;
+ c) TESTS=${CONTROL_PATH_TESTS};;
+ d) TESTS=${DATA_PATH_TESTS};;
+ p) PAUSE_ON_FAIL=yes;;
+ P) PAUSE=yes;;
+ v) VERBOSE=$(($VERBOSE + 1));;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+# Make sure we don't pause twice.
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v bridge)" ]; then
+ echo "SKIP: Could not run test without bridge tool"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v mausezahn)" ]; then
+ echo "SKIP: Could not run test without mausezahn tool"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v jq)" ]; then
+ echo "SKIP: Could not run test without jq tool"
+ exit $ksft_skip
+fi
+
+bridge mdb help 2>&1 | grep -q "src_vni"
+if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 bridge too old, missing VXLAN MDB support"
+ exit $ksft_skip
+fi
+
+# Start clean.
+cleanup
+
+for t in $TESTS
+do
+ setup; $t; cleanup;
+done
+
+if [ "$TESTS" != "none" ]; then
+ printf "\nTests passed: %3d\n" ${nsuccess}
+ printf "Tests failed: %3d\n" ${nfail}
+fi
+
+exit $ret
--
2.37.3
patchwork-bot+netdevbpf at kernel.org
2023-Mar-17 08:30 UTC
[Bridge] [PATCH net-next v2 00/11] vxlan: Add MDB support
Hello: This series was applied to netdev/net-next.git (main) by David S. Miller <davem at davemloft.net>: On Wed, 15 Mar 2023 15:11:44 +0200 you wrote:> tl;dr > ====> > This patchset implements MDB support in the VXLAN driver, allowing it to > selectively forward IP multicast traffic to VTEPs with interested > receivers instead of flooding it to all the VTEPs as BUM. The motivating > use case is intra and inter subnet multicast forwarding using EVPN > [1][2], which means that MDB entries are only installed by the user > space control plane and no snooping is implemented, thereby avoiding a > lot of unnecessary complexity in the kernel. > > [...]Here is the summary with links: - [net-next,v2,01/11] net: Add MDB net device operations https://git.kernel.org/netdev/net-next/c/8c44fa12c8fa - [net-next,v2,02/11] bridge: mcast: Implement MDB net device operations https://git.kernel.org/netdev/net-next/c/c009de1061b5 - [net-next,v2,03/11] rtnetlink: bridge: mcast: Move MDB handlers out of bridge driver https://git.kernel.org/netdev/net-next/c/cc7f5022f810 - [net-next,v2,04/11] rtnetlink: bridge: mcast: Relax group address validation in common code https://git.kernel.org/netdev/net-next/c/da654c80a0eb - [net-next,v2,05/11] vxlan: Move address helpers to private headers https://git.kernel.org/netdev/net-next/c/f307c8bf37a3 - [net-next,v2,06/11] vxlan: Expose vxlan_xmit_one() https://git.kernel.org/netdev/net-next/c/6ab271aaad25 - [net-next,v2,07/11] vxlan: mdb: Add MDB control path support https://git.kernel.org/netdev/net-next/c/a3a48de5eade - [net-next,v2,08/11] vxlan: mdb: Add an internal flag to indicate MDB usage https://git.kernel.org/netdev/net-next/c/bc6c6b013ffe - [net-next,v2,09/11] vxlan: Add MDB data path support https://git.kernel.org/netdev/net-next/c/0f83e69f44bf - [net-next,v2,10/11] vxlan: Enable MDB support https://git.kernel.org/netdev/net-next/c/08f876a7d79e - [net-next,v2,11/11] selftests: net: Add VXLAN MDB test https://git.kernel.org/netdev/net-next/c/62199e3f1658 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html