lkml.org 
[lkml]   [2020]   [Sep]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH RFC 5/7] bridge: cfm: Netlink Interface.
Date
This is the implementation of CFM netlink configuration
and status information interface.

Add new nested netlink attributes. These attributes are used by the
user space to create/delete/configure CFM instances and get status.
Also they are used by the kernel to notify the user space when changes
in any status happens.

SETLINK:
IFLA_BRIDGE_CFM:
Indicate that the following attributes are CFM.

IFLA_BRIDGE_CFM_MEP_CREATE:
This indicate that a MEP instance must be created.
IFLA_BRIDGE_CFM_MEP_DELETE:
This indicate that a MEP instance must be deleted.
IFLA_BRIDGE_CFM_MEP_CONFIG:
This indicate that a MEP instance must be configured.
IFLA_BRIDGE_CFM_CC_CONFIG:
This indicate that a MEP instance Continuity Check (CC)
functionality must be configured.
IFLA_BRIDGE_CFM_CC_PEER_MEP_ADD:
This indicate that a CC Peer MEP must be added.
IFLA_BRIDGE_CFM_CC_PEER_MEP_REMOVE:
This indicate that a CC Peer MEP must be removed.
IFLA_BRIDGE_CFM_CC_CCM_TX:
This indicate that the CC transmitted CCM PDU must be configured.
IFLA_BRIDGE_CFM_CC_RDI:
This indicate that the CC transmitted CCM PDU RDI must be
configured.

GETLINK:
Request filter RTEXT_FILTER_CFM_CONFIG:
Indicating that CFM configuration information must be delivered.

IFLA_BRIDGE_CFM:
Points to the CFM information.

IFLA_BRIDGE_CFM_MEP_CREATE_INFO:
This indicate that MEP instance create parameters are following.
IFLA_BRIDGE_CFM_MEP_CONFIG_INFO:
This indicate that MEP instance config parameters are following.
IFLA_BRIDGE_CFM_CC_CONFIG_INFO:
This indicate that MEP instance CC functionality
parameters are following.
IFLA_BRIDGE_CFM_CC_RDI_INFO:
This indicate that CC transmitted CCM PDU RDI
parameters are following.
IFLA_BRIDGE_CFM_CC_CCM_TX_INFO:
This indicate that CC transmitted CCM PDU parameters are
following.
IFLA_BRIDGE_CFM_CC_PEER_MEP_INFO:
This indicate that the added peer MEP IDs are following.

Request filter RTEXT_FILTER_CFM_STATUS:
Indicating that CFM status information must be delivered.

IFLA_BRIDGE_CFM:
Points to the CFM information.

IFLA_BRIDGE_CFM_MEP_STATUS_INFO:
This indicate that the MEP instance status are following.
IFLA_BRIDGE_CFM_CC_PEER_STATUS_INFO:
This indicate that the peer MEP status are following.

CFM nested attribute has the following attributes in next level.

SETLINK and GETLINK RTEXT_FILTER_CFM_CONFIG:
IFLA_BRIDGE_CFM_MEP_CREATE_INSTANCE:
The created MEP instance number.
The type is u32.
IFLA_BRIDGE_CFM_MEP_CREATE_DOMAIN:
The created MEP domain.
The type is u32 (br_cfm_domain).
It must be BR_CFM_PORT.
This means that CFM frames are transmitted and received
directly on the port - untagged. Not in a VLAN.
IFLA_BRIDGE_CFM_MEP_CREATE_DIRECTION:
The created MEP direction.
The type is u32 (br_cfm_mep_direction).
It must be BR_CFM_MEP_DIRECTION_DOWN.
This means that CFM frames are transmitted and received on
the port. Not in the bridge.
IFLA_BRIDGE_CFM_MEP_CREATE_IFINDEX:
The created MEP residence port ifindex.
The type is u32 (ifindex).

IFLA_BRIDGE_CFM_MEP_DELETE_INSTANCE:
The deleted MEP instance number.
The type is u32.

IFLA_BRIDGE_CFM_MEP_CONFIG_INSTANCE:
The configured MEP instance number.
The type is u32.
IFLA_BRIDGE_CFM_MEP_CONFIG_UNICAST_MAC:
The configured MEP unicast MAC address.
The type is 6*u8 (array).
This is used as SMAC in all transmitted CFM frames.
IFLA_BRIDGE_CFM_MEP_CONFIG_MDLEVEL:
The configured MEP unicast MD level.
The type is u32.
It must be in the range 1-7.
No CFM frames are passing through this MEP on lower levels.
IFLA_BRIDGE_CFM_MEP_CONFIG_MEPID:
The configured MEP ID.
The type is u32.
It must be in the range 0-0x1FFF.
This MEP ID is inserted in any transmitted CCM frame.

IFLA_BRIDGE_CFM_CC_CONFIG_INSTANCE:
The configured MEP instance number.
The type is u32.
IFLA_BRIDGE_CFM_CC_CONFIG_ENABLE:
The Continuity Check (CC) functionality is enabled or disabled.
The type is u32 (bool).
IFLA_BRIDGE_CFM_CC_CONFIG_EXP_INTERVAL:
The CC expected receive interval of CCM frames.
The type is u32 (br_cfm_ccm_interval).
This is also the transmission interval of CCM frames when enabled.
IFLA_BRIDGE_CFM_CC_CONFIG_EXP_MAID:
The CC expected receive MAID in CCM frames.
The type is CFM_MAID_LENGTH*u8.
This is MAID is also inserted in transmitted CCM frames.

IFLA_BRIDGE_CFM_CC_PEER_MEP_INSTANCE:
The configured MEP instance number.
The type is u32.
IFLA_BRIDGE_CFM_CC_PEER_MEPID:
The CC Peer MEP ID added.
The type is u32.
When a Peer MEP ID is added and CC is enabled it is expected to
receive CCM frames from that Peer MEP.

IFLA_BRIDGE_CFM_CC_RDI_INSTANCE:
The configured MEP instance number.
The type is u32.
IFLA_BRIDGE_CFM_CC_RDI_RDI:
The RDI that is inserted in transmitted CCM PDU.
The type is u32 (bool).

IFLA_BRIDGE_CFM_CC_CCM_TX_INSTANCE:
The configured MEP instance number.
The type is u32.
IFLA_BRIDGE_CFM_CC_CCM_TX_DMAC:
The transmitted CCM frame destination MAC address.
The type is 6*u8 (array).
This is used as DMAC in all transmitted CFM frames.
IFLA_BRIDGE_CFM_CC_CCM_TX_SEQ_NO_UPDATE:
The transmitted CCM frame update (increment) of sequence
number is enabled or disabled.
The type is u32 (bool).
IFLA_BRIDGE_CFM_CC_CCM_TX_PERIOD:
The period of time where CCM frame are transmitted.
The type is u32.
The time is given in seconds. SETLINK IFLA_BRIDGE_CFM_CC_CCM_TX
must be done before timeout to keep transmission alive.
When period is zero any ongoing CCM frame transmission
will be stopped.
IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV:
The transmitted CCM frame update with Interface Status TLV
is enabled or disabled.
The type is u32 (bool).
IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV_VALUE:
The transmitted Interface Status TLV value field.
The type is u8.
IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV:
The transmitted CCM frame update with Port Status TLV is enabled
or disabled.
The type is u32 (bool).
IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV_VALUE:
The transmitted Port Status TLV value field.
The type is u8.

GETLINK RTEXT_FILTER_CFM_STATUS:
IFLA_BRIDGE_CFM_MEP_STATUS_INSTANCE:
The MEP instance number of the delivered status.
The type is u32.
IFLA_BRIDGE_CFM_MEP_STATUS_OPCODE_UNEXP_SEEN:
The MEP instance received CFM PDU with unexpected Opcode.
The type is u32 (bool).
IFLA_BRIDGE_CFM_MEP_STATUS_VERSION_UNEXP_SEEN:
The MEP instance received CFM PDU with unexpected version.
The type is u32 (bool).
IFLA_BRIDGE_CFM_MEP_STATUS_RX_LEVEL_LOW_SEEN:
The MEP instance received CCM PDU with MD level lower than
configured level. This frame is discarded.
The type is u32 (bool).

IFLA_BRIDGE_CFM_CC_PEER_STATUS_INSTANCE:
The MEP instance number of the delivered status.
The type is u32.
IFLA_BRIDGE_CFM_CC_PEER_STATUS_PEER_MEPID:
The added Peer MEP ID of the delivered status.
The type is u32.
IFLA_BRIDGE_CFM_CC_PEER_STATUS_CCM_DEFECT:
The CCM defect status.
The type is u32 (bool).
True means no CCM frame is received for 3.25 intervals.
IFLA_BRIDGE_CFM_CC_CONFIG_EXP_INTERVAL.
IFLA_BRIDGE_CFM_CC_PEER_STATUS_RDI:
The last received CCM PDU RDI.
The type is u32 (bool).
IFLA_BRIDGE_CFM_CC_PEER_STATUS_PORT_TLV_VALUE:
The last received CCM PDU Port Status TLV value field.
The type is u8.
IFLA_BRIDGE_CFM_CC_PEER_STATUS_IF_TLV_VALUE:
The last received CCM PDU Interface Status TLV value field.
The type is u8.
IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEEN:
A CCM frame has been received from Peer MEP.
The type is u32 (bool).
This is cleared after GETLINK IFLA_BRIDGE_CFM_CC_PEER_STATUS_INFO.
IFLA_BRIDGE_CFM_CC_PEER_STATUS_TLV_SEEN:
A CCM frame with TLV has been received from Peer MEP.
The type is u32 (bool).
This is cleared after GETLINK IFLA_BRIDGE_CFM_CC_PEER_STATUS_INFO.
IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEQ_UNEXP_SEEN:
A CCM frame with unexpected sequence number has been received
from Peer MEP.
The type is u32 (bool).
When a sequence number is not one higher than previously received
then it is unexpected.
This is cleared after GETLINK IFLA_BRIDGE_CFM_CC_PEER_STATUS_INFO.

Signed-off-by: Henrik Bjoernlund <henrik.bjoernlund@microchip.com>
---
include/uapi/linux/if_bridge.h | 125 ++++++
include/uapi/linux/rtnetlink.h | 2 +
net/bridge/Makefile | 2 +-
net/bridge/br_cfm_netlink.c | 684 +++++++++++++++++++++++++++++++++
net/bridge/br_netlink.c | 52 ++-
net/bridge/br_private.h | 21 +
6 files changed, 884 insertions(+), 2 deletions(-)
create mode 100644 net/bridge/br_cfm_netlink.c

diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index c1227aecd38f..4e40c04d73b8 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -121,6 +121,7 @@ enum {
IFLA_BRIDGE_VLAN_INFO,
IFLA_BRIDGE_VLAN_TUNNEL_INFO,
IFLA_BRIDGE_MRP,
+ IFLA_BRIDGE_CFM,
__IFLA_BRIDGE_MAX,
};
#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
@@ -328,6 +329,130 @@ struct br_mrp_start_in_test {
__u16 in_id;
};

+enum {
+ IFLA_BRIDGE_CFM_UNSPEC,
+ IFLA_BRIDGE_CFM_MEP_CREATE,
+ IFLA_BRIDGE_CFM_MEP_DELETE,
+ IFLA_BRIDGE_CFM_MEP_CONFIG,
+ IFLA_BRIDGE_CFM_CC_CONFIG,
+ IFLA_BRIDGE_CFM_CC_PEER_MEP_ADD,
+ IFLA_BRIDGE_CFM_CC_PEER_MEP_REMOVE,
+ IFLA_BRIDGE_CFM_CC_RDI,
+ IFLA_BRIDGE_CFM_CC_CCM_TX,
+ IFLA_BRIDGE_CFM_MEP_CREATE_INFO,
+ IFLA_BRIDGE_CFM_MEP_CONFIG_INFO,
+ IFLA_BRIDGE_CFM_CC_CONFIG_INFO,
+ IFLA_BRIDGE_CFM_CC_RDI_INFO,
+ IFLA_BRIDGE_CFM_CC_CCM_TX_INFO,
+ IFLA_BRIDGE_CFM_CC_PEER_MEP_INFO,
+ IFLA_BRIDGE_CFM_MEP_STATUS_INFO,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_INFO,
+ __IFLA_BRIDGE_CFM_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_MAX (__IFLA_BRIDGE_CFM_MAX - 1)
+
+enum {
+ IFLA_BRIDGE_CFM_MEP_CREATE_UNSPEC,
+ IFLA_BRIDGE_CFM_MEP_CREATE_INSTANCE,
+ IFLA_BRIDGE_CFM_MEP_CREATE_DOMAIN,
+ IFLA_BRIDGE_CFM_MEP_CREATE_DIRECTION,
+ IFLA_BRIDGE_CFM_MEP_CREATE_IFINDEX,
+ __IFLA_BRIDGE_CFM_MEP_CREATE_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_MEP_CREATE_MAX (__IFLA_BRIDGE_CFM_MEP_CREATE_MAX - 1)
+
+enum {
+ IFLA_BRIDGE_CFM_MEP_DELETE_UNSPEC,
+ IFLA_BRIDGE_CFM_MEP_DELETE_INSTANCE,
+ __IFLA_BRIDGE_CFM_MEP_DELETE_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_MEP_DELETE_MAX (__IFLA_BRIDGE_CFM_MEP_DELETE_MAX - 1)
+
+enum {
+ IFLA_BRIDGE_CFM_MEP_CONFIG_UNSPEC,
+ IFLA_BRIDGE_CFM_MEP_CONFIG_INSTANCE,
+ IFLA_BRIDGE_CFM_MEP_CONFIG_UNICAST_MAC,
+ IFLA_BRIDGE_CFM_MEP_CONFIG_MDLEVEL,
+ IFLA_BRIDGE_CFM_MEP_CONFIG_MEPID,
+ __IFLA_BRIDGE_CFM_MEP_CONFIG_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_MEP_CONFIG_MAX (__IFLA_BRIDGE_CFM_MEP_CONFIG_MAX - 1)
+
+enum {
+ IFLA_BRIDGE_CFM_MEP_STATUS_UNSPEC,
+ IFLA_BRIDGE_CFM_MEP_STATUS_INSTANCE,
+ IFLA_BRIDGE_CFM_MEP_STATUS_OPCODE_UNEXP_SEEN,
+ IFLA_BRIDGE_CFM_MEP_STATUS_VERSION_UNEXP_SEEN,
+ IFLA_BRIDGE_CFM_MEP_STATUS_RX_LEVEL_LOW_SEEN,
+ __IFLA_BRIDGE_CFM_MEP_STATUS_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_MEP_STATUS_MAX (__IFLA_BRIDGE_CFM_MEP_STATUS_MAX - 1)
+
+enum {
+ IFLA_BRIDGE_CFM_CC_CONFIG_UNSPEC,
+ IFLA_BRIDGE_CFM_CC_CONFIG_INSTANCE,
+ IFLA_BRIDGE_CFM_CC_CONFIG_ENABLE,
+ IFLA_BRIDGE_CFM_CC_CONFIG_EXP_INTERVAL,
+ IFLA_BRIDGE_CFM_CC_CONFIG_EXP_MAID,
+ __IFLA_BRIDGE_CFM_CC_CONFIG_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_CC_CONFIG_MAX (__IFLA_BRIDGE_CFM_CC_CONFIG_MAX - 1)
+
+enum {
+ IFLA_BRIDGE_CFM_CC_PEER_MEP_UNSPEC,
+ IFLA_BRIDGE_CFM_CC_PEER_MEP_INSTANCE,
+ IFLA_BRIDGE_CFM_CC_PEER_MEPID,
+ __IFLA_BRIDGE_CFM_CC_PEER_MEP_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_CC_PEER_MEP_MAX (__IFLA_BRIDGE_CFM_CC_PEER_MEP_MAX - 1)
+
+enum {
+ IFLA_BRIDGE_CFM_CC_RDI_UNSPEC,
+ IFLA_BRIDGE_CFM_CC_RDI_INSTANCE,
+ IFLA_BRIDGE_CFM_CC_RDI_RDI,
+ __IFLA_BRIDGE_CFM_CC_RDI_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_CC_RDI_MAX (__IFLA_BRIDGE_CFM_CC_RDI_MAX - 1)
+
+enum {
+ IFLA_BRIDGE_CFM_CC_CCM_TX_UNSPEC,
+ IFLA_BRIDGE_CFM_CC_CCM_TX_INSTANCE,
+ IFLA_BRIDGE_CFM_CC_CCM_TX_DMAC,
+ IFLA_BRIDGE_CFM_CC_CCM_TX_SEQ_NO_UPDATE,
+ IFLA_BRIDGE_CFM_CC_CCM_TX_PERIOD,
+ IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV,
+ IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV_VALUE,
+ IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV,
+ IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV_VALUE,
+ __IFLA_BRIDGE_CFM_CC_CCM_TX_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_CC_CCM_TX_MAX (__IFLA_BRIDGE_CFM_CC_CCM_TX_MAX - 1)
+
+enum {
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_UNSPEC,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_INSTANCE,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_PEER_MEPID,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_CCM_DEFECT,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_RDI,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_PORT_TLV_VALUE,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_IF_TLV_VALUE,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEEN,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_TLV_SEEN,
+ IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEQ_UNEXP_SEEN,
+ __IFLA_BRIDGE_CFM_CC_PEER_STATUS_MAX,
+};
+
+#define IFLA_BRIDGE_CFM_CC_PEER_STATUS_MAX (__IFLA_BRIDGE_CFM_CC_PEER_STATUS_MAX - 1)
+
struct bridge_stp_xstats {
__u64 transition_blk;
__u64 transition_fwd;
diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
index 9b814c92de12..fdd408f6a5d2 100644
--- a/include/uapi/linux/rtnetlink.h
+++ b/include/uapi/linux/rtnetlink.h
@@ -779,6 +779,8 @@ enum {
#define RTEXT_FILTER_BRVLAN_COMPRESSED (1 << 2)
#define RTEXT_FILTER_SKIP_STATS (1 << 3)
#define RTEXT_FILTER_MRP (1 << 4)
+#define RTEXT_FILTER_CFM_CONFIG (1 << 5)
+#define RTEXT_FILTER_CFM_STATUS (1 << 6)

/* End of information exported to user level */

diff --git a/net/bridge/Makefile b/net/bridge/Makefile
index ddc0a9192348..4702702a74d3 100644
--- a/net/bridge/Makefile
+++ b/net/bridge/Makefile
@@ -28,4 +28,4 @@ obj-$(CONFIG_NETFILTER) += netfilter/

bridge-$(CONFIG_BRIDGE_MRP) += br_mrp_switchdev.o br_mrp.o br_mrp_netlink.o

-bridge-$(CONFIG_BRIDGE_CFM) += br_cfm.o
+bridge-$(CONFIG_BRIDGE_CFM) += br_cfm.o br_cfm_netlink.o
diff --git a/net/bridge/br_cfm_netlink.c b/net/bridge/br_cfm_netlink.c
new file mode 100644
index 000000000000..4e39aab1cd0b
--- /dev/null
+++ b/net/bridge/br_cfm_netlink.c
@@ -0,0 +1,684 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <net/genetlink.h>
+
+#include "br_private.h"
+#include "br_private_cfm.h"
+
+static inline struct mac_addr nla_get_mac(const struct nlattr *nla)
+{
+ struct mac_addr mac;
+
+ nla_memcpy(&mac.addr, nla, sizeof(mac.addr));
+
+ return mac;
+}
+
+static inline struct br_cfm_maid nla_get_maid(const struct nlattr *nla)
+{
+ struct br_cfm_maid maid;
+
+ nla_memcpy(&maid.data, nla, sizeof(maid.data));
+
+ return maid;
+}
+
+static inline int nla_put_u64(struct sk_buff *skb, int attrtype, u64 value)
+{
+ u64 tmp = value;
+
+ return nla_put(skb, attrtype, sizeof(u64), &tmp);
+}
+
+static const struct nla_policy
+br_cfm_policy[IFLA_BRIDGE_CFM_MAX + 1] = {
+ [IFLA_BRIDGE_CFM_UNSPEC] = { .type = NLA_REJECT },
+ [IFLA_BRIDGE_CFM_MEP_CREATE] = { .type = NLA_NESTED },
+ [IFLA_BRIDGE_CFM_MEP_DELETE] = { .type = NLA_NESTED },
+ [IFLA_BRIDGE_CFM_MEP_CONFIG] = { .type = NLA_NESTED },
+ [IFLA_BRIDGE_CFM_CC_CONFIG] = { .type = NLA_NESTED },
+ [IFLA_BRIDGE_CFM_CC_PEER_MEP_ADD] = { .type = NLA_NESTED },
+ [IFLA_BRIDGE_CFM_CC_PEER_MEP_REMOVE] = { .type = NLA_NESTED },
+ [IFLA_BRIDGE_CFM_CC_RDI] = { .type = NLA_NESTED },
+ [IFLA_BRIDGE_CFM_CC_CCM_TX] = { .type = NLA_NESTED },
+};
+
+static const struct nla_policy
+br_cfm_mep_create_policy[IFLA_BRIDGE_CFM_MEP_CREATE_MAX + 1] = {
+ [IFLA_BRIDGE_CFM_MEP_CREATE_UNSPEC] = { .type = NLA_REJECT },
+ [IFLA_BRIDGE_CFM_MEP_CREATE_INSTANCE] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_MEP_CREATE_DOMAIN] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_MEP_CREATE_DIRECTION] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_MEP_CREATE_IFINDEX] = { .type = NLA_U32 },
+};
+
+static const struct nla_policy
+br_cfm_mep_delete_policy[IFLA_BRIDGE_CFM_MEP_DELETE_MAX + 1] = {
+ [IFLA_BRIDGE_CFM_MEP_DELETE_UNSPEC] = { .type = NLA_REJECT },
+ [IFLA_BRIDGE_CFM_MEP_DELETE_INSTANCE] = { .type = NLA_U32 },
+};
+
+static const struct nla_policy
+br_cfm_mep_config_policy[IFLA_BRIDGE_CFM_MEP_CONFIG_MAX + 1] = {
+ [IFLA_BRIDGE_CFM_MEP_CONFIG_UNSPEC] = { .type = NLA_REJECT },
+ [IFLA_BRIDGE_CFM_MEP_CONFIG_INSTANCE] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_MEP_CONFIG_UNICAST_MAC] = NLA_POLICY_ETH_ADDR,
+ [IFLA_BRIDGE_CFM_MEP_CONFIG_MDLEVEL] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_MEP_CONFIG_MEPID] = { .type = NLA_U32 },
+};
+
+static const struct nla_policy
+br_cfm_cc_config_policy[IFLA_BRIDGE_CFM_CC_CONFIG_MAX + 1] = {
+ [IFLA_BRIDGE_CFM_CC_CONFIG_UNSPEC] = { .type = NLA_REJECT },
+ [IFLA_BRIDGE_CFM_CC_CONFIG_INSTANCE] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_CONFIG_ENABLE] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_CONFIG_EXP_INTERVAL] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_CONFIG_EXP_MAID] = {
+ .type = NLA_BINARY, .len = CFM_MAID_LENGTH },
+};
+
+static const struct nla_policy
+br_cfm_cc_peer_mep_policy[IFLA_BRIDGE_CFM_CC_PEER_MEP_MAX + 1] = {
+ [IFLA_BRIDGE_CFM_CC_PEER_MEP_UNSPEC] = { .type = NLA_REJECT },
+ [IFLA_BRIDGE_CFM_CC_PEER_MEP_INSTANCE] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_PEER_MEPID] = { .type = NLA_U32 },
+};
+
+static const struct nla_policy
+br_cfm_cc_rdi_policy[IFLA_BRIDGE_CFM_CC_RDI_MAX + 1] = {
+ [IFLA_BRIDGE_CFM_CC_RDI_UNSPEC] = { .type = NLA_REJECT },
+ [IFLA_BRIDGE_CFM_CC_RDI_INSTANCE] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_RDI_RDI] = { .type = NLA_U32 },
+};
+
+static const struct nla_policy
+br_cfm_cc_ccm_tx_policy[IFLA_BRIDGE_CFM_CC_CCM_TX_MAX + 1] = {
+ [IFLA_BRIDGE_CFM_CC_CCM_TX_UNSPEC] = { .type = NLA_REJECT },
+ [IFLA_BRIDGE_CFM_CC_CCM_TX_INSTANCE] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_CCM_TX_DMAC] = NLA_POLICY_ETH_ADDR,
+ [IFLA_BRIDGE_CFM_CC_CCM_TX_SEQ_NO_UPDATE] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_CCM_TX_PERIOD] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV_VALUE] = { .type = NLA_U8 },
+ [IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV] = { .type = NLA_U32 },
+ [IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV_VALUE] = { .type = NLA_U8 },
+};
+
+static int br_mep_create_parse(struct net_bridge *br, struct nlattr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[IFLA_BRIDGE_CFM_MEP_CREATE_MAX + 1];
+ struct br_cfm_mep_create create;
+ u32 instance;
+ int err;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_CFM_MEP_CREATE_MAX, attr,
+ br_cfm_mep_create_policy, extack);
+ if (err)
+ return err;
+
+ if (!tb[IFLA_BRIDGE_CFM_MEP_CREATE_INSTANCE] ||
+ !tb[IFLA_BRIDGE_CFM_MEP_CREATE_DOMAIN] ||
+ !tb[IFLA_BRIDGE_CFM_MEP_CREATE_DIRECTION] ||
+ !tb[IFLA_BRIDGE_CFM_MEP_CREATE_IFINDEX]) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Missing attribute: INSTANCE or DOMAIN or DIRECTION or VID or IFINDEX");
+ return -EINVAL;
+ }
+
+ memset(&create, 0, sizeof(create));
+
+ instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CREATE_INSTANCE]);
+ create.domain = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CREATE_DOMAIN]);
+ create.direction = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CREATE_DIRECTION]);
+ create.ifindex = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CREATE_IFINDEX]);
+
+ return br_cfm_mep_create(br, instance, &create, extack);
+}
+
+static int br_mep_delete_parse(struct net_bridge *br, struct nlattr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[IFLA_BRIDGE_CFM_MEP_DELETE_MAX + 1];
+ u32 instance;
+ int err;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_CFM_MEP_DELETE_MAX, attr,
+ br_cfm_mep_delete_policy, extack);
+ if (err)
+ return err;
+
+ if (!tb[IFLA_BRIDGE_CFM_MEP_CREATE_INSTANCE]) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Missing attribute: INSTANCE");
+ return -EINVAL;
+ }
+
+ instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CREATE_INSTANCE]);
+
+ return br_cfm_mep_delete(br, instance, extack);
+}
+
+static int br_mep_config_parse(struct net_bridge *br, struct nlattr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[IFLA_BRIDGE_CFM_MEP_CONFIG_MAX + 1];
+ struct br_cfm_mep_config config;
+ u32 instance;
+ int err;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_CFM_MEP_CONFIG_MAX, attr,
+ br_cfm_mep_config_policy, extack);
+ if (err)
+ return err;
+
+ if (!tb[IFLA_BRIDGE_CFM_MEP_CONFIG_INSTANCE] ||
+ !tb[IFLA_BRIDGE_CFM_MEP_CONFIG_UNICAST_MAC] ||
+ !tb[IFLA_BRIDGE_CFM_MEP_CONFIG_MDLEVEL] ||
+ !tb[IFLA_BRIDGE_CFM_MEP_CONFIG_MEPID]) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Missing attribute: INSTANCE or UNICAST_MAC or MDLEVEL or MEPID or VID");
+ return -EINVAL;
+ }
+
+ memset(&config, 0, sizeof(config));
+
+ instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CONFIG_INSTANCE]);
+ config.unicast_mac = nla_get_mac(tb[IFLA_BRIDGE_CFM_MEP_CONFIG_UNICAST_MAC]);
+ config.mdlevel = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CONFIG_MDLEVEL]);
+ config.mepid = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CONFIG_MEPID]);
+ config.vid = 0;
+
+ return br_cfm_mep_config_set(br, instance, &config, extack);
+}
+
+static int br_cc_config_parse(struct net_bridge *br, struct nlattr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[IFLA_BRIDGE_CFM_CC_CONFIG_MAX + 1];
+ struct br_cfm_cc_config config;
+ u32 instance;
+ int err;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_CFM_CC_CONFIG_MAX, attr,
+ br_cfm_cc_config_policy, extack);
+ if (err)
+ return err;
+
+ if (!tb[IFLA_BRIDGE_CFM_CC_CONFIG_INSTANCE] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CONFIG_ENABLE] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CONFIG_EXP_INTERVAL] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CONFIG_EXP_MAID]) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Missing attribute: INSTANCE or ENABLE or INTERVAL or PRIORITY or MAID");
+ return -EINVAL;
+ }
+
+ memset(&config, 0, sizeof(config));
+
+ instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_CONFIG_INSTANCE]);
+ config.enable = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_CONFIG_ENABLE]);
+ config.exp_interval = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_CONFIG_EXP_INTERVAL]);
+ config.exp_priority = 0;
+ config.exp_maid = nla_get_maid(tb[IFLA_BRIDGE_CFM_CC_CONFIG_EXP_MAID]);
+
+ return br_cfm_cc_config_set(br, instance, &config, extack);
+}
+
+static int br_cc_peer_mep_add_parse(struct net_bridge *br, struct nlattr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_MAX + 1];
+ u32 instance, peer_mep_id;
+ int err;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_CFM_CC_PEER_MEP_MAX, attr,
+ br_cfm_cc_peer_mep_policy, extack);
+ if (err)
+ return err;
+
+ if (!tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_INSTANCE] ||
+ !tb[IFLA_BRIDGE_CFM_CC_PEER_MEPID]) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Missing attribute: INSTANCE or PEER_MEP_ID");
+ return -EINVAL;
+ }
+
+ instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_INSTANCE]);
+ peer_mep_id = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_PEER_MEPID]);
+
+ return br_cfm_cc_peer_mep_add(br, instance, peer_mep_id, extack);
+}
+
+static int br_cc_peer_mep_remove_parse(struct net_bridge *br, struct nlattr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_MAX + 1];
+ u32 instance, peer_mep_id;
+ int err;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_CFM_CC_PEER_MEP_MAX, attr,
+ br_cfm_cc_peer_mep_policy, extack);
+ if (err)
+ return err;
+
+ if (!tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_INSTANCE] ||
+ !tb[IFLA_BRIDGE_CFM_CC_PEER_MEPID]) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Missing attribute: INSTANCE or PEER_MEP_ID");
+ return -EINVAL;
+ }
+
+ instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_INSTANCE]);
+ peer_mep_id = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_PEER_MEPID]);
+
+ return br_cfm_cc_peer_mep_remove(br, instance, peer_mep_id, extack);
+}
+
+static int br_cc_rdi_parse(struct net_bridge *br, struct nlattr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[IFLA_BRIDGE_CFM_CC_RDI_MAX + 1];
+ u32 instance, rdi;
+ int err;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_CFM_CC_RDI_MAX, attr,
+ br_cfm_cc_rdi_policy, extack);
+ if (err)
+ return err;
+
+ if (!tb[IFLA_BRIDGE_CFM_CC_RDI_INSTANCE] ||
+ !tb[IFLA_BRIDGE_CFM_CC_RDI_RDI]) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Missing attribute: INSTANCE or RDI");
+ return -EINVAL;
+ }
+
+ instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_RDI_INSTANCE]);
+ rdi = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_RDI_RDI]);
+
+ return br_cfm_cc_rdi_set(br, instance, rdi, extack);
+}
+
+static int br_cc_ccm_tx_parse(struct net_bridge *br, struct nlattr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[IFLA_BRIDGE_CFM_CC_CCM_TX_MAX + 1];
+ u32 instance;
+ struct br_cfm_cc_ccm_tx_info tx_info;
+ int err;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_CFM_CC_CCM_TX_MAX, attr,
+ br_cfm_cc_ccm_tx_policy, extack);
+ if (err)
+ return err;
+
+ if (!tb[IFLA_BRIDGE_CFM_CC_CCM_TX_INSTANCE] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CCM_TX_DMAC] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CCM_TX_SEQ_NO_UPDATE] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CCM_TX_PERIOD] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV_VALUE] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV] ||
+ !tb[IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV_VALUE]) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Missing attribute: INSTANCE or PRIORITY or DEI or DMAC or SEQ_NO_UPDATE or PERIOD or IF_TLV or IF_TLV_VALUE or PORT_TLV or PORT_TLV_VALUE");
+ return -EINVAL;
+ }
+
+ instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_RDI_INSTANCE]);
+ tx_info.priority = 0;
+ tx_info.dei = 0;
+ tx_info.dmac = nla_get_mac(tb[IFLA_BRIDGE_CFM_CC_CCM_TX_DMAC]);
+ tx_info.seq_no_update = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_CCM_TX_SEQ_NO_UPDATE]);
+ tx_info.period = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_CCM_TX_PERIOD]);
+ tx_info.if_tlv = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV]);
+ tx_info.if_tlv_value = nla_get_u8(tb[IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV_VALUE]);
+ tx_info.port_tlv = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV]);
+ tx_info.port_tlv_value = nla_get_u8(tb[IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV_VALUE]);
+
+ return br_cfm_cc_ccm_tx(br, instance, &tx_info, extack);
+}
+
+int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p,
+ struct nlattr *attr, int cmd, struct netlink_ext_ack *extack)
+{
+ struct nlattr *tb[IFLA_BRIDGE_CFM_MAX + 1];
+ int err;
+
+ /* When this function is called for a port then the br pointer is
+ * invalid, therefor set the br to point correctly
+ */
+ if (p)
+ br = p->br;
+
+ err = nla_parse_nested(tb, IFLA_BRIDGE_CFM_MAX, attr,
+ br_cfm_policy, extack);
+ if (err)
+ return err;
+
+ if (tb[IFLA_BRIDGE_CFM_MEP_CREATE]) {
+ err = br_mep_create_parse(br, tb[IFLA_BRIDGE_CFM_MEP_CREATE],
+ extack);
+ if (err)
+ return err;
+ }
+
+ if (tb[IFLA_BRIDGE_CFM_MEP_DELETE]) {
+ err = br_mep_delete_parse(br, tb[IFLA_BRIDGE_CFM_MEP_DELETE],
+ extack);
+ if (err)
+ return err;
+ }
+
+ if (tb[IFLA_BRIDGE_CFM_MEP_CONFIG]) {
+ err = br_mep_config_parse(br, tb[IFLA_BRIDGE_CFM_MEP_CONFIG],
+ extack);
+ if (err)
+ return err;
+ }
+
+ if (tb[IFLA_BRIDGE_CFM_CC_CONFIG]) {
+ err = br_cc_config_parse(br, tb[IFLA_BRIDGE_CFM_CC_CONFIG],
+ extack);
+ if (err)
+ return err;
+ }
+
+ if (tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_ADD]) {
+ err = br_cc_peer_mep_add_parse(br, tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_ADD],
+ extack);
+ if (err)
+ return err;
+ }
+
+ if (tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_REMOVE]) {
+ err = br_cc_peer_mep_remove_parse(br, tb[IFLA_BRIDGE_CFM_CC_PEER_MEP_REMOVE],
+ extack);
+ if (err)
+ return err;
+ }
+
+ if (tb[IFLA_BRIDGE_CFM_CC_RDI]) {
+ err = br_cc_rdi_parse(br, tb[IFLA_BRIDGE_CFM_CC_RDI],
+ extack);
+ if (err)
+ return err;
+ }
+
+ if (tb[IFLA_BRIDGE_CFM_CC_CCM_TX]) {
+ err = br_cc_ccm_tx_parse(br, tb[IFLA_BRIDGE_CFM_CC_CCM_TX],
+ extack);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br)
+{
+ struct nlattr *tb, *cfm_tb;
+ struct br_cfm_mep *mep;
+ struct br_cfm_peer_mep *peer_mep;
+
+ cfm_tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM);
+ if (!cfm_tb)
+ return -EMSGSIZE;
+
+ list_for_each_entry_rcu(mep, &br->mep_list, head) {
+ tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM_MEP_CREATE_INFO);
+ if (!tb)
+ goto nla_info_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_CREATE_INSTANCE,
+ mep->instance))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_CREATE_DOMAIN,
+ mep->create.domain))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_CREATE_DIRECTION,
+ mep->create.direction))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_CREATE_IFINDEX,
+ mep->create.ifindex))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, tb);
+
+ tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM_MEP_CONFIG_INFO);
+
+ if (!tb)
+ goto nla_info_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_CONFIG_INSTANCE,
+ mep->instance))
+ goto nla_put_failure;
+
+ if (nla_put(skb, IFLA_BRIDGE_CFM_MEP_CONFIG_UNICAST_MAC,
+ sizeof(mep->config.unicast_mac.addr),
+ mep->config.unicast_mac.addr))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_CONFIG_MDLEVEL,
+ mep->config.mdlevel))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_CONFIG_MEPID,
+ mep->config.mepid))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, tb);
+
+ tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM_CC_CONFIG_INFO);
+
+ if (!tb)
+ goto nla_info_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_CONFIG_INSTANCE,
+ mep->instance))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_CONFIG_ENABLE,
+ mep->cc_config.enable))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_CONFIG_EXP_INTERVAL,
+ mep->cc_config.exp_interval))
+ goto nla_put_failure;
+
+ if (nla_put(skb, IFLA_BRIDGE_CFM_CC_CONFIG_EXP_MAID,
+ sizeof(mep->cc_config.exp_maid.data),
+ mep->cc_config.exp_maid.data))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, tb);
+
+ tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM_CC_RDI_INFO);
+
+ if (!tb)
+ goto nla_info_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_RDI_INSTANCE,
+ mep->instance))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_RDI_RDI,
+ mep->rdi))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, tb);
+
+ tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM_CC_CCM_TX_INFO);
+
+ if (!tb)
+ goto nla_info_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_CCM_TX_INSTANCE,
+ mep->instance))
+ goto nla_put_failure;
+
+ if (nla_put(skb, IFLA_BRIDGE_CFM_CC_CCM_TX_DMAC,
+ sizeof(mep->cc_ccm_tx_info.dmac),
+ mep->cc_ccm_tx_info.dmac.addr))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_CCM_TX_SEQ_NO_UPDATE,
+ mep->cc_ccm_tx_info.seq_no_update))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_CCM_TX_PERIOD,
+ mep->cc_ccm_tx_info.period))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV,
+ mep->cc_ccm_tx_info.if_tlv))
+ goto nla_put_failure;
+
+ if (nla_put_u8(skb, IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV_VALUE,
+ mep->cc_ccm_tx_info.if_tlv_value))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV,
+ mep->cc_ccm_tx_info.port_tlv))
+ goto nla_put_failure;
+
+ if (nla_put_u8(skb, IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV_VALUE,
+ mep->cc_ccm_tx_info.port_tlv_value))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, tb);
+
+ list_for_each_entry_rcu(peer_mep, &mep->peer_mep_list, head) {
+ tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM_CC_PEER_MEP_INFO);
+
+ if (!tb)
+ goto nla_info_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_PEER_MEP_INSTANCE,
+ mep->instance))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_PEER_MEPID,
+ peer_mep->mepid))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, tb);
+ }
+ }
+ nla_nest_end(skb, cfm_tb);
+
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(skb, tb);
+
+nla_info_failure:
+ nla_nest_cancel(skb, cfm_tb);
+
+ return -EMSGSIZE;
+}
+
+int br_cfm_status_fill_info(struct sk_buff *skb, struct net_bridge *br)
+{
+ struct nlattr *tb, *cfm_tb;
+ struct br_cfm_mep *mep;
+ struct br_cfm_peer_mep *peer_mep;
+
+ cfm_tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM);
+ if (!cfm_tb)
+ return -EMSGSIZE;
+
+ list_for_each_entry_rcu(mep, &br->mep_list, head) {
+ tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM_MEP_STATUS_INFO);
+ if (!tb)
+ goto nla_info_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_STATUS_INSTANCE,
+ mep->instance))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_STATUS_OPCODE_UNEXP_SEEN,
+ mep->status.opcode_unexp_seen))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_STATUS_VERSION_UNEXP_SEEN,
+ mep->status.version_unexp_seen))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_MEP_STATUS_RX_LEVEL_LOW_SEEN,
+ mep->status.rx_level_low_seen))
+ goto nla_put_failure;
+
+ /* Clear all 'seen' indications */
+ mep->status.opcode_unexp_seen = false;
+ mep->status.version_unexp_seen = false;
+ mep->status.rx_level_low_seen = false;
+
+ nla_nest_end(skb, tb);
+
+ list_for_each_entry_rcu(peer_mep, &mep->peer_mep_list, head) {
+ tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_INFO);
+
+ if (!tb)
+ goto nla_info_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_INSTANCE,
+ mep->instance))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_PEER_MEPID,
+ peer_mep->mepid))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_CCM_DEFECT,
+ peer_mep->cc_status.ccm_defect))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_RDI,
+ peer_mep->cc_status.rdi))
+ goto nla_put_failure;
+
+ if (nla_put_u8(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_PORT_TLV_VALUE,
+ peer_mep->cc_status.port_tlv_value))
+ goto nla_put_failure;
+
+ if (nla_put_u8(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_IF_TLV_VALUE,
+ peer_mep->cc_status.if_tlv_value))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEEN,
+ peer_mep->cc_status.seen))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_TLV_SEEN,
+ peer_mep->cc_status.tlv_seen))
+ goto nla_put_failure;
+
+ if (nla_put_u32(skb, IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEQ_UNEXP_SEEN,
+ peer_mep->cc_status.seq_unexp_seen))
+ goto nla_put_failure;
+
+ /* Clear all 'seen' indications */
+ peer_mep->cc_status.seen = false;
+ peer_mep->cc_status.tlv_seen = false;
+ peer_mep->cc_status.seq_unexp_seen = false;
+
+ nla_nest_end(skb, tb);
+ }
+ }
+ nla_nest_end(skb, cfm_tb);
+
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(skb, tb);
+
+nla_info_failure:
+ nla_nest_cancel(skb, cfm_tb);
+
+ return -EMSGSIZE;
+}
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 8a71c60fa357..6de5cb1295f6 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -16,6 +16,7 @@

#include "br_private.h"
#include "br_private_stp.h"
+#include "br_private_cfm.h"
#include "br_private_tunnel.h"

static int __get_num_vlan_infos(struct net_bridge_vlan_group *vg,
@@ -481,6 +482,48 @@ static int br_fill_ifinfo(struct sk_buff *skb,
nla_nest_end(skb, af);
}

+ if (filter_mask & RTEXT_FILTER_CFM_CONFIG) {
+ struct nlattr *af;
+ int err;
+
+ if (!br_cfm_created(br) || port)
+ goto done;
+
+ af = nla_nest_start_noflag(skb, IFLA_AF_SPEC);
+ if (!af)
+ goto nla_put_failure;
+
+ rcu_read_lock();
+ err = br_cfm_config_fill_info(skb, br);
+ rcu_read_unlock();
+
+ if (err)
+ goto nla_put_failure;
+
+ nla_nest_end(skb, af);
+ }
+
+ if (filter_mask & RTEXT_FILTER_CFM_STATUS) {
+ struct nlattr *af;
+ int err;
+
+ if (!br_cfm_created(br) || port)
+ goto done;
+
+ af = nla_nest_start_noflag(skb, IFLA_AF_SPEC);
+ if (!af)
+ goto nla_put_failure;
+
+ rcu_read_lock();
+ err = br_cfm_status_fill_info(skb, br);
+ rcu_read_unlock();
+
+ if (err)
+ goto nla_put_failure;
+
+ nla_nest_end(skb, af);
+ }
+
done:
nlmsg_end(skb, nlh);
return 0;
@@ -542,7 +585,9 @@ int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,

if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
!(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED) &&
- !(filter_mask & RTEXT_FILTER_MRP))
+ !(filter_mask & RTEXT_FILTER_MRP) &&
+ !(filter_mask & RTEXT_FILTER_CFM_CONFIG) &&
+ !(filter_mask & RTEXT_FILTER_CFM_STATUS))
return 0;

return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
@@ -704,6 +749,11 @@ static int br_afspec(struct net_bridge *br,
if (err)
return err;
break;
+ case IFLA_BRIDGE_CFM:
+ err = br_cfm_parse(br, p, attr, cmd, extack);
+ if (err)
+ return err;
+ break;
}
}

diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 385a6a6aa17e..fe36592f7525 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -1365,9 +1365,20 @@ static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br)

/* br_cfm.c */
#if IS_ENABLED(CONFIG_BRIDGE_CFM)
+int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p,
+ struct nlattr *attr, int cmd, struct netlink_ext_ack *extack);
int br_cfm_rx_frame_process(struct net_bridge_port *p, struct sk_buff *skb);
bool br_cfm_created(struct net_bridge *br);
+int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br);
+int br_cfm_status_fill_info(struct sk_buff *skb, struct net_bridge *br);
#else
+static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p,
+ struct nlattr *attr, int cmd,
+ struct netlink_ext_ack *extack)
+{
+ return -EOPNOTSUPP;
+}
+
static inline int br_cfm_rx_frame_process(struct net_bridge_port *p, struct sk_buff *skb)
{
return -EOPNOTSUPP;
@@ -1377,6 +1388,16 @@ static inline bool br_cfm_created(struct net_bridge *br)
{
return false;
}
+
+static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int br_cfm_status_fill_info(struct sk_buff *skb, struct net_bridge *br)
+{
+ return -EOPNOTSUPP;
+}
#endif

/* br_netlink.c */
--
2.28.0
\
 
 \ /
  Last update: 2020-09-04 11:22    [W:0.225 / U:0.464 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site