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linux-stable/net/bridge/br_cfm_netlink.c

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bridge: cfm: Netlink SET configuration Interface. This is the implementation of CFM netlink configuration set information interface. Add new nested netlink attributes. These attributes are used by the user space to create/delete/configure CFM instances. 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. CFM nested attribute has the following attributes in next level. SETLINK 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. Signed-off-by: Henrik Bjoernlund <henrik.bjoernlund@microchip.com> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-27 10:02:48 +00:00
// SPDX-License-Identifier: GPL-2.0-or-later
#include <net/genetlink.h>
#include "br_private.h"
#include "br_private_cfm.h"
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] = NLA_POLICY_MAX(NLA_U32, 7),
[IFLA_BRIDGE_CFM_MEP_CONFIG_MEPID] = NLA_POLICY_MAX(NLA_U32, 0x1FFF),
};
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] = NLA_POLICY_MAX(NLA_U32, 0x1FFF),
};
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 const struct nla_policy
br_cfm_policy[IFLA_BRIDGE_CFM_MAX + 1] = {
[IFLA_BRIDGE_CFM_UNSPEC] = { .type = NLA_REJECT },
[IFLA_BRIDGE_CFM_MEP_CREATE] =
NLA_POLICY_NESTED(br_cfm_mep_create_policy),
[IFLA_BRIDGE_CFM_MEP_DELETE] =
NLA_POLICY_NESTED(br_cfm_mep_delete_policy),
[IFLA_BRIDGE_CFM_MEP_CONFIG] =
NLA_POLICY_NESTED(br_cfm_mep_config_policy),
[IFLA_BRIDGE_CFM_CC_CONFIG] =
NLA_POLICY_NESTED(br_cfm_cc_config_policy),
[IFLA_BRIDGE_CFM_CC_PEER_MEP_ADD] =
NLA_POLICY_NESTED(br_cfm_cc_peer_mep_policy),
[IFLA_BRIDGE_CFM_CC_PEER_MEP_REMOVE] =
NLA_POLICY_NESTED(br_cfm_cc_peer_mep_policy),
[IFLA_BRIDGE_CFM_CC_RDI] =
NLA_POLICY_NESTED(br_cfm_cc_rdi_policy),
[IFLA_BRIDGE_CFM_CC_CCM_TX] =
NLA_POLICY_NESTED(br_cfm_cc_ccm_tx_policy),
};
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]) {
NL_SET_ERR_MSG_MOD(extack, "Missing INSTANCE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_MEP_CREATE_DOMAIN]) {
NL_SET_ERR_MSG_MOD(extack, "Missing DOMAIN attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_MEP_CREATE_DIRECTION]) {
NL_SET_ERR_MSG_MOD(extack, "Missing DIRECTION attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_MEP_CREATE_IFINDEX]) {
NL_SET_ERR_MSG_MOD(extack, "Missing IFINDEX attribute");
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_DELETE_INSTANCE]) {
NL_SET_ERR_MSG_MOD(extack,
"Missing INSTANCE attribute");
return -EINVAL;
}
instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_DELETE_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]) {
NL_SET_ERR_MSG_MOD(extack, "Missing INSTANCE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_MEP_CONFIG_UNICAST_MAC]) {
NL_SET_ERR_MSG_MOD(extack, "Missing UNICAST_MAC attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_MEP_CONFIG_MDLEVEL]) {
NL_SET_ERR_MSG_MOD(extack, "Missing MDLEVEL attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_MEP_CONFIG_MEPID]) {
NL_SET_ERR_MSG_MOD(extack, "Missing MEPID attribute");
return -EINVAL;
}
memset(&config, 0, sizeof(config));
instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CONFIG_INSTANCE]);
nla_memcpy(&config.unicast_mac.addr,
tb[IFLA_BRIDGE_CFM_MEP_CONFIG_UNICAST_MAC],
sizeof(config.unicast_mac.addr));
config.mdlevel = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CONFIG_MDLEVEL]);
config.mepid = nla_get_u32(tb[IFLA_BRIDGE_CFM_MEP_CONFIG_MEPID]);
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]) {
NL_SET_ERR_MSG_MOD(extack, "Missing INSTANCE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CONFIG_ENABLE]) {
NL_SET_ERR_MSG_MOD(extack, "Missing ENABLE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CONFIG_EXP_INTERVAL]) {
NL_SET_ERR_MSG_MOD(extack, "Missing INTERVAL attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CONFIG_EXP_MAID]) {
NL_SET_ERR_MSG_MOD(extack, "Missing MAID attribute");
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]);
nla_memcpy(&config.exp_maid.data, tb[IFLA_BRIDGE_CFM_CC_CONFIG_EXP_MAID],
sizeof(config.exp_maid.data));
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]) {
NL_SET_ERR_MSG_MOD(extack, "Missing INSTANCE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_PEER_MEPID]) {
NL_SET_ERR_MSG_MOD(extack, "Missing PEER_MEP_ID attribute");
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]) {
NL_SET_ERR_MSG_MOD(extack, "Missing INSTANCE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_PEER_MEPID]) {
NL_SET_ERR_MSG_MOD(extack, "Missing PEER_MEP_ID attribute");
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]) {
NL_SET_ERR_MSG_MOD(extack, "Missing INSTANCE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_RDI_RDI]) {
NL_SET_ERR_MSG_MOD(extack, "Missing RDI attribute");
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];
struct br_cfm_cc_ccm_tx_info tx_info;
u32 instance;
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]) {
NL_SET_ERR_MSG_MOD(extack, "Missing INSTANCE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CCM_TX_DMAC]) {
NL_SET_ERR_MSG_MOD(extack, "Missing DMAC attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CCM_TX_SEQ_NO_UPDATE]) {
NL_SET_ERR_MSG_MOD(extack, "Missing SEQ_NO_UPDATE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CCM_TX_PERIOD]) {
NL_SET_ERR_MSG_MOD(extack, "Missing PERIOD attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV]) {
NL_SET_ERR_MSG_MOD(extack, "Missing IF_TLV attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CCM_TX_IF_TLV_VALUE]) {
NL_SET_ERR_MSG_MOD(extack, "Missing IF_TLV_VALUE attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV]) {
NL_SET_ERR_MSG_MOD(extack, "Missing PORT_TLV attribute");
return -EINVAL;
}
if (!tb[IFLA_BRIDGE_CFM_CC_CCM_TX_PORT_TLV_VALUE]) {
NL_SET_ERR_MSG_MOD(extack, "Missing PORT_TLV_VALUE attribute");
return -EINVAL;
}
memset(&tx_info, 0, sizeof(tx_info));
instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_RDI_INSTANCE]);
nla_memcpy(&tx_info.dmac.addr,
tb[IFLA_BRIDGE_CFM_CC_CCM_TX_DMAC],
sizeof(tx_info.dmac.addr));
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;
}
bridge: cfm: Netlink GET configuration Interface. This is the implementation of CFM netlink configuration get information interface. Add new nested netlink attributes. These attributes are used by the user space to get configuration information. 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. CFM nested attribute has the following attributes in next level. 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. Signed-off-by: Henrik Bjoernlund <henrik.bjoernlund@microchip.com> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-27 10:02:49 +00:00
int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br)
{
struct br_cfm_peer_mep *peer_mep;
struct br_cfm_mep *mep;
struct nlattr *tb;
hlist_for_each_entry_rcu(mep, &br->mep_list, head) {
tb = nla_nest_start(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(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(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(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(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);
hlist_for_each_entry_rcu(peer_mep, &mep->peer_mep_list, head) {
tb = nla_nest_start(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);
}
}
return 0;
nla_put_failure:
nla_nest_cancel(skb, tb);
nla_info_failure:
return -EMSGSIZE;
}
bridge: cfm: Netlink GET status Interface. This is the implementation of CFM netlink status get information interface. Add new nested netlink attributes. These attributes are used by the user space to get status information. GETLINK: 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. 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> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-27 10:02:50 +00:00
bridge: cfm: Netlink Notifications. This is the implementation of Netlink notifications out of CFM. Notifications are initiated whenever a state change happens in CFM. 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. IFLA_BRIDGE_CFM_MEP_STATUS_INSTANCE: The MEP instance number of the delivered status. The type is NLA_U32. IFLA_BRIDGE_CFM_MEP_STATUS_OPCODE_UNEXP_SEEN: The MEP instance received CFM PDU with unexpected Opcode. The type is NLA_U32 (bool). IFLA_BRIDGE_CFM_MEP_STATUS_VERSION_UNEXP_SEEN: The MEP instance received CFM PDU with unexpected version. The type is NLA_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 NLA_U32 (bool). IFLA_BRIDGE_CFM_CC_PEER_STATUS_INSTANCE: The MEP instance number of the delivered status. The type is NLA_U32. IFLA_BRIDGE_CFM_CC_PEER_STATUS_PEER_MEPID: The added Peer MEP ID of the delivered status. The type is NLA_U32. IFLA_BRIDGE_CFM_CC_PEER_STATUS_CCM_DEFECT: The CCM defect status. The type is NLA_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 NLA_U32 (bool). IFLA_BRIDGE_CFM_CC_PEER_STATUS_PORT_TLV_VALUE: The last received CCM PDU Port Status TLV value field. The type is NLA_U8. IFLA_BRIDGE_CFM_CC_PEER_STATUS_IF_TLV_VALUE: The last received CCM PDU Interface Status TLV value field. The type is NLA_U8. IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEEN: A CCM frame has been received from Peer MEP. The type is NLA_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 NLA_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 NLA_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> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-27 10:02:51 +00:00
int br_cfm_status_fill_info(struct sk_buff *skb,
struct net_bridge *br,
bool getlink)
bridge: cfm: Netlink GET status Interface. This is the implementation of CFM netlink status get information interface. Add new nested netlink attributes. These attributes are used by the user space to get status information. GETLINK: 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. 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> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-27 10:02:50 +00:00
{
struct br_cfm_peer_mep *peer_mep;
struct br_cfm_mep *mep;
struct nlattr *tb;
hlist_for_each_entry_rcu(mep, &br->mep_list, head) {
tb = nla_nest_start(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;
bridge: cfm: Netlink Notifications. This is the implementation of Netlink notifications out of CFM. Notifications are initiated whenever a state change happens in CFM. 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. IFLA_BRIDGE_CFM_MEP_STATUS_INSTANCE: The MEP instance number of the delivered status. The type is NLA_U32. IFLA_BRIDGE_CFM_MEP_STATUS_OPCODE_UNEXP_SEEN: The MEP instance received CFM PDU with unexpected Opcode. The type is NLA_U32 (bool). IFLA_BRIDGE_CFM_MEP_STATUS_VERSION_UNEXP_SEEN: The MEP instance received CFM PDU with unexpected version. The type is NLA_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 NLA_U32 (bool). IFLA_BRIDGE_CFM_CC_PEER_STATUS_INSTANCE: The MEP instance number of the delivered status. The type is NLA_U32. IFLA_BRIDGE_CFM_CC_PEER_STATUS_PEER_MEPID: The added Peer MEP ID of the delivered status. The type is NLA_U32. IFLA_BRIDGE_CFM_CC_PEER_STATUS_CCM_DEFECT: The CCM defect status. The type is NLA_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 NLA_U32 (bool). IFLA_BRIDGE_CFM_CC_PEER_STATUS_PORT_TLV_VALUE: The last received CCM PDU Port Status TLV value field. The type is NLA_U8. IFLA_BRIDGE_CFM_CC_PEER_STATUS_IF_TLV_VALUE: The last received CCM PDU Interface Status TLV value field. The type is NLA_U8. IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEEN: A CCM frame has been received from Peer MEP. The type is NLA_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 NLA_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 NLA_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> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-27 10:02:51 +00:00
/* Only clear if this is a GETLINK */
if (getlink) {
/* Clear all 'seen' indications */
mep->status.opcode_unexp_seen = false;
mep->status.version_unexp_seen = false;
mep->status.rx_level_low_seen = false;
}
bridge: cfm: Netlink GET status Interface. This is the implementation of CFM netlink status get information interface. Add new nested netlink attributes. These attributes are used by the user space to get status information. GETLINK: 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. 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> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-27 10:02:50 +00:00
nla_nest_end(skb, tb);
hlist_for_each_entry_rcu(peer_mep, &mep->peer_mep_list, head) {
tb = nla_nest_start(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;
bridge: cfm: Netlink Notifications. This is the implementation of Netlink notifications out of CFM. Notifications are initiated whenever a state change happens in CFM. 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. IFLA_BRIDGE_CFM_MEP_STATUS_INSTANCE: The MEP instance number of the delivered status. The type is NLA_U32. IFLA_BRIDGE_CFM_MEP_STATUS_OPCODE_UNEXP_SEEN: The MEP instance received CFM PDU with unexpected Opcode. The type is NLA_U32 (bool). IFLA_BRIDGE_CFM_MEP_STATUS_VERSION_UNEXP_SEEN: The MEP instance received CFM PDU with unexpected version. The type is NLA_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 NLA_U32 (bool). IFLA_BRIDGE_CFM_CC_PEER_STATUS_INSTANCE: The MEP instance number of the delivered status. The type is NLA_U32. IFLA_BRIDGE_CFM_CC_PEER_STATUS_PEER_MEPID: The added Peer MEP ID of the delivered status. The type is NLA_U32. IFLA_BRIDGE_CFM_CC_PEER_STATUS_CCM_DEFECT: The CCM defect status. The type is NLA_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 NLA_U32 (bool). IFLA_BRIDGE_CFM_CC_PEER_STATUS_PORT_TLV_VALUE: The last received CCM PDU Port Status TLV value field. The type is NLA_U8. IFLA_BRIDGE_CFM_CC_PEER_STATUS_IF_TLV_VALUE: The last received CCM PDU Interface Status TLV value field. The type is NLA_U8. IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEEN: A CCM frame has been received from Peer MEP. The type is NLA_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 NLA_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 NLA_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> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-27 10:02:51 +00:00
if (getlink) { /* Only clear if this is a GETLINK */
/* 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;
}
bridge: cfm: Netlink GET status Interface. This is the implementation of CFM netlink status get information interface. Add new nested netlink attributes. These attributes are used by the user space to get status information. GETLINK: 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. 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> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-27 10:02:50 +00:00
nla_nest_end(skb, tb);
}
}
return 0;
nla_put_failure:
nla_nest_cancel(skb, tb);
nla_info_failure:
return -EMSGSIZE;
}
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