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mptcp: add RM_ADDR related mibs 

This patch added two new mibs for RM_ADDR, named MPTCP_MIB_RMADDR and
MPTCP_MIB_RMSUBFLOW, when the RM_ADDR suboption is received, increase
the first mib counter, when the local subflow is removed, increase the
second mib counter.

Suggested-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Suggested-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pull/193/head
Geliang Tang 2020-09-24 08:29:56 +08:00 committed by David S. Miller
parent 0ee4261a36
commit 7a7e52e38a
3 changed files with 9 additions and 0 deletions
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2
net/mptcp/mib.c
View File

@ -29,6 +29,8 @@ static const struct snmp_mib mptcp_snmp_list[] = {
SNMP_MIB_ITEM("DuplicateData", MPTCP_MIB_DUPDATA),
SNMP_MIB_ITEM("AddAddr", MPTCP_MIB_ADDADDR),
SNMP_MIB_ITEM("EchoAdd", MPTCP_MIB_ECHOADD),
SNMP_MIB_ITEM("RmAddr", MPTCP_MIB_RMADDR),
SNMP_MIB_ITEM("RmSubflow", MPTCP_MIB_RMSUBFLOW),
SNMP_MIB_SENTINEL
};

2
net/mptcp/mib.h
View File

@ -22,6 +22,8 @@ enum linux_mptcp_mib_field {
MPTCP_MIB_DUPDATA, /* Segments discarded due to duplicate DSS */
MPTCP_MIB_ADDADDR, /* Received ADD_ADDR with echo-flag=0 */
MPTCP_MIB_ECHOADD, /* Received ADD_ADDR with echo-flag=1 */
MPTCP_MIB_RMADDR, /* Received RM_ADDR */
MPTCP_MIB_RMSUBFLOW, /* Remove a subflow */
__MPTCP_MIB_MAX
};

5
net/mptcp/pm_netlink.c
View File

@ -15,6 +15,7 @@
#include <uapi/linux/mptcp.h>
#include "protocol.h"
#include "mib.h"
/* forward declaration */
static struct genl_family mptcp_genl_family;
@ -346,6 +347,8 @@ void mptcp_pm_nl_rm_addr_received(struct mptcp_sock *msk)
msk->pm.subflows--;
WRITE_ONCE(msk->pm.accept_addr, true);
__MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_RMADDR);
break;
}
}
@ -379,6 +382,8 @@ void mptcp_pm_nl_rm_subflow_received(struct mptcp_sock *msk, u8 rm_id)
msk->pm.local_addr_used--;
msk->pm.subflows--;
__MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_RMSUBFLOW);
break;
}
}