net: Add MIB counters for checksum errors
Add MIB counters for checksum errors in IP layer,
and TCP/UDP/ICMP layers, to help diagnose problems.
$ nstat -a | grep Csum
IcmpInCsumErrors 72 0.0
TcpInCsumErrors 382 0.0
UdpInCsumErrors 463221 0.0
Icmp6InCsumErrors 75 0.0
Udp6InCsumErrors 173442 0.0
IpExtInCsumErrors 10884 0.0
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index fefdec91..df2e8b4 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -50,6 +50,7 @@
IPSTATS_MIB_OUTMCASTOCTETS, /* OutMcastOctets */
IPSTATS_MIB_INBCASTOCTETS, /* InBcastOctets */
IPSTATS_MIB_OUTBCASTOCTETS, /* OutBcastOctets */
+ IPSTATS_MIB_CSUMERRORS, /* InCsumErrors */
__IPSTATS_MIB_MAX
};
@@ -87,6 +88,7 @@
ICMP_MIB_OUTTIMESTAMPREPS, /* OutTimestampReps */
ICMP_MIB_OUTADDRMASKS, /* OutAddrMasks */
ICMP_MIB_OUTADDRMASKREPS, /* OutAddrMaskReps */
+ ICMP_MIB_CSUMERRORS, /* InCsumErrors */
__ICMP_MIB_MAX
};
@@ -103,6 +105,7 @@
ICMP6_MIB_INERRORS, /* InErrors */
ICMP6_MIB_OUTMSGS, /* OutMsgs */
ICMP6_MIB_OUTERRORS, /* OutErrors */
+ ICMP6_MIB_CSUMERRORS, /* InCsumErrors */
__ICMP6_MIB_MAX
};
@@ -130,6 +133,7 @@
TCP_MIB_RETRANSSEGS, /* RetransSegs */
TCP_MIB_INERRS, /* InErrs */
TCP_MIB_OUTRSTS, /* OutRsts */
+ TCP_MIB_CSUMERRORS, /* InCsumErrors */
__TCP_MIB_MAX
};
@@ -147,6 +151,7 @@
UDP_MIB_OUTDATAGRAMS, /* OutDatagrams */
UDP_MIB_RCVBUFERRORS, /* RcvbufErrors */
UDP_MIB_SNDBUFERRORS, /* SndbufErrors */
+ UDP_MIB_CSUMERRORS, /* InCsumErrors */
__UDP_MIB_MAX
};