On Wed, 24 Aug 2016 09:01:23 -0700 Eric Dumazet <eric.duma...@gmail.com> wrote:
> From: Eric Dumazet <eduma...@google.com> > > Adds SNMP counter for drops caused by MD5 mismatches. > > The current syslog might help, but a counter is more precise and helps > monitoring. > > Signed-off-by: Eric Dumazet <eduma...@google.com> > --- > include/uapi/linux/snmp.h | 1 + > net/ipv4/proc.c | 1 + > net/ipv4/tcp_ipv4.c | 1 + > net/ipv6/tcp_ipv6.c | 1 + > 4 files changed, 4 insertions(+) > > diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h > index > 25a9ad8bcef1240915f2553a8acade447186d869..e7a31f8306903f53bc5881ae4c271f85cad2e361 > 100644 > --- a/include/uapi/linux/snmp.h > +++ b/include/uapi/linux/snmp.h > @@ -235,6 +235,7 @@ enum > LINUX_MIB_TCPSPURIOUSRTOS, /* TCPSpuriousRTOs */ > LINUX_MIB_TCPMD5NOTFOUND, /* TCPMD5NotFound */ > LINUX_MIB_TCPMD5UNEXPECTED, /* TCPMD5Unexpected */ > + LINUX_MIB_TCPMD5FAILURE, /* TCPMD5Failure */ > LINUX_MIB_SACKSHIFTED, > LINUX_MIB_SACKMERGED, > LINUX_MIB_SACKSHIFTFALLBACK, You can't add value in middle of user API enum without breaking binary compatibility.
