• David L Stevens's avatar
    [IPV4]: Add ICMPMsgStats MIB (RFC 4293) · 96793b48
    David L Stevens authored
    Background: RFC 4293 deprecates existing individual, named ICMP
    type counters to be replaced with the ICMPMsgStatsTable. This table
    includes entries for both IPv4 and IPv6, and requires counting of all
    ICMP types, whether or not the machine implements the type.
    
    These patches "remove" (but not really) the existing counters, and
    replace them with the ICMPMsgStats tables for v4 and v6.
    It includes the named counters in the /proc places they were, but gets the
    values for them from the new tables. It also counts packets generated
    from raw socket output (e.g., OutEchoes, MLD queries, RA's from
    radvd, etc).
    
    Changes:
    1) create icmpmsg_statistics mib
    2) create icmpv6msg_statistics mib
    3) modify existing counters to use these
    4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types
            listed by number for easy SNMP parsing
    5) modify /proc/net/snmp printing for "Icmp" to get the named data
            from new counters.
    Signed-off-by: default avatarDavid L Stevens <dlstevens@us.ibm.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    96793b48
ip_output.c 34.9 KB