usr/src/sys/netinet/icmp_var.h

/*      icmp_var.h      4.2     83/03/10        */

/*
 * Variables related to this implementation
 * of the internet control message protocol.
 */
struct  icmpstat {
/* statistics related to icmp packets generated */
        int     icps_error;             /* # of calls to icmp_error */
        int     icps_oldshort;          /* no error 'cuz old ip too short */
        int     icps_oldicmp;           /* no error 'cuz old was icmp */
        int     icps_outhist[ICMP_IREQREPLY + 1];
/* statistics related to input messages processed */
        int     icps_tooshort;          /* packet < ICMP_MINLEN */
        int     icps_checksum;          /* bad checksum */
        int     icps_badlen;            /* calculated bound mismatch */
        int     icps_reflect;           /* number of responses */
        int     icps_inhist[ICMP_IREQREPLY + 1];
};

#ifdef KERNEL
struct  icmpstat icmpstat;
#endif