/*
 * Copyright (C) 2012 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 */
#include <sys/ioctl.h>
#include <ctype.h>
#include <fcntl.h>
# include <nlist.h>
#include <ctype.h>
#if defined(sun) && defined(__SVR4)
# include <stddef.h>
#endif
#include "ipf.h"
#include "netinet/ipl.h"
#if defined(STATETOP)
# if defined(sun) && defined(__SVR4)
#   include <sys/select.h>
# endif
# include <netinet/ip_var.h>
# include <netinet/tcp_fsm.h>
# include <ctype.h>
# include <signal.h>
# include <time.h>
# if SOLARIS || defined(__NetBSD__)
#  ifdef ERR
#   undef ERR
#  endif
#  include <curses.h>
# else /* SOLARIS */
#  include <ncurses.h>
# endif /* SOLARIS */
#endif /* STATETOP */
#include "kmem.h"
#if defined(__NetBSD__)
# include <paths.h>
#endif



extern  char    *optarg;
extern  int     optind;
extern  int     opterr;

#define PRINTF  (void)printf
#define FPRINTF (void)fprintf
static  char    *filters[4] = { "ipfilter(in)", "ipfilter(out)",
                                "ipacct(in)", "ipacct(out)" };
static  int     state_logging = -1;
static  wordtab_t       *state_fields = NULL;

int     nohdrfields = 0;
int     opts = 0;
#ifdef  USE_INET6
int     use_inet4 = 0;
int     use_inet6 = 0;
#endif
int     live_kernel = 1;
int     state_fd = -1;
int     ipf_fd = -1;
int     auth_fd = -1;
int     nat_fd = -1;
frgroup_t *grtop = NULL;
frgroup_t *grtail = NULL;

char *blockreasons[FRB_MAX_VALUE + 1] = {
        "packet blocked",
        "log rule failure",
        "pps rate exceeded",
        "jumbogram",
        "makefrip failed",
        "cannot add state",
        "IP ID update failed",
        "log-or-block failed",
        "decapsulate failure",
        "cannot create new auth entry",
        "packet queued for auth",
        "buffer coalesce failure",
        "buffer pullup failure",
        "auth feedback",
        "bad fragment",
        "IPv4 NAT failure",
        "IPv6 NAT failure"
};

#ifdef STATETOP
#define STSTRSIZE       80
#define STGROWSIZE      16
#define HOSTNMLEN       40

#define STSORT_PR       0
#define STSORT_PKTS     1
#define STSORT_BYTES    2
#define STSORT_TTL      3
#define STSORT_SRCIP    4
#define STSORT_SRCPT    5
#define STSORT_DSTIP    6
#define STSORT_DSTPT    7
#define STSORT_MAX      STSORT_DSTPT
#define STSORT_DEFAULT  STSORT_BYTES


typedef struct statetop {
        i6addr_t        st_src;
        i6addr_t        st_dst;
        u_short         st_sport;
        u_short         st_dport;
        u_char          st_p;
        u_char          st_v;
        u_char          st_state[2];
        U_QUAD_T        st_pkts;
        U_QUAD_T        st_bytes;
        u_long          st_age;
} statetop_t;
#endif

int             main(int, char *[]);

static  int     fetchfrag(int, int, ipfr_t *);
static  void    showstats(friostat_t *, u_32_t);
static  void    showfrstates(ipfrstat_t *, u_long);
static  void    showlist(friostat_t *);
static  void    showstatestats(ips_stat_t *);
static  void    showipstates(ips_stat_t *, int *);
static  void    showauthstates(ipf_authstat_t *);
static  void    showtqtable_live(int);
static  void    showgroups(friostat_t *);
static  void    usage(char *);
static  int     state_matcharray(ipstate_t *, int *);
static  int     printlivelist(friostat_t *, int, int, frentry_t *,
                                   char *, char *);
static  void    printdeadlist(friostat_t *, int, int, frentry_t *,
                                   char *, char *);
static  void    printside(char *, ipf_statistics_t *);
static  void    parse_ipportstr(const char *, i6addr_t *, int *);
static  void    ipfstate_live(char *, friostat_t **, ips_stat_t **,
                                   ipfrstat_t **, ipf_authstat_t **, u_32_t *);
static  void    ipfstate_dead(char *, friostat_t **, ips_stat_t **,
                                   ipfrstat_t **, ipf_authstat_t **, u_32_t *);
static  ipstate_t *fetchstate(ipstate_t *, ipstate_t *);
#ifdef STATETOP
static  void    topipstates(i6addr_t, i6addr_t, int, int, int,
                                 int, int, int, int *);
static  void    sig_break(int);
static  void    sig_resize(int);
static  char    *getip(int, i6addr_t *);
static  char    *ttl_to_string(long);
static  int     sort_p(const void *, const void *);
static  int     sort_pkts(const void *, const void *);
static  int     sort_bytes(const void *, const void *);
static  int     sort_ttl(const void *, const void *);
static  int     sort_srcip(const void *, const void *);
static  int     sort_srcpt(const void *, const void *);
static  int     sort_dstip(const void *, const void *);
static  int     sort_dstpt(const void *, const void *);
#endif


static void usage(char *name)
{
#ifdef  USE_INET6
        fprintf(stderr, "Usage: %s [-46aAdfghIilnoRsv]\n", name);
#else
        fprintf(stderr, "Usage: %s [-4aAdfghIilnoRsv]\n", name);
#endif
        fprintf(stderr, "       %s [-M corefile] [-N symbol-list]\n", name);
#ifdef  STATETOP
#ifdef  USE_INET6
        fprintf(stderr, "       %s -t [-46C] ", name);
#else
        fprintf(stderr, "       %s -t [-4C] ", name);
#endif
#endif
        fprintf(stderr, "[-D destination address] [-P protocol] [-S source address] [-T refresh time]\n");
        exit(1);
}


int main(int argc, char *argv[])
{
        ipf_authstat_t  frauthst;
        ipf_authstat_t  *frauthstp = &frauthst;
        friostat_t fio;
        friostat_t *fiop = &fio;
        ips_stat_t ipsst;
        ips_stat_t *ipsstp = &ipsst;
        ipfrstat_t ifrst;
        ipfrstat_t *ifrstp = &ifrst;
        char *options;
        char *kern = NULL;
        char *memf = NULL;
        int c;
        int myoptind;
        int *filter = NULL;

        int protocol = -1;              /* -1 = wild card for any protocol */
        int refreshtime = 1;            /* default update time */
        int sport = -1;                 /* -1 = wild card for any source port */
        int dport = -1;                 /* -1 = wild card for any dest port */
        int topclosed = 0;              /* do not show closed tcp sessions */
        i6addr_t saddr, daddr;
        u_32_t frf;

#ifdef  USE_INET6
        options = "46aACdfghIilnostvD:m:M:N:O:P:RS:T:";
#else
        options = "4aACdfghIilnostvD:m:M:N:O:P:RS:T:";
#endif

        saddr.in4.s_addr = INADDR_ANY;  /* default any v4 source addr */
        daddr.in4.s_addr = INADDR_ANY;  /* default any v4 dest addr */
#ifdef  USE_INET6
        saddr.in6 = in6addr_any;        /* default any v6 source addr */
        daddr.in6 = in6addr_any;        /* default any v6 dest addr */
#endif

        /* Don't warn about invalid flags when we run getopt for the 1st time */
        opterr = 0;

        /*
         * Parse these two arguments now lest there be any buffer overflows
         * in the parsing of the rest.
         */
        myoptind = optind;
        while ((c = getopt(argc, argv, options)) != -1) {
                switch (c)
                {
                case 'M' :
                        memf = optarg;
                        live_kernel = 0;
                        break;
                case 'N' :
                        kern = optarg;
                        live_kernel = 0;
                        break;
                }
        }
        optind = myoptind;

        if (live_kernel == 1) {
                if ((state_fd = open(IPSTATE_NAME, O_RDONLY)) == -1) {
                        perror("open(IPSTATE_NAME)");
                        exit(-1);
                }
                if ((auth_fd = open(IPAUTH_NAME, O_RDONLY)) == -1) {
                        perror("open(IPAUTH_NAME)");
                        exit(-1);
                }
                if ((nat_fd = open(IPNAT_NAME, O_RDONLY)) == -1) {
                        perror("open(IPAUTH_NAME)");
                        exit(-1);
                }
                if ((ipf_fd = open(IPL_NAME, O_RDONLY)) == -1) {
                        fprintf(stderr, "open(%s)", IPL_NAME);
                        perror("");
                        exit(-1);
                }
        }

        if (kern != NULL || memf != NULL) {
                (void)setgid(getgid());
                (void)setuid(getuid());
        }

        if (live_kernel == 1) {
                (void) checkrev(IPL_NAME);
        } else {
                if (openkmem(kern, memf) == -1)
                        exit(-1);
        }

        (void)setgid(getgid());
        (void)setuid(getuid());

        opterr = 1;

        while ((c = getopt(argc, argv, options)) != -1)
        {
                switch (c)
                {
#ifdef  USE_INET6
                case '4' :
                        use_inet4 = 1;
                        break;
                case '6' :
                        use_inet6 = 1;
                        break;
#endif
                case 'a' :
                        opts |= OPT_ACCNT|OPT_SHOWLIST;
                        break;
                case 'A' :
                        opts |= OPT_AUTHSTATS;
                        break;
                case 'C' :
                        topclosed = 1;
                        break;
                case 'd' :
                        opts |= OPT_DEBUG;
                        break;
                case 'D' :
                        parse_ipportstr(optarg, &daddr, &dport);
                        break;
                case 'f' :
                        opts |= OPT_FRSTATES;
                        break;
                case 'g' :
                        opts |= OPT_GROUPS;
                        break;
                case 'h' :
                        opts |= OPT_HITS;
                        break;
                case 'i' :
                        opts |= OPT_INQUE|OPT_SHOWLIST;
                        break;
                case 'I' :
                        opts |= OPT_INACTIVE;
                        break;
                case 'l' :
                        opts |= OPT_SHOWLIST;
                        break;
                case 'm' :
                        filter = parseipfexpr(optarg, NULL);
                        if (filter == NULL) {
                                fprintf(stderr, "Error parsing '%s'\n",
                                        optarg);
                                exit(1);
                        }
                        break;
                case 'M' :
                        break;
                case 'N' :
                        break;
                case 'n' :
                        opts |= OPT_SHOWLINENO;
                        break;
                case 'o' :
                        opts |= OPT_OUTQUE|OPT_SHOWLIST;
                        break;
                case 'O' :
                        state_fields = parsefields(statefields, optarg);
                        break;
                case 'P' :
                        protocol = getproto(optarg);
                        if (protocol == -1) {
                                fprintf(stderr, "%s: Invalid protocol: %s\n",
                                        argv[0], optarg);
                                exit(-2);
                        }
                        break;
                case 'R' :
                        opts |= OPT_NORESOLVE;
                        break;
                case 's' :
                        opts |= OPT_IPSTATES;
                        break;
                case 'S' :
                        parse_ipportstr(optarg, &saddr, &sport);
                        break;
                case 't' :
#ifdef STATETOP
                        opts |= OPT_STATETOP;
                        break;
#else
                        fprintf(stderr,
                                "%s: state top facility not compiled in\n",
                                argv[0]);
                        exit(-2);
#endif
                case 'T' :
                        if (!sscanf(optarg, "%d", &refreshtime) ||
                                    (refreshtime <= 0)) {
                                fprintf(stderr,
                                        "%s: Invalid refreshtime < 1 : %s\n",
                                        argv[0], optarg);
                                exit(-2);
                        }
                        break;
                case 'v' :
                        opts |= OPT_VERBOSE;
                        break;
                default :
                        usage(argv[0]);
                        break;
                }
        }
#ifdef  USE_INET6
        if ((use_inet4 || use_inet6) &&
           !(opts & (OPT_INQUE | OPT_OUTQUE | OPT_STATETOP))) {
#ifdef  STATETOP
                FPRINTF(stderr, "No -i, -o, or -t given with -4 or -6\n");
#else
                FPRINTF(stderr, "No -i or -o given with -4 or -6\n");
#endif
                exit(-2);
        }
        if (use_inet4 == 0 && use_inet6 == 0)
                use_inet4 = use_inet6 = 1;
#endif

        if (live_kernel == 1) {
                bzero((char *)&fio, sizeof(fio));
                bzero((char *)&ipsst, sizeof(ipsst));
                bzero((char *)&ifrst, sizeof(ifrst));

                ipfstate_live(IPL_NAME, &fiop, &ipsstp, &ifrstp,
                              &frauthstp, &frf);
        } else {
                ipfstate_dead(kern, &fiop, &ipsstp, &ifrstp, &frauthstp, &frf);
        }

        if (opts & OPT_IPSTATES) {
                showipstates(ipsstp, filter);
        } else if (opts & OPT_SHOWLIST) {
                showlist(fiop);
                if ((opts & OPT_OUTQUE) && (opts & OPT_INQUE)){
                        opts &= ~OPT_OUTQUE;
                        showlist(fiop);
                }
        } else if (opts & OPT_FRSTATES)
                showfrstates(ifrstp, fiop->f_ticks);
#ifdef STATETOP
        else if (opts & OPT_STATETOP)
                topipstates(saddr, daddr, sport, dport, protocol,
#ifdef  USE_INET6
                use_inet6 && use_inet4 ? 0 : use_inet6 && !use_inet4 ? 6 : 4,
#else
                4,
#endif
#endif
                            refreshtime, topclosed, filter);
        else if (opts & OPT_AUTHSTATS)
                showauthstates(frauthstp);
        else if (opts & OPT_GROUPS)
                showgroups(fiop);
        else
                showstats(fiop, frf);

        return (0);
}


/*
 * Fill in the stats structures from the live kernel, using a combination
 * of ioctl's and copying directly from kernel memory.
 */
static void ipfstate_live(char *device, friostat_t **fiopp,
        ips_stat_t **ipsstpp, ipfrstat_t **ifrstpp,
        ipf_authstat_t **frauthstpp, u_32_t *frfp)
{
        ipfobj_t ipfo;

        if (checkrev(device) == -1) {
                fprintf(stderr, "User/kernel version check failed\n");
                exit(1);
        }

        if ((opts & OPT_AUTHSTATS) == 0) {
                bzero((caddr_t)&ipfo, sizeof(ipfo));
                ipfo.ipfo_rev = IPFILTER_VERSION;
                ipfo.ipfo_type = IPFOBJ_IPFSTAT;
                ipfo.ipfo_size = sizeof(friostat_t);
                ipfo.ipfo_ptr = (void *)*fiopp;

                if (ioctl(ipf_fd, SIOCGETFS, &ipfo) == -1) {
                        ipferror(ipf_fd, "ioctl(ipf:SIOCGETFS)");
                        exit(-1);
                }

                if (ioctl(ipf_fd, SIOCGETFF, frfp) == -1)
                        ipferror(ipf_fd, "ioctl(SIOCGETFF)");
        }

        if ((opts & OPT_IPSTATES) != 0) {

                bzero((caddr_t)&ipfo, sizeof(ipfo));
                ipfo.ipfo_rev = IPFILTER_VERSION;
                ipfo.ipfo_type = IPFOBJ_STATESTAT;
                ipfo.ipfo_size = sizeof(ips_stat_t);
                ipfo.ipfo_ptr = (void *)*ipsstpp;

                if ((ioctl(state_fd, SIOCGETFS, &ipfo) == -1)) {
                        ipferror(state_fd, "ioctl(state:SIOCGETFS)");
                        exit(-1);
                }
                if (ioctl(state_fd, SIOCGETLG, &state_logging) == -1) {
                        ipferror(state_fd, "ioctl(state:SIOCGETLG)");
                        exit(-1);
                }
        }

        if ((opts & OPT_FRSTATES) != 0) {
                bzero((caddr_t)&ipfo, sizeof(ipfo));
                ipfo.ipfo_rev = IPFILTER_VERSION;
                ipfo.ipfo_type = IPFOBJ_FRAGSTAT;
                ipfo.ipfo_size = sizeof(ipfrstat_t);
                ipfo.ipfo_ptr = (void *)*ifrstpp;

                if (ioctl(ipf_fd, SIOCGFRST, &ipfo) == -1) {
                        ipferror(ipf_fd, "ioctl(SIOCGFRST)");
                        exit(-1);
                }
        }

        if (opts & OPT_DEBUG)
                PRINTF("opts %#x name %s\n", opts, device);

        if ((opts & OPT_AUTHSTATS) != 0) {
                bzero((caddr_t)&ipfo, sizeof(ipfo));
                ipfo.ipfo_rev = IPFILTER_VERSION;
                ipfo.ipfo_type = IPFOBJ_AUTHSTAT;
                ipfo.ipfo_size = sizeof(ipf_authstat_t);
                ipfo.ipfo_ptr = (void *)*frauthstpp;

                if (ioctl(auth_fd, SIOCATHST, &ipfo) == -1) {
                        ipferror(auth_fd, "ioctl(SIOCATHST)");
                        exit(-1);
                }
        }
}


/*
 * Build up the stats structures from data held in the "core" memory.
 * This is mainly useful when looking at data in crash dumps and ioctl's
 * just won't work any more.
 */
static void ipfstate_dead( char *kernel, friostat_t **fiopp,
        ips_stat_t **ipsstpp, ipfrstat_t **ifrstpp,
        ipf_authstat_t **frauthstpp, u_32_t *frfp)
{
        static ipf_authstat_t frauthst, *frauthstp;
        static ipftq_t ipstcptab[IPF_TCP_NSTATES];
        static ips_stat_t ipsst, *ipsstp;
        static ipfrstat_t ifrst, *ifrstp;
        static friostat_t fio, *fiop;
        int temp;

        void *rules[2][2];
        struct nlist deadlist[44] = {
                { "ipf_auth_stats",     0, 0, 0, 0 },           /* 0 */
                { "fae_list",           0, 0, 0, 0 },
                { "ipauth",             0, 0, 0, 0 },
                { "ipf_auth_list",              0, 0, 0, 0 },
                { "ipf_auth_start",             0, 0, 0, 0 },
                { "ipf_auth_end",               0, 0, 0, 0 },           /* 5 */
                { "ipf_auth_next",              0, 0, 0, 0 },
                { "ipf_auth",           0, 0, 0, 0 },
                { "ipf_auth_used",              0, 0, 0, 0 },
                { "ipf_auth_size",              0, 0, 0, 0 },
                { "ipf_auth_defaultage",                0, 0, 0, 0 },   /* 10 */
                { "ipf_auth_pkts",              0, 0, 0, 0 },
                { "ipf_auth_lock",              0, 0, 0, 0 },
                { "frstats",            0, 0, 0, 0 },
                { "ips_stats",          0, 0, 0, 0 },
                { "ips_num",            0, 0, 0, 0 },                   /* 15 */
                { "ips_wild",           0, 0, 0, 0 },
                { "ips_list",           0, 0, 0, 0 },
                { "ips_table",          0, 0, 0, 0 },
                { "ipf_state_max",              0, 0, 0, 0 },
                { "ipf_state_size",             0, 0, 0, 0 },           /* 20 */
                { "ipf_state_doflush",          0, 0, 0, 0 },
                { "ipf_state_lock",             0, 0, 0, 0 },
                { "ipfr_heads",         0, 0, 0, 0 },
                { "ipfr_nattab",                0, 0, 0, 0 },
                { "ipfr_stats",         0, 0, 0, 0 },           /* 25 */
                { "ipfr_inuse",         0, 0, 0, 0 },
                { "ipf_ipfrttl",                0, 0, 0, 0 },
                { "ipf_frag_lock",              0, 0, 0, 0 },
                { "ipfr_timer_id",              0, 0, 0, 0 },
                { "ipf_nat_lock",               0, 0, 0, 0 },           /* 30 */
                { "ipf_rules",          0, 0, 0, 0 },
                { "ipf_acct",           0, 0, 0, 0 },
                { "ipl_frouteok",               0, 0, 0, 0 },
                { "ipf_running",                0, 0, 0, 0 },
                { "ipf_groups",         0, 0, 0, 0 },           /* 35 */
                { "ipf_active",         0, 0, 0, 0 },
                { "ipf_pass",           0, 0, 0, 0 },
                { "ipf_flags",          0, 0, 0, 0 },
                { "ipf_state_logging",          0, 0, 0, 0 },
                { "ips_tqtqb",          0, 0, 0, 0 },           /* 40 */
                { NULL,         0, 0, 0, 0 }
        };


        frauthstp = &frauthst;
        ipsstp = &ipsst;
        ifrstp = &ifrst;
        fiop = &fio;

        *frfp = 0;
        *fiopp = fiop;
        *ipsstpp = ipsstp;
        *ifrstpp = ifrstp;
        *frauthstpp = frauthstp;

        bzero((char *)fiop, sizeof(*fiop));
        bzero((char *)ipsstp, sizeof(*ipsstp));
        bzero((char *)ifrstp, sizeof(*ifrstp));
        bzero((char *)frauthstp, sizeof(*frauthstp));

        if (nlist(kernel, deadlist) == -1) {
                fprintf(stderr, "nlist error\n");
                return;
        }

        /*
         * This is for SIOCGETFF.
         */
        kmemcpy((char *)frfp, (u_long)deadlist[40].n_value, sizeof(*frfp));

        /*
         * f_locks is a combination of the lock variable from each part of
         * ipfilter (state, auth, nat, fragments).
         */
        kmemcpy((char *)fiop, (u_long)deadlist[13].n_value, sizeof(*fiop));
        kmemcpy((char *)&fiop->f_locks[0], (u_long)deadlist[22].n_value,
                sizeof(fiop->f_locks[0]));
        kmemcpy((char *)&fiop->f_locks[0], (u_long)deadlist[30].n_value,
                sizeof(fiop->f_locks[1]));
        kmemcpy((char *)&fiop->f_locks[2], (u_long)deadlist[28].n_value,
                sizeof(fiop->f_locks[2]));
        kmemcpy((char *)&fiop->f_locks[3], (u_long)deadlist[12].n_value,
                sizeof(fiop->f_locks[3]));

        /*
         * Get pointers to each list of rules (active, inactive, in, out)
         */
        kmemcpy((char *)&rules, (u_long)deadlist[31].n_value, sizeof(rules));
        fiop->f_fin[0] = rules[0][0];
        fiop->f_fin[1] = rules[0][1];
        fiop->f_fout[0] = rules[1][0];
        fiop->f_fout[1] = rules[1][1];

        /*
         * Now get accounting rules pointers.
         */
        kmemcpy((char *)&rules, (u_long)deadlist[33].n_value, sizeof(rules));
        fiop->f_acctin[0] = rules[0][0];
        fiop->f_acctin[1] = rules[0][1];
        fiop->f_acctout[0] = rules[1][0];
        fiop->f_acctout[1] = rules[1][1];

        /*
         * A collection of "global" variables used inside the kernel which
         * are all collected in friostat_t via ioctl.
         */
        kmemcpy((char *)&fiop->f_froute, (u_long)deadlist[33].n_value,
                sizeof(fiop->f_froute));
        kmemcpy((char *)&fiop->f_running, (u_long)deadlist[34].n_value,
                sizeof(fiop->f_running));
        kmemcpy((char *)&fiop->f_groups, (u_long)deadlist[35].n_value,
                sizeof(fiop->f_groups));
        kmemcpy((char *)&fiop->f_active, (u_long)deadlist[36].n_value,
                sizeof(fiop->f_active));
        kmemcpy((char *)&fiop->f_defpass, (u_long)deadlist[37].n_value,
                sizeof(fiop->f_defpass));

        /*
         * Build up the state information stats structure.
         */
        kmemcpy((char *)ipsstp, (u_long)deadlist[14].n_value, sizeof(*ipsstp));
        kmemcpy((char *)&temp, (u_long)deadlist[15].n_value, sizeof(temp));
        kmemcpy((char *)ipstcptab, (u_long)deadlist[40].n_value,
                sizeof(ipstcptab));
        ipsstp->iss_active = temp;
        ipsstp->iss_table = (void *)deadlist[18].n_value;
        ipsstp->iss_list = (void *)deadlist[17].n_value;
        ipsstp->iss_tcptab = ipstcptab;

        /*
         * Build up the authentiation information stats structure.
         */
        kmemcpy((char *)frauthstp, (u_long)deadlist[0].n_value,
                sizeof(*frauthstp));
        frauthstp->fas_faelist = (void *)deadlist[1].n_value;

        /*
         * Build up the fragment information stats structure.
         */
        kmemcpy((char *)ifrstp, (u_long)deadlist[25].n_value,
                sizeof(*ifrstp));
        ifrstp->ifs_table = (void *)deadlist[23].n_value;
        ifrstp->ifs_nattab = (void *)deadlist[24].n_value;
        kmemcpy((char *)&ifrstp->ifs_inuse, (u_long)deadlist[26].n_value,
                sizeof(ifrstp->ifs_inuse));

        /*
         * Get logging on/off switches
         */
        kmemcpy((char *)&state_logging, (u_long)deadlist[41].n_value,
                sizeof(state_logging));
}


static void printside(char *side, ipf_statistics_t *frs)
{
        int i;

        PRINTF("%lu\t%s bad packets\n", frs->fr_bad, side);
#ifdef  USE_INET6
        PRINTF("%lu\t%s IPv6 packets\n", frs->fr_ipv6, side);
#endif
        PRINTF("%lu\t%s packets blocked\n", frs->fr_block, side);
        PRINTF("%lu\t%s packets passed\n", frs->fr_pass, side);
        PRINTF("%lu\t%s packets not matched\n", frs->fr_nom, side);
        PRINTF("%lu\t%s packets counted\n", frs->fr_acct, side);
        PRINTF("%lu\t%s packets short\n", frs->fr_short, side);
        PRINTF("%lu\t%s packets logged and blocked\n", frs->fr_bpkl, side);
        PRINTF("%lu\t%s packets logged and passed\n", frs->fr_ppkl, side);
        PRINTF("%lu\t%s fragment state kept\n", frs->fr_nfr, side);
        PRINTF("%lu\t%s fragment state lost\n", frs->fr_bnfr, side);
        PRINTF("%lu\t%s packet state kept\n", frs->fr_ads, side);
        PRINTF("%lu\t%s packet state lost\n", frs->fr_bads, side);
        PRINTF("%lu\t%s invalid source\n", frs->fr_v4_badsrc, side);
        PRINTF("%lu\t%s cache hits\n", frs->fr_chit, side);
        PRINTF("%lu\t%s cache misses\n", frs->fr_cmiss, side);
        PRINTF("%lu\t%s bad coalesces\n", frs->fr_badcoalesces, side);
        PRINTF("%lu\t%s pullups succeeded\n", frs->fr_pull[0], side);
        PRINTF("%lu\t%s pullups failed\n", frs->fr_pull[1], side);
        PRINTF("%lu\t%s TCP checksum failures\n", frs->fr_tcpbad, side);
        for (i = 0; i <= FRB_MAX_VALUE; i++)
                PRINTF("%lu\t%s block reason %s\n",
                        frs->fr_blocked[i], side, blockreasons[i]);
}


/*
 * Display the kernel stats for packets blocked and passed and other
 * associated running totals which are kept.
 */
static  void    showstats( struct friostat *fp, u_32_t frf)
{
        printside("input", &fp->f_st[0]);
        printside("output", &fp->f_st[1]);

        PRINTF("%lu\tpackets logged\n", fp->f_log_ok);
        PRINTF("%lu\tlog failures\n", fp->f_log_fail);
        PRINTF("%lu\tred-black no memory\n", fp->f_rb_no_mem);
        PRINTF("%lu\tred-black node maximum\n", fp->f_rb_node_max);
        PRINTF("%lu\tICMP replies sent\n", fp->f_st[0].fr_ret);
        PRINTF("%lu\tTCP RSTs sent\n", fp->f_st[1].fr_ret);
        PRINTF("%lu\tfastroute successes\n", fp->f_froute[0]);
        PRINTF("%lu\tfastroute failures\n", fp->f_froute[1]);
        PRINTF("%u\tIPF Ticks\n", fp->f_ticks);

        PRINTF("%x\tPacket log flags set:\n", frf);
        if (frf & FF_LOGPASS)
                PRINTF("\tpackets passed through filter\n");
        if (frf & FF_LOGBLOCK)
                PRINTF("\tpackets blocked by filter\n");
        if (frf & FF_LOGNOMATCH)
                PRINTF("\tpackets not matched by filter\n");
        if (!frf)
                PRINTF("\tnone\n");
}


/*
 * Print out a list of rules from the kernel, starting at the one passed.
 */
static int
printlivelist( struct friostat *fiop, int out, int set, frentry_t *fp,
        char *group, char *comment)
{
        struct  frentry fb;
        ipfruleiter_t rule;
        frentry_t zero;
        frgroup_t *g;
        ipfobj_t obj;
        int rules;
        int num;

        rules = 0;

        rule.iri_inout = out;
        rule.iri_active = set;
        rule.iri_rule = &fb;
        rule.iri_nrules = 1;
        if (group != NULL)
                strncpy(rule.iri_group, group, FR_GROUPLEN);
        else
                rule.iri_group[0] = '\0';

        bzero((char *)&zero, sizeof(zero));

        bzero((char *)&obj, sizeof(obj));
        obj.ipfo_rev = IPFILTER_VERSION;
        obj.ipfo_type = IPFOBJ_IPFITER;
        obj.ipfo_size = sizeof(rule);
        obj.ipfo_ptr = &rule;

        while (rule.iri_rule != NULL) {
                u_long array[1000];

                memset(array, 0xff, sizeof(array));
                fp = (frentry_t *)array;
                rule.iri_rule = fp;
                if (ioctl(ipf_fd, SIOCIPFITER, &obj) == -1) {
                        ipferror(ipf_fd, "ioctl(SIOCIPFITER)");
                        num = IPFGENITER_IPF;
                        (void) ioctl(ipf_fd,SIOCIPFDELTOK, &num);
                        return (rules);
                }
                if (bcmp(fp, &zero, sizeof(zero)) == 0)
                        break;
                if (rule.iri_rule == NULL)
                        break;
#ifdef USE_INET6
                if (use_inet6 != 0 && use_inet4 == 0) {
                        if (fp->fr_family != 0 && fp->fr_family != AF_INET6)
                                continue;
                } else if (use_inet4 != 0 && use_inet6 == 0) {
#endif
                        if (fp->fr_family != 0 && fp->fr_family != AF_INET)
                                continue;
#ifdef USE_INET6
                } else {
                        if (fp->fr_family != 0 &&
                           fp->fr_family != AF_INET && fp->fr_family != AF_INET6)
                                continue;
                }
#endif

                if (fp->fr_data != NULL)
                        fp->fr_data = (char *)fp + fp->fr_size;

                rules++;

                if (opts & (OPT_HITS|OPT_DEBUG))
#ifdef  USE_QUAD_T
                        PRINTF("%"PRIu64" ", (unsigned long long) fp->fr_hits);
#else
                        PRINTF("%lu ", fp->fr_hits);
#endif
                if (opts & (OPT_ACCNT|OPT_DEBUG))
#ifdef  USE_QUAD_T
                        PRINTF("%"PRIu64" ", (unsigned long long) fp->fr_bytes);
#else
                        PRINTF("%lu ", fp->fr_bytes);
#endif
                if (opts & OPT_SHOWLINENO)
                        PRINTF("@%d ", rules);

                if (fp->fr_die != 0)
                        fp->fr_die -= fiop->f_ticks;

                printfr(fp, ioctl);
                if (opts & OPT_DEBUG) {
                        binprint(fp, fp->fr_size);
                        if (fp->fr_data != NULL && fp->fr_dsize > 0)
                                binprint(fp->fr_data, fp->fr_dsize);
                }
                if (fp->fr_grhead != -1) {
                        for (g = grtop; g != NULL; g = g->fg_next) {
                                if (!strncmp(fp->fr_names + fp->fr_grhead,
                                             g->fg_name,
                                             FR_GROUPLEN))
                                        break;
                        }
                        if (g == NULL) {
                                g = calloc(1, sizeof(*g));

                                if (g != NULL) {
                                        strncpy(g->fg_name,
                                                fp->fr_names + fp->fr_grhead,
                                                FR_GROUPLEN);
                                        if (grtop == NULL) {
                                                grtop = g;
                                                grtail = g;
                                        } else {
                                                grtail->fg_next = g;
                                                grtail = g;
                                        }
                                }
                        }
                }
                if (fp->fr_type == FR_T_CALLFUNC) {
                        rules += printlivelist(fiop, out, set, fp->fr_data,
                                               group, "# callfunc: ");
                }
        }

        num = IPFGENITER_IPF;
        (void) ioctl(ipf_fd,SIOCIPFDELTOK, &num);

        return (rules);
}


static void printdeadlist(friostat_t *fiop, int out, int set, frentry_t *fp,
        char *group, char *comment)
{
        frgroup_t *grtop, *grtail, *g;
        struct  frentry fb;
        char    *data;
        u_32_t  type;
        int     n;

        fb.fr_next = fp;
        n = 0;
        grtop = NULL;
        grtail = NULL;

        for (n = 1; fp; fp = fb.fr_next, n++) {
                if (kmemcpy((char *)&fb, (u_long)fb.fr_next,
                            fb.fr_size) == -1) {
                        perror("kmemcpy");
                        return;
                }
                fp = &fb;
#ifdef  USE_INET6
                if (use_inet6 != 0 && use_inet4 == 0) {
                        if (fp->fr_family != 0 && fp->fr_family != AF_INET6)
                                continue;
                } else if (use_inet4 != 0 && use_inet6 == 0) {
#endif
                        if (fp->fr_family != 0 && fp->fr_family != AF_INET)
                                continue;
#ifdef  USE_INET6
                } else {
                        if (fp->fr_family != 0 &&
                           fp->fr_family != AF_INET && fp->fr_family != AF_INET6)
                                continue;
                }
#endif

                data = NULL;
                type = fb.fr_type & ~FR_T_BUILTIN;
                if (type == FR_T_IPF || type == FR_T_BPFOPC) {
                        if (fb.fr_dsize) {
                                data = malloc(fb.fr_dsize);

                                if (kmemcpy(data, (u_long)fb.fr_data,
                                            fb.fr_dsize) == -1) {
                                        perror("kmemcpy");
                                        return;
                                }
                                fb.fr_data = data;
                        }
                }

                if (opts & OPT_HITS)
#ifdef  USE_QUAD_T
                        PRINTF("%"PRIu64" ", (unsigned long long) fb.fr_hits);
#else
                        PRINTF("%lu ", fb.fr_hits);
#endif
                if (opts & OPT_ACCNT)
#ifdef  USE_QUAD_T
                        PRINTF("%"PRIu64" ", (unsigned long long) fb.fr_bytes);
#else
                        PRINTF("%lu ", fb.fr_bytes);
#endif
                if (opts & OPT_SHOWLINENO)
                        PRINTF("@%d ", n);

                printfr(fp, ioctl);
                if (opts & OPT_DEBUG) {
                        binprint(fp, fp->fr_size);
                        if (fb.fr_data != NULL && fb.fr_dsize > 0)
                                binprint(fb.fr_data, fb.fr_dsize);
                }
                if (data != NULL)
                        free(data);
                if (fb.fr_grhead != -1) {
                        g = calloc(1, sizeof(*g));

                        if (g != NULL) {
                                strncpy(g->fg_name, fb.fr_names + fb.fr_grhead,
                                        FR_GROUPLEN);
                                if (grtop == NULL) {
                                        grtop = g;
                                        grtail = g;
                                } else {
                                        grtail->fg_next = g;
                                        grtail = g;
                                }
                        }
                }
                if (type == FR_T_CALLFUNC) {
                        printdeadlist(fiop, out, set, fb.fr_data, group,
                                      "# callfunc: ");
                }
        }

        while ((g = grtop) != NULL) {
                printdeadlist(fiop, out, set, NULL, g->fg_name, comment);
                grtop = g->fg_next;
                free(g);
        }
}

/*
 * print out all of the asked for rule sets, using the stats struct as
 * the base from which to get the pointers.
 */
static  void    showlist(struct friostat *fiop)
{
        struct  frentry *fp = NULL;
        int     i, set;

        set = fiop->f_active;
        if (opts & OPT_INACTIVE)
                set = 1 - set;
        if (opts & OPT_ACCNT) {
                if (opts & OPT_OUTQUE) {
                        i = F_ACOUT;
                        fp = (struct frentry *)fiop->f_acctout[set];
                } else if (opts & OPT_INQUE) {
                        i = F_ACIN;
                        fp = (struct frentry *)fiop->f_acctin[set];
                } else {
                        FPRINTF(stderr, "No -i or -o given with -a\n");
                        return;
                }
        } else {
                if (opts & OPT_OUTQUE) {
                        i = F_OUT;
                        fp = (struct frentry *)fiop->f_fout[set];
                } else if (opts & OPT_INQUE) {
                        i = F_IN;
                        fp = (struct frentry *)fiop->f_fin[set];
                } else
                        return;
        }
        if (opts & OPT_DEBUG)
                FPRINTF(stderr, "showlist:opts %#x i %d\n", opts, i);

        if (opts & OPT_DEBUG)
                PRINTF("fp %p set %d\n", fp, set);

        if (live_kernel == 1) {
                int printed;

                printed = printlivelist(fiop, i, set, fp, NULL, NULL);
                if (printed == 0) {
                        FPRINTF(stderr, "# empty list for %s%s\n",
                                (opts & OPT_INACTIVE) ? "inactive " : "",
                                                        filters[i]);
                }
        } else {
                if (!fp) {
                        FPRINTF(stderr, "# empty list for %s%s\n",
                                (opts & OPT_INACTIVE) ? "inactive " : "",
                                                        filters[i]);
                } else {
                        printdeadlist(fiop, i, set, fp, NULL, NULL);
                }
        }
}


/*
 * Display ipfilter stateful filtering information
 */
static void showipstates(ips_stat_t *ipsp, int *filter)
{
        ipstate_t *is;
        int i;

        /*
         * If a list of states hasn't been asked for, only print out stats
         */
        if (!(opts & OPT_SHOWLIST)) {
                showstatestats(ipsp);
                return;
        }

        if ((state_fields != NULL) && (nohdrfields == 0)) {
                for (i = 0; state_fields[i].w_value != 0; i++) {
                        printfieldhdr(statefields, state_fields + i);
                        if (state_fields[i + 1].w_value != 0)
                                printf("\t");
                }
                printf("\n");
        }

        /*
         * Print out all the state information currently held in the kernel.
         */
        for (is = ipsp->iss_list; is != NULL; ) {
                ipstate_t ips;

                is = fetchstate(is, &ips);

                if (is == NULL)
                        break;

                is = ips.is_next;
                if ((filter != NULL) &&
                    (state_matcharray(&ips, filter) == 0)) {
                        continue;
                }
                if (state_fields != NULL) {
                        for (i = 0; state_fields[i].w_value != 0; i++) {
                                printstatefield(&ips, state_fields[i].w_value);
                                if (state_fields[i + 1].w_value != 0)
                                        printf("\t");
                        }
                        printf("\n");
                } else {
                        printstate(&ips, opts, ipsp->iss_ticks);
                }
        }
}


static void showstatestats(ips_stat_t *ipsp)
{
        int minlen, maxlen, totallen;
        ipftable_t table;
        u_int *buckets;
        ipfobj_t obj;
        int i, sz;

        /*
         * If a list of states hasn't been asked for, only print out stats
         */

        sz = sizeof(*buckets) * ipsp->iss_state_size;
        buckets = (u_int *)malloc(sz);

        obj.ipfo_rev = IPFILTER_VERSION;
        obj.ipfo_type = IPFOBJ_GTABLE;
        obj.ipfo_size = sizeof(table);
        obj.ipfo_ptr = &table;

        table.ita_type = IPFTABLE_BUCKETS;
        table.ita_table = buckets;

        if (live_kernel == 1) {
                if (ioctl(state_fd, SIOCGTABL, &obj) != 0) {
                        free(buckets);
                        return;
                }
        } else {
                if (kmemcpy((char *)buckets,
                            (u_long)ipsp->iss_bucketlen, sz)) {
                        free(buckets);
                        return;
                }
        }

        PRINTF("%u\tactive state table entries\n",ipsp->iss_active);
        PRINTF("%lu\tadd bad\n", ipsp->iss_add_bad);
        PRINTF("%lu\tadd duplicate\n", ipsp->iss_add_dup);
        PRINTF("%lu\tadd locked\n", ipsp->iss_add_locked);
        PRINTF("%lu\tadd oow\n", ipsp->iss_add_oow);
        PRINTF("%lu\tbucket full\n", ipsp->iss_bucket_full);
        PRINTF("%lu\tcheck bad\n", ipsp->iss_check_bad);
        PRINTF("%lu\tcheck miss\n", ipsp->iss_check_miss);
        PRINTF("%lu\tcheck nattag\n", ipsp->iss_check_nattag);
        PRINTF("%lu\tclone nomem\n", ipsp->iss_clone_nomem);
        PRINTF("%lu\tcheck notag\n", ipsp->iss_check_notag);
        PRINTF("%lu\tcheck success\n", ipsp->iss_hits);
        PRINTF("%lu\tcloned\n", ipsp->iss_cloned);
        PRINTF("%lu\texpired\n", ipsp->iss_expire);
        PRINTF("%lu\tflush all\n", ipsp->iss_flush_all);
        PRINTF("%lu\tflush closing\n", ipsp->iss_flush_closing);
        PRINTF("%lu\tflush queue\n", ipsp->iss_flush_queue);
        PRINTF("%lu\tflush state\n", ipsp->iss_flush_state);
        PRINTF("%lu\tflush timeout\n", ipsp->iss_flush_timeout);
        PRINTF("%u\thash buckets in use\n", ipsp->iss_inuse);
        PRINTF("%lu\tICMP bad\n", ipsp->iss_icmp_bad);
        PRINTF("%lu\tICMP banned\n", ipsp->iss_icmp_banned);
        PRINTF("%lu\tICMP errors\n", ipsp->iss_icmp_icmperr);
        PRINTF("%lu\tICMP head block\n", ipsp->iss_icmp_headblock);
        PRINTF("%lu\tICMP hits\n", ipsp->iss_icmp_hits);
        PRINTF("%lu\tICMP not query\n", ipsp->iss_icmp_notquery);
        PRINTF("%lu\tICMP short\n", ipsp->iss_icmp_short);
        PRINTF("%lu\tICMP too many\n", ipsp->iss_icmp_toomany);
        PRINTF("%lu\tICMPv6 errors\n", ipsp->iss_icmp6_icmperr);
        PRINTF("%lu\tICMPv6 miss\n", ipsp->iss_icmp6_miss);
        PRINTF("%lu\tICMPv6 not info\n", ipsp->iss_icmp6_notinfo);
        PRINTF("%lu\tICMPv6 not query\n", ipsp->iss_icmp6_notquery);
        PRINTF("%lu\tlog fail\n", ipsp->iss_log_fail);
        PRINTF("%lu\tlog ok\n", ipsp->iss_log_ok);
        PRINTF("%lu\tlookup interface mismatch\n", ipsp->iss_lookup_badifp);
        PRINTF("%lu\tlookup mask mismatch\n", ipsp->iss_miss_mask);
        PRINTF("%lu\tlookup port mismatch\n", ipsp->iss_lookup_badport);
        PRINTF("%lu\tlookup miss\n", ipsp->iss_lookup_miss);
        PRINTF("%lu\tmaximum rule references\n", ipsp->iss_max_ref);
        PRINTF("%lu\tmaximum hosts per rule\n", ipsp->iss_max_track);
        PRINTF("%lu\tno memory\n", ipsp->iss_nomem);
        PRINTF("%lu\tout of window\n", ipsp->iss_oow);
        PRINTF("%lu\torphans\n", ipsp->iss_orphan);
        PRINTF("%lu\tscan block\n", ipsp->iss_scan_block);
        PRINTF("%lu\tstate table maximum reached\n", ipsp->iss_max);
        PRINTF("%lu\tTCP closing\n", ipsp->iss_tcp_closing);
        PRINTF("%lu\tTCP OOW\n", ipsp->iss_tcp_oow);
        PRINTF("%lu\tTCP RST add\n", ipsp->iss_tcp_rstadd);
        PRINTF("%lu\tTCP too small\n", ipsp->iss_tcp_toosmall);
        PRINTF("%lu\tTCP bad options\n", ipsp->iss_tcp_badopt);
        PRINTF("%lu\tTCP removed\n", ipsp->iss_fin);
        PRINTF("%lu\tTCP FSM\n", ipsp->iss_tcp_fsm);
        PRINTF("%lu\tTCP strict\n", ipsp->iss_tcp_strict);
        PRINTF("%lu\tTCP wild\n", ipsp->iss_wild);
        PRINTF("%lu\tMicrosoft Windows SACK\n", ipsp->iss_winsack);

        PRINTF("State logging %sabled\n", state_logging ? "en" : "dis");

        PRINTF("IP states added:\n");
        for (i = 0; i < 256; i++) {
                if (ipsp->iss_proto[i] != 0) {
                        struct protoent *proto;

                        proto = getprotobynumber(i);
                        PRINTF("%lu", ipsp->iss_proto[i]);
                        if (proto != NULL)
                                PRINTF("\t%s\n", proto->p_name);
                        else
                                PRINTF("\t%d\n", i);
                }
        }

        PRINTF("\nState table bucket statistics:\n");
        PRINTF("%u\tin use\n", ipsp->iss_inuse);

        minlen = ipsp->iss_max;
        totallen = 0;
        maxlen = 0;

        for (i = 0; i < ipsp->iss_state_size; i++) {
                if (buckets[i] > maxlen)
                        maxlen = buckets[i];
                if (buckets[i] < minlen)
                        minlen = buckets[i];
                totallen += buckets[i];
        }

        PRINTF("%d\thash efficiency\n",
                totallen ? ipsp->iss_inuse * 100 / totallen : 0);
        PRINTF("%2.2f%%\tbucket usage\n%u\tminimal length\n",
                ((float)ipsp->iss_inuse / ipsp->iss_state_size) * 100.0,
                minlen);
        PRINTF("%u\tmaximal length\n%.3f\taverage length\n",
                maxlen,
                ipsp->iss_inuse ? (float) totallen/ ipsp->iss_inuse :
                                  0.0);

#define ENTRIES_PER_LINE 5

        if (opts & OPT_VERBOSE) {
                PRINTF("\nCurrent bucket sizes :\n");
                for (i = 0; i < ipsp->iss_state_size; i++) {
                        if ((i % ENTRIES_PER_LINE) == 0)
                                PRINTF("\t");
                        PRINTF("%4d -> %4u", i, buckets[i]);
                        if ((i % ENTRIES_PER_LINE) ==
                            (ENTRIES_PER_LINE - 1))
                                PRINTF("\n");
                        else
                                PRINTF("  ");
                }
                PRINTF("\n");
        }
        PRINTF("\n");

        free(buckets);

        if (live_kernel == 1) {
                showtqtable_live(state_fd);
        } else {
                printtqtable(ipsp->iss_tcptab);
        }
}


#ifdef STATETOP
static int handle_resize = 0, handle_break = 0;

static void topipstates(i6addr_t saddr, i6addr_t daddr, int sport, int dport,
        int protocol, int ver, int refreshtime, int topclosed, int *filter)
{
        char str1[STSTRSIZE], str2[STSTRSIZE], str3[STSTRSIZE], str4[STSTRSIZE];
        int maxtsentries = 0, reverse = 0, sorting = STSORT_DEFAULT;
        int i, j, winy, tsentry, maxx, maxy, redraw = 0, ret = 0;
        int len, srclen, dstlen, forward = 1, c = 0;
        ips_stat_t ipsst, *ipsstp = &ipsst;
        int token_type = IPFGENITER_STATE;
        statetop_t *tstable = NULL, *tp;
        const char *errstr = "";
        ipstate_t ips;
        ipfobj_t ipfo;
        struct timeval selecttimeout;
        char hostnm[HOSTNMLEN];
        struct protoent *proto;
        fd_set readfd;
        time_t t;

        /* install signal handlers */
        signal(SIGINT, sig_break);
        signal(SIGQUIT, sig_break);
        signal(SIGTERM, sig_break);
        signal(SIGWINCH, sig_resize);

        /* init ncurses stuff */
        initscr();
        cbreak();
        noecho();
        curs_set(0);
        timeout(0);
        getmaxyx(stdscr, maxy, maxx);

        /* init hostname */
        gethostname(hostnm, sizeof(hostnm) - 1);
        hostnm[sizeof(hostnm) - 1] = '\0';

        /* init ipfobj_t stuff */
        bzero((caddr_t)&ipfo, sizeof(ipfo));
        ipfo.ipfo_rev = IPFILTER_VERSION;
        ipfo.ipfo_type = IPFOBJ_STATESTAT;
        ipfo.ipfo_size = sizeof(*ipsstp);
        ipfo.ipfo_ptr = (void *)ipsstp;

        /* repeat until user aborts */
        while ( 1 ) {

                /* get state table */
                bzero((char *)&ipsst, sizeof(ipsst));
                if ((ioctl(state_fd, SIOCGETFS, &ipfo) == -1)) {
                        errstr = "ioctl(SIOCGETFS)";
                        ret = -1;
                        goto out;
                }

                /* clear the history */
                tsentry = -1;

                /* reset max str len */
                srclen = dstlen = 0;

                /* read the state table and store in tstable */
                for (; ipsstp->iss_list; ipsstp->iss_list = ips.is_next) {

                        ipsstp->iss_list = fetchstate(ipsstp->iss_list, &ips);
                        if (ipsstp->iss_list == NULL)
                                break;

                        if (ver != 0 && ips.is_v != ver)
                                continue;

                        if ((filter != NULL) &&
                            (state_matcharray(&ips, filter) == 0))
                                continue;

                        /* check v4 src/dest addresses */
                        if (ips.is_v == 4) {
                                if ((saddr.in4.s_addr != INADDR_ANY &&
                                     saddr.in4.s_addr != ips.is_saddr) ||
                                    (daddr.in4.s_addr != INADDR_ANY &&
                                     daddr.in4.s_addr != ips.is_daddr))
                                        continue;
                        }
#ifdef  USE_INET6
                        /* check v6 src/dest addresses */
                        if (ips.is_v == 6) {
                                if ((IP6_NEQ(&saddr, &in6addr_any) &&
                                     IP6_NEQ(&saddr, &ips.is_src)) ||
                                    (IP6_NEQ(&daddr, &in6addr_any) &&
                                     IP6_NEQ(&daddr, &ips.is_dst)))
                                        continue;
                        }
#endif
                        /* check protocol */
                        if (protocol > 0 && protocol != ips.is_p)
                                continue;

                        /* check ports if protocol is TCP or UDP */
                        if (((ips.is_p == IPPROTO_TCP) ||
                             (ips.is_p == IPPROTO_UDP)) &&
                           (((sport > 0) && (htons(sport) != ips.is_sport)) ||
                            ((dport > 0) && (htons(dport) != ips.is_dport))))
                                continue;

                        /* show closed TCP sessions ? */
                        if ((topclosed == 0) && (ips.is_p == IPPROTO_TCP) &&
                            (ips.is_state[0] >= IPF_TCPS_LAST_ACK) &&
                            (ips.is_state[1] >= IPF_TCPS_LAST_ACK))
                                continue;

                        /*
                         * if necessary make room for this state
                         * entry
                         */
                        tsentry++;
                        if (!maxtsentries || tsentry == maxtsentries) {
                                maxtsentries += STGROWSIZE;
                                tstable = reallocarray(tstable, maxtsentries,
                                    sizeof(statetop_t));
                                if (tstable == NULL) {
                                        perror("realloc");
                                        exit(-1);
                                }
                        }

                        /* get max src/dest address string length */
                        len = strlen(getip(ips.is_v, &ips.is_src));
                        if (srclen < len)
                                srclen = len;
                        len = strlen(getip(ips.is_v, &ips.is_dst));
                        if (dstlen < len)
                                dstlen = len;

                        /* fill structure */
                        tp = tstable + tsentry;
                        tp->st_src = ips.is_src;
                        tp->st_dst = ips.is_dst;
                        tp->st_p = ips.is_p;
                        tp->st_v = ips.is_v;
                        tp->st_state[0] = ips.is_state[0];
                        tp->st_state[1] = ips.is_state[1];
                        if (forward) {
                                tp->st_pkts = ips.is_pkts[0]+ips.is_pkts[1];
                                tp->st_bytes = ips.is_bytes[0]+ips.is_bytes[1];
                        } else {
                                tp->st_pkts = ips.is_pkts[2]+ips.is_pkts[3];
                                tp->st_bytes = ips.is_bytes[2]+ips.is_bytes[3];
                        }
                        tp->st_age = ips.is_die - ipsstp->iss_ticks;
                        if ((ips.is_p == IPPROTO_TCP) ||
                            (ips.is_p == IPPROTO_UDP)) {
                                tp->st_sport = ips.is_sport;
                                tp->st_dport = ips.is_dport;
                        }
                }

                (void) ioctl(state_fd, SIOCIPFDELTOK, &token_type);

                /* sort the array */
                if (tsentry != -1) {
                        switch (sorting)
                        {
                        case STSORT_PR:
                                qsort(tstable, tsentry + 1,
                                      sizeof(statetop_t), sort_p);
                                break;
                        case STSORT_PKTS:
                                qsort(tstable, tsentry + 1,
                                      sizeof(statetop_t), sort_pkts);
                                break;
                        case STSORT_BYTES:
                                qsort(tstable, tsentry + 1,
                                      sizeof(statetop_t), sort_bytes);
                                break;
                        case STSORT_TTL:
                                qsort(tstable, tsentry + 1,
                                      sizeof(statetop_t), sort_ttl);
                                break;
                        case STSORT_SRCIP:
                                qsort(tstable, tsentry + 1,
                                      sizeof(statetop_t), sort_srcip);
                                break;
                        case STSORT_SRCPT:
                                qsort(tstable, tsentry +1,
                                        sizeof(statetop_t), sort_srcpt);
                                break;
                        case STSORT_DSTIP:
                                qsort(tstable, tsentry + 1,
                                      sizeof(statetop_t), sort_dstip);
                                break;
                        case STSORT_DSTPT:
                                qsort(tstable, tsentry + 1,
                                      sizeof(statetop_t), sort_dstpt);
                                break;
                        default:
                                break;
                        }
                }

                /* handle window resizes */
                if (handle_resize) {
                        endwin();
                        initscr();
                        cbreak();
                        noecho();
                        curs_set(0);
                        timeout(0);
                        getmaxyx(stdscr, maxy, maxx);
                        redraw = 1;
                        handle_resize = 0;
                }

                /* stop program? */
                if (handle_break)
                        break;

                /* print title */
                erase();
                attron(A_BOLD);
                winy = 0;
                move(winy,0);
                snprintf(str1, sizeof(str1), "%s - %s - state top", hostnm, IPL_VERSION);
                for (j = 0 ; j < (maxx - 8 - strlen(str1)) / 2; j++)
                        printw(" ");
                printw("%s", str1);
                attroff(A_BOLD);

                /* just for fun add a clock */
                move(winy, maxx - 8);
                t = time(NULL);
                strftime(str1, 80, "%T", localtime(&t));
                printw("%s\n", str1);

                /*
                 * print the display filters, this is placed in the loop,
                 * because someday I might add code for changing these
                 * while the programming is running :-)
                 */
                if (sport >= 0)
                        snprintf(str1, sizeof(str1), "%s,%d", getip(ver, &saddr), sport);
                else
                        snprintf(str1, sizeof(str1), "%s", getip(ver, &saddr));

                if (dport >= 0)
                        snprintf(str2, sizeof(str2), "%s,%d", getip(ver, &daddr), dport);
                else
                        snprintf(str2, sizeof(str2), "%s", getip(ver, &daddr));

                if (protocol < 0)
                        strcpy(str3, "any");
                else if ((proto = getprotobynumber(protocol)) != NULL)
                        snprintf(str3, sizeof(str3), "%s", proto->p_name);
                else
                        snprintf(str3, sizeof(str3), "%d", protocol);

                switch (sorting)
                {
                case STSORT_PR:
                        snprintf(str4, sizeof(str4), "proto");
                        break;
                case STSORT_PKTS:
                        snprintf(str4, sizeof(str4), "# pkts");
                        break;
                case STSORT_BYTES:
                        snprintf(str4, sizeof(str4), "# bytes");
                        break;
                case STSORT_TTL:
                        snprintf(str4, sizeof(str4), "ttl");
                        break;
                case STSORT_SRCIP:
                        snprintf(str4, sizeof(str4), "src ip");
                        break;
                case STSORT_SRCPT:
                        snprintf(str4, sizeof(str4), "src port");
                        break;
                case STSORT_DSTIP:
                        snprintf(str4, sizeof(str4), "dest ip");
                        break;
                case STSORT_DSTPT:
                        snprintf(str4, sizeof(str4), "dest port");
                        break;
                default:
                        snprintf(str4, sizeof(str4), "unknown");
                        break;
                }

                if (reverse)
                        strcat(str4, " (reverse)");

                winy += 2;
                move(winy,0);
                printw("Src: %s, Dest: %s, Proto: %s, Sorted by: %s\n\n",
                       str1, str2, str3, str4);

                /*
                 * For an IPv4 IP address we need at most 15 characters,
                 * 4 tuples of 3 digits, separated by 3 dots. Enforce this
                 * length, so the columns do not change positions based
                 * on the size of the IP address. This length makes the
                 * output fit in a 80 column terminal.
                 * We are lacking a good solution for IPv6 addresses (that
                 * can be longer that 15 characters), so we do not enforce
                 * a maximum on the IP field size.
                 */
                if (srclen < 15)
                        srclen = 15;
                if (dstlen < 15)
                        dstlen = 15;

                /* print column description */
                winy += 2;
                move(winy,0);
                attron(A_BOLD);
                printw("%-*s %-*s %3s %4s %7s %9s %9s\n",
                       srclen + 6, "Source IP", dstlen + 6, "Destination IP",
                       "ST", "PR", "#pkts", "#bytes", "ttl");
                attroff(A_BOLD);

                /* print all the entries */
                tp = tstable;
                if (reverse)
                        tp += tsentry;

                if (tsentry > maxy - 6)
                        tsentry = maxy - 6;
                for (i = 0; i <= tsentry; i++) {
                        /* print src/dest and port */
                        if ((tp->st_p == IPPROTO_TCP) ||
                            (tp->st_p == IPPROTO_UDP)) {
                                snprintf(str1, sizeof(str1), "%s,%hu",
                                        getip(tp->st_v, &tp->st_src),
                                        ntohs(tp->st_sport));
                                snprintf(str2, sizeof(str2), "%s,%hu",
                                        getip(tp->st_v, &tp->st_dst),
                                        ntohs(tp->st_dport));
                        } else {
                                snprintf(str1, sizeof(str1), "%s", getip(tp->st_v,
                                    &tp->st_src));
                                snprintf(str2, sizeof(str2), "%s", getip(tp->st_v,
                                    &tp->st_dst));
                        }
                        winy++;
                        move(winy, 0);
                        printw("%-*s %-*s", srclen + 6, str1, dstlen + 6, str2);

                        /* print state */
                        snprintf(str1, sizeof(str1), "%X/%X", tp->st_state[0],
                                tp->st_state[1]);
                        printw(" %3s", str1);

                        /* print protocol */
                        proto = getprotobynumber(tp->st_p);
                        if (proto) {
                                strncpy(str1, proto->p_name, 4);
                                str1[4] = '\0';
                        } else {
                                snprintf(str1, sizeof(str1), "%d", tp->st_p);
                        }
                        /* just print icmp for IPv6-ICMP */
                        if (tp->st_p == IPPROTO_ICMPV6)
                                strcpy(str1, "icmp");
                        printw(" %4s", str1);

                        /* print #pkt/#bytes */
#ifdef  USE_QUAD_T
                        printw(" %7qu %9qu", (unsigned long long) tp->st_pkts,
                                (unsigned long long) tp->st_bytes);
#else
                        printw(" %7lu %9lu", tp->st_pkts, tp->st_bytes);
#endif
                        printw(" %9s", ttl_to_string(tp->st_age));

                        if (reverse)
                                tp--;
                        else
                                tp++;
                }

                /* screen data structure is filled, now update the screen */
                if (redraw)
                        clearok(stdscr,1);

                if (refresh() == ERR)
                        break;
                if (redraw) {
                        clearok(stdscr,0);
                        redraw = 0;
                }

                /* wait for key press or a 1 second time out period */
                selecttimeout.tv_sec = refreshtime;
                selecttimeout.tv_usec = 0;
                FD_ZERO(&readfd);
                FD_SET(0, &readfd);
                select(1, &readfd, NULL, NULL, &selecttimeout);

                /* if key pressed, read all waiting keys */
                if (FD_ISSET(0, &readfd)) {
                        c = wgetch(stdscr);
                        if (c == ERR)
                                continue;

                        if (ISALPHA(c) && ISUPPER(c))
                                c = TOLOWER(c);
                        if (c == 'l') {
                                redraw = 1;
                        } else if (c == 'q') {
                                break;
                        } else if (c == 'r') {
                                reverse = !reverse;
                        } else if (c == 'b') {
                                forward = 0;
                        } else if (c == 'f') {
                                forward = 1;
                        } else if (c == 's') {
                                if (++sorting > STSORT_MAX)
                                        sorting = 0;
                        }
                }
        } /* while */

out:
        printw("\n");
        curs_set(1);
        /* nocbreak(); XXX - endwin() should make this redundant */
        endwin();

        free(tstable);
        if (ret != 0)
                perror(errstr);
}
#endif


/*
 * Show fragment cache information that's held in the kernel.
 */
static void showfrstates(ipfrstat_t *ifsp, u_long ticks)
{
        struct ipfr *ipfrtab[IPFT_SIZE], ifr;
        int i;

        /*
         * print out the numeric statistics
         */
        PRINTF("IP fragment states:\n%lu\tnew\n%lu\texpired\n%lu\thits\n",
                ifsp->ifs_new, ifsp->ifs_expire, ifsp->ifs_hits);
        PRINTF("%lu\tretrans\n%lu\ttoo short\n",
                ifsp->ifs_retrans0, ifsp->ifs_short);
        PRINTF("%lu\tno memory\n%lu\talready exist\n",
                ifsp->ifs_nomem, ifsp->ifs_exists);
        PRINTF("%lu\tinuse\n", ifsp->ifs_inuse);
        PRINTF("\n");

        if (live_kernel == 0) {
                if (kmemcpy((char *)ipfrtab, (u_long)ifsp->ifs_table,
                            sizeof(ipfrtab)))
                        return;
        }

        /*
         * Print out the contents (if any) of the fragment cache table.
         */
        if (live_kernel == 1) {
                do {
                        if (fetchfrag(ipf_fd, IPFGENITER_FRAG, &ifr) != 0)
                                break;
                        if (ifr.ipfr_ifp == NULL)
                                break;
                        ifr.ipfr_ttl -= ticks;
                        printfraginfo("", &ifr);
                } while (ifr.ipfr_next != NULL);
        } else {
                for (i = 0; i < IPFT_SIZE; i++)
                        while (ipfrtab[i] != NULL) {
                                if (kmemcpy((char *)&ifr, (u_long)ipfrtab[i],
                                            sizeof(ifr)) == -1)
                                        break;
                                printfraginfo("", &ifr);
                                ipfrtab[i] = ifr.ipfr_next;
                        }
        }
        /*
         * Print out the contents (if any) of the NAT fragment cache table.
         */

        if (live_kernel == 0) {
                if (kmemcpy((char *)ipfrtab, (u_long)ifsp->ifs_nattab,
                            sizeof(ipfrtab)))
                        return;
        }

        if (live_kernel == 1) {
                do {
                        if (fetchfrag(nat_fd, IPFGENITER_NATFRAG, &ifr) != 0)
                                break;
                        if (ifr.ipfr_ifp == NULL)
                                break;
                        ifr.ipfr_ttl -= ticks;
                        printfraginfo("NAT: ", &ifr);
                } while (ifr.ipfr_next != NULL);
        } else {
                for (i = 0; i < IPFT_SIZE; i++)
                        while (ipfrtab[i] != NULL) {
                                if (kmemcpy((char *)&ifr, (u_long)ipfrtab[i],
                                            sizeof(ifr)) == -1)
                                        break;
                                printfraginfo("NAT: ", &ifr);
                                ipfrtab[i] = ifr.ipfr_next;
                        }
        }
}


/*
 * Show stats on how auth within IPFilter has been used
 */
static void showauthstates(ipf_authstat_t *asp)
{
        frauthent_t *frap, fra;
        ipfgeniter_t auth;
        ipfobj_t obj;

        obj.ipfo_rev = IPFILTER_VERSION;
        obj.ipfo_type = IPFOBJ_GENITER;
        obj.ipfo_size = sizeof(auth);
        obj.ipfo_ptr = &auth;

        auth.igi_type = IPFGENITER_AUTH;
        auth.igi_nitems = 1;
        auth.igi_data = &fra;

#ifdef  USE_QUAD_T
        printf("Authorisation hits: %"PRIu64"\tmisses %"PRIu64"\n",
                (unsigned long long) asp->fas_hits,
                (unsigned long long) asp->fas_miss);
#else
        printf("Authorisation hits: %ld\tmisses %ld\n", asp->fas_hits,
                asp->fas_miss);
#endif
        printf("nospace %ld\nadded %ld\nsendfail %ld\nsendok %ld\n",
                asp->fas_nospace, asp->fas_added, asp->fas_sendfail,
                asp->fas_sendok);
        printf("queok %ld\nquefail %ld\nexpire %ld\n",
                asp->fas_queok, asp->fas_quefail, asp->fas_expire);

        frap = asp->fas_faelist;
        while (frap) {
                if (live_kernel == 1) {
                        if (ioctl(auth_fd, SIOCGENITER, &obj))
                                break;
                } else {
                        if (kmemcpy((char *)&fra, (u_long)frap,
                                    sizeof(fra)) == -1)
                                break;
                }
                printf("age %ld\t", fra.fae_age);
                printfr(&fra.fae_fr, ioctl);
                frap = fra.fae_next;
        }
}


/*
 * Display groups used for each of filter rules, accounting rules and
 * authentication, separately.
 */
static void showgroups(struct friostat  *fiop)
{
        static char *gnames[3] = { "Filter", "Accounting", "Authentication" };
        static int gnums[3] = { IPL_LOGIPF, IPL_LOGCOUNT, IPL_LOGAUTH };
        frgroup_t *fp, grp;
        int on, off, i;

        on = fiop->f_active;
        off = 1 - on;

        for (i = 0; i < 3; i++) {
                printf("%s groups (active):\n", gnames[i]);
                for (fp = fiop->f_groups[gnums[i]][on]; fp != NULL;
                     fp = grp.fg_next)
                        if (kmemcpy((char *)&grp, (u_long)fp, sizeof(grp)))
                                break;
                        else
                                printf("%s\n", grp.fg_name);
                printf("%s groups (inactive):\n", gnames[i]);
                for (fp = fiop->f_groups[gnums[i]][off]; fp != NULL;
                     fp = grp.fg_next)
                        if (kmemcpy((char *)&grp, (u_long)fp, sizeof(grp)))
                                break;
                        else
                                printf("%s\n", grp.fg_name);
        }
}


static void parse_ipportstr(const char *argument, i6addr_t *ip, int *port)
{
        char *s, *comma;
        int ok = 0;

        /* make working copy of argument, Theoretically you must be able
         * to write to optarg, but that seems very ugly to me....
         */
        s = strdup(argument);
        if (s == NULL)
                return;

        /* get port */
        if ((comma = strchr(s, ',')) != NULL) {
                if (!strcasecmp(comma + 1, "any")) {
                        *port = -1;
                } else if (!sscanf(comma + 1, "%d", port) ||
                           (*port < 0) || (*port > 65535)) {
                        fprintf(stderr, "Invalid port specification in %s\n",
                                argument);
                        free(s);
                        exit(-2);
                }
                *comma = '\0';
        }


        /* get ip address */
        if (!strcasecmp(s, "any")) {
                ip->in4.s_addr = INADDR_ANY;
                ok = 1;
#ifdef  USE_INET6
                ip->in6 = in6addr_any;
        } else if (use_inet6 && !use_inet4 && inet_pton(AF_INET6, s, &ip->in6)) {
                ok = 1;
#endif
        } else if (inet_aton(s, &ip->in4))
                ok = 1;

        if (ok == 0) {
                fprintf(stderr, "Invalid IP address: %s\n", s);
                free(s);
                exit(-2);
        }

        /* free allocated memory */
        free(s);
}


#ifdef STATETOP
static void sig_resize(int s)
{
        handle_resize = 1;
}

static void sig_break(int s)
{
        handle_break = 1;
}

static char *getip(int v, i6addr_t *addr)
{
#ifdef  USE_INET6
        static char hostbuf[MAXHOSTNAMELEN+1];
#endif

        if (v == 0)
                return ("any");

        if (v == 4)
                return (inet_ntoa(addr->in4));

#ifdef  USE_INET6
        (void) inet_ntop(AF_INET6, &addr->in6, hostbuf, sizeof(hostbuf) - 1);
        hostbuf[MAXHOSTNAMELEN] = '\0';
        return (hostbuf);
#else
        return ("IPv6");
#endif
}


static char *ttl_to_string(long int ttl)
{
        static char ttlbuf[STSTRSIZE];
        int hours, minutes, seconds;

        /* ttl is in half seconds */
        ttl /= 2;

        hours = ttl / 3600;
        ttl = ttl % 3600;
        minutes = ttl / 60;
        seconds = ttl % 60;

        if (hours > 0)
                snprintf(ttlbuf, sizeof(ttlbuf), "%2d:%02d:%02d", hours, minutes, seconds);
        else
                snprintf(ttlbuf, sizeof(ttlbuf), "%2d:%02d", minutes, seconds);
        return (ttlbuf);
}


static int sort_pkts(const void *a, const void *b)
{

        register const statetop_t *ap = a;
        register const statetop_t *bp = b;

        if (ap->st_pkts == bp->st_pkts)
                return (0);
        else if (ap->st_pkts < bp->st_pkts)
                return (1);
        return (-1);
}


static int sort_bytes(const void *a, const void *b)
{
        register const statetop_t *ap = a;
        register const statetop_t *bp = b;

        if (ap->st_bytes == bp->st_bytes)
                return (0);
        else if (ap->st_bytes < bp->st_bytes)
                return (1);
        return (-1);
}


static int sort_p(const void *a, const void *b)
{
        register const statetop_t *ap = a;
        register const statetop_t *bp = b;

        if (ap->st_p == bp->st_p)
                return (0);
        else if (ap->st_p < bp->st_p)
                return (1);
        return (-1);
}


static int sort_ttl(const void *a, const void *b)
{
        register const statetop_t *ap = a;
        register const statetop_t *bp = b;

        if (ap->st_age == bp->st_age)
                return (0);
        else if (ap->st_age < bp->st_age)
                return (1);
        return (-1);
}

static int sort_srcip(const void *a, const void *b)
{
        register const statetop_t *ap = a;
        register const statetop_t *bp = b;

#ifdef USE_INET6
        if (use_inet6 && !use_inet4) {
                if (IP6_EQ(&ap->st_src, &bp->st_src))
                        return (0);
                else if (IP6_GT(&ap->st_src, &bp->st_src))
                        return (1);
        } else
#endif
        {
                if (ntohl(ap->st_src.in4.s_addr) ==
                    ntohl(bp->st_src.in4.s_addr))
                        return (0);
                else if (ntohl(ap->st_src.in4.s_addr) >
                         ntohl(bp->st_src.in4.s_addr))
                        return (1);
        }
        return (-1);
}

static int sort_srcpt(const void *a, const void *b)
{
        register const statetop_t *ap = a;
        register const statetop_t *bp = b;

        if (htons(ap->st_sport) == htons(bp->st_sport))
                return (0);
        else if (htons(ap->st_sport) > htons(bp->st_sport))
                return (1);
        return (-1);
}

static int sort_dstip(const void *a, const void *b)
{
        register const statetop_t *ap = a;
        register const statetop_t *bp = b;

#ifdef USE_INET6
        if (use_inet6 && !use_inet4) {
                if (IP6_EQ(&ap->st_dst, &bp->st_dst))
                        return (0);
                else if (IP6_GT(&ap->st_dst, &bp->st_dst))
                        return (1);
        } else
#endif
        {
                if (ntohl(ap->st_dst.in4.s_addr) ==
                    ntohl(bp->st_dst.in4.s_addr))
                        return (0);
                else if (ntohl(ap->st_dst.in4.s_addr) >
                         ntohl(bp->st_dst.in4.s_addr))
                        return (1);
        }
        return (-1);
}

static int sort_dstpt(const void *a, const void *b)
{
        register const statetop_t *ap = a;
        register const statetop_t *bp = b;

        if (htons(ap->st_dport) == htons(bp->st_dport))
                return (0);
        else if (htons(ap->st_dport) > htons(bp->st_dport))
                return (1);
        return (-1);
}

#endif


ipstate_t *fetchstate(ipstate_t *src, ipstate_t *dst)
{

        if (live_kernel == 1) {
                ipfgeniter_t state;
                ipfobj_t obj;

                obj.ipfo_rev = IPFILTER_VERSION;
                obj.ipfo_type = IPFOBJ_GENITER;
                obj.ipfo_size = sizeof(state);
                obj.ipfo_ptr = &state;

                state.igi_type = IPFGENITER_STATE;
                state.igi_nitems = 1;
                state.igi_data = dst;

                if (ioctl(state_fd, SIOCGENITER, &obj) != 0)
                        return (NULL);
                if (dst->is_next == NULL) {
                        int n = IPFGENITER_STATE;
                        (void) ioctl(ipf_fd,SIOCIPFDELTOK, &n);
                }
        } else {
                if (kmemcpy((char *)dst, (u_long)src, sizeof(*dst)))
                        return (NULL);
        }
        return (dst);
}


static int fetchfrag( int fd, int type, ipfr_t *frp)
{
        ipfgeniter_t frag;
        ipfobj_t obj;

        obj.ipfo_rev = IPFILTER_VERSION;
        obj.ipfo_type = IPFOBJ_GENITER;
        obj.ipfo_size = sizeof(frag);
        obj.ipfo_ptr = &frag;

        frag.igi_type = type;
        frag.igi_nitems = 1;
        frag.igi_data = frp;

        if (ioctl(fd, SIOCGENITER, &obj))
                return (EFAULT);
        return (0);
}


static int state_matcharray(ipstate_t *stp, int *array)
{
        int i, n, *x, rv, p;
        ipfexp_t *e;

        rv = 0;

        for (n = array[0], x = array + 1; n > 0; x += e->ipfe_size) {
                e = (ipfexp_t *)x;
                if (e->ipfe_cmd == IPF_EXP_END)
                        break;
                n -= e->ipfe_size;

                rv = 0;
                /*
                 * The upper 16 bits currently store the protocol value.
                 * This is currently used with TCP and UDP port compares and
                 * allows "tcp.port = 80" without requiring an explicit
                 " "ip.pr = tcp" first.
                 */
                p = e->ipfe_cmd >> 16;
                if ((p != 0) && (p != stp->is_p))
                        break;

                switch (e->ipfe_cmd)
                {
                case IPF_EXP_IP_PR :
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= (stp->is_p == e->ipfe_arg0[i]);
                        }
                        break;

                case IPF_EXP_IP_SRCADDR :
                        if (stp->is_v != 4)
                                break;
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= ((stp->is_saddr &
                                        e->ipfe_arg0[i * 2 + 1]) ==
                                       e->ipfe_arg0[i * 2]);
                        }
                        break;

                case IPF_EXP_IP_DSTADDR :
                        if (stp->is_v != 4)
                                break;
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= ((stp->is_daddr &
                                        e->ipfe_arg0[i * 2 + 1]) ==
                                       e->ipfe_arg0[i * 2]);
                        }
                        break;

                case IPF_EXP_IP_ADDR :
                        if (stp->is_v != 4)
                                break;
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= ((stp->is_saddr &
                                        e->ipfe_arg0[i * 2 + 1]) ==
                                       e->ipfe_arg0[i * 2]) ||
                                      ((stp->is_daddr &
                                        e->ipfe_arg0[i * 2 + 1]) ==
                                       e->ipfe_arg0[i * 2]);
                        }
                        break;

#ifdef USE_INET6
                case IPF_EXP_IP6_SRCADDR :
                        if (stp->is_v != 6)
                                break;
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= IP6_MASKEQ(&stp->is_src,
                                                 &e->ipfe_arg0[i * 8 + 4],
                                                 &e->ipfe_arg0[i * 8]);
                        }
                        break;

                case IPF_EXP_IP6_DSTADDR :
                        if (stp->is_v != 6)
                                break;
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= IP6_MASKEQ(&stp->is_dst,
                                                 &e->ipfe_arg0[i * 8 + 4],
                                                 &e->ipfe_arg0[i * 8]);
                        }
                        break;

                case IPF_EXP_IP6_ADDR :
                        if (stp->is_v != 6)
                                break;
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= IP6_MASKEQ(&stp->is_src,
                                                 &e->ipfe_arg0[i * 8 + 4],
                                                 &e->ipfe_arg0[i * 8]) ||
                                      IP6_MASKEQ(&stp->is_dst,
                                                 &e->ipfe_arg0[i * 8 + 4],
                                                 &e->ipfe_arg0[i * 8]);
                        }
                        break;
#endif

                case IPF_EXP_UDP_PORT :
                case IPF_EXP_TCP_PORT :
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= (stp->is_sport == e->ipfe_arg0[i]) ||
                                      (stp->is_dport == e->ipfe_arg0[i]);
                        }
                        break;

                case IPF_EXP_UDP_SPORT :
                case IPF_EXP_TCP_SPORT :
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= (stp->is_sport == e->ipfe_arg0[i]);
                        }
                        break;

                case IPF_EXP_UDP_DPORT :
                case IPF_EXP_TCP_DPORT :
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= (stp->is_dport == e->ipfe_arg0[i]);
                        }
                        break;

                case IPF_EXP_IDLE_GT :
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= (stp->is_die < e->ipfe_arg0[i]);
                        }
                        break;

                case IPF_EXP_TCP_STATE :
                        for (i = 0; !rv && i < e->ipfe_narg; i++) {
                                rv |= (stp->is_state[0] == e->ipfe_arg0[i]) ||
                                      (stp->is_state[1] == e->ipfe_arg0[i]);
                        }
                        break;
                }
                rv ^= e->ipfe_not;

                if (rv == 0)
                        break;
        }

        return (rv);
}


static void showtqtable_live(int fd)
{
        ipftq_t table[IPF_TCP_NSTATES];
        ipfobj_t obj;

        bzero((char *)&obj, sizeof(obj));
        obj.ipfo_rev = IPFILTER_VERSION;
        obj.ipfo_size = sizeof(table);
        obj.ipfo_ptr = (void *)table;
        obj.ipfo_type = IPFOBJ_STATETQTAB;

        if (ioctl(fd, SIOCGTQTAB, &obj) == 0) {
                printtqtable(table);
        }
}